JP6195653B2 - refrigerator - Google Patents

refrigerator Download PDF

Info

Publication number
JP6195653B2
JP6195653B2 JP2016158677A JP2016158677A JP6195653B2 JP 6195653 B2 JP6195653 B2 JP 6195653B2 JP 2016158677 A JP2016158677 A JP 2016158677A JP 2016158677 A JP2016158677 A JP 2016158677A JP 6195653 B2 JP6195653 B2 JP 6195653B2
Authority
JP
Japan
Prior art keywords
heat insulating
insulating material
refrigerator
vacuum heat
inner box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2016158677A
Other languages
Japanese (ja)
Other versions
JP2016188760A (en
Inventor
祥 花岡
祥 花岡
中津　哲史
哲史 中津
坂本　克正
克正 坂本
沙織 飯田
沙織 飯田
浩史 中島
浩史 中島
大石　隆
隆 大石
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of JP2016188760A publication Critical patent/JP2016188760A/en
Application granted granted Critical
Publication of JP6195653B2 publication Critical patent/JP6195653B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

Description

本発明は、真空断熱材を備えた冷蔵庫等に関するものである。   The present invention relates to a refrigerator or the like provided with a vacuum heat insulating material.

近年、地球環境保護、原子力発電所の安全性の観点から、省資源、省エネルギー、特に省電力化に対して様々な取り組みがなされている。   In recent years, various efforts have been made for resource saving, energy saving, and particularly power saving from the viewpoint of global environmental protection and safety of nuclear power plants.

省エネルギー、省電力化の観点では、外箱及び内箱で外郭が形成された断熱箱体内に、硬質ウレタンフォームに加えて真空断熱材も配設する技術が提案されており、たとえば、硬質ウレタンフォームと真空断熱材とからなり、前記真空断熱材の被覆率を外箱表面積に対して規定している断熱箱体の発明が提案されている（特許文献１参照）。   From the viewpoint of energy saving and power saving, a technology has been proposed in which a vacuum heat insulating material is arranged in addition to a hard urethane foam in a heat insulating box body in which an outer box and an inner box are formed. And a vacuum heat insulating material, and an invention of a heat insulating box body in which the coverage of the vacuum heat insulating material is defined with respect to the outer box surface area has been proposed (see Patent Document 1).

また、冷蔵庫などの断熱箱体を有する機器においては、内容積の拡大を行うためには、箱体の壁厚さを薄くする必要があり、そのため、外箱と内箱との間の真空断熱材を設け、真空断熱材が設けられている部分にはウレタン断熱材を介さないようにして真空断熱材を直接、外箱と内箱に貼り付けるものが提案されている。（特許文献２参照）   In addition, in a device having a heat insulating box such as a refrigerator, in order to increase the internal volume, it is necessary to reduce the wall thickness of the box, and therefore, vacuum insulation between the outer box and the inner box. There has been proposed a method in which a material is provided and a vacuum heat insulating material is directly attached to an outer box and an inner box without using a urethane heat insulating material in a portion where the vacuum heat insulating material is provided. (See Patent Document 2)

また、冷蔵庫において、引き出し式のケースを支持するレール部材を内箱にネジなどによって固定している。（特許文献３参照）
また、冷蔵庫において、引き出し式の貯蔵室の引出扉にレール部材をネジなどで固定している。（特許文献４参照） In the refrigerator, a rail member that supports the drawer-type case is fixed to the inner box with a screw or the like. (See Patent Document 3)
In the refrigerator, the rail member is fixed to the drawer door of the drawer-type storage chamber with a screw or the like. (See Patent Document 4)

特許第３４７８８１０号公報Japanese Patent No. 3478810 特開平０７−１２０１３８号公報Japanese Patent Laid-Open No. 07-120138 特開２００６−１７７６５４号公報JP 2006-177654 A 特開２００９−２２８９４８号公報JP 2009-228948 A

真空断熱材は、従来の硬質ウレタンフォームの断熱性能に対し、例えば６倍以上の断熱性能を有している。このため、省エネルギー化の観点等から、外箱と内箱との間に形成された空間には、硬質ウレタンフォームに加えて、真空断熱材も配設されるようになってきた。そして、近年、省エネルギー化の要請が高まるにつれて、例えば特許文献１に記載の断熱箱体のように、断熱箱体に配設される真空断熱材の使用量も増大してきている。   The vacuum heat insulating material has, for example, six times or more heat insulating performance as compared with the heat insulating performance of the conventional rigid urethane foam. For this reason, from the viewpoint of energy saving and the like, in addition to the hard urethane foam, a vacuum heat insulating material has also been disposed in the space formed between the outer box and the inner box. In recent years, as the demand for energy saving increases, the amount of vacuum heat insulating material disposed in the heat insulating box, such as the heat insulating box described in Patent Document 1, has also increased.

一方、近年、断熱箱体には、省スペース化や内容積の大容量化の観点から、外箱と内箱との間に形成される空間、つまり断熱箱体の壁厚の低減も求められている。しかしながら、従来の断熱箱体は、硬質ウレタンフォームが主に断熱機能を担い、真空断熱材は硬質ウレタンフォームの断熱機能を補助するという技術思想によって製作されていた。ここで、従来の断熱箱体は、硬質ウレタンフォームを内箱と外箱の間の空間に所定の密度で充填することによって箱体強度を得ているが、ウレタンの厚さを低減して壁面の厚さを低減させようとした場合には、ウレタンの厚さが小さくなりウレタンの密度が増加して断熱性能が低下するため、断熱性能を満足し、しかも必要な箱体強度を得るのが困難であった。   On the other hand, in recent years, heat insulation boxes are also required to reduce the space formed between the outer box and the inner box, that is, the wall thickness of the heat insulation box, from the viewpoint of saving space and increasing the internal volume. ing. However, the conventional heat insulation box has been manufactured based on the technical idea that the hard urethane foam mainly has a heat insulation function, and the vacuum heat insulation material assists the heat insulation function of the hard urethane foam. Here, the conventional heat insulation box body is obtained by filling the space between the inner box and the outer box with rigid urethane foam at a predetermined density, but the strength of the box body is reduced. When trying to reduce the thickness of the urethane, the thickness of the urethane decreases, the density of the urethane increases and the heat insulation performance decreases, so that the heat insulation performance is satisfied and the necessary box strength is obtained. It was difficult.

すなわち、従来の断熱箱体や冷蔵庫などの真空断熱材を備えた機器では、壁面及び箱体の断熱性能及び箱体や壁の強度を硬質ウレタンフォームによって確保しており、断熱箱体の壁厚を低減しようとして硬質ウレタンフォームの厚さを低減させると断熱箱体の断熱性能不足あるいは強度不足が生じ、壁厚さの低減を図ることが困難であるという問題点があった。   In other words, in a device equipped with a vacuum insulation material such as a conventional heat insulation box or refrigerator, the heat insulation performance of the wall surface and the box body and the strength of the box body and wall are secured by rigid urethane foam, and the wall thickness of the heat insulation box body If the thickness of the rigid urethane foam is reduced in order to reduce the thickness, the heat insulation performance of the heat insulation box is insufficient or the strength is insufficient, and it is difficult to reduce the wall thickness.

ここで、特許文献１に記載の断熱箱体においては、真空断熱材の使用量（被覆率）を増大させて、硬質ウレタンフォームの曲げ弾性率（硬質ウレタンフォームの剛性）を大きくしているため、断熱箱体の強度面からは壁厚をある程度低減することが可能とも思われる。しかしながら、特許文献１に記載の断熱箱体は、硬質ウレタンフォームが主に断熱機能を担い、真空断熱材は硬質ウレタンフォームの断熱機能を補助するという技術思想によって製作されたものであり、硬質ウレタンフォームが主に断熱機能を担い、真空断熱材は硬質ウレタンフォームの断熱機能を補助するものであり、硬質ウレタンフォームによって、断熱箱体の断熱性能及び壁面の強度が確保されるものである。しかしながら、硬質ウレタンフォームは厚さが小さくなると密度、曲げ弾性率は大きくなるが、断熱性は悪化する。したがって、硬質ウレタンフォームの断熱性能が低下することを抑制するため、硬質ウレタンフォームの曲げ弾性率、密度が所定値以下（曲げ弾性率１０ＭＰａ以下、密度６０ｋｇ／ｍ３以下）になるように設定している。曲げ弾性率や密度が所定値を越えると箱体強度は満足するが、断熱性能が悪化するため、使用することが困難であった。したがって、特許文献１に記載の断熱箱体は、箱体や壁面の強度、断熱性能の両方を確保するためにウレタンの厚さをある程度以上確保する必要があり、そのためにウレタンの発泡後の密度が所定値以下（密度６０ｋｇ／ｍ３以下）になるように、ウレタンが充填される部位のウレタン流路厚さが所定の厚さ以上になるように調整する必要があり、壁厚の低減を図ることが困難であるという問題点があった。 Here, in the heat insulation box of patent document 1, since the usage-amount (coverage rate) of a vacuum heat insulating material is increased, the bending elastic modulus (rigidity of a hard urethane foam) of hard urethane foam is enlarged. It seems that the wall thickness can be reduced to some extent from the strength aspect of the heat insulation box. However, the heat insulation box described in Patent Document 1 is manufactured based on the technical idea that the hard urethane foam is mainly responsible for the heat insulation function, and the vacuum heat insulating material assists the heat insulation function of the hard urethane foam. The foam mainly performs a heat insulating function, and the vacuum heat insulating material assists the heat insulating function of the hard urethane foam, and the heat insulating performance of the heat insulating box and the strength of the wall surface are ensured by the hard urethane foam. However, when the thickness of the rigid urethane foam is reduced, the density and the flexural modulus are increased, but the heat insulating property is deteriorated. Therefore, in order to suppress the deterioration of the heat insulation performance of the rigid urethane foam, the bending elastic modulus and density of the rigid urethane foam are set to be equal to or less than predetermined values (the bending elastic modulus is 10 MPa or less and the density is 60 kg / m 3 or less). ing. When the flexural modulus or density exceeds a predetermined value, the box strength is satisfied, but the heat insulation performance deteriorates, so that it is difficult to use. Therefore, in the heat insulation box described in Patent Document 1, it is necessary to secure the urethane thickness to a certain extent in order to ensure both the strength of the box and the wall surface, and the heat insulation performance. Must be adjusted so that the urethane flow path thickness of the portion filled with urethane is equal to or greater than the predetermined thickness so that the thickness is equal to or less than the predetermined value (density 60 kg / m 3 or less). There was a problem that it was difficult to plan.

また、特許文献２は、真空断熱材を備えた断熱箱体の強度対策として、真空断熱材の外包材にプラスチック材料などを真空成形、圧空成形等により目的の形状に成形し、内部に粒状の芯材を充填することで強度を確保した凹凸形状に成形した真空断熱材、内箱、外箱を使用している。しかしながら、内箱、外箱を真空断熱材の外包材の凹凸と略同形状の凸凹形状にして嵌めこんで内箱及び外箱に強度を持たせており、外包材、内箱、外箱の形状が複雑となり、コストアップ、組立性の悪化などの課題があった。また、強度確保から真空断熱材も外包材を凹凸形状に成形する必要があり、外包材内に封入する芯材も外包材の凹凸形状に沿った形状にする必要があるため、芯材に流動性を有する粒状のものを使用する必要があり、ガラス繊維などの繊維系芯材に比べてコストアップとなり、断熱性能も悪くなる可能性があった。また、室内（断熱箱体内の貯蔵品などの収納空間）の背面が凹凸形状であり形状が複雑であり意匠性が悪くなっていた。   Patent Document 2 discloses that as a measure against the strength of a heat insulating box provided with a vacuum heat insulating material, a plastic material or the like is formed on the outer packaging material of the vacuum heat insulating material into a desired shape by vacuum forming, pressure forming, etc. A vacuum heat insulating material, an inner box, and an outer box formed into a concavo-convex shape ensuring strength by filling a core material is used. However, the inner box and the outer box are fitted with a concave and convex shape that is substantially the same as the concave and convex shape of the outer packaging material of the vacuum heat insulating material to give strength to the inner box and the outer box. The shape became complicated, and there were problems such as increased costs and deteriorated assemblability. In addition, the vacuum heat insulating material also needs to be molded into an irregular shape to ensure strength, and the core material enclosed in the outer packaging material also needs to have a shape that conforms to the irregular shape of the outer packaging material. It is necessary to use a granular material having the property, and the cost is increased as compared with a fiber-based core material such as glass fiber, and the heat insulation performance may be deteriorated. Further, the back surface of the room (the storage space for stored items in the heat insulation box) has an uneven shape, the shape is complicated, and the design is poor.

したがって、従来の断熱箱体や機器、特に冷蔵庫においては、所定の断熱性能と所定の箱体強度を確保し、真空断熱材を含む断熱壁あるいは断熱材の薄型化が困難であり、したがって、断熱箱体、冷蔵庫、機器等の内容積のさらなる拡大、あるいは外形寸法の小形化を図ることが困難であった。また、特許文献２においては、断熱箱体（冷蔵庫）の背面壁に真空断熱材が設けられているが、真空断熱材の幅が断熱箱体（冷蔵庫）の庫内幅よりも小さいので、断熱性能が悪かった。ここで、断熱性能を向上させるために真空断熱材の幅を大きくした場合には、断熱箱体の背面の幅方向端部（あるいは上下方向の端部）に設けられるウレタン注入口が真空断熱材と干渉するため、真空断熱材を幅方向（あるいは上下方向）に大きくできず、断熱性能の向上が困難であった。   Therefore, in a conventional heat insulation box and equipment, particularly a refrigerator, it is difficult to ensure a predetermined heat insulation performance and a predetermined box strength, and to make a heat insulating wall or heat insulating material including a vacuum heat insulating material thin. It has been difficult to further increase the internal volume of boxes, refrigerators, equipment, etc., or to reduce the external dimensions. Moreover, in patent document 2, although the vacuum heat insulating material is provided in the back wall of the heat insulation box (refrigerator), since the width | variety of a vacuum heat insulating material is smaller than the internal width | variety of a heat insulation box (refrigerator), heat insulation is carried out. The performance was bad. Here, when the width of the vacuum heat insulating material is increased in order to improve the heat insulating performance, the urethane inlet provided in the width direction end portion (or the vertical end portion) of the back surface of the heat insulating box is a vacuum heat insulating material. Therefore, the vacuum heat insulating material cannot be increased in the width direction (or the vertical direction), and it is difficult to improve the heat insulating performance.

また、特許文献３、特許文献４に記載の冷蔵庫では、引き出し式の貯蔵室のケースを支持するレール部材あるいは扉フレームをネジによって断熱壁（内箱、あるいは内箱と外箱の間のウレタン断熱材、あるいは内箱と外箱の間に設けられる補強部材）に固定している。しかし、外箱と内箱の間に真空断熱材が配設された場合、真空断熱材と内箱の間の断熱材の厚さが薄い場合には、真空断熱材の厚さのバラツキなどによりレール部材あるいは扉フレームの固定ネジが真空断熱材の外包材を傷つけたり、破ったりして真空断熱材の断熱性能の低下、信頼性の低下を引き起こす恐れがあった。   Further, in the refrigerators described in Patent Document 3 and Patent Document 4, a rail member or a door frame that supports a case of a drawer-type storage chamber is insulated with a heat insulating wall (an inner box, or an urethane box between an inner box and an outer box). Material, or a reinforcing member provided between the inner box and the outer box). However, when a vacuum heat insulating material is disposed between the outer box and the inner box, if the thickness of the heat insulating material between the vacuum heat insulating material and the inner box is thin, the thickness of the vacuum heat insulating material may vary. There is a risk that the fixing screw of the rail member or the door frame may damage or break the outer packaging material of the vacuum heat insulating material to cause deterioration of the heat insulating performance and reliability of the vacuum heat insulating material.

また、真空断熱材を傷つけないためにネジのネジ部の長さを短くすることが考えられるが、真空断熱材と内箱の間に充填されるウレタン断熱材の強度（たとえば密度、曲げ弾性等）が小さいとネジの保持強度も弱く、またウレタンと一体に形成される断熱壁の強度も弱いので、断熱壁あるいは箱体が変形したり、あるいはネジが緩んだりする恐れがあり信頼性が低下するため、ネジ部長さを所定長さ以下には短くできなかった。そのため、真空断熱材を有する断熱壁にネジあるいは嵌合構造などにより保持あるいは固定される別部材（たとえばケースを支持するレール部材あるいは扉フレームなどのように重量物を支持する重量物支持部材、あるいは貯蔵室を冷却する冷気を生成する冷却器あるいは貯蔵室に冷気を送風するファンなどのように運転時の振動の影響を受ける振動影響部材など）を取り付ける場合には、取り付ける部位は取り付け強度が得られる壁厚さが必要であり、また、ネジの取り付け強度の関係からネジなどの固定部材のネジ部の長さも所定長さ（たとえば１５ｍｍ）以下にすることが困難なため、壁厚さを小さくすることが困難であり、内容積を大きくすることが困難であった。   In addition, it is conceivable to shorten the length of the screw portion of the screw so as not to damage the vacuum heat insulating material. However, the strength of the urethane heat insulating material filled between the vacuum heat insulating material and the inner box (for example, density, bending elasticity, etc.) ) Is low, the holding strength of the screw is low, and the heat insulating wall formed integrally with the urethane is also weak, so the heat insulating wall or box may be deformed or the screw may be loosened, reducing reliability. For this reason, the length of the screw portion could not be shortened to a predetermined length or less. Therefore, another member that is held or fixed to a heat insulating wall having a vacuum heat insulating material by a screw or a fitting structure (for example, a heavy weight support member that supports a heavy object such as a rail member or a door frame that supports a case, or When installing a vibration-affected member that is affected by vibration during operation, such as a cooler that generates cool air to cool the storage room or a fan that blows cool air into the storage room, the attachment site has sufficient mounting strength. The wall thickness of the fixing member such as a screw is difficult to reduce to a predetermined length (for example, 15 mm) or less because of the mounting strength of the screw. It was difficult to increase the internal volume.

本発明は上述のような課題を解決するためになされたものであり、断熱箱体を有した冷蔵庫の断熱性能と強度を確保することを主たる目的とする。併せて、断熱壁あるいは断熱材の薄型化が可能な断熱箱体、冷蔵庫、貯湯装置、高温部あるいは低温部を有する機器などを得ることを目的とする。   This invention is made | formed in order to solve the above subjects, and makes it the main objective to ensure the heat insulation performance and intensity | strength of the refrigerator which has the heat insulation box. In addition, an object is to obtain a heat insulating box, a refrigerator, a hot water storage device, a device having a high temperature part or a low temperature part, etc., capable of reducing the thickness of the heat insulating wall or the heat insulating material.

また、断熱箱体、冷蔵庫、機器などの内容積を従来よりも拡大すること（室の容積の拡大化）、あるいは断熱箱体、冷蔵庫、機器などの外形寸法を小さくする（外形寸法の小形化）ことが可能な断熱箱体、冷蔵庫、貯湯装置、機器などを得ることを目的とする。   Also, increase the internal volume of the heat insulation box, refrigerator, equipment, etc. (expand the volume of the room), or reduce the external dimensions of the heat insulation box, refrigerator, equipment, etc. (reduction of the external dimensions) The purpose is to obtain a heat insulating box, refrigerator, hot water storage device, equipment, etc.

また、真空断熱材を有する断熱壁にネジあるいは嵌合構造などにより保持あるいは固定される別部材（たとえば重量物支持部材、あるいは振動影響部材など）を取り付ける場合でも、断熱壁あるいは断熱材の薄型化が可能な断熱箱体、冷蔵庫、貯湯装置、機器などを得ることを目的とする。また、信頼性が高く内容積の大きな断熱箱体、冷蔵庫、貯湯装置、機器などを得ることを目的とする。   In addition, even when another member that is held or fixed by a screw or a fitting structure is attached to a heat insulating wall having a vacuum heat insulating material (for example, a heavy load support member or a vibration influencing member), the heat insulating wall or the heat insulating material is made thinner. The purpose is to obtain a heat insulating box, refrigerator, hot water storage device, equipment, etc. Another object of the present invention is to obtain a heat-insulating box, a refrigerator, a hot water storage device, equipment, and the like that are highly reliable and have a large internal volume.

また、壁厚さを小さくするとともに、室内（たとえば貯蔵品収納する貯蔵室内）の意匠性も向上させることを目的とする。   Another object of the present invention is to reduce the wall thickness and improve the design of a room (for example, a storage room for storing stored items).

また、貯湯タンクなどの熱源を断熱する場合には、断熱壁の厚さを薄くして円筒状や角筒状や前面開口を有する箱体などの断熱箱体の外形の大きさ（たとえば外径、幅、奥行き、高さなど）を小さくしたコンパクトな断熱箱体、冷蔵庫、貯湯装置、機器などを得ることを目的とする。   When heat sources such as hot water storage tanks are insulated, the thickness of the heat insulation wall is reduced, and the size of the outer shape of the heat insulation box such as a cylinder, a square tube, or a box having a front opening (for example, the outer diameter) The purpose is to obtain a compact heat insulating box, refrigerator, hot water storage device, equipment, etc. with reduced width, depth, height, etc.

本発明の冷蔵庫の第１の態様は、内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に形成され前面側に突出するように設けられた凸部と、前記凸部の側面と前記背面壁を形成する前記内箱とによって形成され後方側に凹んだ凹部と、前記凹部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、を備え、前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成されて前記第２部材が前記内箱に当接して取り付けられており、前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用されるものである。
本発明の冷蔵庫の第２の態様は、内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成され前面側に突出するように設けられた凸部と、前記凸部の側面と前記背面壁を形成する前記内箱とによって前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成され後方側に凹んだ凹部と、前記凹部の第１の取り付け部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、を備え、前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成され、前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用されるものである。
本発明の冷蔵庫の第３の態様は、内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に形成され前面側に突出するように設けられた凸部と、前記凸部の側面と前記背面壁を形成する前記内箱とによって形成され後方側に凹んだ凹部と、前記凹部を形成する前記内箱に形成された第２の凹部と、前記凹部に取り付けられ、前記第２の凹部を覆うように設けられたカバー部材と、を備え、前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成され、前記第２の凹部が前記カバー部材で覆われて冷気風路に使用されるものである。
本発明の冷蔵庫の第４の態様は、内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に形成され、水平断面が斜辺部を有する略三角形状の凸部と、前記斜辺部と前記背面壁を形成する前記内箱とによって形成された凹部と、前記凹部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、を備え、前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成されて前記第２部材が前記内箱に当接して取り付けられており、前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用されるものである。
本発明の冷蔵庫の第５の態様は、内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成され、水平断面が斜辺部を有する略三角形状の凸部と、前記斜辺部と前記背面壁を形成する前記内箱とによって前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成された凹部と、前記凹部の第１の取り付け部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、を備え、前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成され、前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用されるものである。 1st aspect of the refrigerator of this invention is a refrigerator provided with the storage room which is formed from an inner box and an outer box, and has a back wall and a side wall, Between the inner box and the outer box which form the said back wall in the vacuum heat insulating material provided, and the inner box and the inner box and the protrusion provided so as formed in the corner portion protrudes on the front side of which forms the rear wall forming the side wall, the A concave portion formed by a side surface of a convex portion and the inner box forming the back wall and recessed to the rear side, and a cover member attached to the concave portion and provided to cover at least a part of the concave portion. The cover member includes a first member serving as a cover member and a second member provided on the back side of the first member, and the second member is attached in contact with the inner box. cage, at least a part of said cover member of said recess Covered with and is used to cool air passage.
According to a second aspect of the refrigerator of the present invention, in the refrigerator including a storage chamber having an inner box and an outer box and having a back wall and a side wall, between the inner box and the outer box forming the back wall. a vacuum heat insulating material provided on the front side is formed substantially over the entire height range of the vertical direction of the storage compartment in the corner portion between the inner box forming said inner box and said rear wall forming the side wall A convex part provided to project, and a concave part that is formed over substantially the entire height range in the vertical direction of the storage chamber and is recessed rearward by the inner box forming the side surface of the convex part and the back wall, A cover member attached to the first attachment portion of the recess and provided to cover at least a part of the recess, wherein the cover member is a first member as a cover member, and the first member The second part provided on the back side of Is composed of a, at least a portion of the recess is covered with the cover member and is used to cool air passage.
According to a third aspect of the refrigerator of the present invention, in the refrigerator including a storage chamber having an inner box and an outer box and having a back wall and a side wall, between the inner box and the outer box forming the back wall. in the vacuum heat insulating material provided, and the inner box and the inner box and the protrusion provided so as formed in the corner portion protrudes on the front side of which forms the rear wall forming the side wall, the A concave portion formed by a side surface of a convex portion and the inner box forming the back wall and recessed rearward, a second concave portion formed in the inner box forming the concave portion, and attached to the concave portion, A cover member provided so as to cover the second recess, and the cover member includes a first member as a cover member and a second member provided on the back side of the first member. And the second recess is covered with the cover member to form a cold air passage. It is intended to be use.
According to a fourth aspect of the refrigerator of the present invention, in the refrigerator including a storage chamber having an inner box and an outer box and having a back wall and a side wall, between the inner box and the outer box forming the back wall. a vacuum heat insulating material provided, are formed in the corner portion between the inner box forming said inner box and said rear wall forming the side wall, a substantially triangular protrusion horizontal section has a slant portion A recess formed by the oblique side part and the inner box forming the back wall , and a cover member attached to the recess and provided to cover at least a part of the recess. The member includes a first member as a cover member and a second member provided on the back side of the first member, and the second member is attached in contact with the inner box, and the concave portion at least partially covered with the cover member of the And it is used in the air duct.
According to a fifth aspect of the refrigerator of the present invention, in the refrigerator provided with a storage chamber having an inner box and an outer box and having a back wall and a side wall, between the inner box and the outer box forming the back wall. in the vacuum heat insulating material provided, is formed over substantially the entire height range of the vertical direction of the storage compartment in the corner portion between the inner box forming said inner box and said rear wall forming the side wall, the horizontal cross section a substantially triangular protrusion but with oblique side, and a recess formed substantially over the entire height range of the vertical direction of the inner box and the storage chamber by forming the rear wall and the oblique side, the said recess A cover member attached to one attachment portion and provided so as to cover at least a part of the recess , the cover member being a first member as a cover member, and a back surface side of the first member. And a second member provided. Is, and is used to cool air passage at least a portion of said recess is covered with the cover member.

上記の構成により、壁厚さを小さくするとともに、室内（たとえば貯蔵品収納する貯蔵室内）の意匠性も向上する。   With the above configuration, the wall thickness is reduced, and the design of the room (for example, a storage room for storing stored items) is also improved.

本発明の実施の形態１に係る冷蔵庫の正面図である。It is a front view of the refrigerator which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る冷蔵庫の側断面図である。It is a sectional side view of the refrigerator which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る冷蔵庫の制御装置のブロック図である。It is a block diagram of the control apparatus of the refrigerator which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る冷蔵庫の横断面図である。It is a cross-sectional view of the refrigerator according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る別の冷蔵庫の横断面図である。It is a cross-sectional view of another refrigerator according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る別の冷蔵庫の横断面図である。It is a cross-sectional view of another refrigerator according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る別の冷蔵庫の横断面図である。It is a cross-sectional view of another refrigerator according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る別の冷蔵庫の横断面図である。It is a cross-sectional view of another refrigerator according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る冷蔵庫の前面扉を除いた場合の冷蔵庫の正面図である。It is a front view of a refrigerator at the time of removing the front door of the refrigerator which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る冷蔵庫の側断面図である。It is a sectional side view of the refrigerator which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る断熱箱体の正面断面図である。It is front sectional drawing of the heat insulation box which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る断熱箱体の背面図である。It is a rear view of the heat insulation box which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る断熱箱体の斜視図である。It is a perspective view of the heat insulation box which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る断熱箱体の斜視図である。It is a perspective view of the heat insulation box which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る断熱箱体の硬質ウレタンフォームの密度と熱伝導率の関係を示す図である。It is a figure which shows the relationship between the density of the rigid urethane foam of the heat insulation box which concerns on Embodiment 1 of this invention, and thermal conductivity. 本発明の実施の形態１を表す硬質ウレタンフォームの密度と曲げ弾性率を示す図である。It is a figure which shows the density and bending elastic modulus of the rigid urethane foam showing Embodiment 1 of this invention. 本発明の実施の形態１に係る硬質ウレタンフォームを充填したときのウレタンの流路厚さとウレタンの熱伝導率の関係を示す図である。It is a figure which shows the relationship between the flow path thickness of urethane when it fills with the hard urethane foam which concerns on Embodiment 1 of this invention, and the thermal conductivity of urethane. 本発明の実施の形態１を表す硬質ウレタンフォームを充填したときのウレタンの流路厚さとウレタンの曲げ弾性率の関係を示す図である。It is a figure which shows the relationship between the flow-path thickness of urethane when it fills with the hard urethane foam showing Embodiment 1 of this invention, and the bending elastic modulus of urethane. 本発明の実施の形態１を表す断熱箱体の壁厚さに対する硬質ウレタンの厚さの比率と複合熱伝導率の関係を示す図である。It is a figure which shows the relationship between the ratio of the thickness of the hard urethane with respect to the wall thickness of the heat insulation box which represents Embodiment 1 of this invention, and composite heat conductivity. 本発明の実施の形態１を表す断熱箱体の壁内空間に占める真空断熱材の充填率と、断熱箱体の変形量の関係を示した図である。It is the figure which showed the relationship between the filling rate of the vacuum heat insulating material which occupies the space in the wall of the heat insulation box which represents Embodiment 1 of this invention, and the deformation amount of a heat insulation box. 本発明の実施の形態１を表す断熱箱体の側面部と背面部の表面積に対する真空断熱材の占める面積比率と箱体変形量の関係を表した図である。It is a figure showing the relationship between the area ratio which the vacuum heat insulating material occupies with respect to the surface area of the side part of a heat insulation box which represents Embodiment 1 of this invention, and a back surface part, and a box deformation. 本発明の実施の形態１に係る断熱箱体の背面図である。It is a rear view of the heat insulation box which concerns on Embodiment 1 of this invention. 硬質ウレタンフォームが発泡した後の断熱箱体側壁の断面形状の模式図である。It is a schematic diagram of the cross-sectional shape of the heat insulation box side wall after a hard urethane foam foams. 硬質ウレタンフォームが発泡した後の断熱箱体側壁の別の断面形状の模式図である。It is a schematic diagram of another cross-sectional shape of the heat insulation box side wall after a hard urethane foam foams. 本発明の実施の形態を表す冷蔵庫のレール取り付け部近傍の要部断面図である。It is principal part sectional drawing of the rail attachment part vicinity of the refrigerator showing embodiment of this invention. 本発明の実施の形態を表す別の冷蔵庫のレール取り付け部近傍の要部断面図である。It is principal part sectional drawing of the rail attachment part vicinity of another refrigerator showing embodiment of this invention. 本発明の実施の形態を表す別の冷蔵庫のレール取り付け部近傍の要部断面図である。It is principal part sectional drawing of the rail attachment part vicinity of another refrigerator showing embodiment of this invention. 本発明の実施の形態を表す別の冷蔵庫のレール取り付け部近傍の要部断面図である。It is principal part sectional drawing of the rail attachment part vicinity of another refrigerator showing embodiment of this invention.

実施の形態１
（冷蔵庫）
図１は本発明の実施の形態１を表す冷蔵庫の正面図、図２は本発明の実施の形態１を示す冷蔵庫の側断面図である。これらの図に示すように、冷蔵庫１は最上段に観音開き式（あるいは開閉式）の貯蔵室である冷蔵室２を備えている。冷蔵室２の下には貯蔵室である製氷室３及び切替室４が左右に並列に配設されている。冷蔵庫１の最下段には貯蔵室である冷凍室６を備え、冷凍室６の上には貯蔵室である野菜室５を備えている。この野菜室５は、左右に並列に配設された製氷室３と切替室４の下方で、冷凍室６の上方に設けられている。 Embodiment 1
(refrigerator)
1 is a front view of a refrigerator representing Embodiment 1 of the present invention, and FIG. 2 is a side sectional view of the refrigerator illustrating Embodiment 1 of the present invention. As shown in these drawings, the refrigerator 1 includes a refrigerator compartment 2 which is a double door (or openable) storage room at the top. Below the refrigerator compartment 2, an ice making room 3 and a switching room 4 which are storage rooms are arranged in parallel on the left and right. A freezer room 6 serving as a storage room is provided at the bottom of the refrigerator 1, and a vegetable room 5 serving as a storage room is provided above the freezer room 6. The vegetable compartment 5 is provided above the freezing compartment 6 below the ice making compartment 3 and the switching compartment 4 arranged in parallel on the left and right.

貯蔵室である冷蔵室２内は、貯蔵品（食料品や飲料品等）を収納するための貯蔵品収納空間を有し、この貯蔵品収納空間には、貯蔵品を載置する複数の樹脂製やガラス製の棚８０が設けられている。この貯蔵品収納空間の下方（庫内棚の下方）には、略密閉構造の容器２Ｘ、２Ｙが設けられており、＋３℃〜−３℃程度のチルド温度帯に制御されるチルド室２Ｘ、あるいは、＋３℃〜＋５℃程度に維持される野菜室温度帯に制御される野菜室２Ｙとして使用される。この略密閉構造の容器２Ｘ、２Ｙは、たまごを保存する卵室として使用しても良い。また、この略密閉構造の容器２Ｘ、２Ｙは、たとえば引出式構造を有しており、容器を引き出すことで貯蔵品の出し入れが行える。   The refrigerator compartment 2, which is a storage room, has a storage product storage space for storing storage products (food, beverages, etc.), and the storage product storage space has a plurality of resins on which the storage products are placed. A shelf 80 made of glass or glass is provided. Below this stored item storage space (below the shelf in the cabinet), containers 2X and 2Y having a substantially sealed structure are provided, and a chilled chamber 2X controlled to a chilled temperature range of about + 3 ° C to -3 ° C, Alternatively, it is used as a vegetable room 2Y controlled in a temperature range of the vegetable room maintained at about + 3 ° C to + 5 ° C. The substantially sealed containers 2X and 2Y may be used as an egg compartment for storing eggs. Further, the containers 2X and 2Y having a substantially sealed structure have, for example, a pull-out structure, and a stored product can be taken in and out by pulling out the container.

略密閉構造の容器２Ｘ、２Ｙの構造としては、上面が開口した上面開口部を有する容器の上面開口部に着脱式のフタを設けるようにすれば略密閉構造の容器を構成できる。このフタは容器の方に設けても良いし、容器上部に設けられている棚８０や仕切壁に設けても良いし、容器上部の棚や仕切壁のそのものをフタと兼用しても良い。   As the structure of the containers 2X and 2Y having a substantially sealed structure, a container having a substantially sealed structure can be configured by providing a detachable lid on the upper surface opening of the container having an upper surface opening having an upper surface opened. The lid may be provided on the container, may be provided on a shelf 80 or a partition wall provided on the top of the container, or the shelf or the partition wall itself on the top of the container may be used as the lid.

もちろん、各室の配置は本実施の形態を制限するものではなく、上段に設けられた冷蔵室２の下に製氷室３及び切替室４を左右に並列に配設し、これら左右に並列に配設された製氷室３及び切替室４の下方で、かつ下段に設けられた野菜室５の上部に冷凍室６を配設する、いわゆる野菜室５と左右に並列に配設された製氷室３及び切替室４との間に冷凍室６を配設するミッドフリーザータイプの方が低温室（例えば、製氷室３、切替室４、冷凍室６）が近接するため低温室間の断熱材が不要であり、また、熱漏れも少ないので省エネルギーで低コストの冷蔵庫が提供できる。   Of course, the arrangement of the respective chambers is not limited to the present embodiment, and the ice making chamber 3 and the switching chamber 4 are arranged in parallel on the left and right below the refrigerating chamber 2 provided in the upper stage. An ice making room arranged in parallel with the so-called vegetable room 5 in the freezing room 6 below the arranged ice making room 3 and switching room 4 and above the vegetable room 5 provided in the lower stage. 3 and the switching chamber 4, the mid freezer type in which the freezing chamber 6 is disposed is closer to the low temperature chamber (for example, the ice making chamber 3, the switching chamber 4, the freezing chamber 6), so that a heat insulating material between the low temperature chambers is provided. Since it is unnecessary and there are few heat leaks, an energy-saving and low-cost refrigerator can be provided.

貯蔵室である冷蔵室２の正面側開口部は、自在に開放、閉塞することができる観音開き式の冷蔵室扉７が設けられており、この冷蔵室扉７は、冷蔵室扉左７Ａ、冷蔵室扉右７Ｂの２つにより観音式扉を構成している。もちろん、観音式扉ではなく、１枚式の回転式扉でもよい。他の貯蔵室である製氷室３、切替室４、野菜室５、冷凍室６には、製氷室３の開口部を自在に開口・閉塞することができる引出式の製氷室扉８、切替室４の開口部を自在に開放・閉塞することができる引出式の切替室扉９、野菜室５の開口部を自在に開放・閉塞することができる引出式の野菜室扉１０、冷凍室６の開口部を自在に開放・閉塞することができる引出式の冷凍室扉１１がそれぞれ設けられている。ここで、引出式の貯蔵室扉（たとえば、製氷室扉８、切替室扉９、野菜室扉１０、冷凍室扉１１）には、貯蔵室を形成する内箱７５０にレール部材がネジなどのレール固定部材７３５あるいは嵌合構造にて固定あるいは保持されており、扉内板に固定あるいは保持された扉フレームがレール部材上を直接あるいはローラなどを介して摺動することで、扉及び扉フレームに載置されたケースが引き出し可能となっている。   The front side opening of the refrigerating room 2 which is a storage room is provided with a double door type refrigerating room door 7 which can be freely opened and closed. This refrigerating room door 7 has a refrigerating room door left 7A and a refrigerating room door 7A. Two doors on the right side of the room door 7B constitute a Kannon type door. Of course, a single-piece rotary door may be used instead of the Kannon door. The ice making room 3, the switching room 4, the vegetable room 5, and the freezing room 6, which are other storage rooms, have a drawer type ice making room door 8 and a switching room that can freely open and close the opening of the ice making room 3. Of the drawer type switching chamber door 9 that can freely open and close the opening of 4, the drawer type vegetable room door 10 that can freely open and close the opening of the vegetable room 5, and the freezing room 6 A drawer-type freezer compartment door 11 that can freely open and close the opening is provided. Here, in the drawer-type storage room door (for example, the ice making room door 8, the switching room door 9, the vegetable room door 10, and the freezing room door 11), a rail member is attached to the inner box 750 forming the storage room, such as a screw. The door and door frame are fixed or held by the rail fixing member 735 or the fitting structure, and the door frame fixed or held on the door inner plate slides on the rail member directly or via a roller. The case placed on can be pulled out.

また、貯蔵室である冷蔵室２の左右の冷蔵室扉左７Ａ、冷蔵室扉右７Ｂのいずれかには、後述する図３に示すように、貯蔵室内の温度設定などを行う操作スイッチ（部屋選択スイッチ６０ａ、温度帯切替スイッチ６０ｂ、瞬冷凍スイッチ６０ｃ、製氷切替スイッチ６０ｄ、ミスト供給スイッチ６０ｅ）や庫内温度や設定温度などの温度情報の表示を行う操作パネル６０が設けられており、操作スイッチの操作情報や液晶表示部の表示情報や貯蔵室内の温度情報などが冷蔵庫の背面上部（冷蔵室背面）に設けられたマイコンなどを実装した制御基板で構成される制御装置３０によって制御される。   Further, as shown in FIG. 3, which will be described later, an operation switch (room for setting the temperature in the storage chamber) is provided on either the left or right refrigerator door left 7A or the right refrigerator door right 7B of the refrigerator room 2 as a storage room. A selection switch 60a, a temperature zone changeover switch 60b, a quick freeze switch 60c, an ice making changeover switch 60d, a mist supply switch 60e) and an operation panel 60 for displaying temperature information such as the inside temperature and the set temperature are provided. Operation information of the switch, display information on the liquid crystal display unit, temperature information in the storage chamber, and the like are controlled by the control device 30 configured by a control board mounted with a microcomputer or the like provided on the upper back of the refrigerator (the back of the refrigerator compartment). .

冷蔵庫１の背面最下部に設けられている機械室１Ａには圧縮機１２が配されている。冷蔵庫１は、冷凍サイクルを備えており、圧縮機１２は冷凍サイクルを構成する１部品であり機械室１Ａに配置されており、冷凍サイクル内の冷媒を圧縮する作用を有する。圧縮機１２で圧縮された冷媒は凝縮器（図示せず）において凝縮される。凝縮された状態の冷媒は減圧装置である毛細管（図示せず）や膨張弁（図示せず）において減圧される。冷却器１３は、冷蔵庫の冷凍サイクルを構成する１部品で冷却器室１３１に配置されている。減圧装置にて減圧された冷媒は、冷却器１３において蒸発し、この蒸発時の吸熱作用により冷却器１３周辺の気体は冷却される。冷気循環用ファン１４は冷却器室１３１内で冷却器１３の近傍に配置されており、冷却器１３周辺で冷却された冷気を冷気風路（例えば、切替室冷気風路１６や冷蔵室冷気風路５０など）を介して冷蔵庫１の貯蔵室である各室（冷蔵室２、製氷室３、切替室４、野菜室５、冷凍室６）へと送風するためのものである。   A compressor 12 is disposed in the machine room 1 </ b> A provided at the lowermost rear portion of the refrigerator 1. The refrigerator 1 is provided with a refrigeration cycle, and the compressor 12 is a component that constitutes the refrigeration cycle and is disposed in the machine room 1A, and has an action of compressing a refrigerant in the refrigeration cycle. The refrigerant compressed by the compressor 12 is condensed in a condenser (not shown). The condensed refrigerant is decompressed in a capillary tube (not shown) or an expansion valve (not shown) which is a decompression device. The cooler 13 is a component that constitutes the refrigeration cycle of the refrigerator and is disposed in the cooler chamber 131. The refrigerant decompressed by the decompression device evaporates in the cooler 13, and the gas around the cooler 13 is cooled by the endothermic action during the evaporation. The cool air circulation fan 14 is disposed in the cooler chamber 131 in the vicinity of the cooler 13, and cools the cool air around the cooler 13 as a cool air path (for example, the switching chamber cool air path 16 or the refrigerating room cool air wind). It is for ventilating to each room (refrigeration room 2, ice making room 3, switching room 4, vegetable room 5, freezing room 6) which is a storage room of refrigerator 1 via way 50 etc.).

冷却器室１３１内に設けられている冷却器１３の下方には冷却器１３の除霜を行う除霜手段である除霜用ヒータ１５０（除霜用のガラス管ヒータで、例えば、石英ガラス管内に石英ガラス管を透過する波長０．２μｍ〜４μｍの光を出すカーボン繊維が用いられたカーボンヒータなど）が設けられている。冷却器１３と除霜用ヒータ１５０の間で除霜用ヒータ１５０の上部には、冷却器１３より落下してきた除霜水が直接除霜用ヒータ１５０に当たらない様に、ヒータルーフ１５１が設けられている。除霜用ヒータ１５０にカーボンヒータなどの黒色媒体のヒータを使用すれば、輻射伝熱により冷却器１３の霜を効率的に溶かすことができるため表面温度を低温度（約７０℃〜８０℃）にすることが可能となり、冷凍サイクルに使用される冷媒に可燃性冷媒（例えば、炭化水素冷媒であるイソブタンなど）を使用している場合に冷媒漏れなどが発生しても着火の危険性が低減できる。また、ニクロム線ヒータに比べて輻射伝熱により冷却器１３の霜を効率的に溶かすことができるため冷却器１３に着霜した霜が除々に溶けるようになり霜が塊となってどさっと落下しにくくなるので、ヒータルーフ１５１に落下したときの落下音が低減できるので、低騒音で除霜効率の良い冷蔵庫が提供できる。   Below the cooler 13 provided in the cooler chamber 131 is a defrosting heater 150 (a defrosting glass tube heater, which is a defrosting means for defrosting the cooler 13, for example, in a quartz glass tube. And a carbon heater using carbon fibers that emit light having a wavelength of 0.2 μm to 4 μm that is transmitted through the quartz glass tube. A heater roof 151 is provided above the defrosting heater 150 between the cooler 13 and the defrosting heater 150 so that the defrosting water falling from the cooler 13 does not directly hit the defrosting heater 150. ing. If a black medium heater such as a carbon heater is used as the defrosting heater 150, the frost in the cooler 13 can be efficiently melted by radiant heat transfer, so the surface temperature is low (about 70 ° C. to 80 ° C.). If a flammable refrigerant (such as isobutane, which is a hydrocarbon refrigerant) is used as the refrigerant used in the refrigeration cycle, the risk of ignition is reduced even if refrigerant leakage occurs. it can. Moreover, since the frost of the cooler 13 can be efficiently melted by radiant heat transfer as compared with the nichrome wire heater, the frost formed on the cooler 13 gradually melts, and the frost quickly falls into a lump. Therefore, since the falling sound when falling on the heater roof 151 can be reduced, a refrigerator with low noise and good defrosting efficiency can be provided.

ここで、除霜用ヒータ１５０は、冷却器１３に一体に組み込まれたかち込みタイプのヒータであっても良い。また、ガラス管タイプヒータとかち込みタイプヒータを併用しても良い。冷却器１３で生成される除霜水あるいはヒータルーフ１５１に落下した除霜水は、冷却器室内で落下して冷却器室１３１の下方に設けられている除霜水排出口より冷蔵庫外部（たとえば機械室１Ａに設けられている蒸発皿等）に排出される。   Here, the defrosting heater 150 may be a stowage type heater integrally incorporated in the cooler 13. A glass tube type heater and a bite type heater may be used in combination. The defrost water generated in the cooler 13 or the defrost water dropped on the heater roof 151 falls in the cooler chamber and is provided outside the refrigerator (for example, a machine) from the defrost water discharge port provided below the cooler chamber 131. It is discharged to an evaporating dish or the like provided in the chamber 1A.

風量調整手段である切替室ダンパ１５は、冷気循環用ファン１４により貯蔵室である切替室４に送風される冷気の冷気量を調整し、切替室４内の温度を所定温度に制御したり、切替室４の設定温度を切り替えたりするためのものである。冷却器１３で冷却された冷気が冷気風路である切替室冷気風路１６を通って、切替室４内に送風される。また、この切替室冷気風路１６は、切替室ダンパ１５の下流に配されている。   The switching chamber damper 15 that is an air volume adjusting means adjusts the amount of cool air blown to the switching chamber 4 that is a storage chamber by the cool air circulation fan 14, and controls the temperature in the switching chamber 4 to a predetermined temperature, This is for switching the set temperature of the switching chamber 4. The cold air cooled by the cooler 13 is blown into the switching chamber 4 through the switching chamber cold air passage 16 which is a cold air passage. The switching chamber cold air passage 16 is arranged downstream of the switching chamber damper 15.

また、風量調整手段である冷蔵室ダンパ５５も、冷気循環用ファン１４により貯蔵室である冷蔵室２に送風される冷気の冷気量を調整し、冷蔵室２内の温度を所定温度に制御したり、冷蔵室２の設定温度を変更したりするためのものである。冷却器１３で冷却された冷気が冷気風路である冷蔵室冷気風路５０を通って、冷蔵室２内に送風される。   Further, the cold room damper 55 as the air volume adjusting means also adjusts the amount of cold air blown to the cold room 2 as the storage room by the cold air circulation fan 14 and controls the temperature in the cold room 2 to a predetermined temperature. Or for changing the set temperature of the refrigerator compartment 2. The cold air cooled by the cooler 13 is blown into the refrigerating chamber 2 through the refrigerating chamber cold air passage 50 which is a cold air passage.

貯蔵室である、例えば切替室４は、貯蔵室内の温度を冷凍温度帯（−１７℃以下）から野菜室温度帯（３〜１０℃）までの間で複数の段階から選択可能な部屋（貯蔵室）であり、冷蔵庫１の冷蔵室扉左７Ａ、冷蔵室扉右７Ｂのいずれかに設置した操作パネル６０を操作することで貯蔵室内の温度の選択や切り替えを行う。   For example, the switching room 4 which is a storage room is a room (storage) in which the temperature in the storage room can be selected from a plurality of stages between a freezing temperature zone (−17 ° C. or less) and a vegetable room temperature zone (3 to 10 ° C.). The temperature in the storage room is selected or switched by operating the operation panel 60 installed in either the refrigerator compartment door left 7A or the refrigerator compartment door right 7B of the refrigerator 1.

切替室４の、例えば奥側壁面には、切替室４内の空気温度を検知するための第１の温度検出手段である切替室サーミスタ１９（図３参照）を設置し、切替室４の例えば天上面（中央部、前面部、あるいは後面部など）には貯蔵室である切替室４内に投入された貯蔵物の表面温度を直接的に検出するための第２の温度検出手段であるサーモパイル２２（図３参照、あるいは赤外線センサ）を設置している。冷却器室１３１から切替室４に冷気を送る風路には、風量の制御や風路を遮蔽して冷気の流入を阻止することができる風量調整装置である切替室ダンパ１５を設け、第１の温度検出手段である切替室サーミスタ１９の検出温度（あるいはサーモパイル２２の検出温度）により切替室ダンパ１５を開・閉することで、切替室４の温度が選択された温度帯になるように調整したり、設定された温度範囲内に入るように制御装置３０にて制御される。また、第２の温度検出手段であるサーモパイル２２にて切替室４内の貯蔵物である食品の温度を直接検出するようにしている。ここで、機械室１Ａは、冷蔵庫１の背面最下部に設けられている例をしめしたが、背面上部（たとえば背面最上部）に設けても良い。   A switching chamber thermistor 19 (see FIG. 3), which is a first temperature detecting means for detecting the air temperature in the switching chamber 4, is installed on, for example, the back wall surface of the switching chamber 4. A thermopile, which is a second temperature detecting means for directly detecting the surface temperature of the stored material put into the switching chamber 4 which is a storage chamber, on the top surface (center portion, front surface portion, rear surface portion, etc.) 22 (see FIG. 3 or an infrared sensor) is installed. The air passage that sends the cold air from the cooler chamber 131 to the switching chamber 4 is provided with a switching chamber damper 15 that is an air volume adjusting device that can block the air flow by controlling the air volume and blocking the air passage. The temperature of the switching chamber 4 is adjusted to be in the selected temperature range by opening and closing the switching chamber damper 15 by the detection temperature of the switching chamber thermistor 19 (or the detection temperature of the thermopile 22) as the temperature detection means. Or controlled by the control device 30 so as to fall within the set temperature range. Further, the thermopile 22 serving as the second temperature detecting means directly detects the temperature of the food that is stored in the switching chamber 4. Here, although the example in which the machine room 1A is provided at the lowermost part of the back surface of the refrigerator 1 is shown, it may be provided at the upper part of the back surface (for example, the uppermost part of the back surface).

（ミスト供給装置）
貯蔵室であるたとえば冷蔵室２の奥側（背面側）の仕切壁５１（背面壁、断熱壁）には、貯蔵室内の除菌や加湿など行うミストを供給するミスト装置である静電霧化装置２００が設けられている。静電霧化装置２００は、貯蔵室内の空気中の水分を結露水として収集するための冷却部材（たとえば冷却板）が貯蔵室である冷蔵室２内から冷蔵室２の奥側の断熱された背面の仕切壁５１あるいは冷却器１３や冷気循環用ファン１４などが配置される冷却器室１３１の前面壁を形成する冷却器室壁に接触するか、あるいは貫通するように設けられている。仕切壁５１は、背面壁７３０、側壁７９０、天面壁７４０、底面壁７８０、貯蔵室間の仕切壁２４であっても良い。この冷却部材（たとえば冷却板）は、仕切壁５１の背面側や側面側や上下に設けられる冷気風路である冷蔵室冷気風路５０、７６０内の冷気、あるいは、仕切壁５１に対して貯蔵室（たとえば冷蔵室や野菜室）と反対側に設けられる貯蔵室とは別の低温の貯蔵室（たとえば貯蔵室よりも低温の冷凍室や製氷室や切替室など）内の冷気を利用して冷却されるように設けられている。ここでは静電霧化装置２００について説明するが、貯蔵室内の除菌、殺菌あるいは加湿ができれば、別の除菌装置や殺菌装置や加湿装置などであっても良い。 (Mist supply device)
Electrostatic atomization, which is a mist device that supplies mist to be sterilized or humidified in the storage chamber, for example, to the partition wall 51 (back wall, heat insulating wall) on the back side (back side) of the refrigerator compartment 2, for example. An apparatus 200 is provided. In the electrostatic atomizer 200, a cooling member (for example, a cooling plate) for collecting moisture in the air in the storage chamber as condensed water is insulated from the inside of the refrigerator compartment 2, which is the storage chamber, from the back side of the refrigerator compartment 2. The rear partition wall 51 or the cooler chamber wall that forms the front wall of the cooler chamber 131 in which the cooler 13, the cool air circulation fan 14, and the like are arranged is provided so as to contact or penetrate. The partition wall 51 may be the back wall 730, the side wall 790, the top wall 740, the bottom wall 780, and the partition wall 24 between the storage rooms. This cooling member (for example, a cooling plate) is stored in the cold air in the cold air flow paths 50 and 760, which are cold air paths provided on the back side, the side surface, and the top and bottom of the partition wall 51, or stored in the partition wall 51. Using cold air in a low-temperature storage room (for example, a freezing room, ice making room, switching room, etc. that is cooler than the storage room) separate from the storage room provided on the opposite side of the room (for example, a refrigerator room or a vegetable room) It is provided to be cooled. Although the electrostatic atomizer 200 will be described here, another sterilizer, sterilizer, humidifier, or the like may be used as long as it can be sterilized, sterilized, or humidified in the storage chamber.

（表示）
図３は本発明の実施の形態１を表す冷蔵庫１の制御装置３０のブロック図である。制御装置３０にはマイコン３０ａ（マイクロコンピュータ）を搭載し、予め記憶しているプログラムにより、冷蔵庫１の各貯蔵室の温度制御、圧縮機１２や冷気循環用ファン１４の回転数制御、切替室ダンパ１５、冷蔵室ダンパ５５の開閉制御、ミスト装置（静電霧化装置）２００への電圧印加制御などを行っている。操作パネル６０には、たとえば、以下に示すスッチを備える。
（１）冷蔵室、冷凍室、切替室などの貯蔵室を選択する部屋選択スイッチ６０ａ；
（２）切替室などの貯蔵室の温度帯（冷蔵、冷凍、チルド、ソフトフリージングなど）を切替えたり、急冷や強・中・弱などを切り替える温度帯切替スイッチ６０ｂ；
（３）貯蔵室内を過冷却状態を経て冷凍保存する瞬冷凍スイッチ６０ｃ（瞬冷凍は、過冷却冷凍ともいう）；
（４）製氷に関して、透明氷、通常、急速、停止などを選択する製氷切替スイッチ６０ｄ；
（５）ミスト装置２００に通電して貯蔵室内にミスト供給（静電噴霧）を実施するミスト供給スイッチ６０ｅ（静電噴霧選択）。
（６）有線や無線によりインターネットに接続するインターネット接続スイッチ（図示せず）
（７）クラウドサーバや携帯端末など冷蔵庫と有線や無線で接続されているサーバの情報あるいはサーバや携帯端末からの指示内容あるいはサーバや携帯端末へ送信した送信情報を閲覧する閲覧スイッチ（図示せず）
（８）携帯電話や携帯端末やパソコンなどの充電を行う充電スイッチ（図示せず） (display)
FIG. 3 is a block diagram of the control device 30 of the refrigerator 1 representing the first embodiment of the present invention. The control device 30 is equipped with a microcomputer 30a (microcomputer) and controls the temperature of each storage chamber of the refrigerator 1, the rotational speed control of the compressor 12 and the cool air circulation fan 14, and the switching chamber damper according to a program stored in advance. 15. Opening / closing control of the refrigerator compartment damper 55, voltage application control to the mist device (electrostatic atomizer) 200, and the like are performed. The operation panel 60 includes, for example, the switches shown below.
(1) a room selection switch 60a for selecting a storage room such as a refrigerator room, a freezer room, a switching room;
(2) A temperature zone changeover switch 60b for changing the temperature zone (refrigeration, freezing, chilled, soft freezing, etc.) of a storage room such as a changeover room or switching between rapid cooling, strong / medium / weak, etc .;
(3) Instantaneous freezing switch 60c that freezes and stores the storage chamber through a supercooled state (flash freezing is also called supercooled freezing);
(4) Regarding ice making, ice making changeover switch 60d for selecting transparent ice, normal, rapid, stop, etc .;
(5) A mist supply switch 60e (electrostatic spray selection) for energizing the mist device 200 to supply mist (electrostatic spray) into the storage chamber.
(6) Internet connection switch (not shown) for connecting to the Internet by wire or wireless
(7) Browsing switch (not shown) for browsing information of a server connected to a refrigerator such as a cloud server or a portable terminal by wire or wireless, instruction content from the server or portable terminal, or transmission information transmitted to the server or portable terminal )
(8) Charge switch (not shown) for charging mobile phones, mobile terminals, personal computers, etc.

ここで、貯蔵室（例えば切替室４）内の温度を検出する温度検出センサについて説明する。本実施の形態では、貯蔵室（例えば、切替室４）内の温度を検出する温度検出センサとして、第１の温度検出手段である切替室サーミスタ１９と第２の温度検出手段であるサーモパイル２２を備えている。貯蔵室（例えば、切替室４）内の空気の温度を検出する第１の温度検出手段である切替室サーミスタ１９の検出温度は、制御装置３０を構成するマイコン３０ａに入力され、マイコン３０ａ（例えば、マイコン３０ａ内の温度判定手段）で所定値と比較して温度判定を行い、所定の温度範囲内に入るように制御を行う。また、貯蔵室（例えば、切替室４）内の食品などの表面温度などを直接検出する第２の温度検出手段であるサーモパイル２２の検出信号はマイコン３０ａに入力され、マイコン３０ａ（例えばマイコン３０ａ内の演算手段）で演算処理されて食品などの表面温度に換算された後、急速冷凍制御や過冷却冷凍制御など所定の温度制御を行う。また、制御装置３０は、各貯蔵室（冷蔵室２、製氷室３、切替室４、野菜室５、冷凍室６）内の温度制御や静電霧化装置２００の通電制御などの各種制御行い、冷蔵室扉左７Ａ、冷蔵室扉右７Ｂのいずれかに設けられた操作パネル６０（表示パネル）あるいはサーバあるいは携帯端末に各貯蔵室の設定温度や食品（表面）温度や各貯蔵室に設置された静電霧化装置２００の動作状況などを表示する。   Here, a temperature detection sensor for detecting the temperature in the storage chamber (for example, the switching chamber 4) will be described. In the present embodiment, as a temperature detection sensor for detecting the temperature in the storage chamber (for example, the switching chamber 4), the switching chamber thermistor 19 as the first temperature detection means and the thermopile 22 as the second temperature detection means. I have. The detected temperature of the switching chamber thermistor 19 which is the first temperature detecting means for detecting the temperature of the air in the storage chamber (for example, the switching chamber 4) is input to the microcomputer 30a constituting the control device 30, and the microcomputer 30a (for example, In the microcomputer 30a, temperature determination is performed by comparing with a predetermined value, and control is performed so that the temperature falls within a predetermined temperature range. Further, a detection signal of the thermopile 22 which is a second temperature detecting means for directly detecting the surface temperature of food in the storage room (for example, the switching room 4) is input to the microcomputer 30a, and the microcomputer 30a (for example, in the microcomputer 30a) And calculating the surface temperature of the food or the like, and then performing predetermined temperature control such as quick freezing control or supercooling freezing control. The control device 30 performs various controls such as temperature control in each storage room (refrigeration room 2, ice making room 3, switching room 4, vegetable room 5, freezing room 6) and energization control of the electrostatic atomizer 200. The set temperature, food (surface) temperature of each storage room, and each storage room are installed on the operation panel 60 (display panel) or server or portable terminal provided on either the left of the refrigerator door 7A or the right of the refrigerator door 7B. The operation status of the electrostatic atomizer 200 is displayed.

（冷蔵庫の箱体構造）
図４は、本発明の実施の形態１を表す冷蔵庫の横断面図である。図は、冷蔵庫１の上下方向に対して垂直な面で冷蔵庫をカットしたときの横断面図である。図４において、図１〜図３と同等部分は同一の符号を付して説明は省略する。 (Refrigerator box structure)
FIG. 4 is a cross-sectional view of the refrigerator representing the first embodiment of the present invention. The figure is a cross-sectional view of the refrigerator 1 cut along a plane perpendicular to the vertical direction of the refrigerator 1. 4, the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.

図４において、冷蔵庫１を構成する断熱箱体７００は、外箱７１０と内箱７５０とから構成され、外箱７１０と内箱７５０との間には、真空断熱材４００が配設されている。真空断熱材４００は、冷蔵庫１の背面に設けられており、外箱７１０に直接、ホットメルトや両面テープなどの第２の介在部材である第２の接着剤を介して貼り付けられている。また、真空断熱材４００は、内箱７５０の一部（たとえば内箱７５０の背面を形成する壁面の左右方向略中央部）に直接、接着剤により貼り付けられており、内箱７５０背面の略中央部を除く側壁７９０近傍の左右端部（コーナー部）は、背面壁７３０よりも前面側に突出した凸部４５０が形成されており、真空断熱材４００はこの凸部４５０と所定長さだけ重なるように配置されるが、凸部４５０には、真空断熱材４００を配置せずウレタンのみが充填されている部位が存在しても良い。また、内箱７５０と真空断熱材４００との間には第１の介在部材である接着剤（たとえば硬質ウレタン等自己接着性を有する発泡断熱材を使用しても良い）が充填されており、真空断熱材４００は、第１の介在部材である接着剤（たとえば硬質ウレタン等）を介して内箱７５０と外箱７１０との間に設けられている。したがって、真空断熱材４００は第１の介在部材及び第２の介在部材によって内箱７５０あるいは外箱７１０に接着あるいは固着あるいは固定されている。   In FIG. 4, a heat insulating box 700 constituting the refrigerator 1 is composed of an outer box 710 and an inner box 750, and a vacuum heat insulating material 400 is disposed between the outer box 710 and the inner box 750. . The vacuum heat insulating material 400 is provided on the back surface of the refrigerator 1 and is directly attached to the outer box 710 via a second adhesive which is a second interposed member such as hot melt or double-sided tape. Further, the vacuum heat insulating material 400 is directly attached to a part of the inner box 750 (for example, a substantially central portion in the left-right direction of the wall surface forming the back of the inner box 750) with an adhesive, The left and right end portions (corner portions) in the vicinity of the side wall 790 excluding the central portion are formed with convex portions 450 that protrude to the front side from the rear wall 730, and the vacuum heat insulating material 400 is only a predetermined length from the convex portion 450. Although it arrange | positions so that it may overlap, the site | part with which only the urethane is filled may not exist in the convex part 450, without arrange | positioning the vacuum heat insulating material 400. In addition, an adhesive that is a first interposed member (for example, a foam heat insulating material having self-adhesive properties such as hard urethane may be used) is filled between the inner box 750 and the vacuum heat insulating material 400, The vacuum heat insulating material 400 is provided between the inner box 750 and the outer box 710 via an adhesive (for example, hard urethane) that is a first interposed member. Therefore, the vacuum heat insulating material 400 is bonded, fixed, or fixed to the inner box 750 or the outer box 710 by the first and second interposed members.

ここで、内箱７５０の背面形状は、冷蔵庫１の前面側（貯蔵室側）から見た場合、上下にわたって略中央部が凹んだ凹溝状の凹部４４０（第１の凹部ともいう）をなしており、この略中央部に形成された凹部４４０においては、真空断熱材４００は、直接、外箱７１０と内箱７５０に接着剤を介して貼り付けられていることになる。また、冷蔵庫１の前面側（貯蔵室側）から見た場合、内箱７５０の背面形状は、幅方向（左右方向）端部側が幅方向（左右方向）略中央部に比べて前面開口部側（貯蔵室側）に突出した凸形状になる。言い換えると、内箱７５０の背面形状は、左右方向の略中央部が左右端部側に比べて外箱側（冷蔵庫の後方側）に凹んだ凹溝状である凹部４４０を有し、この凹部４４０が貯蔵室（たとえば冷蔵室２）内において冷蔵庫の上下方向に設けられている。
すなわち、凸部４５０の側面４５２と背面壁７３０とによって凹部４４０が形成されており、背面壁７３０の内面（貯蔵室側）を形成する内箱７５０と背面壁７３０の外面を形成する外箱７１０との間には板状の真空断熱材４００が設けられている。ここで、図示されていないが、側壁７９０の内面（貯蔵室側）を形成する内箱７５０と側壁７９０の外面を形成する外箱７１０との間にも板状の真空断熱材４００が設けられてもよい。背面壁７３０あるいは凹部４４０に設けられる冷気風路７６０は、意匠性を有するカバー部材である第１風路部品７６２と、第１風路部品７６２の背面側（内箱７５０側）に設けられ、断熱性を有する第２風路部品７６４とから構成され、凹部４４０内に配置されている。このカバー部材である第１風路部品７６２あるいは第２風路部品７６４は、取り付け部（係合部）を有しており、凸部４５０あるいは背面壁７３０に設けられている取り付け部（係合部）に嵌め込みあるいはねじ等の固定部材によって取り付け部同士が係合するなどしてカバー部材が凸部４５０あるいは背面壁７３０に取り付けられる。 Here, when viewed from the front side (storage room side) of the refrigerator 1, the back shape of the inner box 750 is formed as a concave groove-shaped concave portion 440 (also referred to as a first concave portion) having a substantially central portion extending vertically. In the recess 440 formed in the substantially central portion, the vacuum heat insulating material 400 is directly attached to the outer box 710 and the inner box 750 via an adhesive. Further, when viewed from the front side (storage room side) of the refrigerator 1, the rear shape of the inner box 750 is such that the width direction (left and right direction) end side is the front opening side compared to the width direction (left and right direction) substantially central portion. It becomes a convex shape protruding to the (storage chamber side). In other words, the back surface shape of the inner box 750 has a concave portion 440 that has a concave groove shape with a substantially central portion in the left-right direction recessed toward the outer box side (rear side of the refrigerator) as compared to the left and right end portions. 440 is provided in the vertical direction of the refrigerator in the storage room (for example, the refrigerator compartment 2).
That is, the concave portion 440 is formed by the side surface 452 of the convex portion 450 and the rear wall 730, and the inner box 750 that forms the inner surface (storage chamber side) of the rear wall 730 and the outer box 710 that forms the outer surface of the rear wall 730. Between the two, a plate-like vacuum heat insulating material 400 is provided. Here, although not shown, a plate-like vacuum heat insulating material 400 is also provided between the inner box 750 that forms the inner surface (the storage chamber side) of the side wall 790 and the outer box 710 that forms the outer surface of the side wall 790. May be. The cold air passage 760 provided in the back wall 730 or the recess 440 is provided on the first air passage component 762 that is a cover member having design properties, and on the back side (inner box 750 side) of the first air passage component 762, The second air passage component 764 having heat insulation properties is disposed in the recess 440. The first air path component 762 or the second air path component 764 which is the cover member has an attachment portion (engagement portion), and the attachment portion (engagement) provided on the convex portion 450 or the back wall 730. The cover member is attached to the convex portion 450 or the back wall 730 by fitting into the portion) or engaging the attachment portions with a fixing member such as a screw.

この貯蔵室内背面の左右端部側に形成される凸部４５０において、幅方向の中央側（重なり長さＸの範囲）は、外箱７１０と内箱７５０との間に真空断熱材４００が配設され真空断熱材４００と内箱７５０の間は第１の介在部材である接着剤（自己接着性の発泡断熱材７０１であり、たとえば硬質ウレタン）が充填されており、また、外箱７１０と真空断熱材４００の間は、第２の介在部材である第２の接着剤で接着されている。凸部４５０における幅方向の端部側は、外箱７１０と内箱７５０との間に断熱材７０１（たとえば硬質ウレタン）が充填され、真空断熱材４００が設けられていない部分が存在している。もちろん、凸部４５０において、真空断熱材４００を幅方向に大きくして幅方向の真空断熱材４００の配置面積を大きくした方が断熱性能及び箱体強度が向上して良いが、コストＵＰになるため断熱性能と強度が所定値以上であれば真空断熱材４００を設けない部分を設定しても良い。   In the convex portion 450 formed on the left and right end sides of the rear surface of the storage chamber, the vacuum heat insulating material 400 is disposed between the outer box 710 and the inner box 750 on the center side in the width direction (the range of the overlap length X). The space between the vacuum heat insulating material 400 and the inner box 750 is filled with an adhesive (self-adhesive foam heat insulating material 701, for example, hard urethane) as a first interposed member. Between the vacuum heat insulating materials 400, it adhere | attaches with the 2nd adhesive agent which is a 2nd interposition member. On the end side in the width direction of the convex portion 450, there is a portion where the heat insulating material 701 (for example, hard urethane) is filled between the outer box 710 and the inner box 750 and the vacuum heat insulating material 400 is not provided. . Of course, in the convex portion 450, the heat insulation performance and the box strength may be improved by enlarging the vacuum heat insulating material 400 in the width direction and increasing the arrangement area of the vacuum heat insulating material 400 in the width direction, but the cost increases. Therefore, if the heat insulation performance and strength are equal to or higher than the predetermined values, a portion where the vacuum heat insulating material 400 is not provided may be set.

ここで、凹部４４０では、真空断熱材４００は、外箱７１０とは直接、第２の介在部材である第２の接着剤を介して貼り付けられ、内箱７５０とは、第１の介在部材であるウレタン等の自己接着性及び発泡性を有する接着剤を介して貼り付けられている。（真空断熱材４００と内箱７５０との間には、たとえば接着剤としての硬質ウレタンフォームが充填されている。）   Here, in the recess 440, the vacuum heat insulating material 400 is directly attached to the outer box 710 via a second adhesive which is a second interposed member, and the inner box 750 is the first interposed member. It is pasted via an adhesive having self-adhesive properties and foaming properties such as urethane. (For example, a hard urethane foam as an adhesive is filled between the vacuum heat insulating material 400 and the inner box 750.)

したがって、真空断熱材を備えた断熱箱体や冷蔵庫において、従来（たとえば特許文献２）のように貯蔵室背面の幅方向において、真空断熱材の配設部分にウレタン等断熱を主目的とする断熱材７０１を設けずに内箱７５０に、直接、真空断熱材４００を設ける場合に比べて、本実施の形態においては、左右端部側（幅方向端部側）において上下方向にわたってウレタンなどの断熱材７０１で構成された凸部４５０が形成されるので、この凸部４５０が形成されることによって箱体のねじれ強度、折り曲げ強度が改善される。特許文献２に示される構成では、貯蔵室背面の幅方向において、凸部４５０と真空断熱材４００の配設部分との重なり部分が無いので箱体がねじれた場合に、凸部４５０と真空断熱材４００とが分断されて強度低下、箱体破損の恐れが生じる可能性がある。ここで、真空断熱材の耳部（外包材のみの部分）は、芯材を有していないので断熱機能を有さず、また、強度的にも弱いので、真空断熱材の耳部については、真空断熱材の構成部品から除外して考えている。   Therefore, in a heat insulation box or a refrigerator provided with a vacuum heat insulating material, heat insulation mainly for heat insulation such as urethane in a portion where the vacuum heat insulating material is disposed in the width direction of the rear surface of the storage room as in the past (for example, Patent Document 2). Compared with the case where the vacuum heat insulating material 400 is directly provided in the inner box 750 without providing the material 701, in the present embodiment, heat insulation such as urethane is provided in the vertical direction on the left and right end sides (width direction end portions side). Since the convex portion 450 composed of the material 701 is formed, the torsional strength and the bending strength of the box body are improved by forming the convex portion 450. In the configuration shown in Patent Document 2, in the width direction of the rear surface of the storage chamber, since there is no overlapping portion between the convex portion 450 and the portion where the vacuum heat insulating material 400 is disposed, when the box is twisted, the convex portion 450 and the vacuum thermal insulation are provided. There is a possibility that the material 400 is divided and the strength is lowered and the box body may be damaged. Here, the ear part of the vacuum heat insulating material (portion of only the outer packaging material) does not have a heat insulating function because it does not have a core material, and the strength of the ear part of the vacuum heat insulating material is weak. Considered excluded from the components of vacuum insulation.

ここで、本実施の形態で示すように、貯蔵室背面の幅方向において、凸部４５０が真空断熱材４００の配設部分に少なくとも一部重なるように設ければ（重なり長さＸだけ重なるように設ければ）、凸部４５０の内部に充填される硬質ウレタンフォームが真空断熱材４００の幅方向（左右方向）の端部側の真空断熱材４００と内箱７５０の間の一部にも充填されることになるので、凸部４５０と対向する位置の真空断熱材４００と内箱７５０の間に充填される硬質ウレタンフォームの厚さを、凹部４４０と対向する位置の真空断熱材４００と内箱７５０に充填される硬質ウレタンフォームの厚さよりも大きくできるため、真空断熱材４００に対する硬質ウレタンフォームの接着面積を大きくできるとともに、真空断熱材４００部分の硬質ウレタンフォームの厚さを大きくできるため、凸部４５０内の硬質ウレタンフォームと真空断熱材４００との接合強度が増大する。   Here, as shown in the present embodiment, if the convex portion 450 is provided so as to at least partially overlap the arrangement portion of the vacuum heat insulating material 400 in the width direction of the rear surface of the storage chamber (so as to overlap by the overlap length X). The rigid urethane foam filled in the convex portion 450 is also applied to a part between the vacuum heat insulating material 400 and the inner box 750 on the end side in the width direction (left-right direction) of the vacuum heat insulating material 400. Since the thickness of the rigid urethane foam filled between the vacuum heat insulating material 400 at the position facing the convex portion 450 and the inner box 750 is set to the vacuum heat insulating material 400 at the position facing the concave portion 440, Since the thickness of the hard urethane foam filled in the inner box 750 can be increased, the adhesion area of the hard urethane foam to the vacuum heat insulating material 400 can be increased, and the hard urethane of the vacuum heat insulating material 400 portion can be increased. Because it can increase the thickness of the emission form the bonding strength between the rigid urethane foam and vacuum insulation material 400 in the convex portion 450 is increased.

したがって、凹部４４０での真空断熱材４００と内箱７５０との間の硬質ウレタンフォームの厚さを薄くしても、凸部４５０と真空断熱材４００、及び凸部４５０と側壁７９０（あるいは凸部４５０が設けられる周囲壁）との接合強度を大きく向上させることができ、箱体の強度が大きく改善される。また、凸部４５０においては、硬質ウレタンフォームの厚さを大きくできるので、真空断熱材４００が設けられていない部分があったとしても断熱性能が向上する。   Therefore, even if the thickness of the rigid urethane foam between the vacuum heat insulating material 400 and the inner box 750 in the concave portion 440 is reduced, the convex portion 450 and the vacuum heat insulating material 400 and the convex portion 450 and the side wall 790 (or the convex portion). The strength of the box body can be greatly improved. Moreover, in the convex part 450, since the thickness of a hard urethane foam can be enlarged, even if there exists a part in which the vacuum heat insulating material 400 is not provided, heat insulation performance improves.

また、本発明の実施の形態では、従来の特許文献２のように真空断熱材、内箱、外箱を箱体強度確保のために複雑な形状に成形する必要がなく、また、真空断熱材の芯材に安価で断熱性能の良い有機繊維や無機繊維の芯材（綿状芯材や不織布芯材など）が使用可能となるので、低コストで構造が簡単で断熱性能の高い断熱箱体、冷蔵庫、ショーケース、給湯機、真空断熱材を備えた機器等を得ることができる。   Further, in the embodiment of the present invention, it is not necessary to form the vacuum heat insulating material, the inner box, and the outer box into a complicated shape in order to ensure the box strength as in the conventional patent document 2, and the vacuum heat insulating material. Organic and inorganic fiber core materials (such as cotton-like core materials and non-woven core materials) that are inexpensive and have good heat insulation performance can be used for the core material, so that the heat insulation box body has a simple structure and high heat insulation performance. , Refrigerators, showcases, water heaters, devices equipped with vacuum heat insulating materials, and the like can be obtained.

したがって、たとえば、箱体背面が変形して貯蔵室内に凹凸が形成されたり、また、たとえば、箱体が変形して貯蔵室（例えば冷蔵室２）の前面に設けられた貯蔵室扉（例えば冷蔵室扉７）が傾いたり、また、たとえば観音開き扉の場合に左右の扉（７Ａ、７Ｂ）の一方が傾いて位置ずれを起こしたりすることがなくなるので、貯蔵室扉の開閉がスムーズに行えるし、また、左右の貯蔵室扉の位置ズレが起こらないので見栄え（意匠性）が良い。また、箱体が変形することによって貯蔵室（たとえば製氷室３、切替室４、野菜室５、冷凍室６等）内壁や左右の側壁に設けられた開閉扉や引出式ケース用のレール部材の取り付け高さが左右で異なったり、傾いたりすることがなくなるので、ケースの出し入れがスムーズに行え、信頼性が高く、使い勝手が良い冷蔵庫、機器が得られる。   Therefore, for example, the back of the box is deformed to form irregularities in the storage chamber, or the storage box door (for example, refrigeration) provided on the front of the storage chamber (for example, the refrigeration chamber 2) is deformed, for example. For example, in the case of a double door, the chamber door 7) is not tilted, and one of the left and right doors (7A, 7B) is not tilted to cause misalignment, so that the storage chamber door can be opened and closed smoothly. Moreover, since the positional shift of the right and left storage chamber doors does not occur, the appearance (designability) is good. In addition, when the box is deformed, the opening and closing doors provided on the inner wall of the storage room (for example, the ice making room 3, the switching room 4, the vegetable room 5, the freezing room 6 and the like) and the left and right side walls and the rail member for the drawer case are provided. Since the installation height does not differ from side to side and does not tilt, the case can be inserted and removed smoothly, and a highly reliable and easy-to-use refrigerator and equipment can be obtained.

また、真空断熱材４００が平板状である場合には、真空断熱材４００を冷蔵庫１の背面に搭載した状態では、左右方向（幅方向）や前後方向に折り曲がりやすく、また、ねじれやすいが、この点に関しても冷蔵庫などの機器に搭載された状態では、背面の左右端部側において上下方向にウレタンなどの断熱材が設けられた凸部４５０を形成して真空断熱材４００を凸部４５０内に充填されるウレタンと一体に形成すれば、内箱７５０、真空断熱材４００、外箱７１０が凸部４５０によって一体に接着されるので、箱体７００の折り曲げ強度（特に前後方向への折り曲げ強度）やねじれ強度が改善できる。したがって、前面が開口している貯蔵室の開口部がたわんで変形したり、開口部のシール部材の位置ずれなどにより冷気漏れを起こしたりすることを抑制できるので、信頼性が高く、高性能で省エネルギーな断熱箱体、冷蔵庫、真空断熱材を備えた機器が得られる。   Moreover, when the vacuum heat insulating material 400 is flat, in the state where the vacuum heat insulating material 400 is mounted on the back of the refrigerator 1, it is easy to bend in the left-right direction (width direction) and the front-rear direction, and to be twisted easily. Also in this state, when mounted on a device such as a refrigerator, a convex portion 450 provided with a heat insulating material such as urethane is formed in the vertical direction on the left and right end portions of the back surface, and the vacuum heat insulating material 400 is placed inside the convex portion 450. Since the inner box 750, the vacuum heat insulating material 400, and the outer box 710 are integrally bonded by the convex portion 450, the bending strength of the box 700 (particularly the bending strength in the front-rear direction) is formed. ) And torsional strength can be improved. Therefore, it is possible to prevent the opening of the storage chamber having the front surface from being bent and deforming, or to cause a cold air leak due to a displacement of the seal member of the opening, etc. Equipment with energy-saving heat insulation box, refrigerator, and vacuum heat insulating material can be obtained.

また、内箱７５０と真空断熱材４００との間には、断熱を主目的とするウレタンなどの発泡断熱材を設ける部位（凸部４５０）と断熱を主目的としない接着剤（たとえば断熱を主目的とせず接着を主目的とするので自己接着性を有すれば良くウレタンなどであっても良い）が設けられる部位（凹部４４０）を有しているので、接着を主目的とする接着剤が設けられる部位（凹部４４０）は、断熱を主目的としたウレタンなど断熱材が設けられた部位に比べて、断熱性能を得るための断熱材としての所定厚さが必要なく、所定の接着強度を有していれば良いので、接着を主目的として使用される部位（たとえば凹部４４０）は、接着剤の厚さをかなり小さくしても良くて済むため、接着剤として硬質ウレタンを使用した場合、断熱を主目的として使用される部位に対してウレタンの厚さをかなり小さくできる。しかたがって、接着剤の厚さの差分だけ壁厚さを小さくでき、したがって貯蔵室の内容積を大きくすることが可能となり、使い勝手の良い冷蔵庫、機器が得られる。   Further, between the inner box 750 and the vacuum heat insulating material 400, a portion (protrusion 450) provided with a foam heat insulating material such as urethane mainly for heat insulation and an adhesive not mainly intended for heat insulation (for example, heat insulation is mainly used). Since it has a part (recess 440) provided with a self-adhesive property and may be urethane or the like, since the main purpose is adhesion without aiming, the adhesive mainly intended for adhesion is The provided part (concave part 440) does not need a predetermined thickness as a heat insulating material for obtaining heat insulating performance, compared with a part provided with a heat insulating material such as urethane mainly for heat insulation, and has a predetermined adhesive strength. Since it is sufficient that the portion used for the main purpose of bonding (for example, the concave portion 440) may have a considerably small thickness of the adhesive, when the hard urethane is used as the adhesive, Mainly for heat insulation It can significantly reduce the thickness of the urethane against sites used. Accordingly, the wall thickness can be reduced by the difference in the thickness of the adhesive, and thus the internal volume of the storage chamber can be increased, and a convenient refrigerator and equipment can be obtained.

ここで、制御配線や圧縮機やファンなどの駆動用電力線等のリード線が収納されるリード線収納部材であるパイプ７２０は凸部４５０を形成するウレタン等の断熱材７０１内に上下方向に渡って埋設されて設けられている。このパイプ７２０内に各種ダンパの開閉制御や圧縮機１２や冷気循環用ファン１４などの運転制御などを行うための制御配線や圧縮機１２や冷気循環用ファン１４などに電力を供給するための電力線等のリード線が収納される。制御配線や電力線等のリード線は、パイプ７２０内を通って、冷蔵庫１の下部（あるいは上部）に設けられる機械室１Ａ内に配置された圧縮機１２や、冷蔵庫１の背面や底面や上面に設けられる制御装置（制御基板など）３０や、冷却器室１３１などに設けられる冷気循環用ファン１４や、冷気風路に設けられる切替室ダンパ１５、冷蔵室ダンパ５５や、貯蔵室（例えば冷蔵室２）の前面を覆うように設けられた開閉扉（例えば冷蔵室扉７）に設けられた操作パネル６０などと接続されている。   Here, the pipe 720 which is a lead wire housing member in which a lead wire such as a driving power line such as a control wiring or a compressor or a fan is housed extends in a vertical direction in a heat insulating material 701 such as urethane forming the convex portion 450. It is embedded and provided. Control wiring for performing opening / closing control of various dampers in the pipe 720, operation control of the compressor 12, the cool air circulation fan 14 and the like, and a power line for supplying power to the compressor 12, the cool air circulation fan 14, and the like Etc. are accommodated. Lead wires such as control wires and power lines pass through the pipe 720 to the compressor 12 disposed in the machine room 1A provided in the lower part (or upper part) of the refrigerator 1, and to the back, bottom and top surfaces of the refrigerator 1. A control device (control board or the like) 30 provided, a cool air circulation fan 14 provided in the cooler room 131, a switching room damper 15 provided in the cold air passage, a cold room damper 55, a storage room (for example, a cold room) 2) is connected to an operation panel 60 provided on an open / close door (for example, the refrigerator compartment door 7) provided so as to cover the front surface.

冷蔵庫１の背面に設けられる真空断熱材４００の左右方向の幅は、冷蔵庫１の側壁７９０の貯蔵室内面壁７９１、７９２間の幅よりも小さくしており、冷蔵庫１の背面の左右方向の端部に複数設けられるウレタンなどの断熱材の充填口（注入口）７０３、７０４を塞ぐことがないようにしており、充填口７０３、７０４より充填されるウレタンなどの断熱材の充填流路を塞ぐことがないようにしている。   The width in the left-right direction of the vacuum heat insulating material 400 provided on the back surface of the refrigerator 1 is smaller than the width between the storage chamber inner wall surfaces 791, 792 of the side wall 790 of the refrigerator 1. The filling ports (injection ports) 703 and 704 of a heat insulating material such as urethane provided in a plurality are not blocked, and the filling flow path of the heat insulating material such as urethane filled from the filling ports 703 and 704 is blocked. There is no such thing.

ここで、冷蔵庫１の背面に設けられる真空断熱材４００の左右方向の幅は、冷蔵庫１の側壁７９０の貯蔵室内面壁間（貯蔵室内面壁左７９１と貯蔵室内面壁右７９２との間）の幅（距離）と同等かそれよりも小さくした方がウレタンなどの断熱材の充填口あるいは充填流路を塞ぐことがないのでウレタン断熱材が途切れることなく充填されるため断熱性能の低下などが発生しないので良いが、真空断熱材４００が冷蔵庫１の背面側の左右端部に設けられるウレタンなどの断熱材の充填口７０３、７０４の配設位置と同等か充填口７０３、７０４よりも中心側（内側方向）に配置されていれば、ウレタン断熱材の充填口７０３、７０４が真空断熱材４００によって塞がれることがないので、充填口７０３、７０４より充填されるウレタンなどの断熱材が側壁７９０内、あるいは凸部４５０内、あるいは真空断熱材４００と内箱７５０との間などを流れる（充填される）のを邪魔せず、ウレタン充填不良などが発生せず断熱性能も低下しない。   Here, the width in the left-right direction of the vacuum heat insulating material 400 provided on the rear surface of the refrigerator 1 is the width between the storage chamber inner walls of the side wall 790 of the refrigerator 1 (between the storage chamber inner wall left 791 and the storage chamber inner wall right 792). If the distance is equal to or smaller than (distance), it will not block the filling port or flow path of the heat insulating material such as urethane, so the urethane heat insulating material will be filled without interruption, so there will be no decrease in heat insulation performance. Although it is good, the vacuum heat insulating material 400 is equivalent to the arrangement position of the filling ports 703 and 704 of the heat insulating material such as urethane provided at the left and right end portions on the back side of the refrigerator 1 or the center side of the filling ports 703 and 704 (inward direction) ), The filling ports 703 and 704 of the urethane heat insulating material are not blocked by the vacuum heat insulating material 400, so that urethane filled from the filling ports 703 and 704 can be used. It does not obstruct that the heat material flows (fills) in the side wall 790, the convex portion 450, or between the vacuum heat insulating material 400 and the inner box 750, and does not cause poor urethane filling, etc. It will not decline.

ここで真空断熱材４００が冷蔵庫１の側壁７９０の内面壁よりも幅方向外側に突出したりしてウレタン断熱材の充填口７０３、７０４の少なくとも一部を塞ぐと、ウレタンなどの断熱材の充填口７０３、７０４より充填されるウレタンが真空断熱材４００によって側壁７９０内、あるいは凸部４５０内、あるいは真空断熱材４００と内箱７５０との間などを流れるのを阻害したり邪魔したりする恐れがあり、側壁などにウレタンなどの断熱材の充填不良が発生して断熱性能が低下する可能性がある。   Here, when the vacuum heat insulating material 400 protrudes outward in the width direction from the inner wall of the side wall 790 of the refrigerator 1 and closes at least a part of the filling ports 703 and 704 of the urethane heat insulating material, the filling port of the heat insulating material such as urethane There is a risk that urethane filled from 703 and 704 may obstruct or obstruct the flow of the vacuum heat insulating material 400 in the side wall 790, the convex portion 450, or between the vacuum heat insulating material 400 and the inner box 750. In addition, there is a possibility that the side wall or the like is poorly filled with a heat insulating material such as urethane and the heat insulating performance is lowered.

したがって、真空断熱材４００は冷蔵庫１の背面側の左右端部に設けられるウレタンなどの断熱材の充填口７０３、７０４よりも外側にはみ出さない程度に左右に配置される左側（一方）の充填口７０３と右側（他方）の充填口７０４の内側の範囲内に配置することで充填口７０３、７０４より充填されるウレタンなどの断熱材が断熱箱体内（内箱７５０と外箱７１０の間、たとえば側壁７９０内、凸部４５０内、真空断熱材４００と内箱７５０との間、真空断熱材４００と外箱７１０との間など）に充填されるのを阻害したり邪魔したりしないので、断熱性能が低下しない高性能な断熱箱体や冷蔵庫が得られる。   Therefore, the vacuum heat insulating material 400 is filled on the left side (one side) so as not to protrude outward from the filling ports 703 and 704 of a heat insulating material such as urethane provided at the left and right end portions on the back side of the refrigerator 1. Insulating material such as urethane filled from the filling ports 703 and 704 is disposed within the range inside the port 703 and the right side (the other side) filling port 704, so that the heat insulating material inside the heat insulation box (between the inner box 750 and the outer box 710, For example, it does not hinder or disturb the filling into the side wall 790, the convex portion 450, between the vacuum heat insulating material 400 and the inner box 750, between the vacuum heat insulating material 400 and the outer box 710, etc. A high-performance heat insulation box or refrigerator in which the heat insulation performance does not deteriorate is obtained.

ここで、真空断熱材４００の幅が冷蔵庫１の背面側の左右端部に設けられるウレタンなどの断熱材の充填口７０３、７０４よりも外側にはみ出す（真空断熱材４００の幅方向端部位置が冷蔵庫１の背面側の左右端部に設けられるウレタンなどの充填口７０３、７０４の配置位置よりも外側位置まで配置される）場合には、充填口７０３、７０４が真空断熱材４００で塞がれる可能性があるので、真空断熱材４００が充填口７０３、７０４の少なくとも一部を塞がないように真空断熱材４００において充填口７０３、７０４と対向する部分に切欠きや開口などの切欠き部３３を設けるようにすれば良い。このようにすれば真空断熱材４００の幅を大きくすることが可能になるので、真空断熱材４００の配設面積を大きくでき、断熱箱体あるいは断熱箱体の背面壁の外表面積に対する真空断熱材の配置面積の比率（被覆率）を大きくすることができる。したがって、断熱性能を向上させることが可能となる。（たとえば図１２、図２２参照）   Here, the width of the vacuum heat insulating material 400 protrudes outside the filling ports 703 and 704 of heat insulating material such as urethane provided at the left and right end portions on the back side of the refrigerator 1 (the end position in the width direction of the vacuum heat insulating material 400 is In the case where the filling ports 703 and 704 such as urethane provided at the left and right end portions on the rear side of the refrigerator 1 are disposed outside the placement position), the filling ports 703 and 704 are closed with the vacuum heat insulating material 400. There is a possibility, so that the vacuum heat insulating material 400 does not block at least a part of the filling ports 703 and 704, and a notch portion such as a notch or an opening is formed in the portion of the vacuum heat insulating material 400 facing the filling ports 703 and 704. 33 may be provided. In this way, the width of the vacuum heat insulating material 400 can be increased, so that the arrangement area of the vacuum heat insulating material 400 can be increased, and the vacuum heat insulating material with respect to the outer surface area of the heat insulating box or the back wall of the heat insulating box. The ratio (coverage ratio) of the arrangement area can be increased. Therefore, the heat insulation performance can be improved. (For example, see FIGS. 12 and 22)

本実施の形態では、凸部を形成する内箱７５０と外箱７１０との間（あるいは内箱７５０と真空断熱材４００との間）にウレタン等の断熱材７０１を充填したり別部品（ウレタン以外の断熱材）の断熱材を配置したりして断熱箱体７００の強度を向上させるようにしているが、断熱箱体７００の強度を更に向上させたい場合は、凸部４５０内（たとえば真空断熱材４００と内箱７５０の間、真空断熱材４００の幅方向端部近傍など）、あるいは凸部４５０近傍であってたとえば凸部４５０の外部（たとえば内箱７５０の内側や内箱７５０の外側）に補強部材を設けても良い。   In this embodiment, a heat insulating material 701 such as urethane is filled between the inner box 750 and the outer box 710 forming the convex portion (or between the inner box 750 and the vacuum heat insulating material 400) or another part (urethane) The heat insulating material other than the heat insulating material is arranged to improve the strength of the heat insulating box 700. However, when the strength of the heat insulating box 700 is to be further improved, the inside of the convex portion 450 (for example, vacuum) Between the heat insulating material 400 and the inner box 750, near the end in the width direction of the vacuum heat insulating material 400, or near the convex portion 450, for example, outside the convex portion 450 (for example, inside the inner box 750 or outside the inner box 750). ) May be provided with a reinforcing member.

この補強部材は、たとえば金属製等に比べて熱伝導率の悪い部材（たとえば樹脂製の樹脂部材など）が断熱性能の低下に与える影響が小さくなるので良いが、補強部材の周囲を断熱材で覆うようにすれば金属製（アルミ製やアルミ合金製など）の部材であっても断熱性能を損なうことを抑制できるので良く、形状は棒状（丸棒や角棒など）やパイプ状であっても良い。また、内箱７５０にリブなどを設ける構成であってもよく、断熱箱体７００のねじれ強度や折り曲げ強度など箱体強度を向上できるものであれば良い。ここで、制御配線や電力線等のリード線が収納されるパイプ７２０や冷媒配管７２５を補強部材として代用することも可能であり、パイプ７２０や冷媒配管７２５を補強部材として代用すれば、別途補強のための部品が不要となるので低コストであり、しかも断熱箱体の補強が行えるので断熱箱体の箱体強度が向上できる。また、補強部材を凸部４５０内や内箱７５０と外箱７１０との間の空間に配置することが可能であり、補強部材が直接ユーザに見えないため意匠性も向上する。したがって、低コストで信頼性が高く意匠性の優れた断熱箱体、冷蔵庫、機器が得られる。   The reinforcing member may be less affected by a member having poor thermal conductivity (for example, a resin member made of resin) than that made of, for example, a metal. If it is covered, it can be suppressed even if it is a metal (aluminum, aluminum alloy, etc.) member, and it will be possible to suppress the heat insulation performance, and the shape is a rod shape (round bar, square bar, etc.) or a pipe shape. Also good. Moreover, the structure which provides a rib etc. in the inner box 750 may be sufficient, and what can improve box strength, such as the twist strength of the heat insulation box 700, and bending strength, is sufficient. Here, it is also possible to substitute the pipe 720 and the refrigerant pipe 725 in which the lead wires such as the control wiring and the power line are accommodated as a reinforcing member, and if the pipe 720 and the refrigerant pipe 725 are used as a reinforcing member, the reinforcement is separately performed. This eliminates the need for parts to reduce the cost, and can reinforce the heat insulating box, thereby improving the box strength of the heat insulating box. In addition, the reinforcing member can be disposed in the convex portion 450 or in the space between the inner box 750 and the outer box 710, and the design is improved because the reinforcing member is not directly visible to the user. Therefore, it is possible to obtain a heat insulating box, a refrigerator, and a device that are low in cost, highly reliable, and excellent in design.

（凹部を冷気風路として利用（その１））
内箱７５０と真空断熱材４００とが接着剤（自己接着性の発泡断熱材でも良い）を介して直接貼り付けられている部分である凹部４４０は、凹部４４０の周囲に形成されている周囲壁（たとえば側壁７９０あるいは天井壁７４０あるいは仕切壁２４）とのコーナー部に設けられる凸部４５０に対して凹んでいるため、この凹み部を冷気風路７６０として使用しても良い。（ここで、たとえば、貯蔵室が冷蔵室２である場合には、冷気風路７６０は冷蔵室冷気風路５０に相当し、貯蔵室が切替室４である場合には、冷気風路７６０は切替室冷気風路１６に相当し、貯蔵室が野菜室５である場合には、冷気風路７６０は野菜室冷気風路に相当する。） (Using the recess as a cold air passage (part 1))
The concave portion 440, which is a portion where the inner box 750 and the vacuum heat insulating material 400 are directly attached via an adhesive (may be a self-adhesive foam heat insulating material), is a peripheral wall formed around the concave portion 440. Since it is recessed with respect to the convex portion 450 provided at the corner portion (for example, the side wall 790, the ceiling wall 740, or the partition wall 24), this concave portion may be used as the cold air passage 760. (For example, when the storage room is the refrigerator compartment 2, the cold air passage 760 corresponds to the refrigerator compartment cold air passage 50, and when the storage compartment is the switching room 4, the cold air passage 760 is (When the storage room is the vegetable room 5, the cold air path 760 corresponds to the vegetable room cold air path).

凹部４４０を冷気風路７６０として使用する場合は、Ｕ字状（あるいは凹形状）の開口部を有する第２風路部品７６４の開口部が貯蔵室側に開口するように配置し、風路カバーである第１風路部品７６２を第２風路部品７６４のＵ字状の開口部を覆うように配置して第２風路部品７６４の開口部を第１風路部品７６２で塞ぐことで略密閉空間の冷気風路７６０を形成することができる。第１風路部品７６２、第２風路部品７６４とも、たとえば発泡スチロールや樹脂などの断熱部材で構成されるが、凹部４４０に配置される第２風路部品７６４は、背面側の風路背面部材７６５、側面側の風路側面部材７６６から構成される。   When the concave portion 440 is used as the cold air passage 760, the opening portion of the second air passage component 764 having a U-shaped (or concave shape) opening portion is disposed so as to open to the storage chamber side, and the air passage cover The first air path component 762 is arranged so as to cover the U-shaped opening of the second air path component 764 and the opening of the second air path component 764 is closed by the first air path component 762. A cold air passage 760 in a sealed space can be formed. Both the first air path component 762 and the second air path component 764 are made of a heat insulating member such as polystyrene foam or resin, but the second air path component 764 disposed in the concave portion 440 is an air path rear surface member on the back side. 765, a side surface side air passage side member 766.

第２風路部品７６４の背面側の部材（風路背面部材７６５）の背面側には凹部４４０を形成する内箱７５０が配置されている。真空断熱材４００は、背面壁７３０を形成する内箱７５０と接着剤を介して設けられており、また、第２風路部品７６４の側面側の部材（風路側面部材７６６）の側面側には内箱７５０により形成される凸部４５０が設けられており、凸部４５０内にはウレタンなどの断熱材７０１が設けられている。したがって、第２風路部品７６４を構成する風路背面部材７６５、風路側面部材７６６は、断熱性を有さなくても断熱性能を確保できる。すなわち、冷気風路７６０の背面側は背面壁７３０内に配置される真空断熱材４００にて断熱性能が確保され、冷気風路７６０の側面側は凸部４５０内の断熱材７０１によって断熱性能を確保されるので、第２風路部品７６４を構成する風路背面部材７６５、風路側面部材７６６は、発泡スチロールなどの断熱材であっても良いが断熱性能を有さない樹脂製や金属製などの部材であっても冷気風路７６０の断熱性能は確保できる。よって、第２風路部品７６４を構成する部材は、断熱性を有する発泡スチロールなどの断熱材であっても良いが、断熱性を有さない樹脂製や金属製などの部材であっても冷気風路７６０を形成する部品等への露などの付着、あるいは露の発生による露付きを抑制できる。   An inner box 750 that forms a recess 440 is disposed on the back side of the member on the back side of the second air path component 764 (the air path back member 765). The vacuum heat insulating material 400 is provided via an inner box 750 that forms the back wall 730 and an adhesive, and on the side surface side of the member on the side surface of the second air path component 764 (air path side surface member 766). A convex portion 450 formed by the inner box 750 is provided, and a heat insulating material 701 such as urethane is provided in the convex portion 450. Therefore, the air path back surface member 765 and the air path side surface member 766 constituting the second air path component 764 can ensure heat insulating performance even if they do not have heat insulating properties. In other words, the heat insulation performance is ensured on the back side of the cold air passage 760 by the vacuum heat insulating material 400 disposed in the back wall 730, and the heat insulation performance is secured on the side surface side of the cold air passage 760 by the heat insulation material 701 in the projection 450. Since the air path back surface member 765 and the air path side surface member 766 constituting the second air path component 764 may be heat insulating materials such as polystyrene foam, they are made of resin or metal that does not have heat insulating performance. Even if it is this member, the heat insulation performance of the cold air path 760 can be ensured. Therefore, the member constituting the second air passage component 764 may be a heat insulating material such as a polystyrene foam having heat insulation properties, but even if it is a member made of resin or metal that does not have heat insulation properties, Adhesion of dew or the like to parts or the like forming the path 760 or dew generation due to dew generation can be suppressed.

また、第１風路部品７６２は、たとえば、発泡スチロールなどの断熱性を有する断熱部材あるいは樹脂などで構成されており、貯蔵室側に露などが付着、あるいは発生しないように露付きを抑制している。図では、第１風路部品７６２は、凹部４４０の左右方向の幅、あるいは第２風路部品７６４のＵ字状の開口部の左右方向の幅よりも大きな幅を有した突出部（延出部）７６３が設けられており、この突出部（延出部）７６３にて第２風路部品７６４の開口部あるいは凹部４４０を略密閉状態で塞いで冷気風路７６０を形成するとともに、突出部（延出部）７６３を利用して第１風路部品７６２を凸部４５０、あるいは第２風路部品７６４に着脱可能に固定することができる。ここで、第１風路部品７６２は第２風路部品７６４の開口部を塞いで冷気風路を確保できれば良いので、第２風路部品の開口部だけ塞ぐことができれば良く、凹部４４０までも塞ぐ必要は無いが、凹部４４０の開口部を塞ぐようにすれば、第１風路部品７６２の取り付け製が向上し、また、意匠性も向上する。   The first air passage component 762 is made of, for example, a heat insulating member having heat insulating properties such as foamed polystyrene or a resin, and suppresses the dew so that dew does not adhere to or occurs on the storage chamber side. Yes. In the figure, the first air passage component 762 has a protruding portion (extension) having a width greater than the width in the left-right direction of the recess 440 or the width in the left-right direction of the U-shaped opening of the second air passage component 764. Part) 763 is provided, and the protrusion (extension part) 763 closes the opening or recess 440 of the second air passage component 764 in a substantially sealed state to form a cold air passage 760, and the protrusion Using the (extension part) 763, the first air path component 762 can be detachably fixed to the convex portion 450 or the second air path component 764. Here, the first air passage component 762 only needs to close the opening of the second air passage component 764 to secure the cold air passage, so that only the opening of the second air passage component can be closed, and the recess 440 is also included. Although it is not necessary to close, if the opening part of the recessed part 440 is closed, the attachment manufacture of the 1st air path component 762 will improve, and the design property will also improve.

ここで、冷気風路７６０を形成する冷気風路部品（たとえば第１風路部品７６２あるいは第２風路部品７６４等）は、箱体の強度向上のための補強部材としても使用可能である。箱体強度あるいは箱体剛性（たとえばねじり強度、あるいは折り曲げ強度など）が弱いと考えられる場合には、第１風路部品７６２あるいは第２風路部品７６４を補強部材として使用して箱体強度（箱体剛性）を大きくすればよい。第１風路部品あるいは第２風路部品７６４が樹脂製の場合には箱体強度が得られる程度の所定厚さを有するようにすれば良いが、厚さを薄くしたければ、樹脂製でなく熱伝導率の小さい金属製（たとえば銅やアルミなどよりは熱伝導率の小さく断熱性能の良い金属が良い）にしても良い。また、第１風路部品７６２あるいは第２風路部品７６４に幅方向あるいは上下方向にリブを設けるなどしてねじれ強度や曲げ強度を向上させれば良い。断熱箱体７００の強度あるいは剛性が問題とならない場合には、第２風路部品７６４を省略して凹部４４０を直接、冷気風路７６０の背面壁、側面壁として使用し、凹部４４０の開口部を覆うように第１風路部品７６２を設けるようにすることも可能である。   Here, the cold air path component (for example, the first air path component 762 or the second air path component 764) forming the cold air path 760 can be used as a reinforcing member for improving the strength of the box. When it is considered that the box strength or the box rigidity (for example, the torsion strength or the bending strength) is weak, the first wind path component 762 or the second wind path component 764 is used as a reinforcing member to strengthen the box strength ( The box rigidity may be increased. When the first air path component or the second air path component 764 is made of resin, it may be made to have a predetermined thickness so that the box strength can be obtained. Alternatively, it may be made of a metal having a low thermal conductivity (for example, a metal having a low thermal conductivity and good heat insulating performance is better than copper or aluminum). Further, the torsional strength and the bending strength may be improved by providing ribs in the width direction or the vertical direction in the first airway component 762 or the second airway component 764. If the strength or rigidity of the heat insulating box 700 is not a problem, the second air passage component 764 is omitted, and the recess 440 is directly used as the back wall and side wall of the cold air passage 760, and the opening of the recess 440 It is also possible to provide the first air path component 762 so as to cover the air.

凹部４４０を直接、冷気風路７６０の背面壁、側面壁として使用する場合には、第２風路部品７６４を設ける必要がなくなるので、構造が簡単で低コストの断熱箱体７００、冷蔵庫１が得られる。この場合には、凹部４４０を覆うように第１風路部品７６２を設け、凸部４５０に第１風路部品７６２の突出部（延出部）７６３を着脱可能に固定すれば良く、突出部（延出部）７６３を凸部４５０に直接固定することで箱体の強度も向上する。第１風路部品７６２を凹部４４０を覆うカバーとして使用することで凹部４４０が冷気風路７６０として利用できる。ここで、第１風路部品７６２の板厚を厚くしたり、あるいはリブを設けるなどして剛性を大きくして補強部材として使用しても良く、断熱箱体強度を向上させることができる。   When the concave portion 440 is directly used as the back wall or the side wall of the cold air channel 760, the second air channel component 764 is not required, so that the heat insulating box 700 and the refrigerator 1 having a simple structure and low cost can be obtained. can get. In this case, the first air path component 762 is provided so as to cover the concave portion 440, and the protruding portion (extending portion) 763 of the first air path component 762 may be detachably fixed to the convex portion 450. By directly fixing the (extension part) 763 to the convex part 450, the strength of the box is also improved. By using the first air path component 762 as a cover that covers the recess 440, the recess 440 can be used as the cold air path 760. Here, the first air passage component 762 may be used as a reinforcing member with increased rigidity by increasing the plate thickness or by providing a rib, and the heat insulation box strength can be improved.

冷気風路７６０には、貯蔵室（例えば冷蔵室２や野菜室５等）内に冷気を供給するための冷気供給口（冷気吹出口）７６８が１つあるいは複数個設けられている。冷気供給口（冷気吹出口）７６８は、第１風路部品７６２、あるいは第２風路部品７６４に１個あるいは複数個（少なくとも１個）設けられており、貯蔵室内を効率よく冷却できるように配置されている。冷気供給口７６８は、貯蔵室内の側方へ吹出す側方吹出口、あるいは前方へ吹出す前方吹出口、あるいは側方と前方の斜め方向へ吹出し可能な側前方斜め吹出口、あるいは上方と前方の斜め方向へ吹出し可能な上前方斜め吹出口、あるいは下方と前方の斜め方向へ吹出し可能な下前方斜め吹出口、あるいは側方と上方の斜め方向へ吹出し可能な側方上斜め吹出口、あるいは側方と下方の斜め方向へ吹出し可能な側方下斜め吹出口が設けられている。   The cold air passage 760 is provided with one or a plurality of cold air supply ports (cold air outlets) 768 for supplying cold air into the storage chamber (for example, the refrigerator compartment 2 and the vegetable compartment 5). One or a plurality (at least one) of the cold air supply port (cold air outlet) 768 is provided in the first air channel component 762 or the second air channel component 764 so that the storage chamber can be efficiently cooled. Has been placed. The cold air supply port 768 is a side air outlet that blows out sideways in the storage chamber, a front air outlet that blows out forward, a side front oblique air outlet that can be blown in a diagonal direction between the side and the front, or an upper side and a front side. The upper front oblique blower outlet that can be blown in an oblique direction, the lower front oblique blower outlet that can be blown in the downward and forward oblique directions, or the side upper oblique blower outlet that can be blown in the lateral and upward oblique directions, or A lateral lower oblique outlet is provided that can blow out laterally and obliquely downward.

本実施の形態では、真空断熱材４００を、断熱箱体７００の背面壁７３０や冷蔵庫１の背面に設ける例について説明しているが、断熱箱体７００の側壁７９０や天面壁７４０や底面壁７８０、あるいは冷蔵庫１の側面や天面や底面に設けても良い。また、貯蔵室の前面開口を覆う貯蔵室扉（例えば冷蔵室扉７や冷凍室扉１１など）に真空断熱材４００を設けても良く、この場合には、さらなる断熱性能の向上が図れる。   In this embodiment, an example in which the vacuum heat insulating material 400 is provided on the back wall 730 of the heat insulating box 700 or the back surface of the refrigerator 1 is described, but the side wall 790, the top wall 740, and the bottom wall 780 of the heat insulating box 700 are described. Alternatively, it may be provided on the side, top or bottom of the refrigerator 1. Moreover, you may provide the vacuum heat insulating material 400 in the storage chamber door (For example, the refrigerator compartment door 7, the freezer compartment door 11, etc.) which covers the front opening of a storage chamber, In this case, the improvement of the heat insulation performance can be aimed at further.

図４においては、冷気風路７６０には側面（前面カバーである第１風路部品７６２の側面）に冷気供給口（冷気吹出口）７６８が設けられている。この冷気供給口７６８は、凸部４５０の前面側の端面４５１に第１風路部品７６２の突出部（延出部）７６３が設けられている。ここで、第２風路部品７６４の風路側面部材７６６に冷気供給口（冷気吹出口）７６８が設けられている場合には、冷気供給口（冷気吹出口）７６８の開口部の大きさの分だけ冷気風路７６０が凸部４５０の前面側の端面４５１よりも冷蔵庫１の前面側に突出するため、カバーである第１風路部品７６２の前面側端面７６９に対して凸部４５０の前面側端面４５１が奥側（後方）に凹んでおり、この奥側に凹んだ凹み部分（突出部（延出部）７６３と側壁７９０との間の空間）７７０が収納スペースとして有効活用できる。   In FIG. 4, the cold air passage 760 is provided with a cold air supply port (cold air outlet) 768 on a side surface (a side surface of the first air passage component 762 which is a front cover). The cold air supply port 768 is provided with a protruding portion (extending portion) 763 of the first air passage component 762 on the end surface 451 on the front surface side of the convex portion 450. Here, when the cold air supply port (cold air outlet) 768 is provided in the air passage side surface member 766 of the second air passage component 764, the size of the opening of the cold air supply port (cold air outlet) 768 is set. Since the cold air path 760 protrudes to the front side of the refrigerator 1 rather than the end face 451 on the front side of the convex part 450, the front side of the convex part 450 with respect to the front side end face 769 of the first air path component 762 that is a cover. The side end face 451 is recessed on the back side (rear side), and a recessed portion (space between the protruding portion (extension portion) 763 and the side wall 790) 770 recessed on the back side can be effectively used as a storage space.

本実施の形態では、カバーである第１風路部品７６２の前面側の端面７６９が凸部４５０の前面側の端面４５１よりも貯蔵室側に突出するように設けられるので、高さに差（段差部７７５）が生じる。この段差部７７５を利用して冷気供給口（冷気吹出口）７６８を設けることができ、また段差部７７５を設けることによって、段差部７７５の側方（冷気供給口７６８の側方）と側壁７９０との間の空間７７０に食品などの貯蔵物を収納する収納スペースを設けることができるので、第１風路部品７６２に延出部７６３を設けることで、段差部７７５を形成でき、この段差部７７５に冷気供給口（冷気吹出口）７６８を設けることで段差部７７５の側方の空間７７０である貯蔵スペースに収納あるいは貯蔵される食品などの貯蔵物を効率よく冷却することができる。   In the present embodiment, since the end surface 769 on the front surface side of the first air passage component 762 that is a cover is provided so as to protrude to the storage chamber side from the end surface 451 on the front surface side of the convex portion 450, the height difference ( A step 775) is generated. The step 775 can be used to provide a cold air supply port (cold air outlet) 768, and by providing the step 775, the side of the step 775 (the side of the cold air supply 768) and the side wall 790. Since a storage space for storing stored items such as food can be provided in the space 770 between the first air passage part 762 and the extension part 763, the step part 775 can be formed. By providing a cold air supply port (cold air outlet) 768 in 775, stored items such as food stored or stored in a storage space which is a space 770 on the side of the stepped portion 775 can be efficiently cooled.

（凹部を冷気風路として利用（その２））
上記は、凹部４４０を冷気風路７６０として使用し、段差部７７５に冷気供給口（冷気吹出口）７６８を設ける例について説明したが、段差を極力小さくして貯蔵室内容積を大きくしても良い。 (Using the recess as a cold air passage (part 2))
In the above description, the example in which the concave portion 440 is used as the cold air passage 760 and the cold air supply port (cold air outlet) 768 is provided in the step portion 775 has been described. However, the volume in the storage chamber may be increased by making the step as small as possible. .

図５は、本発明の実施の形態１を表す別の冷蔵庫の横断面図で、冷蔵庫１の上下方向に対して垂直な面で冷蔵庫をカットしたときの横断面図である。図５において、図１〜図４と同等部分は同一の符号を付して説明は省略する。   FIG. 5 is a cross-sectional view of another refrigerator representing Embodiment 1 of the present invention, and is a cross-sectional view when the refrigerator is cut along a plane perpendicular to the vertical direction of the refrigerator 1. In FIG. 5, the same parts as those in FIGS.

図５において、凹部４４０は図４と同じように冷気風路７６０として利用されている。
すなわち、凸部４５０の側面４５２と背面壁７３０とによって凹部４４０が形成されており、背面壁７３０の内面（貯蔵室側）を形成する内箱７５０と背面壁７３０の外面を形成する外箱７１０との間には板状の真空断熱材４００が設けられている。ここで、図示されていないが、側壁７９０の内面（貯蔵室側）を形成する内箱７５０と側壁７９０の外面を形成する外箱７１０との間にも板状の真空断熱材４００が設けられてもよい。背面壁７３０あるいは凹部４４０に設けられる冷気風路７６０は、意匠性を有するカバー部材である第１風路部品７６２と、第１風路部品７６２の背面側（内箱７５０側）に設けられ、断熱性を有する第２風路部品７６４とから構成され、凹部４４０内に配置されている。このカバー部材である第１風路部品７６２あるいは第２風路部品７６４は、取り付け部（係合部）を有しており、凸部４５０あるいは背面壁７３０に設けられている取り付け部（係合部）に嵌め込みあるいはねじ等の固定部材によって取り付け部同士が係合するなどして凸部４５０あるいは背面壁７３０に取り付けられる。
冷気風路７６０は、凹部４４０内に少なくとも一部あるいは全部が収納される第２風路部品７６４の貯蔵室側開口部あるいは凹部４４０の貯蔵室側開口部を覆うように設けられるカバーである第１風路部品７６２と、凹部４４０あるいは第２風路部品７６４とから構成され、第１風路部品７６２が凸部４５０の前面側の端面４５１、あるいは、第２風路部品７６４の風路側面部材７６６に固定あるいは保持されている。本実施の形態では、第１風路部品７６２の延出部７６３により形成される段差部７７５の大きさが小さいので、第１風路部品７６２の延出部７６３により形成される側面の段差部７７５には冷気供給口７６８が設けることが困難なため、冷気供給口（冷気吹出口）７６８は第１風路部品７６２の前面側にしか設けられていない。しかし第１風路部品７６２の突出部（延出部）７６３の厚さを小さくできるため段差部７７５の大きさが小さくできる。したがって、段差部７７５が小さくなった分だけ貯蔵室内の奥行き方向長さを大きくでき、貯蔵室内の収納容積を大きくできる。 In FIG. 5, the recess 440 is used as a cold air passage 760 in the same manner as in FIG. 4.
That is, the concave portion 440 is formed by the side surface 452 of the convex portion 450 and the rear wall 730, and the inner box 750 that forms the inner surface (storage chamber side) of the rear wall 730 and the outer box 710 that forms the outer surface of the rear wall 730. Between the two, a plate-like vacuum heat insulating material 400 is provided. Here, although not shown, a plate-like vacuum heat insulating material 400 is also provided between the inner box 750 that forms the inner surface (the storage chamber side) of the side wall 790 and the outer box 710 that forms the outer surface of the side wall 790. May be. The cold air passage 760 provided in the back wall 730 or the recess 440 is provided on the first air passage component 762 that is a cover member having design properties, and on the back side (inner box 750 side) of the first air passage component 762, The second air passage component 764 having heat insulation properties is disposed in the recess 440. The first air path component 762 or the second air path component 764 as the cover member has an attachment portion (engagement portion), and the attachment portion (engagement) provided on the convex portion 450 or the back wall 730. The mounting portion is attached to the convex portion 450 or the back wall 730 by fitting into the portion) or engaging the mounting portions with a fixing member such as a screw.
The cold air channel 760 is a cover provided so as to cover the storage chamber side opening of the second air channel component 764 or the storage chamber side opening of the recess 440 that is at least partially or entirely housed in the recess 440. The first air passage component 762 includes a concave portion 440 or a second air passage component 764, and the first air passage component 762 is the end surface 451 on the front surface side of the convex portion 450 or the air passage side surface of the second air passage component 764. The member 766 is fixed or held. In the present embodiment, since the size of the stepped portion 775 formed by the extending portion 763 of the first airway component 762 is small, the stepped portion on the side surface formed by the extending portion 763 of the first airway component 762 Since it is difficult to provide the cold air supply port 768 in 775, the cold air supply port (cold air outlet) 768 is provided only on the front surface side of the first air passage component 762. However, since the thickness of the protruding portion (extending portion) 763 of the first air passage component 762 can be reduced, the size of the stepped portion 775 can be reduced. Accordingly, the length in the depth direction in the storage chamber can be increased by the amount that the stepped portion 775 is reduced, and the storage capacity in the storage chamber can be increased.

ここで、カバーである第１風路部品７６２の形状は、図４、図５に示すように板状でも良いが、貯蔵室側に突出する曲面状（たとえば円弧状あるいはアーチ形状など）であっても良い。第１風路部品７６２が曲面状の方が、冷気供給口７６８の開口方向を貯蔵室内の前面方向だけでなく、曲面部分に設けることで斜め方向にも設けることが可能となり、冷気供給口７６８を設ける位置の自由度が向上するので、貯蔵室内を満遍なく冷却することが可能となる。   Here, the shape of the first air passage component 762 that is a cover may be a plate shape as shown in FIGS. 4 and 5, but is a curved surface shape (for example, an arc shape or an arch shape) protruding toward the storage chamber. May be. When the first air path component 762 has a curved surface, the opening direction of the cold air supply port 768 can be provided not only in the front surface direction in the storage chamber but also in the curved portion, so that the cold air supply port 768 can be provided in an oblique direction. Since the degree of freedom of the position where the storage space is provided is improved, the storage chamber can be evenly cooled.

第２風路部品７６４を凹部４４０に固定あるいは保持した後に第１風路部品７６２を凸部４５０の前面側の端面４５１あるいは第２風路部品７６４に固定あるいは保持しても良いが、第２風路部品７６４を予め第１風路部品７６２に固定、あるいは保持して一体に形成した状態で第１風路部品７６２と第２風路部品７６４との組立体を凹部４４０内に収納あるいは配置し、第１風路部品７６２の突出部（延出部）７６３を凸部４５０（たとえば前面側の端面４５１）に固定あるいは保持するようにしても良い。このようにすれば、第２風路部品７６４が第１風路部品７６２に固定、あるいは保持されて冷気風路７６０を形成した状態で、貯蔵室内の凸部４５０に取り付けることができるので、組立が容易であり、しかも取り外すことも容易である（第１風路部品７６２と第２風路部品７６４とによって冷気風路７６０の組立体を構成することができる）ので、着脱可能に冷気風路７６０の組立体を貯蔵室内（たとえば凸部４５０）に容易に取り付けることができる。   After the second air path component 764 is fixed or held in the recess 440, the first air path component 762 may be fixed or held on the front end face 451 of the convex portion 450 or the second air path component 764. The assembly of the first air passage component 762 and the second air passage component 764 is stored or disposed in the recess 440 in a state in which the air passage component 764 is fixed to or held in advance with the first air passage component 762. The protruding portion (extending portion) 763 of the first air path component 762 may be fixed or held on the convex portion 450 (for example, the end surface 451 on the front surface side). In this way, the second air passage component 764 can be attached to the convex portion 450 in the storage chamber in a state in which the second air passage component 764 is fixed or held to the first air passage component 762 to form the cold air passage 760. The first air passage component 762 and the second air passage component 764 can constitute an assembly of the cold air passage 760, so that the cold air passage is detachable. 760 assemblies can be easily installed in a storage chamber (eg, convex portion 450).

また、真空断熱材４００との間に主目的が接着である第１介在部材である接着剤（自己接着性を有する発泡断熱材であっても良い）が介在する凹部４４０においては、内箱７５０と真空断熱材４００との間の第１介在部材である接着剤（自己接着性を有する発泡断熱材であっても良い）の厚さが小さいので、仮に冷気風路７６０（第１風路部品あるいは第２風路部品７６４あるいは第１風路部品と第２風路部品の組立体等）を凹部４４０に取り付ける場合には、固定するためのネジなどにより真空断熱材４００を傷つけてしまう可能性があるが、本実施の形態では、冷気風路７６０を凸部４５０に取り付けるようにしているため、冷気風路７６０を真空断熱材４００と対向する位置の凹部４４０あるいは内箱７５０に取り付けなくてもよくなるので、真空断熱材４００の外包材などを傷つけることが無くなり信頼性が高く断熱性能の低下や劣化の少ない断熱箱体、冷蔵庫、機器が得られる。   Further, in the concave portion 440 in which an adhesive (which may be a foam heat insulating material having self-adhesiveness), which is a first interposed member whose main purpose is adhesion, is interposed between the vacuum heat insulating material 400 and the inner box 750. Since the thickness of the adhesive (which may be a foam heat insulating material having self-adhesiveness) as the first intervening member between the vacuum air insulating material 400 and the vacuum heat insulating material 400 is small, the cold air flow path 760 (first air flow path component) Alternatively, when the second air passage component 764 or the assembly of the first air passage component and the second air passage component) is attached to the recess 440, the vacuum heat insulating material 400 may be damaged by screws or the like for fixing. However, in this embodiment, since the cold air passage 760 is attached to the convex portion 450, the cold air passage 760 is not attached to the concave portion 440 or the inner box 750 at a position facing the vacuum heat insulating material 400. Well Because, reduced and less heat-insulating main body degradation of high heat insulating performance eliminates reliability hurt like outer cover material of the vacuum heat insulating material 400, refrigerators, appliance is obtained.

ここで、冷気風路７６０としては、凹部４４０を覆うように第１風路部品７６２を凸部４５０に取り付けるようにすれば、第２風路部品７６４を設けなくても冷気風路７６０を形成することができるので、部品点数が少なく低コストで組み立て容易で信頼性の高い断熱箱体や冷蔵庫が得られる。   Here, as the cold air duct 760, if the first air duct component 762 is attached to the convex portion 450 so as to cover the recess 440, the cool air duct 760 is formed without providing the second air duct component 764. Therefore, it is possible to obtain a heat-insulated box or a refrigerator that has a small number of parts, is easy to assemble at low cost, and is highly reliable.

（凹部を冷気風路として利用（その３））
図６は、本発明の実施の形態１を表す別の冷蔵庫の横断面図で、冷蔵庫１の上下方向に対して垂直な面で冷蔵庫をカットしたときの横断面図である。図６において、図１〜図５と同等部分は同一の符号を付して説明は省略する。 (Using the recess as a cold air passage (part 3))
FIG. 6 is a cross-sectional view of another refrigerator representing the first embodiment of the present invention, and is a cross-sectional view when the refrigerator is cut along a plane perpendicular to the vertical direction of the refrigerator 1. In FIG. 6, the same parts as those in FIGS.

図６において、凸部４５０の側面４５２と背面壁７３０とによって凹部４４０が形成されており、背面壁７３０の内面（貯蔵室側）を形成する内箱７５０と背面壁７３０の外面を形成する外箱７１０との間には板状の真空断熱材４００が設けられている。また、図示されていないが、側壁７９０の内面（貯蔵室側）を形成する内箱７５０と側壁７９０の外面を形成する外箱７１０との間にも板状の真空断熱材４００が設けられている。背面壁７３０あるいは凹部４４０に設けられる冷気風路７６０は、意匠性を有するカバー部材である第１風路部品７６２と、第１風路部品７６２の背面側（内箱７５０側）に設けられ、断熱性を有する第２風路部品７６４とから構成され、凹部４４０内に配置されている。このカバー部材である第１風路部品７６２あるいは第２風路部品７６４は、取り付け部（係合部）を有しており、背面壁に設けられている取り付け部（係合部）に嵌め込みあるいはねじ等の固定部材によって取り付け部同士が係合するなどして背面壁７３０に取り付けられる。図では、冷気風路７６０の側部（側面）７６６と凸部４５０の側面（側方）４５２との間に空間７７０が設けられており、この空間７７０が貯蔵スペースとして使用できるので、貯蔵室（たとえば冷蔵室２）内の収納物の収納容積を大きくすることが可能となっている。   In FIG. 6, a concave portion 440 is formed by the side surface 452 of the convex portion 450 and the rear wall 730, and an inner box 750 that forms the inner surface (storage chamber side) of the rear wall 730 and an outer surface that forms the outer surface of the rear wall 730. A plate-like vacuum heat insulating material 400 is provided between the box 710 and the box 710. Although not shown, a plate-like vacuum heat insulating material 400 is also provided between the inner box 750 that forms the inner surface (the storage chamber side) of the side wall 790 and the outer box 710 that forms the outer surface of the side wall 790. Yes. The cold air passage 760 provided in the back wall 730 or the recess 440 is provided on the first air passage component 762 that is a cover member having design properties, and on the back side (inner box 750 side) of the first air passage component 762, The second air passage component 764 having heat insulation properties is disposed in the recess 440. The first air passage component 762 or the second air passage component 764 that is the cover member has an attachment portion (engagement portion) and is fitted into the attachment portion (engagement portion) provided on the back wall. The attachment portions are attached to the back wall 730 by engaging the fixing members such as screws. In the figure, a space 770 is provided between a side portion (side surface) 766 of the cold air passage 760 and a side surface (side portion) 452 of the convex portion 450, and this space 770 can be used as a storage space. It is possible to increase the storage volume of storage items (for example, the refrigerator compartment 2).

図６においては、冷気風路７６０を構成する第２風路部品７６４は、冷気の流れ方向（たとえば冷蔵庫１の上下方向）に対する断面形状が開口部を有するＵ字状をしており、このＵ字状の開口部が冷蔵庫１の背面方向を向くように冷蔵庫１の貯蔵室内に設置される（貯蔵室背面の凹部４４０内に配置される）。この第２風路部品７６４のＵ字状の開口が凹部４４０を形成する内箱７５０に当接するように第１風路部品７６２で押圧した状態で第１風路部品７６２を凸部４５０に固定あるいは保持することで第２風路部品７６４と内箱７５０により冷気風路７６０が構成される。ここで、第１風路部品７６２が断熱機能を有する部材（たとえばスチロールや多孔質部材等）で構成されている場合には、第２風路部品７６４は不要となるので、第１風路部品７６２と内箱にて冷気風路７６０を構成することができ、低コストの冷蔵庫、機器が得られる。ここで、第２風路部品７６４は、冷気の流れ方向に対する断面がＵ字状の開口を有しているが、別にＵ字状でなくてもよく、冷気風路を構成できれば良いので、冷気の流れ方向に対する断面形状が角状あるいは楕円状であって内部に冷気風路が形成できていれば良い。内部の冷気風路の断面形状も角状あるいは楕円状であっても良い。冷気風路は円形あるいは楕円形状の方が流路抵抗が小さく効率が良く、また、円形よりも幅方向に細長い楕円形状の方が、奥行き方向の長さを小さくできるので、貯蔵室内への突出量を小さくでき、収納容積も大きくできる。   In FIG. 6, the second air passage component 764 constituting the cold air passage 760 has a U-shaped cross section with an opening in the cold air flow direction (for example, the vertical direction of the refrigerator 1). It is installed in the storage chamber of the refrigerator 1 so that the letter-shaped opening faces the back side of the refrigerator 1 (arranged in the recess 440 on the back of the storage chamber). The first air passage component 762 is fixed to the convex portion 450 in a state of being pressed by the first air passage component 762 so that the U-shaped opening of the second air passage component 764 is in contact with the inner box 750 that forms the recess 440. Alternatively, the cold air path 760 is configured by the second air path component 764 and the inner box 750 by being held. Here, when the first air passage component 762 is formed of a member having a heat insulating function (for example, styrene or a porous member), the second air passage component 764 is not necessary, and therefore the first air passage component. The cold air path 760 can be configured by the 762 and the inner box, and a low-cost refrigerator and equipment can be obtained. Here, the second air passage component 764 has an opening having a U-shaped cross section with respect to the flow direction of the cold air. However, the second air passage component 764 does not have to be U-shaped separately and only needs to be able to configure the cold air air passage. It is only necessary that the cross-sectional shape with respect to the flow direction is square or elliptical and a cold air passage is formed inside. The cross-sectional shape of the internal cold air passage may also be square or elliptical. A circular or elliptical cool air passage is more efficient because the flow resistance is smaller and more efficient, and the elliptical shape elongated in the width direction than the circular shape can reduce the length in the depth direction. The amount can be reduced and the storage volume can be increased.

ここで、第１風路部品７６２あるいは第２風路部品７６４を直接凹部４４０を形成する内箱７５０に固定あるいは保持することで冷気風路７６０を形成しても良いが、図４のように第１風路部品７６２に突出部（延出部）７６３を設け、この突出部７６３を図４の場合よりも長く延出させることによって、突出部（延出部）７６３が空間７７０をまたいで凸部４５０に固定できるようにしても良い。この場合、突出部（延出部）７６３を固定する場所によっては突出部７６３により空間７７０の収納容積が減少する可能性があるため、冷気風路７６０の上下に設けられる天面壁７４０あるいは底面壁７８０あるいは貯蔵室間を仕切る仕切壁２４あるいは棚８０の近傍にまで突出部（延出部）７６３を延出させて（またがせて）凸部４５０に固定あるいは保持させるようにすれば収納容積の減少を小さくできる（背の高い収納物が突出部（延出部）７６３に当たって収納できない事態を抑制できる）。   Here, the first air passage component 762 or the second air passage component 764 may be directly fixed to or held in the inner box 750 that forms the recess 440, but the cold air passage 760 may be formed as shown in FIG. The first air passage component 762 is provided with a protrusion (extension part) 763, and the protrusion 763 extends longer than that in the case of FIG. 4 so that the protrusion (extension part) 763 straddles the space 770. You may enable it to fix to the convex part 450. FIG. In this case, depending on the place where the protruding portion (extending portion) 763 is fixed, the storage volume of the space 770 may be reduced by the protruding portion 763. Therefore, the top wall 740 or the bottom wall provided above and below the cold air passage 760 The projecting portion (extending portion) 763 extends to the vicinity of the partition wall 24 or the shelf 80 for partitioning between 780 or the storage chambers, and is fixed or held on the convex portion 450. Can be reduced (a situation in which a tall stored item cannot be stored by hitting the protruding portion (extending portion) 763) can be suppressed.

ここで、冷気風路７６０を形成する部品（第１風路部品あるいは第２風路部品）は、冷気風路７６０の上下に設けられる天面壁７４０近傍あるいは底面壁７８０近傍あるいは貯蔵室間を仕切る仕切壁２４近傍あるいは側壁７９０に直接、固定あるいは保持するるようにしても良い。（たとえば突出部７６３が空間７７０の上下方向略中央あるいは略中央よりも下方に設けられている場合には、空間７７０に背の高い収納物を収納する場合に収納物が突出部７６３に当たって収納できない可能性があるので、天面壁７４０近傍（あるいは底面壁７８０近傍あるいは貯蔵室間を仕切る仕切壁２４近傍）などの邪魔になりにくい場所に設けるようにすれば、空間７７０に収納物を収納しても突出部７６３が邪魔になりにくく収納容積を大きくできる。）   Here, the components (first air channel component or second air channel component) forming the cold air air passage 760 partition the vicinity of the top wall 740 or the bottom wall 780 provided between the upper and lower sides of the cold air air passage 760 or between the storage chambers. You may make it fix or hold | maintain directly to the partition wall 24 vicinity or the side wall 790. FIG. (For example, when the protruding portion 763 is provided in the vertical center of the space 770 or below the approximate center, the stored item hits the protruding portion 763 and cannot be stored when a tall stored item is stored in the space 770. Therefore, if it is provided in a place where it is difficult to obstruct, such as the vicinity of the top wall 740 (or the vicinity of the bottom wall 780 or the partition wall 24 that partitions the storage chambers), the stored items are stored in the space 770. Also, the protrusion 763 is less likely to get in the way, and the storage capacity can be increased.)

また、少なくとも貯蔵室内の背面の一部を覆うカバーである第１風路部品７６２は、冷気風路７６０の少なくとも一部を形成あるいは冷気風路７６０の少なくとも一部を覆う風路カバー部と、風路カバー部から幅方向（左右方向あるいは側壁７９０方向）に延出し背面壁７３０あるいは凹部４４０の少なくとも一部を覆う背面カバー部と、背面カバー部に接続あるいは背面カバー部に一体に形成されて側壁７９０の少なくとも一部を覆う側面カバー部と、を備えるようにしてもよい。そして、背面カバー部を背面壁７３０あるいは凹部４４０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。あるいは、側面カバー部を側壁７９０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。このようにすると、カバーである第１風路部品７６２によって、背面壁７３０や側壁７９０や凸部４５０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   Further, the first air passage component 762 that is a cover that covers at least a part of the back surface of the storage chamber includes at least a part of the cold air passage 760 or an air passage cover portion that covers at least a part of the cold air passage 760, A back cover part extending in the width direction (left-right direction or side wall 790 direction) from the air path cover part and covering at least a part of the back wall 730 or the recess 440, and connected to the back cover part or integrally formed with the back cover part You may make it provide the side surface cover part which covers at least one part of the side wall 790. FIG. And you may make it attach a back cover part to the inner box 750 which forms the back wall 730, the recessed part 440, or the convex part 450 by fixing or hold | maintaining. Alternatively, the side cover portion may be attached by being fixed or held on the inner box 750 forming the side wall 790 or the convex portion 450. If it does in this way, since at least one part of the back wall 730, the side wall 790, and the convex part 450 can be covered with the 1st air path component 762 which is a cover, design property improves and assembly property also improves.

また、少なくとも貯蔵室内の背面の一部を覆うカバーである第１風路部品７６２は、冷気風路７６０の少なくとも一部を形成あるいは冷気風路７６０の少なくとも一部を覆う風路カバー部と、風路カバー部から幅方向（左右方向あるいは側壁７９０方向）に延出し背面壁７３０あるいは凹部４４０の少なくとも一部を覆う背面カバー部と、風路カバー部と接続あるいは風路カバー部と一体に形成されて背面壁７３０の上下方向に設けられる仕切壁２４（天井壁７４０あるいは底面壁７８０を含む）の少なくとも一部を覆う上下壁カバー部と、を備えるようにしてもよい。そして、背面カバー部を背面壁７３０あるいは凹部４４０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。あるいは、上下壁カバー部を背面壁７３０の上下方向に設けられる仕切壁２４（天井壁７４０あるいは底面壁７８０を含む）を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。このようにすると、カバーである第１風路部品７６２によって、背面壁７３０や仕切壁２４や天井壁７４０や底面壁７８０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   Further, the first air passage component 762 that is a cover that covers at least a part of the back surface of the storage chamber includes at least a part of the cold air passage 760 or an air passage cover portion that covers at least a part of the cold air passage 760, A back cover portion extending in the width direction (left-right direction or side wall 790 direction) from the air passage cover portion and covering at least a part of the back wall 730 or the recess 440, and connected to the air passage cover portion or integrally formed with the air passage cover portion. In addition, an upper and lower wall cover portion that covers at least a part of the partition wall 24 (including the ceiling wall 740 or the bottom wall 780) provided in the vertical direction of the back wall 730 may be provided. And you may make it attach a back cover part to the inner box 750 which forms the back wall 730, the recessed part 440, or the convex part 450 by fixing or hold | maintaining. Alternatively, the upper and lower wall cover portions may be attached to the inner box 750 that forms the partition wall 24 (including the ceiling wall 740 or the bottom wall 780) provided in the vertical direction of the back wall 730. . In this case, at least a part of the back wall 730, the partition wall 24, the ceiling wall 740, and the bottom wall 780 can be covered by the first air passage component 762 that is a cover. Will also improve.

冷気風路７６０あるいは冷気風路７６０を形成する部品（第１風路部品あるいは第２風路部品など）には、冷却器１３で生成されて冷気風路７６０内等を流れてきた冷気を貯蔵室（たとえば冷蔵室２や野菜室５や冷凍室６など）内に供給するための冷気供給口７６８が冷気風路７６０の側面あるいは前面に１つあるいは複数設けられており、この冷気供給口７６８は貯蔵室内の食品などの収納物や貯蔵物を効果的に冷却できる位置に設けられている。側面の冷気供給口と前面の冷気供給口の上下方向の高さ位置は同じ位置でも良いが、高さ位置をずらして配置した方が高さの異なる位置から冷却できるので、食品などの収納物や貯蔵物を満遍なく効率よく冷却できる。また、左右の側面（右側面と左側面）に設けられる冷気供給口７６８の高さ位置も同じ高さでも良いが、高さ位置をずらして配置した方が高さの異なる位置から冷却できるので、食品などの収納物や貯蔵物を満遍なく効率よく冷却できる。   Cold air that has been generated by the cooler 13 and has flowed through the cold air passage 760 or the like is stored in the cold air passage 760 or a part that forms the cold air passage 760 (such as the first air passage component or the second air passage component). One or a plurality of cold air supply ports 768 for supplying the inside of the room (for example, the refrigerator compartment 2, the vegetable compartment 5, the freezer compartment 6, etc.) are provided on the side surface or the front surface of the cold air passage 760. Is provided at a position where the stored items such as food in the storage room and the stored items can be cooled effectively. The vertical position of the cold air supply port on the side and the cold air supply port on the front surface may be the same. However, if the height is shifted, cooling can be performed from a different height, so food and other items can be stored. And cool the stored items evenly and efficiently. Moreover, although the height position of the cool air supply port 768 provided in the left and right side surfaces (the right side surface and the left side surface) may be the same height, it is possible to cool from a position having a different height by disposing the height positions. Storing and storing items such as food can be cooled evenly and efficiently.

なお、真空断熱材４００の幅寸法、断熱箱体や冷蔵庫への設置位置は図４や図５と同等である。すなわち、冷蔵庫１の背面壁７３０に設けられる真空断熱材４００の左右方向の幅は、たとえば冷蔵庫１の側壁７９０の貯蔵室内面壁７９１、７９２間の幅よりも小さくしており、冷蔵庫１の背面側に設けられるウレタン断熱材の充填口７０３、７０４より充填されるウレタンなどの断熱材の充填流路を塞ぐことがないようにしている。   In addition, the width dimension of the vacuum heat insulating material 400, the installation position to a heat insulation box or a refrigerator are the same as FIG.4 and FIG.5. That is, the width in the left-right direction of the vacuum heat insulating material 400 provided on the back wall 730 of the refrigerator 1 is, for example, smaller than the width between the storage chamber inner walls 791 and 792 of the side wall 790 of the refrigerator 1. The filling flow path of the heat insulating material such as urethane filled from the filling ports 703 and 704 of the urethane heat insulating material provided in is not blocked.

ここで、真空断熱材４００は、冷蔵庫１の背面の左右端部側に設けられるウレタンなどの断熱材の充填口７０３、７０４よりも外側にはみ出さない位置（たとえば充填口７０３、７０４の開口を塞がない位置、あるいは充填口７０３、７０４の開口より断熱箱体内（たとえば側壁７９０）に流入するウレタンなどの断熱材が側壁７９０内あるいは背面壁７３０内等に流入するのを阻害したり邪魔したりしない位置）に配置されていれば良い。たとえば左右の充填口（左充填口７０３と右充填口７０４）よりも幅方向中心側（内側）の位置、また、充填口７０３、７０４とは上下方向位置が重ならない位置に配置することで充填口７０３、７０４より断熱箱体内（内箱７５０と外箱７１０の間の空間３１５、たとえば側壁７９０内や背面壁７３０内など）に充填されるウレタンなどの断熱材が断熱箱体内（内箱７５０と外箱７１０の間の空間３１５）に充填されるのを阻害したり邪魔したりしないので、断熱材の充填不足や密度不足がなくなり、断熱性能が低下しない高性能な断熱箱体や冷蔵庫が得られる。   Here, the vacuum heat insulating material 400 is located outside the filling ports 703 and 704 of a heat insulating material such as urethane provided on the left and right end portions of the rear surface of the refrigerator 1 (for example, the openings of the filling ports 703 and 704 are not opened). Insulates or obstructs the flow of heat insulating material such as urethane flowing into the heat insulating box (for example, the side wall 790) from the unoccluded position or the opening of the filling ports 703 and 704 into the side wall 790 or the back wall 730. It is sufficient if it is arranged at a position where it does not. For example, filling is performed by placing the left and right filling ports (the left filling port 703 and the right filling port 704) on the center side (inside) in the width direction, and the filling ports 703 and 704 at positions where the vertical positions do not overlap. A heat insulating material such as urethane filled in the heat insulating box (the space 315 between the inner box 750 and the outer box 710, for example, in the side wall 790 or the back wall 730) from the ports 703 and 704 is formed in the heat insulating box (inner box 750). The space 315) between the outer box 710 and the outer box 710 is not obstructed or obstructed, so there is no insufficient filling or density of the heat insulating material, and a high performance heat insulating box or refrigerator that does not deteriorate the heat insulating performance. can get.

ここで、真空断熱材４００と内箱７５０が接着を主目的とする接着剤（自己接着性を有する発泡断熱材でも良い）を介して直接、接着されている直接接着部位である凹部４４０は、たとえば硬質ウレタンなどの補強部材が充填されている補強部材介在部位（たとえば凸部４５０）に対して凸部４５０の突出高さ分だけ段差部７７６を有しており、凹部４４０は凸部４５０に対して奥行き方向（後方側）に凹んでいる。逆に補強部材介在部位である凸部４５０は、段差部７７６の分だけ直接接着部位である凹部４４０に対して奥行き方向の前方側に突出している。また真空断熱材４００と内箱７５０が自己接着性の発泡断熱材などの接着剤を介して直接、接着されている直接接着部位である凹部４４０は、冷気風路７６０の高さ（厚さ）分だけ段差を有しており、凹部４４０は冷気風路７６０の前面側端面７６９に対して奥行き方向（後方側）に凹んでいる。逆に冷気風路７６０の前面側端面７６９は、段差の分だけ直接接着部位に対して奥行き方向の前方側に突出している。   Here, the recess 440, which is a direct bonding site where the vacuum heat insulating material 400 and the inner box 750 are directly bonded via an adhesive (may be a self-adhesive foamed heat insulating material), For example, there is a stepped portion 776 corresponding to the protruding height of the convex portion 450 with respect to a reinforcing member intervening portion (for example, the convex portion 450) filled with a reinforcing member such as hard urethane, and the concave portion 440 is formed on the convex portion 450. On the other hand, it is recessed in the depth direction (rear side). On the contrary, the convex part 450 which is a reinforcement member interposition part protrudes ahead in the depth direction with respect to the concave part 440 which is a direct adhesion part by the stepped part 776. Further, the concave portion 440, which is a direct bonding portion where the vacuum heat insulating material 400 and the inner box 750 are directly bonded via an adhesive such as a self-adhesive foam heat insulating material, is the height (thickness) of the cold air passage 760. The concave portion 440 is recessed in the depth direction (rear side) with respect to the front end surface 769 of the cold air passage 760. On the other hand, the front side end surface 769 of the cold air passage 760 protrudes forward in the depth direction with respect to the adhesion portion by the level difference.

以上のように本実施の形態では、内箱７５０と外箱７１０から形成され、内箱７５０と外箱７１０との間に真空断熱材４００を備えた断熱箱体や冷蔵庫や保冷庫やショーケースなどの機器において、室内（たとえば貯蔵室内）の背面壁７３０内に設けられる真空断熱材４００を内箱７５０に直接、自己接着性を有する発泡断熱材などの接着剤で貼り付けた直接接着部位（図では凹部４４０）と、真空断熱材４００と内箱７５０との間に箱体の強度を向上させる補強部材であるウレタンなどの断熱材が介在する補強部材介在部位（図では凸部４５０）とを備えている。ここで、真空断熱材４００と外箱７１０とは、直接、ホットメルトや両面接着テープなどの第２の接着剤で貼り付けられている。ホットメルトや両面テープなどの第２の接着剤は、真空断熱材４００側、あるいは外箱７１０側に予め塗布あるいは貼り付けることができるので、接着剤の厚さを薄く出来るので良いが、塗りムラや貼りムラなどができる恐れがあるので、真空断熱材４００と内箱７５０の間は自己接着性を有する発泡断熱材を使用した方が良い。   As described above, in the present embodiment, the heat insulating box, the refrigerator, the cool box, and the showcase that are formed from the inner box 750 and the outer box 710 and that includes the vacuum heat insulating material 400 between the inner box 750 and the outer box 710. In a device such as the above, a direct bonding portion (a vacuum bonding material 400 provided in a back wall 730 of a room (for example, a storage room) is directly attached to the inner box 750 with an adhesive such as a self-adhesive foam heat insulating material ( In the figure, a concave portion 440) and a reinforcing member intervening portion (a convex portion 450 in the figure) where a heat insulating material such as urethane, which is a reinforcing member for improving the strength of the box body, is interposed between the vacuum heat insulating material 400 and the inner box 750. It has. Here, the vacuum heat insulating material 400 and the outer box 710 are directly attached with a second adhesive such as hot melt or double-sided adhesive tape. Since the second adhesive such as hot melt and double-sided tape can be applied or pasted in advance to the vacuum heat insulating material 400 side or the outer box 710 side, the thickness of the adhesive can be reduced. It is better to use a foam heat insulating material having self-adhesiveness between the vacuum heat insulating material 400 and the inner box 750, because there is a risk that uneven bonding or the like may occur.

また、本実施の形態では、たとえば補強部材介在部位（たとえば凸部４５０）と直接接着部位（たとえば凹部４４０）とが貯蔵室内の同一高さ位置の幅方向に設けられており、貯蔵室内の幅方向の左右端部に設けられた補強部材介在部位（たとえば凸部４５０）と、左右の補強部材介在部位に挟まれるように左右の補強部材介在部位の間に設けられた直接接着部位（たとえば凹部４４０）と、によって、貯蔵室背面の左右方向に凸部４５０（補強部材介在部位）が形成され、凸部４５０の間に凹部４４０（直接接着部位）が形成されている。ここで、凹部４４０と凸部４５０は、貯蔵室内の上下方向のほぼ全高さ範囲にわたって設けた方が箱体の強度確保あるいは冷気風路の確保の点より望ましい。   In the present embodiment, for example, a reinforcing member intervening portion (for example, convex portion 450) and a direct adhesion portion (for example, concave portion 440) are provided in the width direction at the same height position in the storage chamber. Reinforcement member intervening portion (for example, convex portion 450) provided at the left and right end portions in the direction and a direct adhesion portion (for example, concave portion) provided between the left and right reinforcing member intervening portions so as to be sandwiched between the left and right reinforcing member intervening portions 440), the convex part 450 (reinforcement member interposition part) is formed in the left-right direction on the back of the storage chamber, and the concave part 440 (direct adhesion part) is formed between the convex parts 450. Here, it is preferable that the concave portion 440 and the convex portion 450 are provided over almost the entire height range in the vertical direction in the storage chamber from the viewpoint of securing the strength of the box or securing the cold air passage.

このように、凹部４４０と対向する位置において、真空断熱材４００と外箱７１０とを第２の接着剤を介して直接接触あるいは当接させるようにしているので、外箱７１０と真空断熱材４００との間に断熱材が不要であり、断熱材を介在させる場合に比べて貯蔵室内容積を大きくできる。また、直接接着部位（たとえば凹部４４０）においては、真空断熱材４００と内箱７５０を接着性を有する発泡接着剤を介して接触あるいは当接させている。本実施の形態では、真空断熱材４００の配設部位（たとえば凹部４４０）では、真空断熱材４００で断熱性能と強度を持たせるようにしているので、内箱７５０と真空断熱材４００との間には断熱を主目的とする断熱材が不要であり、断熱を主目的として断熱材を介在させる場合に比べて壁厚さを薄くできるので、貯蔵室内容積を大きくできる。ここで、接着剤として流動性が必要な場合には、自己接着性を有する硬質ウレタンフォームなどを使用して空間３１５内に二相状態で流入させた後に発泡させることで接着させてもよい。   As described above, since the vacuum heat insulating material 400 and the outer box 710 are brought into direct contact or contact with each other via the second adhesive at the position facing the concave portion 440, the outer box 710 and the vacuum heat insulating material 400 are brought into contact with each other. A heat insulating material is not required between the two, and the volume of the storage chamber can be increased as compared with the case where a heat insulating material is interposed. Moreover, in the direct adhesion | attachment site | part (for example, recessed part 440), the vacuum heat insulating material 400 and the inner box 750 are contacted or contacted via the foaming adhesive agent which has adhesiveness. In the present embodiment, the vacuum heat insulating material 400 is provided with heat insulating performance and strength at the location where the vacuum heat insulating material 400 is disposed (for example, the concave portion 440), and therefore, between the inner box 750 and the vacuum heat insulating material 400. Does not require a heat insulating material mainly for heat insulation, and the wall thickness can be reduced as compared with the case where a heat insulating material is interposed for the purpose of heat insulation. Here, when fluidity is required as an adhesive, it may be bonded by foaming after flowing into the space 315 in a two-phase state using a hard urethane foam having self-adhesiveness.

本実施の形態では、貯蔵室内を冷却する冷気を送風する冷気風路７６０として凹部４４０を利用することができるので、ユーザの手の届きにくい貯蔵室の背面の凹部４４０の有効利用が行えるため、貯蔵室内の収納容積を効率よく使用できる。また、所定の強度（曲げ強度や折り曲げ用度）を有する真空断熱材４００を使用し、また、凸部４５０を貯蔵室内に所定の幅（ねじり強度や折り曲げ強度が確保できる程度が好ましい）で上下方向に連続して設けるようにすれば、断熱箱体７００や冷蔵庫１の必要な強度が得られ、ねじり強度や前後方向や左右方向の折り曲げ強度が確保できるので、信頼性の高い断熱箱体７００や冷蔵庫１が得られる。なお、断熱箱体７００や冷蔵庫１の必要な強度が得られ、ねじり強度や前後方向や左右方向の折り曲げ強度が確保できれば、凸部４５０は、上下方向に連続して設ける必要はなく、１箇所あるいは断続して複数箇所設けても良い。   In the present embodiment, since the concave portion 440 can be used as the cold air passage 760 for blowing the cold air that cools the storage chamber, the concave portion 440 on the back surface of the storage chamber that is difficult to reach by the user can be effectively used. The storage capacity in the storage chamber can be used efficiently. In addition, the vacuum heat insulating material 400 having a predetermined strength (bending strength and bending degree) is used, and the convex portion 450 is placed in the storage chamber at a predetermined width (preferably enough to ensure torsional strength and bending strength). If it is provided continuously in the direction, the required strength of the heat insulating box 700 and the refrigerator 1 can be obtained, and the torsional strength and the bending strength in the front-rear direction and the left-right direction can be ensured. And the refrigerator 1 is obtained. If the required strength of the heat insulating box 700 and the refrigerator 1 can be obtained and the torsional strength and the bending strength in the front-rear direction and the left-right direction can be secured, the convex portion 450 does not need to be provided continuously in the up-down direction. Alternatively, a plurality of locations may be provided intermittently.

本実施の形態では、貯蔵室内背面の左右端部側（幅方向端部側）において上下方向にわたって配設されたウレタンなどの断熱材７０１で構成された凸部４５０が形成されるので、この凸部４５０が形成されることによって断熱箱体７００や冷蔵庫１のねじれ強度、折り曲げ強度が改善される。したがって、断熱箱体７００や冷蔵庫１が変形して貯蔵室（例えば冷蔵室２）の前面に設けられた貯蔵室扉（例えば回転式（ヒンジ式）の冷蔵室扉７）が傾いたり、たとえば観音開き扉の場合に左右の扉（７Ａ、７Ｂ）の一方が傾いて位置ずれを起こしたりすることがなくなるので、貯蔵室扉の開閉がスムーズに行える。また、左右の貯蔵室扉の位置ズレが起こらないので見栄えが良い。また、引き出し式扉の場合には、断熱箱体７００が変形することによって貯蔵室（たとえば製氷室３、切替室４、野菜室５、冷凍室６等）内壁（左右の側壁）７９１、７９２に設けられた引出式ケース用のレールの取り付け高さが左右で異なったり、傾いたりすることがなくなるので、ケースの出し入れがスムーズに行える。   In the present embodiment, a convex portion 450 made of a heat insulating material 701 such as urethane disposed in the vertical direction is formed on the left and right end portions (width direction end portion side) on the back of the storage chamber. By forming the portion 450, the torsional strength and the bending strength of the heat insulating box 700 and the refrigerator 1 are improved. Therefore, the heat insulation box 700 and the refrigerator 1 are deformed, and the storage room door (for example, the rotating (hinge type) refrigerating room door 7) provided on the front surface of the storage room (for example, the refrigerating room 2) is tilted or opened, for example, In the case of a door, one of the left and right doors (7A, 7B) does not tilt and cause a positional shift, so that the storage room door can be opened and closed smoothly. In addition, the left and right storage room doors are not misaligned. Further, in the case of a drawer-type door, the heat insulating box 700 is deformed so that the inner walls (left and right side walls) 791 and 792 of the storage room (for example, the ice making room 3, the switching room 4, the vegetable room 5 and the freezing room 6) are transformed. Since the installation height of the provided rail for the drawer type case does not differ or tilt on the left and right sides, the case can be inserted and removed smoothly.

ここで、本実施の形態では、真空断熱材４００、凸部４５０を形成するウレタンなどの断熱材は、所定の強度が必要なため、真空断熱材４００は曲げ弾性率は２０ＭＰａ以上、凸部４５０を形成するウレタンなどの断熱材は曲げ弾性率が１３．０ＭＰａ以上（好ましくは１５ＭＰａ以上）、密度が６０ｋｇ／ｍ３より大きなもの（好ましくは６２ｋｇ／ｍ３以上）を使用している。従来は、ウレタンなどの断熱材で箱体強度と断熱性能の両方を得ようとしていたため、箱体強度確保の観点からウレタン断熱材には曲げ弾性率を大きくすることが必要であるが、硬質ウレタンの特性として曲げ弾性率を大きくしようとすると密度が大きくなり密度が大きくなると断熱性能が低下する。したがって、ウレタンの場合、所定の断熱性能を得るために曲げ弾性率を１０ＭＰａ程度以上にすることが困難であり、したがって、ウレタンの厚さをたとえば１５ｍｍ程度よりも薄くすることができなかった。ここで、ウレタンの厚さは薄ければ薄い方が壁の厚さを小さくでき、貯蔵室内容積を大きくできるので良い。しかし、壁厚さを小さくするためにウレタンの厚さを薄くしていくとウレタンの密度が大きくなり曲げ弾性率も大きくなるため箱体強度は大きくできるが、密度が大きくなると断熱性能が悪化するため、ウレタンの厚さを所定値（たとえば１５ｍｍ）よりも薄くすることは困難であった。 Here, in this embodiment, since the heat insulating material such as urethane forming the vacuum heat insulating material 400 and the convex portion 450 needs a predetermined strength, the vacuum heat insulating material 400 has a bending elastic modulus of 20 MPa or more and the convex portion 450. As the heat insulating material such as urethane, the one having a flexural modulus of 13.0 MPa or more (preferably 15 MPa or more) and a density larger than 60 kg / m 3 (preferably 62 kg / m 3 or more) is used. Conventionally, it was necessary to increase the flexural modulus of urethane insulation from the viewpoint of securing the box strength because it was trying to obtain both box strength and heat insulation performance with insulation materials such as urethane. As a characteristic of urethane, if the flexural modulus is increased, the density increases, and if the density increases, the heat insulating performance decreases. Therefore, in the case of urethane, it is difficult to make the flexural modulus about 10 MPa or more in order to obtain a predetermined heat insulation performance, and therefore the thickness of the urethane cannot be made thinner than about 15 mm, for example. Here, if the thickness of the urethane is small, the thinner one can reduce the wall thickness, and the storage chamber volume can be increased. However, if the thickness of the urethane is reduced in order to reduce the wall thickness, the density of the urethane increases and the flexural modulus also increases, so that the box strength can be increased, but the heat insulation performance deteriorates as the density increases. For this reason, it has been difficult to make the thickness of the urethane thinner than a predetermined value (for example, 15 mm).

本実施の形態では、真空断熱材４００に曲げ弾性率が２０ＭＰａ以上の大きなものを使用するようにしているので、真空断熱材４００が配設されている部分（箱体あるいは壁）では、断熱性能と強度の両方を真空断熱材４００に持たせることが可能であり、外箱と内箱の間にウレタンなどの断熱材を充填する場合でも、真空断熱材が配設されている部位では、ウレタンを断熱を主目的とする断熱材として使用する必要がなく接着剤として使用可能となる。したがって、ウレタンなどの断熱材を真空断熱材４００と内箱７５０、あるいは真空断熱材４００と外箱７１０とを接着する接着剤として使用できるので、ウレタンの厚さを小さくしてウレタンの断熱性能が低下しても問題ない。ここで、真空断熱材４００の被覆率（断熱箱体７００、扉の表面積に対する真空断熱材４００の配設面積の比率）あるいは真空断熱材４００の充填率（外箱７１０と内箱７５０との間の空間３１５に対する真空断熱材４００の占める容積比率）を所定値以上（たとえば４０％以上）に大きくすることで、真空断熱材４００が配設されていない部位があったとしても断熱箱体７００としての断熱性能、強度も確保できる。   In the present embodiment, since the vacuum heat insulating material 400 having a large bending elastic modulus of 20 MPa or more is used, the portion (box or wall) where the vacuum heat insulating material 400 is disposed has a heat insulating performance. It is possible to give the vacuum heat insulating material 400 both strength and strength, and even in the case where a heat insulating material such as urethane is filled between the outer box and the inner box, in the portion where the vacuum heat insulating material is disposed, urethane is used. Can be used as an adhesive without having to be used as a heat insulating material mainly for heat insulation. Therefore, since a heat insulating material such as urethane can be used as an adhesive for bonding the vacuum heat insulating material 400 and the inner box 750 or the vacuum heat insulating material 400 and the outer box 710, the thickness of the urethane can be reduced and the heat insulating performance of the urethane can be reduced. There is no problem even if it drops. Here, the coverage of the vacuum heat insulating material 400 (the ratio of the arrangement area of the vacuum heat insulating material 400 to the surface area of the heat insulating box 700 and the door) or the filling rate of the vacuum heat insulating material 400 (between the outer box 710 and the inner box 750). By increasing the volume ratio of the vacuum heat insulating material 400 to the space 315 to a predetermined value or more (for example, 40% or more), even if there is a portion where the vacuum heat insulating material 400 is not provided, the heat insulating box 700 is obtained. Heat insulation performance and strength can be secured.

したがって、本実施の形態のように凹部４４０など外箱７１０と内箱７５０との間に真空断熱材４００が配設されている部位においては、真空断熱材４００で断熱箱体７００の強度と断熱性能の両方を持たせるようにすれば、真空断熱材４００と外箱７１０との間、あるいは真空断熱材４００と内箱７５０との間には、接着を主目的とする接着剤として硬質ウレタンフォームを使用することができるため、ウレタンの厚さを小さくすることが可能となり、ウレタンの断熱性能の低下を考慮しなくても良くなる。したがって、硬質ウレタンフォームの厚さを薄くすることで壁厚さを小さくして硬質ウレタンの断熱性能が低下しても箱体の断熱性能は真空断熱材４００が担うので問題ない。よって、ウレタンの厚さを小さくして壁厚さを小さくすることで貯蔵室内容積を大きくすることが可能となる。ただし、外箱７１０と真空断熱材４００の間、あるいは内箱７５０と真空断熱材４００との間のいずれか一方には、ホットメルトや両面テープなどの第２の接着剤を使用した方が、壁厚さを薄くできるので、貯蔵室内の容積を大きくできる。   Therefore, in the portion where the vacuum heat insulating material 400 is disposed between the outer box 710 and the inner box 750 such as the concave portion 440 as in the present embodiment, the strength and heat insulation of the heat insulating box 700 by the vacuum heat insulating material 400. If both performances are provided, a rigid urethane foam is used as an adhesive mainly for bonding between the vacuum heat insulating material 400 and the outer box 710 or between the vacuum heat insulating material 400 and the inner box 750. Therefore, it becomes possible to reduce the thickness of the urethane, and it is not necessary to consider the deterioration of the heat insulating performance of the urethane. Therefore, even if the wall thickness is reduced by reducing the thickness of the hard urethane foam and the heat insulation performance of the hard urethane is lowered, there is no problem because the heat insulation performance of the box is borne by the vacuum heat insulating material 400. Therefore, the volume in the storage chamber can be increased by reducing the thickness of the urethane and reducing the wall thickness. However, it is better to use a second adhesive such as hot melt or double-sided tape between the outer box 710 and the vacuum heat insulating material 400 or between the inner box 750 and the vacuum heat insulating material 400, Since the wall thickness can be reduced, the volume in the storage chamber can be increased.

ここで、真空断熱材４００と外箱７１０との間、あるいは真空断熱材４００と内箱７５０との間に使用する接着剤として使用する場合の硬質ウレタンフォームの厚さは、所定値以下あるいは真空断熱材４００の厚さよりも小さくした方が壁厚さを小さくできるので、貯蔵室内の容積を大きくできる。ここで、真空断熱材４００と外箱７１０との間、あるいは真空断熱材４００と内箱７５０との間のどちらか一方に対して接着を主目的として使用する硬質ウレタンフォームの厚さを真空断熱材４００の厚さよりも小さくすれば壁厚さを小さくできる効果が得られるが、真空断熱材４００と外箱７１０の間の硬質ウレタンフォームの厚さと、真空断熱材４００と内箱７５０との間の硬質ウレタンフォームの厚さの合計を、真空断熱材４００の厚さよりも小さくすれば、更に壁厚さを小さくできるので、貯蔵室内の容積を大きくできる。   Here, the thickness of the rigid urethane foam when used as an adhesive used between the vacuum heat insulating material 400 and the outer box 710 or between the vacuum heat insulating material 400 and the inner box 750 is a predetermined value or less or a vacuum. Since the wall thickness can be reduced by reducing the thickness of the heat insulating material 400, the volume in the storage chamber can be increased. Here, the thickness of the rigid urethane foam used mainly for adhesion to either one of the vacuum heat insulating material 400 and the outer box 710 or between the vacuum heat insulating material 400 and the inner box 750 is vacuum heat insulating. If the thickness is smaller than the thickness of the material 400, the effect of reducing the wall thickness can be obtained, but the thickness of the rigid urethane foam between the vacuum heat insulating material 400 and the outer box 710 and the space between the vacuum heat insulating material 400 and the inner box 750 can be obtained. If the total thickness of the hard urethane foam is made smaller than the thickness of the vacuum heat insulating material 400, the wall thickness can be further reduced, so that the volume in the storage chamber can be increased.

本実施の形態では、真空断熱材４００と外箱７１０の間、あるいは真空断熱材４００と内箱７５０との間に使用する接着剤として硬質ウレタンフォームを使用し、ウレタンの厚さを可能な限り薄くしているが、真空断熱材４００と外箱７１０の間、あるいは真空断熱材４００と内箱７５０との間だけでなく、真空断熱材４００が設けられていないウレタンのみが充填される部位（壁内）であっても同じ硬質ウレタンフォームを使用しても良い。真空断熱材４００が設けられていないウレタンのみが充填される部位（たとえば壁内あるいは凸部内の一部）については、真空断熱材４００が存在しないので、真空断熱材４００の厚さ分だけ硬質ウレタンの厚さを大きくできるため、ウレタンの断熱厚さも大きくできる。したがって、真空断熱材４００と外箱７１０との間、あるいは真空断熱材４００と内箱７５０との間に充填されるウレタンの厚さよりも真空断熱材４００が存在しない部位のウレタンの厚さを大きくできるので、真空断熱材４００が配設されている部位のウレタンの密度よりも真空断熱材４００が配設されていない部位のウレタンの密度を小さくできるため、真空断熱材４００が配設されていない部位のウレタンの断熱性能が向上し所定の性能を確保できる。また、真空断熱材４００が配設されていない部位ではウレタンの厚さを大きくできるため、箱体強度も向上する。ここで、本実施の形態では、箱体強度と断熱性能の両方を満足させるため、真空断熱材４００の被覆率（断熱箱体７００、扉の表面積に対する真空断熱材４００の配設面積の比率）あるいは真空断熱材４００の充填率（外箱７１０と内箱７５０との間の空間３１５に対する真空断熱材４００の占める容積比率）を所定値以上に大きくしている。   In the present embodiment, rigid urethane foam is used as an adhesive used between the vacuum heat insulating material 400 and the outer box 710 or between the vacuum heat insulating material 400 and the inner box 750, and the thickness of the urethane is made as much as possible. Although it is thinned, not only between the vacuum heat insulating material 400 and the outer box 710, or between the vacuum heat insulating material 400 and the inner box 750, but also a portion that is filled only with urethane without the vacuum heat insulating material 400 ( Even within the wall), the same rigid urethane foam may be used. Since the vacuum heat insulating material 400 does not exist in a portion (for example, a part in the wall or the convex portion) where only the urethane where the vacuum heat insulating material 400 is not provided is filled, the hard urethane corresponding to the thickness of the vacuum heat insulating material 400 is present. Therefore, the heat insulation thickness of urethane can be increased. Therefore, the thickness of the urethane where the vacuum heat insulating material 400 does not exist is larger than the thickness of the urethane filled between the vacuum heat insulating material 400 and the outer box 710 or between the vacuum heat insulating material 400 and the inner box 750. Since the density of urethane in the portion where the vacuum heat insulating material 400 is not disposed can be made smaller than the density of urethane in the region where the vacuum heat insulating material 400 is disposed, the vacuum heat insulating material 400 is not disposed. The heat insulation performance of the urethane at the site is improved, and the predetermined performance can be secured. Further, since the thickness of the urethane can be increased at a portion where the vacuum heat insulating material 400 is not provided, the box strength is also improved. Here, in this embodiment, in order to satisfy both the box strength and the heat insulating performance, the coverage of the vacuum heat insulating material 400 (the ratio of the area of the vacuum heat insulating material 400 to the heat insulating box 700 and the surface area of the door). Alternatively, the filling rate of the vacuum heat insulating material 400 (the volume ratio of the vacuum heat insulating material 400 to the space 315 between the outer box 710 and the inner box 750) is increased to a predetermined value or more.

本実施の形態では、真空断熱材４００で断熱性能、箱体強度を持たせるようにしているので、ウレタン断熱材の厚さを小さくしてウレタン断熱材の強度を曲げ弾性率が１３．０ＭＰａ以上（好ましくは１５ＭＰａ以上）に大きくしたものを使用可能である。また、ウレタン断熱材の密度についても６０ｋｇ／ｍ３より大きなもの（好ましくは６２ｋｇ／ｍ３以上）を使用することが可能であるので、ウレタンの厚さを低減でき、断熱箱体７００の壁厚さも低減できる。ただし、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加によるウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能悪化、コストＵＰ等の問題が発生する可能性があるので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）は１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 In this embodiment, since the vacuum heat insulating material 400 is provided with heat insulating performance and box strength, the thickness of the urethane heat insulating material is reduced to make the strength of the urethane heat insulating material have a bending elastic modulus of 13.0 MPa or more. A thing enlarged to (preferably 15 MPa or more) can be used. Also, since the density of the urethane heat insulating material can be larger than 60 kg / m 3 (preferably 62 kg / m 3 or more), the thickness of the urethane can be reduced, and the wall thickness of the heat insulating box 700 can be reduced. It can also be reduced. However, if the density of heat insulating material such as urethane (such as rigid urethane foam) is too high, (1) cost increases due to increased urethane injection amount, and (2) urethane leakage occurs due to increased urethane injection pressure. (3) Mold for suppressing deformation of box and box holding member due to increase in foaming pressure at the time of urethane foaming etc. Mold for suppressing box deformation and box holding member for increasing adhesion and adhesive strength between urethane and the like Is difficult to remove from the box (it is difficult to remove from the box), and (4) problems such as deterioration in quality, deterioration in performance, and cost increase may occur, such as rapid deterioration of heat insulation performance due to increased density of urethane. Therefore, the density of the insulating member such as urethane (for example, hard urethane foam) (the density after foaming in the case of the foamed insulating material) is 100 kg / m 3 or less (preferably). Or less than 90 kg / m 3 ).

（凸部に冷気風路）
以上は、凹部４４０（内箱７５０の貯蔵室側空間）を冷気風路７６０として使用する例について説明したが、凸部４５０内（内箱７５０と外箱７１０との間の空間）に冷気風路７６０を設けても良いし、凸部４５０の代わりに冷気風路７６０を別に設けても良い。図７は、本発明の実施の形態１を表す別の冷蔵庫の横断面図で、冷蔵庫１の上下方向に対して垂直な面で冷蔵庫をカットしたときの横断面図である。図７において、図１〜図６と同等部分は同一の符号を付して説明は省略する。 (Cold air path on the convex part)
In the above, an example in which the concave portion 440 (the storage chamber side space of the inner box 750) is used as the cold air passage 760 has been described, but the cold air flows into the convex portion 450 (the space between the inner box 750 and the outer box 710). A path 760 may be provided, or a cool air path 760 may be provided separately instead of the convex portion 450. FIG. 7 is a cross-sectional view of another refrigerator representing the first embodiment of the present invention, and is a cross-sectional view when the refrigerator is cut along a plane perpendicular to the vertical direction of the refrigerator 1. 7, the same parts as those in FIGS. 1 to 6 are denoted by the same reference numerals, and the description thereof is omitted.

図７において、凸部４５０の側面４５２と背面壁７３０とによって凹部４４０が形成されており、背面壁７３０の内面（貯蔵室側）を形成する内箱７５０と背面壁７３０の外面を形成する外箱７１０との間には板状の真空断熱材４００が設けられている。ここで、図示されていないが、側壁７９０の内面（貯蔵室側）を形成する内箱７５０と側壁７９０の外面を形成する外箱７１０との間にも板状の真空断熱材４００が設けられてもよい。凸部４５０に設けられる冷気風路７６０は、意匠性を有するカバー部材である第１風路部品７６２と、第１風路部品７６２の背面側（外箱７１０側）に設けられ、断熱性を有する第２風路部品７６４とから構成され、凸部４５０内に配置されている。このカバー部材である第１風路部品７６２あるいは第２風路部品７６４は、取り付け部（係合部）を有しており、背面壁７３０あるいは側壁７９０に設けられている取り付け部（係合部）に嵌め込みあるいはねじ等の固定部材によって取り付け部同士が係合するなどして、背面壁７３０あるいは側壁７９０に取り付けられる。
ここで、凸部４５０内には冷気風路７６０が形成されており、この凸部４５０は貯蔵室内の背面の幅方向端部側に１つあるいは２つ、あるいは複数設けられている。冷気風路７６０は断面Ｕ字状あるいは断面略矩形状の第２風路部品７６４（あるいは第２風路部品７６４と真空断熱材４００）によって構成され、凸部４５０は第２風路部品７６４とこの第２風路部品７６４の貯蔵室側を覆うように設けられた内箱７５０によって構成される。すなわち、真空断熱材４００と内箱７５０との間には冷気風路７６０が介在している。冷気風路７６０には、貯蔵室内に冷気を供給する冷気供給口７６８が１つあるいは複数設けられている。 In FIG. 7, a concave portion 440 is formed by the side surface 452 of the convex portion 450 and the rear wall 730, and an inner box 750 that forms the inner surface (storage chamber side) of the rear wall 730 and an outer surface that forms the outer surface of the rear wall 730. A plate-like vacuum heat insulating material 400 is provided between the box 710 and the box 710. Here, although not shown, a plate-like vacuum heat insulating material 400 is also provided between the inner box 750 that forms the inner surface (the storage chamber side) of the side wall 790 and the outer box 710 that forms the outer surface of the side wall 790. May be. The cold air path 760 provided in the convex portion 450 is provided on the first air path part 762 that is a cover member having design properties and the back side (outer box 710 side) of the first air path part 762, and has a heat insulation property. The second air passage component 764 is disposed in the convex portion 450. The first air path component 762 or the second air path component 764 as the cover member has an attachment portion (engagement portion), and the attachment portion (engagement portion) provided on the back wall 730 or the side wall 790. ) Or the attachment portions are engaged with each other by a fixing member such as a screw.
Here, a cold air passage 760 is formed in the convex portion 450, and one, two, or a plurality of the convex portions 450 are provided on the side of the rear end in the width direction of the storage chamber. The cold air channel 760 is configured by a second air channel component 764 (or the second air channel component 764 and the vacuum heat insulating material 400) having a U-shaped cross section or a substantially rectangular cross section, and the convex portion 450 is connected to the second air channel component 764. The inner box 750 is provided so as to cover the storage chamber side of the second air passage component 764. That is, a cold air passage 760 is interposed between the vacuum heat insulating material 400 and the inner box 750. The cool air passage 760 is provided with one or a plurality of cool air supply ports 768 for supplying cool air into the storage chamber.

ここで、第２風路部品７６４の断面形状が開口部を有するＵ字状の場合には、開口部が真空断熱材４００側に向くように配置されており、Ｕ字状の開口部を真空断熱材４００が塞ぐことで冷気風路７６０を構成している。ただし、Ｕ字状の開口部は真空断熱材４００側を向くように配置せずに、側壁７９０側、あるいは貯蔵室側を向くように配置して発泡スチロールなどの断熱材でＵ字状の開口部を塞ぐことで冷気風路７６０を構成しても良い。また、第２風路部品７６４を断面の外形形状は矩形状あるいは円状（円管状）あるいは楕円形状であっても良く、内部に冷気風路７６０が形成されていればどのような形状でもかまわないが、円形や楕円形状の方が流路抵抗が少なくて済むので良い。円形よりも幅方向に細長い楕円形状の方が高さを小さくできるので、貯蔵室内への突出高さを小さくできるので、実効容積を大きくでき、使い勝手がよい。第２風路部品７６４の断面の外形形状が矩形状あるいは円状（円管状）あるいは楕円形状のように冷気供給口７６８以外に開口部を有さない形状の場合には、第２風路部品７６４だけで冷気風路７６０を形成しても良い。   Here, when the cross-sectional shape of the second air passage component 764 is U-shaped with an opening, the opening is disposed so as to face the vacuum heat insulating material 400 side, and the U-shaped opening is vacuumed. The cold air path 760 is configured by the heat insulating material 400 being closed. However, the U-shaped opening is not arranged so as to face the vacuum heat insulating material 400 side, but is arranged so as to face the side wall 790 side or the storage chamber side, and the U-shaped opening is made of a heat insulating material such as polystyrene foam. The cold air path 760 may be configured by blocking the air. Further, the outer shape of the cross section of the second air passage component 764 may be a rectangular shape, a circular shape (circular tube shape), or an oval shape, and any shape may be used as long as the cool air air passage 760 is formed inside. However, the circular or elliptical shape may have less flow resistance. Since the height of the oval shape elongated in the width direction can be made smaller than the circular shape, the height of protrusion into the storage chamber can be reduced, so that the effective volume can be increased and the usability is good. In the case where the outer shape of the cross section of the second air passage component 764 has a shape having no opening other than the cold air supply port 768 such as a rectangular shape, a circular shape (circular tube shape), or an elliptical shape, the second air passage component The cold air path 760 may be formed by only 764.

ここで、冷気風路７６０を形成する第２風路部品７６４に所定のねじれ強度や折り曲げ強度を有する断面形状（たとえばＵ字状あるいは断面の外形形状は矩形状あるいは円状（円管状）あるいは楕円形状等）の部材を使用するようにすれば、凸部４５０内に冷気風路７６０を設けることで凸部４５０の強度が向上し、箱体強度を向上させることができる。ただし、第２風路部品７６４に断面Ｕ字状の部材を使用した場合で、箱体のねじれや折り曲げに対して、Ｕ字状の開口部が開いたり狭まったりして強度が不足する可能性がある場合には、第２風路部品７６４の開口部を別部材（たとえば、板状部材や棒状部材やリブ部材など）で開口部が開いたり狭まったりしないように開口部間を接続したり、開口部を塞ぐなどして強度が確保できるようにすれば良い。   Here, the second air passage component 764 forming the cold air passage 760 has a cross-sectional shape having a predetermined torsional strength or bending strength (for example, the U-shape or the cross-sectional outer shape is rectangular, circular (circular tubular), or elliptical. If a member of shape or the like is used, the strength of the convex portion 450 can be improved by providing the cold air passage 760 in the convex portion 450, and the box strength can be improved. However, when a member having a U-shaped cross section is used for the second air path component 764, the U-shaped opening may be opened or narrowed and the strength may be insufficient with respect to twisting or bending of the box. If there is, the openings of the second air path component 764 may be connected between the openings so that the openings are not opened or narrowed by another member (for example, a plate-like member, a rod-like member, or a rib member). The strength may be ensured by closing the opening.

以上のように、本実施の形態では、凸部４５０内に断熱材７０１を充填する代わりに補強部材として機能する冷気風路７６０が設けられている。したがって、本実施の形態では、内箱７５０と外箱７１０から形成され、内箱７５０と外箱７１０との間に真空断熱材４００を備えた断熱箱体や冷蔵庫などの機器において、貯蔵室内の背面に真空断熱材４００を内箱７５０に直接、接着剤等で貼り付けた直接接着部位（図では凹部４４０）と、真空断熱材４００と内箱７５０との間に箱体の強度を向上させる補強部材である冷気風路７６０が介在する補強部材介在部位（凸部４５０）とを備えている。この補強部材介在部位（凸部４５０）は、背面壁７３０と側壁７９０のコーナー部に設けられている。ここで、真空断熱材４００と外箱７１０とは、直接、ホットメルトや両面テープなどの第２の接着剤で貼り付けられている。   As described above, in the present embodiment, the cold air duct 760 that functions as a reinforcing member instead of filling the heat insulating material 701 in the convex portion 450 is provided. Therefore, in the present embodiment, in a device such as a heat insulating box or a refrigerator that is formed of the inner box 750 and the outer box 710 and includes the vacuum heat insulating material 400 between the inner box 750 and the outer box 710, the inside of the storage chamber The strength of the box is improved between the directly bonded portion (recessed portion 440 in the figure) where the vacuum heat insulating material 400 is directly attached to the inner box 750 with an adhesive or the like on the back surface, and the vacuum heat insulating material 400 and the inner box 750. And a reinforcing member interposed portion (convex portion 450) in which a cold air passage 760 as a reinforcing member is interposed. This reinforcing member intervening portion (convex portion 450) is provided at a corner portion of the back wall 730 and the side wall 790. Here, the vacuum heat insulating material 400 and the outer box 710 are directly attached with a second adhesive such as hot melt or double-sided tape.

ここで、真空断熱材４００と内箱７５０との間の第１の介在部材である接着剤としては、自己接着性を有する硬質ウレタンフォームを使用しても良い。接着剤として硬質ウレタンフォームを使用する場合は、断熱材として機能しなくても良いので、接着剤としてウレタンを使用する場合の接着剤厚さは小さくできる。この場合、ウレタンの厚さは真空断熱材４００の厚さよりも小さい方が良く、１１ｍｍ以下程度が良い。接着剤の厚さは薄ければ薄いほど壁厚さを薄くできるので、貯蔵室内の容積を大きくできるので良く、１０ｍｍより小さい方がよく、６ｍｍ以下程度が好ましい。１ｍｍよりも小さいと真空断熱材４００の表面の凹凸により接着できない部位ができてしまうため内箱７５０が真空断熱材４００から剥がれるなどの品質低下が懸念されるので、ウレタンを接着剤として使用する場合には、３ｍｍ以上が好ましい。また、強度確保の点より接着剤として硬質ウレタンフォームを使用する場合には、密度は６０Ｋｇ／ｍ３より大きい方が良い。ここで、箱体強度を向上させるためには、真空断熱材４００に関しては、曲げ弾性率が１３ＭＰａ以上のものを使用した方が良く、また、凸部４５０内に充填される断熱材７０１に関しても曲げ弾性率は１３ＭＰａ以上、密度は６０Ｋｇ／ｍ３より大きい方が良い。ただし、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加によるウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能悪化、コストＵＰ等の問題が発生する可能性があるので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）は１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 Here, as the adhesive which is the first interposed member between the vacuum heat insulating material 400 and the inner box 750, a hard urethane foam having self-adhesiveness may be used. When using hard urethane foam as an adhesive, it does not have to function as a heat insulating material, and therefore the thickness of the adhesive when urethane is used as the adhesive can be reduced. In this case, the thickness of the urethane is preferably smaller than the thickness of the vacuum heat insulating material 400, and is preferably about 11 mm or less. The thinner the adhesive is, the thinner the wall thickness can be, so that the volume in the storage chamber can be increased. The volume is preferably smaller than 10 mm, preferably about 6 mm or less. If it is smaller than 1 mm, a portion that cannot be bonded due to the unevenness of the surface of the vacuum heat insulating material 400 is formed, so there is a concern that the inner box 750 may be peeled off from the vacuum heat insulating material 400. Therefore, when urethane is used as an adhesive Is preferably 3 mm or more. Moreover, when using rigid urethane foam as an adhesive from the point of ensuring strength, the density is preferably larger than 60 kg / m 3 . Here, in order to improve the box strength, it is better to use the vacuum heat insulating material 400 having a bending elastic modulus of 13 MPa or more, and also the heat insulating material 701 filled in the convex portion 450. The flexural modulus is preferably 13 MPa or more, and the density is preferably larger than 60 kg / m 3 . However, if the density of heat insulating material such as urethane (such as rigid urethane foam) is too high, (1) cost increases due to increased urethane injection amount, and (2) urethane leakage occurs due to increased urethane injection pressure. (3) Mold for suppressing deformation of box and box holding member due to increase in foaming pressure at the time of urethane foaming etc. Mold for suppressing box deformation and box holding member for increasing adhesion and adhesive strength between urethane and the like Is difficult to remove from the box (it is difficult to remove from the box), and (4) problems such as deterioration in quality, deterioration in performance, and cost increase may occur, such as rapid deterioration of heat insulation performance due to increased density of urethane. Therefore, the density of the insulating member such as urethane (for example, hard urethane foam) (the density after foaming in the case of the foamed insulating material) is 100 kg / m 3 or less (preferably). Or less than 90 kg / m 3 ).

（凹部を冷気風路として利用（その４））
つぎに、本発明の実施の形態１を表す別の冷蔵庫の構成について図８〜図１０で説明する。図８は本発明の実施の形態１を表す別の冷蔵庫の横断面図で、冷蔵庫１の上下方向に対して垂直な面で冷蔵庫をカットしたときの横断面図である（図４〜図７も同じ）。図９は本発明の実施の形態１を表す冷蔵庫１の前面の開閉扉を除いた場合の冷蔵庫１を正面からみた正面図、図１０は本発明の実施の形態１を示す冷蔵庫１の側断面図である。図８〜１０において、図１〜図７と同等部分は同一の符号を付して説明は省略する。 (Using the recess as a cold air passage (Part 4))
Next, the configuration of another refrigerator representing Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 8 is a cross-sectional view of another refrigerator representing Embodiment 1 of the present invention, and is a cross-sectional view when the refrigerator is cut along a plane perpendicular to the vertical direction of the refrigerator 1 (FIGS. 4 to 7). The same). FIG. 9 is a front view of the refrigerator 1 as viewed from the front when the front opening / closing door of the refrigerator 1 representing Embodiment 1 of the present invention is removed, and FIG. 10 is a side cross-sectional view of the refrigerator 1 illustrating Embodiment 1 of the present invention. FIG. 8 to 10, the same parts as those in FIGS. 1 to 7 are denoted by the same reference numerals and description thereof is omitted.

図８において、凸部４５０が略三角形であり、凸部４５０の側面が斜辺４５６に相当する。凸部４５０は、一端である背面壁側端部７９８が背面壁７３０と接続され、他端である側壁側端部７９７が側壁７９０と接続されている。凸部４５０の側面に相当する斜辺４５６と背面壁７３０とによって凹部４４０が形成されており、背面壁７３０の内面（貯蔵室側）を形成する内箱７５０と背面壁７３０の外面を形成する外箱７１０との間には板状の真空断熱材４００が設けられている。ここで、図示されていないが、側壁７９０の内面（貯蔵室側）を形成する内箱７５０と側壁７９０の外面を形成する外箱７１０との間にも板状の真空断熱材４００が設けられてもよい。背面壁７３０あるいは凹部４４０に設けられる冷気風路７６０は、意匠性を有するカバー部材である第１風路部品７６２と、第１風路部品７６２の背面側（内箱７５０側）に設けられ、断熱性を有する第２風路部品７６４とから構成され、凹部４４０内に配置されている。このカバー部材である第１風路部品７６２あるいは第２風路部品７６４は、取り付け部（係合部）を有しており、凸部４５０あるいは背面壁７３０に設けられている取り付け部（係合部）に嵌め込みあるいはねじ等の固定部材によって取り付け部同士が係合するなどして凸部４５０あるいは背面壁７３０に取り付けられる。
貯蔵室内の背面に凹部４４０が形成されており、凹部４４０の幅方向の一部（たとえば幅方向の略中央部）が冷気風路７６０として利用されている。冷気風路７６０は、冷蔵室２に冷気を供給する冷蔵室用冷気風路５０であってもよく、静電霧化装置（ミスト装置）２００へ冷気を供給したり静電霧化装置２００からのミストを貯蔵室である冷蔵室に冷気とともに供給するための冷気風路として使用される。また、冷気風路７６０は、凹部４４０の略中央部に設けられる第２風路部品７６４と第２風路部品７６４を覆うように設けられるカバーである第１風路部品７６２とから構成され、第１風路部品７６２は、断面形状が開口部を有するＵ字状をしており、前面部７６１と側面部７６７とから構成される。 In FIG. 8, the convex portion 450 is substantially triangular, and the side surface of the convex portion 450 corresponds to the hypotenuse 456. As for the convex part 450, the back wall side edge part 798 which is one end is connected with the back wall 730, and the side wall side edge part 797 which is the other end is connected with the side wall 790. A concave portion 440 is formed by the oblique side 456 corresponding to the side surface of the convex portion 450 and the back wall 730, and an inner box 750 that forms the inner surface (storage chamber side) of the rear wall 730 and an outer surface that forms the outer surface of the rear wall 730. A plate-like vacuum heat insulating material 400 is provided between the box 710 and the box 710. Here, although not shown, a plate-like vacuum heat insulating material 400 is also provided between the inner box 750 that forms the inner surface (the storage chamber side) of the side wall 790 and the outer box 710 that forms the outer surface of the side wall 790. May be. The cold air passage 760 provided in the back wall 730 or the recess 440 is provided on the first air passage component 762 that is a cover member having design properties, and on the back side (inner box 750 side) of the first air passage component 762, The second air passage component 764 having heat insulation properties is disposed in the recess 440. The first air path component 762 or the second air path component 764 as the cover member has an attachment portion (engagement portion), and the attachment portion (engagement) provided on the convex portion 450 or the back wall 730. The mounting portion is attached to the convex portion 450 or the back wall 730 by fitting into the portion) or engaging the mounting portions with a fixing member such as a screw.
A concave portion 440 is formed on the back surface of the storage chamber, and a part of the concave portion 440 in the width direction (for example, a substantially central portion in the width direction) is used as the cool air passage 760. The cold air passage 760 may be a cold air passage 50 for the refrigerator compartment that supplies the cold air to the refrigerator compartment 2, and supplies cold air to the electrostatic atomizer (mist device) 200 or from the electrostatic atomizer 200. The mist is used as a cold air passage for supplying the mist together with cold air to a refrigerating room as a storage room. Further, the cold air passage 760 includes a second air passage component 764 provided at a substantially central portion of the recess 440 and a first air passage component 762 that is a cover provided so as to cover the second air passage component 764. The first air passage component 762 has a U-shaped cross section with an opening, and includes a front surface portion 761 and a side surface portion 767.

第１風路部品（たとえば風路カバー）７６２は、凹部４４０において内箱７５０が貯蔵室側に突出するように設けられた突起部である固定用突起部９１０に少なくとも一部が接触するように側面部が配置されており、側面部あるいは前面部が固定用突起部９１０に固定あるいは保持されている。本実施の形態では、第１風路部品７６２の側面部の内側面が突起部９１０の外側面に少なくとも一部が接触しており、ネジや引っ掛け構造や嵌め込み構造等により第１風路部品７６２が固定あるいは保持されることで冷気風路７６０が形成される。ここで、第１風路部品７６２の形状は、断面Ｕ字形状の場合を示しているが、略半円形状または曲面形状（アーチ形状）または略Ｖ字形状等でもよい。また、第１風路部品７６２は、突起部９１０あるいは貯蔵室を形成する内箱（壁面）７５０あるいは棚８０あるいは仕切壁（たとえば背面壁７３０、側壁７９０、天面壁７４０、底面壁７８０、貯蔵室と貯蔵室との間の仕切壁２４等）等に固定あるいは保持されていれば良く、また冷気風路７６０が形成できれば、どのような形状であっても良い。   First airway component (for example, airway cover) 762 is at least partially in contact with fixing protrusion 910 which is a protrusion provided in recess 440 so that inner box 750 protrudes toward the storage chamber. The side surface portion is disposed, and the side surface portion or the front surface portion is fixed or held by the fixing protrusion 910. In the present embodiment, the inner surface of the side surface portion of the first air passage component 762 is at least partially in contact with the outer surface of the protrusion 910, and the first air passage component 762 is formed by a screw, a hook structure, a fitting structure, or the like. Is fixed or held to form a cold air passage 760. Here, the shape of the first air passage component 762 shows a case of a U-shaped cross section, but may be a substantially semicircular shape, a curved surface shape (arch shape), a substantially V shape, or the like. Further, the first air passage component 762 includes a protrusion 910 or an inner box (wall surface) 750 or a shelf 80 or a partition wall (for example, a rear wall 730, a side wall 790, a top wall 740, a bottom wall 780, a storage chamber) that forms a storage chamber. And any other shape as long as the cool air duct 760 can be formed.

冷気風路７６０は、風量調整手段である冷蔵室ダンパ５５を介して冷却器室１３１と接続されている。冷却器室１３１内に配置されている冷却器１３にて生成された冷気が、冷却器室１３１に配置された冷気循環ファン（庫内ファン）１４によって風路１６、風量調整手段である冷蔵室ダンパ５５を介して冷蔵室用冷気風路５０である冷気風路７６０に運ばれる。冷気風路７６０に運ばれた冷気は、第１風路部品７６２あるいは第２風路部品７６４あるいは固定用の突起部９１０に設けられた冷気供給口７６８より貯蔵室（たとえば冷蔵室２）内に供給される。   The cold air passage 760 is connected to the cooler chamber 131 via a refrigerator compartment damper 55 that is an air volume adjusting means. The cold air generated by the cooler 13 disposed in the cooler chamber 131 is cooled by the cool air circulation fan (internal fan) 14 disposed in the cooler chamber 131, and the refrigerator compartment serving as an air volume adjusting means. It is carried to the cold air path 760 which is the cold air path 50 for the refrigerator compartment through the damper 55. The cold air carried to the cold air passage 760 is supplied into the storage chamber (for example, the refrigerator compartment 2) from the cold air supply port 768 provided in the first air passage component 762, the second air passage component 764, or the fixing projection 910. Supplied.

本実施の形態では、貯蔵室内への冷気供給口（冷気吹出口）７６８は、第１風路部品７６２の前面部、あるいは側面部に１つあるいは複数（少なくとも１つ）設けられている。第２風路部品７６４が設けられている場合には、第２風路部品７６４の前面部、あるいは側面部あるいは背面部に１つあるいは複数（少なくとも１つ）設けられている。図では、冷気供給口７６８が第１風路部品７６２の前面部に第２風路部品７６４の前面部を貫通するように設けられているが、第１風路部品７６２の側面部に第２風路部品７６４の側面部を連通（あるいは貫通）するように冷気供給口７６８を設けるようにすれば、前面部からの冷気供給に加えて貯蔵室内に側方からも冷気を供給できるので、満遍なく効率よく、供給できる。ここで、第１風路部品７６２の冷気供給口と第２風路部品７６４の冷気供給口は同じ位置（連通する位置）に設ける必要はなく、別の位置（連通しない位置）に設けても良い。たとえば、第１風路部品７６２の冷気供給口を前面に設け、第２風路部品の冷気供給口を第１風路部品の冷気供給口の位置と上下方向の高さ位置が異なる部位（前面部、側面部）あるいは同じ高さ位置であっても左右方向が異なる位置（側面部）に設けるようにしても良い。   In the present embodiment, one or a plurality (at least one) of cold air supply ports (cold air outlets) 768 into the storage chamber are provided on the front surface portion or the side surface portion of the first air passage component 762. When the second air path component 764 is provided, one or a plurality (at least one) is provided on the front surface, side surface, or back surface of the second air path component 764. In the drawing, the cold air supply port 768 is provided in the front surface portion of the first air path component 762 so as to penetrate the front surface portion of the second air path component 764. If the cold air supply port 768 is provided so as to communicate (or penetrate) the side surface portion of the air passage component 764, in addition to the cold air supply from the front surface portion, the cold air can be supplied also from the side into the storage chamber, so evenly It can be supplied efficiently. Here, the cold air supply port of the first air passage component 762 and the cold air supply port of the second air passage component 764 do not need to be provided at the same position (communication position), and may be provided at different positions (not communication positions). good. For example, the cold air supply port of the first air passage component 762 is provided on the front surface, and the cold air supply port of the second air passage component is a portion (front surface) whose vertical position is different from the position of the cold air supply port of the first air passage component. Part, side part) or even at the same height position, the left and right direction may be provided at different positions (side part).

第１風路部品７６２の前面部７６１の前面側端面７６９と凹部４４０（貯蔵室背面壁）とは、貯蔵室側（冷蔵庫１の前面方向）に対して高さに差があり、この高さの差分だけ段差（段差部７７５）を有している。この段差部７７５（たとえば冷気風路７６０の外郭を形成する部材である第１風路部品７６２の側面部７６７あるいは突起部９１０）に冷気供給口（開口や切欠きなど）７６８を設けないようにすれば、冷気供給口７６８の開口や切欠きの分だけ第１風路部品７６２の前面側端面７６９（庫内側（貯蔵室側）へ突出する厚さ（高さ））を小さくでき、段差部７７５の庫内側への突出量小さくできる。したがって、段差部７７５が小さくなった分だけ貯蔵室内の奥行き方向長さを大きくでき、貯蔵室内の収納容積を大きくできる。   The front side end surface 769 of the front surface portion 761 of the first air passage component 762 and the recess 440 (storage chamber rear wall) are different in height from the storage chamber side (front direction of the refrigerator 1). There is a level difference (a level difference part 775) corresponding to the difference. A cold air supply port (opening, notch, etc.) 768 is not provided in the stepped portion 775 (for example, the side surface portion 767 or the protruding portion 910 of the first airway component 762 which is a member forming the outline of the cold airway 760). If this is done, the front-side end surface 769 (thickness (height) projecting to the inside (storage room side)) of the first air passage component 762 can be reduced by the amount corresponding to the opening or notch of the cold air supply port 768, and the step portion The amount of protrusion of 775 to the inner side can be reduced. Accordingly, the length in the depth direction in the storage chamber can be increased by the amount that the stepped portion 775 is reduced, and the storage capacity in the storage chamber can be increased.

ここで、突起部９１０は、幅方向に少なくとも２箇所（冷蔵庫１の前面開口からみて右突起部、左突起部）設けられており、左右の突起部９１０の間の空間が第２の凹部４４１を形成しており、第２の凹部４４１は上下方向に溝形状を形成している。この突起部９１０は、凹部４４０を形成する貯蔵室背面の内箱が貯蔵室側に突出することで形成されており、上下方向に渡って連続的、あるいは間欠的に設けられている（たとえば、突起部９１０は、溝形状（第２の凹部４４１）を形成するように上下方向に略平行に少なくとも２箇所設けられている）。ここで、突起部９１０は内箱７５０と別体で形成しても良い。   Here, at least two protrusions 910 are provided in the width direction (right protrusion and left protrusion as viewed from the front opening of the refrigerator 1), and the space between the left and right protrusions 910 is the second recess 441. The second recess 441 forms a groove shape in the vertical direction. The protrusion 910 is formed by the inner box on the back of the storage chamber forming the recess 440 protruding toward the storage chamber, and is provided continuously or intermittently in the vertical direction (for example, The protrusions 910 are provided in at least two locations substantially parallel to the vertical direction so as to form a groove shape (second recess 441). Here, the protrusion 910 may be formed separately from the inner box 750.

そして、第１風路部品７６２の側面部７６７の内面側が第２の凹部４４１を形成する突起部９１０の外面（溝形状を形成する突起部９１０の外側面）に凹凸嵌合や引っ掛け構造やネジ等により保持あるいは固定される。すなわち、凹凸嵌合により保持あるいは固定する凹凸嵌合構造、あるいは突出した引っ掛け部を有し引っ掛け部が凹部あるいは凸部に引っ掛かることにより保持あるいは固定する固定部材（あるいは保持手段）を第１風路部品７６２と突起部９１０に備えることにより第１風路部品７６２が第２の凹部４４１を形成する突起部９１０に固定、あるいは保持される。（たとえば、第１風路部品７６２に引っ掛け部を設け、突起部９１０に引っ掛け部と対向する位置に凹部あるいは凸部を設けることで、第１風路部品７６２を第２の凹部４４１を形成する突起部９１０に軽く押圧するだけの簡単な構成で、第１風路部品７６２が突起部９１０に固定、あるいは保持される。）   Then, the inner surface side of the side surface portion 767 of the first air passage component 762 is fitted to the outer surface of the protrusion 910 that forms the second recess 441 (outer surface of the protrusion 910 that forms the groove shape), a hook structure or a screw. It is held or fixed by etc. That is, the concave / convex fitting structure that is held or fixed by the concave / convex fitting, or the fixing member (or holding means) that has the protruding hook portion and is held or fixed when the hook portion is hooked on the concave portion or the convex portion is the first air passage. By providing the component 762 and the protrusion 910, the first air path component 762 is fixed or held to the protrusion 910 that forms the second recess 441. (For example, the first air passage component 762 is provided with a hook portion, and the projection portion 910 is provided with a concave portion or a convex portion at a position facing the hook portion, whereby the first air passage component 762 is formed with the second concave portion 441. (The first air passage component 762 is fixed to or held by the protrusion 910 with a simple configuration in which the protrusion 910 is lightly pressed.)

本実施の形態では、たとえば上述したように冷蔵庫１の背面の幅方向（左右方向）略中央部に上下方向に設けられた少なくとも２つの突起部９１０と、背面壁７３０の貯蔵室側に形成された第２の凹部（溝形状）４４１と、第１風路部品７６２（たとえばＵ字状をしたＵ字状部材やアーチ状をした曲面部材など）と、で囲まれた空間（冷蔵庫１の幅方向略中央部に上下方向に設けられる空間）が形成されている。この第２の凹部４４１と第１風路部品７６２とで囲まれた空間を冷気風路７６０として使用しても良いが、図に示すように第２の凹部４４１と第１風路部品７６２とで囲まれた空間内に第２風路部品７６４を収納してこの第２風路部品７６４を冷気風路７６０として使用しても良い。ここで、突起部９１０あるいは第１風路部品７６２の側面部７６７は、上下方向に連続している必要はなく、風路が形成できればよく、また、風路内の冷気を貯蔵室（たとえば冷蔵室２等）内に供給できる冷気供給口７６８が形成できれば良い。   In the present embodiment, for example, as described above, at least two projections 910 provided in the vertical direction at the substantially central portion of the back surface of the refrigerator 1 in the width direction (left-right direction) and the storage chamber side of the back wall 730 are formed. The space (the width of the refrigerator 1) surrounded by the second recess (groove shape) 441 and the first air passage component 762 (for example, a U-shaped member having a U shape or a curved member having an arch shape). A space provided in the vertical direction is formed in a substantially central part in the direction. The space surrounded by the second concave portion 441 and the first air passage component 762 may be used as the cold air passage 760. However, as shown in the figure, the second concave portion 441 and the first air passage component 762 The second air passage component 764 may be housed in the space surrounded by, and this second air passage component 764 may be used as the cold air passage 760. Here, the projecting portion 910 or the side surface portion 767 of the first air passage component 762 does not need to be continuous in the vertical direction, as long as the air passage can be formed, and cool air in the air passage can be stored in a storage chamber (for example, refrigeration). It is only necessary to form a cold air supply port 768 that can be supplied into the chamber 2 or the like.

突起部９１０を冷蔵庫１の上下方向に断続的に複数設け、上下方向に断続的に設けられた複数の突起部間の突起の設けられていない突起無し部（たとえば切欠き等によって上下方向の突起部が途切れた切欠き部分）を貯蔵室内への冷気供給口７６８として利用しても良い。この場合、第１風路部品７６２で上下方向に設けられた複数の突起部間の突起なし部（上下方向の突起部が途切れた切欠き部）を塞いで風路を形成しても良いが、第２風路部品７６４を使用して風路を形成しても良い。また、突起部９１０を第１風路部品７６２の固定あるいは保持するための固定部あるいは保持部としてのみに使用しても良い。冷蔵庫１の上下方向に設けられた左右の２つの突起部９１０にて形成される第２の凹部４４１と第１風路部品７６２とで囲まれた空間（冷蔵庫１の上下方向に設けられる空間）を直接冷気風路７６０として使用する場合は、露付き防止や冷気風路７６０内の冷気の温度上昇抑制のため、第１風路部品７６２、あるいは突起部９１０は断熱材など断熱性能を有する部材を使用した方が良い。この場合、突起部９１０は、内箱７５０を突出するように成形して内部にウレタン断熱材を充填するようにすれば良い。   A plurality of protrusions 910 are provided intermittently in the vertical direction of the refrigerator 1 and no protrusions are provided between the plurality of protrusions provided intermittently in the vertical direction (for example, protrusions in the vertical direction by notches or the like). You may utilize the notch part which the part interrupted as the cool air supply port 768 to the storage chamber. In this case, the first air passage component 762 may close the protrusion-free portion between the plurality of protrusion portions provided in the vertical direction (notch portion where the vertical protrusion portion is interrupted) to form the air passage. The second air passage component 764 may be used to form the air passage. Further, the protrusion 910 may be used only as a fixing part or a holding part for fixing or holding the first air passage component 762. A space (space provided in the vertical direction of the refrigerator 1) surrounded by the second recess 441 formed by the left and right two protrusions 910 provided in the vertical direction of the refrigerator 1 and the first air passage component 762 Is directly used as the cold air duct 760, the first air duct component 762 or the protrusion 910 is a member having a heat insulation performance such as a heat insulator in order to prevent dew condensation and to suppress the temperature rise of the cold air in the cold air duct 760. It is better to use In this case, the protrusion 910 may be formed so as to protrude from the inner box 750 and filled with a urethane heat insulating material.

冷蔵庫１の上下方向に設けられた２つの突起部９１０で形成される第２の凹部４４１と第１風路部品７６２とで囲まれた空間（冷蔵庫１の上下方向に設けられる空間）を直接、冷気風路７６０として使用しても良いが、この空間内に、冷気風路７６０を有する第２風路部品７６４を設けても良い。第２風路部品７６４を設けるようにすれば、第２風路部品７６４を発泡スチロール等の断熱材などで形成することが可能となるので、第１風路部品７６２、あるいは突起部９１０に断熱材など断熱性能を有する部材を使用しなくても良くなり、第１風路部品７６２、あるいは突起部９１０の構造が簡略化できる。また、第２風路部品７６４を発泡スチロールや樹脂等の加工が容易な断熱材などで形成することが可能となるので、第２風路部品７６４の断面形状（断面の外形形状）を、円形状あるいは楕円形状あるいは多角形状（たとえば三角形や四角形や六角形等）等の色々な形状に加工あるいは成形できる。また、風路の断面形状においても、風路の流路損失や圧力損失など風路抵抗の小さな形状（たとえば円形や幅方向に細長い楕円形状など）を容易に形成できるため、効率の良い断熱箱体、冷蔵庫、機器が得られる。   A space (a space provided in the vertical direction of the refrigerator 1) surrounded by the second recess 441 formed by the two protrusions 910 provided in the vertical direction of the refrigerator 1 and the first air path component 762 is directly Although it may be used as the cold air passage 760, the second air passage component 764 having the cold air passage 760 may be provided in this space. If the second air path component 764 is provided, the second air path component 764 can be formed of a heat insulating material such as foamed polystyrene. Therefore, the first air path component 762 or the protrusion 910 has a heat insulating material. It is not necessary to use a member having a heat insulation performance such as the first air passage component 762 or the structure of the protrusion 910. Further, since the second air passage component 764 can be formed of a heat insulating material that can be easily processed such as foamed polystyrene or resin, the cross-sectional shape (outer shape of the cross-section) of the second air passage component 764 is circular. Alternatively, it can be processed or formed into various shapes such as an elliptical shape or a polygonal shape (for example, a triangle, a quadrangle, a hexagon, etc.). Also in the cross-sectional shape of the air passage, a shape with a small air passage resistance such as a flow passage loss or pressure loss of the air passage (for example, a circular shape or an elliptical shape elongated in the width direction) can be easily formed, so an efficient heat insulation box Body, refrigerator and equipment are obtained.

第２風路部品７６４は、第１風路部品７６２と、幅方向に２つ（２つ以上でも良い）設けられた突起部９１０に固定あるいは保持された状態で冷蔵庫１の幅方向に設けられた２つの突起部９１０（２つの突起部９１０は長さ方向に、連続してあるいは間欠して設けられている）と内箱７５０とによって形成された第２の凹部４４１と、で囲まれた空間（冷蔵庫１の上下方向に設けられる空間）に配置されている。第２風路部品７６４は、内部に冷気風路７６０を有する風路構造を成しており、第２風路部品７６４の風路の外形断面形状は、円形状あるいは楕円形状あるいは多角形状（たとえば三角形や四角形や六角形等）等の形状であり、内部に冷気風路７６０が形成されている。第２風路部品は、内部に冷気風路７６０が形成できる形状であればどのような形状であっても良い。ここで、第１風路部品９６２あるいは第２風路部品７６４など風路を有する部品の場合の断面形状は、空気あるいは冷気の流れ方向に略直角な方向での断面形状を指す。   The second air path component 764 is provided in the width direction of the refrigerator 1 in a state of being fixed or held by the first air path component 762 and two protrusions 910 provided in the width direction (or two or more). The second protrusion 910 (the two protrusions 910 are provided continuously or intermittently in the length direction) and the second recess 441 formed by the inner box 750. It arrange | positions in the space (space provided in the up-down direction of the refrigerator 1). The second air passage component 764 has an air passage structure having a cold air passage 760 therein, and the outer cross-sectional shape of the air passage of the second air passage component 764 is circular, elliptical, or polygonal (for example, The shape is a triangle, a quadrangle, a hexagon, or the like, and a cold air passage 760 is formed inside. The second air passage component may have any shape as long as the cool air air passage 760 can be formed therein. Here, the cross-sectional shape in the case of a part having an air path such as the first air path part 962 or the second air path part 764 indicates a cross-sectional shape in a direction substantially perpendicular to the flow direction of air or cold air.

ここで、第２風路部品７６４に形成される冷気風路７６０の断面の外形形状は、円形状あるいは楕円形状あるいは多角形状（たとえば三角形や四角形や六角形等）等の形状であり、第２風路部品７６４の断面形状と同等や相似形状であれば良いが、第２風路部品７６４の断面形状と異なっていても良い。すなわち、第２風路部品７６４の断面の外形形状が略四角形の場合、冷気風路７６０の断面の外形形状が略円形状あるいは楕円形状あるいは略三角形形状であっても良く、断面の外形形状が異なっても問題ない。ただし、第２風路部品７６４の風路断面は、空気（冷気）が流れるときの流路抵抗が小さい方が効率が良くなるので、円形や楕円形の方が角型や三角形形状などよりも良い。また、円形よりも幅方向に細長い楕円形状の方が設置時の高さ（貯蔵室内の突出高さ）を小さくできるので貯蔵室内の奥行き寸法を大きくできるので使い勝手が良い。したがって、第２風路部品７６４は、冷気風路を構成できれば良いので、冷気の流れ方向に対する断面形状が角状あるいは楕円状などであって内部に冷気風路７６０が形成できていれば良い。内部の冷気風路７６０の断面形状も角状あるいは楕円状などであっても良い。冷気風路７６０は円形あるいは楕円形状の方が流路抵抗が小さく効率が良く、また、円形よりも幅方向に細長い楕円形状の方が、奥行き方向の長さを小さくできるので、貯蔵室内への突出量を小さくでき、収納容積も大きくできる。（第２風路部品７６４の断面形状、あるいは、冷気風路７６０の断面形状が楕円形状の場合には、幅方向（長軸方向）が奥行き方向（短軸方向）よりも長く形成した方が良い）。ここで、第２風路部品７６４は、２分割、あるいは３分割など、複数分割して組み立てた状態で１つの風路部品を形成した方が加工しやすく、組み立てやすいので、良い。第２風路部品７６４の断面形状、あるいは、風路７６０の断面形状が楕円形状の場合には、第２風路部品７６４を分割する場合、長軸断面で２つに分割した方が加工性、組立性が向上するので良い。   Here, the outer shape of the cross section of the cold air channel 760 formed in the second air channel component 764 is a circular shape, an elliptical shape, a polygonal shape (for example, a triangle, a quadrangle, a hexagon, etc.), or the like. The cross-sectional shape of the air passage component 764 may be the same as or similar to the cross-sectional shape, but may be different from the cross-sectional shape of the second air passage component 764. That is, when the outer shape of the cross section of the second air passage component 764 is substantially square, the outer shape of the cross section of the cool air air passage 760 may be a substantially circular shape, an elliptical shape, or a substantially triangular shape. It doesn't matter if they are different. However, the air passage cross section of the second air passage component 764 is more efficient when the flow resistance when the air (cold air) flows is smaller, so the circular shape or the elliptical shape is better than the square shape or the triangular shape. good. In addition, an elliptical shape that is elongated in the width direction rather than a circle can reduce the height at the time of installation (projection height in the storage chamber), and thus can increase the depth dimension in the storage chamber, which is convenient. Therefore, the second air passage component 764 only needs to be able to form a cold air passage, and it is only necessary that the cross-sectional shape with respect to the flow direction of the cold air is rectangular or elliptical and the cold air passage 760 can be formed inside. The cross-sectional shape of the internal cool air passage 760 may also be rectangular or elliptical. The cold air passage 760 is more efficient when the circular or elliptical shape is smaller in flow resistance, and the elliptical shape elongated in the width direction than the circular shape can reduce the length in the depth direction. The amount of protrusion can be reduced and the storage capacity can be increased. (When the cross-sectional shape of the second air passage component 764 or the cross-sectional shape of the cool air air passage 760 is elliptical, the width direction (major axis direction) should be longer than the depth direction (minor axis direction). good). Here, the second air passage component 764 is easy to process and easy to assemble if one air passage component is formed in a state of being divided into a plurality of parts such as two parts or three parts. When the cross-sectional shape of the second air passage component 764 or the cross-sectional shape of the air passage 760 is an elliptical shape, when the second air passage component 764 is divided, it is better to divide it into two on the long-axis cross section. It is good because the assemblability is improved.

冷却器室１３１内に配置されている熱交換器である冷却器１３で生成された冷気（空気）が冷気風路１６、冷蔵室ダンパ５５などを介してたとえば第２風路部品７６４に形成された冷気風路７６０内を流れて、冷気供給口７６８より貯蔵室内に供給される。ここで、第２の凹部４４１と第１風路部品７６２とで囲まれた空間は冷気風路７６０として使用される。本実施の形態では、冷気風路７６０として使用される空間は、冷蔵庫１の背面の幅方向略中央に上下方向に設けられており、冷蔵庫を正面（前面）からみて冷蔵庫１の幅方向（左右方向）の略中央に１箇所設けられているが、別に１カ所でなくても良く、冷蔵庫１の幅方向（左右方向）に２箇所あるいは複数設けても良い。また、略中央部でなくてもよくい、幅方向の端側に設けても良い。   Cold air (air) generated by the cooler 13, which is a heat exchanger disposed in the cooler chamber 131, is formed in, for example, the second air path component 764 via the cold air duct 16, the refrigerator compartment damper 55, and the like. It flows through the cold air passage 760 and is supplied into the storage chamber from the cold air supply port 768. Here, the space surrounded by the second recess 441 and the first air passage component 762 is used as the cold air passage 760. In the present embodiment, the space used as the cold air passage 760 is provided in the vertical direction at the approximate center in the width direction of the back surface of the refrigerator 1, and the width direction (left and right) of the refrigerator 1 when viewed from the front (front surface). 1 direction is provided at approximately the center of the direction), but it may not be provided separately, or may be provided in the width direction (left-right direction) of the refrigerator 1 or two or more. Moreover, it does not need to be a substantially central part, and may be provided on the end side in the width direction.

冷気風路７６０として使用される空間を２箇所あるいは複数設けるようにして、冷却器室１３１内の熱交換器である冷却器１３で生成された冷気を貯蔵室（たとえば冷蔵室２や野菜室５や切替室４やチルド室２Ｘ、２Ｙなど）に供給する冷気風路と、ミスト装置２００で生成されたミストを貯蔵室（たとえば冷蔵室２や野菜室５や切替室４やチルド室２Ｘ、２Ｙなど）に供給するミスト用風路とを共有せずに区分けして別々に形成しても良い。このように風路を独立させると、風量調整手段などにより冷気の供給（冷気供給のオン、オフ、あるいは冷気量の制御）とミストの供給（ミスト供給のオン、オフ、あるいはミスト供給量の制御）を独立して制御可能となる。もちろん、冷気風路とミスト用風路を共通にしても問題ない。   Two or a plurality of spaces used as the cold air passage 760 are provided, and the cold air generated by the cooler 13 that is a heat exchanger in the cooler chamber 131 is stored in a storage room (for example, the refrigerator room 2 or the vegetable room 5). And a cold air path to be supplied to the switching chamber 4 and the chilled chambers 2X and 2Y and the mist generated by the mist device 200 in the storage chamber (for example, the refrigerated chamber 2, the vegetable chamber 5, the switching chamber 4 and the chilled chambers 2X and 2Y). Etc.) may be divided and formed separately without sharing with the mist air channel to be supplied. When the air passages are made independent in this way, the supply of cold air (cool air supply on / off, or control of the cool air amount) and mist supply (mist supply on / off, or control of the mist supply amount) by the air volume adjusting means or the like. ) Can be controlled independently. Of course, there is no problem even if the cold air passage and the mist air passage are shared.

第２風路部品７６４を設ける場合は、第１風路部品７６２に固定、あるいは保持されるように構成すればよい。あるいは、第２風路部品７６４を突起部９１０や内箱７５０あるいは棚８０や仕切壁２４や壁面（背面壁７３０、天井壁７４０、底面壁７８０など）などに保持あるいは固定できるようにしても良い。第２風路部品７６４を第１風路部品７６２に固定あるいは保持するようにして第１風路部品７６２、第２風路部品７６４を一体に形成して風路組立て体とすることで、容易に断熱箱体７００あるいは冷蔵庫１に取り付けることができ、しかも容易に取り外すことも可能である。ここで、第２風路部品７６４が独立した風路を形成する形状の組立体を構成できれば、第２風路部品７６４が風路組立体を構成することができるので、着脱可能に風路組立体を貯蔵室内（たとえば突起部９１０あるいは凹部４４０あるいは第２の凹部４４１あるいは第１風路部品７６２あるいは内箱７５０あるいは棚８０など）に取り付けることができる。また、冷気風路７６０を真空断熱材４００と対向する内箱７５０（凹部４４０あるいは第２の凹部４４１を形成する部分の内箱）で構成しなくて良くなるので、構造が簡単になり低コストの断熱箱体、冷蔵庫、機器が得られる。   When the second air path component 764 is provided, the second air path component 764 may be configured to be fixed to or held by the first air path component 762. Alternatively, the second air path component 764 may be held or fixed to the protrusion 910, the inner box 750, the shelf 80, the partition wall 24, the wall surface (back wall 730, ceiling wall 740, bottom wall 780, etc.). . The first air passage component 762 and the second air passage component 764 are integrally formed so that the second air passage component 764 is fixed to or held by the first air passage component 762, so that the air passage assembly is easily formed. It can be attached to the heat insulation box 700 or the refrigerator 1 and can be easily removed. Here, if the second air passage component 764 can constitute an assembly having a shape that forms an independent air passage, the second air passage component 764 can constitute the air passage assembly. The three-dimensional object can be mounted in the storage chamber (for example, the protrusion 910, the recess 440, the second recess 441, the first air passage component 762, the inner box 750, the shelf 80, or the like). Further, since the cold air passage 760 does not have to be constituted by the inner box 750 (the inner box of the portion where the concave portion 440 or the second concave portion 441 is formed) facing the vacuum heat insulating material 400, the structure is simplified and the cost is reduced. Heat insulation box, refrigerator, and equipment.

また、第１風路部品７６２あるいは風路組立体（第２風路部品７６４、あるいは第１風路部品７６２と第２風路部品７６４の組立体）を貯蔵室内のたとえば突起部９１０あるいは第１風路部品７６２あるいは棚８０などに取り付けるようにすれば、第１風路部品７６２あるいは風路組立体を真空断熱材４００と対向する位置の内箱７５０（凹部４４０あるいは第２の凹部４４１）に直接取り付ける必要がなくなるので、冷気風路７６０の取付時に内箱７５０が変形したり、あるいはひびが入ったり、あるいは割れ等が発生したりすることを抑制でき、したがって、内箱が真空断熱材４００の外包材などを傷つけることを抑制でき、信頼性が高く断熱性能の低下や劣化の少ない断熱箱体や冷蔵庫や機器が得られる。   Further, the first air passage component 762 or the air passage assembly (the second air passage component 764, or the assembly of the first air passage component 762 and the second air passage component 764), for example, the protrusion 910 or the first air passage in the storage chamber. If attached to the air passage component 762 or the shelf 80, the first air passage component 762 or the air passage assembly is placed in the inner box 750 (the recessed portion 440 or the second recessed portion 441) at a position facing the vacuum heat insulating material 400. Since it is not necessary to attach directly, the inner box 750 can be prevented from being deformed, cracked, cracked, or the like when the cold air duct 760 is attached. It is possible to prevent the outer packaging material from being damaged, and it is possible to obtain a heat insulation box, a refrigerator, or a device that is highly reliable and has little deterioration and deterioration of heat insulation performance.

ここで、冷気風路７６０としては、第１風路部品７６２を凹部４４０あるいは第２の凹部４４１を覆うように設けるようにして形成すれば、第２風路部品７６４を設けなくて冷冷気風路７６０を形成することができるので、部品点数が少なく低コストで組み立て容易で信頼性の高い断熱箱体や冷蔵庫が得られる。この場合、第１風路部品７６２を凸部４５０あるいは棚８０あるいは仕切壁２４、壁面（背面壁７３０あるいは側壁７９０あるいは天井壁７４０あるいは底面壁７８０）などに固定あるいは保持するようにすれば良い。   Here, as the cold air channel 760, if the first air channel component 762 is formed so as to cover the concave portion 440 or the second concave portion 441, the cold air flow is not provided without providing the second air channel component 764. Since the path 760 can be formed, it is possible to obtain a heat-insulated box or a refrigerator that has a small number of parts, is easy to assemble, and is highly reliable. In this case, the first air path component 762 may be fixed or held on the convex portion 450, the shelf 80, the partition wall 24, the wall surface (the back wall 730, the side wall 790, the ceiling wall 740, or the bottom wall 780).

凸部４５０は、冷蔵庫１を正面側（前面側）からみて貯蔵室背面の幅方向のコーナー部（幅方向の左右端部、幅方向の端部）に少なくとも１箇所以上（１箇所あるいは複数箇所）設けられている。箱体のねじれ強度あるいは曲げ強度あるいは圧縮強度などの箱体強度（箱体剛性）を向上させるため、内箱７５０と外箱７１０の間に硬質ウレタンフォームなどの断熱材７０１が充填されて形成されている。凹部４４０あるいは第２の凹部４４１においては、箱体強度は真空断熱材４００の強度を所定値以上（たとえば曲げ弾性率を２０ＭＰａ以上）にすることで持たせるようにしているため、真空断熱材４００と内箱７５０との間には、接着を主目的とする第１介在部材である接着剤（たとえば接着性を有する発泡断熱材など）が充填されており、この第１介在部材である接着剤によって真空断熱材４００と内箱７５０は接着あるいは固定あるいは固着されている。ここで、第１介在部材である接着剤として、硬質ウレタンフォームを使用してもよく、この場合、接着剤として使用するウレタンは、断熱が主目的の断熱材として使用するわけではないのでウレタンの厚さを薄くできる。すなわち、第１介在部材としてウレタンを真空断熱材４００と内箱７５０との間に使用する場合には断熱性能は悪くてもよいので薄くても良く、接着した時に断熱箱体が必要以上に変形や歪まない程度の剛性や強度が得られる接着強度あるいは固定強度を有する所定厚さを有していれば良い。第１介在部材である硬質ウレタンフォームを接着剤として使用する場合の所定厚さは、１１ｍｍ以下程度（たとえば１０ｍｍより小さい）が良く、好ましくは６ｍｍ以下程度が良く、また、接着剤としての接着力（接着性能）を満足できれば薄ければ薄い方が良く１ｍｍ以上、好ましくは３ｍｍ以上程度が良い。   As for the convex part 450 seeing the refrigerator 1 from the front side (front side), it is at least one place (one place or a plurality of places) at the corner part (the left and right end parts in the width direction, the end parts in the width direction) in the width direction on the back of the storage room ) Is provided. In order to improve the box strength (box rigidity) such as the torsional strength, bending strength or compressive strength of the box body, a heat insulating material 701 such as hard urethane foam is filled between the inner box 750 and the outer box 710. ing. In the concave portion 440 or the second concave portion 441, the box body strength is set by setting the strength of the vacuum heat insulating material 400 to a predetermined value or higher (for example, the bending elastic modulus is 20 MPa or higher). Between the inner box 750 and the inner box 750 is filled with an adhesive which is a first interposed member mainly for adhesion (for example, a foamed heat insulating material having adhesiveness). The adhesive which is the first interposed member Thus, the vacuum heat insulating material 400 and the inner box 750 are bonded, fixed, or fixed. Here, a hard urethane foam may be used as the adhesive as the first interposed member. In this case, the urethane used as the adhesive is not used as a heat insulating material whose main purpose is heat insulation. The thickness can be reduced. That is, when urethane is used as the first intervening member between the vacuum heat insulating material 400 and the inner box 750, the heat insulating performance may be poor and may be thin, and the heat insulating box deforms more than necessary when bonded. It is only necessary to have a predetermined thickness having an adhesive strength or a fixing strength that can obtain rigidity and strength that does not cause distortion. The predetermined thickness when the rigid urethane foam as the first intervening member is used as an adhesive is preferably about 11 mm or less (for example, smaller than 10 mm), preferably about 6 mm or less, and adhesive strength as an adhesive. If it can satisfy (adhesion performance), the thinner it is, the better it is, and it is 1 mm or more, preferably 3 mm or more.

図４〜図８では、冷蔵庫１の横断面を示しており、凸部４５０は冷蔵庫１の幅方向両端部に設けられており、貯蔵室内側（冷蔵庫１の前面側）に突出した突出部を形成している。図４〜図７においては、凸部４５０の断面形状（冷蔵庫１の横断面において側壁７９０部分と背面壁部分を除いた突出部の断面形状）は角形（矩形）であるが、図８においては、凸部４５０の断面形状（冷蔵庫１の横断面において側壁７９０と背面壁７３０に対して貯蔵室内側に突出した部分の断面形状）は、略三角形状をしており、三角形の斜辺４５６の一端が側壁７９０内面の所定部位（側壁側端部）７９７に接続され、斜辺４５６の他端が背面壁７３０の内面の所定部位（背面壁側端部）７９８と接続されている。すなわち、略三角形の斜辺４５６は一端が側壁７９０内面の所定部位（側壁側端部）７９７に接続され、他端が背面壁７３０の内面の所定部位（背面壁側端部）７９８と接続されているので、背面壁側端部７９８と側壁側端部７９７を起点とした凸部４５０の斜辺部４５６は庫内側に突出していることになる。すなわち、凸部４５０の断面形状において、略三角形の斜辺４５６に相当する部分は、貯蔵室内の内箱７５０において、側壁７９０の所定部位７９７から背面壁７３０の所定部位７９８に渡って略直線状あるいは曲線状あるいはアーチ状等に形成されている。   4-8, the cross section of the refrigerator 1 is shown, The convex part 450 is provided in the width direction both ends of the refrigerator 1, and the protrusion part which protruded in the storage chamber side (front side of the refrigerator 1) is shown. Forming. 4-7, the cross-sectional shape of the convex part 450 (the cross-sectional shape of the protrusion part excluding the side wall 790 part and the back wall part in the cross section of the refrigerator 1) is a square (rectangle), but in FIG. The cross-sectional shape of the convex portion 450 (the cross-sectional shape of the portion protruding to the storage chamber side with respect to the side wall 790 and the back wall 730 in the cross section of the refrigerator 1) is substantially triangular, and one end of the hypotenuse 456 of the triangle Is connected to a predetermined portion (side wall side end) 797 on the inner surface of the side wall 790, and the other end of the oblique side 456 is connected to a predetermined portion (back wall side end portion) 798 on the inner surface of the back wall 730. That is, the oblique side 456 of the substantially triangular shape has one end connected to a predetermined portion (side wall side end portion) 797 on the inner surface of the side wall 790 and the other end connected to a predetermined portion (back wall side end portion) 798 on the inner surface of the back wall 730. Therefore, the oblique side portion 456 of the convex portion 450 starting from the rear wall side end portion 798 and the side wall side end portion 797 protrudes to the inside of the warehouse. That is, in the cross-sectional shape of the convex portion 450, the portion corresponding to the substantially triangular hypotenuse 456 is substantially linear or extends from the predetermined portion 797 of the side wall 790 to the predetermined portion 798 of the back wall 730 in the inner box 750 in the storage chamber. It is formed in a curved shape or an arch shape.

したがって、凸部４５０の断面形状が略三角形状の場合には、所定の強度が得られるように略三角形状の斜辺４５６の長さを設定すれば良い。凸部４５０の断面形状が角形形状の場合よりも略三角形形状の方が、凸部４５０に角部を有さないため貯蔵室内に突出する容積を小さくすることが可能となり、貯蔵室内の容積を大きくすることが可能となる。また、凸部４５０に角部を有さないので、意匠性も向上する。   Therefore, when the cross-sectional shape of the convex portion 450 is substantially triangular, the length of the substantially triangular hypotenuse 456 may be set so as to obtain a predetermined strength. When the cross-sectional shape of the convex portion 450 is a square shape, the substantially triangular shape has no corner portion in the convex portion 450, so the volume protruding into the storage chamber can be reduced, and the volume in the storage chamber can be reduced. It becomes possible to enlarge. Moreover, since the convex part 450 does not have a corner | angular part, the designability is also improved.

また、本実施の形態では、突起部９１０が溝形状（第２の凹部）４４１を形成するように貯蔵室側（冷蔵庫１の前面側）に突出して貯蔵室内の上下方向に連続的あるいは断続的に複数設けられているので、箱体強度を向上させることが可能となる。ここで、左右の側壁７９０と背面壁７３０とのコーナー部に設けられる左右２箇所の凸部４５０間に設けられる凹部４４０は、凸部が略三角形状の場合には、左右の凸部４５０のそれぞれの斜辺４５６が接続される背面壁の所定部位７９８間の範囲（図８においてＷで表示した部分）となる。   In the present embodiment, the protrusion 910 protrudes toward the storage room (the front side of the refrigerator 1) so as to form a groove shape (second recess) 441, and is continuous or intermittent in the vertical direction in the storage room. Since a plurality of them are provided, the box strength can be improved. Here, the concave portions 440 provided between the left and right convex portions 450 provided at the corner portions of the left and right side walls 790 and the rear wall 730 are formed on the left and right convex portions 450 when the convex portions are substantially triangular. Each of the oblique sides 456 is a range (a portion indicated by W in FIG. 8) between the predetermined portions 798 of the back wall.

図４〜図８では、冷蔵庫１の背面壁７３０内に設けられる真空断熱材４００の左右方向の幅は、貯蔵室（たとえば、冷蔵室２や野菜室５や冷凍室６など）の内壁の幅と略同等（貯蔵室を形成する左右の側壁７９０間の距離（長さ）と略同等）にしており、ウレタン等の充填口７０３、７０４より充填されるウレタンなどの発泡断熱材が側壁７９０内にスムーズに充填できるようにしている。また、内箱７５０と外箱７１０の間の空間３１５にウレタン等の発泡断熱材を充填する充填口７０３、７０４が真空断熱材４００と重ならない（真空断熱材４００が充填口７０３、７０４を塞がない）ようにしており、ウレタン等の発泡断熱材を注入時に真空断熱材４００が充填口７０３、７０４を塞いで発泡断熱材が側壁７９０内や天井壁７４０内や底面壁７８０内や仕切壁２４内へ流入するのを邪魔しないようにしている。   4-8, the width | variety of the left-right direction of the vacuum heat insulating material 400 provided in the back wall 730 of the refrigerator 1 is the width | variety of the inner wall of a storage room (For example, the refrigerator compartment 2, the vegetable compartment 5, the freezer compartment 6, etc.). And the foam insulation such as urethane filled from the filling ports 703 and 704 of urethane or the like inside the side wall 790. (Equivalent to the distance (length) between the left and right side walls 790 forming the storage chamber) So that it can be filled smoothly. Further, the filling ports 703 and 704 for filling the space 315 between the inner box 750 and the outer box 710 with foam heat insulating material such as urethane do not overlap the vacuum heat insulating material 400 (the vacuum heat insulating material 400 blocks the filling ports 703 and 704). The vacuum heat insulating material 400 closes the filling ports 703 and 704 when the foam heat insulating material such as urethane is injected, and the foam heat insulating material is in the side wall 790, the ceiling wall 740, the bottom wall 780, and the partition wall. 24 so as not to obstruct the flow into 24.

また、図４〜図８においては、凸部４５０は箱体強度を維持あるいは向上させるための補強部材としての機能を有するが、パイプ７２０あるいは冷媒配管７２５などを収納する収納部も兼ねている。なお、図８における第２の凹部４４１を形成する突起部９１０をパイプ７２０あるいは冷媒配管７２５などを収納する収納部に使用しても良いし、発泡断熱材などを充填して補強部材として使用してもよい。凸部４５０あるいは突起部９１０の一方をパイプ７２０あるいは冷媒配管７２５などを収納する収納部として使用しても良いし、凸部４５０と突起部９１０の両方をパイプ７２０あるいは冷媒配管７２５などを収納する収納部として使用しても良い。このように凸部４５０あるいは突起部９１０をパイプ７２０あるいは冷媒配管７２５などを収納する収納部に使用したり、あるいは箱体補強部として使用すれば、別途、パイプ７２０あるいは冷媒配管７２５などを収納する収納部を設ける必要がなくなり、構造が簡単で低コストで高強度の断熱箱体、冷蔵庫、機器などが得られる。   4 to 8, the convex portion 450 has a function as a reinforcing member for maintaining or improving the box strength, but also serves as a storage portion for storing the pipe 720, the refrigerant pipe 725, and the like. Note that the protrusion 910 forming the second recess 441 in FIG. 8 may be used as a storage portion for storing the pipe 720 or the refrigerant pipe 725, or may be used as a reinforcing member by filling with a foam heat insulating material or the like. May be. One of the convex portion 450 or the protruding portion 910 may be used as a storage portion that stores the pipe 720 or the refrigerant pipe 725, or both the convex portion 450 and the protruding portion 910 store the pipe 720 or the refrigerant pipe 725. You may use as a storage part. In this way, if the convex portion 450 or the protruding portion 910 is used as a storage portion for storing the pipe 720 or the refrigerant pipe 725 or is used as a box reinforcing portion, the pipe 720 or the refrigerant pipe 725 is separately stored. There is no need to provide a storage portion, and a heat insulating box, refrigerator, equipment, etc. with a simple structure, low cost and high strength can be obtained.

凸部４５０は、貯蔵室背面の幅方向の端側のコーナー部（片側コーナーあるいは両側コーナー）に設けられている。凸部４５０は、貯蔵室の幅方向に対して一端が貯蔵室を形成する側壁７９０の所定部位（側壁奥行き方向端部７９７）に接続され、幅方向の他端が真空断熱材４００と幅方向に所定長さＸだけ重なる位置の背面壁７３０の所定部位（背面壁幅方向端部７９８）に接続されており、内部に硬質ウレタン等の発泡断熱材が充填されている。このように凸部４５０を真空断熱材４００の幅方向において一部が重なる位置（重なり長さＸの位置）まで延設することで、真空断熱材４００が凸部４５０内のウレタンを介して側壁７９０内のウレタンと一体に形成され、側壁７９０と背面壁７３０とが真空断熱材４００、硬質ウレタンとともに一体に強固に形成され、断熱箱体７００の強度が向上する。この場合、側壁７９０内に充填する硬質ウレタンフォームを真空断熱材４００と内箱７５０との間の空間にも充填させて発泡させれば容易に対応可能である。ここで、凸部４５０はコーナー部に設けられており、断面形状が角形や矩形や略三角形状や円弧状やアーチ状で貯蔵室内に突出するように内箱７５０が成形され、この凸部４５０が形成される内箱７５０と外箱７１０との間に硬質ウレタンフォームなどを充填あるいは設置することで補強部材として凸部４５０が形成される。ここで、外箱７１０と内箱７５０の間の空間に充填されるウレタン等の充填材は、真空断熱材４００が設けられている部分と設けられていない部分の断熱箱体７００の断熱性能、内箱７５０と真空断熱材４００と外箱７１０の接着強度、断熱箱体７００の強度（剛性）などを考慮して決められ、本実施の形態では、硬質ウレタンフォームを充填材として使用している。   The convex portion 450 is provided at a corner portion (one side corner or both side corners) on the end side in the width direction on the back surface of the storage chamber. One end of the convex portion 450 is connected to a predetermined portion (side wall depth direction end portion 797) of the side wall 790 forming the storage chamber with respect to the width direction of the storage chamber, and the other end in the width direction is connected to the vacuum heat insulating material 400 in the width direction. Is connected to a predetermined portion (back wall width direction end 798) of the back wall 730 at a position that overlaps with a predetermined length X, and is filled with a foam heat insulating material such as hard urethane. Thus, by extending the convex part 450 to a position where a part thereof overlaps in the width direction of the vacuum heat insulating material 400 (position of the overlapping length X), the vacuum heat insulating material 400 has a side wall via urethane in the convex part 450. The side wall 790 and the back wall 730 are integrally formed with the vacuum heat insulating material 400 and the hard urethane, and the strength of the heat insulating box 700 is improved. In this case, it can be easily handled by filling the space between the vacuum heat insulating material 400 and the inner box 750 and foaming the hard urethane foam filled in the side wall 790. Here, the convex portion 450 is provided at the corner portion, and the inner box 750 is formed so that the cross-sectional shape is a square shape, a rectangular shape, a substantially triangular shape, an arc shape, or an arch shape, and protrudes into the storage chamber. A convex portion 450 is formed as a reinforcing member by filling or installing a hard urethane foam or the like between the inner box 750 and the outer box 710 where the outer casing 710 is formed. Here, the filler such as urethane filled in the space between the outer box 710 and the inner box 750 is the heat insulating performance of the heat insulating box 700 of the portion where the vacuum heat insulating material 400 is provided and the portion where it is not provided, It is determined in consideration of the adhesive strength of the inner box 750, the vacuum heat insulating material 400 and the outer box 710, the strength (rigidity) of the heat insulating box 700, etc. In this embodiment, rigid urethane foam is used as the filler. .

強度部（補強部）である凸部４５０の背面壁７３０側の一端が、真空断熱材４００と所定長さ（重なり長さ）Ｘだけ重なるように設けているので、凸部４５０内に充填された硬質ウレタンフォームによって、真空断熱材４００と内箱７５０が強固に接着され、真空断熱材４００がウレタンを介して側壁７９０とも強固に接続される。また、貯蔵室背面の幅方向のコーナー部に貯蔵室内に突出する凸部４５０が形成されるので、真空断熱材４００の配置されている凹部４４０の硬質ウレタンフォームの厚さが薄くなっても、断熱性能の低下が抑制され、また凸部４５０及び真空断熱材４００によって箱体強度が向上する。また、真空断熱材４００の配置されていない壁面（たとえば側壁７９０や仕切壁２４など）においても、真空断熱材の配設面積や配設容積を大きく（真空断熱材の被覆率や充填率を大きく）することによって、真空断熱材４００の配置されていない壁面を含めた断熱箱体としての断熱性能も確保できる。また、凸部４５０が真空断熱材４００と幅方向で重なる位置まで延設されているので、真空断熱材４００、側壁７９０、背面壁の凹部（４４０、４４１）とが一体に形成（あるいは成形）でき、箱体強度が向上する。   Since one end on the back wall 730 side of the convex portion 450 which is a strength portion (reinforcing portion) is provided so as to overlap the vacuum heat insulating material 400 by a predetermined length (overlap length) X, the convex portion 450 is filled. The vacuum heat insulating material 400 and the inner box 750 are firmly bonded by the hard urethane foam, and the vacuum heat insulating material 400 is also firmly connected to the side wall 790 through urethane. In addition, since the convex portion 450 protruding into the storage chamber is formed at the corner portion in the width direction on the back of the storage chamber, even if the thickness of the hard urethane foam of the concave portion 440 in which the vacuum heat insulating material 400 is disposed becomes thin, The deterioration of the heat insulation performance is suppressed, and the box strength is improved by the convex portion 450 and the vacuum heat insulating material 400. Further, even on the wall surface where the vacuum heat insulating material 400 is not disposed (for example, the side wall 790 and the partition wall 24), the area and volume of the vacuum heat insulating material are increased (the coverage and filling rate of the vacuum heat insulating material are increased). ), The heat insulating performance as a heat insulating box including the wall surface where the vacuum heat insulating material 400 is not arranged can be secured. Moreover, since the convex part 450 is extended to the position which overlaps with the vacuum heat insulating material 400 in the width direction, the vacuum heat insulating material 400, the side wall 790, and the concave portions (440, 441) on the back wall are integrally formed (or molded). And the box strength is improved.

また、凸部４５０内には、制御配線や電力線等のリード線が収納されるパイプ７２０や冷媒配管７２５を配置しても良く、この場合には、凸部４５０による箱体強度向上に加えて、パイプ７２０や冷媒配管７２５も箱体強度の向上のための補強部材として活用できる。したがって、箱体強度向上のために別途補強部品が不要となるので低コストであり、しかも断熱箱体７００の補強が行えるので断熱箱体の箱体強度が向上できる。また、補強部材を凸部４５０内に配置できるため、意匠性も向上する。したがって、低コストで信頼性の高く意匠性の優れた断熱箱体、冷蔵庫が得られる。   In addition, a pipe 720 or a refrigerant pipe 725 for storing a lead wire such as a control wiring or a power line may be disposed in the convex portion 450. In this case, in addition to the improvement in the box strength by the convex portion 450, The pipe 720 and the refrigerant pipe 725 can also be used as reinforcing members for improving the box strength. Accordingly, a separate reinforcing component is not required for improving the box strength, so that the cost is low and the heat insulating box 700 can be reinforced, and the box strength of the heat insulating box can be improved. In addition, since the reinforcing member can be disposed in the convex portion 450, the design is improved. Therefore, it is possible to obtain a heat-insulated box body and a refrigerator that are low in cost and highly reliable and excellent in design.

ここで、凸部４５０が真空断熱材４００と重なる幅方向の所定長さＸは、長いほど凸部４５０内の硬質ウレタンと真空断熱材４００とが固着（あるいは保持）できる長さ（あるいは固着面積）が大きくなり箱体強度を向上させることができるが、長すぎると凸部４５０の貯蔵室内への突出量（貯蔵室内に突出する体積）が大きくなり、貯蔵室内の容量が小さくなるので、２００ｍｍ以下好ましくは１８０ｍｍ以下が良い。また、凸部４５０が真空断熱材４００と重なる幅方向の所定長さＸが短かすぎると、真空断熱材４００と凸部４５０内の硬質ウレタンとの固着力が小さくなり箱体の強度が低下するし、また、硬質ウレタンなどの充填材の真空断熱材４００に対する重なる長さＸが３０ｍｍよりも短くなると真空断熱材４００の表面を伝って熱漏洩が大きくなる。すなわち、硬質ウレタンなどの充填材が真空断熱材４００に対して重なる部分の長さＸが３０ｍｍよりも短くなると、真空断熱材４００の内箱７５０側（貯蔵室側）の表面から外箱７１０側（背面側）の表面へのヒートブリッジによる熱漏洩が大きくなり断熱性能が低下するので、３０ｍｍ以上好ましく４０ｍｍ以上が良い。したがって、真空断熱材４００と凸部４５０の重なる長さＸは、下限は３０ｍｍ以上（好ましくは４０ｍｍ以上）が良く、上限は２００ｍｍ以下（好ましくは１８０ｍｍ以下）が好ましく、断熱箱体７００の側壁７９０間距離（貯蔵室内面壁７９１、７９２間の距離）の１／３以下程度が良い。（冷蔵庫１の外幅が約６００ｍｍとした場合、側壁７９０の厚さを３０ｍｍとすると、側壁７９０の内面壁間距離は約５４０ｍｍとなるので、重なる長さＸは５４０ｍｍの１／３以下、すなわち１８０ｍｍ以下程度が良い。）   Here, the predetermined length X in the width direction in which the convex portion 450 overlaps the vacuum heat insulating material 400 is a length (or a fixing area) at which the hard urethane in the convex portion 450 and the vacuum heat insulating material 400 can be fixed (or held) as the length becomes longer. ) Increases and the box strength can be improved. However, if the length is too long, the protruding amount of the convex portion 450 into the storage chamber (the volume protruding into the storage chamber) increases, and the capacity in the storage chamber decreases, so that the capacity of the storage chamber decreases. The thickness is preferably 180 mm or less. In addition, if the predetermined length X in the width direction in which the convex portion 450 overlaps the vacuum heat insulating material 400 is too short, the fixing force between the vacuum heat insulating material 400 and the hard urethane in the convex portion 450 becomes small, and the strength of the box body decreases. In addition, when the length X of the filler such as hard urethane overlapping the vacuum heat insulating material 400 is shorter than 30 mm, heat leakage increases along the surface of the vacuum heat insulating material 400. That is, when the length X of the portion where the filler such as hard urethane overlaps with the vacuum heat insulating material 400 is shorter than 30 mm, the surface on the inner box 750 side (storage chamber side) of the vacuum heat insulating material 400 is closer to the outer box 710 side. Heat leakage due to the heat bridge to the surface on the (back side) becomes large and the heat insulation performance deteriorates, so 30 mm or more, preferably 40 mm or more is good. Therefore, the length X of the overlap of the vacuum heat insulating material 400 and the convex portion 450 is preferably 30 mm or more (preferably 40 mm or more), the upper limit is preferably 200 mm or less (preferably 180 mm or less), and the side wall 790 of the heat insulating box 700 is. About 1/3 or less of the inter-distance (distance between the storage chamber inner walls 791 and 792) is preferable. (When the outer width of the refrigerator 1 is about 600 mm, if the thickness of the side wall 790 is 30 mm, the distance between the inner walls of the side wall 790 is about 540 mm, so the overlapping length X is 1/3 or less of 540 mm 180mm or less is good.)

本実施の形態では、真空断熱材４００を背面壁に配置した例で説明しているが、側壁７９０に配置しても良く、真空断熱材４００を背面壁と側壁７９０の両方に配置してもよい。この場合は、側壁側も、背面壁側と同様の理由から、真空断熱材４００と凸部４５０の重なる長さは、下限は３０ｍｍ以上（好ましくは４０ｍｍ以上）が良く、上限は２００ｍｍ以下（好ましくは１８０ｍｍ以下）が好ましい。（真空断熱材４００と凸部４５０の重なる長さは、真空断熱材４００の幅に対して第１の所定値（たとえば３０ｍｍ好ましくは４０ｍｍ）以上第２の所定値（たとえば真空断熱材４００の幅の１／３程度）以下が望ましい。第１の所定値が３０ｍｍより小さいと、硬質ウレタンなどの充填材が真空断熱材４００に対して重なる部分の長さＸが短くなり、真空断熱材４００の内箱側（貯蔵室側）の表面から外箱側（背面側）の表面へのヒートブリッジによる熱漏洩が大きくなり断熱性能が低下するし、凸部と真空断熱材４００との重なる長さが短くなりすぎて箱体の強度が低下するので、第１の所定値は３０ｍｍ以上（好ましくは４０ｍｍ以上）が好ましい。また、第２の所定値が真空断熱材４００の幅の１／３を越えると凹部４４０あるいは第２の凹部４４１の幅が小さくなり、冷気風路７６０が所定の大きさを確保できなくなるので、第２の所定値は１／３以下が良い。）   In this embodiment, an example in which the vacuum heat insulating material 400 is disposed on the back wall is described. However, the vacuum heat insulating material 400 may be disposed on the side wall 790, or the vacuum heat insulating material 400 may be disposed on both the back wall and the side wall 790. Good. In this case, for the same reason as the back wall side, the length of the overlap between the vacuum heat insulating material 400 and the convex portion 450 is preferably 30 mm or more (preferably 40 mm or more), and the upper limit is 200 mm or less (preferably). Is preferably 180 mm or less. (The overlapping length of the vacuum heat insulating material 400 and the convex portion 450 is a first predetermined value (for example, 30 mm, preferably 40 mm) or more with respect to the width of the vacuum heat insulating material 400 and a second predetermined value (for example, the width of the vacuum heat insulating material 400). If the first predetermined value is smaller than 30 mm, the length X of the portion where the filler such as hard urethane overlaps the vacuum heat insulating material 400 is shortened. Heat leakage due to the heat bridge from the inner box side (storage chamber side) surface to the outer box side (back side) surface increases and the heat insulation performance decreases, and the length of overlap between the convex portion and the vacuum heat insulating material 400 is The first predetermined value is preferably 30 mm or more (preferably 40 mm or more) because the strength of the box body is lowered due to being too short, and the second predetermined value exceeds 1/3 of the width of the vacuum heat insulating material 400. And recess 440 or The width of the second recess 441 is reduced, since the cold air duct 760 can not be secured a predetermined magnitude, the second predetermined value less than 1/3 better.)

ここで、真空断熱材４００を天井壁７４０あるいは底面壁７８０あるいは貯蔵室間を仕切る仕切壁２４に配置してコーナー部に凸部４５０を設けても良い。背面壁７３０と天井壁７４０のコーナー部に形成される凸部と真空断熱材４００との重なる長さ、あるいは背面壁７３０と底面壁７８０とのコーナー部に形成される凸部と真空断熱材４００との重なる長さ、あるいは背面壁７３０と仕切壁２４とのコーナー部に形成される凸部との重なる長さ、あるいは側壁７９０と天井壁７４０とのコーナー部に形成される凸部と真空断熱材４００との重なる長さも、上記と同様に下限は３０ｍｍ以上（好ましくは４０ｍｍ以上）が良く、上限は２００ｍｍ以下（好ましくは１８０ｍｍ以下）が好ましい。   Here, the vacuum heat insulating material 400 may be disposed on the ceiling wall 740, the bottom wall 780, or the partition wall 24 that partitions the storage chambers, and the convex portions 450 may be provided at the corner portions. The length of the convex portion formed at the corner portion of the back wall 730 and the ceiling wall 740 and the vacuum heat insulating material 400 or the convex portion formed at the corner portion of the back wall 730 and the bottom wall 780 and the vacuum heat insulating material 400. Or a length overlapping with a convex portion formed at a corner portion of the back wall 730 and the partition wall 24, or a convex portion formed at a corner portion between the side wall 790 and the ceiling wall 740 and vacuum insulation. Similarly to the above, the length overlapping with the material 400 is preferably 30 mm or more (preferably 40 mm or more), and the upper limit is preferably 200 mm or less (preferably 180 mm or less).

以上のように、強度部である凸部４５０の一端が真空断熱材４００に重なる部分の幅方向の長さＸを所定範囲内に設定しているので、箱体強度と断熱性能を損なうことなく左右の凸部４５０間に形成される凹部４４０、あるいは凸部４５０と第２の凹部との間に形成される空間７７０（突起部９１０と凸部４５０との間の空間７７０）を大きくできる。したがって、所定の箱体強度及び所定の断熱性能を確保した上で、庫内容積を増大でき、食品などの貯蔵品収納空間である空間７７０を大きくできるので、貯蔵室内の収納容積を大きくでき、ユーザにとって使い勝手の良い冷蔵庫、機器が得られる。   As described above, since the length X in the width direction of the portion where the one end of the convex portion 450 that is the strength portion overlaps the vacuum heat insulating material 400 is set within a predetermined range, the box strength and heat insulation performance are not impaired. The concave portion 440 formed between the left and right convex portions 450 or the space 770 formed between the convex portion 450 and the second concave portion (the space 770 between the protruding portion 910 and the convex portion 450) can be increased. Therefore, after ensuring the predetermined box strength and the predetermined heat insulation performance, the internal volume can be increased, and the space 770 that is a storage space for stored items such as food can be increased, so that the storage volume in the storage chamber can be increased, A user-friendly refrigerator and equipment can be obtained.

本実施の形態では、貯蔵室前面の開閉ドア（たとえば冷蔵室扉７）内にも真空断熱材４００が設けられており、扉外郭を形成する扉内板と扉外板に対して接着剤にて直接、真空断熱材４００が貼り付けられている。この場合、接着剤として硬質ウレタンを使用してもよい。この場合は、ウレタンは、断熱材として使用されるわけではないので断熱性能が悪くてもよく、接着した時に所定の接着強度を有する所定厚さを有していれば良い。接着剤としての所定厚さは、１１ｍｍ以下程度、好ましくは６ｍｍ以下程度が良く、また、接着剤としての接着力（接着性能）を満足できれば薄ければ薄い方が良く１ｍｍ以上、好ましくは３ｍｍ以上程度が良い。ここで、冷蔵室扉７の強度（ねじれ強度、曲げ強度など）は真空断熱材４００の強度（剛性）で確保しているので、従来のように発泡断熱材で扉強度を確保する必要がないため、接着材にウレタンを使用する場合でも上述したように接着剤として所定厚さ分だけ確保できれば良いので、扉の厚さを薄くできる。したがって、その分、庫内容積を大きくできる。ここで、冷蔵室扉７などの貯蔵室扉７、８、９、１０、１１の前面にガラス面材を設け、ガラス面材と真空断熱材との間に介在部材として接着剤（たとえば硬質ウレタンフォーム）を使用する場合であっても、接着剤としての所定厚さは、１１ｍｍ以下程度（たとえば１０ｍｍより小さい方が良い）、好ましくは６ｍｍ以下程度が良く、また、接着剤としての接着力（接着性能）を満足できれば薄ければ薄い方が良く１ｍｍ以上、好ましくは３ｍｍ以上程度が良い。   In this embodiment, the vacuum heat insulating material 400 is also provided in the open / close door (for example, the refrigerator compartment door 7) on the front surface of the storage room, and is used as an adhesive to the door inner plate and the door outer plate that form the door shell. The vacuum heat insulating material 400 is directly attached. In this case, hard urethane may be used as an adhesive. In this case, since urethane is not used as a heat insulating material, the heat insulating performance may be poor, and it is only necessary to have a predetermined thickness having a predetermined adhesive strength when bonded. The predetermined thickness as the adhesive is about 11 mm or less, preferably about 6 mm or less. If the adhesive strength (adhesion performance) as the adhesive can be satisfied, the thickness is preferably 1 mm or more, preferably 3 mm or more. Good degree. Here, since the strength (torsional strength, bending strength, etc.) of the refrigerator compartment door 7 is ensured by the strength (rigidity) of the vacuum heat insulating material 400, it is not necessary to secure the door strength with the foam heat insulating material as in the conventional case. For this reason, even when urethane is used as the adhesive, it is only necessary to secure a predetermined thickness as an adhesive as described above, and thus the thickness of the door can be reduced. Therefore, the internal volume can be increased accordingly. Here, a glass face material is provided in front of the storage room doors 7, 8, 9, 10, 11 such as the refrigerator door 7, and an adhesive (for example, hard urethane) is interposed between the glass face material and the vacuum heat insulating material. Even when a foam is used, the predetermined thickness as the adhesive is about 11 mm or less (for example, smaller than 10 mm is preferable), preferably about 6 mm or less, and the adhesive strength ( If it can satisfy (adhesion performance), the thinner it is, the better it is, and it is 1 mm or more, preferably about 3 mm or more.

ここで、図４〜図７の場合と同様に、少なくとも貯蔵室内の背面の一部あるいは第２の凹部４４１を覆うカバー部材である第１風路部品７６２は、冷気風路７６０の少なくとも一部を形成あるいは冷気風路７６０の少なくとも一部を覆う風路カバー部と、風路カバー部から幅方向（左右方向あるいは側壁７９０方向）に延出し背面壁７３０あるいは凹部４４０の少なくとも一部を覆う背面カバー部と、背面カバー部に接続あるいは背面カバー部に一体に形成されて側壁７９０の少なくとも一部を覆う側面カバー部と、を備えるようにしてもよい。そして、背面カバー部を背面壁７３０あるいは凹部４４０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。あるいは、側面カバー部を側壁７９０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。このようにすると、カバーである第１風路部品７６２によって、背面壁７３０や側壁７９０や凸部４５０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   Here, as in the case of FIGS. 4 to 7, the first air path component 762 that is a cover member that covers at least a part of the back surface of the storage chamber or the second recess 441 is at least a part of the cold air path 760. Or a back surface covering at least a part of the back wall 730 or the recess 440 extending in the width direction (left-right direction or side wall 790 direction) from the air path cover part. You may make it provide a cover part and a side cover part which is connected to a back cover part, or is integrally formed in a back cover part, and covers at least one part of the side wall 790. And you may make it attach a back cover part to the inner box 750 which forms the back wall 730, the recessed part 440, or the convex part 450 by fixing or hold | maintaining. Alternatively, the side cover portion may be attached by being fixed or held on the inner box 750 forming the side wall 790 or the convex portion 450. If it does in this way, since at least one part of the back wall 730, the side wall 790, and the convex part 450 can be covered with the 1st air path component 762 which is a cover, design property improves and assembly property also improves.

また、少なくとも貯蔵室内の背面の一部を覆うカバー部材である第１風路部品７６２は、冷気風路７６０の少なくとも一部を形成あるいは冷気風路７６０の少なくとも一部を覆う風路カバー部と、風路カバー部から幅方向（左右方向あるいは側壁７９０方向）に延出し背面壁７３０あるいは凹部４４０の少なくとも一部を覆う背面カバー部と、風路カバー部と接続あるいは風路カバー部と一体に形成されて背面壁７３０の上下方向に設けられる仕切壁２４（天井壁７４０あるいは底面壁７８０を含む）の少なくとも一部を覆うように背面壁７３０の上端部あるいは下端部から前方に延出して設けられる上下壁カバー部と、を備えるようにしてもよい。そして、背面カバー部を背面壁７３０あるいは凹部４４０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。あるいは、上下壁カバー部を背面壁７３０の上下方向に設けられる仕切壁２４（天井壁７４０あるいは底面壁７８０を含む）を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにしても良い。このようにすると、カバーである第１風路部品７６２によって、背面壁７３０や仕切壁２４や天井壁７３０や底面壁７８０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   The first air passage component 762 that is a cover member that covers at least a part of the back surface of the storage chamber includes an air passage cover portion that forms at least a part of the cold air passage 760 or covers at least a part of the cold air passage 760. A rear cover portion extending in the width direction (left-right direction or side wall 790 direction) from the air passage cover portion and covering at least a part of the rear wall 730 or the recess 440; and connected to the air passage cover portion or integrally with the air passage cover portion Provided to extend forward from the upper end or lower end of the back wall 730 so as to cover at least part of the partition wall 24 (including the ceiling wall 740 or the bottom wall 780) that is formed and provided in the vertical direction of the back wall 730. And an upper and lower wall cover portion to be provided. And you may make it attach a back cover part to the inner box 750 which forms the back wall 730, the recessed part 440, or the convex part 450 by fixing or hold | maintaining. Alternatively, the upper and lower wall cover portions may be attached to the inner box 750 that forms the partition wall 24 (including the ceiling wall 740 or the bottom wall 780) provided in the vertical direction of the back wall 730. . In this way, at least a part of the back wall 730, the partition wall 24, the ceiling wall 730, and the bottom wall 780 can be covered by the first air passage component 762 that is a cover. Will also improve.

図９、図１０において、冷蔵庫１は最上段に観音開き式（あるいは開閉式）の貯蔵室である冷蔵室２を備えている。冷蔵室２の下には貯蔵室である製氷室３及び切替室４が左右に並列に配設されている。冷蔵庫１の最下段には貯蔵室である野菜室５を備え、野菜室５の上には貯蔵室である冷凍室６を備えている。この冷凍室６は、左右に並列に配設された製氷室３と切替室４の下方で、野菜室５の上方に設けられており、いわゆる野菜室５と左右に並列に配設された製氷室３及び切替室４との間に冷凍室６が配設されるミッドフリーザータイプの貯蔵室配置となっている。   9 and 10, the refrigerator 1 is provided with a refrigerator compartment 2 which is a double-folded (or openable) storage room at the top. Below the refrigerator compartment 2, an ice making room 3 and a switching room 4 which are storage rooms are arranged in parallel on the left and right. The bottom of the refrigerator 1 is provided with a vegetable room 5 as a storage room, and a freezing room 6 as a storage room is provided above the vegetable room 5. The freezer compartment 6 is provided above the vegetable compartment 5 below the ice making compartment 3 and the switching compartment 4 arranged in parallel on the left and right, and the ice making arranged in parallel with the so-called vegetable compartment 5 on the left and right. It is a mid-freezer type storage room arrangement in which a freezing room 6 is arranged between the room 3 and the switching room 4.

貯蔵室である冷蔵室２内は、貯蔵品（食料品や飲料品等）を収納するための貯蔵品収納空間２１を有し、この貯蔵品収納空間２１には、貯蔵品を載置する複数の樹脂製やガラス製の棚８０が設けられている。この貯蔵品収納空間２１の下方（最下段の庫内棚の下部）には、略密閉構造の容器２Ｘ、２Ｙが設けられており、＋３℃〜−３℃程度のチルド温度帯に制御されるチルド室２Ｙ、あるいは、＋３℃〜＋５℃程度に維持される野菜室温度帯に制御される野菜室２Ｘとして使用される。この略密閉構造の容器２Ｘ、２Ｙは、たまごを保存する卵室として使用しても良い。また、この略密閉構造の容器２Ｘ、２Ｙは、たとえば引出式構造を有しており、容器を引き出すことで貯蔵品の出し入れが行える。   The refrigerator compartment 2, which is a storage room, has a storage product storage space 21 for storing storage products (food, beverages, etc.), and in this storage product storage space 21, a plurality of storage products are placed. A shelf 80 made of resin or glass is provided. Below this stored item storage space 21 (lower part of the lowest shelf in the cabinet), containers 2X and 2Y having a substantially sealed structure are provided and controlled to a chilled temperature range of about + 3 ° C to -3 ° C. It is used as a chilled room 2Y or a vegetable room 2X controlled to a temperature range of a vegetable room maintained at about + 3 ° C. to + 5 ° C. The substantially sealed containers 2X and 2Y may be used as an egg compartment for storing eggs. Further, the containers 2X and 2Y having a substantially sealed structure have, for example, a pull-out structure, and a stored product can be taken in and out by pulling out the container.

略密閉構造の容器２Ｘ、２Ｙの構造としては、上面が開口した上面開口部を有する容器の上面開口部に着脱式のフタを設けるようにすれば略密閉構造の容器を構成できる。このフタは容器の方に設けても良いし、容器上部に設けられている棚８０や仕切壁に設けても良いし、容器上部の棚や仕切壁のそのものをフタと兼用しても良い。   As the structure of the containers 2X and 2Y having a substantially sealed structure, a container having a substantially sealed structure can be configured by providing a detachable lid on the upper surface opening of the container having an upper surface opening having an upper surface opened. The lid may be provided on the container, may be provided on a shelf 80 or a partition wall provided on the top of the container, or the shelf or the partition wall itself on the top of the container may be used as the lid.

本実施の形態では、野菜室５と左右に並列に配設された製氷室３及び切替室４との間に冷凍室６を配設するミッドフリーザータイプであり、低温室（例えば、製氷室３、切替室４、冷凍室６）が近接するため低温室間の断熱材が不要であり、また、熱漏れも少ないので省エネルギーで低コストの冷蔵庫が提供できる。   In this Embodiment, it is a mid freezer type which arrange | positions the freezer compartment 6 between the vegetable compartment 5 and the ice making room 3 and the switching room 4 which were arrange | positioned in parallel with right and left, and is a low temperature room (for example, ice making room 3). Further, since the switching chamber 4 and the freezing chamber 6) are close to each other, a heat insulating material between the low-temperature chambers is unnecessary, and since there is little heat leakage, an energy-saving and low-cost refrigerator can be provided.

また、図１と同様に、貯蔵室である冷蔵室２の正面側開口部は、自在に開放、閉塞することができる観音開き式の冷蔵室扉７が設けられており、この冷蔵室扉７は、冷蔵室扉左７Ａ、冷蔵室扉右７Ｂの２つにより観音式扉を構成している。もちろん、観音式扉ではなく、１枚式の回転式扉でもよい。他の貯蔵室である製氷室３、切替室４、野菜室５、冷凍室６には、製氷室３の開口部を自在に開口・閉塞することができる引出式の製氷室扉８、切替室４の開口部を自在に開放・閉塞することができる引出式の切替室扉９、野菜室５の開口部を自在に開放・閉塞することができる引出式の野菜室扉１０、冷凍室６の開口部を自在に開放・閉塞することができる引出式の冷凍室扉１１がそれぞれ設けられている。   Similarly to FIG. 1, the front side opening of the refrigerating room 2 that is a storage room is provided with a double-folded refrigerating room door 7 that can be freely opened and closed. The kannon type door is constituted by two of the refrigerator compartment door left 7A and the refrigerator compartment door right 7B. Of course, a single-piece rotary door may be used instead of the Kannon door. The ice making room 3, the switching room 4, the vegetable room 5, and the freezing room 6, which are other storage rooms, have a drawer type ice making room door 8 and a switching room that can freely open and close the opening of the ice making room 3. Of the drawer type switching chamber door 9 that can freely open and close the opening of 4, the drawer type vegetable room door 10 that can freely open and close the opening of the vegetable room 5, and the freezing room 6 A drawer-type freezer compartment door 11 that can freely open and close the opening is provided.

また、貯蔵室である冷蔵室２の左右の冷蔵室扉左７Ａ、冷蔵室扉右７Ｂのいずれかには、貯蔵室内の温度設定などを行う操作スイッチ（部屋選択スイッチ６０ａ、温度帯切替スイッチ６０ｂ、瞬冷凍スイッチ６０ｃ、製氷切替スイッチ６０ｄ、ミスト供給スイッチ６０ｅ、その他の機能スイッチ（たとえばエコモードスイッチや省エネアドバイスを行うアドバイススイッチ、インターネットに接続や設定を行うインターネット設定・接続スイッチするなど））や庫内温度や設定温度などの温度情報の表示などを行う操作パネル６０が設けられており、操作スイッチの操作情報や液晶表示部の表示情報や貯蔵室内の温度情報などが冷蔵庫背面上部（冷蔵室背面壁）あるいは冷蔵庫天井面（たとえば冷蔵室上面壁、天井壁）の制御基板室３１に設けられたマイコンなどを実装した制御基板で構成される制御装置３０によって制御される。   In addition, an operation switch (room selection switch 60a, temperature zone changeover switch 60b) for setting the temperature in the storage room is provided on either of the left and right refrigerator doors 7A and 7B on the right and left of the refrigerator room 2 serving as a storage room. Instantaneous freezing switch 60c, ice making changeover switch 60d, mist supply switch 60e, other function switches (for example, eco mode switch, advice switch for providing energy saving advice, Internet setting / connection switch for connecting to and setting the Internet, etc.) An operation panel 60 for displaying temperature information such as the internal temperature and set temperature is provided, and operation information of operation switches, display information on the liquid crystal display unit, temperature information in the storage room, and the like are displayed on the upper rear side of the refrigerator (refrigeration room). (Rear wall) or on the control board room 31 on the refrigerator ceiling (for example, the top wall or ceiling wall of the refrigerator compartment) It is controlled by a configured control device 30 such as in the implemented control board microcomputer that is.

また、制御装置３０はアンテナなどの送受信手段を有しており、送受信手段は制御装置（制御基板）３０あるいは制御基板室３１内あるいは冷蔵庫１の上部（制御装置３０の近傍あるいは制御基板室３１内が好ましい）あるいは冷蔵庫１の背面（制御装置３０の近傍あるいは制御基板室３１内が好ましい）あるいは冷蔵庫１の側面（制御装置３０の近傍あるいは制御基板室３１内が好ましい）に設けられている。したがって、制御装置３０は、赤外線接続あるいは無線接続あるいは有線接続（電灯線接続やインターネット回線接続やＬＡＮ（ローカルエリアネットワーク）接続やＵＳＢ（ユニバーサル・シリアル・バス）接続など）にて冷蔵庫１の外部に配置される外部機器と機器情報を送受信できる。ここで冷蔵庫１の外部機器とは、外部サーバや携帯端末（携帯電話や携帯情報端末や携帯パソコンなど）や外部の他機器（エアコンやテレビや他冷蔵庫や給湯機や照明や洗濯機など）などである。また、機器情報とは、冷蔵庫１の機器情報（たとえば、庫内温度や消費電力や運転履歴や積算運転時間や圧縮機の運転情報（オン、オフ、回転数、電流情報など））や冷蔵庫１以外の情報（たとえば天気予報や災害情報（地震情報含む））やネットワークに接続された他機器の運転状況や各機器の消費電力量の情報などである。   Further, the control device 30 has transmission / reception means such as an antenna, and the transmission / reception means is in the control device (control board) 30 or the control board chamber 31 or in the upper part of the refrigerator 1 (in the vicinity of the control apparatus 30 or in the control board chamber 31). Or the back surface of the refrigerator 1 (preferably near the control device 30 or inside the control board chamber 31) or the side surface of the refrigerator 1 (preferably near the control device 30 or inside the control board chamber 31). Therefore, the control device 30 is connected to the outside of the refrigerator 1 by infrared connection, wireless connection, wired connection (power line connection, Internet line connection, LAN (local area network) connection, USB (universal serial bus) connection, etc.). Device information can be sent and received with external devices. Here, the external device of the refrigerator 1 is an external server, a portable terminal (such as a mobile phone, a portable information terminal, and a portable personal computer) or other external devices (such as an air conditioner, a TV, another refrigerator, a water heater, a lighting or a washing machine). It is. In addition, the device information refers to device information of the refrigerator 1 (for example, internal temperature, power consumption, operation history, accumulated operation time, compressor operation information (on, off, rotation speed, current information, etc.)) or the refrigerator 1. Other information (for example, weather forecast and disaster information (including earthquake information)), the operating status of other devices connected to the network, and information on the power consumption of each device.

ここで、冷蔵庫１が運転時間を計測する時間計測手段と計測した運転時間あるいは積算運転時間を記憶する記憶手段を備え、機器情報として予め定められた標準使用期間（標準使用時間）と積算運転時間の情報を外部サーバ（たとえばクラウドサーバなど）に送信することで、標準使用期間に対する実際の積算運転期間（積算運転時間）の割合（比率）や、標準使用期間に対して実際の積算運転期間（積算運転時間）が予め定められた所定の割合を越えた場合に買い替えのメッセージを受信して操作パネル６０や携帯端末などに表示させたり音声でアナウンスさせることもできる。また、外部機器に対しても、標準使用期間に対する実際の積算運転期間（積算運転時間）の割合（比率）や、標準使用期間に対して実際の積算運転期間（積算運転時間）が予め定められた所定の割合を越えた場合に買い替えのメッセージを受信して操作パネル６０や携帯端末などに表示させたり音声でアナウンスさせることもできる。   Here, the refrigerator 1 is provided with a time measuring means for measuring the operation time and a storage means for storing the measured operation time or the accumulated operation time, and a standard use period (standard use time) and an accumulated operation time predetermined as device information. By sending the information to an external server (for example, a cloud server), the ratio (ratio) of the actual accumulated operation period (integrated operation time) to the standard use period, or the actual accumulated operation period ( When the cumulative operation time) exceeds a predetermined ratio, a replacement message can be received and displayed on the operation panel 60 or a portable terminal, or can be announced by voice. For external devices, the ratio (ratio) of the actual integrated operation period (integrated operation time) with respect to the standard use period and the actual integrated operation period (integrated operation time) with respect to the standard use period are determined in advance. When the predetermined ratio is exceeded, a replacement message can be received and displayed on the operation panel 60 or a portable terminal, or can be announced by voice.

また、送受信手段を有しているため、外部の環境情報（天気予報や災害情報や地震情報や気温情報など）や外部機器情報（外部の他機器の運転状況や消費電力情報など）や電力の送受信が行えるため、サーバや外部機器からの情報を受信して省エネ制御を行ったり、他機器の情報を表示したりできる。また、冷蔵庫１の前面の開閉扉に設けられる操作パネル６０あるいは外部の携帯端末を操作することで、冷蔵庫１の情報を外部サーバや他機器に送信したり、外部サーバや他機器からの情報を受信して操作パネル６０や携帯端末などに表示させたり冷蔵庫などの機器を動作させたりすることができる。   In addition, because it has a transmission / reception means, external environmental information (such as weather forecasts, disaster information, earthquake information, and temperature information), external device information (such as operating status and power consumption information of other external devices) and power Since transmission and reception are possible, information from the server and external devices can be received to perform energy saving control, and information about other devices can be displayed. In addition, by operating an operation panel 60 provided on the front door of the refrigerator 1 or an external portable terminal, information on the refrigerator 1 can be transmitted to an external server or other device, or information from the external server or other device can be transmitted. It can be received and displayed on the operation panel 60 or a portable terminal, or a device such as a refrigerator can be operated.

また、冷蔵庫やショーケースなどの機器の場合には、貯蔵室内を所定温度（たとえば冷凍室であれば−１８℃）まで冷却して圧縮機１２あるいは冷気循環用ファン１４の運転を停止すると貯蔵室内温度は時間とともに上昇する。したがって、時間計測手段と温度計測手段を備えていれば、予め、工場出荷時などユーザが使用開始する前に貯蔵室内を所定の温度まで冷却した後に圧縮機１２あるいは冷気循環用ファン１４の運転を停止した状態、あるいはダンパ１５、５５を閉にした状態など所定の条件での経過時間に対する貯蔵室内温度の温度上昇度合い、あるいは計測開始時の貯蔵室内温度（所定温度）と所定時間（たとえば１０分）後の貯蔵室内温度の差分などの貯蔵室内温度情報を初期の温度情報として制御装置３０の記憶手段に記憶させておき、制御装置３０の記憶手段から外部のサーバなどに機器情報として送信して記憶させておくようにすれば、断熱性能の劣化の判断や異常の判断が行え、ユーザに買い替えを促すメッセージを携帯端末や操作パネル６０内の表示装置などに表示させることが可能となる。   In the case of a device such as a refrigerator or a showcase, when the storage room is cooled to a predetermined temperature (for example, −18 ° C. for a freezing room) and the operation of the compressor 12 or the cool air circulation fan 14 is stopped, the storage room The temperature increases with time. Therefore, if the time measuring means and the temperature measuring means are provided, the compressor 12 or the cool air circulation fan 14 is operated after the storage chamber has been cooled to a predetermined temperature before the user starts using such as at the time of factory shipment. The degree of temperature rise of the storage chamber temperature with respect to the elapsed time under a predetermined condition such as a stopped state or a state where the dampers 15 and 55 are closed, or the storage chamber temperature (predetermined temperature) at the start of measurement and a predetermined time (for example, 10 minutes) ) Stored room temperature information such as the difference in the later stored room temperature is stored in the storage means of the control device 30 as initial temperature information, and is transmitted as device information from the storage means of the control device 30 to an external server or the like. If stored, the deterioration of the heat insulation performance or the abnormality can be determined, and a message prompting the user to replace the mobile terminal is displayed. It is possible to display such as the display device.

すなわち、予め、工場出荷時などユーザが使用開始する前に貯蔵室内を所定の温度まで冷却した後に圧縮機１２あるいは冷気循環用ファン１４の運転を停止した状態、あるいは切替室ダンパ１５、５５を閉にした状態など所定の条件での経過時間に対する貯蔵室内温度の温度上昇度合い（初期温度上昇度合い）、あるいは計測開始時の貯蔵室内温度（所定温度）と所定時間（たとえば１０分）後の貯蔵室内温度との差分（初期温度差分）などの貯蔵室内温度情報を貯蔵室ごとの初期温度情報として制御装置３０の記憶手段に記憶させておき、ユーザが使用開始した後にサーバなど外部機器に機器情報として送信して記憶させておく。そして定期的に初期と同条件で温度上昇度合い、あるいは貯蔵室内温度の差分を計測して、機器情報として外部のサーバなどの外部機器に送信してサーバなどの外部機器にて初期温度情報と比較して許容範囲内であれば「異常なし」を表す信号を冷蔵庫などの機器本体が受信する。初期温度情報と比較して許容範囲外であれば「異常あり」を表す信号を冷蔵庫などの機器本体あるいは携帯端末が受信し、信号を受信した機器本体あるいは携帯端末は断熱性能劣化などの異常のメッセージあるいは買い替えを促すメッセージなどを表示するようにすれば良い。   That is, the compressor 12 or the cooling air circulation fan 14 is stopped after the storage chamber has been cooled to a predetermined temperature before the user starts using, such as at the time of factory shipment, or the switching chamber dampers 15 and 55 are closed. The temperature rise degree (initial temperature rise degree) of the storage room temperature with respect to the elapsed time under a predetermined condition such as a set state, or the storage room temperature (predetermined temperature) at the start of measurement and the storage room after a predetermined time (for example, 10 minutes) The storage room temperature information such as the difference from the temperature (initial temperature difference) is stored in the storage means of the control device 30 as the initial temperature information for each storage room, and is used as device information in an external device such as a server after the user starts use. Send and store. Then, periodically measure the degree of temperature rise or the difference in temperature in the storage room under the same conditions as the initial stage, send it as equipment information to an external device such as an external server, and compare it with the initial temperature information using an external device such as a server. Then, if it is within the allowable range, a device body such as a refrigerator receives a signal indicating “no abnormality”. If it is outside the allowable range compared to the initial temperature information, the device body or portable terminal such as a refrigerator receives a signal indicating that there is an abnormality, and the device body or portable terminal that has received the signal A message or a message prompting replacement purchase may be displayed.

また、冷蔵庫１の前面の開閉扉に設けられる操作パネル６０あるいは外部の携帯端末を操作したりあるいは冷蔵庫１の制御装置３０が自動で、外部機器に電力を供給したり、あるいは外部電源（たとえば太陽光発電装置や充電池や燃料電池など電力の供給が可能な機器）からの電力の供給や外部機器から電力の供給に切り替えて電力の供給を受けるようにすることも可能である。特に停電時などで冷蔵庫１への電力の供給が停止した場合でも、携帯端末やパソコンなどを操作することで電力の供給元を電灯線から外部電源に切り替えることで冷蔵庫１への電力の供給を行うことが可能になるので、携帯電話や携帯端末等の携帯機器やパソコン等が接続できる接続端子などを冷蔵庫１（あるいはネットワークに接続された機器）が備えていれば、携帯電話や携帯端末等の携帯機器やパソコン等の充電ができ、また、携帯電話や携帯端末等の携帯機器やパソコン等が有する他機器や外部の情報を表示したり操作したりすることも可能となる。
また、冷蔵庫１の内箱７５０と外箱７１０から形成され前面に開口部が設けられた収納空間（たとえば各貯蔵室２、３、４、５、６など）を有する本体部と、収納空間の前面開口部を開閉自在に閉塞する扉（たとえば、７、８、９、１０、１１など）とを備えた冷蔵庫の場合、本体部と扉にそれぞれ温度情報や機器制御情報などの情報の送受信や電力搬送が可能な送受信手段を設け、本体部と扉とを無線や赤外線で接続して情報や電力の送受信可能にすれば、扉を本体部と有線で接続する必要がなくなるので、間口の狭い入口（たとえば間口の小さな住宅の玄関など）を通過して冷蔵庫を室内等に搬送する際に、扉を本体部から取り外して搬送することが可能になるので、間口の狭い住宅への設置が可能しなる。また、工場出荷時から、扉と本体部を別々に梱包して搬送することも可能になり、また、重量が軽くなるので搬送しやすくなる。また、扉が本体部と別体であっても、扉と本体部との間では電力の送電、受電が可能なので、扉の前面に設けられる操作パネルの操作電源も得られ、さらに扉と本体部との間では機器情報や、機器の操作信号や制御信号の送受信も可能なので、扉の操作パネルを操作した場合には、本体部の機器（圧縮機１２やファン１４やダンパ１５、５５など）の運転、停止、その他の制御動作が可能となる。 Further, an operation panel 60 provided on the front door of the refrigerator 1 or an external portable terminal is operated, or the control device 30 of the refrigerator 1 automatically supplies power to an external device, or an external power source (for example, a solar power source). It is also possible to receive power supply by switching to power supply from a photovoltaic power generation device, a rechargeable battery, a fuel cell, or the like) or from an external device. Even when the supply of power to the refrigerator 1 is stopped especially during a power failure, the power supply to the refrigerator 1 can be performed by switching the power supply source from the power line to the external power source by operating a mobile terminal or a personal computer. If the refrigerator 1 (or a device connected to the network) has a connection terminal that can be connected to a portable device such as a cellular phone or a portable terminal or a personal computer, the cellular phone or the portable terminal Mobile devices and personal computers can be charged, and it is also possible to display and operate other devices and external information of mobile devices such as mobile phones and mobile terminals and personal computers.
In addition, a main body having a storage space (for example, each storage chamber 2, 3, 4, 5, 6, etc.) formed from the inner box 750 and the outer box 710 of the refrigerator 1 and provided with an opening on the front surface, In the case of a refrigerator provided with a door (for example, 7, 8, 9, 10, 11 etc.) that closes the front opening so that it can be opened and closed, transmission and reception of information such as temperature information and device control information to the main body and the door respectively. By providing transmission / reception means that can carry power and connecting the main unit and the door by wireless or infrared to enable transmission and reception of information and power, it is not necessary to connect the door to the main unit by wire, so the frontage is narrow When transporting the refrigerator indoors through an entrance (for example, a house entrance with a small frontage, etc.), the door can be removed from the main body and transported, so installation in a home with a narrow frontage is possible. I will. In addition, the door and the main body can be separately packed and transported from the factory, and the weight is reduced, which facilitates transport. In addition, even if the door is separate from the main body, power can be transmitted and received between the door and the main body, so an operation power source for the operation panel provided on the front of the door can be obtained. Since device information, device operation signals and control signals can be transmitted to and received from the unit, when the door operation panel is operated, the main unit devices (compressor 12, fan 14, dampers 15, 55, etc.) ) Operation, stop, and other control operations are possible.

冷蔵庫１の背面最下部（あるいは背面上部）に設けられている機械室１Ａには圧縮機１２が配置されている。冷蔵庫１は、冷凍サイクルを備えており、圧縮機１２は冷凍サイクルを構成する１部品であり機械室１Ａに配置されており、冷凍サイクル内の冷媒を圧縮する作用を有する。圧縮機１２で圧縮された冷媒は凝縮器（図示せず）において凝縮される。凝縮された状態の冷媒は毛細管（図示せず）や膨張弁（図示せず）等の減圧装置において減圧される。冷却器１３は、冷蔵庫の冷凍サイクルを構成する１部品であり、冷蔵室２、製氷室３、切替室４、野菜室５あるいは冷凍室６の背面壁内に形成されている冷却器室１３１に配置されている。減圧装置にて減圧された冷媒は、冷却器１３において蒸発し、蒸発時の吸熱作用により冷却器１３周辺の気体は冷却される。冷気循環用ファン（庫内ファン）１４は、冷却器室１３１内で冷却器１３の近傍に配置されており、冷却器１３周辺で冷却された冷気を冷気風路（例えば、冷気風路１６や冷蔵室冷気風路５０、７６０など）を介して冷蔵庫１の複数の貯蔵室である各室（冷蔵室２、製氷室３、切替室４、野菜室５、冷凍室６）へと送風するためのものである。   A compressor 12 is disposed in a machine room 1 </ b> A provided at the lowermost rear part (or upper rear part) of the refrigerator 1. The refrigerator 1 is provided with a refrigeration cycle, and the compressor 12 is a component that constitutes the refrigeration cycle and is disposed in the machine room 1A, and has an action of compressing a refrigerant in the refrigeration cycle. The refrigerant compressed by the compressor 12 is condensed in a condenser (not shown). The condensed refrigerant is decompressed in a decompression device such as a capillary tube (not shown) or an expansion valve (not shown). The cooler 13 is a component that constitutes the refrigeration cycle of the refrigerator. Has been placed. The refrigerant decompressed by the decompression device evaporates in the cooler 13, and the gas around the cooler 13 is cooled by the endothermic action during the evaporation. The cool air circulation fan (internal fan) 14 is disposed in the cooler chamber 131 in the vicinity of the cooler 13, and cools the cool air around the cooler 13 as a cool air air passage (for example, the cool air air passage 16 or the like). For blowing air to each room (refrigeration room 2, ice making room 3, switching room 4, vegetable room 5, freezing room 6), which is a plurality of storage rooms of refrigerator 1, via cold air passage 50, 760, etc. belongs to.

また、図１と同様に冷却器室１３１内に設けられている冷却器１３の下方には冷却器１３の除霜を行う除霜手段である除霜用ヒータ１５０が設けられており、冷却器１３と除霜用ヒータ１５０の間で除霜用ヒータ１５０の上部には、冷却器１３より落下してきた除霜水が直接除霜用ヒータ１５０に当たらない様に、ヒータルーフ１５１が設けられている。   As in FIG. 1, a defrosting heater 150, which is a defrosting means for defrosting the cooler 13, is provided below the cooler 13 provided in the cooler chamber 131. A heater roof 151 is provided above the defrosting heater 150 between the defrosting heater 150 and the defrosting heater 150 so that the defrosting water falling from the cooler 13 does not directly hit the defrosting heater 150. .

ここで、除霜用ヒータ１５０は、冷却器１３に一体に組み込まれたかち込みタイプのヒータであっても良い。また、ガラス管タイプヒータとかち込みタイプヒータを併用しても良い。冷却器１３で生成される除霜水あるいはヒータルーフ１５１に落下した除霜水は、冷却器室１３１内で落下して冷却器室１３１の下方に設けられている除霜水排出口１５５より冷蔵庫外部（たとえば機械室１Ａに設けられている蒸発皿等）に排出される。   Here, the defrosting heater 150 may be a stowage type heater integrally incorporated in the cooler 13. A glass tube type heater and a bite type heater may be used in combination. The defrost water generated in the cooler 13 or the defrost water dropped on the heater roof 151 falls in the cooler chamber 131 and is supplied to the outside of the refrigerator from the defrost water discharge port 155 provided below the cooler chamber 131. (For example, the evaporating dish provided in the machine room 1A).

風量調整手段である切替室ダンパ１５は、冷気循環用ファン１４により貯蔵室である切替室４に送風される冷気の冷気量を調整し、切替室４内の温度を所定温度に制御したり、切替室４の設定温度を切り替えたりするためのものである。冷却器１３で冷却された冷気は冷気風路１６を通って、切替室４内に送風される。また、この冷気風路１６は、切替室ダンパ１５の下流に配されている。   The switching chamber damper 15 that is an air volume adjusting means adjusts the amount of cool air blown to the switching chamber 4 that is a storage chamber by the cool air circulation fan 14, and controls the temperature in the switching chamber 4 to a predetermined temperature, This is for switching the set temperature of the switching chamber 4. The cold air cooled by the cooler 13 is blown into the switching chamber 4 through the cold air passage 16. The cold air passage 16 is disposed downstream of the switching chamber damper 15.

また、風量調整手段である冷蔵室ダンパ５５も、冷気循環用ファン１４により貯蔵室である冷蔵室２に送風される冷気の冷気量を調整し、冷蔵室２内の温度を所定温度に制御したり、冷蔵室２の設定温度を変更したりするためのものである。冷却器１３で冷却された冷気が冷気風路１６、冷気風路５０、７６０を通って、冷蔵室２内に送風される。   Further, the cold room damper 55 as the air volume adjusting means also adjusts the amount of cold air blown to the cold room 2 as the storage room by the cold air circulation fan 14 and controls the temperature in the cold room 2 to a predetermined temperature. Or for changing the set temperature of the refrigerator compartment 2. The cold air cooled by the cooler 13 is blown into the refrigerator compartment 2 through the cold air passage 16 and the cold air passages 50 and 760.

貯蔵室である、例えば切替室４は、貯蔵室内の温度を冷凍温度帯（−１７℃以下）から野菜室温度帯（３〜１０℃）までの間で複数の段階から選択可能な部屋（貯蔵室）であり、冷蔵庫１の冷蔵室扉左７Ａ、冷蔵室扉右７Ｂのいずれかに設置した操作パネル６０あるいは外部の携帯端末などを操作することで貯蔵室内の温度の選択や切り替えを行う。   For example, the switching room 4 which is a storage room is a room (storage) in which the temperature in the storage room can be selected from a plurality of stages between a freezing temperature zone (−17 ° C. or lower) and a vegetable room temperature zone (3 to 10 ° C.) The temperature in the storage room is selected or switched by operating the operation panel 60 or an external portable terminal installed in either the refrigerator compartment door left 7A or the refrigerator compartment door right 7B of the refrigerator 1.

また、切替室４の、例えば奥側壁面には、切替室４内の空気温度を検知するための第１の温度検出手段である切替室サーミスタ１９（図３と同等）が設置されており、切替室４の例えば天上面（中央部、前面部、あるいは後面部など）には貯蔵室である切替室４内に投入された貯蔵物の表面温度を直接的に検出するための第２の温度検出手段であるサーモパイル２２（図３と同等、あるいは赤外線センサ）を設置されている。第１の温度検出手段である切替室サーミスタ１９の検出温度（あるいはサーモパイル２２の検出温度）により切替室ダンパ１５を開・閉することで、切替室４の温度が選択された温度帯になるように調整したり、設定された温度範囲内に入るように制御装置３０にて制御される。また、第２の温度検出手段であるサーモパイル２２にて切替室４内の貯蔵物である食品の温度を直接検出できるようにしている。   Moreover, the switching chamber thermistor 19 (equivalent to FIG. 3) which is the 1st temperature detection means for detecting the air temperature in the switching chamber 4 is installed in the back wall surface, for example of the switching chamber 4, The second temperature for directly detecting the surface temperature of the storage material put into the switching chamber 4 as a storage chamber, for example, on the top surface (center portion, front surface portion, rear surface portion, etc.) of the switching chamber 4. A thermopile 22 (equivalent to FIG. 3 or an infrared sensor) is installed as detection means. The switching chamber damper 15 is opened and closed by the detection temperature of the switching chamber thermistor 19 (or the detection temperature of the thermopile 22), which is the first temperature detection means, so that the temperature of the switching chamber 4 is in the selected temperature range. Or is controlled by the control device 30 so as to fall within the set temperature range. Further, the thermopile 22 as the second temperature detecting means can directly detect the temperature of the food that is stored in the switching chamber 4.

（ミスト装置２００）
貯蔵室（たとえば冷蔵室２）の奥側（背面側）の仕切壁５１（背面壁７３０、風路カバーである第１風路部品７６２）、あるいは貯蔵室（たとえば冷蔵室２）内の貯蔵品収納空間２１の下部に設けられた略密閉容器（たとえば略密閉容器２Ｘあるいは２Ｙ）の容器背面壁の後方の仕切壁）、あるいは貯蔵室（たとえば野菜室５）の背面仕切壁または上面仕切壁２４には、貯蔵室内にミストを供給するミスト装置２００である静電霧化装置２００が設けられている。 (Mist device 200)
A partition wall 51 (back wall 730, first air passage component 762 that is an air path cover) on the back side (back side) of the storage room (for example, the refrigeration room 2), or a stored product in the storage room (for example, the refrigeration room 2). The rear partition wall or the upper partition wall 24 of the substantially closed container (for example, the rear wall of the container rear wall of the substantially sealed container 2X or 2Y) provided in the lower part of the storage space 21, or the storage room (for example, the vegetable room 5). Is provided with an electrostatic atomizing device 200 which is a mist device 200 for supplying mist into the storage chamber.

ミスト装置２００は、少なくとも放電電極を備えており、放電電極に水が供給されるかあるいは放電電極に水を生成させて、放電電極に電圧を印加することで放電電極にミストが生成される。放電電極への水の供給は、放熱部を冷却することで放熱部と熱的に接続された放電電極に結露水を発生させれば良い。あるいは放熱部と放電電極が熱的に接続されていない場合には、放熱部が冷却されることで生成される結露水を放電電極に供給するようにすれば良い。（放電電極が吸熱部を兼ねる構造でも良く、この場合には、放熱部が放電電極と熱的に接続されており、放熱部が冷却されることで、放電電極に結露水を発生させても良い）。または、ミスト装置２００は、少なくとも放電電極と放電電極を保持または収納する電極保持部とを備えており、放電電極に電圧を印加することでミストを発生させる。放電電極に水を供給する水供給手段を有する場合には、水供給手段より放電電極に水を供給し放電電極に電圧を印加することでミストを発生させても良い。ここで、水供給手段としては、水を貯留できる貯水タンクや熱交換器（たとえば冷却器１３）などであれば良い。水供給手段が冷却器１３の場合には、冷却器１３で生成される除霜水を冷却器室１３１内に配置された容器１５２で受けて溜めて、容器内の水を毛細管現象などによって放電電極に供給するようにすれば良い。ここで、対向電極を備えた方が、ミストの生成が安定するが、対向電極はなくても良く、気中放電でも良い。   The mist device 200 includes at least a discharge electrode, and water is supplied to the discharge electrode or water is generated at the discharge electrode, and voltage is applied to the discharge electrode to generate mist at the discharge electrode. The supply of water to the discharge electrode may be achieved by generating condensed water at the discharge electrode thermally connected to the heat dissipation part by cooling the heat dissipation part. Alternatively, when the heat radiating portion and the discharge electrode are not thermally connected, dew condensation water generated by cooling the heat radiating portion may be supplied to the discharge electrode. (The discharge electrode may also serve as a heat absorption part. In this case, the heat dissipating part is thermally connected to the discharge electrode, and the heat dissipating part is cooled to generate condensed water on the discharge electrode. good). Or the mist apparatus 200 is provided with the electrode holding part which hold | maintains or accommodates a discharge electrode and a discharge electrode at least, and generates mist by applying a voltage to a discharge electrode. In the case of having water supply means for supplying water to the discharge electrode, mist may be generated by supplying water to the discharge electrode from the water supply means and applying a voltage to the discharge electrode. Here, the water supply means may be a water storage tank or a heat exchanger (for example, the cooler 13) that can store water. When the water supply means is the cooler 13, the defrost water generated by the cooler 13 is received and stored in the container 152 disposed in the cooler chamber 131, and the water in the container is discharged by capillary action or the like. What is necessary is just to make it supply to an electrode. Here, although the generation of mist is more stable when the counter electrode is provided, the counter electrode may not be provided and air discharge may be used.

ここで、放電電極は、貯蔵室（たとえば冷蔵室２）内に設けられており、ミスト装置２００が設けられている仕切壁内に冷気風路が設けられている場合には、放熱部は貯蔵室の仕切壁（背面あるいは上面あるいは下面あるいは側面）に設けられる冷気風路（たとえば冷気風路１６、５０、７６０）の風路壁に直接接触するかあるいは熱伝導部材を介して間接接触するか、あるいは風路壁を貫通して冷気風路内に突出するように設ければ、冷気風路内の冷気で放熱部が冷却されて放熱部と熱的に接続されている放電電極に結露水が発生し放電電極に電圧が印加されることでミストが発生するので良い。   Here, the discharge electrode is provided in the storage chamber (for example, the refrigerator compartment 2), and when the cold air passage is provided in the partition wall in which the mist device 200 is provided, the heat radiating portion is stored. Whether it is in direct contact with the air passage wall of a cold air passage (for example, the cold air passage 16, 50, 760) provided on the partition wall (rear surface, upper surface, lower surface, or side surface) or indirectly through a heat conducting member Alternatively, if it is provided so as to penetrate the air passage wall and protrude into the cold air passage, the heat radiating portion is cooled by the cold air in the cold air passage and the condensed water is formed on the discharge electrode that is thermally connected to the heat radiating portion. Since mist is generated and a voltage is applied to the discharge electrode, mist may be generated.

ミスト装置２００が設けられている貯蔵室（上面あるいは下面あるいは側面）の仕切壁に対して貯蔵室（たとえば野菜室５）と反対側に設けられる別の隣接する貯蔵室（例えば冷凍室６）内の冷気を利用して放熱部を冷却しても良い。この場合には、放熱部を貯蔵室側から他の貯蔵室(例えば冷凍室)の底面壁あるいは上面壁に接触するように設ければ良い。（ミスト装置２００は、貯蔵室であればどの部屋に設けても良く、冷蔵室２あるいは野菜室５あるいはチルド室２Ｘ、２Ｙ等どの貯蔵室や容器内でも良い。ミスト装置２００を背面壁に設ける場合は、貯蔵室と冷却器室の間に設けられる背面壁の一部を構成する仕切壁に設けても良い。（温度差を有する２つの隣接する貯蔵室間（たとえば高温側の貯蔵室である野菜室５と隣接する低温側の貯蔵室である冷凍室６の間）の仕切板に高温側の貯蔵室側にミスト装置２００を設けて、放熱部の一端（放電電極と反対側の端部）を他の貯蔵室の仕切り板に接触するように設けて低温側の貯蔵室の低温の冷気を利用（高温側の貯蔵室と低温側の貯蔵室の温度差を利用）して放熱部を冷却するように設けてもよい。）   In another adjacent storage room (for example, freezing room 6) provided on the opposite side of the storage room (for example, vegetable room 5) with respect to the partition wall of the storage room (upper surface, lower surface, or side surface) in which mist device 200 is provided The heat radiating portion may be cooled using the cool air. In this case, the heat radiating portion may be provided so as to come into contact with the bottom wall or the top wall of another storage chamber (for example, a freezing chamber) from the storage chamber side. (The mist device 200 may be provided in any room as long as it is a storage room, and may be provided in any storage room or container such as the refrigerator room 2, the vegetable room 5, or the chilled rooms 2X, 2Y. The mist apparatus 200 is provided on the back wall. In this case, it may be provided on a partition wall constituting a part of the back wall provided between the storage chamber and the cooler chamber (for example, between two adjacent storage chambers having a temperature difference (for example, in a high temperature side storage chamber). A mist device 200 is provided on the side of the high temperature side storage chamber on the partition plate of the vegetable room 5 and the freezing room 6 adjacent to the low temperature side storage chamber, and one end of the heat radiating portion (the end opposite to the discharge electrode) Part) to be in contact with the partition plate of the other storage room and use the low temperature cold air in the low temperature side storage room (using the temperature difference between the high temperature side storage room and the low temperature side storage room) May be provided so as to cool.)

図１０に示すように、真空断熱材４００は、冷蔵庫１の背面、上面、底面に設けられている。また、図示していないが、側面、仕切壁２４、扉にも真空断熱材４００が設けられている。背面に設けられる真空断熱材４００は、図８で説明したように少なくとも凹部４４０の範囲においては、外箱７１０、内箱７５０に主目的が接着である接着剤としての発泡断熱材によって直接貼り付けられており、接着剤としては、接着性を有する硬質ウレタンフォームを使用すれば良く、硬質ウレタンフォームを使用すれば、フリーフォーム密度を適切に調整することによって狭い流路（たとえば真空断熱材４００と内箱７５０の間など）内であっても満遍なくムラなく充填できる。また、狭い流路であっても接着できるため接着剤として硬質ウレタンフォームが適しており、硬質ウレタンフォームを接着剤として使用している。   As shown in FIG. 10, the vacuum heat insulating material 400 is provided on the back surface, top surface, and bottom surface of the refrigerator 1. Moreover, although not shown, the vacuum heat insulating material 400 is also provided on the side surface, the partition wall 24, and the door. The vacuum heat insulating material 400 provided on the back surface is directly attached to the outer box 710 and the inner box 750 with a foam heat insulating material as an adhesive whose main purpose is adhesion, at least in the range of the recess 440 as described in FIG. As the adhesive, it is sufficient to use a hard urethane foam having adhesiveness. If a hard urethane foam is used, a narrow flow path (for example, the vacuum heat insulating material 400 and the like) can be obtained by appropriately adjusting the free foam density. Even inside the inner box 750, etc., it can be filled evenly. Moreover, since it can adhere | attach even if it is a narrow flow path, a hard urethane foam is suitable as an adhesive agent, and the hard urethane foam is used as an adhesive agent.

主目的を接着剤として硬質ウレタンフォームを使用する場合には、硬質ウレタンフォームの厚さが薄くなることによる断熱性能の低下について考慮しなくて良くなるため、硬質ウレタンフォームの厚さを所定の厚さ以下にすることができ、壁面（たとえば背面壁）の厚さを薄くでき貯蔵室内の容積を大きくすることが可能となる。硬質ウレタンフォームを接着剤として使用した場合の接着剤としての所定厚さは、１１ｍｍ以下程度（たとえば１０ｍｍより小さい方が良い）、更に好ましくは６ｍｍ程度以下が良く、また、接着剤としての接着力（接着性能）を満足できれば薄ければ薄い方が良く所定厚さ（たとえば１ｍｍ以上、好ましくは３ｍｍ）以上程度が良い。たとえば１ｍｍより薄くすると、真空断熱材４００の表面の粗さ（外包材の凹凸）を接着剤の厚さが吸収できずに真空断熱材４００の表面の凸部が直接内箱７５０に接触し接着できない部分が生じ接着強度が低下する可能性がので、硬質ウレタンフォームを接着材として使用する場合には、薄すぎると接着強度が低下する恐れがあるので、所定厚さ以上とした方が良い。   When rigid urethane foam is used as an adhesive for the main purpose, it is not necessary to consider the deterioration of heat insulation performance due to the thin thickness of the rigid urethane foam. The thickness of the wall surface (for example, the back wall) can be reduced, and the volume in the storage chamber can be increased. When rigid urethane foam is used as the adhesive, the predetermined thickness as the adhesive is about 11 mm or less (for example, smaller than 10 mm is preferable), more preferably about 6 mm or less, and the adhesive strength as the adhesive As long as (adhesion performance) can be satisfied, the thinner the better, the better the thickness (for example, 1 mm or more, preferably 3 mm) or more. For example, if the thickness is less than 1 mm, the surface roughness of the vacuum heat insulating material 400 (unevenness of the outer packaging material) cannot be absorbed by the adhesive thickness, and the convex portion of the surface of the vacuum heat insulating material 400 directly contacts the inner box 750 for bonding. Since there is a possibility that a portion that cannot be produced and the adhesive strength is lowered, when the hard urethane foam is used as an adhesive, the adhesive strength may be lowered if it is too thin.

もちろん、硬質ウレタンフォームを接着剤として使用した場合、断熱性能が得られないわけではなく、真空断熱材４００よりは劣るが断熱材としての断熱性能も得ることができる。すなわち、真空断熱材４００をたとえば外箱７１０あるいは内箱７５０に接着する場合に、接着剤として硬質ウレタンフォームを使用すれば、真空断熱材４００による断熱効果に加えてウレタンによる断熱効果も得られる。また、内箱７５０と外箱７１０の間に真空断熱材４００が設けられていない部分については、真空断熱材４００が設けられない分だけ硬質ウレタンフォームの厚さを大きくできるので、断熱性能が向上する。また、自己接着性を有する硬質ウレタンフォームを内箱７５０と外箱７１０の間の接着剤として使用できる。したがって、断熱箱体７００の箱体強度が向上し、また、断熱性能も向上する。   Of course, when a hard urethane foam is used as an adhesive, the heat insulation performance is not obtained, and although it is inferior to the vacuum heat insulation material 400, the heat insulation performance as a heat insulation material can also be obtained. That is, when the vacuum heat insulating material 400 is bonded to, for example, the outer box 710 or the inner box 750, if a hard urethane foam is used as an adhesive, a heat insulating effect by urethane can be obtained in addition to the heat insulating effect by the vacuum heat insulating material 400. In addition, for the portion where the vacuum heat insulating material 400 is not provided between the inner box 750 and the outer box 710, since the thickness of the rigid urethane foam can be increased by the amount not provided with the vacuum heat insulating material 400, the heat insulating performance is improved. To do. Further, a hard urethane foam having self-adhesiveness can be used as an adhesive between the inner box 750 and the outer box 710. Therefore, the box strength of the heat insulation box 700 is improved, and the heat insulation performance is also improved.

冷却器室１３１内に配置された冷却器１３で生成された冷気は、冷気循環用ファン１４により冷気風路１６、風量調整手段である冷蔵室ダンパ５５、第２風路部品に形成される冷蔵室用冷気風路７６０を介して第１の風路部品７６２に設けられた冷気供給口７６８より冷蔵室２内（略密閉容器２Ｘ、２Ｙを含む）に供給される。貯蔵室である冷蔵室２内を冷却した冷気は、冷蔵室戻り風路４１０を通って冷却器室１３１に戻るが、冷蔵室戻り風路４１０内の冷気の一部を野菜室５に供給するようにしても良い。この場合は、野菜室５内を冷却した冷気は野菜室戻り風４３０を通って冷却器室１３１に戻される。野菜室５への冷気の供給については、冷蔵室２や切替室４等、他の貯蔵室を冷却して温度が上昇した戻り冷気で冷却するようにしてもよいが、冷却器室１３１の冷却器１３にて生成された冷気で直接冷却しても良い。   The cold air generated by the cooler 13 arranged in the cooler chamber 131 is refrigerated by the cool air circulation fan 14 in the cool air air passage 16, the refrigerating chamber damper 55 which is an air volume adjusting means, and the second air passage components. The air is supplied into the refrigerator compartment 2 (including substantially sealed containers 2X and 2Y) from the cold air supply port 768 provided in the first air passage component 762 via the room cold air passage 760. The cold air that has cooled the inside of the refrigerating room 2 as the storage room returns to the cooler room 131 through the refrigerating room return air passage 410, but supplies a part of the cold air in the refrigerating room return air passage 410 to the vegetable compartment 5. You may do it. In this case, the cold air that has cooled the inside of the vegetable compartment 5 is returned to the cooler compartment 131 through the vegetable compartment return air 430. Regarding the supply of cold air to the vegetable room 5, other storage rooms such as the refrigerating room 2 and the switching room 4 may be cooled with the return cold air whose temperature has risen. You may cool directly with the cold air | gas produced | generated with the vessel | 13.

製氷室３あるいは切替室４への冷気は、冷気循環用ファン１４の動作により冷却器室１３１内に配置された冷却器１３より冷気風路１６、風量調整装置である切替室ダンパ１５、切替室用冷気風路１７を介して供給され、製氷室用戻り風路（図示せず）あるいは切替室用戻り風路（図示せず）を介して冷却器室１３１に戻る。冷凍室６への冷気は、冷却器室１３１内に配置された冷却器１３より冷気風路１６、冷凍室用冷気風路１８を介して供給され、冷凍室用戻り風路４２０を介して冷却器室１３１に戻される。   The cold air to the ice making chamber 3 or the switching chamber 4 is supplied from the cooler 13 disposed in the cooler chamber 131 by the operation of the cool air circulation fan 14, the cool air flow path 16, the switching chamber damper 15 which is an air volume adjusting device, the switching chamber. It is supplied via the cold air flow path 17 and returns to the cooler room 131 via the ice making room return air path (not shown) or the switching room return air path (not shown). The cold air to the freezer compartment 6 is supplied from the cooler 13 disposed in the cooler compartment 131 through the cold air passage 16 and the cold air passage 18 for the freezer compartment, and is cooled through the freezer return air passage 420. Returned to the chamber 131.

ここで、貯蔵室へのミストの供給は、冷気循環用ファン１４のオンまたはオフと同時、あるいは時間をずらしてあるいは連動してミスト装置２００に通電または停止するようにしても良い。また、ミストを複数の貯蔵室に供給する場合には、第１の貯蔵室（たとえば野菜室５や冷蔵室２）と第２の貯蔵室（たとえば冷蔵室２や冷凍室６や野菜室５や切替室４など）のミスト供給の切替にダンパ装置（たとえば切替室ダンパ１５や冷蔵室ダンパ５５や野菜室ダンパや冷凍室ダンパなど）を使用しても良い。たとえば、ミスト装置２００が第１の貯蔵室（たとえば野菜室）の上部の仕切壁の凹部に少なくとも一部が収納されるように設けられている場合で、この凹部と連通するミスト供給用の風路を仕切壁内に有している場合、野菜室ダンパを開にした時には、凹部内のミストは仕切壁内のミスト供給用の風路を通って第１の冷気風路（たとえば野菜室戻り風路など）、冷却器室、第２の冷気風路を介して第２の貯蔵室（たとえば冷蔵室）に供給されるようにし、野菜室ダンパを閉にした時には、野菜室には冷気が供給されないので、凹部内のミストは重力で第１の貯蔵室（たとえば野菜室）内に供給されるようにすれば良い。この時、第２の冷気風路を冷蔵室２の背面に設けられる冷気風路７６０としても良い。また、ダンパ装置の開閉で第１の貯蔵室へのミストの供給と第２の貯蔵室へのミストの供給を切り替えても良い。また、ダンパ装置の代わりに冷気循環用ファン１４のオン、オフで行っても良い。   Here, the supply of mist to the storage chamber may be performed such that the mist device 200 is energized or stopped at the same time as the cool air circulation fan 14 is turned on or off, or at a time offset or in conjunction. When supplying mist to a plurality of storage rooms, the first storage room (for example, the vegetable room 5 and the refrigerator room 2) and the second storage room (for example, the refrigerator room 2, the freezer room 6, the vegetable room 5, and the like) A damper device (for example, the switching chamber damper 15, the refrigeration chamber damper 55, the vegetable chamber damper, the freezing chamber damper, or the like) may be used for switching the mist supply in the switching chamber 4 or the like. For example, when the mist device 200 is provided so that at least a part of the mist device 200 is accommodated in the recess of the upper partition wall of the first storage chamber (for example, the vegetable compartment), the mist supply wind communicating with the recess is provided. When the path is in the partition wall, when the vegetable compartment damper is opened, the mist in the recess passes through the mist supply air path in the partition wall and passes through the first cold air passage (for example, the vegetable compartment return). Air), the cooler room, the second cold air path, and the second storage room (for example, the refrigeration room), and when the vegetable room damper is closed, the vegetable room receives cold air. Since it is not supplied, the mist in the recess may be supplied by gravity into the first storage room (for example, the vegetable room). At this time, the second cold air passage may be a cold air passage 760 provided on the back surface of the refrigerator compartment 2. Further, the supply of mist to the first storage chamber and the supply of mist to the second storage chamber may be switched by opening and closing the damper device. Further, the cool air circulation fan 14 may be turned on / off instead of the damper device.

また、凹部内で冷気と混合されてミストを含んだ冷気を第１の貯蔵室に供給し、第１の貯蔵室に供給されたミストを含んだ冷気の一部を仕切壁（たとえば上面仕切壁や側面仕切壁）に設けられた風路（たとえば冷却器室への戻り風路）を介して冷却器室に戻し、冷却器室を介して第２の貯蔵室にミストを含んだ冷気を供給するようにしてもよい。）仕切壁に設けられる風路は、ミスト装置２００（霧化装置）の少なくと一部あるいは全部が収納される凹部を覆うように設けられるカバーで形成しても良いし、別部品で形成しても良いし、仕切壁の内部に設けても良い。ここで、カバーには冷気入口や冷気出口の少なくと１つを設ければ良い。   In addition, the cool air mixed with the cool air in the recess is supplied to the first storage chamber, and a part of the cool air including the mist supplied to the first storage chamber is separated from the partition wall (for example, the upper partition wall). And return to the cooler room through an air passage (for example, a return air passage to the cooler room) provided in the side wall, and supply cold air containing mist to the second storage room through the cooler room. You may make it do. ) The air path provided in the partition wall may be formed by a cover provided so as to cover at least a part of or the whole of the mist device 200 (atomization device), or may be formed by a separate part. It may be provided inside the partition wall. Here, at least one of the cold air inlet and the cold air outlet may be provided in the cover.

（ワイドギャップ半導体）
制御基板室３１内には、制御装置３０が設けられており、スイッチング素子やダイオード素子などの半導体部品が設けられており、インバータ駆動回路などの少なくとも一部の半導体部品にワイドバンドギャップ半導体が使用されている。また、制御装置３０には、半導体部品のみ（ワイドバンドギャップ半導体のみでも良い）搭載しても良いし、たとえば制御関連部品（たとえばトランスやリレーやコンバータや電源リアクタやコンデンサや電流検出部品などのうちの少なくとも１つ）などを半導体部品と一緒に搭載しても良い。 (Wide gap semiconductor)
A control device 30 is provided in the control board chamber 31, and semiconductor components such as switching elements and diode elements are provided. Wide band gap semiconductors are used for at least some of the semiconductor components such as an inverter drive circuit. Has been. In addition, only a semiconductor component (only a wide band gap semiconductor may be used) may be mounted on the control device 30, for example, a control-related component (for example, a transformer, a relay, a converter, a power reactor, a capacitor, a current detection component, etc. Or the like may be mounted together with the semiconductor component.

本実施の形態では、制御装置３０に搭載される半導体部品（たとえば圧縮機１２や圧縮機冷却ファンや冷気循環用ファン１４などの駆動制御用のインバータ駆動回路用半導体など）としてワイドバンドギャップ半導体を使用している。従来は制御装置３０に搭載されるたとえばインバータ駆動回路部品などの半導体部品には一般的にシリコン（Ｓｉ）をベースとした半導体が用いられてきたが、本実施の形態ではワイドバンドギャップ半導体を使用しており、ワイドバンドギャップ半導体としては、たとえば炭化ケイ素（ＳｉＣ）、窒化ガリウム（ＧａＮ）、ダイヤモンド、窒化アルミニウムガリウム（ＡｌＧａＮ）などを使用している。   In the present embodiment, a wide band gap semiconductor is used as a semiconductor component (for example, an inverter drive circuit semiconductor for drive control such as the compressor 12, the compressor cooling fan, or the cool air circulation fan 14) mounted on the control device 30. I use it. Conventionally, for example, a semiconductor based on silicon (Si) has been used as a semiconductor component such as an inverter drive circuit component mounted on the control device 30, but in this embodiment, a wide band gap semiconductor is used. For example, silicon carbide (SiC), gallium nitride (GaN), diamond, and aluminum gallium nitride (AlGaN) are used as the wide band gap semiconductor.

シリコン（Ｓｉ）半導体に対するワイドバンドギャップ半導体（たとえば炭化珪素ＳｉＣや窒化ガリウム、ガリウムナイトライド（ＧａＮ）など）の優位点としては、以下の２点があげられる。１つ目のメリットとしては、素子の損失が小さく、高温動作が可能である点である。Ｓｉは発熱量が多く、また約１００℃〜２００℃で半導体性能が低下して動作困難になるため放熱用のフィン（放熱器）を設け、更に空気を介して放熱させる必要があり、フィンを搭載するための収納容積と放熱のための空間が必要になる。これに対し、ワイドバンドギャップ半導体（たとえばＳｉＣ）は素子でのスイッチング損失が小さく、省エネルギーでありながら、また、３００℃程度までは性能の低下が起こりにくいため、機械室１Ａなど高温雰囲気中での使用が可能となる。また、３００℃程度までは性能の低下が起こりにくいため、放熱用のフィンが不要、あるいは放熱用のフィンをかなり小さく（高さや大きさを小さく低背化、小形化）できるというメリットがある。   The advantages of wide band gap semiconductors (eg, silicon carbide SiC, gallium nitride, gallium nitride (GaN), etc.) over silicon (Si) semiconductors include the following two points. The first advantage is that the element loss is small and high-temperature operation is possible. Since Si generates a large amount of heat, and it becomes difficult to operate at a temperature of about 100 ° C. to 200 ° C., it is necessary to provide a heat dissipating fin (heat radiator) and to dissipate heat via air. A storage capacity for mounting and a space for heat dissipation are required. On the other hand, wide band gap semiconductors (for example, SiC) have low switching loss in the element and are energy saving. Also, since performance is hardly lowered up to about 300 ° C. Can be used. Further, since the performance hardly deteriorates up to about 300 ° C., there is an advantage that a fin for heat radiation is unnecessary or the fin for heat radiation can be made considerably small (height and size are reduced to a low profile and a small size).

２つ目のメリットとしては、半導体構成部品であるデバイスの厚さを小さくできる点である。ワイドバンドギャップ半導体（たとえばＳｉＣやＧａＮ）は、絶縁破壊電界強度が大きいので、半導体の耐圧が大きい（シリコン（Ｓｉ）の約１０倍の耐圧を持っている）ため、半導体デバイスの厚さを１／１０程度にまで小さく（薄く）できる。本実施の形態では、このような特性を持つワイドバンドギャップ半導体を用いることで、インバータ駆動回路部品の大幅な小型化、低背化や、放熱環境を気にしなくて良い構造などが実現できるため、設計の自由度の大きな小形で高温環境下での品質良好な冷蔵庫が得られる。   The second merit is that the thickness of the device, which is a semiconductor component, can be reduced. Wide band gap semiconductors (eg, SiC and GaN) have a high breakdown field strength, so the breakdown voltage of the semiconductor is large (having a breakdown voltage about 10 times that of silicon (Si)). It can be as small (thin) as / 10. In this embodiment, by using a wide bandgap semiconductor having such characteristics, it is possible to realize a drastic downsizing and low profile of the inverter drive circuit components and a structure that does not require concern for the heat radiation environment. A small refrigerator with a high degree of design freedom and a good quality in a high temperature environment can be obtained.

制御装置３０に搭載されるインバータ駆動回路部品などの半導体部品には、ワイドバンドギャップ半導体が使用されているため、絶縁破壊電解強度が大きく、耐圧が大きいため厚さや大きさが小さくできる（シリコンに比べ約１／１０）。また、３００℃の高温でも動作可能なので半導体部品の冷却用の放熱フィン（放熱器）も極端に小さくできる。したがって、従来は、制御装置３０に搭載された状態で他の制御関連部品などよりも極端に高さが高かった放熱器が設けられたインバータ駆動回路部品である半導体部品に、本実施の形態ではワイドバンドギャップ半導体を使用することにより放熱器とインバータ駆動回路部品を合わせた高さや大きさ（縦や横の幅）を極端に小さく（低背化や小形化）できるため、制御装置３０に搭載した状態で他の制御関連部品（たとえば電源リアクタやコンデンサやトランスや電流検出部品など）の高さと同等程度、あるいは同等程度以下の高さにまで低くすることが可能である。   Wide bandgap semiconductors are used for semiconductor components such as inverter drive circuit components mounted on the control device 30, so that the dielectric breakdown electrolysis strength is large and the withstand voltage is large, so that the thickness and size can be reduced (in silicon). About 1/10). Moreover, since it can operate | move even at the high temperature of 300 degreeC, the radiation fin (radiator) for cooling of semiconductor components can also be made extremely small. Therefore, conventionally, in the present embodiment, the semiconductor component which is an inverter drive circuit component provided with a radiator having a height extremely higher than other control-related components mounted on the control device 30 is used in the present embodiment. By using wide band gap semiconductors, the combined height and size (vertical and horizontal width) of the radiator and inverter drive circuit components can be made extremely small (low profile and small size). In this state, it is possible to reduce the height to the same level as that of other control-related parts (for example, a power reactor, a capacitor, a transformer, a current detection part, etc.), or to a height below the same level.

ここで、制御基板室３１が配置されている部分においても、真空断熱材４００を外箱７１０あるいは制御基板室３１に接着剤にて直接貼り付け、真空断熱材４００と内箱７５０との間には接着剤として硬質ウレタンフォームを所定厚さ（たとえば、１ｍｍ以上、好ましくは３ｍｍ以上、また１１ｍｍ以下好ましくは６ｍｍ以下）になるように設定して充填すれば良い。   Here, even in the portion where the control board chamber 31 is arranged, the vacuum heat insulating material 400 is directly attached to the outer box 710 or the control board chamber 31 with an adhesive, and between the vacuum heat insulating material 400 and the inner box 750. May be filled with a rigid urethane foam as an adhesive so as to have a predetermined thickness (for example, 1 mm or more, preferably 3 mm or more, and 11 mm or less, preferably 6 mm or less).

また、本実施の形態では、制御基板室３１を冷蔵庫１の上面に設けて真空断熱材４００で周囲を断熱する構成であるが、インバータ駆動回路部品などの半導体部品にワイドバンドギャップ半導体を使用するようにすれば、制御基板室３１の周囲を真空断熱材４００やウレタン断熱材で覆って制御基板室３１内が高温環境下となっても問題ない。また、インバータ駆動回路部品などの半導体部品にワイドバンドギャップ半導体を使用するようにすれば、制御基板室３１を高温環境下となる機械室１Ａ内に配置しても良い。ワイドバンドギャップ半導体は、従来のＳｉ半導体に比べて高温度環境下であっても故障しにくく動作可能なので、制御基板室３１を断熱材で覆っても問題ない。また、制御基板室３１を高温環境下となる機械室１Ａ内に配置する場合であっても制御基板室３１の周囲に断熱材などを設けて制御基板室３１内の温度が高温とならないように断熱する必要がないので、制御基板室の仕様を簡素化でき、低コストの圧縮機や機器を得ることができる。また、制御基板室３１を断熱する必要がないため、制御基板室３１の大きさを断熱材の厚さ分だけ高さを薄く（あるいは幅や奥行きを小さく）小形化できるので、真空断熱材４００と制御基板室３１、真空断熱材４００と内箱７５０を直接、接着剤で接着するようにすれば、断熱材としてのウレタンを充填する必要がなくなるので、制御基板室３１が設けられる壁面（たとえば上面壁や背面壁など）の壁面厚さを小さくすることが可能となり、その分、貯蔵室内容積（庫内容積）を大きくできる。   In the present embodiment, the control board chamber 31 is provided on the upper surface of the refrigerator 1 and the surroundings are thermally insulated by the vacuum heat insulating material 400. However, a wide band gap semiconductor is used for semiconductor components such as inverter drive circuit components. By doing so, there is no problem even if the control substrate chamber 31 is covered with the vacuum heat insulating material 400 or the urethane heat insulating material and the inside of the control substrate chamber 31 is in a high temperature environment. Further, if a wide band gap semiconductor is used for semiconductor components such as inverter drive circuit components, the control board chamber 31 may be disposed in the machine room 1A under a high temperature environment. Since the wide band gap semiconductor can operate less easily even under a high temperature environment as compared with the conventional Si semiconductor, there is no problem even if the control substrate chamber 31 is covered with a heat insulating material. Further, even when the control board chamber 31 is disposed in the machine room 1A under a high temperature environment, a heat insulating material or the like is provided around the control board chamber 31 so that the temperature in the control board chamber 31 does not become high. Since it is not necessary to insulate, the specifications of the control board chamber can be simplified, and low-cost compressors and equipment can be obtained. Further, since there is no need to insulate the control board chamber 31, the size of the control board chamber 31 can be reduced in size (or reduced in width and depth) by the thickness of the heat insulating material. If the control board chamber 31, the vacuum heat insulating material 400 and the inner box 750 are directly bonded with an adhesive, it is not necessary to fill urethane as a heat insulating material. It is possible to reduce the wall thickness of the upper wall and the rear wall, and accordingly, the storage chamber volume (internal volume) can be increased.

また、制御基板室３１がスペースの関係で従来では設置できなかった圧縮機１２の周囲空間（たとえば圧縮機１２の端子箱の上部空間や側面空間（あるいは周囲空間）など）に設置できるようになるので、制御基板室３１の設置の自由度（設計の自由度）が向上し、たとえば機械室１Ａ内のスペースの有効利用のできる冷蔵庫や空調機などの機器が得られる。   Further, the control board chamber 31 can be installed in the surrounding space of the compressor 12 (for example, the upper space or the side space (or the surrounding space) of the terminal box of the compressor 12) that could not be installed conventionally due to the space. Therefore, the degree of freedom (design degree of freedom) of installing the control board chamber 31 is improved, and for example, a device such as a refrigerator or an air conditioner that can effectively use the space in the machine room 1A is obtained.

（除霜用ヒータ、除霜水利用）
冷蔵庫１の背面最下部（あるいは背面最上部）に設けられている機械室１Ａには圧縮機１２が配されている。冷蔵庫１は、冷凍サイクルを備えており、圧縮機１２は冷凍サイクルを構成する１部品であり機械室１Ａに配置されており、冷凍サイクル内の冷媒を圧縮する作用を有する。圧縮機１２で圧縮された冷媒は凝縮器（図示せず）において凝縮される。凝縮された状態の冷媒は減圧装置である毛細管（図示せず）や膨張弁（図示せず）において減圧される。冷却器１３は、冷蔵庫の冷凍サイクルを構成する１部品で冷却器室１３１に配置されている。減圧装置にて減圧された冷媒は、冷却器１３において蒸発し、この蒸発時の吸熱作用により冷却器１３周辺の気体は冷却される。冷気循環用ファン１４は冷却器室１３１内で冷却器１３の近傍に配置されており、冷却器１３周辺で冷却された冷気を冷気風路（例えば、切替室冷気風路１６や冷蔵室冷気風路５０など）を介して冷蔵庫１の貯蔵室である各室（冷蔵室２、製氷室３、切替室４、野菜室５、冷凍室６）へと送風するためのものである。 (Defrost heater, defrost water use)
A compressor 12 is disposed in a machine room 1A provided at the lowermost rear part (or uppermost rear part) of the refrigerator 1. The refrigerator 1 is provided with a refrigeration cycle, and the compressor 12 is a component that constitutes the refrigeration cycle and is disposed in the machine room 1A, and has an action of compressing a refrigerant in the refrigeration cycle. The refrigerant compressed by the compressor 12 is condensed in a condenser (not shown). The condensed refrigerant is decompressed in a capillary tube (not shown) or an expansion valve (not shown) which is a decompression device. The cooler 13 is a component that constitutes the refrigeration cycle of the refrigerator and is disposed in the cooler chamber 131. The refrigerant decompressed by the decompression device evaporates in the cooler 13, and the gas around the cooler 13 is cooled by the endothermic action during the evaporation. The cool air circulation fan 14 is disposed in the cooler chamber 131 in the vicinity of the cooler 13, and cools the cool air around the cooler 13 as a cool air path (for example, the switching chamber cool air path 16 or the refrigerating room cool air wind). It is for ventilating to each room (refrigeration room 2, ice making room 3, switching room 4, vegetable room 5, freezing room 6) which is a storage room of refrigerator 1 via way 50 etc.).

冷却器室１３１内に設けられている冷却器１３の下方には冷却器１３の除霜を行う除霜手段である除霜用ヒータ１５０（除霜用のガラス管ヒータで、例えば、石英ガラス管内に石英ガラス管を透過する波長０．２μｍ〜４μｍの光を出すカーボン繊維が用いられたカーボンヒータなど）が設けられている。冷却器１３と除霜用ヒータ１５０の間で除霜用ヒータ１５０の上部には、冷却器１３より落下してきた除霜水が直接除霜用ヒータ１５０に当たらない様に、ヒータルーフ１５１が設けられている。除霜用ヒータ１５０にカーボンヒータなどの黒色媒体のヒータを使用すれば、輻射伝熱により冷却器１３の霜を効率的に溶かすことができるため表面温度を低温度（約７０℃〜８０℃）にすることが可能となり、冷凍サイクルに使用される冷媒に可燃性冷媒（例えば、炭化水素冷媒であるイソブタンなど）を使用している場合に冷媒漏れなどが発生しても着火の危険性が低減できる。また、ニクロム線ヒータに比べて輻射伝熱により冷却器１３の霜を効率的に溶かすことができるため冷却器１３に着霜した霜が除々に溶けるようになり霜が塊となってどさっと落下しにくくなるので、ヒータルーフ１５１に落下したときの落下音が低減できるので、低騒音で除霜効率の良い冷蔵庫が提供できる。   Below the cooler 13 provided in the cooler chamber 131 is a defrosting heater 150 (a defrosting glass tube heater, which is a defrosting means for defrosting the cooler 13, for example, in a quartz glass tube. And a carbon heater using carbon fibers that emit light having a wavelength of 0.2 μm to 4 μm that is transmitted through the quartz glass tube. A heater roof 151 is provided above the defrosting heater 150 between the cooler 13 and the defrosting heater 150 so that the defrosting water falling from the cooler 13 does not directly hit the defrosting heater 150. ing. If a black medium heater such as a carbon heater is used as the defrosting heater 150, the frost in the cooler 13 can be efficiently melted by radiant heat transfer, so the surface temperature is low (about 70 ° C. to 80 ° C.). If a flammable refrigerant (such as isobutane, which is a hydrocarbon refrigerant) is used as the refrigerant used in the refrigeration cycle, the risk of ignition is reduced even if refrigerant leakage occurs. it can. Moreover, since the frost of the cooler 13 can be efficiently melted by radiant heat transfer as compared with the nichrome wire heater, the frost formed on the cooler 13 gradually melts, and the frost quickly falls into a lump. Therefore, since the falling sound when falling on the heater roof 151 can be reduced, a refrigerator with low noise and good defrosting efficiency can be provided.

ここで、除霜用ヒータ１５０は、冷却器１３に一体に組み込まれたかち込みタイプのヒータであっても良い。また、ガラス管タイプヒータとかち込みタイプヒータを併用しても良い。冷却器１３で生成される除霜水あるいはヒータルーフ１５１に落下した除霜水は、冷却器室内で落下して冷却器室１３１の下方に設けられている除霜水受け部１５４を介して除霜水排出口１５５より冷蔵庫外部（たとえば機械室１Ａに設けられている蒸発皿等）に排出される。   Here, the defrosting heater 150 may be a stowage type heater integrally incorporated in the cooler 13. A glass tube type heater and a bite type heater may be used in combination. The defrost water generated in the cooler 13 or the defrost water dropped on the heater roof 151 falls in the cooler chamber and is defrosted via the defrost water receiving portion 154 provided below the cooler chamber 131. The water is discharged from the water discharge port 155 to the outside of the refrigerator (for example, an evaporating dish provided in the machine room 1A).

ここで、冷凍室用冷却器と冷蔵室用冷却器の２つの冷却器（蒸発器）が設けられている場合には、冷蔵室用冷却器においては、冷凍室用冷却器に比べて蒸発温度を比較的高く設定できるので、冷却器への霜の付着が少ない。したがって、除霜用ヒータ１５０が不要となるので、ヒータルーフ１５１も不要となる。したがって、冷却器１３で生成される除霜水は、冷却器室内で冷却器室１３１の下部に設けられている除霜水受け部１５４に直接落下して除霜水排出口１５５より冷蔵庫外部（たとえば機械室１Ａに設けられている蒸発皿等）に排出される。   Here, in the case where two coolers (evaporators), that is, a freezer cooler and a refrigerating room cooler, are provided, the refrigerating room cooler has an evaporation temperature as compared with the freezer cooler. Can be set relatively high, so that there is little adhesion of frost to the cooler. Accordingly, since the defrosting heater 150 is not required, the heater roof 151 is also unnecessary. Accordingly, the defrost water generated in the cooler 13 falls directly to the defrost water receiving portion 154 provided in the lower part of the cooler chamber 131 in the cooler chamber, and is external to the refrigerator from the defrost water discharge port 155 ( For example, it is discharged to an evaporating dish or the like provided in the machine room 1A.

冷凍室用冷却器と冷蔵室用冷却器の２つの冷却器（蒸発器）が設けられている場合には、冷蔵室２の下部（略密閉容器２Ｘ、２Ｙ）の後方の貯蔵室背面あるいは野菜室５の背面に冷蔵室用冷却器が設けられるので、ミスト装置２００を冷蔵室２の貯蔵品収納空間の背面壁あるいは略密閉容器２Ｘ、２Ｙの背面の後方の貯蔵室背面壁あるいは野菜室５の背面壁などに設ければ良い。ミスト装置２００の水供給手段として冷蔵室用冷却器で生成される除霜水を使用することが可能であり、冷却器室１３１内で冷却器１３の下方に配置されるヒータルーフ１５１の代わりに冷蔵室用冷却器で生成される除霜水を受けて溜める容器を配置すれば良い。この場合、容器の上部に設けられる水排出口容器より水があふれた場合にあふれた水を除霜水排出口１５５より冷蔵庫外部に排出させれば、容器上部に設けられる水排出口より溢れた水の処理が不要になる。したがって、容器を冷却器室１３１内に設け、容器は冷蔵室用冷却器の下方で、除霜水排出口１５５よりも上方に設ける方が良い。また、ミスト装置２００の放電電極は、容器よりも上方位置であって冷蔵室用冷却器と同等高さ位置（冷却器の前面側位置）あるいは冷蔵室用冷却器と容器の間の位置に設ける方が容器内の水を放電電極に毛細管現象などで供給する場合に水の供給経路が短くできるので良い。   When two coolers (evaporators), a freezer cooler and a refrigerating room cooler, are provided, the rear of the storage room or the vegetable behind the lower part of the refrigerating room 2 (substantially sealed containers 2X, 2Y) Since the refrigerator for the refrigerator compartment is provided on the back surface of the chamber 5, the mist device 200 is attached to the back wall of the storage space of the stored item in the refrigerator compartment 2 or the rear wall of the storage chamber behind the substantially sealed containers 2X and 2Y or the vegetable compartment 5 It may be provided on the back wall of the door. It is possible to use defrosted water generated by the refrigerator for the refrigerator compartment as the water supply means of the mist device 200, and refrigerate instead of the heater roof 151 disposed below the condenser 13 in the refrigerator chamber 131. What is necessary is just to arrange | position the container which receives and accumulates the defrost water produced | generated with the cooler for rooms. In this case, if the water overflows from the water outlet container provided at the upper part of the container, if the overflowed water is discharged from the defrost water outlet 155 to the outside of the refrigerator, it overflows from the water outlet provided at the upper part of the container. Water treatment becomes unnecessary. Therefore, it is better to provide the container in the cooler chamber 131 and to provide the container below the cooler cooler and above the defrost water discharge port 155. Further, the discharge electrode of the mist device 200 is provided at a position above the container and at the same height as the refrigerator for the refrigerator (position on the front side of the refrigerator) or between the refrigerator for the refrigerator and the container. However, when water in the container is supplied to the discharge electrode by capillary action or the like, the water supply path can be shortened.

ミスト装置２００は、図に示すように冷凍室６の下方に隣接して設けられる野菜室５の上面壁（上面の仕切壁２４）の凹部内に少なくとも一部が収納されるように設けられており、ミスト装置２００が設けられる貯蔵室（野菜室５）の上部に隣接して設けられる他の貯蔵室（冷凍室６）内の冷気を利用して放熱部に結露水を発生させてこの結露水を使用して放電電極に電圧を印加することで放電電極にミストを発生させるようにしても良い。   As shown in the figure, the mist device 200 is provided so that at least a part of the mist device 200 is housed in a recess in the upper surface wall (upper partition wall 24) of the vegetable chamber 5 provided adjacent to the lower portion of the freezer chamber 6. The dew condensation water is generated in the heat radiating section using the cold air in the other storage room (freezer room 6) provided adjacent to the upper part of the storage room (vegetable room 5) where the mist device 200 is provided. Mist may be generated in the discharge electrode by applying a voltage to the discharge electrode using water.

図９、図１０において、貯蔵室内照明装置９００は、たとえば貯蔵室である冷蔵室２の内壁の天井壁（上面壁）７４０に設けられており、複数のＬＥＤにより構成されている。ここで、照明装置９００を貯蔵室内の側壁７９０や底面壁７８０や仕切壁２４に設けても良い。照明装置９００の複数のＬＥＤは、棚８０の前縁よりも冷蔵庫１の前面側に設けられており、貯蔵室内を棚８０にさえぎられること無く上方から下方まで満遍なく照射できる。また、照明装置９００の複数のＬＥＤのうち、少なくとも１つは、貯蔵室扉（例えば冷蔵室扉７）が開放された時に貯蔵室扉（例えば冷蔵室扉７）に設けられる扉ポケットを照射できるように光軸が配置されているので、夜間など冷蔵庫１の周囲が薄暗い場合であっても、貯蔵室内だけでなく、扉ポケットも照射できるので、ユーザにとって使い勝手の良い冷蔵庫が得られる。   9 and 10, the storage room lighting device 900 is provided on a ceiling wall (upper surface wall) 740 of the inner wall of the refrigerating room 2 that is a storage room, for example, and includes a plurality of LEDs. Here, the lighting device 900 may be provided on the side wall 790, the bottom wall 780, or the partition wall 24 in the storage chamber. Several LED of the illuminating device 900 is provided in the front side of the refrigerator 1 rather than the front edge of the shelf 80, and it can irradiate uniformly from upper direction to the downward direction without being blocked by the shelf 80 in the storage room. In addition, at least one of the plurality of LEDs of the lighting device 900 can irradiate a door pocket provided on the storage room door (for example, the refrigeration room door 7) when the storage room door (for example, the refrigeration room door 7) is opened. Thus, even when the surroundings of the refrigerator 1 are dim, such as at night, not only the storage room but also the door pocket can be irradiated, so that a user-friendly refrigerator can be obtained.

以上は、貯蔵室の背面壁７３０に設けられる冷気風路７６０が、凹部４４０を形成する内箱７５０に対して別部品（たとえば、第１風路部品７６２）で形成されている例であるが、第１風路部品７６２を内箱７５０で一体に成形あるいは形成しても良い。この場合、背面壁７３０を形成する内箱７５０に形成される凹部４４０の幅方向（左右方向）の略中央部位置の内箱を上下方向にわたって断面円弧状（あるいはアーチ形状、あるいはＵ字形状）の突出部を形成してにこの突出部が貯蔵室内側に突出するように成形して第１風路部品７６２の代用とすれば良い。そして、この内箱で形成された円弧形状（あるいはアーチ形状、あるいはＵ字形状）の突出部と真空断熱材４００との間の空間を冷気風路７６０として使用しても良い。この円弧形状の突出部と真空断熱材４００だけで冷気風路７６０を形成するのが困難な場合には、突出部と真空断熱材４００との間の空間に断面楕円形状などの第２風路部品７６４を設ければ良い。このように内箱７５０で第１風路部品７６２を代用するようにすれば、第１風路部品７６２が不要になり、第１風路部品を内箱７５０などに組付ける必要がなくなり組立性も改善できるので、部品点数が少なく低コストで意匠性の良い断熱箱体、冷蔵庫、機器が得られる。   The above is an example in which the cold air passage 760 provided on the back wall 730 of the storage chamber is formed as a separate component (for example, the first air passage component 762) with respect to the inner box 750 that forms the recess 440. The first air passage component 762 may be integrally formed or formed with the inner box 750. In this case, the inner box at the substantially central position in the width direction (left-right direction) of the concave portion 440 formed in the inner box 750 forming the back wall 730 is circular in cross section (or arched or U-shaped) in the vertical direction. The first air passage component 762 may be substituted by forming the projecting portion so that the projecting portion protrudes toward the storage chamber. Then, a space between the arc-shaped (or arched or U-shaped) protrusion formed by the inner box and the vacuum heat insulating material 400 may be used as the cold air duct 760. When it is difficult to form the cold air passage 760 with only the arc-shaped protrusion and the vacuum heat insulating material 400, a second air passage having an elliptical cross section or the like is formed in the space between the protrusion and the vacuum heat insulating material 400. A component 764 may be provided. If the first air path component 762 is substituted for the inner box 750 in this way, the first air path component 762 becomes unnecessary, and it is not necessary to assemble the first air path component in the inner box 750 or the like. Therefore, it is possible to obtain a heat-insulated box, a refrigerator, and a device that are low in cost and good in design with a small number of parts.

（別の断熱箱体、冷蔵庫）
図１１は、本発明の実施の形態１に係る断熱箱体の正面断面図である。図１２は、この断熱箱体の背面図である。また、図１３は、この断熱箱体の前面側から見た斜視図である。図１４は、断熱箱体を背面側（後ろ側）から見た斜視図である。また、図２２は別の断熱箱体の背面図である。図１〜図１０と同等部分は、同一の符号を付して説明は省略する。なお、真空断熱材４００は、実際には外箱７１０と内箱７５０との間に形成される壁内空間３１５に配置されるものである。しかしながら、図１２では、冷蔵庫１の背面壁に配置された真空断熱材４００の形状の理解を容易とするため、外箱７１０の背面を透過して真空断熱材４００を示している（つまり、真空断熱材４００を実線で示している）。また、図１３では、レール７５５の図示を省略している。 (Another heat insulation box, refrigerator)
FIG. 11 is a front cross-sectional view of the heat insulation box according to Embodiment 1 of the present invention. FIG. 12 is a rear view of the heat insulation box. Moreover, FIG. 13 is the perspective view seen from the front side of this heat insulation box. FIG. 14 is a perspective view of the heat insulating box as viewed from the back side (rear side). FIG. 22 is a rear view of another heat insulating box. Parts equivalent to those in FIGS. 1 to 10 are denoted by the same reference numerals and description thereof is omitted. Note that the vacuum heat insulating material 400 is actually disposed in the wall space 315 formed between the outer box 710 and the inner box 750. However, in FIG. 12, in order to facilitate understanding of the shape of the vacuum heat insulating material 400 disposed on the back wall of the refrigerator 1, the vacuum heat insulating material 400 is shown through the back surface of the outer box 710 (that is, vacuum). The heat insulating material 400 is indicated by a solid line). In FIG. 13, the rail 755 is not shown.

冷蔵庫１は、例えば金属からなる外箱７１０と、例えば樹脂からなる内箱７５０とから構成される断熱箱体７００を備えている。そして、外箱７１０と内箱７５０との間に形成される壁内空間３１５（たとえば冷蔵庫１あるいは断熱箱体７００の天面、左右側面、背面及び底面部）に断熱材としての硬質ウレタンフォーム及び／または真空断熱材４００が配設（充填）されている。   The refrigerator 1 includes a heat insulating box 700 including an outer box 710 made of, for example, metal and an inner box 750 made of, for example, resin. Further, a hard urethane foam as a heat insulating material is formed in the wall space 315 formed between the outer box 710 and the inner box 750 (for example, the top surface, the left and right side surfaces, the back surface, and the bottom surface of the refrigerator 1 or the heat insulating box 700). The vacuum heat insulating material 400 is disposed (filled).

本実施の形態に係る冷蔵庫１を構成する断熱箱体７００は、天面及び底面及び側面が閉塞された有底角筒形状（略直方体形状）に形成され、前面部が開口した開口部を有する形状となっている。そして、断熱箱体７００は、例えば複数（図では２枚）の仕切壁２４によって、複数の貯蔵室（たとえば冷蔵室２、製氷室３、切替室４、野菜室５、冷凍室６など）に区画されている。これら仕切壁２４には、前面側に板金により成形された板金カバー３４（例えば、厚さ０．５ｍｍ以上）がネジ等の固定部材によって取り付けられている。この板金カバー３４をネジ等で断熱箱体７００に締結することにより、仕切壁２４が断熱箱体７００に取り付けられる構成となっている。このように、板金カバー３４を用いて仕切壁２４を断熱箱体７００に取り付けることにより、断熱箱体７００の強度を向上させることができる。   The heat insulating box 700 constituting the refrigerator 1 according to the present embodiment is formed in a bottomed rectangular tube shape (substantially rectangular parallelepiped shape) in which the top surface, the bottom surface, and the side surfaces are closed, and has an opening portion whose front surface portion is open. It has a shape. And the heat insulation box 700 is divided into a plurality of storage rooms (for example, the refrigeration room 2, the ice making room 3, the switching room 4, the vegetable room 5, the freezing room 6, etc.) by a plurality of (two in the figure) partition walls 24, for example. It is partitioned. A sheet metal cover 34 (for example, a thickness of 0.5 mm or more) formed of a sheet metal on the front side is attached to these partition walls 24 by a fixing member such as a screw. The partition wall 24 is attached to the heat insulation box 700 by fastening the sheet metal cover 34 to the heat insulation box 700 with screws or the like. Thus, the strength of the heat insulation box 700 can be improved by attaching the partition wall 24 to the heat insulation box 700 using the sheet metal cover 34.

また、本実施の形態に係る冷蔵庫１あるいは断熱箱体７００には、たとえば冷蔵室２や野菜室５や冷凍室６などの貯蔵室に、貯蔵室の中に設置される棚８０あるいは引き出し式の貯蔵室（たとえば引き出し式の扉あるいは引き出しケース等）を支えるためのレール部（たとえばレールあるいはレール保持部）７５５が側壁７９０に形成されている。   Further, in the refrigerator 1 or the heat insulating box 700 according to the present embodiment, for example, in a storage room such as the refrigerator compartment 2, the vegetable compartment 5, and the freezer compartment 6, a shelf 80 installed in the storage room or a drawer type. A rail portion (for example, a rail or a rail holding portion) 755 for supporting a storage chamber (for example, a drawer type door or a drawer case) is formed on the side wall 790.

このような構成の断熱箱体７００は、例えば次のように製造される。まず、真空断熱材４００をあらかじめ外箱７１０に第２の接着剤により接着固定する。そして、外箱７１０と内箱７５０とを例えば壁内空間（外箱７１０と内箱７５０との間に形成される空間）３１５を設けた状態で治具や接着などにより固定する。その後、図１４に示すように、断熱箱体７００の背面側を上にした状態で、背面側の幅方向端部に複数形成されたウレタンなどの注入口７０３、７０４より液体状の硬質ウレタンフォームの原料（原液）を注入して空間３１５内で一体発泡を行わせることにより、壁内空間３１５内を硬質ウレタンフォームで充填する。   The heat insulation box 700 having such a configuration is manufactured as follows, for example. First, the vacuum heat insulating material 400 is bonded and fixed to the outer box 710 in advance with a second adhesive. Then, the outer box 710 and the inner box 750 are fixed by, for example, a jig or an adhesive in a state where an inner wall space (a space formed between the outer box 710 and the inner box 750) 315 is provided. After that, as shown in FIG. 14, in the state where the back side of the heat insulation box 700 is turned up, a liquid rigid urethane foam from a plurality of inlets 703 and 704 such as urethane formed at the widthwise end on the back side. The raw material (stock solution) is injected to cause integral foaming in the space 315, thereby filling the interior space 315 with rigid urethane foam.

本実施の形態では、真空断熱材４００が配設されている部位（たとえば凹部４４０あるいは第２の凹部４４１あるいは側壁７９０あるいは扉（７、８、９、１０、１１）等）においては、ウレタンを断熱材として使用するのが主目的でなく、接着剤としての使用を主目的としている。すなわち、真空断熱材４００が配設されている部位においては、断熱性能の確保は、真空断熱材４００の被覆率あるいは充填率を所定値以上とすることで対応するようにしている。たとえば凹部４４０の一部範囲あるいは全範囲では、真空断熱材４００と内箱７５０との間の空間に塗布あるいは充填される、たとえば硬質ウレタンを接着機能を主目的とした接着剤として使用するようにしているため、壁（冷蔵庫１の背面壁７３０）内の真空断熱材４００と内箱７５０（あるいは外箱７１０）との間の空間３１５に塗布、あるいは充填される接着剤は、接着剤としての接着力（接着強度、接着性能）を満足できれば良く、また製品適用時に接着材に起因する接着不良（剥がれや変形）などの品質不良を起こさなければ良いので、接着剤としての所定厚さは薄い方が良く、１１ｍｍ以下程度（たとえば１０ｍｍより小さい方がよい）、好ましくは６ｍｍ以下程度が良い。   In the present embodiment, urethane is used in a portion where the vacuum heat insulating material 400 is disposed (for example, the recess 440, the second recess 441, the side wall 790, the door (7, 8, 9, 10, 11), etc.). The main purpose is not to use as a heat insulating material, but to use as an adhesive. That is, in the part where the vacuum heat insulating material 400 is disposed, ensuring of the heat insulating performance is handled by setting the coverage or filling rate of the vacuum heat insulating material 400 to a predetermined value or more. For example, in a partial range or the entire range of the concave portion 440, for example, hard urethane that is applied or filled in the space between the vacuum heat insulating material 400 and the inner box 750 is used as an adhesive mainly for the adhesive function. Therefore, the adhesive applied or filled in the space 315 between the vacuum heat insulating material 400 and the inner box 750 (or outer box 710) in the wall (back wall 730 of the refrigerator 1) is used as an adhesive. As long as the adhesive strength (adhesive strength, adhesive performance) can be satisfied, and quality defects such as poor adhesion (peeling and deformation) due to the adhesive material do not occur at the time of product application, the predetermined thickness as an adhesive is thin. It is better, about 11 mm or less (for example, smaller than 10 mm is preferable), preferably about 6 mm or less.

また、接着剤としての接着力（接着性能）を満足し、接着時の箱体強度を所定値以上確保するためには、接着剤の接着厚さが所定の厚さ以上である必要があり、１ｍｍ以上が望ましい。ここで、真空断熱材４００の表面の凹凸や内箱７５０（あるいは外箱７１０）の表面の凹凸があっても真空断熱材４００と内箱（あるいは外箱）との間の空間の略全面に接着剤が塗布されるかあるいは充填されるなどして真空断熱材４００と内箱７５０（あるいは外箱７１０）との間の空間３１５の凹凸のある部分も含めて略全面に接着剤が行き渡る方がよいので、好ましくは３ｍｍ以上程度が良い。   Moreover, in order to satisfy the adhesive strength (adhesive performance) as an adhesive and to ensure the box strength at the time of adhesion over a predetermined value, the adhesive thickness of the adhesive must be a predetermined thickness or more, 1 mm or more is desirable. Here, even if there is unevenness on the surface of the vacuum heat insulating material 400 or unevenness on the surface of the inner box 750 (or outer box 710), the surface of the space between the vacuum heat insulating material 400 and the inner box (or outer box) is almost entirely. A method in which the adhesive spreads over substantially the entire surface including the uneven portion of the space 315 between the vacuum heat insulating material 400 and the inner box 750 (or the outer box 710) by applying or filling the adhesive. Therefore, the thickness is preferably about 3 mm or more.

ここで、背面壁に設けられている凹部４４０に限らず、背面壁７３０の他の部分や側壁７９０や天面壁７４０や底面壁７８０や仕切壁２４などにおいても、真空断熱材４００が設けられている場合には真空断熱材４００と対向する部位は、凹部４４０と同様に真空断熱材４００と壁面（内箱７５０あるいは外箱７１０あるいは仕切壁）とが直接接着するようにしても良く、壁内空間３１５は接着剤としての所定厚さが確保できれば良い。したがって、接着剤としての所定厚さは、１１ｍｍ以下程度（たとえば１０ｍｍより小さい方が良い）、好ましくは６ｍｍ以下程度が良く、また、１ｍｍ以上程度、好ましくは３ｍｍ以上程度が良い。   Here, the vacuum heat insulating material 400 is provided not only in the recess 440 provided in the back wall, but also in other parts of the back wall 730, the side wall 790, the top wall 740, the bottom wall 780, the partition wall 24, and the like. In the case where the vacuum heat insulating material 400 is opposed to the vacuum heat insulating material 400, the vacuum heat insulating material 400 and the wall surface (inner box 750 or outer box 710 or partition wall) may be directly bonded as in the case of the recess 440. The space 315 only needs to have a predetermined thickness as an adhesive. Accordingly, the predetermined thickness as the adhesive is about 11 mm or less (for example, preferably smaller than 10 mm), preferably about 6 mm or less, and about 1 mm or more, preferably about 3 mm or more.

ここで、断熱箱体７００の背面側においては、ウレタンなどの発泡断熱材の原液を充填する注入口７０３、７０４が設けられているので、注入口７０３、７０４と対向する位置の断熱箱体７００の内部の空間（外箱７１０と内箱７５０の間の空間）３１５には、注入口７０３、７０４より硬質ウレタンフォームを充填する必要があるため真空断熱材４００を配置することが難しい。（注入口７０３、７０４に真空断熱材４００が干渉するとウレタンの原液の注入が困難になる。）そこで、本実施の形態では、断熱箱体７００の背面側においては、図１２に示すように、注入口７０３、７０４と対向する部位を除いて真空断熱材４００を配設している（注入口７０３、７０４に真空断熱材４００が干渉しないように真空断熱材４００の注入口７０３、７０４と対向する部位に切欠き部（開口あるいは切り欠き）３３を設けている）。たとえば、注入口７０３、７０４と対向する部位が切り欠かれた真空断熱材４００を使用するようにして注入口７０３、７０４と対向する部位には切欠き部３３がくるように真空断熱材４００を配置してウレタンの充填、流動を妨げないようしている。   Here, since the inlets 703 and 704 are provided on the back side of the heat insulating box 700 and filled with a stock solution of foam insulating material such as urethane, the heat insulating box 700 at a position facing the inlets 703 and 704 is provided. The space (space between the outer box 710 and the inner box 750) 315 needs to be filled with hard urethane foam from the inlets 703 and 704, so that it is difficult to dispose the vacuum heat insulating material 400. (If the vacuum heat insulating material 400 interferes with the inlets 703 and 704, it becomes difficult to inject the urethane stock solution.) Therefore, in the present embodiment, on the back side of the heat insulating box 700, as shown in FIG. The vacuum heat insulating material 400 is disposed except for the portion facing the injection ports 703 and 704 (opposite the injection ports 703 and 704 of the vacuum heat insulating material 400 so that the vacuum heat insulating material 400 does not interfere with the injection ports 703 and 704. A notch (opening or notch) 33 is provided at the site to be cut). For example, the vacuum heat insulating material 400 is used so that the notch 33 comes to the part facing the inlets 703 and 704 by using the vacuum heat insulating material 400 where the part facing the inlets 703 and 704 is cut out. It is placed so as not to hinder urethane filling and flow.

また、断熱箱体７００の背面側に配設される真空断熱材４００は、たとえば、一体物ではなく、複数（例えば２個〜３個）に分割して並設し、注入口７０３、７０４と対向する部位に注入口７０３、７０４の大きさと略同等かそれ以上の切欠きや開口などの切欠き部３３を有する真空断熱材４００を配設するようにすれば良い。ここで、真空断熱材４００は分割する必要はなく、１枚の真空断熱材４００であっても良い。真空断熱材４００に切欠きや開口を設けるなどして注入口７０３、７０４から充填されるウレタンが断熱箱体７００内の必要な部位に充填あるいは流動するのを抑制あるいは邪魔しなければ１枚の真空断熱材４００であっても良い。   Moreover, the vacuum heat insulating material 400 arrange | positioned at the back side of the heat insulation box 700 is divided into several (for example, 2-3 pieces), for example, not in one piece, and arranged in parallel, and with the inlets 703 and 704, What is necessary is just to arrange | position the vacuum heat insulating material 400 which has the notch part 33, such as a notch and opening substantially equal to or larger than the magnitude | size of the injection holes 703 and 704, in the site | part which opposes. Here, the vacuum heat insulating material 400 does not need to be divided and may be a single vacuum heat insulating material 400. If the urethane filled from the inlets 703 and 704 is prevented from filling or flowing into a necessary part in the heat insulating box 700 by providing a notch or an opening in the vacuum heat insulating material 400, one sheet is used. The vacuum heat insulating material 400 may be used.

真空断熱材４００は、本実施の形態では、略長方形状の４つの角部のうちの少なくとも１つの角部に切欠き部３３を有し、この切欠き部３３が注入口７０３、７０４に対向するように配置されている。真空断熱材４００は、断熱箱体７００に設置された状態では、注入口７０３、７０４と対向する位置の角部に切欠き部３３が形成されており、注入口７０３、７０４と対向する部位には真空断熱材４００の角部に形成された切欠き部３３を配置して、注入口７０３、７０４と真空断熱材４００が干渉しないように配置することで、真空断熱材４００の配設面積を大きくでき、かつ注入口７０３、７０４を避けて、真空断熱材４００を配置することができる（硬質ウレタンフォームの原液を真空断熱材４００に邪魔されることなく注入することができる）。したがって、断熱箱体あるいは断熱箱体の背面壁の外表面積に対する真空断熱材の配置面積の比率（被覆率）を大きくすることができ、また、箱体を形成する外箱と内箱との間の空間の容積に対する真空断熱材の容積の割合（真空断熱材の充填率）も大きくできるので、冷蔵庫あるいは断熱箱体の断熱性能を向上させることが可能となる。このような構成で真空断熱材４００を配設することにより、断熱性能に優れ、箱体強度を確保できる断熱箱体７００あるいは冷蔵庫１を提供することができる。ここで、真空断熱材４００に切欠き部３３を設けない場合には、真空断熱材４００を注入口７０３、７０４を避けて配置すれば良い。（真空断熱材４００が注入口７０３、７０４と干渉しない位置に配置すれば良い。）   In this embodiment, the vacuum heat insulating material 400 has a notch 33 at least one of four corners of a substantially rectangular shape, and the notch 33 faces the inlets 703 and 704. Are arranged to be. In the state where the vacuum heat insulating material 400 is installed in the heat insulating box 700, the notch 33 is formed at the corner portion at a position facing the injection ports 703 and 704, and the vacuum heat insulating material 400 is formed at a portion facing the injection ports 703 and 704. Arranges the notch 33 formed at the corner of the vacuum heat insulating material 400 so that the inlets 703 and 704 and the vacuum heat insulating material 400 do not interfere with each other. The vacuum heat insulating material 400 can be arranged avoiding the injection ports 703 and 704 (the stock solution of hard urethane foam can be injected without being obstructed by the vacuum heat insulating material 400). Accordingly, the ratio (coverage ratio) of the vacuum heat insulating material to the outer surface area of the heat insulating box or the back wall of the heat insulating box can be increased, and the space between the outer box and the inner box forming the box can be increased. Since the ratio of the volume of the vacuum heat insulating material to the volume of the space (the filling rate of the vacuum heat insulating material) can be increased, the heat insulating performance of the refrigerator or the heat insulating box can be improved. By disposing the vacuum heat insulating material 400 in such a configuration, it is possible to provide the heat insulating box 700 or the refrigerator 1 that is excellent in heat insulating performance and can secure the box strength. Here, when the notch 33 is not provided in the vacuum heat insulating material 400, the vacuum heat insulating material 400 may be disposed avoiding the inlets 703 and 704. (The vacuum heat insulating material 400 may be disposed at a position where it does not interfere with the inlets 703 and 704.)

ここで、注入口７０３、７０４は、側壁７９０を形成する外箱７１０と内箱７５０との間に位置するようにした方が望ましい。   Here, it is desirable that the inlets 703 and 704 be positioned between the outer box 710 and the inner box 750 that form the side wall 790.

なお、注入口７０３、７０４の形成位置はあくまでも一例であり、断熱箱体７００の形状、つまり外箱７１０と内箱７５０との間に形成される壁内空間３１５の形状に応じて、適宜形成すればよい。したがって、注入口７０３、７０４が設けられる位置は、断熱箱体７００あるいは冷蔵庫１の形状に応じて、任意の一側面（左側側面、右側側面、正面、背面、天面、底面等）に形成すればよい。   The formation positions of the inlets 703 and 704 are merely examples, and are appropriately formed according to the shape of the heat insulating box 700, that is, the shape of the wall space 315 formed between the outer box 710 and the inner box 750. do it. Therefore, the positions where the inlets 703 and 704 are provided are formed on any one side (left side, right side, front, back, top, bottom, etc.) according to the shape of the heat insulating box 700 or the refrigerator 1. That's fine.

図２２は本発明の実施の形態を表す別の断熱箱体７００の背面図である。図１〜図１４と同等部分は同一の符号を付して説明は省略する。図２２では、図１２と同様、冷蔵庫１の背面壁７３０に配置された真空断熱材４００の形状の理解を容易とするため、外箱７１０の背面を透過して真空断熱材４００を示している（つまり、真空断熱材４００を実線で示している）。   FIG. 22 is a rear view of another heat insulation box 700 representing the embodiment of the present invention. 1 to 14 are denoted by the same reference numerals, and description thereof is omitted. 22, in order to facilitate understanding of the shape of the vacuum heat insulating material 400 disposed on the back wall 730 of the refrigerator 1, as in FIG. 12, the vacuum heat insulating material 400 is shown through the back surface of the outer box 710. (In other words, the vacuum heat insulating material 400 is indicated by a solid line).

図２２では、断熱箱体７００の背面側に配設される硬質ウレタンフォームなどを充填あるいは注入する充填口（注入口）７０３、７０４は、断熱箱体７００の背面下部あるいは背面上部に設けられる機械室１Ａを除く背面壁部分の四隅近傍（４つの角部近傍）に４箇所設けられている。充填口（注入口）７０３、７０４の配置位置は、幅方向では箱体７００の左端あるいは右端から所定距離（幅方向内側端部位置）Ｙ１、上下方向では、上端あるいは下端あるいは機械室１Ａの端部から所定距離（上下方向内側端部位置）Ｙ２だけ離れた位置に設けられている。ここで、側壁７９０の厚さ（壁厚さ）をＴ１ｍｍ、充填口の幅方向長さ（円の場合は直径）をｒ１としたとき、注入口７０３、７０４の幅方向の所定距離（幅方向内側端部位置）Ｙ１は、充填口（注入口）７０３、７０４からウレタンなどの充填材を充填したときに側壁７９０内にウレタンなどの充填材がスムーズに流れるようにＴ１＋ｒ１以下が好ましい。たとえば側壁７９０の厚さが２０ｍｍ〜５０ｍｍ程度、充填口７０３、７０４の直径ｒ１は２５ｍｍ〜５０ｍｍ程度とした場合、充填口７０３、７０４を側壁７９０の端部から所定距離Ｔ０１ｍｍ（たとえば１０ｍｍ）以上離して配置するとすれば、所定距離Ｙ１はＴ０１＋ｒ１以上Ｔ１＋ｒ１以下となるので、３５ｍｍ以上８０ｍｍ以下程度が好ましい。   In FIG. 22, filling ports (injection ports) 703 and 704 for filling or injecting rigid urethane foam or the like disposed on the back side of the heat insulation box 700 are machines provided at the lower back or upper back of the heat insulation box 700. Four locations are provided near the four corners (near the four corners) of the back wall portion excluding the chamber 1A. The arrangement positions of the filling ports (injection ports) 703 and 704 are a predetermined distance (inner end position in the width direction) Y1 from the left end or right end of the box 700 in the width direction, and the upper end or lower end or the end of the machine room 1A in the vertical direction. It is provided at a position separated from the portion by a predetermined distance (vertical inner end position) Y2. Here, when the thickness (wall thickness) of the side wall 790 is T1 mm and the length in the width direction (diameter in the case of a circle) of the filling port is r1, a predetermined distance in the width direction of the injection ports 703 and 704 (width direction) The inner end position Y1 is preferably T1 + r1 or less so that the filler such as urethane flows smoothly into the side wall 790 when the filler such as urethane is filled from the filling ports (injection ports) 703 and 704. For example, when the thickness of the side wall 790 is about 20 mm to 50 mm and the diameter r1 of the filling ports 703 and 704 is about 25 mm to 50 mm, the filling ports 703 and 704 are separated from the end of the side wall 790 by a predetermined distance T01 mm (for example, 10 mm) or more. The predetermined distance Y1 is T01 + r1 or more and T1 + r1 or less, and is preferably about 35 mm or more and 80 mm or less.

また、注入口７０３、７０４の上下方向の所定距離（上下方向内側端部位置）Ｙ２は、充填口（注入口）７０３、７０４からウレタンなどの充填材を充填したときに天井壁あるいは底面壁あるいは機械室と貯蔵室間を仕切る断熱仕切壁の厚さ（壁厚さ）をＴ２ｍｍ、充填口の上下方向長さ（円の場合は直径）をｒ２としたとき、天井壁内あるいは底面壁内あるいは仕切壁内にウレタンなどの充填材がスムーズに流れるようにＴ２＋ｒ２以下が好ましく、天井壁あるいは底面壁あるいは仕切壁の厚さが２０ｍｍ〜５０ｍｍ程度、充填口７０３、７０４の直径ｒ２は２５ｍｍ〜５０ｍｍ程度であるので、充填口７０３、７０４を壁面の端部から所定距離Ｔ０２ｍｍ（たとえば１０ｍｍ）以上離して配置するとすれば、所定距離Ｙ２はＴ０２＋ｒ２以上Ｔ２＋ｒ２以下となるので、３５ｍ以上８０ｍｍ以下程度が好ましい。
ここで、所定距離Ｔ０１（あるいはＴ０２）は、外箱７１０に注入口７０３、７０４の穴加工を行うにあたって、注入口７０３、７０４が加工可能な距離（たとえば注入口が側壁７９０の外壁を形成する外板に干渉せず、また、注入口７０３、７０４の加工時に注入口７０３、７０４が破断や変形などを起こさない距離）、あるいはウレタン等の断熱材や接着剤の流動が阻害されない距離（たとえば、ウレタンなどの原液の流動が側壁７９０の外壁を形成する外板に邪魔されない距離、またはウレタンなどの原液の流動が側壁７９０内の外壁側に配置される真空断熱材に邪魔されない距離）である。所定距離Ｔ０１、Ｔ０２は、たとえば側壁７９０の外壁を形成する外板の板厚が０．６〜３ｍｍ程度、側壁７９０内で外壁側に配置される真空断熱材の厚さが１１ｍｍ以下（たとえば１０ｍｍより小さい方が好ましいので９．５ｍｍ）を想定すると、真空断熱材の厚さ（９．５ｍｍ）の方が板厚（０．６〜３ｍｍ）よりも大きいので、所定距離Ｔ０１（あるいはＴ０２）は、真空断熱材の厚さである９．５ｍｍ以上であれば良く、この場合には９．５ｍｍ以上であれば良いが、余裕代を考慮して１０ｍｍあるいは１０ｍｍ以上が好ましい。 Further, the predetermined distance in the vertical direction (upward / downward inner end position) Y2 of the inlets 703 and 704 is the ceiling wall or bottom wall when filling with a filler such as urethane from the filler ports (inlet ports) 703 and 704, or When the thickness (wall thickness) of the heat insulating partition wall separating the machine room and the storage room is T2 mm and the vertical length of the filling port (diameter in the case of a circle) is r2, the inside of the ceiling wall or the bottom wall or T2 + r2 or less is preferable so that a filler such as urethane flows smoothly in the partition wall, the thickness of the ceiling wall, the bottom wall, or the partition wall is about 20 mm to 50 mm, and the diameter r2 of the filling ports 703 and 704 is about 25 mm to 50 mm. Therefore, if the filling ports 703 and 704 are arranged at a predetermined distance T02 mm (for example, 10 mm) or more from the end of the wall surface, the predetermined distance Y2 is T02 + r2. Since the upper T2 + r2 less extent than 80mm or less 35m it is preferred.
Here, the predetermined distance T01 (or T02) is a distance at which the inlets 703, 704 can be processed when the holes 703, 704 are drilled in the outer box 710 (for example, the inlet forms the outer wall of the side wall 790). A distance that does not interfere with the outer plate and that does not cause breakage or deformation of the inlets 703 and 704 during processing of the inlets 703 and 704, or a distance that does not hinder the flow of a heat insulating material such as urethane or an adhesive (for example, , A distance where the flow of the raw solution such as urethane is not disturbed by the outer plate forming the outer wall of the side wall 790, or a distance where the flow of the raw solution such as urethane is not disturbed by the vacuum heat insulating material disposed on the outer wall side in the side wall 790) . The predetermined distances T01 and T02 are, for example, the thickness of the outer plate forming the outer wall of the side wall 790 is about 0.6 to 3 mm, and the thickness of the vacuum heat insulating material disposed on the outer wall side in the side wall 790 is 11 mm or less (for example, 10 mm) Assuming that the smaller one is 9.5 mm), the thickness (9.5 mm) of the vacuum heat insulating material is larger than the plate thickness (0.6 to 3 mm), so the predetermined distance T01 (or T02) is The thickness of the vacuum heat insulating material may be 9.5 mm or more. In this case, the thickness may be 9.5 mm or more, but 10 mm or 10 mm or more is preferable in consideration of a margin.

ここで、図８に示すように室内（貯蔵室内）側に突出する凸部４５０が設けられている場合には、充填口７０３、７０４を凸部４５０の設けられている範囲（凸部４５０の略三角形の斜辺４５６が背面壁７３０あるいは側壁７９０と接続される所定部位７９７、７９８の範囲）であればスムーズに充填されるので、所定距離Ｙ１は、凸部４５０の幅方向長さをＡ（幅方向凸部長さＡ）とすれば、Ｔ０１＋ｒ１以上Ｔ１＋Ａ以下が好ましく、所定距離Ｙ２は、凸部４５０の上下方向長さをＢ（上下方向凸部長さＢ）とすれば、Ｔ０２＋ｒ２以上Ｔ２＋Ｂ以下が好ましい。したがって、所定距離Ｙ１は、凸部４５０の長さＡをたとえば１８０ｍｍ〜２００ｍｍとすれば、２５０ｍｍ以下（好ましくは２３０ｍｍ以下程度）までは、充填されたウレタンなどの充填材が凸部４５０の斜辺部（円弧状であっても良い）４５６にぶつかっても斜辺部が傾斜しているためスムーズに側壁７９０内や天井壁７４０内などに注入できるので問題ない。
以上より、本実施の形態では、外箱７１０と内箱７５０とから形成され、少なくとも背面壁７３０、側壁７９０を有する箱体と、該箱体に設けられ、前面に開口部を有する貯蔵室２、３、４、５、６、７と、背面壁７３０内の外箱側に設けられる真空断熱材４００と、背面壁７３０の幅方向端部あるいは上下方向端部に設けられ、背面壁７３０内に介在部材である断熱材の原液を注入する注入口７０３、７０４と、を備え、前記注入口７０３、７０４は箱体の背面の上部あるいは下部の機械室１Ａを除いた背面壁（図２２では機械室１Ａを除いた背面壁の４隅、図１２では、機械室１Ａを除いた背面壁の左右端側）に設けられており、真空断熱材４００は、注入口７０３、７０４と対向する部位に注入口７０３、７０４と干渉しないように切り欠きまたは開口などの切り欠き部３３が設けられており、断熱材の厚さを１１ｍｍ以下（ばらつきや真空断熱材の表面の凹凸などを考慮すると１０ｍｍよりも小さい方が良い）にすれば、断熱箱体あるいは断熱箱体の背面壁の外表面積に対する真空断熱材の配置面積の比率（被覆率）を大きくすることができ、また、箱体を形成する外箱と内箱との間の空間の容積に対する真空断熱材の容積の割合（真空断熱材の充填率）も大きくできるので、冷蔵庫あるいは断熱箱体の断熱性能を向上させることが可能となる。
また、断熱材の密度を６０Ｋｇ／ｍ３より大きくすることにより箱体の強度（剛性）が向上し、信頼性の高い冷蔵庫が得られる。ただし、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加によるウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能悪化、コストＵＰ等の問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）は１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。
また、断熱材の厚さ／（前記断熱材の厚さ＋前記真空断熱材の厚さ）が０．３以下にすることにより、箱体の壁厚さを低減でき、しかも箱体強度、断熱性能とも向上できるので、室（たとえば貯蔵室）内の容積が大きく、高強度で断熱性能の良好な断熱箱体、冷蔵庫、機器が得られる。また、硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。また、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、壁厚さを小さくしても断熱性能を向上させることができる。
また、断熱材が硬質ウレタンフォームであり、硬質ウレタンフォームの曲げ弾性率を１５ＭＰａ以上、１５０ＭＰａ以下、真空断熱材４００の曲げ弾性率を２０ＭＰａ以上にすることにより、介在部材である硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。また、真空断熱材の剛性が向上するので、箱体強度が向上する。
また、真空断熱材は、少なくとも側壁７９０内及び背面壁７３０内に配置され、背面壁７３０と側壁７９０の外表面積に対する真空断熱材４００の配置面積の比率を７０％以上にすることにより、箱体変形量が小さく、高強度で剛性の高く、断熱性能が良好な断熱箱体、冷蔵庫、機器が得られる。
また、箱体を形成する前記外箱と前記内箱との間の空間の容積に対する前記真空断熱材の占める容積の割合が４０％以上にすることにより、箱体変形量が小さく、高強度で剛性の高く、断熱性能が良好な断熱箱体、冷蔵庫、機器が得られる。
また、真空断熱材は略四角形の板状であって、切り欠き部３３は、注入口７０３、７０４と対向する部位に注入口７０３、７０４と干渉しないように略四角形の４つの角部（４隅）のうちの少なくとも注入口７０３、７０４が設けられている角部に設けられているので、充填口（注入口）７０３、７０４からウレタンなどの充填材を充填したときに側天井壁内あるいは底面壁内あるいは仕切壁内にウレタンなどの充填材がスムーズに流れるようになる。注入口７０３、７０４が機械室１Ａを除く背面壁の４隅に設けられている場合には、真空断熱材４００の切り欠き部３３も注入口７０３、７０４と対向する４隅（略四角形状の真空断熱材４００の４つの角部）に設ければ良い。 Here, as shown in FIG. 8, in the case where the convex portion 450 protruding toward the room (storage chamber) side is provided, the filling ports 703 and 704 are arranged in the range where the convex portion 450 is provided (the convex portion 450. If the oblique side 456 of the substantially triangular shape is within a predetermined range 797 and 798 connected to the back wall 730 or the side wall 790, the filling is smoothly performed. Therefore, the predetermined distance Y1 sets the length in the width direction of the convex portion 450 to A ( The width direction convex portion length A) is preferably T01 + r1 or more and T1 + A or less, and the predetermined distance Y2 is T02 + r2 or more and T2 + B or less if the vertical length of the convex portion 450 is B (vertical direction convex portion length B). preferable. Accordingly, when the length A of the convex portion 450 is 180 mm to 200 mm, for example, the predetermined distance Y1 is up to 250 mm or less (preferably about 230 mm or less). (It may be arcuate) Even if it hits 456, since the hypotenuse part is inclined, it can be injected smoothly into the side wall 790, the ceiling wall 740, or the like.
As described above, in the present embodiment, the storage chamber 2 is formed of the outer box 710 and the inner box 750 and has at least the back wall 730 and the side wall 790, and the storage chamber 2 provided in the box and having an opening on the front surface. 3, 4, 5, 6, 7, the vacuum heat insulating material 400 provided on the outer box side in the back wall 730, and the back wall 730 provided at the width direction end or the vertical direction end Are provided with inlets 703 and 704 for injecting a stock solution of heat insulating material, which is an interposed member, and the inlets 703 and 704 are rear walls excluding the upper or lower machine chamber 1A on the back of the box (in FIG. 22). The four corners of the back wall excluding the machine room 1A, in FIG. 12, the left and right end sides of the back wall excluding the machine room 1A) are provided, and the vacuum heat insulating material 400 is opposed to the inlets 703 and 704. So as not to interfere with the inlets 703 and 704. If a notch 33 such as a notch or an opening is provided and the thickness of the heat insulating material is set to 11 mm or less (which is preferably smaller than 10 mm in consideration of variations, unevenness of the surface of the vacuum heat insulating material, etc.) The ratio (coverage ratio) of the vacuum insulation material to the outer surface area of the back wall of the box or heat insulation box can be increased, and the space between the outer box and the inner box forming the box can be increased. Since the ratio of the volume of the vacuum heat insulating material to the volume (the filling rate of the vacuum heat insulating material) can also be increased, it is possible to improve the heat insulating performance of the refrigerator or the heat insulating box.
Moreover, by making the density of the heat insulating material larger than 60 kg / m 3 , the strength (rigidity) of the box is improved, and a highly reliable refrigerator is obtained. However, if the density of heat insulating material such as urethane (such as rigid urethane foam) is too high, (1) cost increases due to increased urethane injection amount, and (2) urethane leakage occurs due to increased urethane injection pressure. (3) Mold for suppressing deformation of box and box holding member due to increase in foaming pressure at the time of urethane foaming etc. Mold for suppressing box deformation and box holding member for increasing adhesion and adhesive strength between urethane and the like Is difficult to remove from the box (it is difficult to remove from the box), and (4) problems such as sudden deterioration in heat insulation performance due to increased density of urethane, such as quality deterioration, performance deterioration, and cost increase. The density of a heat insulating material such as urethane (for example, a hard urethane foam) is 100 kg / m 3 or less (preferably 90 kg). / M 3 or less).
Further, by setting the thickness of the heat insulating material / (thickness of the heat insulating material + thickness of the vacuum heat insulating material) to 0.3 or less, the wall thickness of the box can be reduced, and the strength of the box and the heat insulation can be reduced. Since both the performance can be improved, a heat insulating box, a refrigerator, and a device having a large volume in a room (for example, a storage room), high strength, and good heat insulating performance can be obtained. Moreover, since the bending elastic modulus of the rigid urethane foam can be increased, the strength can be improved even if the thickness of the rigid urethane foam is reduced. Therefore, the box strength can be improved even if the wall thickness is reduced. Moreover, since the composite heat conductivity of the wall formed from the composite member provided with the vacuum heat insulating material 400 and the rigid urethane foam can be reduced, the heat insulation performance can be improved even if the wall thickness is reduced.
Also, the heat insulating material is a rigid urethane foam, the bending elastic modulus of the hard urethane foam is 15 MPa or more and 150 MPa or less, and the bending elastic modulus of the vacuum heat insulating material 400 is 20 MPa or more, whereby the bending of the rigid urethane foam that is an interposed member is performed. Since the elastic modulus can be increased, the strength can be improved even if the thickness of the rigid urethane foam is reduced. Moreover, since the rigidity of a vacuum heat insulating material improves, box strength improves.
Further, the vacuum heat insulating material is disposed at least in the side wall 790 and the back wall 730, and the ratio of the arrangement area of the vacuum heat insulating material 400 to the outer surface area of the back wall 730 and the side wall 790 is set to 70% or more. A heat insulation box, a refrigerator, and a device with small deformation, high strength, high rigidity, and good heat insulation performance can be obtained.
Further, the ratio of the volume occupied by the vacuum heat insulating material to the volume of the space between the outer box and the inner box forming the box is 40% or more, so that the amount of deformation of the box is small and the strength is high. A heat-insulated box, refrigerator, and equipment having high rigidity and good heat insulation performance can be obtained.
The vacuum heat insulating material has a substantially rectangular plate shape, and the notch 33 has four corners (4) that are substantially rectangular so as not to interfere with the injection ports 703 and 704 at portions facing the injection ports 703 and 704. At the corners where the inlets 703 and 704 are provided, the inside of the side ceiling wall or when filling with a filler such as urethane from the filler ports (injectors) 703 and 704 A filler such as urethane flows smoothly in the bottom wall or the partition wall. When the inlets 703 and 704 are provided at the four corners of the back wall excluding the machine room 1A, the notches 33 of the vacuum heat insulating material 400 are also provided at the four corners (substantially rectangular shapes) facing the inlets 703 and 704. It may be provided at four corners of the vacuum heat insulating material 400.

（側壁にレール部材）
ここで、側壁７９０に棚８０あるいは引き出し式の貯蔵室（たとえば引き出し式の扉あるいは引き出しケース等）を支えるためのレール部（たとえばレールあるいはレール取り付け部）７５５が形成される場合について説明する。 (Rail member on the side wall)
Here, a case where a rail portion (for example, a rail or a rail attachment portion) 755 for supporting the shelf 80 or a drawer-type storage chamber (for example, a drawer-type door or a drawer case) is formed on the side wall 790 will be described.

図２４は、本発明の実施の形態を表す冷蔵庫のレール取り付け部近傍の要部断面図である。図２５は、本発明の実施の形態を表す別の冷蔵庫のレール取り付け部近傍の要部断面図である。図２６は、本発明の実施の形態を表す別の冷蔵庫のレール取り付け部近傍の要部断面図である。図２７は、本発明の実施の形態を表す別の冷蔵庫のレール取り付け部近傍の要部断面図である。図２４〜図２７において、図１〜図１４と同等部分には同一の符号を付して説明は省略する。また、図２４〜図２７においては、同等部分は同一の符号を付しているので、１つの図で説明し他の図での説明は省略する。   FIG. 24 is a cross-sectional view of the main part in the vicinity of the rail attachment part of the refrigerator representing the embodiment of the present invention. FIG. 25 is a cross-sectional view of the main part in the vicinity of the rail attachment part of another refrigerator representing the embodiment of the present invention. FIG. 26 is a cross-sectional view of a main part in the vicinity of a rail attachment part of another refrigerator representing the embodiment of the present invention. FIG. 27 is a cross-sectional view of an essential part in the vicinity of a rail attachment part of another refrigerator representing the embodiment of the present invention. 24 to 27, the same parts as those in FIGS. 1 to 14 are denoted by the same reference numerals, and the description thereof is omitted. Further, in FIGS. 24 to 27, the equivalent parts are denoted by the same reference numerals, and therefore will be described in one figure and will not be described in other figures.

図２４において、側壁７９０の壁厚さは局所的な突起や凹みを除いた平均的な厚さが２０ｍｍ以上４０ｍｍ以下であって、たとえば冷蔵室２や野菜室５や冷凍室６などの貯蔵室に、貯蔵室の中に設置される棚８０あるいは引き出し式の貯蔵室（たとえば引き出し式の扉あるいは引き出しケース等）を支えるためのレール部（たとえばレール部材取り付け部あるいはレール保持部）７５５が内箱７５０に凹形状の内箱凹部７１７あるいは凸形状の内箱凸部等で形成され、レール部材８１０のレール支持部８２０がネジなどのレール固定部材７３５により内箱７５０あるいは補強部材７３１あるいはウレタン等の断熱材７０１に固定される。したがって、側壁７９０において、真空断熱材４００と内箱７５０との間に充填される第３の介在部材である硬質ウレタンフォームなどの断熱材７０１の厚さを所定厚さ（１１ｍｍ程度以下、好ましくは１０ｍｍより小さくより好ましくは６ｍｍ程度以下）以下に設定して壁厚さを薄くして貯蔵室内容積を大きくしようとすると、レール部材あるいは補強部材を固定あるいは保持するためのネジなどの固定部材が真空断熱材４００の外包材を傷つけたり破損したりする恐れがある。   In FIG. 24, the wall thickness of the side wall 790 is an average thickness of 20 mm or more and 40 mm or less excluding local protrusions and dents. For example, the storage room such as the refrigerator compartment 2, the vegetable compartment 5, and the freezer compartment 6 is used. Furthermore, a rail portion (for example, a rail member mounting portion or a rail holding portion) 755 for supporting a shelf 80 installed in the storage chamber or a drawer-type storage chamber (for example, a drawer-type door or a drawer case) is an inner box. 750 is formed with a concave inner box concave portion 717 or a convex inner box convex portion or the like, and the rail support portion 820 of the rail member 810 is made of an inner box 750, a reinforcing member 731, urethane or the like by a rail fixing member 735 such as a screw. It is fixed to the heat insulating material 701. Therefore, in the side wall 790, the thickness of the heat insulating material 701 such as hard urethane foam which is the third interposed member filled between the vacuum heat insulating material 400 and the inner box 750 is set to a predetermined thickness (about 11 mm or less, preferably If the wall thickness is set to be smaller by setting it to be smaller than 10 mm, more preferably about 6 mm or less, and the volume in the storage chamber is increased, the fixing member such as a screw for fixing or holding the rail member or the reinforcing member is vacuumed. There is a possibility that the outer packaging material of the heat insulating material 400 may be damaged or damaged.

ここで、真空断熱材４００を傷つけないようにネジなどの固定部材７３５の長さを短くするとレール部材８１０を固定あるいは保持するため固定強度あるいは保持強度が弱くなり、レール部材８１０にケース５２０や棚８０などを設置した場合に貯蔵品が収納あるいは載置された場合に貯蔵品やケース５２０や棚８０などの重みにより固定部材７３５が内箱７５０からはずれる恐れがある。また、２段レール構成の引出式ケースの場合などケース５２０を引き出した時の引き出し量が大きくなる場合には、レール部材８１０にケース５２０などを設置した場合に貯蔵品やケース５２０などの重みによりレール部材８１０あるいは補強部材７３１と対向する位置の内箱７５０の取付部分でレール部７５５が変形して引き出し式ケース５２０がスムーズに引き出せない状況になる恐れがある。ここで、ウレタン等の断熱材７０１内に挿入されて固定されるネジなどの固定部材７３５の長さ（ネジ部の長さ）は強度確保上１０ｍｍ程度よりも短くすることが困難であり、通常は１５ｍｍ程度以上確保しており、真空断熱材４００と内箱７５０との間の第３の介在部材である硬質ウレタンフォーム７０１の厚さを１５ｍｍ程度以下（好ましくは１１ｍｍ以下（たとえば１０ｍｍより小さい方が良い））にすることは困難であった。特に従来使用のウレタンは、断熱性能確保のため、密度が６０ｋｇ／ｍ3以下と小さい範囲で使用しているため、ウレタン内に空隙が多く、ネジなどの固定部材を保持する強度が小さいため、ネジ等の固定部材の長さが長く必要となっていた。   Here, if the length of the fixing member 735 such as a screw is shortened so as not to damage the vacuum heat insulating material 400, the fixing or holding strength is weakened because the rail member 810 is fixed or held, and the case 520 or the shelf is attached to the rail member 810. When a stored item is stored or placed when 80 or the like is installed, the fixing member 735 may be detached from the inner box 750 due to the weight of the stored item, the case 520, the shelf 80, or the like. Also, when the amount of drawer when the case 520 is pulled out becomes large, such as in the case of a drawer type case with a two-stage rail configuration, when the case 520 is installed on the rail member 810, the weight of the stored item or the case 520 There is a possibility that the rail portion 755 is deformed at the mounting portion of the inner box 750 at a position facing the rail member 810 or the reinforcing member 731 and the pull-out case 520 cannot be pulled out smoothly. Here, it is difficult to make the length of the fixing member 735 such as a screw inserted into the heat insulating material 701 such as urethane (the length of the screw portion) shorter than about 10 mm in terms of securing the strength. Has a thickness of about 15 mm or less, and the thickness of the rigid urethane foam 701 as the third interposed member between the vacuum heat insulating material 400 and the inner box 750 is about 15 mm or less (preferably 11 mm or less (for example, smaller than 10 mm) But good)) was difficult. In particular, conventional urethane is used in a range where the density is as small as 60 kg / m3 or less in order to ensure heat insulation performance, so there are many voids in the urethane and the strength to hold fixing members such as screws is small. The length of the fixing member such as a long one is necessary.

本発明の実施の形態では、断熱箱体７００あるいは冷蔵庫１の側壁７９０において、室内（貯蔵室など）に設置される棚８０あるいは引き出し式のケース（たとえば引き出し式の貯蔵室あるいは貯蔵室の扉あるいは引き出しケース等）５２０を支えるためのレール部（たとえばレール取り付け部あるいはレール保持部）７５５が内箱７５０に形成されているが、この内箱７５０のレール部７５５と対向する部位の内箱７５０と外箱７１０との間に真空断熱材４００が配設されている。ここで、内箱７５０のレール部７５５と対向する部位の内箱７５０と外箱７１０との間に真空断熱材４００が配設される場合には、ネジなどの固定部材７３５を側壁７９０ではなく室を形成する下面の仕切壁２４あるいは室を形成する上面の仕切壁（上面壁）２４あるいは天井壁７４０、あるいは底面壁７８０に設けるようにすれば良い。この場合には、固定部材は、側壁７９０の近傍の底面壁７８０あるいは下面の仕切壁２４あるいは上面の仕切壁２４あるいは天井壁７４０に設けられることになるため、底面壁７８０あるいは下面の仕切壁２４あるいは天井壁７４０あるいは上面の仕切壁２４にも真空断熱材を配設する場合には、固定部材７３５を設ける部位を避けるか切り欠くなどして真空断熱材４００を配設するようにすれば良い。このようにすることで、側壁７９０に真空断熱材４００を配設することができるとともに、壁厚さを薄くすることができる。   In the embodiment of the present invention, in the heat insulating box 700 or the side wall 790 of the refrigerator 1, a shelf 80 installed in a room (such as a storage room) or a drawer-type case (for example, a drawer-type storage room or a door of a storage room) A rail portion (for example, a rail attachment portion or a rail holding portion) 755 for supporting the drawer case 520 is formed in the inner box 750. The inner box 750 in a portion facing the rail portion 755 of the inner box 750 A vacuum heat insulating material 400 is disposed between the outer box 710 and the outer box 710. Here, in the case where the vacuum heat insulating material 400 is disposed between the inner box 750 and the outer box 710 at a portion facing the rail portion 755 of the inner box 750, the fixing member 735 such as a screw is not the side wall 790. The lower partition wall 24 forming the chamber, the upper partition wall (upper wall) 24 forming the chamber, the ceiling wall 740, or the bottom wall 780 may be provided. In this case, the fixing member is provided on the bottom wall 780 near the side wall 790, the lower partition wall 24, the upper partition wall 24, or the ceiling wall 740. Therefore, the bottom wall 780 or the lower partition wall 24 is provided. Alternatively, when the vacuum heat insulating material is disposed also on the ceiling wall 740 or the upper partition wall 24, the vacuum heat insulating material 400 may be disposed so as to avoid or cut out a portion where the fixing member 735 is provided. . By doing in this way, while being able to arrange | position the vacuum heat insulating material 400 to the side wall 790, wall thickness can be made thin.

また、本発明の実施の形態では、第３の介在部材として使用されるウレタン等の断熱材７０１内に挿入されるネジなどの固定部材７３５の長さ（ネジ部の長さ）を１０ｍｍ程度より小さくしても、第３の介在部材であるウレタンの密度が６０ｋｇ／ｍ３より大きな範囲で使用するようにすれば、ウレタン内の空隙が密度６０ｋｇ／ｍ３よりも小さい場合に比べて少なくなり、ネジなどの固定部材７３５を保持するウレタンの強度が大きくなるので、固定部材７３５の保持強度が向上する。この場合、樹脂製あるいは金属製の板状補強部材（ネジ固定部）７３１を真空断熱材４００と内箱７５０の間に形成して固定部材７３５をネジ固定部７３１に挿入するなどして固定しても良い。補強部材７３１の厚さはネジなどの固定部材７３５を保持あるいは固定できる厚さであればよく、２ｍｍ以上１０ｍｍ以下程度に設定されている。この場合でも、第３の介在部材であるウレタンの密度を６０ｋｇ／ｍ３より大きくすれば、補強部材（ネジ固定部）７３１のウレタン等の断熱材７０１内での保持強度を大きくできるので、内箱７５０のレール部７５５や固定部材７３５の変形などが抑制され、また、補強部材７３１のウレタン等の断熱材７０１内での位置ズレなども抑制できる。特に２段階で引き出される２段レール構造の場合には、固定部材の固定あるいは保持強度が大きく必要になるが、ウレタンの密度を６０ｋｇ／ｍ３より大きくすれば、問題なく使用できる。また、ウレタンなどの断熱材７０１の厚さが１１ｍｍ以下（たとえば１０ｍｍよりも小さく）好ましくは６ｍｍ以下にして、ネジなどの固定部材７３５のネジ部長さを１０ｍｍ以下にしてもネジ７３５を固定する部分（レール部７５５）の内箱７５０の厚さ（たとえば１〜２ｍｍ）分、あるいは補強部材７３１の厚さ（たとえば１ｍｍ〜８ｍｍ程度）分だけネジ部のウレタン等の断熱材７０１への突出長さが短くなるので、真空断熱材４００をネジ７３５が傷つけたり破袋したりすることはない。 In the embodiment of the present invention, the length of the fixing member 735 such as a screw inserted into the heat insulating material 701 such as urethane used as the third interposed member (the length of the screw portion) is about 10 mm or more. Even if it is made small, if the density of the urethane as the third interposed member is used in a range larger than 60 kg / m 3 , the voids in the urethane will be smaller than when the density is smaller than 60 kg / m 3. Since the strength of urethane holding the fixing member 735 such as a screw is increased, the holding strength of the fixing member 735 is improved. In this case, a plate-like reinforcing member (screw fixing portion) 731 made of resin or metal is formed between the vacuum heat insulating material 400 and the inner box 750 and fixed by inserting the fixing member 735 into the screw fixing portion 731. May be. The thickness of the reinforcing member 731 may be any thickness that can hold or fix the fixing member 735 such as a screw, and is set to about 2 mm or more and 10 mm or less. Even in this case, if the density of urethane as the third interposed member is made larger than 60 kg / m 3 , the holding strength of the reinforcing member (screw fixing portion) 731 in the heat insulating material 701 such as urethane can be increased. Deformation of the rail portion 755 and the fixing member 735 of the box 750 is suppressed, and displacement of the reinforcing member 731 within the heat insulating material 701 such as urethane can be suppressed. Particularly in the case of two-stage rail structure drawn in two stages is fixed or holding strength of the fixing member is needed increases, the density of urethane if greater than 60 kg / m 3, can be used without problems. Further, the portion for fixing the screw 735 even if the thickness of the heat insulating material 701 such as urethane is 11 mm or less (for example, smaller than 10 mm), preferably 6 mm or less, and the screw portion of the fixing member 735 such as a screw is 10 mm or less. Projection length of the screw portion to the heat insulating material 701 such as urethane by the thickness of the inner box 750 (for example, 1 to 2 mm) of the (rail portion 755) or the thickness of the reinforcing member 731 (for example, about 1 mm to 8 mm). Therefore, the screw 735 does not damage or break the vacuum heat insulating material 400.

すなわち、内箱７５０と外箱７１０の間に真空断熱材４００が設けられ、引き出し式貯蔵室用のレール部材８１０が設けられる側壁７９０において、側壁７９０の厚さが４０ｍｍ以下、レール部材８１０が取り付けられるレール部（レール取り付け部）７５５と対向する部位の発泡断熱材（たとえば硬質ウレタンフォーム）７０１の厚さが１１ｍｍ以下（ばらつきや真空断熱材の表面の凹凸などを考慮すると１０ｍｍ未満が良い）であって、発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）が０．３以下であって、硬質ウレタンフォームの密度を６０ｋｇ／ｍ３より大きくすることで、ネジなどの固定部材７３５の外れが抑制され、あるいはネジなどの固定部材７３５の保持強度あるいは固定強度が増加し、レール部７５５が変形したりしないのでケース５２０などの出し入れがスムーズに行える。また、ネジなどの固定部材７３５を取り付けるレール部（レール取り付け部）７５５あるいは内箱７５０が破損することもなくなり、信頼性が向上する。 That is, in the side wall 790 where the vacuum heat insulating material 400 is provided between the inner box 750 and the outer box 710 and the rail member 810 for the pull-out storage chamber is provided, the thickness of the side wall 790 is 40 mm or less, and the rail member 810 is attached. The thickness of the foamed heat insulating material (for example, hard urethane foam) 701 at the portion facing the rail portion (rail mounting portion) 755 to be formed is 11 mm or less (less than 10 mm is preferable in consideration of variations and surface irregularities of the vacuum heat insulating material). The thickness of the foam heat insulating material / (thickness of the foam heat insulating material + the thickness of the vacuum heat insulating material) is 0.3 or less, and the density of the rigid urethane foam is set to be larger than 60 kg / m 3 , The disengagement of the fixing member 735 such as a screw is suppressed, or the holding strength or fixing strength of the fixing member 735 such as a screw is increased, and the rail portion 755 is changed. Since it is not shaped, the case 520 and the like can be taken in and out smoothly. Further, the rail portion (rail mounting portion) 755 or the inner box 750 to which the fixing member 735 such as a screw is attached is not damaged, and the reliability is improved.

レール部材８１０は、貯蔵室２、３、４、５、６の開閉扉７、８、９、１０、１１に固定あるいは保持され、開閉扉の開とともに引き出される移動レールである上レール８１１、貯蔵室の側壁７９０に固定された固定レールである下レール８１２、上レール８１１と下レール８１２の間に設けられた中間レール８１３、下レール８１２にネジあるいは溶接などのレール支持部固定部材８３６で固定されたレール支持部８２０、上レール８１１にネジあるいは溶接などのケース支持部固定部材８３５で固定されたケース支持部８３０、中間レール８１３と上レール８１１及び下レール８１２との係合を支持する回転支持部材である複数のベアリング８１５、とから構成されている。レール支持部８２０は、貯蔵室２、３、４、５、６の側壁７９０を形成する内箱７５０のレール部７５５にネジなどのレール固定部材７３５にて固定されている。また、ケース支持部８３０は、貯蔵室２、３、４、５、６に設けられているケース５２０を支持しており、移動レールである上レール８１１の前後方向の移動に伴ってケース５２０が前後方向に移動する（上レール８１１の移動に伴ってケース５２０が前後方向に移動することでケース５２０が前後方向に出し入れされる）。また、中間レール８１３は、上レール８１１の前後方向への移動に伴って前後方向に移動する。したがって、各貯蔵室２、３、４、５、６のケース５２０は、各貯蔵室扉７、８、９、１０、１１を冷蔵庫１に対して前後方向に引き出すのと同期して上レール８１１と共に前後に移動し、各貯蔵室扉が全開した時にはケース５２０は上方向に着脱自在になっている。   The rail member 810 is fixed or held to the open / close doors 7, 8, 9, 10, 11 of the storage chambers 2, 3, 4, 5, 6 and is stored in an upper rail 811 that is a moving rail that is pulled out when the open / close door is opened. The lower rail 812, which is a fixed rail fixed to the side wall 790 of the chamber, the intermediate rail 813 provided between the upper rail 811 and the lower rail 812, and the lower rail 812 are fixed with a rail support fixing member 836 such as a screw or welding. Rotation that supports the engagement of the case support 830, the intermediate rail 813, the upper rail 811, and the lower rail 812, which are fixed to the rail support 820 and the upper rail 811 by a case support fixing member 835 such as screws or welding. It comprises a plurality of bearings 815 that are support members. The rail support portion 820 is fixed to a rail portion 755 of the inner box 750 that forms the side wall 790 of the storage chambers 2, 3, 4, 5, 6 with a rail fixing member 735 such as a screw. Moreover, the case support part 830 supports the case 520 provided in the storage chambers 2, 3, 4, 5, and 6, and the case 520 moves along with the movement of the upper rail 811 that is a moving rail in the front-rear direction. It moves in the front-rear direction (the case 520 moves in the front-rear direction as the case 520 moves in the front-rear direction as the upper rail 811 moves). Further, the intermediate rail 813 moves in the front-rear direction as the upper rail 811 moves in the front-rear direction. Therefore, the case 520 of each of the storage chambers 2, 3, 4, 5, 6 has an upper rail 811 in synchronization with pulling out the storage chamber doors 7, 8, 9, 10, 11 with respect to the refrigerator 1 in the front-rear direction. At the same time, the case 520 is detachable upward when each storage chamber door is fully opened.

ここで、下レール８１２とレール支持部８２０を一体に形成しても良い。すなわち、下レール８１２とレール支持部８２０を予め溶接などで一体に固定しておいても良い。この場合には、レール支持部固定部材８３６であるネジが不要になり、組立性が改善される。また、下レール８１２の一部をレール支持部８２０として使用しても良く、この場合には、溶接やネジなどが不要になるので、低コストで組立性が良好なレール部材、冷蔵庫が得られる。   Here, the lower rail 812 and the rail support portion 820 may be integrally formed. That is, the lower rail 812 and the rail support portion 820 may be integrally fixed in advance by welding or the like. In this case, the screw which is the rail support part fixing member 836 becomes unnecessary, and the assemblability is improved. In addition, a part of the lower rail 812 may be used as the rail support portion 820. In this case, welding, screws, and the like are not necessary, so that a rail member and a refrigerator with good assembly property can be obtained at low cost. .

レール部材８１０のレール支持部８２０は、各貯蔵室の側壁７９０を構成する内箱７５０のレール部７５５にレール固定部材７３５によって固定あるいは保持されている。ここで、レール部材８１０はある程度の大きさを有するため、レール部７５５の貯蔵室側に取り付けられた状態では貯蔵室側に出っ張る（突出する）ため、貯蔵室内への出っ張り量（突出量）を小さくするため、レール部７５５は、貯蔵室側からみて外箱７１０方向に凹ませた方が良い。よって、内箱７５０のレール部７５５は外箱７１０方向に凹んだ形状をしており、内箱凹部７１７が形成されている。このようにレール部７５５を外箱７１０側へ凹ませた内箱凹部７１７に貯蔵室側からレール部材８１０を取り付けることにより、貯蔵室内の容積及びケース５２０の容積を大きくできる。   The rail support portion 820 of the rail member 810 is fixed or held by the rail fixing member 735 to the rail portion 755 of the inner box 750 constituting the side wall 790 of each storage chamber. Here, since the rail member 810 has a certain size, when the rail member 810 is attached to the storage chamber side of the rail portion 755, the rail member 810 projects (projects) to the storage chamber side. In order to reduce the size, the rail portion 755 is preferably recessed in the direction of the outer box 710 when viewed from the storage chamber side. Therefore, the rail portion 755 of the inner box 750 has a shape recessed in the direction of the outer box 710, and an inner box recess 717 is formed. Thus, by attaching the rail member 810 from the storage chamber side to the inner box recess 717 in which the rail portion 755 is recessed to the outer box 710 side, the volume in the storage chamber and the volume of the case 520 can be increased.

内箱７５０のレール部７５５の外箱７１０側（貯蔵室側とは反対側）には、真空断熱材４００との間に補強部材７３１が設けられており、補強部材７３１と真空断熱材４００との間には第３の介在部材としてウレタン等の断熱材７０１が充填されており、補強部材７３１は、ウレタン等の断熱材７０１によりレール部７５５に略密着するように固定または保持されている。内箱７５０のレール部７５５と外箱７１０の間は、内箱７５０側からレール部７５５、補強部材７３１、ウレタン等の断熱材７０１、真空断熱材４００、外箱７１０の順に設けられている。ここで、本実施の形態では、内箱７５０と真空断熱材４００との間にウレタンなどの断熱材７０１を充填するようにしているが、断熱性能及び箱体強度は真空断熱材４００でまかなわれるため、断熱材７０１の代わりに第３の介在部材として接着剤を使用しても良く、この場合は接着剤として自己接着性を有する発泡断熱材である硬質ウレタンフォームを使用しても良い。なお、外箱７１０と真空断熱材４００とは、ホットメルトや両面テープなどの第２の介在部材である第２の接着剤で固定されている。   A reinforcing member 731 is provided between the rail portion 755 of the inner box 750 and the vacuum heat insulating material 400 on the outer box 710 side (the side opposite to the storage chamber side). Between them, a heat insulating material 701 such as urethane is filled as a third interposed member, and the reinforcing member 731 is fixed or held so as to be in close contact with the rail portion 755 by a heat insulating material 701 such as urethane. Between the rail part 755 and the outer box 710 of the inner box 750, the rail part 755, the reinforcing member 731, the heat insulating material 701 such as urethane, the vacuum heat insulating material 400, and the outer box 710 are provided in this order from the inner box 750 side. Here, in this embodiment, a heat insulating material 701 such as urethane is filled between the inner box 750 and the vacuum heat insulating material 400, but the heat insulating performance and the box strength are covered by the vacuum heat insulating material 400. Therefore, an adhesive may be used as the third interposed member instead of the heat insulating material 701. In this case, a hard urethane foam that is a foam heat insulating material having self-adhesiveness may be used as the adhesive. The outer box 710 and the vacuum heat insulating material 400 are fixed with a second adhesive which is a second interposed member such as hot melt or double-sided tape.

ここで、真空断熱材４００と内箱７５０の間に充填されるウレタンなどの断熱材７０１の厚さＱは、１５ｍｍ程度以上（好ましくは１３ｍｍ以上）に設定すれば良いが１１ｍｍ以下にした方が良い。また、真空断熱材４００と内箱７５０のレール部７５５との間に充填されるウレタンなどの断熱材７０１の厚さＰは、１１ｍｍ以下（ばらつきや真空断熱材表面の凹凸など考慮して１０ｍｍよりも小さい方が良い）に設定されているので、ウレタンなどの断熱材７０１の曲げ弾性率を大きくでき箱体７００あるいは冷蔵庫１の強度向上が図れる。また、補強部材７３１と真空断熱材４００との間に充填されるウレタンなどの断熱材７０１の厚さＲは、所定厚さＰよりも補強部材の厚さ分だけ小さく、たとえば補強部材の厚さが２ｍｍとすれば８ｍｍ以下、補強部材の厚さを４ｍｍとすれば６ｍｍ程度以下に設定されているので、更なる強度向上が図れる。また、ウレタンなどの断熱材７０１の密度は、６０ｋｇ／ｍ３よりも大きく設定されているため、ネジなどの固定部材７３５の保持強度あるいは固定強度が向上し、ネジの緩みや外れや抜けが抑制される。また、補強部材７３１の保持強度あるいは固定強度が向上し、補強部材７３１の位置ズレの発生や、位置ズレによるネジの変形や内箱７５０のレール部７５５の変形が抑制でき、信頼性の高い冷蔵庫や機器が得られる。ただし、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加による箱体等からのウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能低下、コストＵＰなどの問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度を１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 Here, the thickness Q of the heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400 and the inner box 750 may be set to about 15 mm or more (preferably 13 mm or more). good. Further, the thickness P of the heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400 and the rail portion 755 of the inner box 750 is 11 mm or less (from 10 mm in consideration of variations and unevenness of the surface of the vacuum heat insulating material). Therefore, the bending elastic modulus of the heat insulating material 701 such as urethane can be increased, and the strength of the box 700 or the refrigerator 1 can be improved. Further, the thickness R of the heat insulating material 701 such as urethane filled between the reinforcing member 731 and the vacuum heat insulating material 400 is smaller than the predetermined thickness P by the thickness of the reinforcing member, for example, the thickness of the reinforcing member. If the thickness is set to 2 mm, the strength is set to 8 mm or less, and if the thickness of the reinforcing member is set to 4 mm, the strength is set to about 6 mm or less. In addition, since the density of the heat insulating material 701 such as urethane is set to be larger than 60 kg / m 3 , the holding strength or fixing strength of the fixing member 735 such as a screw is improved, and the loosening, detachment or removal of the screw is suppressed. Is done. Further, the holding strength or the fixing strength of the reinforcing member 731 is improved, and the occurrence of positional displacement of the reinforcing member 731, deformation of screws due to positional displacement, and deformation of the rail portion 755 of the inner box 750 can be suppressed, and a highly reliable refrigerator And equipment. However, if the density of heat insulating material such as urethane (for example, hard urethane foam) is too large, (1) the cost increases due to an increase in the injection amount of urethane, and (2) the box due to an increase in the injection pressure of urethane. Occurrence of urethane leaks, and (3) molds for suppressing box deformation due to increased foam pressure when foaming urethane, and adhesion and adhesion between the box pressing member and the urethane and the box pressing member, etc. Problems such as deterioration of quality, performance deterioration, and cost increase occur, such as the box holding member is difficult to remove from the box (it is difficult to remove from the box), and (4) the heat insulation performance is abruptly deteriorated due to the increased density of urethane. since was heat insulating material such as urethane is interposed member (for example, hard urethane foam) density 100 kg / m 3 or less (preferably 90 kg / m 3 or less) It is good.

図２５において、補強部材７３１は、金属性あるいは樹脂製であり、固定部材７３５が固定される板状の補強部材本体部７３４、補強部材本体部７３４の上端あるいは上部に設けられて略水平方向に延出した板状の補強部材延出部上７３２、補強部材本体部７３４の下端あるいは下部に設けられて略水平方向に延出した板状の補強部材延出部下７３３とから構成され、補強部材本体部７３４、補強部材延出部上７３２、補強部材延出部下７３３が一体に形成（一体に組立てられている）あるいは一体成形されている。   In FIG. 25, the reinforcing member 731 is made of metal or resin, and is provided in a plate-like reinforcing member main body portion 734 to which the fixing member 735 is fixed, on the upper end or the upper portion of the reinforcing member main body portion 734, and in a substantially horizontal direction. A plate-shaped reinforcing member extending portion upper 732 extending, and a plate-shaped reinforcing member extending portion lower portion 733 provided in the lower end or lower portion of the reinforcing member main body portion 734 and extending substantially in the horizontal direction, The main body portion 734, the reinforcing member extension portion upper portion 732, and the reinforcing member extension portion lower portion 733 are integrally formed (assembled integrally) or integrally formed.

補強部材７３１は、内箱７５０のレール部７５５に形成されている内箱凹部７１７の外箱７１０側に両面テープやホットメルトなどの第２の接着剤で接着されたあと、ウレタンなどの断熱材７０１が充填されることで内箱７５０のレール部７５５に固定あるいは保持される。補強部材７３１は、補強部材延出部上７３２と補強部材延出部下７３３が補強部材本体部７３４の端面から同方向に延出した断面Ｕ字状をしており、補強部材本体部７３４が内箱凹部７１７の底面部（凹み部）に設けられ、補強部材延出部上７３２が内箱凹部７１７を形成する凹部段部上７１８と対向するように載置される位置関係で補強部材７３１が内箱凹部７１７の外箱７１０側に設けられる。また、補強部材延出部下７３３は内箱凹部７１７を形成する凹部段部下７１９と対向するように設けられる。よって、補強部材７３１は、補強部材延出部上７３２あるいは補強部材延出部７３３下が内箱７５０に対して位置決めを容易に行うことができる。また、補強部材７３１を内箱凹部７１７に外箱７１０側から覆うように取り付けることが可能になるので、補強部材７３１の内箱７５０への位置決めあるいは取り付けが容易となり、また、内箱凹部７１７の強度も向上する。ここで、補強部材７３１は、補強部材延出部上７３２あるいは補強部材延出部下７３３のどちらか一方が形成あるいは成形されていれば補強部材延出部上７３２あるいは補強部材延出部下７３３と凹部段部上７１８あるいは凹部段部下７１９とによって位置決め可能なので、どちらか一方を省略しても良い（どちらか一方を設ければ良い）。   The reinforcing member 731 is bonded to the outer box 710 side of the inner box recess 717 formed in the rail portion 755 of the inner box 750 with a second adhesive such as double-sided tape or hot melt, and then a heat insulating material such as urethane. By being filled with 701, the rail portion 755 of the inner box 750 is fixed or held. The reinforcing member 731 has a U-shaped cross section in which a reinforcing member extending portion upper 732 and a reinforcing member extending portion lower 733 extend in the same direction from the end surface of the reinforcing member main body portion 734, and the reinforcing member main body portion 734 has an inner portion. The reinforcing member 731 is provided in the bottom surface portion (recessed portion) of the box concave portion 717, and is placed so that the reinforcing member extending portion upper portion 732 faces the concave stepped portion upper portion 718 forming the inner box concave portion 717. Provided on the outer box 710 side of the inner box recess 717. Further, the lower reinforcing member extending portion 733 is provided so as to face the lower recessed portion step 719 forming the inner box recessed portion 717. Therefore, the reinforcing member 731 can be easily positioned with respect to the inner box 750 on the reinforcing member extending portion 732 or the reinforcing member extending portion 733. Further, since the reinforcing member 731 can be attached to the inner box recess 717 so as to cover the outer box 710 from the outer box 710 side, positioning or attachment of the reinforcing member 731 to the inner box 750 is facilitated. Strength is also improved. Here, if either one of the reinforcing member extending portion 732 or the reinforcing member extending portion lower 733 is formed or molded, the reinforcing member 731 is recessed with the reinforcing member extending portion 732 or the reinforcing member extending portion lower 733. Since positioning is possible by the upper step portion 718 or the lower step portion 719 of the concave portion, either one may be omitted (one may be provided).

また、図２５では、レール支持部８２０はレール部材８１０の固定レールである下レール８１２に溶接により一体に形成されているので、レール部材８１０の内箱７５０のレール部７５５への組み付けが容易である。また、レール部材８１０がレール支持部８２０あるいは固定レールである下レール８１２を介して内箱凹部７１７のレール部材載置部である凹部段部下７１９に載置されており、レール部材８１０が下方へ移動しないように位置決めされ、また、凹部段部下７１９の上面側には、レール支持部８２０をネジなどで固定あるいは保持する固定部が設けられており、レール支持部８２０あるいはレール部材８１０の上方あるいは横方向への移動が抑制されるように固定部（移動抑制部）に固定あるいは保持されている。   In FIG. 25, the rail support portion 820 is integrally formed by welding to the lower rail 812 which is a fixed rail of the rail member 810, so that the rail member 810 can be easily assembled to the rail portion 755 of the inner box 750. is there. Also, the rail member 810 is placed on the lower recess step 719 that is the rail member placement portion of the inner box recess 717 via the rail support portion 820 or the lower rail 812 that is a fixed rail, and the rail member 810 moves downward. It is positioned so as not to move, and a fixing portion for fixing or holding the rail support portion 820 with a screw or the like is provided on the upper surface side of the recess step portion 719, above the rail support portion 820 or the rail member 810 or It is fixed or held by a fixed part (movement suppression part) so that movement in the lateral direction is suppressed.

レール部材８１０が、レール部材載置部である凹部段部下７１９に載置されているため、レール部材８１０を支持するレール支持部８２０がケース５２０の重みで下方に変形することが抑制されるので、扉あるいはケース５２０の出し入れがスムーズに行える。ここで、ケース５２０は、ケース底面壁、４つのケース側壁から構成され、上面が開口した容器であり、製造上抜き勾配が設けられるため、ケース５２０を形成するケース側壁は、上方から下方に向かってケース５２０の中心軸方向へ傾斜している。すなわち、ケース５２０の幅は、上端よりも下端の方が狭くなるように形成されている。   Since the rail member 810 is placed on the recess step portion 719 that is a rail member placement portion, the rail support portion 820 that supports the rail member 810 is suppressed from being deformed downward by the weight of the case 520. The door or case 520 can be smoothly inserted and removed. Here, the case 520 is composed of a case bottom wall and four case side walls, and is a container having an open top surface. Since a draft angle is provided for manufacturing, the case side walls forming the case 520 are directed from the top to the bottom. The case 520 is inclined in the direction of the central axis. That is, the width of the case 520 is formed so that the lower end is narrower than the upper end.

したがって、ケース５２０と側壁７９０との間のすきま（長さ）は、ケース５２０の上端よりも下端の方が大きい。よって、ケース５２０をレール部材８１０で支持する場合には、レール部材８１０は、ケース５２０の高さ方向の下方で支持するほうがケース５２０の容積を大きくできるので良い。ケース５２０の高さの１／２以下好ましくは１／３以下の位置でケース５２０をレール部材８１０（たとえばケース支持部８３０）で支持したほうがケースの幅を大きくできるので、ケース５２０の容積を大きくできる。この場合、ケース５２０のケース側壁にケース段差部５２５を設け、レール部材８１０のケース支持部８３０がケース段差部５２５を支持するようにしても良い。このようにすることで、容易にケース５２０を支持できる。また、ケース５２０の高さ方向の下端近傍（たとえばケース５２０の高さの１／２以下好ましくは１／３以下の位置）で支持しても良いが、最下端であるケース底面壁の裏面を支持すれば、ケース５２０にケース段差部５２５を設ける必要がなくなり、ケース５２０の製造が容易になる。   Therefore, the clearance (length) between the case 520 and the side wall 790 is larger at the lower end than at the upper end of the case 520. Therefore, when the case 520 is supported by the rail member 810, the rail member 810 may support the case 520 below the height direction of the case 520 because the volume of the case 520 can be increased. Since the width of the case can be increased if the case 520 is supported by the rail member 810 (for example, the case support portion 830) at a position of 1/2 or less, preferably 1/3 or less of the height of the case 520, the volume of the case 520 is increased. it can. In this case, the case step portion 525 may be provided on the case side wall of the case 520, and the case support portion 830 of the rail member 810 may support the case step portion 525. By doing in this way, case 520 can be supported easily. The case 520 may be supported in the vicinity of the lower end of the height direction of the case 520 (for example, a position of 1/2 or less, preferably 1/3 or less of the height of the case 520). If it supports, it will become unnecessary to provide the case level | step-difference part 525 in case 520, and manufacture of case 520 will become easy.

レール部材載置部である凹部段部下７１９が形成される内箱７５０と真空断熱材４００（あるいは外箱７１０）との間に充填されるウレタンなどの断熱材７０１（たとえば硬質ウレタンフォーム）の密度は６０ｋｇ／ｍ３より大きくした方が、レール部材載置部である凹部段部下７１９の強度が向上するので、ケース５２０に重量物を収納してもレール部材８１０を載置するレール部材載置部である凹部段部下７１９が変形したりしないので、安定してケース５２０の出し入れが可能となり、信頼性の高い冷蔵庫や機器が得られる。 Density of heat insulating material 701 (for example, hard urethane foam) such as urethane filled between the inner box 750 in which the recessed step 719 below the rail member mounting portion 719 is formed and the vacuum heat insulating material 400 (or the outer box 710). Is larger than 60 kg / m 3 , since the strength of the recessed step portion 719 that is the rail member mounting portion is improved, the rail member mounting for mounting the rail member 810 even if a heavy object is stored in the case 520 Since the lower part 719 of the concave step is not deformed, the case 520 can be taken in and out stably, and a highly reliable refrigerator and equipment can be obtained.

また、図２４、図２５においては、内箱凹部７１７は、レール部材８１０の少なくとも一部（たとえばレール支持部８２０など）あるいは全部を収納することが可能なので、レール部材８１０の貯蔵室側への突出量を小さくでき、したがって、貯蔵室内の容積を大きくでき、また、ケース５２０の容積も大きくできる。   In FIGS. 24 and 25, the inner box recess 717 can accommodate at least a part of the rail member 810 (for example, the rail support portion 820) or the entire rail member 810. The amount of protrusion can be reduced, and therefore the volume in the storage chamber can be increased, and the volume of the case 520 can be increased.

図２４、図２５では、内箱７５０を貯蔵室側からみて凹んだ内箱凹部７１７の外箱７１０側に補強部材７３１が設けられている例を説明したが、図２６は、内箱７５０を貯蔵室側からみて突出した内箱凸部７２７の外箱７１０側に補強部材７３１が設けられている例である。図において、側壁７９０を形成する内箱７５０は、レール部７５５が貯蔵室側に突出しており、内箱凸部７２７を形成している。内箱凸部７２７は、凸部段部上７２８、凸部段部下７２９を有しており、凸部段部上７２８、凸部段部下７２９により凸形状が形成されている。   24 and 25, the example in which the reinforcing member 731 is provided on the outer box 710 side of the inner box recess 717 that is recessed when the inner box 750 is viewed from the storage chamber side has been described. This is an example in which a reinforcing member 731 is provided on the outer box 710 side of the inner box convex portion 727 protruding from the storage chamber side. In the figure, an inner box 750 that forms a side wall 790 has a rail portion 755 that protrudes toward the storage chamber and forms an inner box convex portion 727. The inner box convex portion 727 has a convex stepped portion upper portion 728 and a convex portion stepped portion lower portion 729, and a convex shape is formed by the convex portion stepped portion upper portion 728 and the convex portion stepped portion lower portion 729.

図２６において、内箱凸部７２７は、外箱７１０側からみると凹んだ凹部形状をなしており、この内箱凸部７２７の外箱７１０側に形成される凹部に補強部材７３１が収納（少なくとも一部あるいは全部が収納）されており、凸部段部下にて補強部材７３１の上下方向あるいは横方向の位置決めが行われている。また、内箱凸部７２７の外箱７１０側に形成される凹部に補強部材７３１の少なくとも一部あるいは全部を収納することにより、補強部材７３１の外箱７１０側への突出量を小さくできるので、真空断熱材４００（あるいは外箱７１０）と内箱７５０との間にウレタン等の断熱材７０１を充填する場合に、ウレタンが流れる流路の幅（真空断熱材４００と補強部材７３１の間のウレタンなどの断熱材７０１の厚さ）Ｒが狭くなってウレタンが流れにくくなるのを抑制できる。したがって、ウレタンなどの断熱材７０１の流れが阻害されないので、補強部材７３１と真空断熱材４００との間にウレタンなどの断熱材７０１の厚さＲを１１ｍｍ以下（ばらつきや真空断熱材の表面の凹凸などを考慮すると１０ｍｍより小さい方が良い）に設定できるため、補強部材７３１と真空断熱材４００との間にウレタンなどの断熱材７０１の厚さＲを充分に確保できるので、補強部材７３１の保持強度の低下、あるいは、ネジなどのレール固定部材７３５の固定あるいは保持強度の低下を抑制できる。   26, the inner box convex portion 727 has a concave shape when viewed from the outer box 710 side, and the reinforcing member 731 is accommodated in the concave portion formed on the outer box 710 side of the inner box convex portion 727 ( At least a part or the whole is stored), and the reinforcing member 731 is positioned in the vertical direction or the horizontal direction under the convex step. Further, by storing at least a part or all of the reinforcing member 731 in the concave portion formed on the outer box 710 side of the inner box convex portion 727, the amount of protrusion of the reinforcing member 731 toward the outer box 710 can be reduced. When a heat insulating material 701 such as urethane is filled between the vacuum heat insulating material 400 (or the outer box 710) and the inner box 750, the width of the flow path through which urethane flows (the urethane between the vacuum heat insulating material 400 and the reinforcing member 731) The thickness of the heat insulating material 701 such as R) can be suppressed from becoming narrow and difficult to flow urethane. Accordingly, since the flow of the heat insulating material 701 such as urethane is not hindered, the thickness R of the heat insulating material 701 such as urethane is 11 mm or less between the reinforcing member 731 and the vacuum heat insulating material 400 (variation and unevenness of the surface of the vacuum heat insulating material). Therefore, the thickness R of the heat insulating material 701 such as urethane can be sufficiently secured between the reinforcing member 731 and the vacuum heat insulating material 400, so that the reinforcing member 731 can be held. It is possible to suppress a decrease in strength or a fixing of the rail fixing member 735 such as a screw or a decrease in holding strength.

また、レール支持部８２０はレール部材８１０の固定レールである下レール８１２に溶接などにより一体に形成されているので、レール部材８１０の内箱７５０のレール部７５５への組み付けが容易である。また、レール支持部８２０は、貯蔵室間に設けられる仕切壁２４、あるいは、底面部７８０に載置されており、レール部材８１０が下方へ移動しないように位置決めされており、また、仕切壁２４あるいは底面部７８０には、レール支持部８２０をネジなどで固定あるいは保持する固定部が設けられており、レール支持部８２０あるいはレール部材８１０の上方あるいは横方向への移動が抑制されるように固定部（移動抑制部）に固定あるいは保持されている。ここで、仕切壁２４、あるいは底面部７８０には、真空断熱材４００が設けられている。   Further, since the rail support portion 820 is integrally formed with the lower rail 812, which is a fixed rail of the rail member 810, by welding or the like, the rail member 810 can be easily assembled to the rail portion 755 of the inner box 750. The rail support portion 820 is placed on the partition wall 24 provided between the storage chambers or on the bottom surface portion 780, and is positioned so that the rail member 810 does not move downward. Alternatively, the bottom surface portion 780 is provided with a fixing portion that fixes or holds the rail support portion 820 with a screw or the like, and is fixed so that the upward or lateral movement of the rail support portion 820 or the rail member 810 is suppressed. It is fixed or held on the part (movement restraining part). Here, a vacuum heat insulating material 400 is provided on the partition wall 24 or the bottom surface portion 780.

レール部材８１０は、図２４、図２５では、内箱７５０の内箱凹部７１７の外箱７１０側に設けられ、図２６では、内箱凸部７２７の外箱７１０側に設けられているが、レール部材８１０は、内箱凹部７１７あるいは内箱凸部７２７に設ける必要はなく、図２７のように内箱７５０の平坦部に設けても良い。   24 and 25, the rail member 810 is provided on the outer box 710 side of the inner box concave portion 717 of the inner box 750, and in FIG. 26, the rail member 810 is provided on the outer box 710 side of the inner box convex portion 727. The rail member 810 does not need to be provided in the inner box concave portion 717 or the inner box convex portion 727, and may be provided in a flat portion of the inner box 750 as shown in FIG.

図２７において、レール部材８１０は、内箱７５０のレール部７５５に設けられるが、レール部７５５は、内箱７５０の平坦面にネジなどの固定部材７３５により固定されている。また、レール部７５５の外箱７１０側の面には補強部材７３１が設けられており、補強部材７３１は、真空断熱材４００との間に充填されるウレタン等の断熱材７０１によって固定あるいは保持される。このとき、補強部材７３１は、内箱７５０にホットメルトや両面テープなどの第２の接着材で接着あるいは固定された状態で断熱材７０１が充填されることによって内箱７５０の外箱７１０側の面に保持あるいは固定される。   In FIG. 27, the rail member 810 is provided on the rail portion 755 of the inner box 750, and the rail portion 755 is fixed to the flat surface of the inner box 750 by a fixing member 735 such as a screw. A reinforcing member 731 is provided on the surface of the rail portion 755 on the outer box 710 side, and the reinforcing member 731 is fixed or held by a heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400. The At this time, the reinforcing member 731 is filled with the heat insulating material 701 in a state of being bonded or fixed to the inner box 750 with a second adhesive material such as hot melt or double-sided tape, so that the inner box 750 is provided on the outer box 710 side. It is held or fixed to the surface.

図２７においては、図２４〜図２６と同様に、ウレタン等の断熱材７０１の密度は６０ｋｇ／ｍ３より大きくしているため、ネジなどの固定部材７３５の保持強度あるいは固定強度が向上し、ネジの緩みや外れや抜けが抑制される。また、補強部材７３１の保持強度あるいは固定強度が向上し、補強部材７３１の位置ズレの発生や、位置ズレによるネジの変形や内箱７５０のレール部７５５の変形が抑制でき、信頼性の高い冷蔵庫や機器が得られる。 In FIG. 27, as in FIGS. 24 to 26, since the density of the heat insulating material 701 such as urethane is larger than 60 kg / m 3 , the holding strength or fixing strength of the fixing member 735 such as a screw is improved, Screw loosening, removal and removal are suppressed. Further, the holding strength or the fixing strength of the reinforcing member 731 is improved, and the occurrence of positional displacement of the reinforcing member 731, deformation of screws due to positional displacement, and deformation of the rail portion 755 of the inner box 750 can be suppressed, and a highly reliable refrigerator And equipment.

また、真空断熱材４００と内箱７５０のレール部７５５との間に充填されるウレタンなどの断熱材７０１の厚さＰは、１１ｍｍ以下（ばらつきや真空断熱材の表面の凹凸などを考慮すると１０ｍｍよりも小さい方が良い）、好ましくは６ｍｍ以下に設定されているので、ウレタンなどの断熱材７０１の曲げ弾性率を大きくでき箱体７００あるいは冷蔵庫１の強度向上が図れる。また、補強部材７３１と真空断熱材４００との間に充填されるウレタンなどの断熱材７０１の厚さＲは、所定厚さＰよりも補強部材７３１の厚さ分だけ小さくたとえば補強部材７３１の厚さが２ｍｍとすれば８ｍｍ以下、補強部材７３１の厚さを４ｍｍとすれば６ｍｍ程度以下に設定できるので、更なる強度向上が図れる。   In addition, the thickness P of the heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400 and the rail portion 755 of the inner box 750 is 11 mm or less (10 mm in consideration of variations and unevenness of the surface of the vacuum heat insulating material). Since it is preferably set to 6 mm or less, the bending elastic modulus of the heat insulating material 701 such as urethane can be increased, and the strength of the box 700 or the refrigerator 1 can be improved. Further, the thickness R of the heat insulating material 701 such as urethane filled between the reinforcing member 731 and the vacuum heat insulating material 400 is smaller than the predetermined thickness P by the thickness of the reinforcing member 731, for example, the thickness of the reinforcing member 731. If the thickness is 2 mm, it can be set to 8 mm or less, and if the thickness of the reinforcing member 731 is 4 mm, it can be set to about 6 mm or less.

また、図２７においては、内箱７５０のレール部７５５の端部（たとえば下端）は、内箱７５０が貯蔵室側に突出した突出部７５７を形成しており、この突出部７５７の上面にレール部材８１０のレール支持部８２０が載置されている。この突出部７５７の貯蔵室側への幅方向の突出長さは、レール部材８１０の幅方向への突出長さよりの小さく設定されており、レール部材８１０よりも貯蔵室内に突出しないようにすることで貯蔵室容積やケース容積の容積が小さくなることを抑制している。   In FIG. 27, the end portion (for example, the lower end) of the rail portion 755 of the inner box 750 forms a protruding portion 757 in which the inner box 750 protrudes toward the storage chamber. A rail support portion 820 of the member 810 is placed. The protruding length in the width direction of the protruding portion 757 toward the storage chamber is set to be smaller than the protruding length in the width direction of the rail member 810 so that it does not protrude into the storage chamber from the rail member 810. Thus, the storage chamber volume and the case volume are prevented from being reduced.

また、レール支持部８２０はレール部材８１０の固定レールである下レール８１２に溶接などにより一体に形成されているので、レール部材８１０を内箱７５０のレール部７５５に組み付けるのが容易である。また、レール支持部８２０は、レール部７５５の端部（下端）に形成された突出部７５７の上面側に載置されており、レール部材８１０が下方へ移動しないように位置決めされており、また、突出部７５７の上面側には、レール支持部８２０をネジなどで固定あるいは保持する固定部が設けられており、レール支持部８２０あるいはレール部材８１０の上方あるいは横方向への移動が抑制されるように固定部（移動抑制部）に固定あるいは保持されている。   Further, since the rail support portion 820 is integrally formed with the lower rail 812, which is a fixed rail of the rail member 810, by welding or the like, the rail member 810 can be easily assembled to the rail portion 755 of the inner box 750. Further, the rail support portion 820 is placed on the upper surface side of the protruding portion 757 formed at the end portion (lower end) of the rail portion 755, and is positioned so that the rail member 810 does not move downward. On the upper surface side of the protruding portion 757, a fixing portion for fixing or holding the rail support portion 820 with a screw or the like is provided, and the upward or lateral movement of the rail support portion 820 or the rail member 810 is suppressed. Thus, it is fixed or held by the fixed part (movement restraining part).

ここで、図２４、図２６では、レール部７５５が仕切壁２４あるいは底面壁７８０の近傍に設けられているため、レール部材８１０が仕切壁２４あるいは底面壁７８０の近傍に取り付けられることになり、ケース５２０が高さ方向の下方位置で支持されることになるのでレール部材８１０の載置強度が向上するので良いが、図２５、図２７では、レール部７５５が仕切壁２４あるいは底面壁７８０と所定距離Ｇを有しているため、レール部材８１０が仕切壁２４あるいは底面壁７８０に対して所定距離Ｇだけ上部に取り付けることが可能となるので、ケース５２０の支持位置を上部にすることが可能となり、ケースの出し入れがスムーズに行える。また、レール部材８１０のケース支持部８３０の長さを短くできるので、強度の向上が図れ、しかも低コストなレール部材、冷蔵庫が得られる。   Here, in FIG. 24 and FIG. 26, since the rail portion 755 is provided in the vicinity of the partition wall 24 or the bottom wall 780, the rail member 810 is attached in the vicinity of the partition wall 24 or the bottom wall 780. Since the case 520 is supported at a lower position in the height direction, the mounting strength of the rail member 810 may be improved. In FIGS. 25 and 27, the rail portion 755 is connected to the partition wall 24 or the bottom wall 780. Since the rail member 810 can be attached to the upper portion by the predetermined distance G with respect to the partition wall 24 or the bottom wall 780 since the predetermined distance G is provided, the support position of the case 520 can be raised. The case can be inserted and removed smoothly. Further, since the length of the case support portion 830 of the rail member 810 can be shortened, the strength can be improved, and a low-cost rail member and refrigerator can be obtained.

ここで、ケース５２０のケース側壁にケース段差部５２５を設け、レール部材８１０のケース支持部８３０がケース段差部５２５を支持するようにしても良い。このようにすることで、容易にケース５２０を支持できる。また、ケース５２０の高さ方向の下方あるいは下端近傍（たとえばケース５２０の高さの１／２以下好ましくは１／３以下の位置）で支持しても良いが、最下端であるケース底面壁の裏面を支持すれば、ケース５２０に段差部５２５を設ける必要がなくなり、ケース５２０の製造が容易になる。   Here, a case step portion 525 may be provided on the case side wall of the case 520, and the case support portion 830 of the rail member 810 may support the case step portion 525. By doing in this way, case 520 can be supported easily. The case 520 may be supported below the height of the case 520 or in the vicinity of the lower end (for example, a position of 1/2 or less, preferably 1/3 or less of the height of the case 520). If the back surface is supported, it is not necessary to provide the step portion 525 in the case 520, and the case 520 can be easily manufactured.

レール載置部である貯蔵室側に突出したレール部端部（レール部突出部）７５７が形成される内箱７５０と真空断熱材４００（あるいは外箱７１０）との間に充填されるウレタンなどの断熱材７０１（たとえば硬質ウレタンフォーム）の密度は６０ｋｇ／ｍ３より大きくした方が、レール部材載置部であるレール部端部７５７の強度が向上するので、ケース５２０に重量物を収納してもレール部材８１０を載置するレール部材載置部であるレール部突出部７５７が変形したりしないので、安定してケース５２０の出し入れが可能となり、信頼性の高い冷蔵庫や機器が得られる。 Urethane filled between the inner box 750 and the vacuum heat insulating material 400 (or the outer box 710) in which the rail part end part (rail part protruding part) 757 protruding to the storage chamber side which is the rail mounting part is formed. When the density of the heat insulating material 701 (for example, rigid urethane foam) is greater than 60 kg / m 3 , the strength of the rail end 757, which is the rail member mounting portion, is improved. However, since the rail part protrusion part 757 which is a rail member mounting part which mounts the rail member 810 does not deform | transform, the case 520 can be taken in and out stably, and a highly reliable refrigerator and apparatus are obtained.

ここで、レール部材８１０は、側壁７９０に設けなくても良く、レール部材８１０が配置される貯蔵室の仕切壁（貯蔵室と貯蔵室との間に設けられる仕切壁であって貯蔵室の底面あるいは上面を形成する仕切壁２４、あるいは底面壁７８０、あるいは天井壁７４０を含む）に設けても良い。すなわち、レール部材８１０を支持するレール支持部８２０を仕切壁（仕切壁２４あるいは天井壁７４０あるいは底面壁７８０を含む）に設けても良い（載置しても良い）。このように、レール部材８１０を支持するレール支持部８２０を貯蔵室の仕切壁２４に設けるようにすれば、側壁７９０に固定部材７３５を設ける必要がなくなるので、側壁に配置される真空断熱材４００の厚さを大きくでき、また、側壁７９０内の真空断熱材４００と内箱７５０との間に充填されるウレタンなどの断熱材７０１の厚さを小さくできる。したがって、貯蔵室内の容積、あるいはケース５２０の容積を大きくできる。   Here, the rail member 810 does not have to be provided on the side wall 790, but is a partition wall of a storage chamber in which the rail member 810 is disposed (a partition wall provided between the storage chamber and the storage chamber, and the bottom surface of the storage chamber). Alternatively, it may be provided on the partition wall 24 forming the upper surface, the bottom wall 780, or the ceiling wall 740). That is, the rail support portion 820 that supports the rail member 810 may be provided on the partition wall (including the partition wall 24, the ceiling wall 740, or the bottom wall 780) (may be placed). Thus, if the rail support part 820 that supports the rail member 810 is provided on the partition wall 24 of the storage chamber, it is not necessary to provide the fixing member 735 on the side wall 790, so the vacuum heat insulating material 400 disposed on the side wall is eliminated. In addition, the thickness of the heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400 and the inner box 750 in the side wall 790 can be reduced. Therefore, the volume in the storage chamber or the volume of the case 520 can be increased.

ここで、レール支持部８２０を仕切壁に設ける場合には、仕切壁２４あるいは底面壁７８０あるいは天井壁７４０において、レール固定部材７３５が設けられる位置には、真空断熱材４００を配置しないようにすれば良い。また、レール固定部材７３５が設けられる位置には、ネジなどの固定部材が固定される補強部材を設けるようにすれば、固定部材の固定強度あるいは保持強度が向上する。また、真空断熱材４００と仕切壁２４を形成する外郭部材との間に硬質ウレタンフォームあるいは発泡スチロールなどの断熱材を充填あるいは塗布あるいは配置する場合には、断熱材７０１の密度を６０ｋｇ／ｍ３よりも大きくすれば、レール部材８１０を固定あるいは保持する固定部材あるいは補強部材の保持あるいは固定強度が向上するので、信頼性が向上する。なお、断熱材７０１の厚さは、先に説明した理由により１０ｍｍより小さくするのが良い。 Here, when the rail support portion 820 is provided on the partition wall, the vacuum heat insulating material 400 is not arranged at the position where the rail fixing member 735 is provided on the partition wall 24, the bottom wall 780, or the ceiling wall 740. It ’s fine. Further, if a reinforcing member to which a fixing member such as a screw is fixed is provided at a position where the rail fixing member 735 is provided, the fixing strength or holding strength of the fixing member is improved. Further, when a heat insulating material such as rigid urethane foam or styrene foam is filled, applied, or disposed between the vacuum heat insulating material 400 and the outer member forming the partition wall 24, the density of the heat insulating material 701 is from 60 kg / m 3 . If it is also increased, the holding or fixing strength of the fixing member or the reinforcing member for fixing or holding the rail member 810 is improved, so that the reliability is improved. Note that the thickness of the heat insulating material 701 is preferably smaller than 10 mm for the reason described above.

以上は内箱７５０のレール部７５５を貯蔵室内側からネジなどで固定する場合（固定部材７３５であるネジのネジ頭が貯蔵室２、３、４、５、６側に設けられ、固定部材７３５のネジ部が内箱７５０のレール部７５５と真空断熱材４００の間に設けられている場合）について説明したが、固定部材のネジ７３５を側壁７９０の内部側から貯蔵室２、３、４、５、６内に突出させて固定させても良く、その場合には、ネジ頭が真空断熱材４００と内箱７５０のレール部７５５間に設けられる（ネジ部はレール部７５５あるいはレール補強部材７３１あるいはウレタン等の断熱材７０１に固定される）ことになるが、この場合でも、ウレタンの密度が６０ｋｇ／ｍ３より大きいので、ウレタン等の断熱材７０１の強度が増加し、ネジなどの固定部材７３５とウレタンなどの断熱材７０１、内箱７５０とウレタンなどの断熱材７０１の固定強度あるいは保持強度が増加するので、内箱などの変形や補強部材７３１の位置ズレやネジの緩み等が抑制され、ケース５２０などがスムーズに引き出せる（スムーズに出し入れできる）。 The above is the case where the rail portion 755 of the inner box 750 is fixed with screws or the like from the storage chamber side (the screw head of the screw which is the fixing member 735 is provided on the storage chamber 2, 3, 4, 5, 6 side, and the fixing member 735 The screw portion of the inner box 750 is provided between the rail portion 755 of the inner box 750 and the vacuum heat insulating material 400). In this case, the screw head is provided between the vacuum heat insulating material 400 and the rail portion 755 of the inner box 750 (the screw portion is the rail portion 755 or the rail reinforcing member 731). In this case, since the density of urethane is larger than 60 kg / m 3 , the strength of the heat insulating material 701 such as urethane is increased, and a fixing portion such as a screw is used. Since the fixing strength or holding strength of the heat insulating material 701 such as the urethane 735 and the inner box 750 and the heat insulating material 701 such as the urethane is increased, the deformation of the inner box and the like, the displacement of the reinforcing member 731 and the loosening of the screw are suppressed. Thus, the case 520 and the like can be pulled out smoothly (can be taken in and out smoothly).

本発明の実施の形態では、側壁７９０のレール部材が設けられる部位と対向する位置の内箱７５０と真空断熱材４００との間の発泡断熱材（たとえば硬質ウレタンフォーム）の厚さを１１ｍｍ以下（好ましくは１０ｍｍ未満）に設定することで、ウレタンの曲げ弾性率を大きくできるので、壁の強度を維持した上で壁厚を薄くすることができる。また、側壁７９０のレール部材が設けられる部位と対向する位置の内箱７５０と真空断熱材４００との間の発泡断熱材（たとえば硬質ウレタンフォーム）の厚さを６ｍｍ以下に設定すれば、ウレタンの曲げ弾性率をさらに大きくできるので、壁の強度を維持した上で壁厚を薄くすることができる。   In the embodiment of the present invention, the thickness of the foam heat insulating material (for example, hard urethane foam) between the inner box 750 and the vacuum heat insulating material 400 at a position facing the portion where the rail member of the side wall 790 is provided is 11 mm or less ( By setting it to preferably less than 10 mm, the flexural modulus of urethane can be increased, so that the wall thickness can be reduced while maintaining the strength of the wall. Moreover, if the thickness of the foam heat insulating material (for example, hard urethane foam) between the inner box 750 and the vacuum heat insulating material 400 at a position facing the portion where the rail member of the side wall 790 is provided is set to 6 mm or less, Since the flexural modulus can be further increased, the wall thickness can be reduced while maintaining the strength of the wall.

また、発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）を０．３以下に設定することで、発泡断熱材と真空断熱材を組み合わせた複合部材の複合熱伝導率を小さくできるので、壁厚さを薄くしても断熱性能が向上する。   Also, by setting the thickness of the foam insulation / (the thickness of the foam insulation + the thickness of the vacuum insulation) to 0.3 or less, the combined heat of the composite member combining the foam insulation and the vacuum insulation Since the conductivity can be reduced, the heat insulation performance is improved even if the wall thickness is reduced.

また、ウレタンの発泡後の密度を６０ｋｇ／ｍ３より大きくすることで壁の強度を維持した上で壁厚を薄くすることができる。 Moreover, the wall thickness can be reduced while maintaining the strength of the wall by making the density after foaming of urethane larger than 60 kg / m 3 .

以上より、本発明の実施の形態では、側壁７９０のレール部材が設けられる部位と対向する位置の内箱７５０と真空断熱材４００との間の発泡断熱材（たとえば硬質ウレタンフォーム）の厚さが１１ｍｍ以下（好ましくは１０ｍｍより小さい）であって、発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）を０．３以下に設定し、ウレタンの発泡後の密度を６０ｋｇ／ｍ３より大きくすれば、更に壁の強度を維持した上で壁厚を薄くすることができる。ここで、上式における発泡断熱材の厚さはウレタンの厚さであるので、発泡断熱材の厚さとしては、真空断熱材４００と内箱７５０のレール部７５５との間に充填されるウレタンなどの断熱材７０１の厚さＰ、あるいは真空断熱材４００と内箱７５０の間に充填されるウレタンなどの断熱材７０１の厚さＱ、あるいは真空断熱材４００と補強部材７３１の間のウレタンなどの断熱材７０１の厚さＲであっても良い。たとえば、発泡断熱材の厚さを真空断熱材４００と補強部材７３１の間のウレタンなどの断熱材７０１の厚さＲとした場合には、発泡断熱材の厚さＲ／（発泡断熱材の厚さＲ＋真空断熱材の厚さ）を０．３以下に設定すれば良い。同様に厚さをＰあるいはＱとした場合には、厚さＲをＰまたはＱに置き換えれば良い。また、図１７、図１８、図１９に示されているウレタンの厚さも、同様に真空断熱材４００と内箱７５０のレール部７５５との間に充填されるウレタンなどの断熱材７０１の厚さＰ、真空断熱材４００と内箱７５０の間に充填されるウレタンなどの断熱材７０１の厚さＱ、真空断熱材４００と補強部材７３１の間のウレタンなどの断熱材７０１の厚さＲであっても良い。
また、外箱７５０と内箱７１０とから形成され、背面壁７３０、側壁７９０を有する箱体と、箱体内が仕切壁２４により区画されて形成された前面に開口部を有する貯蔵室２、３、４、５、６と、貯蔵室に収納され、貯蔵室の側壁に設けられたレール部材８１０を介して引き出される引き出し式のケースと、芯材が無機繊維または有機繊維からなる繊維系材料で形成され、レール部材８１０が設けられた側壁を形成する内箱と外箱との間に配設された真空断熱材４００と、レール部材と対向する位置の内箱と真空断熱材との間の内箱側に設けられ、レール部材を支持あるいは保持する補強部材７３１と、レール部材と対向する位置の補強部材と真空断熱材との間に充填される断熱材７０１と、を備え、レール部材と対向する位置の断熱材の厚さが１０ｍｍよりより小さく、レール部の内箱と真空断熱材との間に充填される断熱材の密度を６０ｋｇ／ｍ３よりも大きくすれば、壁の強度を維持した上で壁厚を薄くすることができ、断熱性能も向上させることができる。ただし、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加による箱体等からのウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能低下、コストＵＰなどの問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）を１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 As described above, in the embodiment of the present invention, the thickness of the foam heat insulating material (for example, hard urethane foam) between the inner box 750 and the vacuum heat insulating material 400 at a position facing the portion where the rail member of the side wall 790 is provided. It is 11 mm or less (preferably smaller than 10 mm), and the density of the foamed heat insulating material / (the thickness of the foamed heat insulating material + the thickness of the vacuum heat insulating material) is set to 0.3 or less, and the density of urethane after foaming If the value is larger than 60 kg / m 3 , the wall thickness can be reduced while maintaining the strength of the wall. Here, since the thickness of the foam heat insulating material in the above equation is the thickness of urethane, the thickness of the foam heat insulating material is urethane filled between the vacuum heat insulating material 400 and the rail portion 755 of the inner box 750. Such as the thickness P of the heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400 and the inner box 750, or the urethane between the vacuum heat insulating material 400 and the reinforcing member 731. The thickness R of the heat insulating material 701 may be used. For example, when the thickness of the foam heat insulating material is the thickness R of the heat insulating material 701 such as urethane between the vacuum heat insulating material 400 and the reinforcing member 731, the thickness R / (thickness of the foam heat insulating material) R + thickness of vacuum heat insulating material) may be set to 0.3 or less. Similarly, when the thickness is P or Q, the thickness R may be replaced with P or Q. The thickness of the urethane shown in FIGS. 17, 18 and 19 is also the same as the thickness of the heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400 and the rail portion 755 of the inner box 750. P, the thickness Q of the heat insulating material 701 such as urethane filled between the vacuum heat insulating material 400 and the inner box 750, and the thickness R of the heat insulating material 701 such as urethane between the vacuum heat insulating material 400 and the reinforcing member 731. May be.
In addition, a box body formed of an outer box 750 and an inner box 710 and having a back wall 730 and a side wall 790, and storage chambers 2 and 3 having openings on the front surface formed by partitioning the box body by a partition wall 24. 4, 5, 6, a drawer-type case housed in the storage room and drawn out via a rail member 810 provided on the side wall of the storage room, and a fiber-based material in which the core material is made of inorganic fibers or organic fibers A vacuum heat insulating material 400 formed between the inner box and the outer box, which are formed and form a side wall provided with the rail member 810, and between the inner box and the vacuum heat insulating material at a position facing the rail member. A reinforcing member 731 provided on the inner box side for supporting or holding the rail member; and a heat insulating material 701 filled between the reinforcing member at a position facing the rail member and the vacuum heat insulating material. Insulation thickness at opposite location There less than than 10 mm, is made larger than 60 kg / m 3 density insulation is filled between the inner box and the vacuum insulation material of the rail portion, thinning the wall thickness in terms of maintaining the strength of the wall And heat insulation performance can be improved. However, if the density of heat insulating material such as urethane (for example, hard urethane foam) is too large, (1) the cost increases due to an increase in the injection amount of urethane, and (2) the box due to an increase in the injection pressure of urethane. Occurrence of urethane leaks, and (3) molds for suppressing box deformation due to increased foam pressure when foaming urethane, and adhesion and adhesion between the box pressing member and the urethane and the box pressing member, etc. Problems such as deterioration of quality, performance deterioration, and cost increase occur, such as the box holding member is difficult to remove from the box (it is difficult to remove from the box), and (4) the heat insulation performance is abruptly deteriorated due to the increased density of urethane. Therefore, the density of the insulating member such as urethane (for example, hard urethane foam) (the density after foaming in the case of the foamed insulating material) is 100 kg / m 3 or less (preferably). It is better to set it to 90 kg / m 3 or less.

また、真空断熱材４００の曲げ弾性率を２０ＭＰａ以上にすれば更に壁厚さを薄くできる。ここで、レール部材を側壁７９０に固定するのではなく、側壁７９０の近傍の底面壁７８０あるいは底面の仕切壁２４あるいは上面壁（天井壁）７４０あるいは上面の仕切壁２４に固定するようにすれば良い。ここで、ネジなどの固定部材を設ける部位と対向する内箱７５０と外箱７１０との間に真空断熱材４００を配置しない場合には、固定部材を設ける底面壁７８０あるいは下面の仕切壁２４あるいは天井壁７４０あるいは上面の仕切壁２４は、外気と接触しない壁あるいは仕切壁の方が良い。外気と接する壁（例えば側壁７９０、天井壁７４０、背面壁７３０、底面壁７８０など）には真空断熱材４００を設けない部位を極力少なくした方が熱漏洩により損失を低減できるので、高性能な断熱箱体、冷蔵庫、機器が得られる。このようにすることで、背面壁７３０、側壁７９０の真空断熱材４００の配設面積を大きくできるので、断熱箱体７００における真空断熱材４００の被覆率あるいは充填率を大きくすることができる。   Moreover, if the bending elastic modulus of the vacuum heat insulating material 400 is 20 MPa or more, the wall thickness can be further reduced. Here, instead of fixing the rail member to the side wall 790, the rail member may be fixed to the bottom wall 780 near the side wall 790, the bottom partition wall 24, the top wall (ceiling wall) 740, or the top partition wall 24. good. Here, in the case where the vacuum heat insulating material 400 is not disposed between the inner box 750 and the outer box 710 facing the portion where the fixing member such as a screw is provided, the bottom wall 780 provided with the fixing member or the lower partition wall 24 or The ceiling wall 740 or the upper partition wall 24 is preferably a wall or partition wall that does not come into contact with outside air. It is possible to reduce the loss due to heat leakage by reducing the part where the vacuum heat insulating material 400 is not provided on the walls (for example, the side wall 790, the ceiling wall 740, the back wall 730, the bottom wall 780, etc.) that are in contact with the outside air. An insulated box, refrigerator, and equipment can be obtained. By doing in this way, since the arrangement | positioning area of the vacuum heat insulating material 400 of the back wall 730 and the side wall 790 can be enlarged, the coverage or the filling rate of the vacuum heat insulating material 400 in the heat insulation box 700 can be enlarged.

ここで、本実施の形態１に係る断熱箱体７００は、断熱箱体７００内の硬質ウレタンフォームが主に断熱機能を担うという従来の技術思想とは異なり真空断熱材４００が配設されている部分では、真空断熱材４００が断熱性能と箱体強度を担うという新たな技術思想に基づいている。このため、本実施の形態１に係る断熱箱体７００は、外箱７１０と内箱７５０との間に形成される壁内空間３１５内の真空断熱材４００の充填率（外箱７１０と内箱７５０との間に形成される壁内空間３１５の総体積に対する真空断熱材４００の体積の占める割合）を所定値以上（たとえば４０％以上（好ましくは４５％以上））としている。ここで、真空断熱材４００の充填率は、扉の外郭を形成する扉外板と扉内板との間の扉内空間の体積に対する真空断熱材４００の体積の占める割合である扉の充填率も含めている。   Here, the heat insulating box 700 according to the first embodiment is provided with the vacuum heat insulating material 400 unlike the conventional technical idea that the hard urethane foam in the heat insulating box 700 mainly bears the heat insulating function. In part, the vacuum heat insulating material 400 is based on a new technical idea that it bears heat insulating performance and box strength. For this reason, the heat insulation box 700 according to the first embodiment has a filling rate (the outer box 710 and the inner box) of the vacuum heat insulating material 400 in the wall space 315 formed between the outer box 710 and the inner box 750. The ratio of the volume of the vacuum heat insulating material 400 to the total volume of the intra-wall space 315 formed between 750 and 750 is a predetermined value or more (for example, 40% or more (preferably 45% or more)). Here, the filling rate of the vacuum heat insulating material 400 is the ratio of the volume of the vacuum heat insulating material 400 to the volume of the space in the door between the door outer plate and the door inner plate forming the outer shell of the door. Is also included.

従来は、外箱７１０あるいは内箱７５０の表面積に対する真空断熱材の占める面積の割合（被覆率）が所定の範囲に入るように真空断熱材を配置されており、真空断熱材４００の厚さの影響が考慮されないため、真空断熱材４００の厚さよりも硬質ウレタンフォームの厚さを大きくして断熱箱体の強度を硬質ウレタンでもたせようとしていた。従来は真空断熱材４００の被覆率を大きくして箱体の断熱性能を向上させようとしているが、真空断熱材４００の充填率を大きくして断熱性能と箱体強度の両方を向上させようとしていないため、真空断熱材４００の充填率は小さく（たとえば従来の冷蔵庫における充填率は２０％程度）、断熱性能が向上しない場合があり、また箱体強度は硬質ウレタンフォームにたよっていた。本実施の形態では、真空断熱材４００の厚さを考慮した充填率の考え方で真空断熱材４００を配置するようにしたので、従来のように断熱性能が向上しないということが無くなる。真空断熱材４００の充填率を所定値以上（たとえば４０％以上）にすることで、断熱性能が向上し、しかも、箱体強度、断熱性能を満足した上で壁厚さを薄くできるので、貯蔵室内容積を大きくでき、製品に要求される貯蔵室内容積を所定の容量以上に設定することができる。すなわち、真空断熱材４００の長さ、幅、厚さ、配置箇所を適切に設定できるので、壁厚さを低減でき、その分だけ貯蔵室内容積を大きくできる。   Conventionally, the vacuum heat insulating material is arranged so that the ratio (coverage) of the area occupied by the vacuum heat insulating material to the surface area of the outer box 710 or the inner box 750 falls within a predetermined range. Since the influence is not taken into consideration, the thickness of the hard urethane foam is made larger than the thickness of the vacuum heat insulating material 400 so that the strength of the heat insulating box is made of hard urethane. In the past, attempts were made to improve the heat insulation performance of the box by increasing the coverage of the vacuum heat insulating material 400, but trying to improve both the heat insulation performance and the strength of the box by increasing the filling rate of the vacuum heat insulating material 400. Therefore, the filling rate of the vacuum heat insulating material 400 is small (for example, the filling rate in a conventional refrigerator is about 20%), the heat insulation performance may not be improved, and the box strength depends on the rigid urethane foam. In the present embodiment, since the vacuum heat insulating material 400 is arranged based on the concept of the filling rate in consideration of the thickness of the vacuum heat insulating material 400, the heat insulating performance is not improved as in the conventional case. By setting the filling rate of the vacuum heat insulating material 400 to a predetermined value or more (for example, 40% or more), the heat insulation performance is improved, and the wall thickness can be reduced while satisfying the box strength and the heat insulation performance. The indoor volume can be increased, and the storage indoor volume required for the product can be set to a predetermined capacity or more. That is, since the length, width, thickness, and arrangement location of the vacuum heat insulating material 400 can be set appropriately, the wall thickness can be reduced, and the volume in the storage chamber can be increased accordingly.

このように、空間３１５内における真空断熱材４００の充填率を従来よりも増大させることにより、断熱性能が従来よりも向上するので、従来よりも断熱箱体７００の壁厚を薄くしても、断熱性能を従来と同程度以上に確保することが可能となる。   Thus, by increasing the filling rate of the vacuum heat insulating material 400 in the space 315 than before, the heat insulating performance is improved than before, so even if the wall thickness of the heat insulating box 700 is made thinner than before, It becomes possible to ensure the heat insulation performance at the same level or higher.

（第１風路部品の他の構成）
以上説明したように、本発明の実施の形態では、たとえば図４、図５、図６、図８などに示した冷気風路７６０の一部を形成する第１風路部品７６２の幅方向長さは、凹部４４０の幅よりも小さくなっており、凸部４５０、または第２の凹部４４１、または第２の凹部４４１を形成する突起部９１０などにネジなどの固定部材あるいは引っ掛け構造あるいは嵌合構造などにより固定あるいは保持される。ここで、冷気風路７６０の一部を形成する第１風路部品７６２の幅方向長さを背面壁７３０あるいは側壁７９０の一部を覆うように側壁７９０の内面まで延出させて第１風路部品７６２を側壁７９０の内面にネジなどの固定部材あるいは引っ掛け構造あるいは嵌合構造などにより固定あるいは保持しても良い。もちろん、第１風路部品７６２を側壁７９０の内面だけでなく突起部９１０、凹部４４０、凸部４５０などに固定部材あるいは引っ掛け構造あるいは嵌合構造などにより固定あるいは保持しても良い。 (Other configurations of the first air passage parts)
As described above, in the embodiment of the present invention, for example, the length in the width direction of the first air passage component 762 that forms part of the cold air passage 760 shown in FIGS. 4, 5, 6, 8, and the like. The width is smaller than the width of the concave portion 440, and a fixing member such as a screw, a hook structure, or a fitting structure is fitted to the convex portion 450, the second concave portion 441, or the projection portion 910 that forms the second concave portion 441. It is fixed or held by the structure. Here, the length in the width direction of the first air passage component 762 forming a part of the cold air passage 760 is extended to the inner surface of the side wall 790 so as to cover the rear wall 730 or a part of the side wall 790. The road component 762 may be fixed or held on the inner surface of the side wall 790 by a fixing member such as a screw, a hook structure, or a fitting structure. Of course, the first air path component 762 may be fixed or held not only on the inner surface of the side wall 790 but also on the protrusion 910, the recess 440, the protrusion 450, and the like by a fixing member, a hook structure, or a fitting structure.

また、冷気風路７６０の一部を形成する第１風路部品７６２の幅方向長さを側壁７９０の内面まで延出させて第２の凹部４４１だけでなく凹部４４０、凸部４５０の少なくとも一部あるいは全部を覆うようにすれば、第１風路部品７６２が意匠パネルと兼用でき、室（たとえば貯蔵室）の背面壁７３０、あるいは側壁７９０の内面の少なくとも一部あるいは全部を覆うことが可能となり、第１風路部品７６２を背面あるいは側面の一部を覆うカバー部材として使用できる。したがって、冷気風路７６０からの冷気を室内に供給する供給口を第１風路部品７６２に設ける場合に配置の自由度が向上し、室内の収納物を効率よく冷却でき、また、第１風路部品７６２に内箱７５０とは異なる別部材が使用できるので、形状や色を変更したり、種々の加工やペイントや文字記載などが容易にできるので、機能性や意匠性が向上する。第１風路部品を意匠パネルと兼用してカバー部材として使用する場合には、略Ｕ字形状に形成して、室を形成する背面壁７３０及び側壁７９０の内面の少なくとも一部、あるいは壁面の内面全部を覆うようにすれば良い。この場合、照明装置（庫内照明）９００は、室を形成する天井壁７４０あるいは底面壁７８０に配置するようにすれば、カバー部材である第１風路部品７６２を側壁７９０まで延出させる場合に、照明装置９００を側壁７９０内面に設ける場合に比べての照明装置９００の設置される部分の第１風路部品７６２を切り欠いたり開口を設けたりする必要がなくなるので、カバー部材である意匠パネル（第１風路部品７６２）の形状が容易になり、低コストな断熱箱体、冷蔵庫、機器が得られる。ここで、カバー部材である意匠パネルは、室を形成する天井壁７４０と背面壁７３０の少なくとも一部、あるいは壁面の内面側全部を覆うように形成しても良い。   Further, the length in the width direction of the first air passage component 762 forming a part of the cold air passage 760 is extended to the inner surface of the side wall 790 so that at least one of the concave portion 440 and the convex portion 450 as well as the second concave portion 441. If the part or the whole is covered, the first air passage component 762 can also be used as a design panel, and can cover at least a part or the whole of the back wall 730 of the chamber (for example, the storage room) or the inner surface of the side wall 790. Thus, the first air passage component 762 can be used as a cover member that covers a part of the back surface or the side surface. Therefore, when the supply port for supplying the cold air from the cold air passage 760 to the room is provided in the first air passage component 762, the degree of freedom of arrangement can be improved, and the stored items in the room can be efficiently cooled. Since another member different from the inner box 750 can be used for the road part 762, the shape and color can be changed, and various processing, painting, character description, and the like can be easily performed, so that the functionality and design are improved. When the first air path component is also used as a cover member in combination with the design panel, it is formed in a substantially U shape, and at least part of the inner surfaces of the back wall 730 and the side wall 790 forming the chamber, or the wall surface Cover the entire inner surface. In this case, if the lighting device (inside lighting) 900 is arranged on the ceiling wall 740 or the bottom wall 780 forming the chamber, the first air path component 762 that is a cover member extends to the side wall 790. In addition, it is not necessary to cut out or provide an opening in the first air passage component 762 in the portion where the lighting device 900 is installed, compared to the case where the lighting device 900 is provided on the inner surface of the side wall 790. The shape of the panel (first air passage component 762) becomes easy, and a low-cost heat insulating box, refrigerator, and equipment can be obtained. Here, the design panel as the cover member may be formed so as to cover at least a part of the ceiling wall 740 and the back wall 730 forming the chamber, or the entire inner surface side of the wall surface.

（ウレタンの厚さ、真空断熱材の充填率）
ここで、真空断熱材４００の充填率と箱体の強度の関係について説明する。図１５は硬質ウレタンフォームの密度と熱伝導率の関係を示す図、図１６は硬質ウレタンフォームの密度と曲げ弾性率を示す図、図１７は硬質ウレタンを充填したときのウレタンの流路厚さとウレタンの熱伝導率の関係を示す図、図１８は硬質ウレタンを充填したときのウレタンの流路厚さとウレタンの曲げ弾性率の関係を示す図である。図１５〜図１８は、所定隙間（流路）を有する２つの面の間に硬質ウレタンを充填させて発泡させた模擬構造体での試験結果であり、流路の一方の面は第１の部材である鋼板（たとえば真空断熱材あるいは冷蔵庫１の断熱箱体７００の外郭である外箱７１０を形成する塗装鋼板）であり、流路の他方の面は第２の部材である樹脂（たとえば、内箱７５０に使用されるＡＢＳ（アクリロニトリル、ブタジエン、スチレンの共重合合成樹脂）やＥＰＳ（発泡プラスチック）などの樹脂）である。 (Urethane thickness, vacuum insulation filling rate)
Here, the relationship between the filling rate of the vacuum heat insulating material 400 and the strength of the box will be described. 15 is a diagram showing the relationship between the density and thermal conductivity of rigid urethane foam, FIG. 16 is a diagram showing the density and bending elastic modulus of rigid urethane foam, and FIG. 17 is the flow path thickness of urethane when filled with rigid urethane. FIG. 18 is a diagram showing the relationship between the thermal conductivity of urethane, and FIG. 18 is a diagram showing the relationship between the urethane channel thickness and the flexural modulus of urethane when filled with hard urethane. 15 to 18 are test results of a simulated structure in which hard urethane is filled between two surfaces having a predetermined gap (channel) and foamed, and one surface of the channel is the first surface. It is a steel plate that is a member (for example, a vacuum heat insulating material or a coated steel plate that forms the outer box 710 that is the outer shell of the heat insulating box 700 of the refrigerator 1), and the other surface of the flow path is a resin that is a second member (for example, ABS (resin such as acrylonitrile, butadiene, styrene copolymer synthetic resin) or EPS (foamed plastic)) used for the inner box 750.

図１５は、横軸が硬質ウレタンフォームの密度（ｋｇ／ｍ３）を表し、縦軸が硬質ウレタンフォームの熱伝導率〔Ｗ／（ｍ・Ｋ）〕を表している。また、図１６は、横軸が硬質ウレタンフォームの密度（ｋｇ／ｍ３）を表し、縦軸が硬質ウレタンフォームの曲げ弾性率（ＭＰａ）を表している。図１７は、横軸が硬質ウレタンフォームが充填される流路厚さ（ｍｍ）を表し、縦軸が硬質ウレタンフォームの熱伝導率〔Ｗ／（ｍ・Ｋ）〕を表している。図１８は、横軸が硬質ウレタンフォームが充填される流路厚さ（ｍｍ）を表し、縦軸が硬質ウレタンフォームの曲げ弾性率（ＭＰａ）を表している。ここで、硬質ウレタンフォームが充填される流路厚さは、流路内に硬質ウレタンフォームが充填されて発泡した状態の硬質ウレタンフォームの厚さを表す。 In FIG. 15, the horizontal axis represents the density (kg / m 3 ) of the rigid urethane foam, and the vertical axis represents the thermal conductivity [W / (m · K)] of the rigid urethane foam. In FIG. 16, the horizontal axis represents the density (kg / m 3 ) of the rigid urethane foam, and the vertical axis represents the flexural modulus (MPa) of the rigid urethane foam. In FIG. 17, the horizontal axis represents the channel thickness (mm) filled with the rigid urethane foam, and the vertical axis represents the thermal conductivity [W / (m · K)] of the rigid urethane foam. In FIG. 18, the horizontal axis represents the channel thickness (mm) filled with the hard urethane foam, and the vertical axis represents the bending elastic modulus (MPa) of the hard urethane foam. Here, the thickness of the flow path filled with the hard urethane foam represents the thickness of the hard urethane foam in a state where the hard urethane foam is filled in the flow path and foamed.

図１５、図１６より、硬質ウレタンフォームは、密度が大きくなると熱伝導率、曲げ弾性率が大きくなり、密度が小さくなると熱伝導率、曲げ弾性率が小さくなる。すなわち、密度と熱伝導率あるいは密度と曲げ弾性率はほぼ比例関係になっている。   15 and 16, the rigid urethane foam has a higher thermal conductivity and a flexural modulus when the density is increased, and a lower thermal conductivity and a flexural modulus when the density is decreased. That is, the density and the thermal conductivity or the density and the flexural modulus are almost proportional.

図１７、図１８より、硬質ウレタンフォームは、ウレタンが充填される流路厚さ（あるいは、流路内に硬質ウレタンフォームが充填されて発泡した状態のウレタンの厚さ）が狭くなると熱伝導率が大きくなり、また、曲げ弾性率も大きくなる。したがって、流路内で発泡後のウレタンの厚さは厚いほど熱伝導率が小さくなり断熱性能は向上するが、曲げ弾性率は小さくなり強度が低下する。したがって、ウレタンの厚さを小さくして壁厚さを薄くしようとした場合には、曲げ弾性率が大きくなるので強度上は問題なかったが、熱伝導率が大きくなりすぎて断熱性能が悪化するためウレタンの厚さをある程度（たとえば１５ｍｍ）よりも小さくすることができなかった。   From FIG. 17 and FIG. 18, the rigid urethane foam has a thermal conductivity when the thickness of the flow path filled with urethane (or the thickness of the urethane foam filled with the hard urethane foam in the flow path) becomes narrower. Increases, and the flexural modulus increases. Therefore, as the thickness of urethane after foaming in the channel increases, the thermal conductivity decreases and the heat insulation performance improves, but the flexural modulus decreases and the strength decreases. Therefore, when trying to reduce the wall thickness by reducing the thickness of the urethane, there was no problem in strength because the flexural modulus increased, but the thermal conductivity increased too much and the heat insulation performance deteriorated. Therefore, the thickness of the urethane could not be made smaller than a certain level (for example, 15 mm).

ここで、図１７、図１８において、ウレタンが充填される流路厚さ（あるいは流路内で発泡した後のウレタンの厚さ）が狭くなると密度が大きくなり、密度が大きくなると図１５に示したように熱伝導率が大きくなり断熱性能が悪くなる。ここで、図１７に示すようにウレタンが充填される流路厚さ（あるいは流路内で発泡した後のウレタンの厚さ）が所定の厚さ（たとえば１１ｍｍ）以下になると急激に熱伝導率が大きくなり断熱性能が悪化する。硬質ウレタンフォームは、ウレタン流路を形成する第１の部材と第２の部材の間で発泡して第１の部材と第２の部材に接着した状態で固まるが、このときウレタンは、コア層と、このコア層の両側（第１の部材側と第２の部材側）にスキン層といわれる境界層が形成される。   Here, in FIGS. 17 and 18, when the thickness of the flow path filled with urethane (or the thickness of urethane after foaming in the flow path) is narrowed, the density is increased, and when the density is increased, it is shown in FIG. As described above, the thermal conductivity increases and the heat insulation performance deteriorates. Here, as shown in FIG. 17, when the thickness of the flow path filled with urethane (or the thickness of urethane after foaming in the flow path) becomes a predetermined thickness (for example, 11 mm) or less, the thermal conductivity is rapidly increased. Becomes larger and heat insulation performance deteriorates. The rigid urethane foam is foamed between the first member and the second member forming the urethane flow path and solidified in a state of being bonded to the first member and the second member. At this time, the urethane is a core layer. Then, boundary layers called skin layers are formed on both sides (first member side and second member side) of the core layer.

図２３Ａと図２３Ｂは、硬質ウレタンフォームが発泡した後の断面形状の模式図であり、図２３Ａは、第１部材（内箱７５０）と第２部材（外箱７１０）の間に硬質ウレタンフォーム７０１Ａが充填された場合の断面を表した模式図、図２３Ｂは、第１部材（内箱７５０）と第２部材（外箱７１０）の間に第３部材（真空断熱材４００）が介在した場合に第１部材と第３部材の間に硬質ウレタンフォーム７０１Ａが充填された場合の断面を表した模式図である。   23A and 23B are schematic views of a cross-sectional shape after the rigid urethane foam is foamed, and FIG. 23A is a diagram of the rigid urethane foam between the first member (inner box 750) and the second member (outer box 710). FIG. 23B is a schematic diagram showing a cross section when 701A is filled, and FIG. 23B shows a third member (vacuum heat insulating material 400) interposed between the first member (inner box 750) and the second member (outer box 710). It is the schematic diagram showing the cross section when the hard urethane foam 701A is filled between the 1st member and the 3rd member in the case.

図２３Ａにおいて、第１の部材と第２の部材との間に発泡充填されたウレタンを備えた断熱壁は、第１の部材（たとえば内箱７５０）、第１のスキン層７０１Ｂ、コア層７０１Ｃ、第２のスキン層７０１Ｄ、第２の部材（たとえば外箱７１０）の順で構成される。一方、図２３Ｂに示すように第１の部材（内箱７５０）と第２の部材（外箱７１０）の間に、第３の部材として真空断熱材４００が配設される場合には、断熱壁は、第１の部材（内箱７５０）、第１のスキン層７０１Ｂ、コア層７０１Ｃ、第２のスキン層７０１Ｄ、第３の部材（真空断熱材４００）、第２の接着剤７１５、第２の部材（外箱７１０）の順で構成される。なお、第１のスキン層７０１Ｂ、コア層７０１Ｃ、及び第２のスキン層７０１Ｄが、硬質ウレタンフォーム７０１Ａを構成している。   In FIG. 23A, the heat insulating wall including urethane filled with foam between the first member and the second member includes the first member (for example, the inner box 750), the first skin layer 701B, and the core layer 701C. The second skin layer 701D and the second member (for example, the outer box 710) are configured in this order. On the other hand, when the vacuum heat insulating material 400 is disposed as the third member between the first member (inner box 750) and the second member (outer box 710) as shown in FIG. The wall includes a first member (inner box 750), a first skin layer 701B, a core layer 701C, a second skin layer 701D, a third member (vacuum heat insulating material 400), a second adhesive 715, a second adhesive 715, It is comprised in order of 2 members (outer box 710). Note that the first skin layer 701B, the core layer 701C, and the second skin layer 701D constitute a rigid urethane foam 701A.

スキン層は、第１の部材近傍あるいは第２の部材近傍あるいは第３の部材近傍に形成され、ウレタンの流路厚さ（ウレタンの厚さ）が従来使用される範囲である２０ｍｍ〜３０ｍｍ程度ではスキン層の厚さはコア層の厚さに対して十分小さく、密度、熱伝導率などへの影響は小さいが、ウレタンの厚さが所定厚さ（たとえば１１ｍｍ）以下になると、コア層の厚さに対するスキン層の厚さの占める割合が大きくなり、ウレタンの密度、熱伝導率、曲げ弾性率に対する影響が急激に大きくなり、密度、熱伝導率、曲げ弾性率が急激に大きくなる。したがって、断熱性能が急激に悪化する。また、図１８に示すように、ウレタンの密度が上昇することによりウレタンの曲げ弾性率も急激に上昇する。   The skin layer is formed in the vicinity of the first member, in the vicinity of the second member, or in the vicinity of the third member, and the flow path thickness of urethane (urethane thickness) is about 20 mm to 30 mm, which is a conventionally used range. The thickness of the skin layer is sufficiently small with respect to the thickness of the core layer, and the influence on the density, thermal conductivity, etc. is small. However, when the thickness of the urethane becomes a predetermined thickness (for example, 11 mm) or less, the thickness of the core layer The ratio of the thickness of the skin layer to the thickness increases, the influence on the density, thermal conductivity, and flexural modulus of urethane increases rapidly, and the density, thermal conductivity, and flexural modulus increase rapidly. Therefore, the heat insulation performance deteriorates rapidly. Further, as shown in FIG. 18, the flexural modulus of urethane increases rapidly as the density of urethane increases.

したがって、従来は、ウレタンの厚さを小さくすると曲げ弾性率は大きくなり強度は向上するが、ウレタンの熱伝導率が上昇して断熱性能が悪化するため、ウレタンの厚さを小さくできず１５ｍｍ〜３０ｍｍ程度の範囲で使用していた。従来は、ウレタンが主断熱材で真空断熱材が補助断熱材という考え方で配設しているため、ウレタン断熱材の断熱性能が悪化しない範囲でウレタンの厚さを決めており、狭い部分でも１５ｍｍ〜２０ｍｍ程度を確保していた。   Therefore, conventionally, when the thickness of the urethane is reduced, the flexural modulus increases and the strength is improved. However, since the thermal conductivity of the urethane is increased and the heat insulation performance is deteriorated, the thickness of the urethane cannot be reduced. It was used in the range of about 30 mm. Conventionally, since urethane is the main heat insulating material and vacuum heat insulating material is arranged as an auxiliary heat insulating material, the thickness of the urethane is determined within a range that does not deteriorate the heat insulating performance of the urethane heat insulating material. About 20 mm was secured.

しかしながら、本実施の形態では、真空断熱材が主断熱材であり、しかも真空断熱材で箱体の強度を持たせるという考え方で断熱壁を形成しているので、真空断熱材が配設されている部分の硬質ウレタンは、断熱性能を要求されないので、所定の厚さ（たとえば１１ｍｍ好ましくは６ｍｍ）以下であっても問題なく、薄ければ薄い方が曲げ弾性率が上昇し箱体強度が向上するので良い。所定の厚さが１１ｍｍ以下になるとコア層に対するスキン層の厚さの影響が大きくなり、熱伝導率が急激に大きくなり断熱性能が急激に低下するので、従来は硬質ウレタンフォームの厚さを１１ｍｍ以下にすることが困難であった。従来は、硬質ウレタンフォームの厚さについて、局所的に小さな範囲では所定値を１１ｍｍ以下にすることができたとしても平均的な厚さを１１ｍｍ以下にすることは困難であった。さらに所定の厚さが６ｍｍ以下になるとコア層に対するスキン層の厚さの影響がさらに大きくなり、断熱性能がさらに悪化するので、従来は使用困難であったが、本実施の形態では、真空断熱材４００に断熱箱体７００の断熱性能を持たせるため、ウレタンの厚さを薄くして使用しても問題ない。したがって、本実施の形態では、硬質ウレタンフォームの厚さを１１ｍｍ以下（好ましくは１０ｍｍより小さく）に設定することで、硬質ウレタンフォームの曲げ弾性率を大きくして箱体７００の強度（剛性）を向上させることができる。また、硬質ウレタンフォームの厚さを６ｍｍ以下に設定すれば、硬質ウレタンフォームの曲げ弾性率をさらに大きくできるので、箱体７００の強度（剛性）がさらに向する。   However, in this embodiment, the vacuum heat insulating material is the main heat insulating material, and the heat insulating wall is formed with the idea that the vacuum heat insulating material has the strength of the box, so the vacuum heat insulating material is disposed. Since the hard urethane part is not required to have heat insulation performance, there is no problem even if it is less than a predetermined thickness (for example, 11 mm, preferably 6 mm), and if it is thin, the bending elastic modulus increases and the box strength improves. So good. When the predetermined thickness is 11 mm or less, the influence of the thickness of the skin layer on the core layer increases, the thermal conductivity increases rapidly, and the heat insulation performance decreases rapidly. Conventionally, the thickness of the rigid urethane foam is 11 mm. It was difficult to make it below. Conventionally, with regard to the thickness of the rigid urethane foam, even if the predetermined value can be made 11 mm or less in a locally small range, it has been difficult to make the average thickness 11 mm or less. Further, when the predetermined thickness is 6 mm or less, the influence of the thickness of the skin layer on the core layer is further increased and the heat insulation performance is further deteriorated. Since the material 400 has the heat insulating performance of the heat insulating box 700, there is no problem even if the thickness of the urethane is reduced. Therefore, in this embodiment, by setting the thickness of the rigid urethane foam to 11 mm or less (preferably smaller than 10 mm), the bending elastic modulus of the rigid urethane foam is increased and the strength (rigidity) of the box 700 is increased. Can be improved. Further, if the thickness of the rigid urethane foam is set to 6 mm or less, the bending elastic modulus of the rigid urethane foam can be further increased, so that the strength (rigidity) of the box body 700 is further improved.

なお、真空断熱材４００が配設されていない部分では、ウレタンの厚さは、真空断熱材の厚さ（たとえば、１５ｍｍ〜３０ｍｍ程度）分だけ厚く形成できるので、ウレタンの厚さは２０ｍｍ〜４０ｍｍ程度を確保できるようになり、ウレタンの熱伝導率が急激に上昇する範囲（ウレタンの厚さ１１ｍｍ以下）で使用しなくて良くなり、ウレタンの熱伝導率の上昇度合い（傾き）が小さな範囲（たとえばウレタンの厚さがたとえば１５ｍｍ以上の範囲）で使用できるので、ウレタンの厚さのばらつきを考慮してもウレタンの断熱性能を所定値以下となるように確保可能となる。したがって、断熱箱体７００の強度及び断熱箱体７００の断熱性能の両方を満足することが可能となる。   In the portion where the vacuum heat insulating material 400 is not disposed, the thickness of the urethane can be increased by the thickness of the vacuum heat insulating material (for example, about 15 mm to 30 mm), so the thickness of the urethane is 20 mm to 40 mm. It is not necessary to use it in the range where the thermal conductivity of urethane rises rapidly (urethane thickness 11mm or less), and the degree of increase (slope) of urethane thermal conductivity is small (inclination) For example, since the thickness of the urethane can be used in a range of 15 mm or more, for example, the heat insulation performance of the urethane can be ensured to be equal to or less than a predetermined value even in consideration of variations in the thickness of the urethane. Therefore, both the strength of the heat insulation box 700 and the heat insulation performance of the heat insulation box 700 can be satisfied.

ここで、ウレタン流路の一方の面に使用される第１部材は、樹脂（たとえば、内箱７５０に使用されるＡＢＳ（アクリロニトリル、ブタジエン、スチレンの共重合合成樹脂）あるいはＥＰＳ（発泡プラスチックなどの樹脂））が使用される。流路の他方の面は真空断熱材の外包材であるアルミ蒸着フィルムや外箱７１０を形成する塗装鋼板（ＰＣＭ）などの鋼板が使用される。   Here, the first member used on one surface of the urethane flow path is made of resin (for example, ABS (acrylonitrile, butadiene, styrene copolymer synthetic resin) used for the inner box 750 or EPS (foamed plastic, etc.). Resin)) is used. For the other surface of the flow path, a steel plate such as an aluminum vapor deposition film, which is an outer packaging material of a vacuum heat insulating material, or a coated steel plate (PCM) forming an outer box 710 is used.

次に真空断熱材４００が配設されている部分（たとえば凹部４４０あるいは第２の凹部４４１など）において、発泡ウレタンと真空断熱材４００を備えた断熱壁の厚さ（真空断熱材の厚さ＋ウレタンの厚さ）に対するウレタンの厚さの比率（＝ウレタンの厚さ／（ウレタンの厚さ＋真空断熱材厚さ））と複合熱伝導率（真空断熱材とウレタンを合わせた断熱壁の熱伝導率）の関係について説明する。   Next, in a portion where the vacuum heat insulating material 400 is disposed (for example, the concave portion 440 or the second concave portion 441), the thickness of the heat insulating wall including the urethane foam and the vacuum heat insulating material 400 (the thickness of the vacuum heat insulating material + Ratio of urethane thickness to (urethane thickness) (= urethane thickness / (urethane thickness + vacuum insulation thickness)) and composite thermal conductivity (heat of insulation wall combining vacuum insulation material and urethane) The relationship of conductivity will be described.

図１９は、壁厚さ（壁の内壁間厚さ）を２７ｍｍで一定にしたときの真空断熱材とウレタンを合わせた断熱材の厚さに対するウレタンの厚さの比率と複合熱伝導率の関係を示す図である。図１９において、横軸は真空断熱材とウレタンを合わせた断熱材の厚さに対するウレタンの厚さの比率、すなわちウレタンの厚さ／（ウレタンの厚さ＋真空断熱材厚さ）を表し、縦軸は複合熱伝導率（真空断熱材とウレタンを合わせた熱伝導率）を表している。ここでは、ウレタンの厚さと真空断熱材の厚さの合計、すなわち、ウレタンの厚さ＋真空断熱材の厚さを壁内厚さとしている。   FIG. 19 shows the relationship between the ratio of the thickness of the urethane to the thickness of the heat insulating material combining the vacuum heat insulating material and the urethane when the wall thickness (thickness between the inner walls of the wall) is constant at 27 mm, and the composite thermal conductivity. FIG. In FIG. 19, the horizontal axis represents the ratio of the thickness of the urethane to the thickness of the heat insulating material in which the vacuum heat insulating material and the urethane are combined, that is, the urethane thickness / (urethane thickness + vacuum heat insulating material thickness). The axis represents the composite thermal conductivity (thermal conductivity combining vacuum insulation and urethane). Here, the sum of the thickness of urethane and the thickness of the vacuum heat insulating material, that is, the thickness of urethane + the thickness of the vacuum heat insulating material is defined as the thickness in the wall.

図１９より壁内厚さに対してウレタンの厚さが小さくなると複合熱伝導率が小さくなり断熱性能が向上することが分かる。ここで、複合熱伝導率とは、ウレタンと真空断熱材を合わせた複合部材の熱伝導率を表す。図において、ウレタンの厚さ／壁内厚さが０．３を堺にして傾きが変化しており、ウレタンの厚さ／壁内厚さが０．３よりも大きい場合に比べて、ウレタンの厚さ／壁内厚さが０．３程度以下の方が傾きが小さく複合熱伝導率の低下の割合が小さい。図は壁内厚さ一定での試験確認であるので、ウレタンの厚さ／壁内厚さの比が小さくなればなるほど、ウレタンの厚さが小さくなり逆に真空断熱材の厚さが大きくなるので、壁内厚さに対する真空断熱材の厚さの占める割合は大きくなる。すなわち、壁内厚さに対してウレタンの厚さが小さくなれば、ウレタンの厚さに対する真空断熱材の厚さの割合が増加することになる。図において、ウレタンの厚さ／壁内厚さが約０．６では、ウレタンの厚さの方が真空断熱材の厚さよりも大きいので、ウレタンの熱伝導率が複合熱伝導率（真空断熱材とウレタンを合わせた熱伝導率）に与える影響が大きく複合熱伝導率も大きい（断熱性能が悪い）。ウレタンの厚さ／壁内厚さを小さくしていくと、ウレタンの厚さに対する真空断熱材の厚さの割合が増加していくので、ウレタンの熱伝導率よりも真空断熱材の熱伝導率の影響の方が複合熱伝導率に与える影響が大きくなり、その結果、ウレタンの厚さ／（ウレタンの厚さ＋真空断熱材の厚さ）が小さくなるにつれてウレタンと真空断熱材を合わせた複合部材の熱伝導率（複合熱伝導率）が低下していく。ここで、ウレタンの厚さ／（ウレタンの厚さ＋真空断熱材の厚さ）が０．３程度までは、ウレタンの熱伝導率よりも真空断熱材の熱伝導率の影響の方が複合熱伝導率に与える影響が大きいので、複合熱伝導率の低下割合も大きく、ウレタンの厚さ／（ウレタンの厚さ＋真空断熱材の厚さ）が小さくなればなるほど複合熱伝導率が小さくなり断熱性能が大きく向上する。   It can be seen from FIG. 19 that when the thickness of the urethane is smaller than the wall thickness, the composite thermal conductivity is reduced and the heat insulation performance is improved. Here, composite heat conductivity represents the heat conductivity of the composite member which combined urethane and the vacuum heat insulating material. In the figure, the inclination of the urethane thickness / inner wall thickness changes from 0.3 to 堺, and the urethane thickness / inner wall thickness is greater than 0.3. When the thickness / inside wall thickness is about 0.3 or less, the inclination is small and the reduction rate of the composite thermal conductivity is small. Since the figure shows a test confirmation with a constant wall thickness, the smaller the ratio of urethane thickness / wall thickness, the smaller the urethane thickness and vice versa. Therefore, the ratio of the thickness of the vacuum heat insulating material to the thickness in the wall increases. That is, if the thickness of the urethane is reduced with respect to the thickness inside the wall, the ratio of the thickness of the vacuum heat insulating material to the thickness of the urethane is increased. In the figure, when the urethane thickness / inside wall thickness is about 0.6, the thickness of the urethane is larger than the thickness of the vacuum heat insulating material. Therefore, the heat conductivity of the urethane is a composite heat conductivity (vacuum heat insulating material). And the combined heat conductivity is large (insulation performance is poor). As the thickness of urethane / wall thickness decreases, the ratio of the thickness of the vacuum insulation to the thickness of the urethane increases, so the thermal conductivity of the vacuum insulation is higher than that of urethane. The effect of the effect on the composite thermal conductivity increases, and as a result, the composite of urethane and vacuum insulation is combined as the urethane thickness / (urethane thickness + vacuum insulation thickness) decreases. The thermal conductivity (composite thermal conductivity) of the member decreases. Here, until the thickness of urethane / (thickness of urethane + thickness of vacuum heat insulating material) is about 0.3, the influence of the heat conductivity of the vacuum heat insulating material is more than the heat conductivity of urethane on the combined heat. Since the effect on conductivity is large, the rate of decrease in composite thermal conductivity is also large. The smaller the thickness of urethane / (thickness of urethane + vacuum insulation material), the lower the composite thermal conductivity and heat insulation. Performance is greatly improved.

しかし、壁内厚さに対するウレタンの厚さの比率、すなわちウレタンの厚さ／（ウレタンの厚さ＋真空断熱材の厚さ）が０．３程度よりも小さくなるところから複合熱伝導率の低下の傾きが変化し、複合熱伝導率の低下の傾きが小さくなる（複合熱伝導率の低下の割合が小さくなる）。これは、壁内厚さに対するウレタンの厚さの比率、すなわちウレタンの厚さ／壁内厚さが小さくなったため、複合部材（ウレタンと真空断熱材を合わせた部材）の断熱性能に対し、真空断熱材の断熱性能が支配的となり、ウレタンの断熱性能が複合部材の断熱性能へ与える影響が小さくなったためと考えられる。したがって、本実施の形態では、複合部材（ウレタンと真空断熱材の両方が隣接して形成された断熱部材）により形成される断熱壁では、ウレタンの厚さ／壁内厚さを０．３以下となるようにウレタンの厚さを設定すれば、断熱性能の低下の割合が小さくなるので、ウレタンの厚さあるいは真空断熱材の厚さにバラツキが生じても断熱性能のバラツキが小さくできるので良い。逆に真空断熱材の厚さ／壁内厚さを０．７以上に設定しても良い。   However, the ratio of the thickness of the urethane to the wall thickness, that is, the thickness of the urethane / (the thickness of the urethane + the thickness of the vacuum heat insulating material) is smaller than about 0.3, so that the composite thermal conductivity decreases. The slope of decrease in the composite thermal conductivity becomes smaller (the rate of decrease in the composite thermal conductivity becomes smaller). This is because the ratio of the thickness of the urethane to the wall thickness, that is, the thickness of the urethane / the thickness of the wall, has been reduced, so that the heat insulation performance of the composite member (a member that combines urethane and vacuum insulation) is reduced to a vacuum. This is probably because the heat insulating performance of the heat insulating material becomes dominant and the influence of the heat insulating performance of urethane on the heat insulating performance of the composite member is reduced. Therefore, in this embodiment, in the heat insulating wall formed by the composite member (the heat insulating member in which both the urethane and the vacuum heat insulating material are formed adjacent to each other), the thickness of urethane / the thickness in the wall is 0.3 or less. If the thickness of the urethane is set so that the rate of decrease in the heat insulation performance decreases, even if the thickness of the urethane or the vacuum heat insulating material varies, the variation in the heat insulation performance can be reduced. . Conversely, the thickness of the vacuum heat insulating material / the thickness in the wall may be set to 0.7 or more.

したがって、ウレタンの厚さ／壁内厚さが０．３程度以下となるようにウレタンの厚さを設定すれば、複合熱伝導率を小さくでき、複合部材の断熱性能が大幅に向上する。また、ウレタンの厚さのバラツキ（あるいは真空断熱材の厚さのバラツキ）を考慮してウレタンの厚さ／壁内厚さを０．３以下の範囲内になるように設定すれば、ウレタンの厚さや真空断熱材の厚さがばらついたとしても複合部材の断熱性能の低下を抑制でき、しかも複合部材の複合熱伝導率のバラツキを抑制できるので、信頼性が高く、高性能な断熱壁、断熱箱体、冷蔵庫、機器などが得られる。   Therefore, if the urethane thickness is set so that the urethane thickness / in-wall thickness is about 0.3 or less, the composite thermal conductivity can be reduced, and the heat insulating performance of the composite member is greatly improved. In addition, if the thickness of the urethane / thickness in the wall is set within a range of 0.3 or less in consideration of the variation in the thickness of the urethane (or the variation in the thickness of the vacuum heat insulating material), Even if the thickness or the thickness of the vacuum heat insulating material varies, the deterioration of the heat insulating performance of the composite member can be suppressed, and the variation in the composite heat conductivity of the composite member can be suppressed. Insulated boxes, refrigerators, equipment, etc. are obtained.

図２０は壁内空間３１５の容積に対する真空断熱材４００の容積の占める割合である真空断熱材の充填率と、断熱箱体７００に負荷（荷重）を与えた時の断熱箱体の変形量の関係を示した図である。図２０において、横軸は、真空断熱材の充填率を表し、縦軸は断熱箱体の変形量を表す。ここで、真空断熱材の充填率は、壁内の空間３１５の容積に対して真空断熱材４００の占める容積の比率（割合）であり、断熱箱体の変形量は、たとえば冷蔵庫１などの断熱箱体において、扉のある状態で箱体の側面の上から約１／４程度の高さ位置に略水平方向（横方向、前面開口部を正面に見て左右方向）に所定の荷重を加えた時の箱体７００の側壁７９０の上端位置の左右方向（横方向）の変形量の計算結果であり、真空断熱材４００の充填率が２０％のときの変形量を１としている。図２０は、真空断熱材の被覆率（たとえば６５％）、ウレタン密度（たとえば６０ｋｇ／ｍ３）、ウレタンの曲げ弾性率（たとえば９ＭＰａ）、真空断熱材の曲げ弾性率（たとえば１５ＭＰａ）、複合部材の厚さ（たとえば２８ｍｍ）、外箱と内箱の厚さを加えた壁厚さ（たとえば３０ｍｍ）などは一定とし、真空断熱材の厚さを変化させて真空断熱材の充填率を変更した場合の結果である。 FIG. 20 shows the filling rate of the vacuum heat insulating material, which is the ratio of the volume of the vacuum heat insulating material 400 to the volume of the wall space 315, and the deformation amount of the heat insulating box when a load (load) is applied to the heat insulating box 700. It is the figure which showed the relationship. In FIG. 20, the horizontal axis represents the filling rate of the vacuum heat insulating material, and the vertical axis represents the deformation amount of the heat insulating box. Here, the filling rate of the vacuum heat insulating material is a ratio (ratio) of the volume occupied by the vacuum heat insulating material 400 to the volume of the space 315 in the wall, and the deformation amount of the heat insulating box is, for example, the heat insulation of the refrigerator 1 or the like. In the box, apply a predetermined load in the horizontal direction (lateral direction, left and right direction when the front opening is viewed in front) at a height of about 1/4 from the top of the side of the box with the door. This is a calculation result of the deformation amount in the left-right direction (lateral direction) of the upper end position of the side wall 790 of the box body 700, and the deformation amount when the filling rate of the vacuum heat insulating material 400 is 20% is 1. FIG. 20 shows the coverage of the vacuum heat insulating material (for example, 65%), the urethane density (for example, 60 kg / m 3 ), the bending elastic modulus of urethane (for example, 9 MPa), the bending elastic modulus of the vacuum heat insulating material (for example, 15 MPa), and the composite member The thickness (for example, 28 mm) of the outer wall and the wall thickness (for example, 30 mm) including the thickness of the outer box and the inner box is made constant, and the filling rate of the vacuum heat insulating material is changed by changing the thickness of the vacuum heat insulating material. Is the result of the case.

図２０において、真空断熱材の充填率が大きくなれば、箱体変形量が小さくなる。これは、真空断熱材の曲げ弾性率がウレタンの曲げ弾性率よりも大きいため、断熱箱体内のウレタン容積に対する真空断熱材の容積の比率が増加するに伴って真空断熱材の曲げ弾性率の影響が大きくなり箱体７００の剛性が増加したためであると考えられる。真空断熱材４００の充填率が４０％以上になると箱体の変形量の低下割合が極端に小さくなり、真空断熱材の充填率を大きくしても箱体変形量がほとんど変化しなくなっている。これは、箱体強度（箱体の変形）に対する真空断熱材４００の影響度合いがほぼ飽和に近づいたためと考えられる。   In FIG. 20, if the filling rate of a vacuum heat insulating material becomes large, the amount of box deformation will become small. This is because the bending elastic modulus of the vacuum heat insulating material is larger than the bending elastic modulus of the urethane, so that the effect of the bending elastic modulus of the vacuum heat insulating material increases as the ratio of the volume of the vacuum heat insulating material to the urethane volume in the heat insulating box increases. This is considered to be because the rigidity of the box 700 increased. When the filling rate of the vacuum heat insulating material 400 is 40% or more, the reduction rate of the deformation amount of the box body becomes extremely small, and even if the filling rate of the vacuum heat insulating material is increased, the deformation amount of the box body hardly changes. This is considered because the degree of influence of the vacuum heat insulating material 400 on the box strength (deformation of the box) is almost saturated.

真空断熱材４００は硬質ウレタンフォームよりも曲げ弾性率が大きいため、空間３１５内の容積に対する真空断熱材４００の容積の占める比率（割合）を大きくする（真空断熱材の充填率を大きくする）ことで断熱箱体７００の変形量を小さくできるので、断熱箱体７００の断熱性能が向上し、断熱箱体７００あるいは冷蔵庫１あるいは機器の箱体強度を大きくすることができる。この際、真空断熱材４００の厚みを増して充填率を大きくすれば箱体の強度ＵＰの効果とともに断熱性能も向上できる。ここで、真空断熱材の厚さを大きくすることで真空断熱材の充填率を大きくしても良いが、箱体７００の表面積に対する真空断熱材４００の表面積の割合（真空断熱材の被覆率）を大きくすることで真空断熱材の充填率を大きくしてもよく、この場合でも箱体の強度を大きくすることが可能であり、しかも、真空断熱材４００の被覆率を大きくすることで真空断熱材の充填率を大きくできる。また、真空断熱材４００の被覆率を大きくすれば、真空断熱材の配設範囲（配設部位）が増え、断熱箱体７００の壁厚を薄くすることができるので、壁厚が薄く出来る分だけ貯蔵室内容積を大きくできる。   Since the vacuum heat insulating material 400 has a higher flexural modulus than the rigid urethane foam, the ratio (ratio) of the volume of the vacuum heat insulating material 400 to the volume in the space 315 is increased (the filling rate of the vacuum heat insulating material is increased). Since the deformation amount of the heat insulating box 700 can be reduced, the heat insulating performance of the heat insulating box 700 can be improved, and the box strength of the heat insulating box 700 or the refrigerator 1 or the equipment can be increased. At this time, if the thickness of the vacuum heat insulating material 400 is increased to increase the filling rate, the heat insulating performance can be improved together with the effect of increasing the strength of the box. Here, the filling rate of the vacuum heat insulating material may be increased by increasing the thickness of the vacuum heat insulating material, but the ratio of the surface area of the vacuum heat insulating material 400 to the surface area of the box 700 (the coverage of the vacuum heat insulating material). The filling rate of the vacuum heat insulating material may be increased by increasing the size of the vacuum heat insulating material, and even in this case, the strength of the box can be increased, and the vacuum heat insulating material 400 can be increased by increasing the covering rate. The filling rate of the material can be increased. Further, if the coverage of the vacuum heat insulating material 400 is increased, the arrangement range (arrangement site) of the vacuum heat insulating material is increased, and the wall thickness of the heat insulating box 700 can be reduced, so that the wall thickness can be reduced. Only the storage chamber volume can be increased.

本実施の形態では、たとえば、断熱箱体の外郭を形成する外箱７１０と断熱箱体の貯蔵室の内壁の一部を形成する内箱７５０との間の空間３１５の少なくとも一部に真空断熱材４００を備え、空間３１５内の真空断熱材４００の充填率を４０％以上とし、外箱７１０の表面積に対する真空断熱材４００の面積比率（被覆率）を６０％以上とすることで、断熱性能が高く箱体強度も大きく信頼性の高い断熱箱体、冷蔵庫、機器などが得られる。ここで、本実施の形態では、従来の断熱箱体に用いられていた硬質ウレタンフォームよりも曲げ弾性率の高い真空断熱材４００にて断熱箱体７００の壁面強度を担う構成としているので、箱体強度と断熱性能の両方を満足させることができ、しかも壁厚さを薄くできるので、貯蔵室内容積も大きくできる。   In the present embodiment, for example, at least a part of the space 315 between the outer box 710 that forms the outer shell of the heat insulating box and the inner box 750 that forms a part of the inner wall of the storage chamber of the heat insulating box is vacuum insulated. Heat insulation performance by providing the material 400, filling the vacuum heat insulating material 400 in the space 315 to 40% or more, and setting the area ratio (coverage) of the vacuum heat insulating material 400 to the surface area of the outer box 710 to 60% or more. Highly reliable and highly reliable heat insulation box, refrigerator, equipment, etc. can be obtained. Here, in this Embodiment, since it is set as the structure which bears the wall surface strength of the heat insulation box 700 in the vacuum heat insulating material 400 whose bending elastic modulus is higher than the rigid urethane foam used for the conventional heat insulation box, Since both body strength and heat insulation performance can be satisfied, and the wall thickness can be reduced, the volume of the storage chamber can be increased.

本実施の形態に係る断熱箱体７００は、硬質ウレタンに比べ曲げ強度の高い真空断熱材４００の充填率を所定値以上（あるいは所定範囲内）に設定するか、あるいは真空断熱材４００の充填率と被覆率の両方を所定値以上（あるいは所定範囲内）に設定することで、断熱性能と箱体強度の両方を満足した上で断熱箱体７００の壁厚を薄くすることができる。したがって、断熱箱体７００や冷蔵庫１の外形サイズを変更せずに貯蔵室内の内容積を拡大でき、断熱箱体７００あるいは冷蔵庫１あるいは機器の内部に貯蔵できる収納物や貯蔵物を増やすことが可能となる。なお、壁強度が低下すると断熱箱体７００が歪み、例えば内部に設置されている棚８０がレール部よりはずれて落下したり、引き出し式の貯蔵室（あるいは引き出し式の扉あるいはケース、または開閉扉など）の摺動性が悪くなるといった不具合が発生するが、本実施の形態では、真空断熱材４００の充填率または／及び被覆率を所定値以上（所定範囲内）に設定するようにしているため、断熱箱体７００の壁厚を薄くすることができ、しかも箱体強度と断熱性能を向上させることができるので、棚８０がレール部よりはずれて落下したり、引き出し式の貯蔵室（あるいは扉あるいはケース、または開閉扉など）の摺動性が悪くなって信頼性が低下するのを抑制できる。   In the heat insulation box 700 according to the present embodiment, the filling rate of the vacuum heat insulating material 400 having higher bending strength than hard urethane is set to a predetermined value or more (or within a predetermined range), or the filling rate of the vacuum heat insulating material 400 By setting both the coverage and the coverage ratio to a predetermined value or more (or within a predetermined range), it is possible to reduce the wall thickness of the heat insulation box 700 while satisfying both the heat insulation performance and the box strength. Therefore, it is possible to increase the internal volume of the storage chamber without changing the external size of the heat insulation box 700 or the refrigerator 1, and it is possible to increase the amount of stored items and stored items that can be stored in the heat insulation box 700, the refrigerator 1, or the inside of the device. It becomes. When the wall strength is reduced, the heat insulating box 700 is distorted, for example, the shelf 80 installed inside is detached from the rail portion and dropped, or a drawer-type storage room (or a drawer-type door or case, or an open / close door). However, in this embodiment, the filling rate and / or coverage of the vacuum heat insulating material 400 is set to a predetermined value or more (within a predetermined range). Therefore, the wall thickness of the heat insulation box 700 can be reduced, and the box strength and heat insulation performance can be improved. It is possible to suppress deterioration in reliability due to poor slidability of a door, a case, or an open / close door.

また、本実施の形態に係る断熱箱体７００は、空間３１５内の真空断熱材４００の充填率を９０％以下としている。上述したような本実施の形態に係る技術思想によれば、空間３１５内を全て真空断熱材４００とするのが理想的である。しかしながら、図１１などでも説明したように、背面壁７３０には凸部４５０あるいは突起部９１０がもうけられており、また内箱７５０に形成されるレール部７５５が空間３１５内に突出して設けられており、また、断熱箱体７００を例えば冷蔵庫１に用いる場合、壁内空間３１５内には、断熱箱体７００の機械室１Ａに搭載される圧縮機１２や制御基板室３１に収納される制御装置３０（たとえば圧縮機の回転数等を制御するもの）等を接続する配線類をまとめたハーネスを収納するパイプ７２０も配設されることとなるので、真空断熱材４００の充填率を９０％よりも大きくすることは困難である。また、断熱箱体７００を例えば冷蔵庫１に適用する場合、空間３１５内には、冷媒配管７２５等も配設されることとなる。このため、空間３１５内に９０％を越えて真空断熱材４００を配設しようとすると、真空断熱材４００で配線類７２０や冷媒配管７２５やレール部７５５などの形状に合わせた真空断熱材４００が必要となり、真空断熱材４００の形状が複雑となるので、真空断熱材４００の成形（あるいは形成）が困難となるので、真空断熱材４００の充填率を９０％以下に設定している。   Moreover, in the heat insulation box 700 according to the present embodiment, the filling rate of the vacuum heat insulating material 400 in the space 315 is 90% or less. According to the technical idea according to the present embodiment as described above, it is ideal that the space 315 is entirely the vacuum heat insulating material 400. However, as described with reference to FIG. 11 and the like, the rear wall 730 is provided with a convex portion 450 or a protruding portion 910, and a rail portion 755 formed in the inner box 750 is provided to protrude into the space 315. In addition, when the heat insulating box 700 is used for the refrigerator 1, for example, the control device housed in the compressor 12 mounted in the machine room 1 </ b> A of the heat insulating box 700 or the control board chamber 31 in the wall space 315. Since a pipe 720 that houses a harness that collects wirings that connect 30 (for example, those that control the rotational speed of the compressor, etc.) is also disposed, the filling rate of the vacuum heat insulating material 400 is more than 90%. It is difficult to increase the size. In addition, when the heat insulating box 700 is applied to the refrigerator 1, for example, the refrigerant pipe 725 and the like are also provided in the space 315. For this reason, if it is going to arrange | position the vacuum heat insulating material 400 over 90% in the space 315, the vacuum heat insulating material 400 match | combined with shapes, such as wiring 720, the refrigerant | coolant piping 725, and the rail part 755, with the vacuum heat insulating material 400. It becomes necessary and the shape of the vacuum heat insulating material 400 becomes complicated, and it becomes difficult to form (or form) the vacuum heat insulating material 400. Therefore, the filling rate of the vacuum heat insulating material 400 is set to 90% or less.

また、断熱箱体７００の強度が低下して歪みが発生するのを抑えるためには外箱７１０と内箱７５０を真空断熱材４００と接着して接着強度を持たせる必要があるが、内箱７５０には貯蔵室（たとえば冷蔵室２）内に設置された棚８０を保持するためのレール部７５５やその他部品（たとえば照明装置９００あるいはミスト装置２００あるいは仕切壁２４など）が取り付けられていることが多く形状が複雑である。したがって、真空断熱材４００を外箱７１０側にホットメルトや両面テープなどの第２の接着剤で接着させることは容易でも、真空断熱材４００を形状が複雑な内箱７５０側に接着させて接着強度を得ることは困難である。   Further, in order to suppress the occurrence of distortion due to a decrease in strength of the heat insulating box 700, it is necessary to bond the outer box 710 and the inner box 750 to the vacuum heat insulating material 400 so as to have an adhesive strength. A rail portion 755 for holding the shelf 80 installed in the storage room (for example, the refrigerator compartment 2) and other parts (for example, the lighting device 900, the mist device 200, the partition wall 24, etc.) are attached to 750. There are many and the shape is complicated. Therefore, although it is easy to bond the vacuum heat insulating material 400 to the outer box 710 side with a second adhesive such as hot melt or double-sided tape, the vacuum heat insulating material 400 is bonded to the inner box 750 side having a complicated shape. It is difficult to obtain strength.

しかしながら、硬質ウレタンフォームを内箱７５０と真空断熱材４００との間の接着剤として使用すれば、空間３１５内に二相状態で流動させながら充填させて発泡させることが可能なので、空間３１５内に凸部４５０や突起部９１０やレール部７５５やその他の部品が存在する場合でも問題なく内箱７５０と真空断熱材４００とをウレタンにより接着させることが可能となる。もちろん、外箱７１０と真空断熱材４００の間、あるいは外箱７１０と内箱７５０の間に接着剤として硬質ウレタンフォームを充填しても良い。このとき、断熱箱体７００内に硬質ウレタンフォームが充填されない未充填部（つまり、空隙）が生じると、断熱箱体７００の断熱性能が低下してしまう。したがって、本実施の形態に係る断熱箱体７００においては、硬質ウレタンフォームを充填するために必要なある程度の所定隙間（例えば１ｍｍ程度以上、好ましく３ｍｍ程度以上）の確保が必要となるので、空間３１５内の真空断熱材４００の充填率は９０％以下が良く、好ましくは８０％以下が良い。   However, if rigid urethane foam is used as an adhesive between the inner box 750 and the vacuum heat insulating material 400, the space 315 can be filled and foamed while flowing in a two-phase state. Even when the convex portion 450, the protruding portion 910, the rail portion 755, and other parts exist, the inner box 750 and the vacuum heat insulating material 400 can be bonded to each other with urethane without any problem. Of course, rigid urethane foam may be filled as an adhesive between the outer box 710 and the vacuum heat insulating material 400 or between the outer box 710 and the inner box 750. At this time, if an unfilled portion (that is, a void) that is not filled with the hard urethane foam is generated in the heat insulation box 700, the heat insulation performance of the heat insulation box 700 is deteriorated. Therefore, in the heat insulating box 700 according to the present embodiment, it is necessary to secure a certain amount of predetermined gap (for example, about 1 mm or more, preferably about 3 mm or more) necessary for filling the hard urethane foam. The filling rate of the vacuum heat insulating material 400 is preferably 90% or less, and preferably 80% or less.

ところで、空間３１５内における真空断熱材４００の充填率を増大させれば、空間３１５内における硬質ウレタンフォームの充填率は低下する。このため、外箱７１０と内箱７５０との間のウレタンの厚さが低減し断熱箱体７００の箱体強度が低下してしまうことが懸念されるようにも思われる。しかしながら、本実施の形態に係る断熱箱体７００は、ウレタンよりも断熱性能、曲げ剛性とも優れた真空断熱材４００を使用することで、箱体強度の低下が抑制できる。また、本実施の形態では、熱伝導率が小さな真空断熱材４００によって主に断熱機能と強度を担うという技術思想によってもたらされているため、図２０に示したように真空断熱材の充填率を４０％以上にすることで硬質ウレタンの充填量が少なくなっても箱体７００の強度を向上させることができる。また、図１９に示したように真空断熱材４００の厚さを厚くする（すなわち、真空断熱材の充填率を大きくする）ことで、真空断熱材と硬質ウレタンフォームを合わせた複合断熱材の複合熱伝導率を小さくできるので、箱体７００の断熱性能も向上する。   By the way, if the filling rate of the vacuum heat insulating material 400 in the space 315 is increased, the filling rate of the rigid urethane foam in the space 315 is lowered. For this reason, it seems to be concerned that the thickness of the urethane between the outer box 710 and the inner box 750 is reduced and the box strength of the heat insulating box 700 is lowered. However, the heat insulation box 700 which concerns on this Embodiment can suppress the fall of box strength by using the vacuum heat insulating material 400 which was excellent in heat insulation performance and bending rigidity rather than urethane. Further, in this embodiment, since the heat conductivity is brought about by the technical idea that the vacuum heat insulating material 400 mainly has a heat insulating function and strength, the filling rate of the vacuum heat insulating material as shown in FIG. By setting the content to 40% or more, the strength of the box 700 can be improved even if the filling amount of the hard urethane is reduced. Further, as shown in FIG. 19, by increasing the thickness of the vacuum heat insulating material 400 (that is, increasing the filling rate of the vacuum heat insulating material), the composite heat insulating material combined with the vacuum heat insulating material and the rigid urethane foam is combined. Since the thermal conductivity can be reduced, the heat insulation performance of the box 700 is also improved.

ここで、硬質ウレタンフォームの密度を大きくして曲げ弾性率（曲げ剛性）を増大させると、硬質ウレタンフォーム自体の断熱性能は低下するが、真空断熱材４００の被覆率と充填率を所定値以上とすることで、ウレタンの断熱性能の低下の影響は小さく問題にならない。本実施の形態に係る断熱箱体７００においては、図１６に示したように硬質ウレタンフォームの密度を従来よりも大きく、例えば６０ｋｇ／ｍ３より大きくすることで、硬質ウレタンフォームの曲げ弾性率を、従来の断熱箱体に用いられていた硬質ウレタンフォームの曲げ弾性率（たとえば６〜１０ＭＰａ程度）よりも大きな１５ＭＰａ以上とすることができ、真空断熱材４００が配置されていない部分の箱体強度も向上させることが可能となる。したがって、本実施の形態に係る断熱箱体７００、冷蔵庫１、ショーケース、給湯機などの機器は、真空断熱材４００の充填率を４０％以上、真空断熱材の側背面の被覆率を７０％以上に設定することにより、硬質ウレタンフォームの充填率の低下に起因する強度低下を抑制することができ、収納物の重量による歪みに耐え切れず断熱箱体７００が変形することも抑制できる。すなわち、真空断熱材４００の充填率を大きくすることによって断熱箱体７００の強度を向上させることができ、また、優れた断熱性能が得られるので、信頼性が高く省エネルギーな真空断熱材を備えた断熱箱体、真空断熱材を備えた冷蔵庫、真空断熱材を備えたショーケース、真空断熱材を備えた給湯装置、真空断熱材を備えた機器などが得られる。 Here, when the density of the rigid urethane foam is increased to increase the flexural modulus (flexural rigidity), the heat insulation performance of the rigid urethane foam itself is lowered, but the coverage and filling rate of the vacuum heat insulating material 400 are not less than a predetermined value. By doing so, the influence of the decrease in the heat insulation performance of urethane is small and does not become a problem. In the heat insulation box 700 according to the present embodiment, the bending elastic modulus of the rigid urethane foam is increased by making the density of the rigid urethane foam larger than the conventional one, for example, greater than 60 kg / m 3 as shown in FIG. The box body strength of the portion where the vacuum heat insulating material 400 is not disposed can be 15 MPa or more larger than the bending elastic modulus (for example, about 6 to 10 MPa) of the rigid urethane foam used in the conventional heat insulation box. Can also be improved. Therefore, in the devices such as the heat insulation box 700, the refrigerator 1, the showcase, and the water heater according to the present embodiment, the filling rate of the vacuum heat insulating material 400 is 40% or more, and the coverage on the side rear surface of the vacuum heat insulating material is 70%. By setting as described above, it is possible to suppress a decrease in strength due to a decrease in the filling rate of the rigid urethane foam, and it is also possible to prevent the heat insulation box 700 from being deformed without being able to withstand the distortion due to the weight of the stored items. That is, by increasing the filling rate of the vacuum heat insulating material 400, the strength of the heat insulating box 700 can be improved, and excellent heat insulating performance can be obtained. Therefore, a highly reliable and energy saving vacuum heat insulating material is provided. A heat insulating box, a refrigerator with a vacuum heat insulating material, a showcase with a vacuum heat insulating material, a hot water supply device with a vacuum heat insulating material, an apparatus with a vacuum heat insulating material, and the like are obtained.

なお、硬質ウレタンフォームの密度調整は、例えば空間３１５内に注入する硬質ウレタンフォームの原液の量を従来よりも多く充填する（注入時間を長くしたり、あるいは注入圧力を大きくする）ことにより、密度を大きくしたり小さくしたり調整することができる。また、硬質ウレタンフォームの曲げ弾性率は、図１６で示したように密度の大きさにほぼ比例して大きくなるので、密度を大きくすれば大きくでき、曲げ弾性率が大きい方が箱体剛性が大きくなるので良いが、ウレタンの曲げ弾性率は１５０ＭＰａ以下とした方が良い。硬質ウレタンフォームは、曲げ弾性率が１５０ＭＰａよりも大きくなると、硬質ウレタンフォームの密度が大きくなりすぎてスポンジ状に発泡できずに固まってしまい、断熱性能が急激に低下するので、硬質ウレタンフォームの曲げ弾性率は１５０ＭＰａ以下にした方が、断熱性能の低下が抑制できるので良く、高性能な断熱箱体が得られる。また、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加による箱体等からのウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能低下、コストＵＰなどの問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）を１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 The density of the hard urethane foam can be adjusted by, for example, filling the space 315 with a larger amount of the hard urethane foam stock solution than before (by increasing the injection time or increasing the injection pressure). Can be adjusted to be larger or smaller. Further, the bending elastic modulus of the rigid urethane foam increases substantially in proportion to the size of the density as shown in FIG. 16, so it can be increased by increasing the density, and the higher the bending elastic modulus, the higher the box rigidity. Although it may be large, the flexural modulus of urethane should be 150 MPa or less. When the flexural modulus of rigid urethane foam is greater than 150 MPa, the density of the rigid urethane foam becomes too high and it cannot be foamed into a sponge and solidifies, resulting in a sudden decrease in heat insulation performance. If the elastic modulus is set to 150 MPa or less, a decrease in heat insulation performance can be suppressed, and a high performance heat insulation box can be obtained. Also, if the density of heat insulating material such as urethane (for example, rigid urethane foam) is too large, (1) cost increases due to an increase in the amount of urethane injected, and (2) a box due to an increase in the injection pressure of urethane. Occurrence of urethane leaks, and (3) molds for suppressing box deformation due to increased foam pressure when foaming urethane, and adhesion and adhesion between the box pressing member and the urethane and the box pressing member, etc. Problems such as deterioration of quality, performance deterioration, and cost increase occur, such as the box holding member is difficult to remove from the box (it is difficult to remove from the box), and (4) the heat insulation performance is abruptly deteriorated due to the increased density of urethane. Therefore, the density of the insulating member such as urethane (for example, rigid urethane foam) (the density after foaming in the case of the foamed insulating material) is 100 kg / m 3 or less (preferably). Or less than 90 kg / m 3 ).

本実施の形態では、断熱箱体７００を、たとえば、以下のような仕様の冷蔵庫に適用している。
（１）外箱７１０及び内箱７５０の合計板厚が２ｍｍ程度以下で、外箱７１０の板厚と内箱７５０板厚を含む断熱箱体７００の平均壁厚が２０ｍｍ程度以上４０ｍｍ程度以下の断熱箱体を使用（ここで、背面壁７３０、側壁７９０、天井壁７４０、底面壁７８０、仕切り壁２４等の板厚を含む壁厚さが２０ｍｍ以上４０ｍｍ以下程度が好ましく、また、外箱７１０と内箱７５０の板厚を除いた空間３１５の壁厚方向の平均距離（壁内厚さ）は１８ｍｍ程度〜３８ｍｍ程度）。
（２）真空断熱材４００の厚みが１０ｍｍ程度〜３０ｍｍ程度であり、真空断熱材の配設されている部分（たとえば凹部４４０あるいは第２の凹部４４１）の壁内の空間３１５における硬質ウレタンフォームの壁厚方向の平均流路幅（ウレタン流路厚さ）が１ｍｍ以上（好ましくは３ｍｍ以上）であり、また、１１ｍｍ以下（ばらつきや真空断熱材４００の表面の凹凸等を考慮すると１０ｍｍ未満が良く好ましくは６ｍｍ以下）。
（３）硬質ウレタンフォームの熱伝導率は、０．０１８Ｗ／（ｍ・Ｋ）〜０．０２６Ｗ／（ｍ・Ｋ）。
（４）真空断熱材４００の熱伝導率は、０．００１９Ｗ／（ｍ・Ｋ）〜０．００２５Ｗ／（ｍ・Ｋ）。
（５）内容積が２００Ｌ〜６００Ｌクラスで、所定の条件下での消費電力が６０Ｗ程度以下程度。 In this Embodiment, the heat insulation box 700 is applied to the refrigerator of the following specifications, for example.
(1) The total plate thickness of the outer box 710 and the inner box 750 is about 2 mm or less, and the average wall thickness of the heat insulating box 700 including the plate thickness of the outer box 710 and the inner box 750 is about 20 mm or more and about 40 mm or less. Use a heat insulating box (here, the wall thickness including the thickness of the back wall 730, the side wall 790, the ceiling wall 740, the bottom wall 780, the partition wall 24, etc. is preferably about 20 mm or more and 40 mm or less, and the outer box 710 And the average distance (in-wall thickness) in the wall thickness direction of the space 315 excluding the plate thickness of the inner box 750 is about 18 mm to 38 mm.
(2) The thickness of the vacuum heat insulating material 400 is about 10 mm to about 30 mm, and the rigid urethane foam in the space 315 in the wall of the portion where the vacuum heat insulating material is disposed (for example, the concave portion 440 or the second concave portion 441). The average channel width (urethane channel thickness) in the wall thickness direction is 1 mm or more (preferably 3 mm or more), and 11 mm or less (less than 10 mm is preferable in consideration of variations, surface irregularities of the vacuum heat insulating material 400, etc. Preferably 6 mm or less).
(3) The thermal conductivity of the rigid urethane foam is 0.018 W / (m · K) to 0.026 W / (m · K).
(4) The thermal conductivity of the vacuum heat insulating material 400 is 0.0019 W / (m · K) to 0.0025 W / (m · K).
(5) The internal volume is 200 L to 600 L class, and the power consumption under a predetermined condition is about 60 W or less.

このような冷蔵庫１における断熱性能は、真空断熱材４００の充填率と被覆率が所定の範囲内になるように設定して真空断熱材４００の大きさや厚さを選定することによって、真空断熱材４００が断熱箱体の断熱性能、断熱箱体の箱体強度に対して支配的となるので、真空断熱材４００の熱伝導率は小さい方が断熱箱体の複合熱伝導率を小さくできるので良く、０．００３０Ｗ／（ｍ・Ｋ）以下が好ましい。真空断熱材４００の熱伝導率が０．００３０Ｗ／ｍＫを超えると、壁厚低減による断熱性能への影響が大きくなり、断熱性能が悪化し、消費電力量が大きくなる。このため、本実施の形態では、真空断熱材４００の熱伝導率を０．００３０Ｗ／（ｍ・Ｋ）以下とすることにより、壁厚を薄くすることに対しての断熱性能低下の影響を抑制している。また、真空断熱材４００の熱伝導率は小さければ小さい方が良いが、熱伝導率を０．００１Ｗ／（ｍ・Ｋ）低減するためにかかるコストが大幅に増大するため、真空断熱材４００の熱伝導率は０．００１２Ｗ／（ｍ・Ｋ）以上のものを使用するようにしている。真空断熱材４００の熱伝導率は０．００１９Ｗ／（ｍ・Ｋ）以上０．００２５Ｗ／（ｍ・Ｋ）以下であれば硬質ウレタンフォームの熱伝導率よりも約１０倍小さいので、断熱箱体７００の断熱性能は従来よりも格段に良くなり、製品仕様を満足できる。したがって、真空断熱材４００は、熱伝導率が０．００１２Ｗ／（ｍ・Ｋ）以上０．００３０Ｗ／（ｍ・Ｋ）以下程度（好ましくは０．００１９Ｗ／（ｍ・Ｋ）以上０．００２５Ｗ／（ｍ・Ｋ）以下程度）のものを使用すれば良い。   The heat insulating performance in the refrigerator 1 is set so that the filling rate and the covering rate of the vacuum heat insulating material 400 are within a predetermined range, and the size and thickness of the vacuum heat insulating material 400 are selected. 400 is dominant with respect to the heat insulation performance of the heat insulation box and the box strength of the heat insulation box. Therefore, the smaller the heat conductivity of the vacuum heat insulating material 400, the smaller the composite heat conductivity of the heat insulation box. 0.0030 W / (m · K) or less is preferable. When the heat conductivity of the vacuum heat insulating material 400 exceeds 0.0030 W / mK, the influence on the heat insulating performance due to the wall thickness reduction becomes large, the heat insulating performance deteriorates, and the power consumption increases. For this reason, in this Embodiment, the heat conductivity of the vacuum heat insulating material 400 shall be 0.0030 W / (m * K) or less, and the influence of the heat insulation performance fall with respect to making wall thickness thin is suppressed. doing. Moreover, the smaller the thermal conductivity of the vacuum heat insulating material 400, the better. However, since the cost required to reduce the thermal conductivity by 0.001 W / (m · K) increases significantly, A thermal conductivity of 0.0012 W / (m · K) or more is used. If the heat conductivity of the vacuum heat insulating material 400 is 0.0019 W / (m · K) or more and 0.0025 W / (m · K) or less, it is about 10 times smaller than the heat conductivity of the rigid urethane foam. The heat insulation performance of 700 is much better than before and can satisfy the product specifications. Therefore, the vacuum heat insulating material 400 has a thermal conductivity of about 0.0012 W / (m · K) to about 0.0030 W / (m · K) (preferably 0.0019 W / (m · K) to 0.0025 W / (M · K) or less) may be used.

本発明の実施の形態に係る断熱箱体７００の一例として、壁厚さと真空断熱材４００の充填率、硬質ウレタンフォームの曲げ弾性率、断熱箱体７００の箱体変形量の関係を表１に示す。表１の項１は、従来の仕様であり、壁厚さ４０ｍｍ、真空断熱材４００の充填率が２０％、内箱７５０と真空断熱材４００の間に充填されるウレタンの曲げ弾性率が９ＭＰａのときの結果である。ここで、真空断熱材４００の曲げ弾性率は２０ＭＰａのものを使用している。表１の項１と項２より真空断熱材４００の充填率が２０％、ウレタンの曲げ弾性率９ＭＰａの場合は、断熱箱体７００の壁厚を４０ｍｍから３０ｍｍに薄くすると箱体強度が低下する。したがって、項３に示すように壁厚さを３０ｍｍまで低減させる場合には、真空断熱材４００の充填率を４０％以上まで大きくすれば、箱体変形量が項１（従来）より若干大きいが項１（従来）と同等レベルまで低下することが分かる。   As an example of the heat insulation box 700 according to the embodiment of the present invention, the relationship between the wall thickness, the filling rate of the vacuum heat insulating material 400, the bending elastic modulus of the rigid urethane foam, and the deformation amount of the box of the heat insulation box 700 is shown in Table 1. Show. Item 1 in Table 1 is a conventional specification, the wall thickness is 40 mm, the filling rate of the vacuum heat insulating material 400 is 20%, and the flexural modulus of urethane filled between the inner box 750 and the vacuum heat insulating material 400 is 9 MPa. Is the result of Here, the bending heat modulus of the vacuum heat insulating material 400 is 20 MPa. According to items 1 and 2 of Table 1, when the filling rate of the vacuum heat insulating material 400 is 20% and the bending elastic modulus of urethane is 9 MPa, the strength of the box body decreases when the wall thickness of the heat insulating box body 700 is reduced from 40 mm to 30 mm. . Therefore, when the wall thickness is reduced to 30 mm as shown in item 3, if the filling rate of the vacuum heat insulating material 400 is increased to 40% or more, the amount of deformation of the box is slightly larger than that of item 1 (conventional). It turns out that it falls to the level equivalent to the term 1 (conventional).

表１の項４に示すように、断熱箱体７００の壁厚を従来の４０ｍｍ（表１の項１）から３０ｍｍに薄くしても真空断熱材４００の充填率を４０％以上とし、かつウレタンの曲げ弾性率を１５Ｍｐａ以上（表１の項４）とすれば、箱体変形量が従来（項１）よりも小さくできるので、断熱箱体７００の箱体強度を従来品（項１）以上にすることが可能となる。すなわち、壁厚さを低減（たとえば４０ｍｍから３０ｍｍに低減）させても真空断熱材４００の充填率とウレタンの曲げ弾性率を所定値以上に設定すれば、箱体強度が低下することなく、断熱性能も向上させることができる。したがって、本実施の形態では、真空断熱材４００としては、曲げ弾性率２０ＭＰａ以上のものを使用し、真空断熱材４００の充填率を４０％以上、硬質ウレタンフォームの曲げ弾性率を１５ＭＰａ以上に設定することで、断熱箱体の壁厚さを薄く（例えば４０ｍｍから３０ｍｍに薄く）しても断熱箱体７００の強度を従来よりも向上させることが可能となる。   As shown in item 4 of Table 1, even if the wall thickness of the heat insulating box 700 is reduced from the conventional 40 mm (item 1 of Table 1) to 30 mm, the filling rate of the vacuum heat insulating material 400 is 40% or more and urethane is used. If the flexural modulus of the sheet is 15 Mpa or more (item 4 in Table 1), the amount of deformation of the box can be made smaller than that of the conventional (item 1). It becomes possible to. That is, even if the wall thickness is reduced (for example, reduced from 40 mm to 30 mm), if the filling rate of the vacuum heat insulating material 400 and the bending elastic modulus of urethane are set to a predetermined value or more, the box body strength is not lowered. Performance can also be improved. Therefore, in this embodiment, as the vacuum heat insulating material 400, a material having a bending elastic modulus of 20 MPa or more is used, the filling rate of the vacuum heat insulating material 400 is set to 40% or higher, and the bending elastic modulus of the rigid urethane foam is set to 15 MPa or higher. By doing so, even if the wall thickness of the heat insulation box is reduced (for example, from 40 mm to 30 mm), the strength of the heat insulation box 700 can be improved as compared with the conventional case.

Figure 0006195653
Figure 0006195653

また、真空断熱材４００の外郭を形成する外包材（外装フィルム）には、アルミ箔フィルムよりもアルミ蒸着フィルムを使用するようにした方が良い。真空断熱材４００の外包材を伝って発生する熱漏洩（真空断熱材４００の外包材を介して、真空断熱材４００の表面から裏面へ熱が伝導して漏洩する所謂ヒートブリッジ）を抑制するために、真空断熱材４００の外包材として、アルミ箔フィルムよりもヒートブリッジが生じにくいアルミ蒸着フィルムを外包材（外装フィル）として使用した方が良い。   Moreover, it is better to use an aluminum vapor deposition film rather than an aluminum foil film for the outer packaging material (exterior film) which forms the outline of the vacuum heat insulating material 400. In order to suppress heat leakage that occurs through the outer packaging material of the vacuum heat insulating material 400 (a so-called heat bridge in which heat is conducted and leaked from the front surface to the back surface of the vacuum heat insulating material 400 through the outer packaging material of the vacuum heat insulating material 400). Moreover, it is better to use an aluminum vapor-deposited film that is less likely to generate a heat bridge than the aluminum foil film as the outer packaging material (exterior fill) as the outer packaging material of the vacuum heat insulating material 400.

なお、本実施の形態における硬質ウレタンフォームの曲げ弾性率、熱伝導率、密度の測定は、たとえば、所定の大きさ（たとえば１００×１００×５ｍｍ以上）の硬質ウレタンフォームを切り出して測定すれば良い。真空断熱材４００の配設されている部分においては、左右側面、背面、天面、底面の５つの各面ごとに真空断熱材が配設されている部分より複数切り出し、その平均値を算出すれば良い。（１箇所しか切り出せない場合は１箇所で複数箇所測定するなどして代用すれば良い）。扉にも真空断熱材が配設されている場合には、扉についてもウレタンの密度、曲げ弾性率、熱伝導率を測定すれば良い。また、真空断熱材４００が配設されていない部分においても左右側面、背面、天面、底面の５つの各面ごとに複数切り出し、その平均値を算出すれば良い。本実施の形態では、いずれの場合も密度あるいは曲げ弾性率が大きいと推測できる場所よりも切り出して測定するようにしている。なお、冷媒配管７２５やリード線などの配線部品７２０などがある場合など硬質ウレタンフォームを所定の大きさに切り出せない場合には、中心位置に近い位置で所定の大きさの硬質ウレタンフォームが切り出せる位置にすれば良い。   Note that the measurement of the flexural modulus, thermal conductivity, and density of the rigid urethane foam in the present embodiment may be performed by cutting out a rigid urethane foam having a predetermined size (for example, 100 × 100 × 5 mm or more). . In the portion where the vacuum heat insulating material 400 is disposed, a plurality of cut portions are cut out from the portion where the vacuum heat insulating material is disposed for each of the five surfaces of the left and right side surfaces, the back surface, the top surface, and the bottom surface, and the average value is calculated. It ’s fine. (If only one place can be cut out, it may be substituted by measuring multiple places at one place). When a vacuum heat insulating material is also provided on the door, the density, bending elastic modulus, and thermal conductivity of urethane may be measured for the door. Further, even in a portion where the vacuum heat insulating material 400 is not disposed, a plurality of the surfaces may be cut out for each of the five surfaces including the left and right side surfaces, the back surface, the top surface, and the bottom surface, and the average value may be calculated. In this embodiment, in any case, measurement is performed by cutting out from a place where the density or bending elastic modulus can be estimated. If the rigid urethane foam cannot be cut to a predetermined size, such as when there is a refrigerant pipe 725 or a wiring component 720 such as a lead wire, the rigid urethane foam having a predetermined size can be cut at a position close to the center position. Just place it.

本実施の形態では、左側面、右側面、背面、天面、底面あるいは扉の６つの面ごとに真空断熱材４００が配設されている部分と配設されていない部分のウレタンの密度あるいは曲げ弾性率を測定し、ウレタンの密度あるいは曲げ弾性率が所定値以上になるようにしている。ウレタンのフリーフォーム密度、真空断熱材の厚さ、壁厚さなどを調整することで、真空断熱材４００と内箱７５０との間、あるいは真空断熱材４００と外箱７１０との間、あるいは外箱７１０と内箱７５０との間に介在するウレタンの密度、あるいは曲げ弾性率を所定値以上に設定できる。   In the present embodiment, the density or bending of urethane in the portion where the vacuum heat insulating material 400 is disposed and the portion where the vacuum heat insulating material 400 is not disposed on each of the six surfaces of the left side surface, right side surface, back surface, top surface, bottom surface or door. The elastic modulus is measured so that the density or bending elastic modulus of the urethane becomes a predetermined value or more. By adjusting the free foam density of urethane, the thickness of the vacuum heat insulating material, the wall thickness, etc., between the vacuum heat insulating material 400 and the inner box 750, or between the vacuum heat insulating material 400 and the outer box 710, or outside The density of urethane interposed between the box 710 and the inner box 750 or the bending elastic modulus can be set to a predetermined value or more.

ここで、本実施の形態では、左右側面、背面、天面、底面あるいは扉の６つの面において、各面ごとに少なくとも真空断熱材４００が配設されている部分のウレタンの密度、曲げ弾性率を所定値以上に設定するようにしており、加えて各面ごとに少なくとも真空断熱材４００が配設されていない部分のウレタンの密度、曲げ弾性率を所定値以上に設定するようにしても良い。ここで、左右側面、背面、天面、底面あるいは扉の６つの面において、各面ごとにウレタン密度、曲げ弾性率が所定値以上になるように設定すれば、真空断熱材４００が配設されていない部分においても強度が向上する。また、個別の面ごとに強度が得られるので、必要な部分だけ高強度に設定でき低コストで信頼性の高い良い断熱箱体、冷蔵庫、機器が得られる。また、左右側面、背面、天面、底面あるいは扉の６つの面の密度、あるいは曲げ弾性率の平均値が第１の所定値以上（密度６０ｋｇ／ｍ３以上、曲げ弾性率１５ＭＰａ以上）、第２の所定値以下（密度１００ｋｇ／ｍ３以下、曲げ弾性率１５０ＭＰａ以下）になるように設定するようにすれば、箱体全体での強度確保が行えるので、断熱性能が高く信頼性の高い断熱箱体、冷蔵庫、機器が得られる。 Here, in the present embodiment, at least six portions of the left and right side surfaces, the back surface, the top surface, the bottom surface, or the door, where the vacuum heat insulating material 400 is disposed on each surface, the density of urethane and the bending elastic modulus. Is set to a predetermined value or more, and in addition, the density of the urethane and the bending elastic modulus of at least a portion where the vacuum heat insulating material 400 is not provided for each surface may be set to a predetermined value or more. . Here, if the urethane density and the flexural modulus are set to a predetermined value or more on each of the six surfaces of the left and right side surfaces, the back surface, the top surface, the bottom surface or the door, the vacuum heat insulating material 400 is disposed. The strength is improved even in the part that is not. Moreover, since strength can be obtained for each individual surface, only necessary portions can be set to high strength, and a low-cost and highly reliable heat insulation box, refrigerator, and equipment can be obtained. Further, the density of the six surfaces of the left and right side surfaces, the back surface, the top surface, the bottom surface, or the door, or the average value of the flexural modulus is not less than a first predetermined value (density is not less than 60 kg / m 3 and the flexural modulus is not less than 15 MPa). 2 or less (density 100 kg / m 3 or less, flexural modulus 150 MPa or less), since the strength of the entire box can be secured, heat insulation performance is high and reliability is high. A box, refrigerator, and equipment are obtained.

また、真空断熱材４００の被覆率、充填率についても、左右側面、背面、天面、底面あるいは扉の６つの面において、各面ごとあるいは複数の面を合わせた被覆率、充填率が所定値以上になるように設定すれば、個別の面ごとに強度、断熱性能が得られるので、必要な部分だけ高強度に設定でき低コストで高断熱で信頼性の高い断熱箱体、冷蔵庫、機器が得られる。また、左右側面、背面、天面、底面あるいは扉の６つの面全体が所定値以上になるように設定するようにすれば、箱体全体での強度確保、断熱性能の向上が行えるので、断熱性能が高く信頼性の高い断熱箱体、冷蔵庫、機器が得られる。   In addition, regarding the coverage and filling rate of the vacuum heat insulating material 400, the coverage and filling rate of each surface or a plurality of surfaces on the left and right side surfaces, the back surface, the top surface, the bottom surface, and the door are the predetermined values. If it is set as described above, strength and heat insulation performance can be obtained for each individual surface, so only the necessary parts can be set to high strength, and low cost, high heat insulation and highly reliable heat insulation boxes, refrigerators, and equipment can be installed. can get. In addition, the strength of the entire box body and the improvement of the heat insulation performance can be achieved by setting the left and right side surfaces, the back surface, the top surface, the bottom surface, or the door so that the entire six surfaces are greater than or equal to a predetermined value. High performance and reliable heat insulation box, refrigerator and equipment can be obtained.

以上、本実施の形態に係る断熱箱体７００においては、真空断熱材４００の被覆率を所定値（６０％）より大きく（真空断熱材４００の側背面の被覆率を７０％以上）している。また、真空断熱材４００の充填率も所定値（４０％）以上にして硬質ウレタンフォームの充填量を少なくしているので、断熱箱体の断熱性能と箱体強度を確保した上で断熱箱体７００の壁厚を従来よりも薄くすることができる。したがって、断熱性能が向上するため、省エネルギーであり、しかも壁厚が薄く出来る分だけ従来よりも貯蔵室内の内容積を大きくできるので、内容積効率の優れた断熱箱体７００、冷蔵庫１、ショーケース、機器を提供することができる。すなわち、本発明の実施の形態によれば、断熱箱体７００あるいは冷蔵庫１あるいはショーケースなどの機器の外形サイズを変更せずに内容積（たとえば貯蔵室２〜６の内容積）を従来よりも大きくできるので、断熱箱体７００あるいは冷蔵庫１の内部に貯蔵できる収納物を従来よりも増やすことができる。よって、ユーザにとって使い勝手のよく、省エネルギーな断熱箱体７００、冷蔵庫１、ショーケースなどの機器が得られる。逆に内容積（たとえば貯蔵室２〜６の内容積）を従来と同等にすれば、外形サイズを小さくできるので、省エネルギーでコンパクトな断熱箱体７００、冷蔵庫１、ショーケース、給湯装置などの機器が得られる。   As described above, in the heat insulation box 700 according to the present embodiment, the coverage of the vacuum heat insulating material 400 is larger than a predetermined value (60%) (the coverage on the side rear surface of the vacuum heat insulating material 400 is 70% or more). . Moreover, since the filling rate of the vacuum heat insulating material 400 is set to a predetermined value (40%) or more to reduce the filling amount of the hard urethane foam, the heat insulating box body is secured after ensuring the heat insulating performance and the box strength of the heat insulating box body. The wall thickness of 700 can be made thinner than before. Therefore, since the heat insulation performance is improved, the internal volume in the storage chamber can be increased as much as possible by the energy saving and the wall thickness can be reduced, so that the heat insulation box 700, the refrigerator 1, and the showcase having excellent internal volume efficiency. Can provide equipment. That is, according to the embodiment of the present invention, the inner volume (for example, the inner volume of the storage chambers 2 to 6) is made larger than before without changing the outer size of the equipment such as the heat insulating box 700, the refrigerator 1, or the showcase. Since it can enlarge, the storage thing which can be stored in the inside of the heat insulation box 700 or the refrigerator 1 can be increased more than before. Therefore, it is easy to use for the user, and energy-saving equipment such as the heat insulating box 700, the refrigerator 1, and the showcase can be obtained. On the contrary, if the internal volume (for example, the internal volume of the storage chambers 2 to 6) is made equal to the conventional one, the outer size can be reduced, so that energy-saving and compact equipment such as the heat insulating box 700, the refrigerator 1, the showcase, and the water heater Is obtained.

なお、本実施の形態で示した断熱箱体７００や冷蔵庫１の形態や形状はあくまでも一例である。例えば、断熱箱体７００の貯蔵品収納空間を３枚の横仕切り板で区画して上下方向に４つの収納空間（貯蔵室）を形成しても良い。また、例えば、断熱箱体７００の貯蔵品収納空間を３枚の横仕切り板で区画してさらに縦仕切り板によって区画することで５つの収納空間（貯蔵室）を形成してもよい。仕切り板の数を増やすことにより、断熱箱体７００の強度をより向上させることができる。すなわち、仕切り板の数を増やして収納室や貯蔵室の数を多くするほど、仕切り板による箱体強度向上の効果が得られるので、真空断熱材４００で覆っている部分の硬質ウレタンフォーム（真空断熱材４００と内箱７５０との間の空間３１５）の平均厚さを薄くしても（例えば１１ｍｍ以下、好ましくは１０ｍｍ未満、より好ましくは６ｍｍ以下）、十分な箱体強度を確保することができる。このため、断熱箱体７００の外形サイズを変更せずに貯蔵室の内容積をさらに大きくでき、断熱箱体７００の内部に貯蔵できる収納物をさらに増やすことが可能となる。   In addition, the form and shape of the heat insulation box 700 and the refrigerator 1 which were shown by this Embodiment are an example to the last. For example, the storage item storage space of the heat insulating box 700 may be partitioned by three horizontal partition plates to form four storage spaces (storage chambers) in the vertical direction. Further, for example, five storage spaces (storage chambers) may be formed by partitioning the storage item storage space of the heat insulation box 700 by three horizontal partition plates and further partitioning by the vertical partition plates. By increasing the number of partition plates, the strength of the heat insulating box 700 can be further improved. That is, as the number of partition plates is increased to increase the number of storage rooms and storage chambers, the effect of improving the box strength by the partition plates can be obtained. Even if the average thickness of the space 315 between the heat insulating material 400 and the inner box 750 is reduced (for example, 11 mm or less, preferably less than 10 mm, more preferably 6 mm or less), sufficient box strength can be secured. it can. For this reason, it is possible to further increase the internal volume of the storage chamber without changing the outer size of the heat insulation box 700, and to further increase the amount of stored items that can be stored inside the heat insulation box 700.

また、本実施の形態においては、仕切壁２４の内部構造については、断熱箱体７００と同様の構成にしてもよい。すなわち、仕切壁２４の内部空間に真空断熱材４００を配置して硬質ウレタンフォームを充填するが、硬質ウレタンフォームは接着剤として使用できれば良いので薄くても良く、例えば１１ｍｍ程度以下（好ましくはばらつきや真空断熱材の表面の凹凸等を考慮すると１０ｍｍ未満）が良く、より好ましくは６ｍｍ程度以下が良い。ここで、仕切壁２４内には、断熱箱体７００のように配管７２５や配線７２０等が配置されない場合が多いので、そのような場合には、仕切壁２４に対しての真空断熱材４００の充填率は断熱箱体７００と同等の４０％以上９０％以下に設定しても良いが、仕切壁２４に関しては、仕切壁２４の大きさ（仕切壁２４内の空間）のほぼ全面に真空断熱材４００を配置することが可能となるので、真空断熱材４００の充填率を４０％以上９５％以下程度まで充填率を高めることが可能である。また、硬質ウレタンフォームの曲げ弾性率は１５ＭＰａ以上、密度は６０ｋｇ／ｍ３よりも大きくすればよい。このように仕切壁２４内にも真空断熱材４００を配置して充填率を所定範囲に設定することにより、断熱箱体７００の断熱性能をより向上させることができる。 In the present embodiment, the internal structure of the partition wall 24 may have the same configuration as that of the heat insulating box 700. That is, the vacuum heat insulating material 400 is disposed in the internal space of the partition wall 24 and filled with hard urethane foam. However, the hard urethane foam may be thin as long as it can be used as an adhesive. Taking into account the unevenness of the surface of the vacuum heat insulating material, the thickness is preferably less than 10 mm, and more preferably about 6 mm or less. Here, since there are many cases where piping 725, wiring 720, and the like are not arranged in the partition wall 24 unlike the heat insulation box 700, in such a case, the vacuum heat insulating material 400 with respect to the partition wall 24 is not provided. The filling rate may be set to 40% or more and 90% or less equivalent to that of the heat insulating box 700. However, with respect to the partition wall 24, vacuum insulation is provided on almost the entire size of the partition wall 24 (space in the partition wall 24). Since the material 400 can be disposed, the filling rate of the vacuum heat insulating material 400 can be increased to about 40% to 95%. Further, the rigid elastic foam may have a flexural modulus of 15 MPa or more and a density greater than 60 kg / m 3 . Thus, the heat insulation performance of the heat insulation box 700 can be further improved by disposing the vacuum heat insulating material 400 also in the partition wall 24 and setting the filling rate within a predetermined range.

本実施の形態では、真空断熱材を備えた断熱箱体あるいは断熱壁の場合、組立性を考慮して真空断熱材４００を外箱７１０にホットメルトや両面テープなどの発泡ウレタンとは異なる第２の接着剤で直接貼り付け、真空断熱材４００と内箱７５０との間には接着を主目的とする接着剤として硬質ウレタンフォームを充填するようにしているが、真空断熱材４００を外箱７１０と内箱７５０との間に形成される空間３１５内にＥＰＳなどの樹脂によるスペーサなどを配置して真空断熱材４００を内箱７５０と外箱７１０との間に浮かせて配置するようにして、真空断熱材４００と外箱７１０との間、及び、真空断熱材４００と内箱７５０との間に硬質ウレタンフォームを充填するようにしても良い。また、真空断熱材４００を内箱７５０にホットメルトや両面テープなどの第２の接着剤で直接貼り付けて真空断熱材４００と外箱７１０との間にウレタンフォームを充填するようにしても良い。   In the present embodiment, in the case of a heat insulating box body or a heat insulating wall provided with a vacuum heat insulating material, the vacuum heat insulating material 400 is attached to the outer box 710 in consideration of assembling characteristics. A hard urethane foam is filled as an adhesive mainly for adhesion between the vacuum heat insulating material 400 and the inner box 750, but the vacuum heat insulating material 400 is attached to the outer box 710. A spacer made of resin such as EPS is arranged in a space 315 formed between the inner box 750 and the vacuum heat insulating material 400 so as to float between the inner box 750 and the outer box 710. Hard urethane foam may be filled between the vacuum heat insulating material 400 and the outer box 710 and between the vacuum heat insulating material 400 and the inner box 750. Alternatively, the vacuum heat insulating material 400 may be directly attached to the inner box 750 with a second adhesive such as hot melt or double-sided tape, and urethane foam may be filled between the vacuum heat insulating material 400 and the outer box 710. .

ここで、真空断熱材４００を外箱７１０と内箱７５０との間にスペーサなどで浮かせて配置する場合には、外箱７１０の内面側（外箱７１０と真空断熱材４００との間の空間）にスペーサを設けてスペーサ空間に冷媒配管７２５（たとえば凝縮配管）を設けるようにすれば良い。冷媒配管７２５は、機械室１Ａ内に配置されている圧縮機１２から吐出された高温高圧の冷媒が流れる凝縮配管でもあり、冷媒配管７２５の管壁及び外箱７１０を介して熱伝導などによって、配管７２５内を流れる冷媒を配管７２５の周囲の空気によって冷却して冷媒を凝縮させることで凝縮配管として使用される。また、本実施の形態に係る断熱箱体７００は、冷媒配管７２５と重ならない位置（対向しない位置）の外箱７１０の内壁に、冷媒配管７２５の直径以上の厚みを有する樹脂製のスペーサを設けて、真空断熱材４００をスペーサに貼り付けるようにすれば、冷媒配管７２５を外箱７１０に這わせてから真空断熱材４００が貼り付けられたスペーサを冷媒配管７２５を覆うように外箱７１０に直接両面テープなどで貼り付けることができ製造が容易になる。本実施の形態に係る断熱箱体７００は、真空断熱材４００が内箱７５０と所定の間隔を介して配置され、また真空断熱材４００が外箱７１０と所定の間隔を介して配置されているので、真空断熱材４００が硬質ウレタンフォーム内に埋設された構成となり、断熱性能が向上する。   Here, when the vacuum heat insulating material 400 is disposed between the outer box 710 and the inner box 750 with a spacer or the like, the inner surface side of the outer box 710 (the space between the outer box 710 and the vacuum heat insulating material 400). ) To provide a refrigerant pipe 725 (for example, a condensation pipe) in the spacer space. The refrigerant pipe 725 is also a condensation pipe through which the high-temperature and high-pressure refrigerant discharged from the compressor 12 disposed in the machine room 1A flows, and heat conduction or the like through the wall of the refrigerant pipe 725 and the outer box 710, The refrigerant flowing in the pipe 725 is cooled by the air around the pipe 725 to condense the refrigerant and used as a condensation pipe. Further, in the heat insulation box 700 according to the present embodiment, a resin spacer having a thickness equal to or larger than the diameter of the refrigerant pipe 725 is provided on the inner wall of the outer box 710 at a position that does not overlap the refrigerant pipe 725 (a position that does not face the refrigerant pipe 725). If the vacuum heat insulating material 400 is attached to the spacer, the spacer with the vacuum heat insulating material 400 attached to the outer box 710 is covered with the refrigerant pipe 725 after the refrigerant pipe 725 is put over the outer box 710. It can be applied directly with double-sided tape, etc., making it easy to manufacture. In the heat insulating box 700 according to the present embodiment, the vacuum heat insulating material 400 is disposed with a predetermined distance from the inner box 750, and the vacuum heat insulating material 400 is disposed with a predetermined distance from the outer box 710. Therefore, it becomes the structure by which the vacuum heat insulating material 400 was embed | buried in hard urethane foam, and a heat insulation performance improves.

以上のように、本実施の形態では、断熱箱体７００は、外箱７１０と内箱７５０との間の空間３１５内において、硬質ウレタンフォーム内に真空断熱材４００を埋設させるようにして発泡充填しても良く、この場合には外箱７１０と真空断熱材４００との間に凝縮配管７２５が存在する場合が多いが、ＥＰＳなどの樹脂製のスペーサなどで真空断熱材４００を外箱７１０と所定の距離を持たせる構成とすることで真空断熱材４００を配設することができる。   As described above, in this embodiment, the heat insulating box 700 is foam-filled so that the vacuum heat insulating material 400 is embedded in the hard urethane foam in the space 315 between the outer box 710 and the inner box 750. In this case, the condensation pipe 725 often exists between the outer box 710 and the vacuum heat insulating material 400. However, the vacuum heat insulating material 400 is connected to the outer box 710 with a resin spacer such as EPS. The vacuum heat insulating material 400 can be arrange | positioned by setting it as the structure which gives a predetermined distance.

また、真空断熱材４００は、高温になるほど周囲のガスを吸収しやすく内部の真空度が低下し熱伝導率が悪化することがある。夏場など外気温度が高い場合には外箱７１０の周囲温度（周囲の空気温度）が高くなり外箱７１０自体の温度も高くなる可能性があり、また、凝縮配管として使用される配管７２５も高温になるので、真空断熱材４００の信頼性確保の観点から考えると真空断熱材４００を外箱７１０や冷媒配管（凝縮配管）７２５から遠ざけることが望ましい。真空断熱材４００を外箱７１０や冷媒配管（凝縮配管）７２５から遠ざけることで真空断熱材４００の温度上昇による劣化を抑制することができるので、真空断熱材４００をスペーサなどで外箱７１０の壁面あるいは冷媒配管７２５から遠ざけるように浮かせる構造とすれば、断熱性能の低下を抑制でき長期的に信頼性の高い断熱箱体７００、冷蔵庫１を提供することが可能となる。   In addition, the vacuum heat insulating material 400 is likely to absorb ambient gas as the temperature increases, and the degree of vacuum inside may decrease and the thermal conductivity may deteriorate. When the outside air temperature is high, such as in summer, the ambient temperature of the outer box 710 (ambient air temperature) may increase, and the temperature of the outer box 710 itself may also increase, and the pipe 725 used as the condensation pipe is also hot. Therefore, from the viewpoint of ensuring the reliability of the vacuum heat insulating material 400, it is desirable to keep the vacuum heat insulating material 400 away from the outer box 710 and the refrigerant pipe (condensation pipe) 725. By keeping the vacuum heat insulating material 400 away from the outer box 710 and the refrigerant pipe (condensation pipe) 725, deterioration due to the temperature rise of the vacuum heat insulating material 400 can be suppressed. Or if it is made the structure which floats away from the refrigerant | coolant piping 725, the fall of heat insulation performance can be suppressed and it becomes possible to provide the heat insulation box 700 and the refrigerator 1 with long-term reliability.

また、真空断熱材４００は周囲のガス（空気など）を吸収することで内部の真空度が下がり、熱伝導率が悪化することがあるが、ＥＰＳなど樹脂製のスペースを外箱７１０に貼り付けるなどして硬質ウレタンフォーム内に真空断熱材４００を埋設させる構成にすれば、真空断熱材４００の周囲のガス（空気など）の存在量を減らすことができるので、真空断熱材４００が周囲のガス（空気など）を吸収することが抑制でき、真空度の低下による真空断熱材４００の劣化を抑制でき、長期的に高断熱性能を維持でき、しかも信頼性の高い断熱箱体７００、冷蔵庫１、機器などを提供することが可能となる。   Further, the vacuum heat insulating material 400 may reduce the internal vacuum degree by absorbing surrounding gas (air or the like) and may deteriorate the thermal conductivity, but a resin space such as EPS is attached to the outer box 710. For example, if the vacuum heat insulating material 400 is embedded in the hard urethane foam, the amount of gas (such as air) around the vacuum heat insulating material 400 can be reduced. (Such as air) can be suppressed, deterioration of the vacuum heat insulating material 400 due to a decrease in the degree of vacuum can be suppressed, high heat insulating performance can be maintained over the long term, and the highly reliable heat insulating box 700, refrigerator 1, Equipment and the like can be provided.

特に、本実施の形態に係る断熱箱体７００においては、硬質ウレタンフォームの密度が従来の断熱箱体に用いられていた硬質ウレタンフォームよりも密度の高いもの（密度が６０Ｋｇ／ｍ３より大きなもの）を使用するので、密度が大きい分だけ硬質ウレタンフォーム内の気泡が少なくなり、気泡内のガスの量（空気量）を減らすことが可能である。したがって、真空断熱材４００の周囲を硬質ウレタンフォームで埋設あるいは覆うように充填あるいは配設すれば、真空断熱材４００の周囲のガス（空気など）の存在量を減らすことができるので、真空断熱材４００の真空度の低下を抑制できる（ウレタンの密度が大きくなればなるほど、ウレタン内の空隙数が減り、ウレタン内の空気量が減る）。特にウレタンの厚さが薄い場合（たとえば１１ｍｍ以下の場合）には、真空断熱材４００はウレタン周囲などからの空気などのガスの進入を受けやすいので、ウレタンの密度を大きくして真空断熱材４００の周囲のガス量を減らすことによる真空断熱材４００の劣化抑制に対する効果が大きい。したがって、真空断熱材４００の劣化をより抑制でき、長期的に信頼性の高い断熱箱体７００、冷蔵庫１、機器を提供することが可能となる。 In particular, in the heat insulation box 700 according to the present embodiment, the density of the hard urethane foam is higher than that of the hard urethane foam used in the conventional heat insulation box (the density is larger than 60 kg / m 3). ) Is used, the number of bubbles in the rigid urethane foam is reduced by the amount of density, and the amount of gas (air amount) in the bubbles can be reduced. Therefore, if the surroundings of the vacuum heat insulating material 400 are filled or arranged so as to be buried or covered with the hard urethane foam, the amount of gas (air etc.) around the vacuum heat insulating material 400 can be reduced. A decrease in the degree of vacuum of 400 can be suppressed (the higher the urethane density, the smaller the number of voids in the urethane and the less the amount of air in the urethane). In particular, when the thickness of the urethane is thin (for example, when the thickness is 11 mm or less), the vacuum heat insulating material 400 is susceptible to the ingress of gas such as air from around the urethane. The effect of suppressing the deterioration of the vacuum heat insulating material 400 by reducing the amount of gas around is large. Therefore, the deterioration of the vacuum heat insulating material 400 can be further suppressed, and it is possible to provide the heat insulating box 700, the refrigerator 1, and the equipment that are highly reliable in the long term.

なお、本実施の形態では凝縮配管７２５を空間３１５内に配置した断熱箱体７００を例に説明したが、凝縮配管７２５が空間３１５内に設けられていない断熱箱体７００においても、硬質ウレタンフォーム内に真空断熱材４００を埋設させても勿論よい。真空断熱材４００の周囲のガスの存在量を減らすことができるので、真空断熱材４００の劣化を抑制でき、長期的に信頼性の高い断熱箱体７００を提供することが可能となる。   In the present embodiment, the heat insulation box 700 in which the condensation pipe 725 is disposed in the space 315 has been described as an example. However, even in the heat insulation box 700 in which the condensation pipe 725 is not provided in the space 315, the rigid urethane foam is used. Of course, the vacuum heat insulating material 400 may be embedded therein. Since the abundance of gas around the vacuum heat insulating material 400 can be reduced, it is possible to suppress the deterioration of the vacuum heat insulating material 400 and to provide a highly reliable heat insulating box 700 in the long term.

ここで、内箱７５０にレール部（引き出し式貯蔵室の引き出し用のレールあるいは凹部など）７５５が形成されていない構成の断熱箱体７００、冷蔵庫１の場合など、内箱７５０が真空断熱材４００を直接、接着剤や両面テープなどで貼り付けやすい形状となっている場合には、真空断熱材４００の全てまたは一部を内箱７５０側に配設してもよい。   Here, the inner box 750 is the vacuum heat insulating material 400, such as in the case of the heat insulating box 700 or the refrigerator 1 in which the inner box 750 is not formed with a rail portion (such as a pull-out storage chamber drawer rail or recess) 755. May be directly or directly attached with an adhesive or double-sided tape, the vacuum heat insulating material 400 may be entirely or partially disposed on the inner box 750 side.

ここで、本実施の形態のように真空断熱材４００を内箱７５０側にホットメルトや両面テープなどで直接貼り付ける構成の断熱箱体７００の場合には、より少ない量の真空断熱材４００で、省エネルギーで、かつ従来よりも貯蔵室の内容積効率の優れた断熱箱体７００、冷蔵庫１を提供することができる。すなわち、略直方体状あるいは円筒状の断熱箱体７００の場合、内箱７５０の表面積よりも外箱７１０の表面積の方が大きいため、真空断熱材４００を貼り付ける場合、内箱７５０の表面に張った方が外箱７１０の表面に張るよりも小さくて済むので、低コストで断熱性能の良い断熱箱体、冷蔵庫、ショーケース、給湯機、機器が得られる。また、たとえば、同じ大きさの真空断熱材４００を貼り付ける場合には、直方体状の断熱箱体７００の角部（たとえば断熱箱体７００の背面と側面との接続部である角部あるいは天面と側面の角部あるいは天面と背面の角部等）において、角部における隣り合う壁面の真空断熱材４００間の隙間（たとえば天面の真空断熱材４００と隣り合う側面の真空断熱材４００との間の隙間あるいは距離）が、真空断熱材４００を外箱７１０側に配設した場合は、真空断熱材４００を内箱７５０側に配設した場合と比較して大きくなってしまう。すなわち、真空断熱材４００を内箱７５０に配設することにより、同じ大きさの真空断熱材４００を外箱７１０に配設した場合と比べ、隣り合う真空断熱材４００同士の間に形成される隙間を小さくでき、隙間が小さくなる分だけ熱漏洩による熱ロスが小さくなり、断熱効率の良い断熱箱体７００、冷蔵庫１、給湯機、ショーケース、機器を提供することができる。   Here, in the case of the heat insulation box 700 having a configuration in which the vacuum heat insulating material 400 is directly attached to the inner box 750 with hot melt or double-sided tape as in the present embodiment, a smaller amount of the vacuum heat insulating material 400 is used. Thus, it is possible to provide the heat insulating box 700 and the refrigerator 1 which are energy-saving and have an excellent internal volume efficiency of the storage room as compared with the conventional case. That is, in the case of the heat insulation box 700 having a substantially rectangular parallelepiped shape or a cylindrical shape, the surface area of the outer box 710 is larger than the surface area of the inner box 750. Therefore, when the vacuum heat insulating material 400 is pasted, the surface of the inner box 750 is stretched. Therefore, a heat insulating box, a refrigerator, a showcase, a water heater, and a device with good heat insulating performance can be obtained at a low cost. Further, for example, when the vacuum insulating material 400 having the same size is attached, a corner of the rectangular parallelepiped heat insulating box 700 (for example, a corner or a top surface which is a connecting portion between the back surface and the side surface of the heat insulating box 700) Between the vacuum heat insulating material 400 on the adjacent wall surface at the corner (for example, the vacuum heat insulating material 400 on the side surface adjacent to the vacuum heat insulating material 400 on the top surface) When the vacuum heat insulating material 400 is disposed on the outer box 710 side, the gap or distance between the two is larger than that when the vacuum heat insulating material 400 is disposed on the inner box 750 side. That is, by disposing the vacuum heat insulating material 400 in the inner box 750, the vacuum heat insulating material 400 of the same size is formed between the adjacent vacuum heat insulating materials 400 as compared with the case where the vacuum heat insulating material 400 is disposed in the outer box 710. Since the gap can be reduced and the heat loss due to heat leakage is reduced by the amount of the gap, the heat insulation box 700, the refrigerator 1, the water heater, the showcase, and the equipment with good heat insulation efficiency can be provided.

また、本実施の形態に係る断熱箱体７００は、内部に仕切壁２４などで区画形成された複数の貯蔵室２、３、４、５、６の開口部を開閉するためのヒンジ式あるいは引き出し式の開閉扉を備えている。この扉は、例えば金属からなる外郭部材（外板）と、例えば樹脂からなる内側部材（内板）と、を備えている。そして、外郭部材と内側部材との間に形成される扉内部空間に、硬質ウレタンフォームと真空断熱材４００が配設（充填）されている。扉も本実施の形態で説明した断熱箱体に対する真空断熱材の充填率を所定範囲に設定し、また真空断熱材４００で断熱機能のほとんどを持たせるという技術思想に基づいて形成されたものであり、扉内部空間の真空断熱材４００の充填率を４０％〜９０％、被覆率を７０％以上にしている。   Further, the heat insulation box 700 according to the present embodiment is a hinge type or drawer for opening and closing the openings of the plurality of storage chambers 2, 3, 4, 5, 6 that are partitioned by the partition wall 24 or the like. It has an open / close door. The door includes an outer member (outer plate) made of metal, for example, and an inner member (inner plate) made of resin, for example. And the hard urethane foam and the vacuum heat insulating material 400 are arrange | positioned (filled) in the door interior space formed between an outer shell member and an inner side member. The door is also formed based on the technical idea that the vacuum insulating material filling rate for the heat insulating box described in the present embodiment is set within a predetermined range, and the vacuum heat insulating material 400 has most of the heat insulating function. Yes, the filling rate of the vacuum heat insulating material 400 in the door interior space is 40% to 90%, and the coverage is 70% or more.

このような開閉扉の製造にあたっては、真空断熱材４００をあらかじめ外郭部材に第２の接着剤などで接着固定し、液体状の硬質ウレタンフォームの原料を真空断熱材と内側部材の間の空間、外側部材と内側部材の間の空間に注入して外郭部材、真空断熱材４００、内側部材を一体に形成できるように発泡させることにより、扉内部空間内に発泡断熱材である硬質ウレタンフォームを充填することができる。この場合も、硬質ウレタンフォームの厚さは、接着剤としての強度を有すれば良いので、１ｍｍ以上好ましくは３ｍｍ以上がよく、また１１ｍｍ以下（好ましくは１０ｍｍより小さく、より好ましくは６ｍｍ以下）であれば良い。   In manufacturing such an open / close door, the vacuum heat insulating material 400 is bonded and fixed to the outer member in advance with a second adhesive or the like, and the liquid rigid urethane foam raw material is a space between the vacuum heat insulating material and the inner member, Filling the space between the outer member and the inner member and foaming so that the outer member, the vacuum heat insulating material 400, and the inner member can be integrally formed, the inside space of the door is filled with rigid urethane foam that is a foam heat insulating material can do. Also in this case, the thickness of the rigid urethane foam may be 1 mm or more, preferably 3 mm or more, and preferably 11 mm or less (preferably less than 10 mm, more preferably 6 mm or less), as long as it has strength as an adhesive. I need it.

なお、開閉扉には、貯蔵室２、３、４、５、６には、収納箱（収納ケース５２０）を支持するためのフレームあるいは、扉ポケットあるいは、棚８０等が取り付けられる場合があり、フレームの固定ネジ、扉ポケットの固定部材、棚８０の取り付け部材などを開閉扉の内側（庫内側）にネジなどの締結部材や固定部材や保持部材で締結あるいは保持することが必要になる場合がある。このような場合には、締結部材や固定部材や保持部材が扉内部空間に突出する場合があり、真空断熱材４００に接触すると真空断熱材の外包材を傷つけてしまう恐れがあるので、開閉扉の内側には真空断熱材４００を傷つけない厚さだけウレタンフォームを配設あるいは充填した方が好ましい。但し、開閉扉の貯蔵室内側（内板側）に取り付ける取付部品（たとえば締結部材や固定部材や保持部材など）が特に必要い場合には、内板に真空断熱材４００を貼り付けても良い。なお、取付部品を避けて真空断熱材を設ける場合には、内板に真空断熱材を貼り付けても良い。   In addition, a frame for supporting a storage box (storage case 520), a door pocket, a shelf 80, or the like may be attached to the opening and closing doors in the storage chambers 2, 3, 4, 5, and 6. It may be necessary to fasten or hold a frame fixing screw, a door pocket fixing member, a shelf 80 mounting member, or the like, with a fastening member such as a screw, a fixing member, or a holding member inside (opening the inside of the door) the door. is there. In such a case, the fastening member, the fixing member, or the holding member may protrude into the interior space of the door, and there is a risk of damaging the outer packaging material of the vacuum heat insulating material when it comes into contact with the vacuum heat insulating material 400. It is preferable that urethane foam is disposed or filled in such a thickness that does not damage the vacuum heat insulating material 400. However, when a mounting part (for example, a fastening member, a fixing member, a holding member, or the like) to be attached to the storage chamber side (inner plate side) of the door is particularly necessary, the vacuum heat insulating material 400 may be attached to the inner plate. . In addition, when providing a vacuum heat insulating material avoiding an attachment component, you may affix a vacuum heat insulating material to an inner board.

また、外郭部材（外板）と内側部材（内板）とを有し、外郭部材と内側部材との間に形成される扉内部空間に真空断熱材４００が配設され、外郭部材あるいは内側部材と真空断熱材４００との間に発泡断熱材である硬質ウレタンフォームが充填される場合には、発泡断熱材の密度を６０ｋｇ／ｍ３よりも大きくすれば、収納箱（収納ケース５２０）を支持するためのフレームを固定するための固定部材であるネジなどの保持強度または固定強度が向上するので、ケース５２０に重量物を収納しても扉が変形しにくくなり、安定してケース５２０の出し入れが可能となり、信頼性の高い冷蔵庫や機器が得られる。また、ハンドルなどの別部材を固定するための固定部材であるネジなどの保持強度または固定強度が向上するので、別部材であるハンドルなどの扉取り付け部材を扉に取り付ける場合に、扉取り付け部材の扉への取り付け強度が向上するので、扉が変形しにくくなり、安定して扉の開閉が可能となり、信頼性の高い冷蔵庫や機器が得られる。また、外郭部材あるいは内側部材と真空断熱材４００との間に発泡断熱材である硬質ウレタンフォームを６０ｋｇ／ｍ３よりも大きくすれば、発泡断熱材の曲げ弾性率が向上し、扉の強度も向上する。 Further, it has an outer member (outer plate) and an inner member (inner plate), and a vacuum heat insulating material 400 is disposed in a door inner space formed between the outer member and the inner member. When the rigid urethane foam, which is a foam insulation material, is filled between the vacuum insulation material 400 and the vacuum insulation material 400, the storage box (storage case 520) is supported if the density of the foam insulation material is made larger than 60 kg / m 3. Since the holding strength or fixing strength of a screw or the like as a fixing member for fixing the frame for fixing is improved, the door is not easily deformed even when a heavy object is stored in the case 520, and the case 520 is stably put in and out. And a highly reliable refrigerator and equipment can be obtained. Further, since the holding strength or fixing strength of a screw or the like that is a fixing member for fixing another member such as a handle is improved, when attaching a door mounting member such as a handle or another member to the door, the door mounting member Since the strength of attachment to the door is improved, the door is not easily deformed, the door can be opened and closed stably, and a highly reliable refrigerator and equipment can be obtained. If the rigid urethane foam, which is a foam insulation material, is made larger than 60 kg / m 3 between the outer member or the inner member and the vacuum insulation material 400, the flexural modulus of the foam insulation material is improved and the strength of the door is also increased. improves.

ここで、真空断熱材４００は、全ての開閉扉または一部の開閉扉に配設してもよい。例えば、外気と断熱箱体７００内（たとえば、貯蔵室内）の温度差が比較的小さい場合（たとえば冷蔵室２や野菜室５など冷蔵温度帯の貯蔵室）には、真空断熱材４００を開閉扉に配設しても断熱性能改善の効果が小さい。このような場合、真空断熱材４００を開閉扉に配設しなくても十分な断熱性能を確保できる。真空断熱材４００は、外気と断熱箱体７００内（たとえば、貯蔵室内）の温度差が比較的大きな場合（たとえば製氷室３や切替室４や冷凍室６などの冷凍温度帯の貯蔵室）には、真空断熱材４００を開閉扉に配設すると断熱性能改善の効果が大きい。したがって、外気と断熱箱体７００内（たとえば、貯蔵室内）の温度差が比較的大きな冷凍温度帯の貯蔵室の場合には、真空断熱材４００を開閉扉に配設することで十分な断熱性能を確保できる。
また、扉外板にガラス面材を使用しても良く、その場合には、枠部と庫内側面部とを有し前面側が開口した樹脂製の内側部材の枠部の前面側（庫内側面部とは反対側）の開口部に外板の代わりにガラス面材を両面テープなどで貼り付けて扉内部空間を形成し、この扉内部空間に硬質ウレタンフォームと真空断熱材４００を配設（充填）すれば良い。また、真空断熱材４００は、内側部材の庫内側面部に両面テープなどの第２の接着剤で接着された状態で扉内部空間に介在部材である接着剤（たとえば硬質ウレタンフォーム）が充填あるいは塗布あるいは封入される。ここで、介在部材である接着剤（たとえば硬質ウレタンフォーム）の密度を６０ｋｇ／ｍ３よりも大きくすることで、介在部材である硬質ウレタンフォームが密に形成され、曲げ弾性率が大きくなるため、ガラス面材を使用した場合でもガラス面材の保持あるいは接着強度が向上し、また、扉内部空間の介在部材である硬質ウレタンフォームの強度（剛性）が向上するので、扉の強度（剛性）も向上する。また、介在部材の厚さを１１ｍｍ以下（たとえば１０ｍｍより小さい方が良い）にしたので、ウレタンフォームの曲げ弾性率を大きくすることができるため、ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、扉厚さを小さくでき、しかも箱体強度を向上できる。また、介在部材（接着剤）として自己接着性を有する硬質ウレタンフォームを使用し、〔（介在部材の厚さ）／（介在部材の厚さ＋真空断熱材の厚さ）〕を０．３以下に設定すれば、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される扉の複合熱伝導率を小さくできるので、扉厚さを小さくしても断熱性能を向上させることができる。 Here, you may arrange | position the vacuum heat insulating material 400 to all the opening / closing doors or some opening / closing doors. For example, when the temperature difference between the outside air and the inside of the heat insulation box 700 (for example, the storage room) is relatively small (for example, a storage room in a refrigeration temperature zone such as the refrigerator room 2 or the vegetable room 5), the vacuum heat insulating material 400 is opened and closed. Even if it is disposed on the surface, the effect of improving the heat insulation performance is small. In such a case, sufficient heat insulating performance can be ensured even if the vacuum heat insulating material 400 is not disposed on the door. The vacuum heat insulating material 400 is used when the temperature difference between the outside air and the inside of the heat insulation box 700 (for example, the storage room) is relatively large (for example, a storage room in a freezing temperature zone such as the ice making room 3, the switching room 4, and the freezing room 6). If the vacuum heat insulating material 400 is disposed on the opening / closing door, the effect of improving the heat insulating performance is great. Therefore, in the case of a storage room having a relatively large temperature difference between the outside air and the inside of the heat insulation box 700 (for example, the storage room), sufficient heat insulating performance can be obtained by disposing the vacuum heat insulating material 400 on the door. Can be secured.
Further, a glass face material may be used for the door outer plate. In that case, the front side of the frame portion of the resin-made inner member having the frame portion and the inner side surface portion and opened on the front side (the inner side surface portion). A glass interior material is attached to the opening on the opposite side) with double-sided tape instead of the outer plate to form a door interior space, and hard urethane foam and vacuum heat insulating material 400 are disposed (filled) in this door interior space. ) In addition, the vacuum heat insulating material 400 is filled or coated with an adhesive (for example, hard urethane foam) as an interposition member in the door internal space in a state where the inner surface of the inner member is bonded to the inner side surface portion with a second adhesive such as a double-sided tape. Or it is enclosed. Here, since the density of the adhesive (for example, hard urethane foam) that is the interposed member is larger than 60 kg / m 3 , the rigid urethane foam that is the interposed member is formed densely, and the flexural modulus is increased. Even when a glass face material is used, the holding or adhesion strength of the glass face material is improved, and the strength (rigidity) of the rigid urethane foam that is an interposition member in the door interior space is improved, so the strength (rigidity) of the door is also improved. improves. In addition, since the thickness of the interposed member is 11 mm or less (for example, smaller than 10 mm is better), the bending elastic modulus of the urethane foam can be increased, so that the strength is improved even if the thickness of the urethane foam is reduced. Can be made. Therefore, the door thickness can be reduced and the box strength can be improved. In addition, a rigid urethane foam having self-adhesive properties is used as the intervening member (adhesive), and [(the thickness of the intervening member) / (the thickness of the intervening member + the thickness of the vacuum heat insulating material)] is 0.3 or less. If it is set to, since the composite thermal conductivity of the door formed from the composite member including the vacuum heat insulating material 400 and the rigid urethane foam can be reduced, the heat insulation performance can be improved even if the door thickness is reduced.

以上、本実施の形態の断熱箱体７００あるいは冷蔵庫１あるいは機器においては、外箱７１０と内箱７５０との間に形成された空間３１５と、開閉扉の内部空間である扉内部空間と、を合わせた空間体積に対して、真空断熱材４００の占める体積比率である真空断熱材４００の充填率が所定の範囲内（たとえば４０％以上８０％以下）に入るようにするようにしている。このため、断熱箱体７００の壁厚（たとえば、外箱７１０と内箱７５０との間の距離、及び、開閉扉の厚み）を従来よりも薄くすることができるため、省エネルギーで、かつ貯蔵室内の内容積効率の優れた断熱箱体７００、冷蔵庫１、機器を提供することができる。したがって、断熱箱体７００あるいは冷蔵庫１の外形サイズを変更しなくても貯蔵室内の内容積を従来よりも大きくできるので、断熱箱体７００の内部に収納できる収納物を従来よりも増やすことができる。したがって、従来よりも省エネルギーで断熱性能の優れた、商品価値の高い断熱箱体７００、冷蔵庫１、給湯機、ショーケース、機器を提供することができる。   As described above, in the heat insulating box 700 or the refrigerator 1 or the device according to the present embodiment, the space 315 formed between the outer box 710 and the inner box 750 and the door inner space that is the inner space of the open / close door are provided. The filling rate of the vacuum heat insulating material 400, which is the volume ratio occupied by the vacuum heat insulating material 400, is within a predetermined range (for example, 40% to 80%) with respect to the combined space volume. For this reason, the wall thickness of the heat insulation box 700 (for example, the distance between the outer box 710 and the inner box 750 and the thickness of the opening / closing door) can be made thinner than before, so it is energy saving and the storage room It is possible to provide a heat insulating box 700, a refrigerator 1, and a device having excellent internal volume efficiency. Therefore, since the internal volume in the storage chamber can be made larger than before without changing the external size of the heat insulation box 700 or the refrigerator 1, the amount of items that can be stored inside the heat insulation box 700 can be increased more than before. . Therefore, it is possible to provide a heat-insulating box 700, a refrigerator 1, a water heater, a showcase, and a device with high commercial value, which are energy saving and excellent in heat insulating performance than before.

なお、空間３１５内における真空断熱材４００の充填率を増大させることにより、空間３１５内における硬質ウレタンフォームの充填率が低下する。本実施の形態に係る断熱箱体７００においては、硬質ウレタンフォームの密度を従来よりも大きく（例えば６０ｋｇ／ｍ３より大きく）して、硬質ウレタンフォームの曲げ弾性率を、従来の断熱箱体に用いられていた硬質ウレタンフォームの曲げ弾性率（６ＭＰａ〜１０ＭＰａ程度）よりも大きな１５．０ＭＰａ以上にしている。したがって、本実施の形態に係る断熱箱体７００は、硬質ウレタンフォームの充填率の低下に起因する強度低下も抑制することができ、貯蔵品収納空間や貯蔵室内の収納物や開閉扉の重量による歪みに耐え切れず断熱箱体７００が変形するなどの問題がなく、信頼性の高い断熱箱体７００や冷蔵庫１や機器が得られる。 In addition, the filling rate of the rigid urethane foam in the space 315 falls by increasing the filling rate of the vacuum heat insulating material 400 in the space 315. In the heat insulation box 700 according to the present embodiment, the density of the hard urethane foam is made larger than that of the conventional one (for example, larger than 60 kg / m 3 ), and the bending elastic modulus of the hard urethane foam is changed to the conventional heat insulation box. The bending elastic modulus (about 6 MPa to 10 MPa) of the rigid urethane foam used is set to 15.0 MPa or more. Therefore, the heat insulation box 700 according to the present embodiment can also suppress a decrease in strength due to a decrease in the filling rate of the rigid urethane foam, and depends on the weight of the stored item storage space, the storage item in the storage chamber, and the door. There is no problem that the heat insulation box 700 is not deformed without being able to withstand the distortion, and the heat insulation box 700, the refrigerator 1 and the device having high reliability can be obtained.

したがって、本実施の形態の冷蔵庫１あるいは真空断熱材４００を有する断熱箱体７００を備えた機器においては、断熱箱体７００が歪んで開閉扉が傾いたり開閉扉がスムーズに開閉できないということを抑制でき、また、変形による外観の悪化を抑制することができる。また、開閉扉と断熱箱体の開口部をシールするガスケットとガスケットの接触面（シール面）との位置関係がずれて隙間が発生し、貯蔵室内の空気（冷蔵庫の場合は冷気）が断熱箱体外へ流出することも防止できる。よって、真空断熱材４００を多量に使用しても断熱箱体７００の性能低下や信頼性低下が抑制でき、優れた断熱性能を有するので、省エネルギーで高信頼性の冷蔵庫あるいは真空断熱材を有する断熱箱体あるいは真空断熱材を備えた機器、断熱箱体を備えた機器を得ることができる。
また、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加による箱体等からのウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能低下、コストＵＰなどの問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）は１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 Therefore, in the apparatus including the refrigerator 1 or the heat insulating box 700 having the vacuum heat insulating material 400 according to the present embodiment, the heat insulating box 700 is prevented from being distorted and the opening / closing door tilting or the opening / closing door cannot be opened / closed smoothly. In addition, deterioration of the appearance due to deformation can be suppressed. In addition, the positional relationship between the gasket that seals the opening of the open / close door and the heat insulation box and the contact surface (seal surface) of the gasket shifts, creating a gap, and the air in the storage room (cold air in the case of a refrigerator) is insulated. It can also be prevented from flowing out of the body. Therefore, even if a large amount of the vacuum heat insulating material 400 is used, the performance deterioration and reliability deterioration of the heat insulating box 700 can be suppressed, and the heat insulating performance has excellent heat insulating performance. Therefore, the heat insulation has a highly reliable refrigerator or vacuum heat insulating material. A device having a box or a vacuum heat insulating material and a device having a heat insulating box can be obtained.
Also, if the density of heat insulating material such as urethane (for example, rigid urethane foam) is too large, (1) cost increases due to an increase in the amount of urethane injected, and (2) a box due to an increase in the injection pressure of urethane. Occurrence of urethane leaks, and (3) molds for suppressing box deformation due to increased foam pressure when foaming urethane, and adhesion and adhesion between the box pressing member and the urethane and the box pressing member, etc. Problems such as deterioration of quality, performance deterioration, and cost increase occur, such as the box holding member is difficult to remove from the box (it is difficult to remove from the box), and (4) the heat insulation performance is abruptly deteriorated due to the increased density of urethane. Therefore, the density of the insulating member such as urethane (for example, hard urethane foam) (the density after foaming in the case of foamed insulating material) is 100 kg / m 3 or less (preferably). Or less than 90 kg / m 3 ).

ここで、断熱箱体７００が冷蔵庫に使用される場合のように、上下方向の高さが幅方向の長さよりも大きい細長い直方体形状をしている場合には、略水平に配置される底面部７８０や天井部７４０や貯蔵室間の仕切壁２４等よりも、略垂直に配置される側壁７９０や背面壁７３０の方が細長い形状をしているので、剛性が弱く変形しやすい。そのため、本実施の形態のように真空断熱材４００の充填率、被覆率を所定範囲内に設定することで、断熱箱体７００の強度（剛性）を向上させることができる。また、凸部４５０あるいは突起部９１０を設けることでも箱体強度を向上させることもできる。また、凸部４５０の一端を凹部４４０あるいは第２の凹部４４１に配設される真空断熱材４００と所定長さＸだけ重なるように設け、他端を側面部７９０に接続することで真空断熱材４００を硬質ウレタンフォームを介して凸部４５０と一体に形成でき、また、真空断熱材４００を硬質ウレタンフォームを介して側壁７９０と一体に形成できるので、箱体７００の強度を向上させることができる。   Here, when the heat insulation box 700 has an elongated rectangular parallelepiped shape in which the height in the vertical direction is larger than the length in the width direction as in the case where the heat insulation box 700 is used in a refrigerator, the bottom surface portion is disposed substantially horizontally. Since the side wall 790 and the back wall 730 that are arranged substantially vertically have a longer and narrower shape than the partition wall 780, the ceiling portion 740, and the partition wall 24 between the storage rooms, etc., the rigidity is weak and it is easily deformed. Therefore, the strength (rigidity) of the heat insulating box 700 can be improved by setting the filling rate and the covering rate of the vacuum heat insulating material 400 within a predetermined range as in the present embodiment. The box strength can also be improved by providing the convex portion 450 or the protruding portion 910. Further, one end of the convex portion 450 is provided so as to overlap with the vacuum heat insulating material 400 disposed in the concave portion 440 or the second concave portion 441 by a predetermined length X, and the other end is connected to the side surface portion 790 to thereby provide a vacuum heat insulating material. 400 can be formed integrally with the convex portion 450 via the hard urethane foam, and the vacuum heat insulating material 400 can be formed integrally with the side wall 790 via the hard urethane foam, so that the strength of the box 700 can be improved. .

図２１は、断熱箱体７００の側面部７９０と背面部の表面積に対する真空断熱材４００の占める面積比率（側背面被覆率）と箱体変形量の関係を表した図であり、計算結果である。断熱箱体の強度は、側壁７９０、背面壁７３０の形状が細長い長方形状であり、天面壁７４０や底面壁７８０や仕切壁２４などの略正方形状に比べて剛性が弱いので、真空断熱材４００の側背面被覆率を所定値以上に設定することで箱体強度を向上させることができる。ここでは、側壁７９０と背面壁７３０の表面積に対する真空断熱材４００の占める面積比率（側背面被覆率）と箱体強度の関係について説明する。   FIG. 21 is a diagram showing the relationship between the area ratio of the vacuum heat insulating material 400 to the surface area of the side surface portion 790 and the back surface portion (side back surface coverage) of the heat insulating box 700 and the deformation amount of the box, and is a calculation result. . The strength of the heat insulating box is such that the shape of the side wall 790 and the back wall 730 is an elongated rectangular shape, and the rigidity is weaker than the substantially square shapes such as the top wall 740, the bottom wall 780, and the partition wall 24. The box strength can be improved by setting the side rear surface coverage to a predetermined value or more. Here, the relationship between the area ratio of the vacuum heat insulating material 400 to the surface area of the side wall 790 and the back wall 730 (side back surface coverage) and the box strength will be described.

図２１において、横軸は断熱箱体７００の側壁７９０と背面壁７３０の表面積に対する真空断熱材４００の占める面積比率（側背面被覆率）を表し、縦軸は箱体の変形量を表している。ここで、ウレタンの密度は６０ｋｇ／ｍ３、真空断熱材４００の充填率は４０％、側背面の面積比率（側背面被覆率）は５０％の時の箱体変形量を１としている。計算に使用した真空断熱材４００の曲げ弾性率は２０ＭＰａであり、実際に使用される真空断熱材の曲げ弾性率の測定結果に基づいており、従来の硬質ウレタンフォームの曲げ弾性率（６ＭＰａ〜１０ＭＰａ程度）よりも大きいものを使用している。ここで、面積比率（側背面被覆率）を変更する場合、真空断熱材の充填率は４０％で一定としているので、真空断熱材の面積比率（側背面被覆率）が大きくなれば真空断熱材の厚さが小さくなっている。 In FIG. 21, the horizontal axis represents the area ratio (side rear surface coverage) of the vacuum heat insulating material 400 to the surface area of the side wall 790 and the back wall 730 of the heat insulation box 700, and the vertical axis represents the deformation amount of the box. . Here, the amount of deformation of the box is 1 when the density of urethane is 60 kg / m 3 , the filling rate of the vacuum heat insulating material 400 is 40%, and the area ratio of the side back surface (side back surface coverage) is 50%. The bending elastic modulus of the vacuum heat insulating material 400 used for the calculation is 20 MPa, which is based on the measurement result of the bending elastic modulus of the vacuum heat insulating material actually used, and the bending elastic modulus (6 MPa to 10 MPa) of the conventional rigid urethane foam. Use a larger one. Here, when changing the area ratio (side back surface coverage), the filling rate of the vacuum heat insulating material is constant at 40%, so if the area ratio (side back surface coverage) of the vacuum heat insulating material increases, the vacuum heat insulating material The thickness of the is getting smaller.

なお、計算に使用した冷蔵庫１は、一例であるが、４枚扉以上（たとえば４枚扉あるいは５枚扉あるいは６枚扉仕様）で内容積が５００Ｌクラスで消費電力が４０Ｗ以下程度の冷蔵庫を想定している。外箱７１０と内箱７５０との間の板厚さを含む距離（壁厚さ）は、平均３０ｍｍであり、空間３１５の厚さ（壁内厚さ）は外箱７１０、内箱７５０の板厚をそれぞれ１ｍｍと仮定して２８ｍｍとした。硬質ウレタンフォームの密度は、６０Ｋｇ／ｍ３、真空断熱材４００の熱伝導率は、０．００２１（Ｗ／ｍＫ）、硬質ウレタンフォームの熱伝導率は０．０１９（Ｗ／ｍＫ）であり、真空断熱材４００が硬質ウレタンフォームよりも約１０倍程度、断熱性能が良い。 The refrigerator 1 used for the calculation is an example, but a refrigerator having four doors or more (for example, four doors, five doors, or six doors), an internal volume of 500 L class, and power consumption of about 40 W or less. Assumed. The distance (wall thickness) including the plate thickness between the outer box 710 and the inner box 750 is 30 mm on average, and the thickness of the space 315 (wall thickness) is the plate of the outer box 710 and the inner box 750. The thickness was assumed to be 28 mm, assuming 1 mm each. The density of the rigid urethane foam is 60 kg / m 3 , the thermal conductivity of the vacuum heat insulating material 400 is 0.0021 (W / mK), and the thermal conductivity of the rigid urethane foam is 0.019 (W / mK), The vacuum heat insulating material 400 is about 10 times as good as the hard urethane foam, and has a good heat insulating performance.

図２１において、横軸が側面壁と背面壁とをあわせた表面積に対する真空断熱材４００の占める面積比率（側背面の真空断熱材被覆率）を表し、縦軸が開閉扉を有する断熱箱体７００に所定の荷重を加えた場合の箱体変形量（箱体の倒れ量）を表している。ここで、箱体の変形量は、たとえば断熱箱体の一方の側壁の上面から約１／４程度の高さ位置に略水平方向（横方向、前面開口部を正面に見て左右方向）に所定の荷重を加えた場合の断熱箱体の側壁上端の左右方向の変形量を表している。   In FIG. 21, the horizontal axis represents the area ratio of the vacuum heat insulating material 400 to the total surface area of the side wall and the back wall (vacuum heat insulating material coverage on the side back surface), and the vertical axis represents the heat insulating box 700 having an open / close door. Represents the amount of deformation of the box when a predetermined load is applied (the amount of collapse of the box). Here, the deformation amount of the box is, for example, in a substantially horizontal direction (lateral direction, left and right direction when the front opening is viewed in front) at a height position of about ¼ from the upper surface of one side wall of the heat insulating box. The deformation amount in the left-right direction of the upper end of the side wall of the heat insulation box when a predetermined load is applied is shown.

図２１において、真空断熱材４００の面積比率が大きくなると箱体変形量が小さくなることが分かる。側面・背面の面積比率（側背面の真空断熱材被覆率）が７０％以上になると箱体変形量の変化率が小さくなっている。すなわち、側面・背面の面積比率が７０％程度までは面積比率が大きくなると箱体変形量が急激に小さくなるが、側面・背面の面積比率が７０％以上になると面積比率が大きくなっても箱体変形量はほとんど変化しなくなる。したがって、側面・背面の面積比率（側背面の真空断熱材被覆率）が７０％以上になると箱体の変形量の低下割合が極端に小さくなり、真空断熱材の側背面面積比率を大きくしても箱体変形量がほとんど変化しなくなっている。これは、箱体強度に対する真空断熱材の側背面の面積比率の影響度合いがほぼ飽和に近づいたためと考えられる。   In FIG. 21, it can be seen that the amount of deformation of the box decreases as the area ratio of the vacuum heat insulating material 400 increases. When the area ratio between the side surface and the back surface (the vacuum heat insulating material coverage on the side back surface) is 70% or more, the rate of change in the amount of deformation of the box is small. That is, when the area ratio is increased up to about 70%, the deformation amount of the box decreases rapidly. However, when the area ratio between the side and the back is more than 70%, the box is increased even if the area ratio increases. The amount of body deformation hardly changes. Therefore, when the area ratio between the side and the back (vacuum insulation coverage on the side and back) is 70% or more, the rate of decrease in the deformation of the box is extremely small, and the side area ratio of the vacuum insulation is increased. However, the amount of deformation of the box is almost unchanged. This is considered to be because the degree of influence of the area ratio of the side rear surface of the vacuum heat insulating material on the box strength is almost saturated.

ここで、真空断熱材の充填率を４０％で一定として計算しているため、真空断熱材４００の配設面積を大きくしていくと、真空断熱材４００の厚みが薄くなる。真空断熱材の側面・背面の面積比率が７０％程度までは、側面・背面の面積比率を大きくしていくと、真空断熱材の厚さが薄くなることによる箱体変形の増加量よりも真空断熱材の配設面積が大きくなることによる箱体の強度ＵＰによる箱体変形の減少量の方が大きいため、箱体の剛性が向上し、箱体の変形量が減少していく。しかし、真空断熱材の側面・背面の面積比率が７０％程度を超えると、真空断熱材の厚さが薄くなることによる箱体の強度低下による箱体変形の増加量と真空断熱材の配設面積が大きくなることによる箱体の強度ＵＰによる箱体変形の減少量とが同程度になり、箱体の変形量の減少度合いが小さくなったと考えられる。   Here, since the filling rate of the vacuum heat insulating material is calculated to be constant at 40%, the thickness of the vacuum heat insulating material 400 becomes thinner as the arrangement area of the vacuum heat insulating material 400 is increased. When the area ratio between the side and the back of the vacuum heat insulating material is up to about 70%, increasing the area ratio between the side and the back increases the vacuum rather than the increased amount of deformation of the box due to the reduced thickness of the vacuum heat insulating material. Since the amount of reduction in deformation of the box due to the increase in strength of the box due to the increase in the arrangement area of the heat insulating material is larger, the rigidity of the box is improved and the amount of deformation of the box is reduced. However, when the area ratio of the side surface / back surface of the vacuum heat insulating material exceeds about 70%, the amount of deformation of the box due to the reduced strength of the box due to the reduced thickness of the vacuum heat insulating material and the arrangement of the vacuum heat insulating material. It is considered that the amount of reduction in the deformation of the box due to the increase in the strength of the box due to the increase in the area is almost the same, and the degree of reduction in the deformation of the box is reduced.

また、真空断熱材の配設面積比率（被覆率）を大きくすることによって真空断熱材の厚さが薄くなるとウレタンフォームの厚さが厚くなる。配設面積比率が７０％程度までは、真空断熱材の厚さが所定厚さ以上であるため、真空断熱材の厚さの減少量よりも面積比率の増加量の方が断熱箱体の強度に与える影響が大きく箱体変形量が減少するが、真空断熱材の配設面積比率をさらに増加させていくと真空断熱材の厚さが小さくなり、ウレタンの厚さが大きくなることで、ウレタンの厚さの増加量と真空断熱材の配設面積比率の増加量の断熱箱体の強度に与える影響が同等になり、箱体変形量の減少度合いが小さくなると考えられる。   Moreover, when the thickness of the vacuum heat insulating material is reduced by increasing the arrangement area ratio (coverage) of the vacuum heat insulating material, the thickness of the urethane foam is increased. Since the thickness of the vacuum heat insulating material is equal to or greater than the predetermined thickness until the arrangement area ratio is about 70%, the increased amount of the area ratio is stronger than the reduced amount of the vacuum heat insulating material. The amount of deformation of the box body is greatly reduced, but if the area ratio of the vacuum insulation is further increased, the thickness of the vacuum insulation is reduced and the thickness of the urethane is increased. It is considered that the effect of the increase in the thickness of the heat insulation box on the strength of the heat insulating box is the same as the increase in the area ratio of the vacuum heat insulating material, and the degree of reduction in the deformation of the box is reduced.

したがって、真空断熱材４００の側面・背面の面積比率（側背面被覆率）を所定値（７０％）以上に設定すれば、箱体強度が得られるので信頼性の高い箱体が得られる。また、真空断熱材の側面・背面の面積比率を所定値（７０％）以上に設定すれば、箱体変形量がほとんど変化しない領域になるため、真空断熱材の配設面積にバラツキが生じても、箱体の変形量がほとんど変化しないので、高強度で意匠性が良く、信頼性の高い断熱箱体、冷蔵庫、ショーケース、機器が得られる。真空断熱材４００の被覆率を所定値以上（６０％以上）にして、真空断熱材４００の側面・背面の面積比率を第２の所定値（７０％）以上に設定すれば、断熱性能が向上し、しかも箱体変形量を低減できるので、断熱性能が大きく信頼性の高い省エネルギーな冷蔵庫、ショーケース、機器が得られる。   Therefore, if the area ratio (side back surface coverage) of the side surface / back surface of the vacuum heat insulating material 400 is set to a predetermined value (70%) or more, the box strength can be obtained, and thus a highly reliable box can be obtained. In addition, if the area ratio of the side surface / back surface of the vacuum heat insulating material is set to a predetermined value (70%) or more, the amount of deformation of the box will hardly change. However, since the amount of deformation of the box hardly changes, a heat insulating box, a refrigerator, a showcase, and a device with high strength, good design, and high reliability can be obtained. If the coverage of the vacuum heat insulating material 400 is set to a predetermined value or higher (60% or higher) and the area ratio of the side surface / back surface of the vacuum heat insulating material 400 is set to the second predetermined value (70%) or higher, the heat insulating performance is improved. In addition, since the amount of deformation of the box can be reduced, an energy-saving refrigerator, a showcase, and a device having high heat insulation performance and high reliability can be obtained.

ここで、真空断熱材の厚みを一定とし真空断熱材４００の配設面積を広げていけば、真空断熱材の被覆率、充填率とも大きくできるが、真空断熱材４００の充填率を大きくするとコストが増大するため、充填率を変えずに被覆率を大きくすることで断熱箱体７００の強度を上げた方が低コストであり、しかも真空断熱材の配設面積が大きくできるので断熱効率がよくなる。したがって、真空断熱材４００の充填率を４０％以上、側面・背面の面積比率（側背面の真空断熱材被覆率）を７０％以上とすることで低コストで効率よく断熱箱体の強度の確保できる。したがって、真空断熱材の側面・背面の面積比率（側背面の真空断熱材被覆率）を第２の所定値（断熱箱体の変形量の低下割合が小さくなる面積比率であり、たとえば７０％程度）以上に設定すれば、断熱箱体７００の壁厚を薄く（ウレタンの厚さを薄く）して貯蔵室の内容積を大きくすることが可能となる。側壁７９０と背面壁７３０の真空断熱材４００の配設面積（側背面の真空断熱材被覆率）が大きくなるほど断熱箱体７００の変形量が小さくなるので、断熱箱体７００の強度を大きくすることができ、高強度で断熱性能の優れた断熱箱体７００、冷蔵庫１、断熱箱体を備えた機器を提供できる。   Here, if the thickness of the vacuum heat insulating material is made constant and the arrangement area of the vacuum heat insulating material 400 is increased, the coverage and filling rate of the vacuum heat insulating material can be increased, but if the filling rate of the vacuum heat insulating material 400 is increased, the cost is increased. Therefore, it is cheaper to increase the strength of the heat insulating box 700 by increasing the coverage without changing the filling rate, and the area for arranging the vacuum heat insulating material can be increased, so that the heat insulating efficiency is improved. . Therefore, ensuring the strength of the heat insulation box efficiently at low cost by setting the filling rate of the vacuum heat insulating material 400 to 40% or more and the area ratio of the side surface / back surface (vacuum heat insulating material covering rate of the side back surface) to 70% or more. it can. Therefore, the area ratio of the side surface / back surface of the vacuum heat insulating material (vacuum heat insulating material covering ratio of the side back surface) is the second predetermined value (area ratio in which the decreasing rate of deformation amount of the heat insulating box is small, for example, about 70%. ) If set above, the wall thickness of the heat insulation box 700 can be reduced (the thickness of urethane is reduced) to increase the internal volume of the storage chamber. Since the deformation amount of the heat insulation box 700 decreases as the arrangement area of the vacuum heat insulation 400 on the side wall 790 and the back wall 730 (vacuum heat insulation coverage of the side back) increases, the strength of the heat insulation box 700 should be increased. Therefore, it is possible to provide a device including the heat insulation box 700, the refrigerator 1, and the heat insulation box having high strength and excellent heat insulation performance.

（ウレタン物性）
ここで、断熱箱体７００に充填される硬質ウレタンフォームの物性、特性について説明する。硬質ウレタンフォームは、フリーフォーム密度を大きくすることで、発泡したあとの強度が安定して外観の優れた、品質の高い断熱箱体７００を提供できる。 (Urethane properties)
Here, the physical properties and characteristics of the rigid urethane foam filled in the heat insulating box 700 will be described. By increasing the density of the free foam, the rigid urethane foam can provide a high-quality heat-insulating box 700 with a stable strength after foaming and an excellent appearance.

ここで、フリーフォーム密度とは、箱体など密閉された空間内でウレタンを発泡させるのではなく、開放された容器内など開放状態でウレタンを発泡させた時の硬質ウレタンフォームの密度である。ただし、実際には、断熱箱体７００内の密閉された狭い空間内でウレタンが発泡、膨張するため、断熱箱体７００など密閉された狭い空間内で発泡、膨張したウレタンの密度は、開放された状態で発泡、膨脹したウレタンのフリーフォーム密度よりも大きくなる。   Here, the free foam density is the density of rigid urethane foam when urethane is foamed in an open state, such as in an open container, rather than foaming urethane in a sealed space such as a box. However, since urethane foams and expands in a sealed narrow space in the heat insulating box 700, the density of the urethane foamed and expanded in a sealed narrow space such as the heat insulating box 700 is released. It becomes larger than the free foam density of urethane foamed and expanded.

発泡後の硬質ウレタンフォームの密度を上げることによって図１６で説明したように曲げ弾性率を大きくすることが可能であるが、ウレタン原液をそのまま断熱箱体７００に流し込んで充填して密度を大きくしようとした場合、従来使用の発泡倍率の小さいウレタンでは、フリーフォーム密度が２６〜２８ｋｇ／ｍ３と小さく、発泡倍率が小さいため、ウレタンの流れる部分の流路厚さに大小が存在すると発泡度合いが均一にならず、注入口７０３、７０４付近と末端部（注入口から離れた部位）とではウレタン密度にムラができやすく、安定した強度を得ることが困難である。 It is possible to increase the flexural modulus as described with reference to FIG. 16 by increasing the density of the rigid urethane foam after foaming. However, the urethane stock solution is poured into the heat insulating box 700 as it is to increase the density. In the case of the conventional urethane having a small expansion ratio, the free foam density is as small as 26 to 28 kg / m 3 and the expansion ratio is small. It is not uniform, and the urethane density is likely to be uneven in the vicinity of the inlets 703 and 704 and the end portion (site away from the inlet), and it is difficult to obtain a stable strength.

本実施の形態では、フリーフォーム密度を従来（たとえば２５〜２８ｋｇ／ｍ３程度）よりも大きくした硬質ウレタンフォーム（たとえばフリーフォーム密度が３０〜４５ｋｇ／ｍ３程度）を使用することで、ウレタンが流れる部分の流路厚さに多少の大小が存在しても、発泡倍率が大きいため安定して発泡でき、発泡した後の密度のバラツキを小さくすることが可能となる。したがって、発泡後のウレタンの密度を略均一にすることが容易となる。 In this embodiment, the use of conventional (e.g. 25~28kg / m about 3) largely rigid urethane foam than (e.g. free-foam density is 30~45kg / m about 3) a free-foam density, urethane Even if the channel thickness of the flowing part is somewhat large or small, foaming can be stably performed because the foaming ratio is large, and density variation after foaming can be reduced. Therefore, it becomes easy to make the density of urethane after foaming substantially uniform.

硬質ウレタンフォームのような発泡体は、内部に気泡を有しており、密度が小さい方が気泡が多く断熱の効果が高い。そのため従来は、断熱箱体７００には、使用される硬質ウレタンフォームの発泡後の密度が２５〜２８ｋｇ／ｍ３程度の密度の小さい物が使用されている。この従来のウレタンフォームを使用して曲げ弾性率を１５ＭＰａ以上にして断熱箱体７００の強度を確保しようとすると、例えば壁内厚さ２８ｍｍの場合、真空断熱材の厚さを除いたウレタンの厚さが８ｍｍの断熱箱体では、ウレタンのジャストパック量（対象となる箱体内に硬質ウレタンフォームが無理な負荷などかけずに丁度充填される時のウレタン量であり発泡後の密度が均一になりやすい）よりも多くのウレタンを注入、充填させなければならなくなり、密度にムラができやすい。 Foams such as rigid urethane foam have bubbles inside, and the smaller the density, the more bubbles and the higher the heat insulation effect. Therefore, conventionally, as the heat insulation box 700, a material having a small density of about 25 to 28 kg / m 3 after the foaming of the rigid urethane foam used is used. When using this conventional urethane foam to increase the bending elastic modulus to 15 MPa or more and secure the strength of the heat insulation box 700, for example, when the wall thickness is 28 mm, the thickness of the urethane excluding the thickness of the vacuum heat insulating material In a heat-insulated box with a length of 8 mm, the amount of urethane just pack (the amount of urethane when the hard urethane foam is filled into the target box without excessive load, etc., and the density after foaming becomes uniform. It is necessary to inject and fill more urethane than easy), and the density is likely to be uneven.

さらに、ジャストパック量よりもウレタンを多く注入、充填しなければならないため、ウレタン注入時に加圧するか充填時間を長くする必要が生じるため、断熱箱体７００や開閉扉の外郭の接合部などの隙間（例えば外箱７１０と内箱７５０との接合部）からウレタンが漏れだし、必要とする所定量のウレタンを注入できず（充填できず）、箱体に充填後の硬質ウレタンフォームの密度を所定値（たとえば６０Ｋｇ／ｍ３）よりも大きい密度に確保することが困難である。また、ウレタンが箱体の外郭から漏れ出すと、漏れ出たウレタンを取り除く作業が必要となり、作業時間あるいは組立時間が多く必要になり、コストアップ、意匠性低下となっていた。したがって、従来は、断熱箱体に充填された後のウレタンの密度は６０Ｋｇ／ｍ３よりも小さく、２５〜３０Ｋｇ／ｍ３程度、多くても５５Ｋｇ／ｍ３以下程度のものを使用していた。 Furthermore, since it is necessary to inject and fill more urethane than the just pack amount, it is necessary to pressurize at the time of urethane injection or lengthen the filling time, so there is a gap between the heat insulation box 700 and the joint of the outer door of the door. Urethane leaks out (for example, the joint between the outer box 710 and the inner box 750), and the required amount of urethane cannot be injected (cannot be filled), and the density of the hard urethane foam after filling the box is predetermined. It is difficult to ensure a density larger than a value (for example, 60 kg / m 3 ). Further, when urethane leaks from the outer shell of the box, it is necessary to remove the leaked urethane, which requires a lot of work time or assembly time, resulting in an increase in cost and a decrease in design. Therefore, conventionally, the density of the urethane after filling the heat insulating box is smaller than 60 kg / m 3 and about 25 to 30 kg / m 3 , and at most about 55 kg / m 3 or less. .

ここで、本実施の形態では、ウレタン原液に含まれる発泡材などの量を減らすことで、フリーフォーム密度を大きくすることを検討した。例えばウレタンの厚さが８ｍｍ（真空断熱材の厚さを除いたウレタン流路厚さが約８ｍｍ）の断熱箱体７００では、フリーフォーム密度を所定値（３０ｋｇ／ｍ３以上、好ましくは３５ｋｇ／ｍ３以上）に設定することでジャストパック量での密度（無理な負荷などかけずに箱体に充填された後のウレタンの密度）を６０ｋｇ／ｍ３より大きくすることが可能となり、硬質ウレタンフォームの曲げ弾性率を１５ＭＰａ以上とすることができる。したがって、ウレタンの密度ムラやウレタン漏れといった断熱箱体の不具合を解消でき、信頼性の高い、高強度の断熱箱体７００、冷蔵庫１、ショーケース、断熱箱体を備えた機器を得ることができる。 Here, in the present embodiment, it has been studied to increase the free foam density by reducing the amount of foaming material or the like contained in the urethane stock solution. For example, in a heat insulating box 700 having a urethane thickness of 8 mm (a urethane flow path thickness excluding the thickness of the vacuum heat insulating material is about 8 mm), the free foam density is a predetermined value (30 kg / m 3 or more, preferably 35 kg / m 3 or higher) in the density of a just pack weight (density of the urethane after being filled into the box without applying such excessive load) it is possible to increase from 60 kg / m 3 in the set, rigid polyurethane The flexural modulus of the foam can be 15 MPa or more. Therefore, it is possible to solve the problems of the heat insulation box such as uneven density of urethane and urethane leakage, and it is possible to obtain a reliable and high-strength heat insulation box 700, the refrigerator 1, the showcase, and the equipment including the heat insulation box. .

ここで、硬質ウレタンのフリーフォーム密度を所定値よりも大きくして発泡後のウレタン密度を大きくしたことによる断熱性能への影響が懸念されるが、図１７〜図２１で説明したように、たとえば真空断熱材４００の配設部位のウレタンの厚さを所定値以下（１１ｍｍ以下、あるいは６ｍｍ以下）に設定したり、ウレタンの厚さ／壁内厚さを所定値（０．３）以下に設定したり、真空断熱材４００の充填率を所定範囲（４０％以上９０％以下）に設定したりすれば、断熱箱体の断熱性能に対する影響（断熱箱体７００や開閉扉の断熱箱体の断熱性能へ与える影響）を小さくすることができる。なお、ウレタンの厚さを１１ｍｍ以下にする場合には、フリーフォーム密度を、所定値（たとえば３５ｋｇ／ｍ３）以上にすることでウレタン漏れの起こらないジャストパック量に設定することが可能となる（ジャストパック量を調整することができる）。 Here, although there is a concern about the influence on the heat insulation performance by increasing the urethane foam density after foaming by making the free foam density of the hard urethane larger than a predetermined value, as explained in FIGS. The urethane thickness at the location where the vacuum heat insulating material 400 is disposed is set to a predetermined value or less (11 mm or less, or 6 mm or less), or the urethane thickness / wall thickness is set to a predetermined value (0.3) or less. If the filling rate of the vacuum heat insulating material 400 is set within a predetermined range (40% or more and 90% or less), the effect on the heat insulation performance of the heat insulation box (the heat insulation of the heat insulation box 700 or the heat insulation box of the door) (Effect on performance) can be reduced. When the thickness of the urethane is 11 mm or less, it is possible to set the free foam density to a predetermined pack amount (for example, 35 kg / m 3 ) or more so that the just pack amount does not cause urethane leakage. (Just pack amount can be adjusted).

本実施の形態に係る断熱箱体７００は、断熱箱体７００の壁厚を従来よりも薄くすることができ、また、所定の強度を確保しても外郭よりウレタン充填時にウレタンが漏れにくく、必要な品質を満足でき、省エネルギーで、内容積効率の優れた断熱箱体７００を提供することができる。すなわち、断熱箱体７００あるいは冷蔵庫１あるいは断熱箱体を備えた機器の外形サイズを変更せずに断熱箱体の貯蔵品収納容積（たとえば冷蔵庫の場合には、庫内容積あるいは貯蔵室容積）を従来よりも大きくすることができ、断熱箱体７００の内部に貯蔵できる収納物を従来よりも増やすことができる。したがって、ユーザにとって使い勝手がよく、断熱性もよく、しかも高強度で信頼性の高い断熱箱体７００あるいは冷蔵庫１あるいは断熱箱体を備えた機器が得られる。また、室内（貯蔵室内）の収納容積を従来と同等に設定する場合は、壁厚さを小さく出来る分だけ、外形寸法を小さくできる。   The heat insulation box 700 according to the present embodiment can make the wall thickness of the heat insulation box 700 thinner than the conventional one, and even if a predetermined strength is ensured, urethane is less likely to leak when filled with urethane from the outer shell. Therefore, it is possible to provide a heat insulating box 700 that satisfies high quality, energy saving, and excellent internal volume efficiency. That is, the storage capacity of the heat insulation box 700 or the refrigerator 1 or the equipment equipped with the heat insulation box without changing the external size (for example, in the case of a refrigerator, the storage volume or the storage room volume) It can be made larger than before, and the amount of items that can be stored inside the heat insulating box 700 can be increased more than before. Therefore, it is easy to use for the user, the heat insulation is good, and the high-strength and high-reliability heat-insulating box 700 or the refrigerator 1 or the device provided with the heat-insulating box is obtained. In addition, when the storage volume in the room (storage room) is set to be equal to the conventional one, the outer dimensions can be reduced by the amount that the wall thickness can be reduced.

ここで、冷蔵庫１は、冷蔵室２、冷凍室６、野菜室５などの複数の貯蔵室へ供給する空気（冷気）を冷却するための冷却装置を備えている。この冷却装置は、圧縮機１２、冷媒配管（たとえば凝縮配管７２５）、減圧装置（膨張弁やキャピラリーチューブ等）、冷却器１３等で構成されて冷凍サイクルを形成している。この冷凍サイクルを構成する構成要素のうち、圧縮機１２、減圧装置は、冷蔵庫１を形成する断熱箱体７００の背面下側（背面上側でも良い）に形成された機械室１Ａ内に設けられている。凝縮配管７２５は、断熱箱体７００の例えば側壁７９０あるいは背面壁７３０あるいは天面壁７４０に設けられている。貯蔵室の背面には貯蔵品収納空間を形成するファングリルなどにより背面壁７３０の貯蔵室側に内箱７５０とは別部材の背面カバーが設けられており、冷却器１３は、内箱７５０とファングリルなどの背面カバー部材との間に形成された冷却器室１３１内に設けられている。また、この冷却器室１３１には、冷却器１３で冷却された空気（冷気）を冷蔵室２、冷凍室６、野菜室５などの各貯蔵室に送風するための冷気循環用ファン１４も設けられている。また、断熱箱体７００の天面壁７４０あるいは背面壁７３０の上部（あるいは背面壁７３０の略中央高さ位置）には制御基板室３１が設けられ、制御基板室３１内には制御装置３０が設けられており、当該制御装置３０は、圧縮機１２や冷気循環用ファン１４の回転数等を運転動作制御、あるいは庫内温度制御などを行う。   Here, the refrigerator 1 includes a cooling device for cooling air (cold air) supplied to a plurality of storage rooms such as the refrigerator compartment 2, the freezer compartment 6, and the vegetable compartment 5. This cooling device includes a compressor 12, a refrigerant pipe (for example, a condensation pipe 725), a pressure reducing device (an expansion valve, a capillary tube, etc.), a cooler 13, and the like to form a refrigeration cycle. Among the components constituting the refrigeration cycle, the compressor 12 and the pressure reducing device are provided in a machine room 1A formed on the lower back side (or the upper back side) of the heat insulating box 700 forming the refrigerator 1. Yes. The condensation pipe 725 is provided on, for example, the side wall 790, the back wall 730, or the top wall 740 of the heat insulation box 700. A rear cover, which is a separate member from the inner box 750, is provided on the rear wall of the storage wall of the back wall 730 by a fan grill or the like that forms a storage space for storage items on the back of the storage room. It is provided in a cooler chamber 131 formed between a back cover member such as a fan grill. The cooler chamber 131 is also provided with a cool air circulation fan 14 for sending air (cold air) cooled by the cooler 13 to each storage room such as the refrigerator compartment 2, the freezer compartment 6, and the vegetable compartment 5. It has been. In addition, a control board chamber 31 is provided at the top of the top wall 740 or the back wall 730 of the heat insulation box 700 (or a substantially central height position of the back wall 730), and the control device 30 is provided in the control board chamber 31. Therefore, the control device 30 controls the operation speed of the compressor 12 and the cooling air circulation fan 14 and controls the internal temperature.

このように構成された冷蔵庫１においては、機械室１Ａ内に配置されている圧縮機１２によって送り出された高温高圧のガス冷媒は、冷媒配管（たとえば凝縮配管）７２５を通り凝縮されて低温高圧の液冷媒になり、低温高圧の液冷媒は、減圧装置によって低温低圧の気液二相冷媒に減圧され、冷却器１３に到達するときには、例えば−２０℃以下の低い温度となっている。この低温低圧の気液二相冷媒が冷却器室１３１内の空気を冷却し、この冷却された空気を冷気循環用ファン１４によって冷蔵室２、冷凍室６、野菜室５などの各貯蔵室へ供給することにより、冷蔵室２、冷凍室６、野菜室５などの貯蔵室（あるいは、これら貯蔵室に収納された収納物）が冷却される。一方、冷却器室１３１内の空気を冷却した低温低圧の気液二相冷媒は、冷却器室１３１内の空気によって加熱されて蒸発し、低圧のガス状冷媒となって再び圧縮機１２に吸入され、圧縮される。   In the refrigerator 1 configured as described above, the high-temperature and high-pressure gas refrigerant sent out by the compressor 12 arranged in the machine room 1A is condensed through a refrigerant pipe (for example, a condensation pipe) 725 to be low-temperature and high-pressure. The low-temperature and high-pressure liquid refrigerant is reduced to a low-temperature and low-pressure gas-liquid two-phase refrigerant by the decompression device and reaches a cooler 13, for example, at a low temperature of −20 ° C. or lower. The low-temperature and low-pressure gas-liquid two-phase refrigerant cools the air in the cooler chamber 131, and the cooled air is supplied to each storage room such as the refrigerator compartment 2, the freezer compartment 6, and the vegetable compartment 5 by the cool air circulation fan 14. By supplying, storage rooms (or stored items stored in these storage rooms) such as the refrigerator compartment 2, the freezer compartment 6, and the vegetable compartment 5 are cooled. On the other hand, the low-temperature and low-pressure gas-liquid two-phase refrigerant that has cooled the air in the cooler chamber 131 is heated and evaporated by the air in the cooler chamber 131 and becomes a low-pressure gaseous refrigerant and is again sucked into the compressor 12. And compressed.

以上のように、本実施の形態の冷蔵庫１においては、外箱７１０及び内箱７５０の間に形成された空間３１５と開閉扉の扉内部空間との内部容積の合計容積に対する真空断熱材４００の占める割合である真空断熱材の充填率を所定値（たとえば４０％〜８０％）としている。このため、断熱箱体７００の壁内厚さ（たとえば外箱７１０と内箱７５０間の距離（厚さ）、あるいは、開閉扉の厚さ）を従来よりも薄くしても断熱性能を確保できる。したがって、本実施の形態の冷蔵庫１においては、断熱箱体７００の断熱性能が向上しているため、複数の貯蔵室２、３、４、５、６内の冷気や収納物が暖まりにくいので、冷却のための圧縮機１２の運転時間を短くできたりファンの風量を小さくできる。したがって、貯蔵室２、３、４、５、６内の冷却に必要な空気（冷気）の風量を小さく抑えることができ、圧縮機１２の回転数を下げたり運転ＯＦＦ時間を長くしたりできるので省エネルギーな運転が可能となる。このため、本実施の形態の冷蔵庫１では、従来に比べて省エネルギー化することができる。また、冷蔵庫１は、外形サイズを変更せずに貯蔵室容積（庫内容積）を従来よりも拡大でき、貯蔵室内に貯蔵できる収納物を従来よりも増やすことができるので、使い勝手の良い冷蔵庫、機器が得られる。   As described above, in the refrigerator 1 of the present embodiment, the vacuum heat insulating material 400 has a total volume of the internal volume of the space 315 formed between the outer box 710 and the inner box 750 and the door inner space of the door. The filling rate of the vacuum heat insulating material, which is the ratio occupied, is set to a predetermined value (for example, 40% to 80%). For this reason, even if the inner wall thickness of the heat insulation box 700 (for example, the distance (thickness) between the outer box 710 and the inner box 750, or the thickness of the opening / closing door) is made thinner than before, heat insulation performance can be secured. . Therefore, in the refrigerator 1 of the present embodiment, since the heat insulating performance of the heat insulating box 700 is improved, the cold air and the stored items in the plurality of storage chambers 2, 3, 4, 5, 6 are not easily heated. The operation time of the compressor 12 for cooling can be shortened, or the air volume of the fan can be reduced. Therefore, the amount of air (cold air) necessary for cooling the storage chambers 2, 3, 4, 5, 6 can be kept small, and the rotation speed of the compressor 12 can be reduced and the operation OFF time can be lengthened. Energy-saving operation is possible. For this reason, in the refrigerator 1 of this Embodiment, it can save energy compared with the past. Moreover, since the refrigerator 1 can expand a storage chamber volume (volume in a store | warehouse | chamber) rather than before, without changing an external size, and can increase the storing thing which can be stored in a storage chamber rather than before, the refrigerator which is easy to use, Equipment is obtained.

また、最も外気との温度差の大きい冷凍室６を上下方向の略中央位置に配置すれば、上面及び下面よりの冷凍室６への外気からの熱進入を抑制できるので、外気から冷凍室６に熱が侵入する熱進入面を４面（前面の開閉扉、左側面、右側面、背面の４面）にすることができる。このため、省エネルギーな冷蔵庫１を得ることができる。   In addition, if the freezer compartment 6 having the largest temperature difference from the outside air is arranged at a substantially central position in the vertical direction, heat entry from outside air to the freezer compartment 6 from the upper surface and the lower surface can be suppressed. The heat entry surface through which heat enters can be made into four surfaces (front open / close door, left side surface, right side surface, and back surface four surfaces). For this reason, the energy-saving refrigerator 1 can be obtained.

また、本実施の形態によれば、空間３１５及び扉内部空間に充填される硬質ウレタンフォームの曲げ弾性率を１５．０ＭＰａ以上としているので、断熱箱体７００の箱体強度が所定の強度を満足でき、したがって収納物の重量による歪みに耐え切れず断熱箱体７００が変形することを抑制できる。このため、断熱箱体７００が歪んで前面の開閉扉が傾いてしまうことを抑制でき、外観の悪化を防ぐことができる。また、開閉扉と断熱箱体の前面開口部との間をシールするシール部材の位置がずれて隙間が発生し、冷蔵室２、冷凍室６、野菜室５、製氷室３、切替室４内の空気（冷気）が断熱箱体７００や冷蔵庫１の外部へ漏れ出ることを抑制できるので、より省エネルギーな冷蔵庫や機器を得ることができる。   Further, according to the present embodiment, since the flexural modulus of the rigid urethane foam filled in the space 315 and the door internal space is set to 15.0 MPa or more, the box strength of the heat insulating box 700 satisfies a predetermined strength. Therefore, the heat insulation box 700 can be prevented from being deformed without being able to withstand the distortion due to the weight of the stored item. For this reason, it can suppress that the heat insulation box 700 is distorted, and the front opening / closing door inclines, and can prevent the deterioration of an external appearance. Moreover, the position of the sealing member that seals between the opening and closing door and the front opening of the heat insulation box is shifted to generate a gap, and the inside of the refrigerator compartment 2, the freezer compartment 6, the vegetable compartment 5, the ice making compartment 3, and the switching compartment 4 is generated. Since it can suppress that the air (cold air) leaks out of the heat insulation box 700 and the refrigerator 1, a more energy-saving refrigerator and apparatus can be obtained.

なお、空間３１５、あるいは扉内部空間内における真空断熱材４００の充填率の分布については、外気と各貯蔵室との温度差に応じて、空間３１５、あるいは扉内部空間内において、所定の位置毎に真空断熱材４００の充填率を変更してもよい。   Note that the distribution of the filling rate of the vacuum heat insulating material 400 in the space 315 or the interior space of the door is determined for each predetermined position in the space 315 or the interior space of the door according to the temperature difference between the outside air and each storage chamber. The filling rate of the vacuum heat insulating material 400 may be changed.

例えば、低温室である冷凍室６（あるいは製氷室３、切替室４）は、貯蔵室内の温度と外気との温度差が最も大きくなる。このため、冷凍室６と対向する範囲にある断熱箱体７００の左側面、右側面、背面及び前面（開閉扉）における真空断熱材４００の充填率を他の貯蔵室（たとえば高温室である冷蔵室２、野菜室５）と対向する範囲の壁面（たとえば左側面、右側面、背面及び前面（開閉扉））よりも大きくしてもよい（例えば６０％以上）。このように構成することにより、最も温度の低い低温室である冷凍室６への熱侵入を抑制でき、より省エネルギーな冷蔵庫１、機器を提供できる。   For example, in the freezing room 6 (or the ice making room 3 and the switching room 4) which is a low temperature room, the temperature difference between the temperature in the storage room and the outside air becomes the largest. For this reason, the filling rate of the vacuum heat insulating material 400 in the left side surface, the right side surface, the back surface, and the front surface (opening / closing door) of the heat insulating box 700 in the range facing the freezer compartment 6 is set to another storage chamber (for example, a refrigerator that is a high temperature chamber). You may make it larger (for example, 60% or more) than the wall surface (For example, the left side surface, the right side surface, the back surface, and the front surface (opening door)) of the range which opposes the chamber 2 and the vegetable chamber 5). By comprising in this way, the heat | fever penetration | invasion to the freezer compartment 6 which is a cold room with the lowest temperature can be suppressed, and the more energy-saving refrigerator 1 and apparatus can be provided.

また例えば、外気温度が例えば３０℃の時、機械室１Ａ内は例えば４０℃以上となり、制御基板室３１も例えば４０℃以上まで温度が上昇する。つまり、機械室１Ａ及び制御基板室３１と対向する位置の貯蔵室との間の壁面や仕切壁２４は、他の部分の壁面や仕切壁２４と比べて貯蔵室内との温度差が大きくなる。このため、機械室１Ａ、制御基板室３１の近傍に配置された貯蔵室には熱が侵入しやすくなる。このため、機械室１Ａ、あるいは制御基板室３１と貯蔵室との間に配置される壁面や仕切壁２４においては真空断熱材４００の充填率を他の壁面や仕切壁２４よりも大きくして断熱性能を向上させても良い。例えば機械室１Ａ、あるいは制御基板室３１と貯蔵室との間に配置される壁面や仕切壁２４においては真空断熱材４００の充填率を６０％以上（真空断熱材４００の側背面被覆率を７０％以上）にして、他の壁面や仕切壁２４の真空断熱材４００の充填率を４０％以上（９０％以下）にすれば良い。このように構成することにより、温度の高い機械室１Ａや制御基板室から近傍の貯蔵室へ熱が侵入することを抑制でき、冷蔵庫１をより省エネルギー化できる。   For example, when the outside air temperature is, for example, 30 ° C., the inside of the machine room 1A is, for example, 40 ° C. or higher, and the temperature of the control board chamber 31 is increased to, for example, 40 ° C. or higher. That is, the wall surface and partition wall 24 between the machine room 1 </ b> A and the storage chamber at a position facing the control substrate chamber 31 have a larger temperature difference from the storage chamber than the wall surface and partition wall 24 of other parts. For this reason, heat easily enters the storage chamber arranged in the vicinity of the machine room 1A and the control board chamber 31. For this reason, in the wall surface or partition wall 24 arranged between the machine room 1A or the control board chamber 31 and the storage chamber, the vacuum insulating material 400 is made to have a higher filling rate than other wall surfaces or partition walls 24 to insulate. The performance may be improved. For example, the filling rate of the vacuum heat insulating material 400 is 60% or more in the machine room 1A or the wall surface or the partition wall 24 arranged between the control substrate room 31 and the storage room (the side rear surface coverage of the vacuum heat insulating material 400 is 70%). % Or more), and the filling rate of the vacuum heat insulating material 400 on the other wall surface or partition wall 24 may be 40% or more (90% or less). By comprising in this way, it can suppress that a heat | fever penetrate | invades from the high temperature machine room 1A and a control board room | chamber interior to the storage room of the vicinity, and can make the refrigerator 1 energy-saving more.

本実施の形態に係る断熱箱体７００は、例えば、水を加熱する加熱装置、及び該加熱装置で加熱された水を貯留するタンクを備えた貯湯装置にも用いることもできる。断熱箱体７００の内部にタンクを配設することにより、従来よりも外形サイズの小さな断熱箱体７００によってタンクを断熱することができ、貯湯装置を省スペース化することができる。また、本実施の形態は、真空断熱材を備えた断熱壁を有する機器（たとえば、冷蔵庫、ショーケース、冷凍機、給湯装置、ジャーポット、空調装置など）であれば適用可能である。   The heat insulation box 700 according to the present embodiment can also be used in, for example, a heating device that heats water and a hot water storage device that includes a tank that stores water heated by the heating device. By disposing the tank inside the heat insulation box 700, the tank can be insulated by the heat insulation box 700 having a smaller outer size than the conventional one, and the hot water storage device can be saved. Moreover, this Embodiment is applicable if it is an apparatus (For example, a refrigerator, a showcase, a refrigerator, a hot water supply apparatus, a jar pot, an air conditioner etc.) which has the heat insulation wall provided with the vacuum heat insulating material.

本発明の実施の形態では、真空断熱材４００に凹凸などを設ける必要がなく、外包材内に封入する芯材を外包材の凹凸形状に沿った形状にする必要もないので、真空断熱材４００に平板状のものを使用可能なので、芯材に流動性を有する粒状のものを使用する必要がなく、ガラス繊維などの無機繊維や有機繊維などの繊維系芯材を使用可能であり、しかも外包材に凹凸を設けるなどの複雑な加工が不要となるため、低コストで取り扱い性が良好で断熱性能が向上する断熱箱体、冷蔵庫、機器が得られる。
ここで、本実施の形態では、第３の介在部材は第１の介在部材と同じであってもよい。また、第２の介在部材も第１の介在部材と同じであっても良い。 In the embodiment of the present invention, it is not necessary to provide unevenness or the like in the vacuum heat insulating material 400, and it is not necessary to make the core material enclosed in the outer packaging material into a shape along the uneven shape of the outer packaging material. It is not necessary to use a granular material with fluidity as the core material, and it is possible to use fiber-based core materials such as glass fibers and other inorganic fibers and organic fibers, and the outer packaging. Since complicated processing such as providing unevenness on the material is not required, a heat insulating box, a refrigerator, and a device that can be handled at low cost and have improved heat insulating performance can be obtained.
Here, in the present embodiment, the third interposed member may be the same as the first interposed member. Further, the second interposed member may be the same as the first interposed member.

（実施形態が奏する効果）
以上説明したように、本実施の形態では、外箱７１０と内箱７５０とから形成され、少なくとも側壁７９０、背面壁７３０を有し、前面に開口部を有する断熱箱体７００において、背面壁７３０と側壁７９０とのコーナー部に形成され、背面壁７３０に対して前面開口部側に突出する凸部４５０と、背面壁７３０を形成する内箱７５０に形成され、凸部４５０に対して前面側から見て後方側に凹んだ凹部４４０（第２の凹部４４１であっても良い）と、少なくとも背面壁７３０を形成する内箱７５０と外箱７１０との間に設けられ、凹部４４０と対向する位置の内箱７５０と外箱７１０との間に配置され、少なくとも幅方向（又は長さ方向）において凹部４４０の幅（図８では凹部４４０の範囲Ｗで表示）よりも大きな平板状の真空断熱材４００と、を備え、凸部４５０は、真空断熱材４００と所定長さＸだけ重なるように形成されており、真空断熱材４００と凹部４４０を形成する内箱７５０との間、及び真空断熱材４００と凸部４５０を形成する内箱７５０との間に介在部材として接着剤を充填するようにすれば、真空断熱材４００と内箱７５０との間の接着剤の厚さが小さくなったとしても凸部４５０が真空断熱材４００と長さＸだけ重なっているため重なった長さＸ分だけ接着剤（たとえば発泡断熱材である硬質ウレタンフォーム）の接着厚さが増え、真空断熱材４００が凸部４５０内の接着剤を介して凹部４４０を形成する内箱７５０（あるいは外箱７１０）と強固に接着できる。また、凹部４４０を形成する内箱７５０と側壁７９０を形成する内箱７５０も凸部４５０を介して強固に接着できる。したがって、凹部４４０における真空断熱材４００と内箱７５０との間の接着剤の厚さを薄くしても接着剤厚さの大きな凸部４５０を介して凹部４４０、真空断熱材４００、側壁７９０が一体に形成されるので、真空断熱材が配設される凹部４４０の壁厚さを薄くでき、しかも箱体あるいは壁の強度を向上させることができる。 (Effects of the embodiment)
As described above, in the present embodiment, the rear wall 730 is formed of the outer box 710 and the inner box 750, has at least the side wall 790 and the rear wall 730, and has the opening on the front surface. And a side wall 790 formed at a corner portion, and a convex portion 450 projecting toward the front opening side with respect to the back wall 730, and an inner box 750 forming the back wall 730, and on the front side with respect to the convex portion 450 Is provided between the inner box 750 and the outer box 710 that form at least the back wall 730, and is opposed to the recess 440. The plate-like vacuum heat insulation that is disposed between the inner box 750 and the outer box 710 at a position and is at least in the width direction (or length direction) larger than the width of the recess 440 (indicated by the range W of the recess 440 in FIG. 8). Material 4 The convex portion 450 is formed so as to overlap the vacuum heat insulating material 400 by a predetermined length X, and between the vacuum heat insulating material 400 and the inner box 750 forming the concave portion 440, and the vacuum heat insulating material. If the adhesive is filled as an interposed member between 400 and the inner box 750 forming the convex portion 450, the thickness of the adhesive between the vacuum heat insulating material 400 and the inner box 750 is reduced. Since the convex portion 450 overlaps the vacuum heat insulating material 400 by the length X, the adhesive thickness of the adhesive (for example, hard urethane foam which is a foam heat insulating material) increases by the overlapped length X, and the vacuum heat insulating material 400 is It can be firmly bonded to the inner box 750 (or the outer box 710) forming the concave portion 440 via the adhesive in the convex portion 450. In addition, the inner box 750 that forms the concave portion 440 and the inner box 750 that forms the side wall 790 can be firmly bonded via the convex portion 450. Therefore, even if the thickness of the adhesive between the vacuum heat insulating material 400 and the inner box 750 in the concave portion 440 is reduced, the concave portion 440, the vacuum heat insulating material 400, and the side wall 790 are formed via the convex portion 450 having a large adhesive thickness. Since they are integrally formed, the wall thickness of the recess 440 in which the vacuum heat insulating material is disposed can be reduced, and the strength of the box or the wall can be improved.

ここで、介在部材である接着剤として、自己接着性を有する発泡断熱材である硬質ウレタンフォームを使用すれば、真空断熱材４００と内箱７５０との間の硬質ウレタンフォームの厚さを所定である１１ｍｍ以下（厚さのばらつきや真空断熱材４００の表面の凹凸等を考慮すると１０ｍｍ未満が良い）に薄く設定したとしても凸部４５０が真空断熱材４００と長さＸだけ重なっているため重なった長さＸ分だけ真空断熱材４００と内箱７５０との間の硬質ウレタンフォームの厚さを大きくすることができ、真空断熱材４００が凸部４５０内の硬質ウレタンフォームを介して内箱７５０（あるいは外箱７１０）と強固に接着できる。また、凹部４４０と対向する位置の真空断熱材４００と内箱７５０との間の硬質ウレタンフォームの厚さを薄くしても凹部４４０と対向する位置の真空断熱材４００が凸部４５０内の硬質ウレタンフォームを介して側壁７９０と一体に形成されるので、凹部４４０が形成される部分の壁厚さを薄くしても箱体強度あるいは壁の強度を向上させることができる。   Here, if a hard urethane foam, which is a foam heat insulating material having self-adhesive properties, is used as the adhesive that is the interposition member, the thickness of the hard urethane foam between the vacuum heat insulating material 400 and the inner box 750 is set to a predetermined value. Even if the thickness is set to be 11 mm or less (less than 10 mm is preferable in consideration of thickness variation and unevenness of the surface of the vacuum heat insulating material 400, etc.), the convex portion 450 overlaps with the vacuum heat insulating material 400 by the length X, thereby overlapping. The thickness of the hard urethane foam between the vacuum heat insulating material 400 and the inner box 750 can be increased by the length X, and the vacuum heat insulating material 400 is inserted into the inner box 750 via the hard urethane foam in the convex portion 450. (Or outer box 710). Further, even if the thickness of the rigid urethane foam between the vacuum heat insulating material 400 and the inner box 750 facing the concave portion 440 is reduced, the vacuum heat insulating material 400 facing the concave portion 440 is hard in the convex portion 450. Since it is formed integrally with the side wall 790 via the urethane foam, the box strength or the wall strength can be improved even if the wall thickness of the portion where the recess 440 is formed is reduced.

また、外箱７１０と内箱７５０とから形成され、背面壁７３０の周囲に少なくとも１つの周囲壁（たとえば側壁７９０、天井壁７４０、底面壁７８０、仕切壁２４）を有し、前面に開口部有する断熱箱体７００において、背面壁７３０は、周囲壁とのコーナー部に形成された凸部４５０と、凸部４５０に対して前面側から見て後方側に凹んだ凹部４４０（あるいは第２の凹部４４１）と、を有し、凹部４４０（あるいは第２の凹部４４１）と対向する位置の内箱７５０と外箱７１０との間に配置され、少なくとも幅方向あるいは長さ方向において凹部の幅Ｐ（凹部の範囲W）よりも大きな平板状の真空断熱材４００と、を備え、凸部４５０は、真空断熱材４００と所定長さＸだけ重なるように形成されており、
凹部４４０と対向する位置の内箱７５０と真空断熱材４００との間、及び凸部４５０と対向する位置の内箱７５０と真空断熱材４００との間に介在部材として接着剤を充填すれば、真空断熱材４００と内箱７５０との間の接着剤の厚さが小さくなったとしても凸部４５０が真空断熱材４００と長さＸだけ重なっているため重なった長さＸ分だけ接着剤（たとえば発泡断熱材である硬質ウレタンフォーム）の接着厚さが増え、真空断熱材４００が凸部４５０内の接着剤を介して凹部４４０を形成する内箱７５０（あるいは外箱７１０）と強固に接着できる。また、凹部４４０を形成する内箱７５０と少なくとも１つの周囲壁（たとえば側壁７９０、天井壁７４０、底面壁７８０、仕切壁２４）も凸部４５０を介して強固に接着できる。したがって、凹部４４０における真空断熱材４００と内箱７５０との間の接着剤の厚さを薄くしても介在部材厚さ（接着剤厚さ）の大きな凸部を介して凹部４４０、真空断熱材４００、少なくとも１つの周囲壁（たとえば側壁７９０、天井壁７４０、底面壁７８０、仕切壁２４）が一体に形成されるので、真空断熱材が配設される凹部４４０の壁厚さを薄くでき、しかも箱体あるいは壁の強度を向上させることができる。 Further, it is formed of an outer box 710 and an inner box 750, has at least one peripheral wall (for example, a side wall 790, a ceiling wall 740, a bottom wall 780, a partition wall 24) around the back wall 730, and has an opening on the front surface. In the heat insulation box 700 having the back wall 730, the back wall 730 includes a convex portion 450 formed at a corner portion with the surrounding wall, and a concave portion 440 (or a second concave portion dent recessed rearward when viewed from the front side with respect to the convex portion 450). A recess 441) between the inner box 750 and the outer box 710 at a position facing the recess 440 (or the second recess 441), and at least the width P of the recess in the width direction or the length direction. A flat vacuum heat insulating material 400 larger than (the range W of the concave portion), and the convex portion 450 is formed to overlap the vacuum heat insulating material 400 by a predetermined length X,
If an adhesive is filled between the inner box 750 and the vacuum heat insulating material 400 at a position facing the concave portion 440 and between the inner box 750 and the vacuum heat insulating material 400 at a position facing the convex portion 450, Even if the thickness of the adhesive between the vacuum heat insulating material 400 and the inner box 750 is reduced, the convex portion 450 is overlapped with the vacuum heat insulating material 400 by the length X. For example, the adhesive thickness of the hard urethane foam, which is a foam heat insulating material, is increased, and the vacuum heat insulating material 400 is firmly bonded to the inner box 750 (or outer box 710) that forms the concave portion 440 through the adhesive in the convex portion 450. it can. Further, the inner box 750 that forms the recess 440 and at least one peripheral wall (for example, the side wall 790, the ceiling wall 740, the bottom wall 780, and the partition wall 24) can be firmly bonded via the projection 450. Therefore, even if the thickness of the adhesive between the vacuum heat insulating material 400 and the inner box 750 in the concave portion 440 is reduced, the concave portion 440 and the vacuum heat insulating material are interposed via the convex portion having a large interposition member thickness (adhesive thickness). 400, since at least one peripheral wall (for example, the side wall 790, the ceiling wall 740, the bottom wall 780, the partition wall 24) is integrally formed, the wall thickness of the recess 440 in which the vacuum heat insulating material is disposed can be reduced, Moreover, the strength of the box or the wall can be improved.

また、周囲壁が、背面壁７３０と接続されて室（たとえば貯蔵室）を形成する側壁７９０、天井壁７４０、底面壁７８０、仕切壁２４のいずれかであれば、凹部４４０における真空断熱材４００と内箱７５０との間の介在部材である接着剤の厚さを薄くしても凹部４４０に配置される真空断熱材４００が凸部の介在部材（接着剤）を介して少なくとも１つの周囲壁（たとえば側壁７９０、天井壁７４０、底面壁７８０、仕切壁２４）と一体に形成されるので、凹部が形成される部分の壁厚さを薄くしても、箱体あるいは壁の強度を向上させることができる。また、介在部材（接着剤）として硬質ウレタンフォームを使用すれば、所定の断熱性能も得ることができる。   Further, if the peripheral wall is any of the side wall 790, the ceiling wall 740, the bottom wall 780, and the partition wall 24 that are connected to the back wall 730 to form a chamber (for example, a storage chamber), the vacuum heat insulating material 400 in the recess 440 is used. Even if the thickness of the adhesive, which is an interposed member between the inner box 750 and the inner box 750, is reduced, the vacuum heat insulating material 400 disposed in the concave portion 440 has at least one peripheral wall through the convex interposed member (adhesive). (For example, the side wall 790, the ceiling wall 740, the bottom wall 780, and the partition wall 24) are formed integrally, so that the strength of the box or the wall is improved even if the wall thickness of the portion where the recess is formed is reduced. be able to. Moreover, if a rigid urethane foam is used as an interposition member (adhesive), predetermined heat insulation performance can also be obtained.

また、介在部材（接着剤）として、充填前は流動性のある液体状あるいは二相状態であり、充填後は発泡して接着剤として機能する自己接着性を有する発泡断熱材を使用すれば、凹部４４０における真空断熱材４００と内箱７５０との間のすきまを小さくしても、液体状態あるいは二相状態で狭いすきまに流入させることができるので、介在部材（接着剤）をまんべんなく充填することができ、接着強度あるいは固定強度を確保できる。したがって壁厚さを薄くしても箱体の強度を確保できる。また、断熱材としても機能するため、断熱性能も向上する。   Moreover, as an interposition member (adhesive), before filling, it is in a liquid or two-phase state with fluidity, and after filling, if a foam heat insulating material having a self-adhesive function that foams and functions as an adhesive is used, Even if the gap between the vacuum heat insulating material 400 and the inner box 750 in the concave portion 440 is made small, it can flow into the narrow gap in the liquid state or the two-phase state, so that the intervening member (adhesive) is filled evenly. It is possible to secure adhesive strength or fixing strength. Therefore, the strength of the box can be secured even if the wall thickness is reduced. Moreover, since it functions also as a heat insulating material, heat insulation performance is also improved.

また、介在部材として接着剤を使用する場合、接着剤が発泡断熱材である硬質ウレタンフォームであれば、ウレタンの厚さの薄くなる部分（例えば凹部４４０など真空断熱材４００が配置されている壁）では、断熱材としての効果が小さくなるが、本実施の形態のように介在部材である硬質ウレタンフォームを接着剤として使用すればよい。また、ウレタンの厚さを厚く確保できる部分（たとえば真空断熱材４００が配置されていない壁など）は、断熱材としての効果が得られるため、断熱材として使用できるので、箱体の強度と断熱性能の両方を確保でき、高性能で信頼性の高い断熱箱体、冷蔵庫、機器などが得られる。また、硬質ウレタンフォームには、他の断熱材料にはない自己接着性という優れた特長があるため、他の接着剤を使わなくとも、対象物（内箱７５０、真空断熱材４００、外箱７１０）の表面に直接発泡することにより、対象物に強く接着した断熱層を形成することができ、接着性と断熱性の両方を得ることができる。   Further, when an adhesive is used as the interposition member, if the adhesive is a hard urethane foam that is a foam heat insulating material, the portion where the thickness of the urethane becomes thin (for example, the wall on which the vacuum heat insulating material 400 such as the recess 440 is disposed) ), The effect as a heat insulating material is reduced, but a hard urethane foam as an interposition member may be used as an adhesive as in the present embodiment. Moreover, since the effect (as a heat insulating material etc.) part which can ensure the thickness of urethane thick (for example, the wall where the vacuum heat insulating material 400 is not arrange | positioned) can be used as a heat insulating material, the intensity | strength of a box and heat insulation are obtained. Both performance can be secured, and high performance and highly reliable heat insulation box, refrigerator, equipment, etc. can be obtained. In addition, since rigid urethane foam has an excellent feature of self-adhesiveness not found in other heat insulating materials, the object (inner box 750, vacuum heat insulating material 400, outer box 710) can be used without using other adhesives. ) Directly on the surface, a heat insulating layer strongly adhered to the object can be formed, and both adhesiveness and heat insulating properties can be obtained.

また、真空断熱材４００と内箱７５０との間に充填される介在部材である接着剤の厚さを、真空断熱材４００の厚さよりも小さくしても、真空断熱材４００で壁強度、あるいは箱体強度を確保できるので、真空断熱材４００を備えた壁の壁厚さを薄くできる。   Further, even if the thickness of the adhesive, which is an interposed member filled between the vacuum heat insulating material 400 and the inner box 750, is smaller than the thickness of the vacuum heat insulating material 400, Since the box strength can be secured, the wall thickness of the wall provided with the vacuum heat insulating material 400 can be reduced.

また、凹部４４０と対向する位置の内箱７５０と真空断熱材４００との間に充填される介在部材である接着剤（たとえば硬質ウレタンフォーム）の厚さを１１ｍｍ以下に設定すれば、硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。
また、背面壁７３０と、側壁７９０と、上面壁２４（あるいは天井壁７４０）と、下面壁２４（あるいは底面壁７８０）と、から形成され、前面が開口した断熱箱体において、背面壁７３０の内面を形成する内箱７５０と背面壁７３０の外面を形成する外箱７１０との間、あるいは、側壁７９０の内面を形成する内箱７５０と側壁７９０の外面を形成する外箱７１０との間、に設けられた真空断熱材４００と、真空断熱材４００と内箱７５０の間に充填あるいは封入あるいは塗布あるいは設けられ、真空断熱材４００と内箱７５０を接着あるいは固着あるいは固定する介在部材と、を備え、介在部材がウレタンフォームであり、介在部材の厚さが１１ｍｍ以下であるようにしたので、ウレタンフォームの曲げ弾性率を大きくすることができるため、ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。 Moreover, if the thickness of the adhesive (for example, hard urethane foam) which is an interposed member filled between the inner box 750 at the position facing the recess 440 and the vacuum heat insulating material 400 is set to 11 mm or less, the hard urethane foam Therefore, even if the thickness of the rigid urethane foam is reduced, the strength can be improved. Therefore, the box strength can be improved even if the wall thickness is reduced.
Further, in the heat insulation box formed from the back wall 730, the side wall 790, the top wall 24 (or the ceiling wall 740), and the bottom wall 24 (or the bottom wall 780), the front wall is opened. Between the inner box 750 forming the inner surface and the outer box 710 forming the outer surface of the back wall 730, or between the inner box 750 forming the inner surface of the side wall 790 and the outer box 710 forming the outer surface of the side wall 790, And an interposition member that is filled, enclosed, applied, or provided between the vacuum heat insulating material 400 and the inner box 750, and that adheres, fixes, or fixes the vacuum heat insulating material 400 and the inner box 750. Since the interposed member is urethane foam and the thickness of the interposed member is 11 mm or less, the bending elastic modulus of the urethane foam can be increased. Because, it is the thickness of the urethane foam to improve the strength becomes smaller. Therefore, the box strength can be improved even if the wall thickness is reduced.

また、介在部材（接着剤）として自己接着性を有する硬質ウレタンフォームを使用し、〔（介在部材の厚さ）／（介在部材の厚さ＋真空断熱材の厚さ）〕を０．３以下に設定すれば、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、壁厚さを小さくしても断熱性能を向上させることができる。   In addition, a rigid urethane foam having self-adhesive properties is used as the intervening member (adhesive), and [(the thickness of the intervening member) / (the thickness of the interposing member + the thickness of the vacuum heat insulating material)] is 0.3 or less. If set to, the composite thermal conductivity of the wall formed from the composite member provided with the vacuum heat insulating material 400 and the rigid urethane foam can be reduced, so that the heat insulation performance can be improved even if the wall thickness is reduced.

また、真空断熱材４００と外箱７１０との間は、ホットメルトあるいは両面テープなどの発泡断熱材以外の第２の介在部材である第２の接着剤で直接接着し、凹部４４０（あるいは第２の凹部４４１）と対向する位置の内箱７５０と真空断熱材４００との間に充填される第１の介在部材である接着剤（たとえば硬質ウレタンフォーム）の厚さを１１ｍｍ以下であって、第１の介在部材の厚さ／（第１の介在部材の厚さ＋真空断熱材の厚さ）を０．３以下に設定すれば、真空断熱材４００を外箱７１０に第２の介在部材である第２の接着剤で直接接着した後に、真空断熱材４００と内箱７５０との間に第１の介在部材である接着剤を充填すればよくなるので、組立性が改善する。また、外箱７１０と真空断熱材４００との間には、ホットメルトあるいは両面テープなどの発泡断熱材以外の第２の接着剤で直接接着すれば、壁厚さを低減できる。また、第１の介在部材である硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。また、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、壁厚さを小さくしても断熱性能を向上させることができる。   Further, the vacuum heat insulating material 400 and the outer box 710 are directly bonded with a second adhesive which is a second intervening member other than the foam heat insulating material such as hot melt or double-sided tape, and the concave portion 440 (or the second material). The thickness of the adhesive (for example, hard urethane foam) which is the first interposition member filled between the inner box 750 and the vacuum heat insulating material 400 at a position facing the concave portion 441) is 11 mm or less, If the thickness of the intervening member 1 / (thickness of the first interposing member + the thickness of the vacuum heat insulating material) is set to 0.3 or less, the vacuum insulating material 400 is attached to the outer box 710 with the second interposing member. After directly bonding with a certain second adhesive, it is only necessary to fill the adhesive as the first interposed member between the vacuum heat insulating material 400 and the inner box 750, so that the assemblability is improved. Further, if the outer box 710 and the vacuum heat insulating material 400 are directly bonded with a second adhesive other than the foam heat insulating material such as hot melt or double-sided tape, the wall thickness can be reduced. Moreover, since the bending elastic modulus of the hard urethane foam which is the first interposition member can be increased, the strength can be improved even if the thickness of the hard urethane foam is reduced. Therefore, the box strength can be improved even if the wall thickness is reduced. Moreover, since the composite heat conductivity of the wall formed from the composite member provided with the vacuum heat insulating material 400 and the rigid urethane foam can be reduced, the heat insulation performance can be improved even if the wall thickness is reduced.

また、真空断熱材４００は、少なくとも背面壁７３０に配置され、背面壁７３０と側壁７９０の表面積に対する背面壁７３０と側壁７９０に配置される真空断熱材４００の配置面積の比率を７０％以上にすれば、箱体強度が向上し、箱体の変形量を低減できる。したがって、高強度で信頼性の高い断熱箱体、冷蔵庫、給湯機、機器などが得られる。
すなわち、真空断熱材４００は、少なくとも背面壁７３０に配置され、背面壁７３０あるいは側壁７９０に配置された真空断熱材４００の背面壁７３０あるいは側壁７９０への投影面積の合計が、背面壁７３０と側壁７９０を合わせた合計表面積に対して７０％以上の割合となるように真空断熱材４００を配置したので、箱体強度が向上し、箱体の変形量を低減できる。したがって、高強度で信頼性の高い断熱箱体、冷蔵庫、給湯機、機器などが得られる。 Further, the vacuum heat insulating material 400 is disposed at least on the back wall 730, and the ratio of the arrangement area of the vacuum heat insulating material 400 disposed on the back wall 730 and the side wall 790 to the surface area of the back wall 730 and the side wall 790 is set to 70% or more. As a result, the box strength is improved and the deformation amount of the box can be reduced. Therefore, a heat-insulating box body, a refrigerator, a water heater, equipment, etc. with high strength and high reliability can be obtained.
That is, the vacuum heat insulating material 400 is disposed on at least the back wall 730, and the total projected area of the vacuum heat insulating material 400 disposed on the back wall 730 or the side wall 790 on the back wall 730 or the side wall 790 is equal to the back wall 730 and the side wall. Since the vacuum heat insulating material 400 is disposed so as to have a ratio of 70% or more with respect to the total surface area including 790, the box strength is improved and the deformation amount of the box can be reduced. Therefore, a heat-insulating box body, a refrigerator, a water heater, equipment, etc. with high strength and high reliability can be obtained.

また、外箱７１０と内箱７５０とを有した断熱箱体７００において、外箱７１０と内箱７５０との間に形成される空間３１５の容積に対する真空断熱材４００の占める容積が４０％以上にすれば、箱体強度が向上し、箱体の変形量を低減できる。したがって、高強度で信頼性の高い断熱箱体、冷蔵庫、給湯機、機器などが得られる。   Further, in the heat insulating box 700 having the outer box 710 and the inner box 750, the volume occupied by the vacuum heat insulating material 400 with respect to the volume of the space 315 formed between the outer box 710 and the inner box 750 is 40% or more. If it does so, box strength will improve and the amount of deformation of a box can be reduced. Therefore, a heat-insulating box body, a refrigerator, a water heater, equipment, etc. with high strength and high reliability can be obtained.

また、側壁７９０と背面壁７３０とのコーナー部に凸部４５０を設けて外箱７１０と内箱７５０との間に真空断熱材４００を配置したことにより箱体強度が向上するため、真空断熱材４００に凹凸などを設ける必要がなく、また、外包材内に封入する芯材を凹凸形状に形成する必要もないので、真空断熱材４００に平板状のものを使用可能であるため、真空断熱材４００の芯材として、有機繊維または無機繊維などの繊維径芯材を使用可能であり、したがって、真空断熱材４００の芯材として、有機繊維または無機繊維などの繊維径芯材を使用可能なので、芯材に流動性を有する粒状のものを使用して凹凸などの複雑な形状に形成する必要がなく、しかも外包材も凹凸を設けるなどの複雑な加工が不要となるため、低コストで取り扱い性が良好で断熱性能が向上する断熱箱体、冷蔵庫、機器が得られる。
また、外箱７１０と内箱７５０との間に真空断熱材４００を配置し、真空断熱材４００と内箱７５０との間の介在部材である硬質ウレタンフォームの厚さを１１ｍｍ以下（好ましくは１０ｍｍより小さく）したことにより箱体強度が向上するため、真空断熱材４００に凹凸などを設ける必要がなく、また、外包材内に封入する芯材を凹凸形状に形成する必要もないので、真空断熱材４００に平板状のものを使用可能であるため、真空断熱材４００の芯材として、有機繊維または無機繊維などの繊維径芯材を使用可能であり、したがって、真空断熱材４００の芯材として、有機繊維または無機繊維などの繊維径芯材を使用可能なので、芯材に流動性を有する粒状のものを使用して凹凸などの複雑な形状に形成する必要がなく、しかも外包材も凹凸を設けるなどの複雑な加工が不要となるため、低コストで取り扱い性が良好で断熱性能が向上する断熱箱体、冷蔵庫、機器が得られる。 Moreover, since the convex part 450 is provided in the corner part of the side wall 790 and the back wall 730 and the vacuum heat insulating material 400 is disposed between the outer box 710 and the inner box 750, the box strength is improved. Since it is not necessary to provide irregularities or the like in 400, and it is not necessary to form the core material enclosed in the outer packaging material into an irregular shape, a flat plate can be used for the vacuum heat insulating material 400. As the core material of 400, a fiber diameter core material such as organic fiber or inorganic fiber can be used. Therefore, as the core material of the vacuum heat insulating material 400, a fiber diameter core material such as organic fiber or inorganic fiber can be used. It is not necessary to use a granular material with fluidity as the core material to form irregular shapes such as irregularities, and it is not necessary to perform complicated processing such as providing irregularities on the outer packaging material, so it is easy to handle at low cost Is good In the insulating box body heat insulating performance is improved, the refrigerator, the equipment can be obtained.
Moreover, the vacuum heat insulating material 400 is arrange | positioned between the outer box 710 and the inner box 750, and the thickness of the rigid urethane foam which is an interposed member between the vacuum heat insulating material 400 and the inner box 750 is 11 mm or less (preferably 10 mm Since the strength of the box is improved, it is not necessary to provide unevenness in the vacuum heat insulating material 400, and it is not necessary to form the core material enclosed in the outer packaging material in an uneven shape. Since a flat plate can be used for the material 400, a fiber diameter core material such as an organic fiber or an inorganic fiber can be used as the core material of the vacuum heat insulating material 400. Therefore, as the core material of the vacuum heat insulating material 400 Since fiber core material such as organic fiber or inorganic fiber can be used, it is not necessary to use a granular material with fluidity as the core material to form complicated shapes such as irregularities, and the outer packaging material is also concave To become unnecessary complicated processing such as providing a heat insulating box body handling properties at low cost to improve the good insulation performance, refrigerators, appliance is obtained.

また、断熱箱体７００と、貯蔵品を収納する貯蔵室２、３、４、５、６と、貯蔵室を冷却する冷気を生成する冷却器１３と、を備え、凹部４４０あるいは第２の凹部４４１が上下方向に設けられており、凹部４４０あるいは第２の凹部４４１を冷却器１３により生成された冷気が流れる冷気風路７６０に使用することができるので、凹部の部分の壁厚を薄くできるため貯蔵室内容積を大きくでき、しかも凹部を冷気風路７６０に使用できるので、別途冷気風路を設ける必要がなくなる。   In addition, it includes a heat insulating box 700, storage chambers 2, 3, 4, 5, and 6 for storing stored items, and a cooler 13 that generates cool air that cools the storage chamber, and includes a recess 440 or a second recess. 441 is provided in the vertical direction, and the concave portion 440 or the second concave portion 441 can be used for the cold air passage 760 through which the cool air generated by the cooler 13 flows, so that the wall thickness of the concave portion can be reduced. Therefore, the capacity of the storage chamber can be increased, and the recess can be used for the cold air passage 760, so that it is not necessary to provide a separate cold air passage.

また、断熱箱体７００と、貯蔵品を収納する貯蔵室２、３、４、５、６と、貯蔵室を冷却する冷気を生成する冷却器１３と、を備え、凹部４４０あるいは第２の凹部４４１が上下方向に設けられており、凹部４４０あるいは第２の凹部４４１をミスト装置２００により生成されたミストが流れる風路に使用することができる。したがって、凹部の部分の壁厚を薄くできるため貯蔵室内容積を大きくでき、しかも凹部をミスト風路に使用できるので、別途ミスト風路を設ける必要がなくなる。   In addition, it includes a heat insulating box 700, storage chambers 2, 3, 4, 5, and 6 for storing stored items, and a cooler 13 that generates cool air that cools the storage chamber, and includes a recess 440 or a second recess. 441 is provided in the vertical direction, and the concave portion 440 or the second concave portion 441 can be used for the air path through which the mist generated by the mist device 200 flows. Therefore, since the wall thickness of the recessed portion can be reduced, the volume of the storage chamber can be increased, and the recessed portion can be used as a mist air passage, so that it is not necessary to provide a separate mist air passage.

また、冷却器１３が配置される冷却器室１３１を備え、凹部４４０あるいは第２の凹部４４１が冷却器室１３１と連通しているので、凹部を冷気風路として使用できる。   Moreover, since the cooler chamber 131 in which the cooler 13 is disposed is provided and the recess 440 or the second recess 441 communicates with the cooler chamber 131, the recess can be used as a cold air passage.

また、凸部４５０内をミスト装置２００で生成されたミストを供給するミスト風路に使用するようにすれば、凸部が箱体の強度ＵＰになるとともに、別途ミストを供給する風路を設けるが必要がなくなり、低コストで加湿、除菌などが行なえ、意匠性の良い断熱箱体、及びその断熱箱体を有した冷蔵庫などの機器が得られる。   Further, if the inside of the convex portion 450 is used as a mist air passage for supplying the mist generated by the mist device 200, the convex portion has an increased strength of the box, and a separate air passage for supplying mist is provided. Therefore, humidification and sterilization can be performed at low cost, and a heat-insulating box having a good design and a refrigerator and the like having the heat-insulating box can be obtained.

また、凹部４４０あるいは第２の凹部４４１が貯蔵室（たとえば冷蔵室２）の背面に設けられ、貯蔵室内を照射する照明装置９００を貯蔵室を形成する上面壁、あるいは下面壁、あるいは側面壁、あるいは仕切壁２４に設けるようにしたので、冷気風路７６０と照明装置９００を異なる壁面に設けることができ、同じ壁面に設ける場合に比べて風路の構成、配置位置や照明装置の構成、配置位置の自由度が向上する。   In addition, the concave portion 440 or the second concave portion 441 is provided on the back surface of the storage chamber (for example, the refrigeration chamber 2), and the lighting device 900 that irradiates the storage chamber has an upper surface wall, a lower surface wall, a side wall, Or since it was made to provide in the partition wall 24, the cold air path 760 and the illuminating device 900 can be provided in a different wall surface, and compared with the case where it provides in the same wall surface, the structure of a wind path, the arrangement position, the structure of an illuminating device, arrangement | positioning The degree of freedom of position is improved.

また、冷凍サイクルを備え、冷凍サイクルを形成する配管７２５を凸部４５０に配置するようにすれば、箱体の強度ＵＰになるとともに、別途配管７２５を設ける場所が必要がなくなり、低コストで意匠性の良い断熱箱体、冷蔵庫、機器が得られる。   Further, if a refrigeration cycle is provided and the pipe 725 forming the refrigeration cycle is arranged on the convex portion 450, the strength of the box is increased, and there is no need for a place to separately provide the pipe 725. Good heat insulation box, refrigerator, equipment.

また、冷凍サイクルと、凹部４４０あるいは第２の凹部４４１に前面側（前面開口側）に突出するように形成された突起部９１０と、を備え、冷凍サイクルを形成する配管７２５を突起部９１０に配置するようにすれば、箱体の強度ＵＰになるとともに、別途配管７２５を設ける場所が必要なくなり、低コストで意匠性の良い断熱箱体、冷蔵庫、機器が得られる。   In addition, a refrigeration cycle and a protrusion 910 formed so as to protrude to the front side (front opening side) in the concave portion 440 or the second concave portion 441 are provided, and a pipe 725 forming the refrigeration cycle is provided in the protrusion 910. If it arrange | positions, while it becomes the intensity | strength improvement of a box, the place which provides the piping 725 separately will become unnecessary, and the heat insulation box, refrigerator, and apparatus with a good design property will be obtained at low cost.

また、圧縮機駆動制御用リード線あるいは温度制御用のリード線などの制御用リード線あるいは制御用リード線を内部に配置したパイプ７２０を凸部４５０に配置するようにすれば、箱体の強度ＵＰになるとともに、別途制御用リード線あるいはパイプ７２０等を設ける場所が必要なくなり、低コストで意匠性の良い断熱箱体、冷蔵庫、機器が得られる。   Further, if the pipe 720 in which the control lead wire such as the compressor drive control lead wire or the temperature control lead wire or the control lead wire is placed inside the convex portion 450, the strength of the box body can be obtained. In addition to being UP, a place for separately providing a control lead wire or pipe 720 or the like is not required, and a heat-insulated box body, a refrigerator, and a device that are inexpensive and have good design properties can be obtained.

また、冷凍サイクルと、凹部４４０あるいは第２の凹部４４１に前面側に突出するように形成された突起部９１０と、を備え、圧縮機駆動制御用リード線あるいは温度制御用のリード線などの制御用リード線あるいは制御用リード線などを内部に配置するパイプ７２０等を突起部９１０に配置するようにすれば、箱体の強度ＵＰになるとともに、別途制御用リード線あるいはパイプ７２０等を設ける場所が必要なくなり、低コストで意匠性の良い断熱箱体、冷蔵庫、機器が得られる。   In addition, a refrigeration cycle and a protrusion 910 formed to protrude to the front side in the recess 440 or the second recess 441 are provided, and control of a compressor drive control lead or a temperature control lead, etc. If the pipe 720 or the like in which the lead wire for control or the control lead wire is disposed in the protrusion 910 is provided, the strength of the box is increased and a place for separately providing the control lead wire or pipe 720 or the like. Can be obtained, and a heat-insulated box body, a refrigerator, and a device with good design can be obtained at low cost.

また、外箱７１０に発泡断熱材の充填口７０３、７０４を設け、真空断熱材４００が充填口を塞がないように真空断熱材を配置するようにすれば、発泡断熱材を充填する場合に、真空断熱材で発泡断熱材が充填されるのを邪魔されないので、箱体全域に満遍なく充填できる。したがって、高強度で信頼性の高い断熱箱体、冷蔵庫、機器などが得られる。   In addition, if the outer casing 710 is provided with filling ports 703 and 704 for foam insulation, and the vacuum insulation is arranged so that the vacuum insulation 400 does not block the filling opening, the foam insulation is filled. Since the foam insulation is not disturbed by the vacuum insulation, the entire box can be filled evenly. Therefore, it is possible to obtain a heat-insulating box body, a refrigerator, a device and the like having high strength and high reliability.

また、外箱７１０と内箱７５０とにより形成され、天井壁７４０、背面壁７３０、側壁７９０、底面壁７８０を有する断熱箱体７００の外郭と、断熱箱体７００に設けられ、前面に開口部を有する貯蔵室２、３、４、５、６と、貯蔵室の背面壁７３０に形成され、貯蔵室の背面壁の幅方向略中央位置に設けられた凹部４４０（あるいは第２の凹部４４１）と、凹部４４０と対向する位置の内箱７５０と外箱７１０との間に配置され、少なくとも幅方向において凹部４４０の幅よりも大きな平板状の真空断熱材４００と、凹部４４０と対向する位置の内箱７５０と真空断熱材４００との間に充填される介在部材である発泡断熱材（たとえば硬質ウレタンフォーム）と、を備え、真空断熱材４００の曲げ弾性率が２０ＭＰａ以上であり、凹部４４０と対向する位置の介在部材である発泡断熱材の厚さが１１ｍｍ以下であって、発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）が０．３以下、すなわち、下記（１）（２）（３）の条件のうち少なくとも１つの条件
（１）真空断熱材の曲げ弾性率＞＝２０ＭＰａ、
（２）発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）＜＝０．３、
（３）発泡断熱材の厚さ＜＝１１ｍｍ（好ましくは発泡断熱材の厚さ＜１０ｍｍ）、
を満足すれば、箱体の壁厚さを低減でき、しかも箱体強度、断熱性能とも向上できるので、室（たとえば貯蔵室）内の容積が大きく、高強度で断熱性能の良好な断熱箱体、冷蔵庫、機器が得られる。また、硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。また、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、壁厚さを小さくしても断熱性能を向上させることができる。
また、外箱７１０と内箱７５０とにより形成され、天井壁７４０、背面壁７３０、側壁７９０、底面壁７８０を有する断熱箱体７００の外郭と、断熱箱体７００に設けられ、前面に開口部を有する貯蔵室２、３、４、５、６と、断熱箱体７００の背面壁７３０の外面に設けられ、背面壁７３０の外面の幅方向端部あるいは上下方向端部に設けられた注入口７０３、７０４と、外箱７１０と内箱７５０とから形成される空間３１５内に注入口から注入されるウレタン等の発泡断熱材と、を備え、真空断熱材４００の曲げ弾性率が２０ＭＰａ以上であり、介在部材である発泡断熱材の厚さが１１ｍｍ以下であって、発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）が０．３以下、すなわち、下記（１）（２）（３）の条件のうち少なくとも１つの条件
（１）真空断熱材の曲げ弾性率＞＝２０ＭＰａ、
（２）発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）＜＝０．３、
（３）発泡断熱材の厚さ＜＝１１ｍｍ（好ましくは発泡断熱材の厚さ＜１０ｍｍ）、
を満足し、
真空断熱材４００の注入口７０３、７０４と対向する部位には、注入口７０３、７０４と干渉しないように切欠き部３３が設けるようにすれば、箱体の壁厚さを低減でき、しかも箱体強度、断熱性能とも向上できるので、室（たとえば貯蔵室）内の容積が大きく、高強度で断熱性能の良好な断熱箱体、冷蔵庫、機器が得られる。また、硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。また、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、壁厚さを小さくしても断熱性能を向上させることができる。また、真空断熱材４００を注入口７０３、７０４と干渉せずに被覆面積を大きくで設けることができるので、断熱性能の大きな断熱箱体、冷蔵庫、機器が得られる。
また、外箱７１０と内箱７５０とにより形成され、天井壁７４０、背面壁７３０、側壁７９０、底面壁７８０を有する断熱箱体７００の外郭と、断熱箱体７００に設けられ、前面に開口部を有する貯蔵室２、３、４、５、６と、断熱箱体７００の背面壁７３０の外面に設けられ、背面壁７３０の外面の幅方向端部あるいは上下方向端部に設けられた注入口７０３、７０４と、外箱７１０と内箱７５０とから形成される空間３１５内に注入口から注入されるウレタン等の発泡断熱材と、を備え、真空断熱材４００の曲げ弾性率が２０ＭＰａ以上であり、介在部材である発泡断熱材の厚さを１１ｍｍ以下（好ましくは発泡断熱材の厚さが１０ｍｍ未満）、発泡断熱材の密度を６０Ｋｇ／ｍ３より大きくしているので、断熱性能および壁強度を確保しながら壁厚さを小さくできる。
また、真空断熱材４００の注入口７０３、７０４と対向する部位には、注入口７０３、７０４と干渉しないように切欠き部３３を設けるようにすれば、箱体の壁厚さを低減でき、しかも箱体強度、断熱性能とも向上できるので、室（たとえば貯蔵室）内の容積が大きく、高強度で断熱性能の良好な断熱箱体、冷蔵庫、機器が得られる。また、硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。また、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、壁厚さを小さくしても断熱性能を向上させることができる。また、真空断熱材４００を注入口７０３、７０４と干渉せずに被覆面積を大きくで設けることができるので、断熱性能の大きな断熱箱体、冷蔵庫、機器が得られる。ここで、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加による箱体等からのウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能低下、コストＵＰなどの問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）は１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 Further, the outer box 710 and the inner box 750 are formed, and the outer wall of the heat insulating box 700 having the ceiling wall 740, the back wall 730, the side wall 790, and the bottom wall 780, and the heat insulating box 700 are provided with an opening on the front surface. And a recessed portion 440 (or second recessed portion 441) formed on the rear wall 730 of the storage chamber and provided at a substantially central position in the width direction of the rear wall of the storage chamber. Between the inner box 750 and the outer box 710 at a position facing the recess 440, and at a position facing the recess 440 at least in a flat plate-shaped vacuum heat insulating material 400 larger than the width of the recess 440 in the width direction. A foam heat insulating material (for example, hard urethane foam) that is an interposed member filled between the inner box 750 and the vacuum heat insulating material 400, the bending heat modulus of the vacuum heat insulating material 400 is 20 MPa or more, and the recess 44 The thickness of the foam heat insulating material, which is an interposed member at a position opposite to the thickness, is 11 mm or less, and the thickness of the foam heat insulating material / (thickness of the foam heat insulating material + the thickness of the vacuum heat insulating material) is 0.3 or less, That is, at least one of the following conditions (1), (2), and (3): (1) Bending elastic modulus of vacuum heat insulating material> = 20 MPa,
(2) Foam insulation thickness / (foam insulation thickness + vacuum insulation thickness) <= 0.3,
(3) Thickness of foam insulation <= 11 mm (preferably thickness of foam insulation <10 mm),
If the above is satisfied, the wall thickness of the box can be reduced and the box strength and heat insulation performance can be improved. Therefore, the volume of the chamber (for example, the storage room) is large, high strength, and good heat insulation performance. , Refrigerator, equipment is obtained. Moreover, since the bending elastic modulus of the rigid urethane foam can be increased, the strength can be improved even if the thickness of the rigid urethane foam is reduced. Therefore, the box strength can be improved even if the wall thickness is reduced. Moreover, since the composite heat conductivity of the wall formed from the composite member provided with the vacuum heat insulating material 400 and the rigid urethane foam can be reduced, the heat insulation performance can be improved even if the wall thickness is reduced.
Further, the outer box 710 and the inner box 750 are formed, and the outer wall of the heat insulating box 700 having the ceiling wall 740, the back wall 730, the side wall 790, and the bottom wall 780, and the heat insulating box 700 are provided with an opening on the front surface. Are provided on the outer surface of the back wall 730 of the heat insulation box 700, and the inlet provided on the width direction end or the vertical direction end of the outer surface of the back wall 730. 703, 704, and a foam heat insulating material such as urethane injected from the injection port into the space 315 formed by the outer box 710 and the inner box 750, and the bending elastic modulus of the vacuum heat insulating material 400 is 20 MPa or more. Yes, the thickness of the foam heat insulating material as an interposition member is 11 mm or less, and the thickness of the foam heat insulating material / (thickness of the foam heat insulating material + the thickness of the vacuum heat insulating material) is 0.3 or less. (1) Few of the conditions in (2) and (3) Least one condition (1) of the vacuum heat insulating material flexural modulus> = 20 MPa,
(2) Foam insulation thickness / (foam insulation thickness + vacuum insulation thickness) <= 0.3,
(3) Thickness of foam insulation <= 11 mm (preferably thickness of foam insulation <10 mm),
Satisfied,
If the notch 33 is provided in the portion of the vacuum heat insulating material 400 facing the inlets 703 and 704 so as not to interfere with the inlets 703 and 704, the wall thickness of the box can be reduced. Since both body strength and heat insulation performance can be improved, a heat insulation box, a refrigerator, and a device having a large volume in a room (for example, a storage room), high strength, and good heat insulation performance can be obtained. Moreover, since the bending elastic modulus of the rigid urethane foam can be increased, the strength can be improved even if the thickness of the rigid urethane foam is reduced. Therefore, the box strength can be improved even if the wall thickness is reduced. Moreover, since the composite heat conductivity of the wall formed from the composite member provided with the vacuum heat insulating material 400 and the rigid urethane foam can be reduced, the heat insulation performance can be improved even if the wall thickness is reduced. In addition, since the vacuum heat insulating material 400 can be provided with a large covering area without interfering with the inlets 703 and 704, a heat insulating box, a refrigerator, and a device having high heat insulating performance can be obtained.
Further, the outer box 710 and the inner box 750 are formed, and the outer wall of the heat insulating box 700 having the ceiling wall 740, the back wall 730, the side wall 790, and the bottom wall 780, and the heat insulating box 700 are provided with an opening on the front surface. Are provided on the outer surface of the back wall 730 of the heat insulation box 700, and the inlet provided on the width direction end or the vertical direction end of the outer surface of the back wall 730. 703, 704, and a foam heat insulating material such as urethane injected from the injection port into the space 315 formed by the outer box 710 and the inner box 750, and the bending elastic modulus of the vacuum heat insulating material 400 is 20 MPa or more. Yes, the thickness of the foam heat insulating material as the interposition member is 11 mm or less (preferably the thickness of the foam heat insulating material is less than 10 mm), and the density of the foam heat insulating material is larger than 60 kg / m 3. Ensuring strength While the wall thickness can be reduced.
In addition, if the notch 33 is provided in the portion of the vacuum heat insulating material 400 facing the inlets 703 and 704 so as not to interfere with the inlets 703 and 704, the wall thickness of the box can be reduced, Moreover, since both the box strength and the heat insulation performance can be improved, a heat insulation box, a refrigerator, and a device having a large volume in the chamber (for example, a storage room), high strength and good heat insulation performance can be obtained. Moreover, since the bending elastic modulus of the rigid urethane foam can be increased, the strength can be improved even if the thickness of the rigid urethane foam is reduced. Therefore, the box strength can be improved even if the wall thickness is reduced. Moreover, since the composite heat conductivity of the wall formed from the composite member provided with the vacuum heat insulating material 400 and the rigid urethane foam can be reduced, the heat insulation performance can be improved even if the wall thickness is reduced. In addition, since the vacuum heat insulating material 400 can be provided with a large covering area without interfering with the inlets 703 and 704, a heat insulating box, a refrigerator, and a device having high heat insulating performance can be obtained. Here, if the density of a heat insulating material such as urethane (for example, rigid urethane foam) that is an interposed member becomes too large, (1) the cost is increased due to an increase in the amount of urethane injected, and (2) the box is increased due to an increase in the injection pressure of urethane. (3) Mold for suppressing deformation of box due to increase in adhesion and adhesive strength between mold and box holding member due to increase in foaming pressure during urethane foam and box holding member. And box holding members are difficult to remove from the box (it is difficult to remove from the box), (4) problems such as quality deterioration, performance deterioration, and cost increase, such as rapid deterioration of heat insulation performance due to increased density of urethane. Therefore, the density of the insulating material such as urethane (for example, rigid urethane foam) (the density after foaming in the case of foamed heat insulating material) is 100 kg / m 3 or less (preferably). It is better to set it to 90 kg / m 3 or less.

また、真空断熱材４００は、少なくとも背面壁７３０内に配置され、背面壁７３０と側壁７９０の合計の表面積に対する背面壁７３０と側壁７９０に配置される真空断熱材４００の配置面積の比率を７０％以上にすれば、箱体変形量が小さく、高強度で剛性の高く、断熱性能が良好な断熱箱体、冷蔵庫、機器が得られる。
また、外箱７１０と内箱７５０とから形成され、前面に開口部を有する断熱箱体と、外箱７１０と内箱７５０との間の空間３１５内の外箱内面に設けられた（外箱内表面に貼り付けられた）真空断熱材４００と、断熱箱体の背面壁７３０の外面に設けられ、背面壁７３０の外面の幅方向端部あるいは上下方向端部に設けられた注入口７０３、７０４と、外箱７１０と内箱７５０とから形成される空間３１５内に注入口から注入されるウレタン等の発泡断熱材と、備え、注入口７０３、７０４と対向する部位には、注入口７０３、７０４が真空断熱材４００と干渉しないように切欠き部３３が設けられているので、断熱箱体あるいは断熱箱体の背面壁の外表面積に対する真空断熱材の配置面積の比率（被覆率）を大きくすることができ、また、箱体を形成する外箱と内箱との間の空間の容積に対する真空断熱材の容積の割合（真空断熱材の充填率）も大きくできるので、冷蔵庫あるいは断熱箱体の断熱性能を向上させることが可能となる。ここで、切り欠き部３３の大きさや形状は、注入口７０３、７０４が真空断熱材４００と干渉しなければ問題ないが、注入口７０３、７０４の大きさと略同等かそれ以上の切欠きや開口が好ましい。
また、充填口（注入口）７０３、７０４の幅方向配置位置を、箱体７００の左端あるいは右端からの距離（幅方向内側端部位置）をＹ１、側壁７９０の厚さ（壁厚さ）をＴ１ｍｍ、充填口の幅方向長さ（円の場合は直径）をｒ１としたとき、注入口７０３、７０４の幅方向の所定距離（幅方向内側端部位置）Ｙ１を、Ｔ１＋ｒ１以下にすれば、充填口（注入口）７０３、７０４からウレタンなどの充填材を充填したときに側壁７９０内にウレタンなどの充填材がスムーズに流れるようになる。
また、充填口（注入口）７０３、７０４の上下方向配置位置を、箱体７００の上下方向上端あるいは下端あるいは機械室１Ａの端部からの距離（上下方向内側端部位置）をＹ２、天井壁あるいは底面壁あるいは機械室と貯蔵室間を仕切る断熱仕切壁の厚さ（壁厚さ）をＴ２ｍｍ、充填口の上下方向長さ（円の場合は直径）をｒ２としたとき、注入口７０３、７０４の上下方向の所定距離（上下方向内側端部位置）Ｙ２を、Ｔ２＋ｒ２以下にすれば、充填口（注入口）７０３、７０４からウレタンなどの充填材を充填したときに、天井壁内あるいは底面壁内あるいは仕切壁内にウレタンなどの充填材がスムーズに流れるようになる。 The vacuum heat insulating material 400 is disposed at least in the back wall 730, and the ratio of the arrangement area of the vacuum heat insulating material 400 disposed on the back wall 730 and the side wall 790 to the total surface area of the back wall 730 and the side wall 790 is 70%. By doing so, it is possible to obtain a heat insulating box, a refrigerator, and a device with a small amount of deformation of the box, high strength, high rigidity, and good heat insulating performance.
The outer box 710 and the inner box 750 are provided on the inner surface of the outer box in the space 315 between the outer box 710 and the inner box 750. A vacuum heat insulating material 400 (applied to the inner surface) and an inlet 703 provided on the outer surface of the rear wall 730 of the heat insulating box, and provided on the width direction end or the vertical end of the outer surface of the back wall 730, 704 and a foam heat insulating material such as urethane injected from the injection port into a space 315 formed by the outer box 710 and the inner box 750, and the injection port 703 is provided at a portion facing the injection ports 703 and 704. , 704 is provided with a notch 33 so that it does not interfere with the vacuum heat insulating material 400, the ratio (coverage ratio) of the arrangement area of the vacuum heat insulating material to the outer surface area of the heat insulating box or the back wall of the heat insulating box Can be bigger, and Since the ratio of the volume of the vacuum heat insulating material to the volume of the space between the outer box and the inner box forming the body (the filling rate of the vacuum heat insulating material) can be increased, the heat insulating performance of the refrigerator or the heat insulating box can be improved. It becomes possible. Here, the size and shape of the notch 33 is not a problem as long as the inlets 703 and 704 do not interfere with the vacuum heat insulating material 400. However, the notch and the opening are substantially equal to or larger than the sizes of the inlets 703 and 704. Is preferred.
Further, the width direction arrangement positions of the filling ports (injection ports) 703 and 704 are set, the distance from the left end or the right end of the box body 700 (the width direction inner end position) is Y1, and the thickness (wall thickness) of the side wall 790 is set. When the length in the width direction of the filling port (diameter in the case of a circle) is r1, the predetermined distance in the width direction (width direction inner end position) Y1 of the injection ports 703 and 704 is set to T1 + r1 or less. When a filler such as urethane is filled from the filling ports (injection ports) 703 and 704, the filler such as urethane flows smoothly in the side wall 790.
Further, the vertical arrangement positions of the filling ports (injection ports) 703 and 704 are the vertical upper end or lower end of the box 700 or the distance from the end of the machine room 1A (the vertical inner end position) is Y2, the ceiling wall Or when the thickness (wall thickness) of the heat insulating partition wall partitioning the bottom wall or the machine room and the storage chamber is T2 mm, and the vertical length of the filling port (diameter in the case of a circle) is r2, the inlet 703, If a predetermined distance (upward / downward inner end position) Y2 of 704 is set to T2 + r2 or less, when a filler such as urethane is filled from filling ports (injection ports) 703 and 704, the inside or bottom surface of the ceiling wall A filler such as urethane flows smoothly in the wall or partition wall.

また、断熱箱体外郭を形成する外箱７１０と内箱７５０との間の空間３１５の容積に対する真空断熱材４００の占める容積の割合を４０％以上に設定すれば、箱体変形量が小さく、高強度で剛性の高く、断熱性能が良好な断熱箱体、冷蔵庫、機器が得られる。
また、外箱７１０と内箱７５０とから形成され、前面に開口部を有する断熱箱体と、外箱７１０と内箱７５０との間の空間３１５内の外箱内面に設けられた（外箱内表面に貼り付けられた）真空断熱材４００と、断熱箱体の背面壁７３０の外面に設けられ、背面壁７３０の外面の幅方向端部あるいは上下方向端部に設けられた注入口７０３、７０４と、外箱７１０と内箱７５０とから形成される空間３１５内に注入口から注入されるウレタン等の発泡断熱材と、備え、前記真空断熱材には、注入口７０３、７０４と対向する部位に、注入口７０３、７０４と干渉しないように切り欠きや開口などの切欠き部３３が設けられており、前記真空断熱材は、少なくとも背面壁７３０内に配置され、背面壁７３０と側壁７９０の合計の表面積に対する背面壁７３０と側壁７９０に配置される真空断熱材４００の配置面積の比率を７０％以上にすれば、箱体変形量が小さく、高強度で剛性の高く、断熱性能が良好な断熱箱体、冷蔵庫、機器が得られる。また、真空断熱材４００を注入口７０３、７０４と干渉せずに被覆面積を大きくで設けることができるので、断熱性能の大きな断熱箱体、冷蔵庫、機器が得られる。
また、外箱７１０と内箱７５０とから形成され、前面に開口部を有する断熱箱体と、外箱７１０と内箱７５０との間の空間３１５内の外箱内面に設けられた（外箱内表面に貼り付けられた）真空断熱材４００と、断熱箱体の背面壁７３０の外面に設けられ、背面壁７３０の外面の幅方向端部あるいは上下方向端部に設けられた注入口７０３、７０４と、外箱７１０と内箱７５０とから形成される空間３１５内に注入口から注入されるウレタン等の発泡断熱材と、備え、前記真空断熱材には、注入口７０３、７０４と対向する部位に、注入口７０３、７０４と干渉しないように切り欠きや開口などの切欠き部３３が設けられており、断熱箱体外郭を形成する外箱７１０と内箱７５０との間の空間３１５の容積に対する真空断熱材４００の占める容積の割合を４０％以上に設定すれば、箱体変形量が小さく、高強度で剛性の高く、断熱性能が良好な断熱箱体、冷蔵庫、機器が得られる。また、真空断熱材４００を注入口７０３、７０４と干渉せずに被覆面積を大きくで設けることができるので、断熱性能の大きな断熱箱体、冷蔵庫、機器が得られる。また、真空断熱材４００を注入口７０３、７０４と干渉せずに被覆面積を大きくで設けることができるので、断熱性能の大きな断熱箱体、冷蔵庫、機器が得られる。 Further, if the ratio of the volume occupied by the vacuum heat insulating material 400 to the volume of the space 315 between the outer box 710 and the inner box 750 forming the heat insulating box body outline is set to 40% or more, the box deformation amount is small, A heat-insulated box, refrigerator, and equipment with high strength, high rigidity, and good heat insulation performance can be obtained.
The outer box 710 and the inner box 750 are provided on the inner surface of the outer box in the space 315 between the outer box 710 and the inner box 750. A vacuum heat insulating material 400 (applied to the inner surface) and an inlet 703 provided on the outer surface of the rear wall 730 of the heat insulating box, and provided on the width direction end or the vertical end of the outer surface of the back wall 730, 704, and a foam heat insulating material such as urethane injected from the inlet into the space 315 formed by the outer box 710 and the inner box 750, and the vacuum insulating material faces the inlets 703 and 704. The part is provided with a notch 33 such as a notch or an opening so as not to interfere with the injection ports 703 and 704, and the vacuum heat insulating material is disposed at least in the back wall 730, and the back wall 730 and the side wall 790 are provided. Against the total surface area of If the ratio of the arrangement area of the vacuum heat insulating material 400 arranged on the face wall 730 and the side wall 790 is set to 70% or more, the heat insulation box and refrigerator having a small amount of deformation of the box, high strength, high rigidity, and good heat insulation performance , Equipment is obtained. In addition, since the vacuum heat insulating material 400 can be provided with a large covering area without interfering with the inlets 703 and 704, a heat insulating box, a refrigerator, and a device having high heat insulating performance can be obtained.
The outer box 710 and the inner box 750 are provided on the inner surface of the outer box in the space 315 between the outer box 710 and the inner box 750. A vacuum heat insulating material 400 (applied to the inner surface) and an inlet 703 provided on the outer surface of the rear wall 730 of the heat insulating box, and provided on the width direction end or the vertical end of the outer surface of the back wall 730, 704, and a foam heat insulating material such as urethane injected from the inlet into the space 315 formed by the outer box 710 and the inner box 750, and the vacuum insulating material faces the inlets 703 and 704. A notch 33 such as a notch or an opening is provided at the site so as not to interfere with the inlets 703 and 704, and a space 315 between the outer box 710 and the inner box 750 that forms the outer shell of the heat insulating box is formed. Vacuum insulation 400 occupies volume By setting the ratio of the product to 40% or more, smaller box body deformation amount, high rigidity high strength, heat insulation performance is good heat insulation box, a refrigerator, equipment can be obtained. In addition, since the vacuum heat insulating material 400 can be provided with a large covering area without interfering with the inlets 703 and 704, a heat insulating box, a refrigerator, and a device having high heat insulating performance can be obtained. In addition, since the vacuum heat insulating material 400 can be provided with a large covering area without interfering with the inlets 703 and 704, a heat insulating box, a refrigerator, and a device having high heat insulating performance can be obtained.

また、本実施の形態では、外箱７１０と内箱７５０とにより形成され、天面壁７４０、背面壁７３０、側壁７９０、底面壁７８０を有する断熱箱体７００の外郭と、断熱箱体７００の外郭の内部が仕切壁２４により区画されて形成された前面に開口部を有する貯蔵室２、３、４、５、６と、貯蔵室に収納され、貯蔵室を形成する側壁７９０に設けられたレール部材８１０を介して引き出される引き出し式のケース５２０と、少なくとも貯蔵室の側壁７９０を形成する内箱７５０と外箱７１０との間に配設された真空断熱材４００と、側壁７９０のレール部材８１０が取り付けられるレール取り付け部７５５の内箱７５０と真空断熱材４００との間に充填される介在部材である発泡断熱材と、を備え、レール取り付け部７５５と対向する位置の発泡断熱材の厚さを１１ｍｍ以下（たとえば１０ｍｍより小さい方が良く）にすれば、壁厚さを薄くできる。また、介在部材である発泡断熱材として硬質ウレタンフォームを使用すれば、曲げ弾性率が向上し、箱体の強度が増加し、レール取り付け部７５５の保持強度あるいは固定強度も向上する。   Further, in the present embodiment, the outer shell of the heat insulating box 700 formed by the outer box 710 and the inner box 750 and having the top wall 740, the back wall 730, the side wall 790, and the bottom wall 780, and the outer box of the heat insulating box 700 are shown. Storage compartments 2, 3, 4, 5, 6 having an opening on the front surface formed by partitioning the interior of partition wall 24, and rails provided in side walls 790 housed in the storage compartment and forming the storage compartment A drawer-type case 520 drawn through the member 810, a vacuum heat insulating material 400 disposed between the inner box 750 and the outer box 710 that form at least the side wall 790 of the storage chamber, and the rail member 810 of the side wall 790 A foam heat insulating material that is an interposed member that is filled between the inner box 750 of the rail mounting portion 755 and the vacuum heat insulating material 400 to which the rail mounting portion 755 is mounted. If the thickness of the foam insulation material 11mm or less (e.g. better smaller than 10 mm), can be made thin wall thickness. Further, if rigid urethane foam is used as the foaming heat insulating material that is the interposition member, the flexural modulus is improved, the strength of the box is increased, and the holding strength or fixing strength of the rail attachment portion 755 is also improved.

また、外箱７１０と内箱７５０とにより形成され、天面壁７４０、背面壁７３０、側壁７９０、底面壁７８０を有する断熱箱体７００の外郭と、断熱箱体７００の外郭の内部が仕切壁２４により区画されて形成された前面に開口部を有する貯蔵室２、３、４、５、６と、貯蔵室に収納され、貯蔵室を形成する側壁７９０に設けられたレール部材８１０を介して引き出される引き出し式のケース５２０と、少なくとも貯蔵室の側壁７９０を形成する内箱７５０と外箱７１０との間に配設された真空断熱材４００と、側壁７９０のレール部材８１０が取り付けられるレール取り付け部７５５の内箱７５０と真空断熱材４００との間に充填あるいは塗布される介在部材である発泡断熱材と、を備え、レール取り付け部７５５と対向する位置の介在部材である発泡断熱材の厚さが１１ｍｍ以下（たとえば１０ｍｍより小さい方が良い）であり、レールを取り付けるレール部（レール取り付け部）７５５の内箱７５０と真空断熱材４００との間に充填あるいは塗布される介在部材である発泡断熱材の密度を６０ｋｇ／ｍ３よりも大きくしている。したがって、介在部材の密度が６０ｋｇ／ｍ３よりも大きいためレールなどを固定するためのネジあるいはネジ固定部の保持強度あるいは固定強度が増加しレール取り付け部７５５近傍の内箱７５０が変形したりしないので引き出し扉やケースなどの引き出しがスムーズに行える。また、ネジなどの固定部材が取り付けられるレール取り付け部７５５が破損することもなくなり、信頼性が向上する。また、発泡断熱材の厚さを１１ｍｍ以下（好ましくは１０ｍｍより小さく）にすれば、壁厚さを薄くできるとともに、介在部材である発泡断熱材として硬質ウレタンフォームを使用すれば、曲げ弾性率が向上し、箱体の強度が増加する。
ここで、断熱箱体あるいは冷蔵庫あるいは機器などの側壁７９０あるいは背面壁７３０あるいは天井壁７４０あるいは底面壁７３０あるいは仕切壁２４の壁厚さは薄い方が庫内の貯蔵品収納容積が大きくできるので、壁厚さは４０ｍｍ以下が良く、また、壁厚さが薄すぎると強度低下、断熱性能低下、真空断熱材の空間の減少による組み立て性の悪化などの問題が発生する恐れがあるので、壁厚さは２０ｍｍ以上程度が良い。したがって、側壁７９０あるいは背面壁７３０あるいは天井壁７４０あるいは底面壁７３０あるいは仕切壁２４などの断熱箱体の壁厚さあるいは冷蔵庫の壁厚さあるいは機器の壁厚さは、２０ｍｍ以上４０ｍｍ以下の範囲内にした方が良い。 Further, the outer wall of the heat insulating box 700 formed by the outer box 710 and the inner box 750 and having the top wall 740, the back wall 730, the side wall 790, and the bottom wall 780, and the inside of the outer wall of the heat insulating box 700 are the partition walls 24. The storage chambers 2, 3, 4, 5, 6 having openings on the front surface formed by partitioning and the rail members 810 that are housed in the storage chambers and provided on the side walls 790 that form the storage chambers are drawn out. A pull-out case 520, a vacuum heat insulating material 400 disposed between the inner box 750 and the outer box 710 forming at least the side wall 790 of the storage chamber, and a rail attachment portion to which the rail member 810 of the side wall 790 is attached An intervening portion at a position facing the rail mounting portion 755. The foam insulating material is an interposing member filled or applied between the inner box 750 of the 755 and the vacuum heat insulating material 400. The thickness of the foam heat insulating material is 11 mm or less (for example, smaller than 10 mm is better), and the space between the inner box 750 and the vacuum heat insulating material 400 of the rail portion (rail mounting portion) 755 to which the rail is attached is filled or applied. The density of the foamed heat insulating material that is the interposed member is set to be larger than 60 kg / m 3 . Therefore, since the density of the interposed member is larger than 60 kg / m 3 , the holding strength or fixing strength of the screw or the screw fixing portion for fixing the rail or the like is increased, and the inner box 750 in the vicinity of the rail mounting portion 755 is not deformed. So you can smoothly pull out drawer doors and cases. Further, the rail attachment portion 755 to which a fixing member such as a screw is attached is not damaged, and the reliability is improved. Further, if the thickness of the foam heat insulating material is 11 mm or less (preferably smaller than 10 mm), the wall thickness can be reduced, and if a rigid urethane foam is used as the foam heat insulating material as an interposition member, the flexural modulus is increased. And the strength of the box increases.
Here, as the wall thickness of the side wall 790, the back wall 730, the ceiling wall 740, the bottom wall 730, or the partition wall 24 of the heat insulating box, refrigerator, equipment, etc. is thinner, the stored item storage capacity in the warehouse can be increased. The wall thickness should be 40mm or less, and if the wall thickness is too thin, there is a risk of problems such as reduced strength, reduced heat insulation performance, and poor assembly performance due to reduced space in the vacuum insulation material. The length is preferably about 20 mm or more. Therefore, the wall thickness of the heat insulating box such as the side wall 790, the back wall 730, the ceiling wall 740, the bottom wall 730, or the partition wall 24, the wall thickness of the refrigerator, or the wall thickness of the device is in the range of 20 mm to 40 mm. It is better to make it.

また、本実施の形態では、外箱７１０と内箱７５０とにより形成され、天面壁７４０、背面壁７３０、側壁７９０、底面壁７８０を有する断熱箱体７００の外郭と、断熱箱体７００の外郭の内部が仕切壁２４により区画されて形成された前面に開口部を有する貯蔵室２、３、４、５、６と、貯蔵室に収納され、貯蔵室の底面あるいは上面を形成する仕切壁（貯蔵室と貯蔵室との間の仕切壁２４、底面壁７８０、天井壁７４０を含む）に設けられたレール部材８１０を介して引き出される引き出し式のケース５２０と、レール部材８１０が設けられた仕切壁（貯蔵室と貯蔵室との間の仕切壁２４、底面壁７８０、天井壁７４０を含む）内に配設された真空断熱材４００と、レール部材８１０と対向する位置の仕切壁（貯蔵室と貯蔵室との間の仕切壁２４、底面壁７８０、天井壁７４０を含む）において、仕切壁（貯蔵室と貯蔵室との間の仕切壁２４、底面壁７８０、天井壁７４０を含む）を形成する外郭部材と真空断熱材４００との間に充填あるいは塗布あるいは配置される介在部材である断熱材と、を備え、レール部材８１０と対向する仕切壁の位置における介在部材である断熱材の厚さが１１ｍｍ以下（たとえば１０ｍｍより小さい）であり、外郭部材と真空断熱材４００との間に充填あるいは塗布あるいは配置される介在部材である断熱材の密度を６０ｋｇ／ｍ３よりも大きくしている。したがって、介在部材の密度が６０ｋｇ／ｍ３よりも大きいためレールなどを固定するためのネジあるいはネジ固定部の保持強度あるいは固定強度が増加し、仕切壁（貯蔵室と貯蔵室との間の仕切壁２４、底面壁７８０、天井壁７４０を含む）のレール取り付け部近傍の外郭部材が変形したりしないので引き出し扉やケースなどの引き出しがスムーズに行える。また、ネジなどの固定部材が取り付けられる仕切壁が破損することもなくなり、信頼性が向上する。また、介在部材である断熱材の厚さを１１ｍｍ以下（たとえば１０ｍｍよりも小さく）にすれば、壁厚さを薄くできるとともに介在部材である断熱材として硬質ウレタンフォームを使用すれば、曲げ弾性率が向上し、仕切壁、箱体の強度が増加する。 Further, in the present embodiment, the outer shell of the heat insulating box 700 formed by the outer box 710 and the inner box 750 and having the top wall 740, the back wall 730, the side wall 790, and the bottom wall 780, and the outer box of the heat insulating box 700 are shown. Storage compartments 2, 3, 4, 5, 6 having an opening on the front surface formed by partitioning the interior of partition wall 24, and a partition wall that is housed in the storage chamber and forms the bottom or top surface of the storage chamber ( A drawer-type case 520 drawn out via a rail member 810 provided on a partition wall 24, a bottom wall 780, and a ceiling wall 740 between the storage chamber and a partition provided with the rail member 810 The vacuum heat insulating material 400 disposed in the wall (including the partition wall 24 between the storage chamber, the bottom wall 780, and the ceiling wall 740), and the partition wall (storage chamber) facing the rail member 810 Between the container and the storage room Outer member and vacuum heat insulating material forming partition wall (including partition wall 24 between storage room and storage room, bottom wall 780 and ceiling wall 740) in wall 24, bottom wall 780 and ceiling wall 740) And a heat insulating material that is an interposition member that is filled, applied, or arranged between 400 and 400, and the thickness of the heat insulating material that is an interposition member at the position of the partition wall facing the rail member 810 is 11 mm or less (for example, from 10 mm or less) The density of the heat insulating material, which is an interposed member that is filled, applied, or arranged between the outer member and the vacuum heat insulating material 400, is larger than 60 kg / m 3 . Accordingly, since the density of the interposition member is larger than 60 kg / m 3 , the holding strength or fixing strength of the screw or the screw fixing portion for fixing the rail or the like is increased, and the partition wall (the partition between the storage chamber and the storage chamber is increased). Since the outer members near the rail mounting portion (including the wall 24, the bottom wall 780, and the ceiling wall 740) are not deformed, the drawer door and the case can be smoothly drawn out. Further, the partition wall to which a fixing member such as a screw is attached is not damaged, and the reliability is improved. Moreover, if the thickness of the heat insulating material as the interposed member is 11 mm or less (for example, smaller than 10 mm), the wall thickness can be reduced, and if the rigid urethane foam is used as the heat insulating material as the interposed member, the flexural modulus is increased. Improves, and the strength of the partition wall and box increases.

また、（介在部材である発泡断熱材の厚さ）／（介在部材である発泡断熱材の厚さ＋真空断熱材４００の厚さ）を０．３以下に設定すれば、介在部材である発泡断熱材と真空断熱材とを合わせた複合部材の熱伝導率を小さくできるので、複合部材の断熱性能を向上させることができる。   Further, if (thickness of foam insulation material as an interposed member) / (thickness of foam insulation material as an interposed member + thickness of vacuum insulation material 400) is set to 0.3 or less, foaming as an interposed member Since the heat conductivity of the composite member combining the heat insulating material and the vacuum heat insulating material can be reduced, the heat insulating performance of the composite member can be improved.

また、貯湯タンクなどの熱源を断熱する場合等には、断熱壁（背面壁７３０、天井壁７４０、底面壁７８０、側壁７９０、仕切壁２４など）の厚さを薄くして円筒状や角筒状や前面開口を有する箱体７００などの断熱箱体の外形の大きさ（たとえば外径、幅、奥行き、高さなど）を小さくしたコンパクトな断熱箱体、冷蔵庫、貯湯装置、機器などを得ることができる。   When heat sources such as hot water storage tanks are insulated, the thickness of the heat insulating walls (back wall 730, ceiling wall 740, bottom wall 780, side wall 790, partition wall 24, etc.) is reduced to be cylindrical or rectangular. To obtain a compact heat insulating box, refrigerator, hot water storage device, equipment, etc. having a reduced size (eg, outer diameter, width, depth, height, etc.) of a heat insulating box such as a box 700 having a shape or a front opening be able to.

また、介在部材である発泡断熱材が硬質ウレタンフォームであり、硬質ウレタンフォームの曲げ弾性率を１５ＭＰａ以上で使用するようにすれば、レールなどを固定するためのネジあるいはネジ固定部の保持あるいは固定強度が増加しレール取り付け部７５５近傍の内箱７５０が変形したりしないので引き出し扉やケースなどの引き出しがスムーズに行える。また、ネジなどの取り付け部の内箱７５０が破損することもなくなり、信頼性が向上する。   Also, if the foamed heat insulating material, which is an interposed member, is a rigid urethane foam, and the bending elastic modulus of the rigid urethane foam is used at 15 MPa or more, a screw or a screw fixing part for fixing a rail or the like is held or fixed. Since the strength is increased and the inner box 750 in the vicinity of the rail mounting portion 755 is not deformed, the drawer door, case, etc. can be pulled out smoothly. Further, the inner box 750 of the attachment portion such as a screw is not damaged, and the reliability is improved.

また、レールが２段階に引き出し可能な２段レール、あるいは、３段階に引き出し可能な３段レールを使用する場合には、レール部（レール取り付け部）７５５への負荷が大きくなるが、レール部７５５と対向する位置の介在部材である発泡断熱材の厚さが１１ｍｍ以下であり、（介在部材である発泡断熱材の厚さ）／（介在部材である発泡断熱材の厚さ＋真空断熱材４００の厚さ）が０．３以下であって、レール部材８１０を取り付けるレール取り付け部（レール部）７５５の内箱７５０と真空断熱材４００との間に充填される介在部材である発泡断熱材の密度を６０ｋｇ／ｍ３よりも大きくすれば、内箱７５０のレール部７５５の強度が向上し、また、レール部材８１０などを固定するためのネジなどの固定部材７３５の保持強度あるいは固定強度が増加しレール部７５５近傍の内箱７５０が変形したりしないので、２段レールあるいは３段レールを使用した場合であっても引き出し扉やケースなどの引き出しがスムーズに行える。また、ネジなどの固定部材７３５の取り付け部であるレール部７５５あるいは内箱７５０が破損することもなくなり、信頼性が向上する。 Also, when using a two-stage rail that can be pulled out in two stages, or a three-stage rail that can be pulled out in three stages, the load on the rail section (rail mounting section) 755 increases. The thickness of the foam heat insulating material which is an interposed member at a position facing 755 is 11 mm or less, and (thickness of the foam heat insulating material which is the interposed member) / (thickness of the foam heat insulating material which is the interposed member + vacuum heat insulating material) 400 (thickness of 400) is 0.3 or less, and a foam heat insulating material that is an interposition member filled between the inner box 750 of the rail attachment portion (rail portion) 755 to which the rail member 810 is attached and the vacuum heat insulating material 400 if the density of greater than 60 kg / m 3, to improve the strength of the rail portion 755 of the inner box 750, also walk holding strength of the fixing member 735 such as a screw for fixing the like rail member 810 Since the fixing strength is increased and the inner box 750 in the vicinity of the rail portion 755 is not deformed, the drawer door and the case can be smoothly pulled out even when the two-stage rail or the three-stage rail is used. Further, the rail portion 755 or the inner box 750, which is a mounting portion of the fixing member 735 such as a screw, is not damaged, and the reliability is improved.

また、ケース５２０は、ケース５２０を形成するケース側壁と、ケース側壁に形成され、レール部材８１０にてケース５２０が支持される段部であるレール支持部（ケース段差部）５２５と、を有し、段部であるレール支持部（ケース段差部）５２５がケース５２０の高さ方向に対して、上面から１／２以下の下方位置好ましくは１／３以下の下方位置に設けるようにすれば、段部であるレール支持部（ケース段差部）５２５がケース５２０の高さ方向に対して１／２よりも上方に設ける場合に比べてケース５２０の抜き勾配の分だけケース５２０の幅を大きくできるので、ケース５２０の容積を大きくできる。   Further, the case 520 includes a case side wall that forms the case 520, and a rail support portion (case step portion) 525 that is formed on the case side wall and is a step portion on which the case 520 is supported by the rail member 810. If the rail support part (case step part) 525 which is a step part is provided at a lower position of 1/2 or less from the upper surface, preferably 1/3 or less of the height direction of the case 520, The width of the case 520 can be increased by an amount corresponding to the draft of the case 520, compared to a case where the rail support portion (case step portion) 525 which is a step portion is provided above 1/2 with respect to the height direction of the case 520. Therefore, the volume of the case 520 can be increased.

また、天井壁７４０あるいは背面壁７３０の庫外側（図１４に示すように貯蔵室側とは反対側）に設けられ、制御装置３０が配置さる制御基板室３１と、制御基板室３１と内箱７５０との間に配設される真空断熱材４００と、真空断熱材４００と内箱７５０との間に充填される自己接着性を有する介在部材である発泡断熱材である硬質ウレタンフォームと、を備え、制御基板室３１と対向する位置の発泡断熱材の厚さが１１ｍｍ以下であって、介在部材である発泡断熱材の厚さ／（介在部材である発泡断熱材の厚さ＋真空断熱材の厚さ）が０．３以下、すなわち、
発泡断熱材の厚さ＜＝１１ｍｍ（たとえば発泡断熱材の厚さ＜１０ｍｍ）
発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）＜＝０．３
とすれば、制御基板室３１が設けられた部位の箱体の壁厚さを低減でき、しかも箱体強度、断熱性能とも向上できるので、室（たとえば貯蔵室）内の容積が大きく、高強度で断熱性能の良好な冷蔵庫、機器が得られる。また、介在部材である硬質ウレタンフォームの厚さを小さくすることにより硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、介在部材である硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、壁厚さを小さくしても箱体強度を向上できる。また、介在部材である発泡断熱材の厚さ／（介在部材である発泡断熱材の厚さ＋真空断熱材の厚さ）が０．３以下に設定すれば、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、壁厚さを小さくしても断熱性能を向上させることができる。ここで、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加による箱体等からのウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能低下、コストＵＰなどの問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）は１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。 Further, a control board chamber 31 provided on the outer side of the ceiling wall 740 or the back wall 730 (on the opposite side to the storage room side as shown in FIG. 14), in which the control device 30 is disposed, the control board room 31 and the inner box 750, and a rigid urethane foam that is a foam heat insulating material that is an interposition member having self-adhesive properties that is filled between the vacuum heat insulating material 400 and the inner box 750. And the thickness of the foam heat insulating material at a position facing the control board chamber 31 is 11 mm or less, and the thickness of the foam heat insulating material as the interposition member / (thickness of the foam heat insulating material as the interposition member + vacuum heat insulating material Is less than 0.3, that is,
Foam insulation thickness <= 11 mm (eg, foam insulation thickness <10 mm)
Foam insulation thickness / (foam insulation thickness + vacuum insulation thickness) <= 0.3
As a result, the wall thickness of the box at the portion where the control substrate chamber 31 is provided can be reduced, and the box strength and heat insulation performance can be improved. Therefore, the volume in the chamber (for example, the storage chamber) is large and the strength is high. This makes it possible to obtain refrigerators and equipment with good thermal insulation performance. In addition, since the flexural modulus of rigid urethane foam can be increased by reducing the thickness of rigid urethane foam, which is an interposed member, the strength is improved even if the thickness of rigid urethane foam, which is an interposed member, is reduced. Can be made. Therefore, the box strength can be improved even if the wall thickness is reduced. Further, if the thickness of the foam insulation as the interposition member / (thickness of the foam insulation as the interposition member + the thickness of the vacuum insulation) is set to 0.3 or less, the vacuum insulation 400 and the rigid urethane foam Since the composite thermal conductivity of the wall formed from the composite member provided with can be reduced, the heat insulation performance can be improved even if the wall thickness is reduced. Here, if the density of a heat insulating material such as urethane (for example, rigid urethane foam) that is an interposed member becomes too large, (1) the cost is increased due to an increase in the amount of urethane injected, and (2) the box is increased due to an increase in the injection pressure of urethane. (3) Mold for suppressing deformation of box due to increase in adhesion and adhesive strength between mold and box holding member due to increase in foaming pressure during urethane foam and box holding member. And box holding members are difficult to remove from the box (it is difficult to remove from the box), (4) problems such as quality deterioration, performance deterioration, and cost increase, such as rapid deterioration of heat insulation performance due to increased density of urethane. Therefore, the density of the insulating material such as urethane (for example, rigid urethane foam) (the density after foaming in the case of foamed heat insulating material) is 100 kg / m 3 or less (preferably). It is better to set it to 90 kg / m 3 or less.

また、介在部材である硬質ウレタンフォームの密度を６０ｋｇ／ｍ３よりも大きくすることで、介在部材である硬質ウレタンフォームが密に形成され、曲げ弾性率が大きくなるため、制御基板室３１の変形を抑制できる。また、硬質ウレタンフォームが密に形成されるため、ネジなどの固定部材で固定する場合には、ネジなどの保持強度が向上する。
また、断熱箱体７００の前面開口部を開閉自在に閉塞する扉を備えた冷蔵庫において、扉は扉枠部材あるいは扉内板などで形成される扉外郭と扉外郭の前面に設けられる意匠面であるガラス面材とで形成されており、ガラス面材と扉外郭とで形成される扉内部空間に真空断熱材４００を備えており、扉内部空間（たとえばガラス面材と真空断熱材４００との間）に充填あるいは塗布あるいは封入される介在部材である硬質ウレタンフォームの密度を６０ｋｇ／ｍ３よりも大きくすることで、介在部材である硬質ウレタンフォームが密に形成され、曲げ弾性率が大きくなるため、扉前面にガラス面材を配設した場合でもガラス面材の保持あるいは接着強度が向上するので、ガラス面材の落下を抑制でき、また、扉内部空間の介在部材である硬質ウレタンフォームの強度が向上するので、ガラス面材を備えた扉の強度（剛性）も向上する。ここで、ガラス面材は、従来の鋼板に比べて厚さが大きく重量も重くなるのでガラス面材が落下しにくいように扉外郭のガラス面材保持構造を強固にしなければならなくなり構造が複雑で高コストになるが、本実施の形態のように硬質ウレタンフォームの密度を６０ｋｇ／ｍ３よりも大きくすることによって、ウレタンフォームとガラス面材との密着性が増加しガラス面材の保持力が増加するので、ガラス面材の落下に対する信頼性が向上する。また、ガラス面材と対向する位置の発泡断熱材の厚さが１１ｍｍ以下（厚さのばらつきや真空断熱材４００の表面の凹凸等の影響を考慮すると１０ｍｍ未満が良い）にすれば、介在部材であるウレタンの曲げ弾性率も向上できるので、扉強度を向上でき、扉厚さも低減できる。
また、扉前面に設けられるガラス面材と扉外郭（扉枠部材あるいは扉内板などで形成される）との間の扉内部空間に配設される真空断熱材４００と、真空断熱材４００とガラス面材との間に充填される自己接着性を有する介在部材である発泡断熱材である硬質ウレタンフォームと、を備え、ガラス面材と対向する位置の発泡断熱材の厚さが１１ｍｍ以下（厚さのばらつきや真空断熱材４００の表面の凹凸等の影響を考慮すると１０ｍｍ未満が良い）であって、介在部材である発泡断熱材の厚さ／（介在部材である発泡断熱材の厚さ＋真空断熱材の厚さ）が０．３以下、すなわち、
発泡断熱材の厚さ＜＝１１ｍｍ（たとえば発泡断熱材の厚さ＜１０ｍｍ）
発泡断熱材の厚さ／（発泡断熱材の厚さ＋真空断熱材の厚さ）＜＝０．３
とすれば、ガラス面材が設けられた扉の厚さを低減でき、しかも扉体強度、断熱性能とも向上できるので、室（たとえば貯蔵室）内の容積が大きく、高強度で断熱性能の良好な冷蔵庫、機器が得られる。また、介在部材である硬質ウレタンフォームの厚さを小さくすることにより硬質ウレタンフォームの曲げ弾性率を大きくすることができるので、介在部材である硬質ウレタンフォームの厚さが小さくなっても強度を向上させることができる。したがって、扉厚さを小さくしても扉体強度を向上できる。また、介在部材である発泡断熱材の厚さ／（介在部材である発泡断熱材の厚さ＋真空断熱材の厚さ）が０．３以下に設定すれば、真空断熱材４００と硬質ウレタンフォームを備えた複合部材から形成される壁の複合熱伝導率を小さくできるので、扉の厚さを小さくしても断熱性能を向上させることができる。
ここで、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度は大きくなりすぎると、（１）ウレタンの注入量増加によるコストＵＰ、（２）ウレタンの注入圧力増加による箱体等からのウレタン漏れの発生、（３）ウレタン発泡時の発泡圧力増加による箱体変形抑制用金型や箱体押さえ部材などとウレタンとの密着力、接着力増加のため箱体変形抑制用金型や箱体押さえ部材などが箱体から抜けにくくなる（箱体から取り外しにくくなる）、（４）ウレタンの密度増による断熱性能の急激な悪化など、品質悪化、性能低下、コストＵＰなどの問題が発生するので、介在部材であるウレタンなどの断熱材（たとえば硬質ウレタンフォーム）の密度（発泡断熱材の場合は発泡後の密度）は１００ｋｇ／ｍ３以下（好ましくは９０ｋｇ／ｍ３以下）にした方が良い。
また、外箱と内箱とから形成され、背面壁、側壁を有する箱体と、箱体内に設けられ、前面に開口部を有する貯蔵室と、箱体の前面開口部を開閉自在に閉塞する扉と、を備えた冷蔵庫において、扉は、扉の周囲壁を形成する扉枠部と貯蔵品を収納する貯蔵室側の面部を形成する扉内板とによって形成された扉外郭と、前記扉外郭の前面側（断熱箱体あるいは冷蔵庫あるいは機器などに取り付けられたときの前面側）に設けられたガラス面材と、で形成されており、ガラス面材と扉外郭とで形成される扉内部空間に設けられる真空断熱材と、扉内部空間に充填あるいは塗布あるいは封入される発泡断熱材と、を備え、ガラス面材と扉外郭とで形成される扉内部空間の容積に対する真空断熱材の占める容積の割合を４０％以上にすることにより、扉の変形量が小さく、高強度で剛性の高く、断熱性能が良好な扉体、冷蔵庫、機器が得られる。
また、断熱箱体あるいは冷蔵庫あるいは機器などの側壁７９０あるいは背面壁７３０あるいは天井壁７４０あるいは底面壁７３０あるいは仕切壁２４の壁厚さあるいは扉の厚さは薄い方が庫内の貯蔵品収納容積が大きくできるので、壁厚さは４０ｍｍ以下が良く、また、壁厚さが薄すぎると強度低下、断熱性能低下、真空断熱材の空間の減少による組み立て性の悪化などの問題が発生する恐れがあるので、壁厚さは２０ｍｍ以上程度が良い。したがって、側壁７９０あるいは背面壁７３０あるいは天井壁７４０あるいは底面壁７３０あるいは仕切壁２４などの断熱箱体の壁厚さあるいは冷蔵庫の壁厚さあるいは機器の壁厚さは、２０ｍｍ以上４０ｍｍ以下の範囲内にした方が良い。
また、貯蔵室の前面開口部を閉塞する扉を備え、扉は、扉枠部と扉内板で形成された扉外郭と、扉外郭に設けられたガラス面材と、で形成されており、ガラス面材と前記扉外郭とで形成される扉内部空間に設けられた真空断熱材と、扉内部空間に充填あるいは塗布あるいは封入される発泡断熱材と、を備え、ガラス面材と前記真空断熱材との間に充填あるいは塗布あるいは封入される発泡断熱材の発泡後の密度が６０ｋｇ／ｍ３よりも大きく、厚さを１０ｍｍより小さくすれば、断熱性能が良好で貯蔵室内容積が大きく、ガラス面材の使用による意匠性もすぐれ、箱体強度も向上する冷蔵庫が得られる。 In addition, since the density of the rigid urethane foam that is the interposition member is larger than 60 kg / m 3 , the rigid urethane foam that is the interposition member is densely formed and the flexural modulus is increased. Can be suppressed. In addition, since the hard urethane foam is densely formed, the holding strength of the screws and the like is improved when fixing with a fixing member such as screws.
Moreover, in the refrigerator provided with the door which can close | closably open and close the front-surface opening part of the heat insulation box 700, a door is the design surface provided in the front surface of the door outline formed by a door frame member or a door inner board, and the door outline. It is formed of a certain glass face material, and a vacuum heat insulating material 400 is provided in a door internal space formed by the glass face material and the door outline, and the door internal space (for example, the glass face material and the vacuum heat insulating material 400 The density of the rigid urethane foam, which is an interposed member that is filled, applied, or enclosed in between, is larger than 60 kg / m 3 , so that the rigid urethane foam, which is an interposed member, is densely formed and the flexural modulus increases. Therefore, even when a glass face material is disposed on the front face of the door, the glass face material can be held or improved in adhesion strength, so that the fall of the glass face material can be suppressed, and a hard material that is an interposition member in the door interior space Since the strength of the urethane foam is improved, the strength (rigidity) of the door provided with the glass face material is also improved. Here, since the glass face material is thicker and heavier than conventional steel sheets, the glass face material holding structure of the door outer must be strengthened so that the glass face material does not fall easily and the structure is complicated. However, by increasing the density of the rigid urethane foam to more than 60 kg / m 3 as in the present embodiment, the adhesion between the urethane foam and the glass surface material is increased, and the holding power of the glass surface material is increased. Therefore, the reliability with respect to the fall of the glass face material is improved. Further, if the thickness of the foam heat insulating material at the position facing the glass face material is 11 mm or less (less than 10 mm is preferable in consideration of the influence of the thickness variation and the unevenness of the surface of the vacuum heat insulating material 400), the interposition member Since the flexural modulus of urethane can be improved, the door strength can be improved and the door thickness can be reduced.
Further, a vacuum heat insulating material 400 disposed in a door inner space between a glass face material provided on the front surface of the door and a door outer shell (formed by a door frame member or a door inner plate), a vacuum heat insulating material 400, A hard urethane foam, which is a foam heat insulating material, which is an interposition member having self-adhesiveness filled between the glass face material, and the thickness of the foam heat insulating material at a position facing the glass face material is 11 mm or less ( The thickness is less than 10 mm in consideration of the variation in thickness and the unevenness of the surface of the vacuum heat insulating material 400, etc., and the thickness of the foam heat insulating material as the interposition member / (the thickness of the foam heat insulating material as the interposition member) + The thickness of the vacuum heat insulating material) is 0.3 or less, that is,
Foam insulation thickness <= 11 mm (eg, foam insulation thickness <10 mm)
Foam insulation thickness / (foam insulation thickness + vacuum insulation thickness) <= 0.3
In this case, the thickness of the door provided with the glass face material can be reduced, and the door strength and heat insulation performance can be improved, so the volume in the chamber (for example, the storage room) is large, high strength and good heat insulation performance. Refrigerator and equipment can be obtained. In addition, since the flexural modulus of rigid urethane foam can be increased by reducing the thickness of rigid urethane foam, which is an interposed member, the strength is improved even if the thickness of rigid urethane foam, which is an interposed member, is reduced. Can be made. Therefore, even if the door thickness is reduced, the door body strength can be improved. Further, if the thickness of the foam insulation as the interposition member / (thickness of the foam insulation as the interposition member + the thickness of the vacuum insulation) is set to 0.3 or less, the vacuum insulation 400 and the rigid urethane foam Since the composite thermal conductivity of the wall formed from the composite member provided with can be reduced, the heat insulation performance can be improved even if the thickness of the door is reduced.
Here, if the density of a heat insulating material such as urethane (for example, rigid urethane foam) that is an interposed member becomes too large, (1) the cost is increased due to an increase in the amount of urethane injected, and (2) the box is increased due to an increase in the injection pressure of urethane. (3) Mold for suppressing deformation of box due to increase in adhesion and adhesive strength between mold and box holding member due to increase in foaming pressure during urethane foam and box holding member. And box holding members are difficult to remove from the box (it is difficult to remove from the box), (4) problems such as quality deterioration, performance deterioration, and cost increase, such as rapid deterioration of heat insulation performance due to increased density of urethane. Therefore, the density of the insulating material such as urethane (for example, rigid urethane foam) (the density after foaming in the case of foamed heat insulating material) is 100 kg / m 3 or less (preferably). It is better to set it to 90 kg / m 3 or less.
In addition, a box body formed from an outer box and an inner box, having a back wall and a side wall, a storage chamber provided in the box body and having an opening on the front surface, and a front opening of the box are closed openably. In the refrigerator comprising a door, the door includes a door frame formed by a door frame portion that forms a peripheral wall of the door and a door inner plate that forms a surface portion on the storage chamber side that stores stored items, and the door The inside of the door formed by the glass face material provided on the front side of the outer shell (front side when attached to a heat insulating box or refrigerator or equipment), and the door outer shell A vacuum heat insulating material provided in the space and a foam heat insulating material filled, applied, or enclosed in the door internal space, and the vacuum heat insulating material occupies the volume of the door internal space formed by the glass face material and the door outline By making the volume ratio 40% or more, The amount of deformation is small, high rigidity high strength, heat insulation performance is good door body, a refrigerator, equipment can be obtained.
Further, when the wall thickness of the side wall 790, the back wall 730, the ceiling wall 740, the bottom wall 730, the partition wall 24 or the door of the heat insulating box, the refrigerator, or the appliance is thinner, the stored item storage capacity in the warehouse is smaller. Because the wall thickness can be increased, the wall thickness should be 40 mm or less. If the wall thickness is too thin, there is a risk of problems such as reduced strength, reduced heat insulation performance, and deteriorated assemblability due to reduced space in the vacuum heat insulating material. Therefore, the wall thickness is preferably about 20 mm or more. Therefore, the wall thickness of the heat insulating box such as the side wall 790, the back wall 730, the ceiling wall 740, the bottom wall 730, or the partition wall 24, the wall thickness of the refrigerator, or the wall thickness of the device is in the range of 20 mm to 40 mm. It is better to make it.
In addition, a door that closes the front opening of the storage room is provided, and the door is formed of a door frame formed of a door frame and a door inner plate, and a glass surface material provided in the door frame, A vacuum heat insulating material provided in a door internal space formed by the glass surface material and the door outer shell, and a foam heat insulating material filled, applied, or enclosed in the door internal space, the glass surface material and the vacuum heat insulating material. If the density after foaming of the foamed thermal insulation material filled, coated or enclosed between the materials is larger than 60 kg / m 3 and the thickness is smaller than 10 mm, the thermal insulation performance is good and the volume in the storage chamber is large. A refrigerator with excellent design by use of a face material and improved box strength can be obtained.

また、制御基板室３１の内部、あるいは近傍に設けられ、赤外線接続あるいは無線接続あるいは有線接続（電灯線接続やインターネット回線接続やＬＡＮ接続やＵＳＢ接続など）にて冷蔵庫１の外部に配置される外部機器と機器情報を送受信可能な送受信手段を備えるようにすれば、冷蔵庫の機器情報を送信したり、あるいは外部機器からの情報を受信することができるので、冷蔵庫や他機器の情報を冷蔵庫や携帯端末や外部機器に表示させることができる。また、サーバからの指示情報を受けて冷蔵庫を制御することもできる。また、冷蔵庫や携帯端末から他機器を制御することも可能になる。   Further, an external device provided inside or in the vicinity of the control board chamber 31 and arranged outside the refrigerator 1 by infrared connection, wireless connection, or wired connection (power line connection, Internet line connection, LAN connection, USB connection, etc.). If a transmission / reception means capable of transmitting / receiving device information to / from the device is provided, the device information of the refrigerator can be transmitted or information from an external device can be received. It can be displayed on a terminal or an external device. In addition, the refrigerator can be controlled by receiving instruction information from the server. It is also possible to control other devices from a refrigerator or a portable terminal.

また、制御基板室３１に制御基板室用カバーを設け、制御基板室３１内あるいは制御基板用カバーにネットワーク接続用の端子を備えるようにすれば、冷蔵庫設置後に無線アダプタやＷｉＦｉアダプタや有線ＬＡＮなどを容易に接続することができ、ネットワークを構築することができる。もちろん、ネットワーク接続用の端子は、天井壁７３０あるいは側壁７９０であれば、容易に接続できるので問題ない。   If a control board room cover is provided in the control board room 31 and a terminal for network connection is provided in the control board room 31 or in the control board cover, a wireless adapter, a WiFi adapter, a wired LAN, etc. Can be easily connected and a network can be constructed. Of course, if the terminal for network connection is the ceiling wall 730 or the side wall 790, there is no problem because it can be easily connected.

また、少なくとも貯蔵室内の背面の一部あるいは第２の凹部４４１を覆うカバー部材（第１風路部品７６２）が、冷気風路７６０の少なくとも一部を形成あるいは冷気風路７６０の少なくとも一部を覆う風路カバー部と、風路カバー部から幅方向に延出し背面壁７３０あるいは凹部４４０の少なくとも一部を覆う背面カバー部と、を備えるようにすれば、カバー部材（第１風路部品７６２）によって、背面壁７３０や凸部４５０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   In addition, a cover member (first air passage component 762) covering at least a part of the rear surface of the storage chamber or the second recess 441 forms at least a part of the cold air passage 760 or at least a part of the cold air passage 760. A cover member (first airway component 762) can be provided by including an airway cover part to cover and a back cover part extending in the width direction from the airway cover part and covering at least a part of the back wall 730 or the recess 440. ) Can cover at least a part of the back wall 730 and the convex portion 450, so that the design is improved and the assemblability is also improved.

また、少なくとも貯蔵室内の背面の一部あるいは第２の凹部４４１を覆うカバー部材（第１風路部品７６２）が、冷気風路７６０の少なくとも一部を形成あるいは冷気風路７６０の少なくとも一部を覆う風路カバー部と、風路カバー部から幅方向に延出し背面壁７３０あるいは凹部４４０の少なくとも一部を覆う背面カバー部と、背面カバー部に接続あるいは背面カバー部に一体に形成されて側壁７９０の少なくとも一部を覆う側面カバー部と、を備えるようにすれば、カバー部材（第１風路部品７６２）によって、背面壁７３０や側壁７９０や凸部４５０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   In addition, a cover member (first air passage component 762) covering at least a part of the rear surface of the storage chamber or the second recess 441 forms at least a part of the cold air passage 760 or at least a part of the cold air passage 760. An air passage cover portion that covers, a back cover portion that extends in the width direction from the air passage cover portion and covers at least a part of the back wall 730 or the recess 440; and a side wall that is connected to the back cover portion or integrally formed with the back cover portion And a side cover portion that covers at least a portion of 790, the cover member (first air passage component 762) can cover at least a portion of the back wall 730, the side wall 790, and the convex portion 450. Therefore, the designability is improved and the assemblability is also improved.

また、背面カバー部を背面壁７３０あるいは凹部４４０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるか、あるいは、側面カバー部を側壁７９０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにすれば、カバー部材（第１風路部品７６２）によって、背面壁７３０や側壁７９０や凸部４５０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   Further, the back cover part is attached to the back wall 730, the recessed part 440 or the inner box 750 forming the convex part 450 by fixing or holding it, or the side cover part is attached to the inner box 750 or the convex part 450. If attached to the 750 by being fixed or held or the like, at least a part of the back wall 730, the side wall 790, and the convex portion 450 can be covered by the cover member (first air passage component 762). As a result, assembly is improved.

また、少なくとも貯蔵室内の背面の一部を覆うカバー部材（第１風路部品７６２）が、冷気風路７６０の少なくとも一部を形成あるいは冷気風路７６０の少なくとも一部を覆う風路カバー部と、風路カバー部から幅方向（左右方向あるいは側壁７９０方向）に延出し背面壁７３０あるいは凹部４４０の少なくとも一部を覆う背面カバー部と、風路カバー部と接続あるいは風路カバー部と一体に形成されて背面壁７３０の上部あるいは下部に設けられる仕切壁２４（天井壁７４０あるいは底面壁７８０を含む）の少なくとも一部を覆うように背面壁７３０の上端部あるいは下端部から前面開口方向に延出して設けられる上下壁カバー部と、を備えるようにすれば、カバー部材（第１風路部品７６２）によって、背面壁７３０や仕切壁２４や天井壁７３０や底面壁７８０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   Further, a cover member (first air passage component 762) that covers at least a part of the back surface of the storage chamber forms at least a part of the cold air passage 760 or an air passage cover portion that covers at least a part of the cold air passage 760; A rear cover portion extending in the width direction (left-right direction or side wall 790 direction) from the air passage cover portion and covering at least a part of the rear wall 730 or the recess 440; and connected to the air passage cover portion or integrally with the air passage cover portion Extending from the upper end or lower end of the rear wall 730 in the direction of the front opening so as to cover at least a part of the partition wall 24 (including the ceiling wall 740 or the bottom wall 780) provided at the upper part or the lower part of the rear wall 730. And the upper and lower wall cover portions provided out of the rear wall 730, the partition wall 24, and the ceiling by the cover member (first air passage component 762). It can be covered at least a portion of the 730 and bottom wall 780, improves design properties, also improved assemblability.

また、背面カバー部を背面壁７３０あるいは凹部４４０あるいは凸部４５０を形成する内箱７５０に固定あるいは保持するなどして取り付けるか、あるいは、上下壁カバー部を背面壁７３０の上下方向に設けられる仕切壁２４（天井壁７４０あるいは底面壁７８０を含む）を形成する内箱７５０に固定あるいは保持するなどして取り付けるようにすれば、カバー部材（第１風路部品７６２）によって、背面壁７３０や仕切壁２４や天井壁７３０や底面壁７８０の少なくとも一部を覆うことができるので、意匠性が向上し、組立性も向上する。   Further, the back cover part is attached to the back wall 730, the concave part 440, or the inner box 750 forming the convex part 450 by being fixed or held, or the upper and lower wall cover parts are provided in the vertical direction of the rear wall 730. If it is attached to the inner box 750 forming the wall 24 (including the ceiling wall 740 or the bottom wall 780) by fixing or holding it, the cover member (first air passage component 762) can be used to form the rear wall 730 or partition. Since at least a part of the wall 24, the ceiling wall 730, and the bottom wall 780 can be covered, the design is improved and the assemblability is also improved.

１ 冷蔵庫、１Ａ 機械室、２ 冷蔵室、２Ａ チルド室、２Ｐ 内側壁、２Ｘ 略密閉された容器、２Ｙ 略密閉された容器、３ 製氷室、４ 切替室、５ 野菜室、６ 冷凍室、７ 冷蔵室扉、７Ａ 冷蔵室扉左、７Ｂ 冷蔵室扉右、８ 製氷室扉、９ 切替室扉、１０ 野菜室扉、１１ 冷凍室扉、１２ 圧縮機、１３ 冷却器、１４ 冷気循環用ファン、１５ 切替室ダンパ、１６ 冷気風路、１７ 切替室用冷気風路、１８ 冷凍室用冷気風路、１９ 切替室サーミスタ、２１ 貯蔵品収納空間、２２ サーモパイル、２４ 仕切壁、３０ 制御装置、３０ａ マイコン、３１ 制御基板室、３３ 切欠き部、３４ 板金カバー、５０ 冷気風路、５１ 仕切壁、５３ 冷気風路、５５ 冷蔵室ダンパ、６０ 操作パネル、６０ａ 部屋選択スイッチ、６０ｂ 温度帯切替スイッチ、６０ｃ 瞬冷凍スイッチ、６０ｄ 製氷切替スイッチ、６０ｅ ミスト供給スイッチ、８０ 棚、１３１ 冷却器室、１５０ 除霜用ヒータ、１５１ ヒータルーフ、１５２ 水受け容器、１５４ 除霜水受け部、１５５ 除霜水排出口、２００ ミスト装置（静電霧化装置）、２５０ 貯蔵品収納スペース、３１５ 空間（壁内空間）、４００ 真空断熱材、４１０ 冷蔵室戻り風路、４２０ 冷凍室戻り風路、４３０ 野菜室戻り風路、４４０ 凹部、４４１ 第２の凹部、４５０ 凸部、４５１ 凸部の前面側端面、５２０ ケース、５２５ ケース段差部、７００ 断熱箱体、７０１ 断熱材、７０３，７０４ 充填口（注入口）、７１０ 外箱、７１７ 内箱凹部、７１８ 凹部段部上、７１９ 凹部段部下（レール部材載置部）、７２０ パイプ、７２５ 冷媒配管、７２７ 内箱凸部、７２８ 凸部段部上、７２９ 凸部段部下、７３０ 背面壁、７３１ 補強部材、７３２ 補強部材延出部上、７３３ 補強部材延出部下、７３４ 補強部材本体部、７３５ レール固定部材、７４０ 天井壁、７５０ 内箱、７５５ レール部（レール取り付け部）、７５７ レール部端部（レール部材載置部）、７６０ 冷気風路、７６２ 第１風路部品、７６３ 突出部、７６４ 第２風路部品、７６５ 風路背面部材、７６６ 風路側面部材、７６８ 冷気供給口、７６９ 第１風路部品の前面側端面、７７０ 空間（収納スペース）、７７５ 段差部、７７６ 段差部、７８０ 底面壁、７９０ 側壁、７９１，７９２ 貯蔵室内面壁、７９７ （凸部の）側壁側端部、７９８ （凸部の）背面壁側端部、８１０ レール部材、８１１ 上レール（移動レール）、８１２ 下レール（固定レール）、８１３ 中間レール、８２０ レール支持部、８３０ ケース支持部、８３５ ケース支持部固定部材、８３６ レール支持部固定部材、９００ 照明装置、９１０ 突起部。   1 Refrigerator, 1A Machine room, 2 Refrigerated room, 2A Chilled room, 2P Inner wall, 2X Closed container, 2Y Closed container, 3 Ice making room, 4 Switching room, 5 Vegetable room, 6 Freezer room, 7 Refrigerating room door, 7A Refrigerating room door left, 7B Refrigerating room door right, 8 Ice making room door, 9 Switching room door, 10 Vegetable room door, 11 Freezer room door, 12 Compressor, 13 Cooler, 14 Cooling air circulation fan, DESCRIPTION OF SYMBOLS 15 Switching room damper, 16 Cold air path, 17 Cold room air path for switching rooms, 18 Cold air path for freezing rooms, 19 Switching room thermistor, 21 Storage goods storage space, 22 Thermopile, 24 Partition wall, 30 Control apparatus, 30a Microcomputer 31 Control board room, 33 Notch, 34 Sheet metal cover, 50 Cold air path, 51 Partition wall, 53 Cold air path, 55 Cold room damper, 60 Operation panel, 60a Room selection switch, 60b Temperature zone changeover switch, 60c Instantaneous freezing switch, 60d Ice making changeover switch, 60e Mist supply switch, 80 shelves, 131 cooler room, 150 heater for defrosting, 151 heater roof, 152 water receiving container, 154 defrosting water receiving part, 155 Defrost water discharge port, 200 mist device (electrostatic atomization device), 250 storage product storage space, 315 space (inside wall space), 400 vacuum heat insulating material, 410 refrigerator compartment return air passage, 420 freezer compartment return air passage, 430 Vegetable room return air passage, 440 concave portion, 441 second concave portion, 450 convex portion, 451 front side end surface of convex portion, 520 case, 525 case stepped portion, 700 heat insulating box, 701 heat insulating material, 703, 704 filling port (Injection port), 710 outer box, 717 inner box recess, 718 above recess step, 719 below recess step (rail member mounting portion) 720 Pipe, 725 Refrigerant piping, 727 Inner box convex part, 728 On convex part step part, 729 Below convex part step part, 730 Back wall, 731 Reinforcement member, 732 On reinforcement member extension part, 733 On reinforcement member extension part, 734 Reinforcing member main body, 735 Rail fixing member, 740 Ceiling wall, 750 Inner box, 755 Rail part (rail mounting part), 757 Rail part end part (rail member mounting part), 760 Cold air path, 762 First air path Parts, 763 Projection, 764 Second airway part, 765 Airway rear member, 766 Airway side member, 768 Cold air supply port, 769 Front side end face of first airway part, 770 Space (storage space), 775 Step Part, 776 Stepped part, 780 Bottom wall, 790 Side wall, 791, 792 Storage room inner surface wall, 797 Side wall side end of convex part, 798 Rear side of convex part Wall side end portion, 810 rail member, 811 upper rail (moving rail), 812 lower rail (fixed rail), 813 intermediate rail, 820 rail support portion, 830 case support portion, 835 case support portion fixing member, 836 rail support portion Fixing member, 900 illumination device, 910 Protrusion.

Claims (32)

内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、
前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、
前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に形成され前面側に突出するように設けられた凸部と、
前記凸部の側面と前記背面壁を形成する前記内箱とによって形成され後方側に凹んだ凹部と、
前記凹部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、
を備え、
前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成されて前記第２部材が前記内箱に当接して取り付けられており、
前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用される冷蔵庫。 In a refrigerator having a storage room formed from an inner box and an outer box, having a back wall and a side wall,
A vacuum heat insulating material provided between the inner box and the outer box forming the back wall;
A protrusion provided so as to protrude to the front side is formed in a corner portion between the inner box forming said inner box and said rear wall forming the side wall,
A concave portion formed by the side surface of the convex portion and the inner box forming the back wall and recessed to the rear side;
A cover member attached to the recess and provided to cover at least a part of the recess;
With
The cover member is composed of a first member as a cover member and a second member provided on the back side of the first member, and the second member is attached in contact with the inner box ,
A refrigerator that is used in a cold air passage with at least a part of the recess covered with the cover member. 内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、
前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、
前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成され前面側に突出するように設けられた凸部と、
前記凸部の側面と前記背面壁を形成する前記内箱とによって前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成され後方側に凹んだ凹部と、
前記凹部の第１の取り付け部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、
を備え、
前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成され、
前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用される冷蔵庫。 In a refrigerator having a storage room formed from an inner box and an outer box, having a back wall and a side wall,
A vacuum heat insulating material provided between the inner box and the outer box forming the back wall;
The inner box with the convex portion provided so as to protrude substantially to the front side is formed over the entire height range of the vertical direction of the storage compartment in the corner portion between the inner box forming said rear wall forming the side wall When,
A recessed portion formed over substantially the entire height range in the vertical direction of the storage chamber by the side surface of the protruding portion and the inner box forming the back wall , and recessed on the rear side;
A cover member attached to the first attachment portion of the recess and provided to cover at least a part of the recess;
With
The cover member is composed of a first member as a cover member and a second member provided on the back side of the first member,
A refrigerator that is used in a cold air passage with at least a part of the recess covered with the cover member. 内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、
前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、
前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に形成され前面側に突出するように設けられた凸部と、
前記凸部の側面と前記背面壁を形成する前記内箱とによって形成され後方側に凹んだ凹部と、
前記凹部を形成する前記内箱に形成された第２の凹部と、
前記凹部に取り付けられ、前記第２の凹部を覆うように設けられたカバー部材と、
を備え、
前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成され、
前記第２の凹部が前記カバー部材で覆われて冷気風路に使用される冷蔵庫。 In a refrigerator having a storage room formed from an inner box and an outer box, having a back wall and a side wall,
A vacuum heat insulating material provided between the inner box and the outer box forming the back wall;
A protrusion provided so as to protrude to the front side is formed in a corner portion between the inner box forming said inner box and said rear wall forming the side wall,
A concave portion formed by the side surface of the convex portion and the inner box forming the back wall and recessed to the rear side;
A second recess formed in the inner box forming the recess;
A cover member attached to the recess and provided to cover the second recess;
With
The cover member is composed of a first member as a cover member and a second member provided on the back side of the first member,
A refrigerator in which the second recess is covered with the cover member and used for a cold air passage. 内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、
前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、
前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に形成され、水平断面が斜辺部を有する略三角形状の凸部と、
前記斜辺部と前記背面壁を形成する前記内箱とによって形成された凹部と、
前記凹部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、を備え、
前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成されて前記第２部材が前記内箱に当接して取り付けられており、
前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用される冷蔵庫。 In a refrigerator having a storage room formed from an inner box and an outer box, having a back wall and a side wall,
A vacuum heat insulating material provided between the inner box and the outer box forming the back wall;
Is formed in the corner portion between the inner box forming said inner box and said rear wall forming the side wall, a substantially triangular protrusion horizontal section has a slant portion,
A recess formed by the oblique side and the inner box forming the back wall;
A cover member attached to the recess and provided to cover at least a part of the recess,
The cover member is composed of a first member as a cover member and a second member provided on the back side of the first member, and the second member is attached in contact with the inner box ,
A refrigerator that is used in a cold air passage with at least a part of the recess covered with the cover member. 内箱と外箱から形成され、背面壁、側壁を有する貯蔵室を備えた冷蔵庫において、
前記背面壁を形成する前記内箱と前記外箱との間に設けられた真空断熱材と、
前記側壁を形成する前記内箱と前記背面壁を形成する前記内箱とのコーナー部に前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成され、水平断面が斜辺部を有する略三角形状の凸部と、
前記斜辺部と前記背面壁を形成する前記内箱とによって前記貯蔵室の上下方向のほぼ全高さ範囲にわたって形成された凹部と、
前記凹部の第１の取り付け部に取り付けられ、前記凹部の少なくとも一部を覆うように設けられたカバー部材と、を備え、
前記カバー部材は、カバー部材としての第１部材と、前記第１部材の背面側に設けられた第２部材とから構成され、
前記凹部の少なくとも一部が前記カバー部材で覆われて冷気風路に使用される冷蔵庫。 In a refrigerator having a storage room formed from an inner box and an outer box, having a back wall and a side wall,
A vacuum heat insulating material provided between the inner box and the outer box forming the back wall;
Is formed over substantially the entire height range of the vertical direction of the storage compartment in the corner portion between the inner box forming said inner box and said rear wall forming the side wall, a horizontal cross-section substantially triangular with oblique side A convex part,
A recess formed over substantially the entire height range in the vertical direction of the storage chamber by the oblique side and the inner box forming the back wall;
A cover member attached to the first attachment portion of the recess and provided to cover at least a part of the recess,
The cover member is composed of a first member as a cover member and a second member provided on the back side of the first member,
A refrigerator that is used in a cold air passage with at least a part of the recess covered with the cover member. 前記凹部の前記内箱に前記カバー部材を取り付けるための第１の取り付け部が設けられている請求項１、請求項３または請求項４に記載の冷蔵庫。 The refrigerator according to claim 1, 3 or 4 , wherein a first attachment part for attaching the cover member to the inner box of the recess is provided. 前記第１の取り付け部は前記内箱とは別体で形成された請求項２、請求項５または請求項６に記載の冷蔵庫。 The refrigerator according to claim 2, 5 or 6, wherein the first attachment portion is formed separately from the inner box. 前記凸部の水平断面が、斜辺部を有する略三角形状であり、
前記凹部が、前記斜辺部と前記背面壁とによって形成された請求項１〜３のいずれか一項に記載の冷蔵庫。 The horizontal cross section of the convex part is a substantially triangular shape having a hypotenuse part,
The refrigerator according to any one of claims 1 to 3, wherein the concave portion is formed by the oblique side portion and the back wall. 前記内箱と前記真空断熱材の間に充填もしくは封入され、前記内箱と前記真空断熱材とを接着、固着、もしくは固定している第１の介在部材と、
前記真空断熱材と前記外箱とを接着、固着、もしくは固定し発泡断熱材とは異なる第２の介在部材と、を備えた請求項１〜８のいずれか一項に記載の冷蔵庫。 A first interposed member that is filled or enclosed between the inner box and the vacuum heat insulating material, and that adheres, fixes, or fixes the inner box and the vacuum heat insulating material;
The refrigerator as described in any one of Claims 1-8 provided with the 2nd interposition member which adhere | attaches, adheres, or fixes the said vacuum heat insulating material and the said outer box, and differs from a foam heat insulating material. 前記第１の介在部材が、前記凹部において前記内箱と前記真空断熱材の間の一部範囲に充填もしくは封入されている請求項９に記載の冷蔵庫。   The refrigerator according to claim 9, wherein the first interposed member is filled or sealed in a partial range between the inner box and the vacuum heat insulating material in the recess. 前記背面壁を形成する前記外箱に設けられ、前記第１の介在部材が充填または封入された注入口と、を備え、
前記注入口の内側端部が前記凸部の範囲に設けられている請求項９または請求項１０に記載の冷蔵庫。 An inlet provided in the outer box forming the back wall and filled or sealed with the first interposition member;
The refrigerator of Claim 9 or Claim 10 in which the inner side edge part of the said inlet is provided in the range of the said convex part. 前記側壁の厚さをＴ１、前記凸部の幅方向長さをＡとした時、前記背面壁の幅方向端部から前記注入口の幅方向内側端部までの距離Ｙ１が
Ｙ１＜＝Ｔ１＋Ａ
である請求項１１に記載の冷蔵庫。 When the thickness of the side wall is T1 and the length in the width direction of the convex portion is A, the distance Y1 from the width direction end of the back wall to the width direction inner end of the injection port is Y1 <= T1 + A
The refrigerator according to claim 11. 前記真空断熱材は、前記注入口と対向する部位に前記注入口と干渉しないように切り欠かれたまたは開口された切り欠き部が設けられている請求項１１または請求項１２に記載の冷蔵庫。   The refrigerator according to claim 11 or 12, wherein the vacuum heat insulating material is provided with a cutout portion that is cut or opened so as not to interfere with the injection port at a portion facing the injection port. 前記冷蔵庫の背面に設けられた機械室を備え、
前記注入口は、前記機械室を除く前記背面壁の４隅近傍に設けられている請求項１１〜１３のいずれか一項に記載の冷蔵庫。 A machine room provided on the back of the refrigerator;
The refrigerator according to any one of claims 11 to 13, wherein the inlet is provided in the vicinity of four corners of the back wall excluding the machine room. 前記第１の介在部材の厚さ／（前記第１の介在部材の厚さ＋前記真空断熱材の厚さ）が０．３以下である請求項９〜１４のいずれか一項に記載の冷蔵庫。   The thickness of said 1st interposed member / (thickness of said 1st interposed member + thickness of said vacuum heat insulating material) is 0.3 or less, The refrigerator as described in any one of Claims 9-14 . 前記第１の介在部材が硬質ウレタンフォームであり、前記硬質ウレタンフォームの曲げ弾性率が１５ＭＰａ以上１５０ＭＰａ以下である請求項９〜１５のいずれか一項に記載の冷蔵庫。   The refrigerator according to any one of claims 9 to 15, wherein the first interposed member is a rigid urethane foam, and the flexural modulus of the rigid urethane foam is 15 MPa or more and 150 MPa or less. 前記第２の凹部は、前記凹部の上下方向に設けられた溝形状である請求項３に記載の冷蔵庫。   The refrigerator according to claim 3, wherein the second recess has a groove shape provided in a vertical direction of the recess. 前記凹部の幅方向に少なくとも２つ設けられた第２の凸部を備え、
前記第２の凹部が前記第２の凸部間に形成されている請求項３または請求項１７に記載の冷蔵庫。 A second protrusion provided at least two in the width direction of the recess;
The refrigerator according to claim 3 or 17, wherein the second recess is formed between the second protrusions. 前記凹部における前記第１の介在部材の厚さが１０ｍｍ未満である請求項９〜１６のいずれか一項に記載の冷蔵庫。   The refrigerator according to any one of claims 9 to 16, wherein a thickness of the first interposed member in the recess is less than 10 mm. 前記真空断熱材が前記凸部と幅方向に一部が重なるように配置され、
前記真空断熱材は、前記凸部において前記内箱、前記第１の介在部材、及び前記外箱と一体に接着、固着、もしくは固定された請求項９〜１６、１９のいずれか一項に記載の冷蔵庫。 The vacuum heat insulating material is disposed so as to partially overlap the convex portion in the width direction,
20. The vacuum heat insulating material according to claim 9, wherein the vacuum heat insulating material is bonded, fixed, or fixed integrally with the inner box, the first interposed member, and the outer box at the convex portion. Refrigerator. 前記側壁を形成する前記内箱と前記側壁を形成する前記外箱との間に設けられた第２の真空断熱材と、
前記第２の真空断熱材と前記側壁を形成する前記内箱との間に充填された前記第１の介在部材と、を備え、
前記第２の真空断熱材が前記凸部と一部が重なるように配置され、
前記第２の真空断熱材は、前記凸部において前記内箱、前記第１の介在部材、及び前記外箱と一体に接着、固着、もしくは固定された請求項９〜１６、１９〜２０のいずれか一項に記載の冷蔵庫。 A second vacuum insulation material disposed between the outer box to form the side wall and the inner box forming said side wall,
And a first intervening member that is filled between the inner box forming the side wall and the second vacuum heat insulating material,
The second vacuum heat insulating material is disposed so as to partially overlap the convex portion,
The said 2nd vacuum heat insulating material is any one of Claims 9-16 and 19-20 which were adhere | attached, adhere | attached, or fixed integrally with the said inner box, the said 1st interposition member, and the said outer box in the said convex part. A refrigerator according to claim 1. 最上段に配置された冷蔵室、最下段に配置された冷凍室、前記冷凍室の上に配置された野菜室を備え、前記貯蔵室が前記冷蔵室である請求項１〜２１のいずれか一項に記載の冷蔵庫。   The refrigeration room arrange | positioned at the uppermost stage, the freezer compartment arrange | positioned at the lowest stage, and the vegetable compartment arrange | positioned on the said freezer compartment, The said storage room is the said refrigeration room, The any one of Claims 1-21 The refrigerator according to item. 前記冷蔵室、前記野菜室、前記冷凍室は仕切壁で区画されており、前記仕切壁内には第３の真空断熱材が配置されている請求項２２に記載の冷蔵庫。   The refrigerator according to claim 22, wherein the refrigerator compartment, the vegetable compartment, and the freezer compartment are partitioned by a partition wall, and a third vacuum heat insulating material is disposed in the partition wall. 前記仕切壁内の内部空間に充填された接着剤と、を備え
前記接着剤が硬質ウレタンフォームであり、前記硬質ウレタンフォームの厚さが１０ｍｍ未満である請求項２３に記載の冷蔵庫。 The refrigerator according to claim 23, further comprising: an adhesive filled in an internal space in the partition wall, wherein the adhesive is a hard urethane foam, and the thickness of the hard urethane foam is less than 10 mm. 冷蔵室用冷却器と、冷凍室用冷却器と、を備え、
前記冷蔵室用冷却器が前記冷蔵室あるいは前記野菜室の後方に設けられている請求項２２〜２４のいずれか一項に記載の冷蔵庫。 A refrigerator for the refrigerator compartment, and a refrigerator for the freezer compartment,
The refrigerator according to any one of claims 22 to 24, wherein the refrigerator for the refrigerator compartment is provided behind the refrigerator compartment or the vegetable compartment. 前記カバー部材には、前記第１の取り付け部に取り付けられる第２の取り付け部が設けられている請求項６または請求項７に記載の冷蔵庫。   The refrigerator according to claim 6 or 7, wherein the cover member is provided with a second attachment portion attached to the first attachment portion. 前記カバー部材がネジ、引っ掛け構造、嵌め込構造あるいは凹凸嵌合構造により前記凹部に固定あるいは保持されている請求項１〜２６のいずれか一項に記載の冷蔵庫。   The refrigerator according to any one of claims 1 to 26, wherein the cover member is fixed or held in the recess by a screw, a hook structure, a fitting structure, or an uneven fitting structure. 前記冷気風路の断面形状が幅方向に細長い楕円状である請求項１〜２７のいずれか一項に記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 27, wherein a cross-sectional shape of the cold air passage is an ellipse elongated in a width direction. 前記第２部材が独立した風路を形成している請求項１〜２８のいずれか一項に記載の冷蔵庫。   The refrigerator according to any one of claims 1 to 28, wherein the second member forms an independent air passage. 前記貯蔵室の前面開口部を閉塞する扉を備え、
前記扉は、扉枠部と扉内板で形成された扉外郭と、前記扉外郭に設けられたガラス面材と、で形成されており、
前記ガラス面材と前記扉外郭とで形成される扉内部空間に設けられた第４の真空断熱材と、前記扉内部空間に充填あるいは塗布あるいは封入される発泡断熱材と、を備えた請求項１〜２９のいずれか一項に記載の冷蔵庫。 A door for closing the front opening of the storage room;
The door is formed of a door frame formed of a door frame part and a door inner plate, and a glass face material provided on the door frame,
A fourth vacuum heat insulating material provided in a door internal space formed by the glass face material and the door outer shell, and a foam heat insulating material filled, applied, or enclosed in the door internal space. The refrigerator as described in any one of 1-29. 携帯電話、携帯端末あるいはパソコンが接続できる端子を備え、
前記携帯電話、前記携帯端末あるいは前記パソコンの充電が行える請求項１〜３０のいずれか一項に記載の冷蔵庫。 It is equipped with a terminal that can be connected to a mobile phone, mobile terminal or personal computer.
The refrigerator as described in any one of Claims 1-30 which can charge the said mobile telephone, the said portable terminal, or the said personal computer. 外部機器と送受信可能な送受信手段を備え、
前記冷蔵庫の機器情報、天気予報または災害情報を前記外部機器と送受信可能な請求項１〜３１のいずれか一項に記載の冷蔵庫。 A transmission / reception means capable of transmission / reception with an external device is provided.
The refrigerator as described in any one of Claims 1-31 which can transmit / receive the apparatus information, weather forecast, or disaster information of the said refrigerator with the said external apparatus.
JP2016158677A 2013-06-07 2016-08-12 refrigerator Active JP6195653B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2013120514 2013-06-07
JP2013120514 2013-06-07
JP2013169345 2013-08-19
JP2013169345 2013-08-19

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2015521492A Division JP6140279B2 (en) 2013-06-07 2014-06-05 Insulated box and refrigerator

Publications (2)

Publication Number Publication Date
JP2016188760A JP2016188760A (en) 2016-11-04
JP6195653B2 true JP6195653B2 (en) 2017-09-13

Family

ID=52008240

Family Applications (7)

Application Number Title Priority Date Filing Date
JP2015521492A Active JP6140279B2 (en) 2013-06-07 2014-06-05 Insulated box and refrigerator
JP2015237994A Active JP6062025B2 (en) 2013-06-07 2015-12-04 refrigerator
JP2016107376A Active JP6195644B2 (en) 2013-06-07 2016-05-30 refrigerator
JP2016158677A Active JP6195653B2 (en) 2013-06-07 2016-08-12 refrigerator
JP2017089952A Pending JP2017150811A (en) 2013-06-07 2017-04-28 refrigerator
JP2017241984A Active JP6408685B2 (en) 2013-06-07 2017-12-18 refrigerator
JP2018151436A Active JP6854789B2 (en) 2013-06-07 2018-08-10 refrigerator

Family Applications Before (3)

Application Number Title Priority Date Filing Date
JP2015521492A Active JP6140279B2 (en) 2013-06-07 2014-06-05 Insulated box and refrigerator
JP2015237994A Active JP6062025B2 (en) 2013-06-07 2015-12-04 refrigerator
JP2016107376A Active JP6195644B2 (en) 2013-06-07 2016-05-30 refrigerator

Family Applications After (3)

Application Number Title Priority Date Filing Date
JP2017089952A Pending JP2017150811A (en) 2013-06-07 2017-04-28 refrigerator
JP2017241984A Active JP6408685B2 (en) 2013-06-07 2017-12-18 refrigerator
JP2018151436A Active JP6854789B2 (en) 2013-06-07 2018-08-10 refrigerator

Country Status (9)

Country Link
JP (7) JP6140279B2 (en)
CN (5) CN105393073B (en)
AU (4) AU2014275821B2 (en)
HK (1) HK1217530A1 (en)
MY (1) MY183066A (en)
RU (1) RU2629967C2 (en)
SG (5) SG11201509101TA (en)
TW (2) TWI638125B (en)
WO (1) WO2014196609A1 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6655277B2 (en) * 2014-06-02 2020-02-26 東芝ライフスタイル株式会社 refrigerator
AU2015407161B2 (en) * 2015-08-26 2019-04-18 Mitsubishi Electric Corporation Vacuum thermal insulator and refrigerator
WO2018016053A1 (en) * 2016-07-21 2018-01-25 三菱電機株式会社 Refrigerator communicable with communication device
JP6948165B2 (en) * 2017-06-12 2021-10-13 東芝ライフスタイル株式会社 refrigerator
JP6635095B2 (en) * 2017-07-19 2020-01-22 ダイキン工業株式会社 Rotary compressor
CN107514861B (en) * 2017-08-24 2020-01-17 滁州银兴新材料科技有限公司 Vacuum insulation panel mounting clamping groove for glue bonding free
JP6909738B2 (en) * 2018-01-31 2021-07-28 日立グローバルライフソリューションズ株式会社 refrigerator
CN109900058B (en) * 2017-12-11 2021-11-12 日立环球生活方案株式会社 Refrigerator, premix polyol composition and rigid polyurethane foam
KR102530909B1 (en) 2017-12-13 2023-05-11 엘지전자 주식회사 Vacuum adiabatic body and refrigerator
KR102466446B1 (en) * 2017-12-13 2022-11-11 엘지전자 주식회사 Vacuum adiabatic body and refrigerator
KR102568737B1 (en) 2017-12-13 2023-08-21 엘지전자 주식회사 Vacuum adiabatic body and refrigerator
KR102466448B1 (en) 2017-12-13 2022-11-11 엘지전자 주식회사 Vacuum adiabatic body and refrigerator
KR102511095B1 (en) 2017-12-13 2023-03-16 엘지전자 주식회사 Vacuum adiabatic body and refrigerator
JP2020034206A (en) * 2018-08-29 2020-03-05 日立グローバルライフソリューションズ株式会社 refrigerator
JP7244303B2 (en) * 2019-03-06 2023-03-22 東芝ライフスタイル株式会社 refrigerator
JP6838618B2 (en) * 2019-04-15 2021-03-03 ダイキン工業株式会社 Air conditioner in the refrigerator
US11320194B2 (en) 2019-04-30 2022-05-03 Whirlpool Corporation Barrier layer for insulated structures
US11460143B2 (en) * 2019-05-21 2022-10-04 Whirlpool Corporation Collapsible pattern
JP7301137B2 (en) * 2019-08-02 2023-06-30 三菱電機株式会社 refrigerator
JP2021067412A (en) * 2019-10-24 2021-04-30 東芝ライフスタイル株式会社 refrigerator
JP7272934B2 (en) * 2019-11-13 2023-05-12 東芝ライフスタイル株式会社 refrigerator
CN111006431A (en) * 2019-11-19 2020-04-14 长虹美菱股份有限公司 Refrigeration device with ice fresh room
WO2021100174A1 (en) * 2019-11-21 2021-05-27 三菱電機株式会社 Refrigerator
JP7409890B2 (en) 2020-01-31 2024-01-09 東芝ライフスタイル株式会社 refrigerator
JP2021162285A (en) * 2020-04-03 2021-10-11 東芝ライフスタイル株式会社 Refrigerator door and refrigerator
JP7227196B2 (en) * 2020-07-22 2023-02-21 東芝ライフスタイル株式会社 refrigerator
CN114076447A (en) * 2020-08-14 2022-02-22 海信（山东）冰箱有限公司 Refrigerator and mounting structure member applied to refrigerator
JP2021009019A (en) * 2020-10-19 2021-01-28 パナソニックＩｐマネジメント株式会社 refrigerator
CN112628994A (en) * 2021-01-11 2021-04-09 青岛海尔空调器有限总公司 Sliding panel and vertical air conditioner
EP4293304A1 (en) * 2021-02-15 2023-12-20 Hitachi Global Life Solutions, Inc. Refrigerator
DE102021202364A1 (en) * 2021-03-11 2022-09-15 BSH Hausgeräte GmbH Backing part for a household refrigeration appliance component, arrangement with a household refrigeration appliance component and a backing part, and assembly method
AU2021473668A1 (en) * 2021-11-15 2024-03-21 Mitsubishi Electric Corporation Refrigerator
US20240066942A1 (en) * 2022-08-24 2024-02-29 Caleb Arthur Sommers System for transporting perishable goods utilizing phase change materials and waste heat

Family Cites Families (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4736593Y1 (en) * 1969-06-02 1972-11-06
JPS5848536Y2 (en) * 1976-08-26 1983-11-05 三洋電機株式会社 insulation box body
JPS5463263U (en) * 1977-10-13 1979-05-04
JPS62200178A (en) * 1986-02-28 1987-09-03 株式会社日立製作所 Refrigerator
JPS63233286A (en) * 1987-03-20 1988-09-28 松下冷機株式会社 Manufacture of refrigerator
JPH03225182A (en) * 1990-01-30 1991-10-04 Asahi Chem Ind Co Ltd Heat insulating material for refrigerator
JPH04103582U (en) * 1991-02-08 1992-09-07 日本建鐵株式会社 commercial refrigerator
JP2755041B2 (en) * 1992-05-15 1998-05-20 三菱電機株式会社 Display mechanism of refrigerator
JP3213454B2 (en) * 1993-09-30 2001-10-02 三洋電機株式会社 Insulated box
JPH07120138A (en) * 1993-10-25 1995-05-12 Hitachi Ltd Vacuum insulated box
JP3143313B2 (en) * 1994-02-28 2001-03-07 三洋電機株式会社 refrigerator
JPH07260339A (en) * 1994-03-17 1995-10-13 Matsushita Refrig Co Ltd Refrigerator
JPH07269779A (en) * 1994-03-28 1995-10-20 Toshiba Corp Manufacture of heat insulating container and vacuum heat insulating panel
JP3811963B2 (en) * 1995-03-09 2006-08-23 株式会社日立製作所 refrigerator
JPH08296953A (en) * 1995-04-27 1996-11-12 Toshiba Corp Refrigerator
KR0162412B1 (en) * 1995-10-13 1999-02-18 구자홍 New regulation loading concentration cooling apparatus of a refrigerator
JP3337927B2 (en) * 1996-12-13 2002-10-28 株式会社東芝 refrigerator
JPH10205989A (en) * 1997-01-22 1998-08-04 Sanyo Electric Co Ltd Refrigerator
JPH10253244A (en) * 1997-03-11 1998-09-25 Sanyo Electric Co Ltd Refrigerator
JPH1194444A (en) * 1997-09-19 1999-04-09 Hitachi Ltd Refrigerator
JP3125017B2 (en) * 1997-10-24 2001-01-15 工業技術院長 Insulation
JP3471205B2 (en) * 1997-11-07 2003-12-02 株式会社東芝 Storage
JPH11237155A (en) * 1998-02-24 1999-08-31 Matsushita Refrig Co Ltd Driving device for blower of refrigerator
JP4275612B2 (en) * 1998-04-15 2009-06-10 三菱電機株式会社 refrigerator
JP2000039255A (en) * 1998-07-27 2000-02-08 Hitachi Ltd Refrigerator
ATE374686T1 (en) * 1999-04-12 2007-10-15 Isuzu Motors Ltd HEAT-INSULATING MASONRY ELEMENT AND METHOD FOR THE PRODUCTION THEREOF
JP2001183043A (en) * 1999-12-22 2001-07-06 Sanyo Electric Software Co Ltd Refrigerator system
JP3603943B2 (en) * 2000-03-01 2004-12-22 シャープ株式会社 refrigerator
DE60039195D1 (en) * 2000-04-21 2008-07-24 Matsushita Refrigeration HEAT INSULATION CONTAINER AND MATERIAL USED FOR THIS
JP3478810B2 (en) * 2001-01-15 2003-12-15 松下冷機株式会社 Insulated box, raw material manufacturing method, and refrigerator
JP2002228328A (en) * 2001-02-06 2002-08-14 Fujitsu General Ltd Electric refrigerator
JP2002295948A (en) * 2001-03-30 2002-10-09 Fujitsu General Ltd Electric refrigerator
DE60233941D1 (en) * 2001-06-04 2009-11-19 Panasonic Corp INSULATED CASE-BODY BODY, COOLING DEVICE WITH BOX-BODY AND METHOD FOR RECYCLING MATERIALS FOR THE INSULATED BOX-BODY BODY
JP3493009B2 (en) * 2001-06-28 2004-02-03 松下冷機株式会社 refrigerator
JP2003042652A (en) * 2001-07-26 2003-02-13 Matsushita Refrig Co Ltd Heat insulation box, and refrigerator equipped therewith
JP3488229B2 (en) * 2001-09-05 2004-01-19 松下冷機株式会社 Insulated box and refrigerator
JP3522733B2 (en) * 2002-06-20 2004-04-26 松下冷機株式会社 refrigerator
JP2003314951A (en) * 2002-04-22 2003-11-06 Matsushita Refrig Co Ltd Refrigerator
KR20030086734A (en) * 2002-05-06 2003-11-12 엘지전자 주식회사 Refrigerator using solar heat
JP3456988B1 (en) * 2002-06-05 2003-10-14 松下冷機株式会社 Vacuum heat insulating material, method of manufacturing the same, and heat insulating box using vacuum heat insulating material
KR100498386B1 (en) * 2002-12-06 2005-07-01 엘지전자 주식회사 Apparatus for supply the cool air of refrigerator
JP2005030607A (en) * 2003-07-07 2005-02-03 Hitachi Ltd Battery charger, and refrigerator provided with battery charger
JP4111096B2 (en) * 2003-08-05 2008-07-02 三菱電機株式会社 refrigerator
DE10342859A1 (en) * 2003-09-15 2005-04-21 Basf Ag Moldings for heat insulation
JP2005140345A (en) * 2003-11-04 2005-06-02 Hitachi Home & Life Solutions Inc Refrigerator
JP2005221211A (en) * 2004-02-09 2005-08-18 Toshiba Corp Refrigerator
JP2006064320A (en) * 2004-08-27 2006-03-09 Toshiba Corp Refrigerator
JP4576197B2 (en) * 2004-10-12 2010-11-04 日立アプライアンス株式会社 Vacuum insulation and refrigerator
JP2006125527A (en) * 2004-10-29 2006-05-18 Hitachi Home & Life Solutions Inc Vacuum thermal insulation panel
JP2006177654A (en) * 2004-11-26 2006-07-06 Matsushita Electric Ind Co Ltd Refrigerator
JP4188313B2 (en) * 2004-12-24 2008-11-26 株式会社東芝 refrigerator
JP2006183896A (en) * 2004-12-27 2006-07-13 Hitachi Home & Life Solutions Inc Refrigerator and vacuum heat insulating material
JP4474276B2 (en) * 2004-12-27 2010-06-02 日立アプライアンス株式会社 refrigerator
JP2006189207A (en) * 2005-01-07 2006-07-20 Hitachi Home & Life Solutions Inc Refrigerator
JP2007024348A (en) * 2005-07-13 2007-02-01 Hoshizaki Electric Co Ltd Cooling storage
JP2007071429A (en) * 2005-09-06 2007-03-22 Matsushita Electric Ind Co Ltd Refrigerator
JP2007093153A (en) * 2005-09-30 2007-04-12 Hitachi Appliances Inc Refrigerator
JP4696906B2 (en) * 2005-12-28 2011-06-08 パナソニック株式会社 refrigerator
JP4814684B2 (en) * 2006-04-20 2011-11-16 日立アプライアンス株式会社 Vacuum heat insulating material, refrigerator and vehicle using the same
JP2007314951A (en) * 2006-05-23 2007-12-06 Chudenko Corp Water-supply emergency shutoff valve system capable of coping with earthquake
JP2009052857A (en) * 2007-08-29 2009-03-12 Hitachi Appliances Inc Cooling device
JP2009092340A (en) * 2007-10-11 2009-04-30 Sharp Corp Refrigerator
JP2009162402A (en) * 2007-12-28 2009-07-23 Sharp Corp Refrigerator
JP2009228948A (en) * 2008-03-21 2009-10-08 Panasonic Corp Refrigerator
JP2010038528A (en) * 2008-07-10 2010-02-18 Toshiba Corp Refrigerator
WO2010029728A1 (en) * 2008-09-12 2010-03-18 パナソニック株式会社 Refrigerator
MY152066A (en) * 2008-09-30 2014-08-15 Chevron Usa Inc A 110 neutral base oil with improved properties
JP2010145001A (en) * 2008-12-18 2010-07-01 Sharp Corp Heat insulating case body for refrigerator
ES2761400T3 (en) * 2009-03-27 2020-05-19 Mitsubishi Electric Corp Air conditioner comprising an electrostatic atomizing apparatus
CN201555413U (en) * 2009-04-28 2010-08-18 上海中日家用电器有限公司 Heat insulation layer for refrigerator
KR101602223B1 (en) * 2009-05-22 2016-03-10 엘지전자 주식회사 Eternity panel and refrigerator having the same
JP2010276310A (en) * 2009-05-29 2010-12-09 Hitachi Appliances Inc Refrigerator having vacuum heat insulating material
JP2011033296A (en) * 2009-08-04 2011-02-17 Mitsubishi Electric Corp Refrigerator
JP5303397B2 (en) * 2009-08-12 2013-10-02 日立アプライアンス株式会社 refrigerator
JP5537098B2 (en) * 2009-09-07 2014-07-02 株式会社東芝 refrigerator
JP5303415B2 (en) * 2009-09-28 2013-10-02 日立アプライアンス株式会社 refrigerator
JP2011102663A (en) * 2009-11-10 2011-05-26 Toshiba Corp Refrigerator
JP5957169B2 (en) * 2010-01-28 2016-07-27 株式会社東芝 refrigerator
JP5246193B2 (en) * 2010-03-25 2013-07-24 パナソニック株式会社 refrigerator
TW201200828A (en) * 2010-03-25 2012-01-01 Panasonic Corp Refrigerator
JP5589699B2 (en) * 2010-09-13 2014-09-17 パナソニック株式会社 refrigerator
JP5422487B2 (en) * 2010-05-28 2014-02-19 株式会社東芝 Refrigerator insulation box
JP5503478B2 (en) * 2010-09-14 2014-05-28 日立アプライアンス株式会社 refrigerator
JP5743483B2 (en) * 2010-10-20 2015-07-01 株式会社東芝 Insulation cabinet
JP5899395B2 (en) * 2011-09-05 2016-04-06 パナソニックＩｐマネジメント株式会社 Heat insulation box
JP2011099566A (en) * 2011-02-25 2011-05-19 Hitachi Appliances Inc Vacuum heat insulating panel and refrigerator
JP5686651B2 (en) * 2011-03-30 2015-03-18 日立アプライアンス株式会社 refrigerator
DE102011075388A1 (en) * 2011-05-06 2012-11-08 BSH Bosch und Siemens Hausgeräte GmbH Refrigerating appliance, in particular household refrigerating appliance
JP6005342B2 (en) * 2011-06-13 2016-10-12 東芝ライフスタイル株式会社 refrigerator
JP5788232B2 (en) * 2011-06-13 2015-09-30 株式会社東芝 refrigerator
JP5755040B2 (en) * 2011-06-14 2015-07-29 株式会社東芝 refrigerator
JP2013068353A (en) * 2011-09-22 2013-04-18 Panasonic Corp Refrigerator
JP6125163B2 (en) * 2012-06-27 2017-05-10 東芝ライフスタイル株式会社 refrigerator
JP6023941B2 (en) * 2012-06-27 2016-11-09 東芝ライフスタイル株式会社 Heat insulation box
JP5856091B2 (en) * 2013-01-30 2016-02-09 三菱電機株式会社 Heat insulation wall, refrigerator, equipment

Also Published As

Publication number Publication date
AU2017204798B2 (en) 2018-11-29
CN106016931B (en) 2019-04-19
JP2018063110A (en) 2018-04-19
SG10201801359YA (en) 2018-03-28
CN105393073B (en) 2019-03-08
HK1217530A1 (en) 2017-01-13
RU2629967C2 (en) 2017-09-05
CN106016931A (en) 2016-10-12
CN106196860A (en) 2016-12-07
AU2016216583B2 (en) 2017-05-04
JP2018169159A (en) 2018-11-01
TWI599752B (en) 2017-09-21
JP6062025B2 (en) 2017-01-18
TWI638125B (en) 2018-10-11
AU2016216581A1 (en) 2016-09-01
CN109855371A (en) 2019-06-07
JPWO2014196609A1 (en) 2017-02-23
AU2016216583C1 (en) 2017-09-07
SG11201509101TA (en) 2015-12-30
JP6195644B2 (en) 2017-09-13
JP6140279B2 (en) 2017-05-31
AU2017204798A1 (en) 2017-07-27
CN106895649A (en) 2017-06-27
JP2016197005A (en) 2016-11-24
WO2014196609A1 (en) 2014-12-11
JP6854789B2 (en) 2021-04-07
RU2015156309A (en) 2017-07-17
TW201520497A (en) 2015-06-01
CN109855371B (en) 2021-01-29
JP2017150811A (en) 2017-08-31
AU2016216581B2 (en) 2017-04-20
CN105393073A (en) 2016-03-09
JP2016188760A (en) 2016-11-04
TW201704705A (en) 2017-02-01
JP2016053472A (en) 2016-04-14
JP6408685B2 (en) 2018-10-17
SG10201801356QA (en) 2018-03-28
AU2016216583A1 (en) 2016-09-01
SG10201801354XA (en) 2018-04-27
MY183066A (en) 2021-02-10
SG10201801355WA (en) 2018-03-28
AU2014275821A1 (en) 2015-12-03
AU2014275821B2 (en) 2016-05-26

Similar Documents

Publication Publication Date Title
JP6408685B2 (en) refrigerator
JP6129379B2 (en) refrigerator
JP6294317B2 (en) refrigerator

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160812

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20160812

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20161118

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20161129

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170127

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170425

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170622

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170718

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170815

R150 Certificate of patent or registration of utility model

Ref document number: 6195653

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250