JP2007131318A - Heat insulation box - Google Patents

Heat insulation box Download PDF

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JP2007131318A
JP2007131318A JP2005325698A JP2005325698A JP2007131318A JP 2007131318 A JP2007131318 A JP 2007131318A JP 2005325698 A JP2005325698 A JP 2005325698A JP 2005325698 A JP2005325698 A JP 2005325698A JP 2007131318 A JP2007131318 A JP 2007131318A
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heat insulating
plate
insulating material
vacuum heat
heat insulation
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JP4852986B2 (en
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Masato Sasaki
正人 佐々木
Makoto Kuriyama
誠 栗山
Yasuaki Tanimoto
康明 谷本
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulation box for performing the heat insulation by using a vacuum heat insulating material in which the heat insulation property is hardly degraded. <P>SOLUTION: A plate-like part 19 constituting the heat insulation box has double metal plates 20 consisting of an inner side plate 22 and an outer side plate 23, and a vacuum heat insulating material 25 and a resin foam part 26 arranged in a heat insulation layer arrangement space 27 formed between the double metal plates 20. Both sides of a face side 25a are coated with an adhesive and a back side 25b of the vacuum heat insulating material 25. One side adheres to the metal plate 20, and the other side to the resin foam part 26. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、内側面と外側面が金属板で構成され、内側面と外側面の金属板の間に断熱材を有する断熱箱体に関するものである。   The present invention relates to a heat insulating box having an inner surface and an outer surface made of a metal plate, and having a heat insulating material between the inner surface and the outer surface of the metal plate.

貨物を船舶や貨物列車などを用いて輸送する場合、コンテナに貨物を積み込んで行われている。そして、輸送の際に貨物の冷蔵や冷凍しなければならないものの場合には、低温輸送用の保冷コンテナ(断熱箱体)が用いられる。   When freight is transported using ships, freight trains, etc., cargo is loaded into containers. And in the case of what must be refrigerated or frozen in the case of transportation, the cold storage container (insulation box) for low-temperature transportation is used.

保冷コンテナは、貨物を積み込む内部空間がほぼ密閉状とすることができるものであり、また、内部空間の温度を低温に保つために、冷凍機などの低温環境を維持する手段が設けられている。そして、保冷コンテナの壁や天井などには断熱層が設けられ、内部空間と外部との間に温度差がある場合にも、熱の出入りを小さくすることができるような構造となっている。   In the cold storage container, the internal space in which the cargo is loaded can be almost sealed, and a means for maintaining a low temperature environment such as a refrigerator is provided in order to keep the temperature of the internal space at a low temperature. . And the heat insulation layer is provided in the wall, ceiling, etc. of a cold storage container, and it has a structure which can make heat | fever in / out small also when there exists a temperature difference between internal space and the exterior.

保冷コンテナは、通常、直方体の箱状であり、壁や天井などの各面に板状部が設けられている。この板状部の構造は2重の金属板を有しており、2重の金属板同士の間に断熱材を配置している構造となっており、内部空間と外部との間で熱の出入りを小さくするようにしている。この断熱材は発泡性の樹脂などを充填して形成される(例えば、特許文献1参照)。
特開2003−72881号公報
The cold container is usually a rectangular parallelepiped box, and a plate-like portion is provided on each surface such as a wall or a ceiling. The structure of this plate-shaped part has a double metal plate, and has a structure in which a heat insulating material is arranged between the double metal plates, and heat is transferred between the internal space and the outside. I try to make the entrance and exit small. This heat insulating material is formed by filling a foamable resin or the like (see, for example, Patent Document 1).
JP 2003-72881 A

保冷コンテナなどの断熱箱体は、輸送や保管の際に、断熱箱体同士を積み重ねる場合がある。そのため、所定の荷重が上側から作用しても壊れることがないようにする必要がある。また、輸送中の振動などにより、より大きな荷重が作用することがある。さらに、保冷コンテナなどの断熱箱体を船や貨物列車などに積み込んだり船や貨物列車などから降ろしたりする際に、衝撃力によって断熱箱体が破損するおそれがあるので、この衝撃力によって破損しない強度を有する必要がある。   Insulated boxes such as cold containers may be stacked together during transportation and storage. Therefore, it is necessary not to break even if a predetermined load acts from above. In addition, a larger load may be applied due to vibration during transportation. In addition, when a heat insulation box such as a cold container is loaded onto a ship or freight train, or when it is unloaded from a ship or freight train, the heat insulation box may be damaged by an impact force. Must have strength.

そのため、保冷コンテナなどの断熱箱体において、壁や天井に設けられる2重の金属板は、折り曲げたり湾曲させたりして変形部を形成して、金属板が変形しにくい形状となっている。   Therefore, in a heat insulating box such as a cold storage container, the double metal plate provided on the wall or ceiling is bent or curved to form a deformed portion so that the metal plate is not easily deformed.

一方で、圧縮されても空隙を維持することのできる芯材と、この芯材を包む袋材を有し、袋材内を真空にして製作される真空断熱材は、特に断熱性に優れるものである。そして、このような真空断熱材を2重の金属板の間に配置することができれば、保冷コンテナなどの断熱箱体の断熱性をより向上させることができる。   On the other hand, a vacuum heat insulating material that has a core material that can maintain a void even when compressed and a bag material that wraps the core material, and is produced by vacuuming the inside of the bag material, is particularly excellent in heat insulating properties. It is. And if such a vacuum heat insulating material can be arrange | positioned between double metal plates, the heat insulation of heat insulation boxes, such as a cold storage container, can be improved more.

真空断熱材は板状の部材であり、保冷コンテナなどの断熱箱体に真空断熱材を使用する場合には、2重の金属板の間に配置して製作することが考えられる。しかし、上記したように、断熱箱体の使用時には大きな力がかかるため、金属板がねじれたり撓んだりすることがあり、このような場合、真空断熱材と金属板との間や、真空断熱材と後から充填される発泡樹脂との間がずれてしまうおそれがあり、このような場合には断熱性が低下するおそれがある。   The vacuum heat insulating material is a plate-like member. When the vacuum heat insulating material is used for a heat insulating box such as a cold insulation container, it can be considered that the vacuum heat insulating material is disposed between two metal plates. However, as described above, since a large force is applied when using the heat insulating box, the metal plate may be twisted or bent. In such a case, between the vacuum heat insulating material and the metal plate, or vacuum insulation. There is a possibility that the gap between the material and the foamed resin to be filled later is shifted, and in such a case, the heat insulating property may be lowered.

本発明は、上記従来の課題を解決するもので、真空断熱材を用いて断熱を行うものであり、断熱性が低下しにくくした断熱箱体を提供することを目的とする。   The present invention solves the above-described conventional problems, and performs heat insulation using a vacuum heat insulating material, and an object of the present invention is to provide a heat insulating box body in which the heat insulating property is hardly lowered.

上記目的を達成するために、本発明の断熱箱体は、真空断熱材の両面には接着剤が塗布されて、真空断熱材の一方の面は金属板と接着され、他方の面は発泡樹脂部と接着したものである。   In order to achieve the above object, the heat insulating box of the present invention is such that an adhesive is applied to both surfaces of a vacuum heat insulating material, one surface of the vacuum heat insulating material is bonded to a metal plate, and the other surface is a foamed resin. It is bonded to the part.

これによって、断熱箱体の使用時に真空断熱材がずれにくくなり、断熱性の低下が発生しにくい。   This makes it difficult for the vacuum heat insulating material to shift when the heat insulating box is used, and the heat insulating property does not easily deteriorate.

本発明の断熱箱体によれば、真空断熱材を用いて断熱を行うことができ、また、断熱性の低下が発生しにくい。   According to the heat insulation box of the present invention, heat insulation can be performed using a vacuum heat insulating material, and a decrease in heat insulation is unlikely to occur.

請求項1に記載の断熱箱体の発明は、板状部と、前記板状部によって囲まれる内部空間とを備え、前記板状部は、内側板と外側板からなる2重の金属板と、前記金属板の間に配置される発泡樹脂部及び真空断熱材とを有し、前記内側板の内側に前記内部空間が形成されるものであり、前記真空断熱材の両面には接着剤が塗布されて、前記真空断熱材の一方の面は前記金属板と接着され、他方の面は前記発泡樹脂部と接着されていることを特徴とするものであり、断熱箱体の使用時に真空断熱材がずれにくくなり、断熱性の低下が発生しにくい。また、真空断熱材のずれにより生じる空間部に水分が侵入し、ウレタンなどの発泡樹脂部の劣化を起こす可能性が少なくなる。   The invention of the heat insulation box according to claim 1 includes a plate-like portion and an internal space surrounded by the plate-like portion, and the plate-like portion includes a double metal plate including an inner plate and an outer plate. And a foamed resin portion and a vacuum heat insulating material disposed between the metal plates, and the inner space is formed inside the inner plate, and an adhesive is applied to both surfaces of the vacuum heat insulating material. One surface of the vacuum heat insulating material is bonded to the metal plate, and the other surface is bonded to the foamed resin portion, and the vacuum heat insulating material is used when the heat insulating box is used. It becomes difficult to shift and the heat insulating property is hardly lowered. In addition, there is less possibility of moisture entering the space generated by the displacement of the vacuum heat insulating material and causing deterioration of the foamed resin portion such as urethane.

請求項2に記載の断熱箱体の発明は、請求項1に記載の発明における真空断熱材が、内側板と接着されているものであり、断熱箱体の使用時の真空断熱材の劣化が発生しにくい。   In the invention of the heat insulation box according to claim 2, the vacuum heat insulating material in the invention according to claim 1 is bonded to the inner plate, and deterioration of the vacuum heat insulating material at the time of use of the heat insulating box is caused. Hard to occur.

請求項3に記載の断熱箱体の発明は、請求項1または2に記載の発明における金属板には、折り曲げまたは湾曲によって形成された変形部と、平面部とが設けられ、真空断熱材は平面部に配置されて接着されているものであり、断熱箱体が高強度となり、真空断熱材の配置が行いやすい。   According to a third aspect of the present invention, the metal plate according to the first or second aspect is provided with a deformed portion formed by bending or bending, and a flat portion, and the vacuum heat insulating material is It is arranged and bonded to the flat part, the heat insulating box becomes high strength, and the vacuum heat insulating material can be easily arranged.

請求項4に記載の断熱箱体の発明は、請求項1から3のいずれか一項に記載の発明に加えて、内部空間には温度調節装置が配置され、前記内部空間内を所定の温度に制御することができるものであり、貨物の温度を安定させることができる。   According to a fourth aspect of the present invention, in addition to the first aspect of the present invention, a temperature control device is disposed in the internal space, and the interior space has a predetermined temperature. The temperature of the cargo can be stabilized.

なお、本発明は、内側板と外側板に金属板を用いているが、金属板でなくても、樹脂板でも、同様の効果が得られる。   In the present invention, metal plates are used for the inner plate and the outer plate, but the same effect can be obtained by using a resin plate instead of a metal plate.

また、本発明は、内側板と外側板との間に発泡樹脂部及び真空断熱材を有する板状部によって内部空間が形成される断熱箱体であるが、内箱と外箱との間に発泡樹脂部及び真空断熱材を有する断熱箱体であっても構わない。   Further, the present invention is a heat insulating box body in which an internal space is formed by a plate-like portion having a foamed resin portion and a vacuum heat insulating material between an inner plate and an outer plate, but between the inner box and the outer box. It may be a heat insulating box having a foamed resin portion and a vacuum heat insulating material.

以下、本発明の断熱箱体の実施の形態について、図面を参照しながら説明するが、先に説明した実施の形態と同一構成については同一符号を付して、その詳細な説明は省略する。なお、この実施の形態によってこの発明が限定されるものでない。   Hereinafter, embodiments of the heat insulation box according to the present invention will be described with reference to the drawings. However, the same reference numerals are given to the same configurations as those of the above-described embodiments, and detailed description thereof will be omitted. The present invention is not limited to the embodiments.

図1は、本発明の実施の形態1における断熱箱体の斜視図である。図2は、図1に示す断熱箱体のA−A断面図である。図3は、図2に示す断熱箱体のB部の拡大断面図である。図4は、(a)は本発明の実施の形態1の断熱箱体に用いる真空断熱体を示す斜視図、(b)は(a)のC−C矢視断面斜視図、(c)は(a)の真空断熱体のひれ部を折曲した状態を示す斜視図である。図5は、同実施の形態の断熱箱体の板状部(側板部)の内側板に真空断熱材を貼り付けた状態を示す拡大断面図である。図6は、同実施の形態の断熱箱体の板状部(側板部)の内側板の拡大断面図である。   FIG. 1 is a perspective view of a heat insulation box according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the heat insulation box shown in FIG. FIG. 3 is an enlarged cross-sectional view of part B of the heat insulating box shown in FIG. 4A is a perspective view showing a vacuum heat insulating body used in the heat insulating box according to Embodiment 1 of the present invention, FIG. 4B is a cross-sectional perspective view taken along the line CC of FIG. 4A, and FIG. It is a perspective view which shows the state which bent the fin part of the vacuum heat insulating body of (a). FIG. 5: is an expanded sectional view which shows the state which affixed the vacuum heat insulating material on the inner side board of the plate-shaped part (side plate part) of the heat insulation box of the embodiment. FIG. 6 is an enlarged cross-sectional view of the inner plate of the plate-like portion (side plate portion) of the heat insulating box according to the embodiment.

本発明の実施の形態1における断熱箱体1は、図1に示されるように、直方体の箱状であって板状部19を有している。板状部19は6面に設けられ、全て長方形状であり、上側に配置される天板部10、下側に配置される底板部11と、4枚の側板部12とが設けられている。そして、板状部19によって囲まれる空間である内部空間13が内部に形成されている。また、板状部19は枠材30に固定されている。   The heat insulation box 1 in Embodiment 1 of this invention is a rectangular parallelepiped box shape, and has the plate-shaped part 19 as FIG. 1 shows. The plate-like portions 19 are provided on six surfaces and are all rectangular, and are provided with a top plate portion 10 disposed on the upper side, a bottom plate portion 11 disposed on the lower side, and four side plate portions 12. . An internal space 13 that is a space surrounded by the plate-like portion 19 is formed inside. The plate-like portion 19 is fixed to the frame member 30.

天板部10及び底板部11の形状はほぼ同じであり、対向する1組の辺である長辺15が、他の二辺である短辺16よりも長く、細長い長方形状となっている。また、短辺16側に配置される側板部12は、開閉可能な扉部17となっており、必要に応じて開閉することができる。内部空間13に貨物を積み込んだり取り出したりする場合には扉部17を開け、輸送する場合には、扉部17は閉じられる。そして、扉部17を閉じた状態では、内部空間13がほぼ密閉状となる。   The shapes of the top plate portion 10 and the bottom plate portion 11 are substantially the same, and the long side 15 that is a pair of opposing sides is longer than the short side 16 that is the other two sides, and has an elongated rectangular shape. Moreover, the side-plate part 12 arrange | positioned at the short side 16 side becomes the door part 17 which can be opened and closed, and can be opened and closed as needed. When loading / unloading cargo into / from the internal space 13, the door portion 17 is opened, and when transporting, the door portion 17 is closed. And in the state which closed the door part 17, the internal space 13 becomes substantially sealed shape.

また、図1、図2に示されるように、断熱箱体1の内部空間13には、温度調節装置18が設けられている。温度調節装置18は、内部空間13内の温度を所定の温度に維持することができるものであり、具体的には冷凍機である。そして、断熱箱体1を用いて輸送する場合には、必要に応じて温度調節装置18を稼働させ、内部空間13の温度を所定の温度で維持させることができる。   As shown in FIGS. 1 and 2, a temperature adjusting device 18 is provided in the internal space 13 of the heat insulating box 1. The temperature control device 18 can maintain the temperature in the internal space 13 at a predetermined temperature, and is specifically a refrigerator. And when transporting using the heat insulation box 1, the temperature control apparatus 18 can be operated as needed and the temperature of the internal space 13 can be maintained at predetermined | prescribed temperature.

側板部12の構造は、図3に示されるように、内側板22及び外側板23により構成される2重の金属板20と、真空断熱材25及び発泡樹脂部26により構成される断熱層21とからなっている。そして、断熱層21は、内側板22及び外側板23の間に形成される断熱層配置空間27に配置されている。   As shown in FIG. 3, the structure of the side plate portion 12 includes a double metal plate 20 constituted by an inner plate 22 and an outer plate 23, and a heat insulating layer 21 constituted by a vacuum heat insulating material 25 and a foamed resin portion 26. It is made up of. The heat insulating layer 21 is arranged in a heat insulating layer arrangement space 27 formed between the inner plate 22 and the outer plate 23.

内側板22及び外側板23は、平板の鋼板が用いられている。この鋼板の材質は、アルミやステンレスなどの耐腐食性に優れる材質のものを用いることができる。   The inner plate 22 and the outer plate 23 are flat steel plates. As the material of the steel plate, a material having excellent corrosion resistance such as aluminum or stainless steel can be used.

また、内側板22及び外側板23には、図1、図3に示すように、上下方向に延びる直線状の変形部28が形成されている。変形部28は、折り曲げて形成される部分であり、断熱層配置空間27側が突出するように形成され、外部が凹んだ形状となっている。そして、変形部28以外の部分は平面状である平面部29となり、後述するように、真空断熱材25は平面部29に接着されている。変形部28の形成はプレスなどにより行うことができる。内側板22及び外側板23の変形部28は、それぞれ複数形成されており、横方向に並んでいる。   Further, as shown in FIGS. 1 and 3, the inner plate 22 and the outer plate 23 are formed with linear deformation portions 28 extending in the vertical direction. The deformation part 28 is a part formed by bending, is formed so that the heat insulation layer arrangement space 27 side protrudes, and has a shape in which the outside is recessed. And the part other than the deformation | transformation part 28 becomes the plane part 29 which is planar shape, and the vacuum heat insulating material 25 is adhere | attached on the plane part 29 so that it may mention later. The deformation portion 28 can be formed by pressing or the like. A plurality of deformed portions 28 of the inner plate 22 and the outer plate 23 are formed, respectively, and are arranged in the horizontal direction.

なお、変形部28は折り曲げる方法以外にも、湾曲によって形成することもできる。   In addition, the deformation | transformation part 28 can also be formed by a curve other than the method of bending.

変形部28は所定の間隔を設けるようにして、複数形成され、全体に配置されている。したがって、内側板22及び外側板23に、変形部28に沿う方向(上下方向)に圧縮力が作用した場合や、変形部28が湾曲する方向に曲げ応力が加わった場合に、より高強度となる。   A plurality of the deforming portions 28 are formed so as to have a predetermined interval, and are arranged throughout. Therefore, when a compressive force is applied to the inner plate 22 and the outer plate 23 in the direction (vertical direction) along the deformed portion 28, or when a bending stress is applied in the direction in which the deformed portion 28 is curved, higher strength is obtained. Become.

内側板22の変形部28と、外側板23の変形部28は、上下方向に延びるように形成されており、これらの方向は平行な関係となっている。   The deformation portion 28 of the inner plate 22 and the deformation portion 28 of the outer plate 23 are formed so as to extend in the vertical direction, and these directions are in a parallel relationship.

真空断熱材25は、図4(a),(b)の様に、繊維材を圧縮成形した芯材43をガスバリア性を有する外被材41,42で覆い、当該外被材41,42で覆われた内部を減圧したものである。   As shown in FIGS. 4A and 4B, the vacuum heat insulating material 25 covers a core material 43 formed by compression molding a fiber material with outer covering materials 41 and 42 having gas barrier properties. The covered interior is decompressed.

外被材41,42は、ガスバリア層、熱溶着層及び保護層を有する長方形状のシートである。そして、ガスバリア層はアルミニウムなどの金属箔や、金属または無酸化物の蒸着されたフィルムである。熱溶着層は、当該ガスバリア層の内面側に、無延伸ポリプロピレン等のフィルムを熱溶着層として積層したものである。そして、保護層は、ガスバリア層の外面側に、ナイロンやポリエチレンテレフタレートなどのフィルムを積層したラミネートフィルムである。   The jacket materials 41 and 42 are rectangular sheets having a gas barrier layer, a heat-welded layer, and a protective layer. The gas barrier layer is a metal foil such as aluminum or a metal or non-oxide deposited film. The heat-welded layer is formed by laminating a film such as unstretched polypropylene as a heat-welded layer on the inner surface side of the gas barrier layer. The protective layer is a laminate film in which a film such as nylon or polyethylene terephthalate is laminated on the outer surface side of the gas barrier layer.

芯材43は、圧縮されても空隙を維持することのできるものであり、繊維材などを用いて形成される。芯材43を繊維材を用いて形成する場合には、グラスウールやグラスファイバーなどの無機繊維が好ましい。また、芯材43には、繊維材以外の材料を用いても良い。   The core material 43 can maintain a void even when compressed, and is formed using a fiber material or the like. When the core material 43 is formed using a fiber material, inorganic fibers such as glass wool and glass fiber are preferable. Further, a material other than the fiber material may be used for the core material 43.

そして、真空断熱材25は、外被材41,42を重ね合わせて三辺(三方)を加熱溶着して一辺を開口状として袋状とし、芯材43を袋内に挿入し、さらに、開口部分から袋内を減圧した状態で開口部分を加熱溶着して封止される。   And the vacuum heat insulating material 25 overlaps the jacket materials 41 and 42, heat-welds three sides (three sides), makes one side into an opening shape, inserts the core material 43 in a bag, further opens The opening portion is heated and welded in a state where the inside of the bag is decompressed from the portion and sealed.

このようにして、製作された真空断熱材25には、図4(a)に示すように、外被材41,42の各辺に重ね合わせて加熱溶着される部分である、4ヵ所のひれ部25c,25d,25e,25fが形成される。そして、図4(c)に示すように、このひれ部25c,25d,25e,25fが折り返される。なお、このひれ部25c,25d,25e,25fの折り返しを行わないものを用いることもできる。   As shown in FIG. 4A, the manufactured vacuum heat insulating material 25 has four fins that are portions that are heated and welded on the sides of the jacket materials 41 and 42 as shown in FIG. Portions 25c, 25d, 25e, and 25f are formed. And as shown in FIG.4 (c), this fin part 25c, 25d, 25e, 25f is return | folded. In addition, what does not fold back this fin part 25c, 25d, 25e, 25f can also be used.

発泡樹脂部26は、流動状の樹脂を充填しながら発泡硬化させることができるものを用いて成形するものであり、充填することのできる空間に合わせた形状とすることができる。発泡樹脂部26に用いられる材料としては、ウレタン樹脂材料が用いられるが他の材料でもよい。   The foamed resin portion 26 is formed using a material that can be foamed and cured while filling a fluid resin, and can be shaped to fit the space that can be filled. As a material used for the foamed resin portion 26, a urethane resin material is used, but other materials may be used.

図5、図6には、側板部12の断面図であり、これらの図を用いて断熱箱体1の側板部12を形成の方法を説明する。   5 and 6 are cross-sectional views of the side plate portion 12, and a method for forming the side plate portion 12 of the heat insulating box 1 will be described with reference to these drawings.

まず、真空断熱材25の表面25a、裏面25bの両面に接着剤を塗布して接着層50a,50bを形成する。この接着剤の種類は限定されるものでないが、発泡樹脂部26にウレタン樹脂材料を用いた場合は、真空断熱材25の表面25aと発泡樹脂部26との接着面の接着層50aにウレタン系接着剤を用いと、真空断熱材25の表面25aと発泡樹脂部26との接着性が良い。   First, an adhesive is applied to both the front surface 25a and the back surface 25b of the vacuum heat insulating material 25 to form the adhesive layers 50a and 50b. The type of this adhesive is not limited, but when a urethane resin material is used for the foamed resin portion 26, a urethane-based adhesive layer 50a on the adhesive surface between the surface 25a of the vacuum heat insulating material 25 and the foamed resin portion 26 is used. When an adhesive is used, the adhesion between the surface 25a of the vacuum heat insulating material 25 and the foamed resin portion 26 is good.

そして、表面25a、裏面25bの両面に接着剤を塗布された真空断熱材25を、内側板22の断熱層配置空間27側に貼り付ける。また、真空断熱材25が貼り付けられる位置は、変形部28を避けるようにして平面部29に配置される。このとき、裏面25bが内側板22と接着される。   And the vacuum heat insulating material 25 by which the adhesive agent was apply | coated to both surfaces of the surface 25a and the back surface 25b is affixed on the heat insulation layer arrangement | positioning space 27 side of the inner side board 22. FIG. Further, the position where the vacuum heat insulating material 25 is affixed is disposed on the flat portion 29 so as to avoid the deformable portion 28. At this time, the back surface 25 b is bonded to the inner plate 22.

本実施の形態の真空断熱材25は、内側板22に貼り付けられているが、外側板23の断熱層配置空間27側に貼り付けることもでき、さらに、内側板22側、外側板23側の両方に取り付けることもできる。なお、断熱箱体1の使用の際には、通常、外部は高温になりやすく、内部は冷却されるので、内側板22に真空断熱材25を貼り付けた方が真空断熱材25の劣化などが発生しにくい。   Although the vacuum heat insulating material 25 of this Embodiment is affixed on the inner side board 22, it can also be affixed on the heat insulation layer arrangement | positioning space 27 side of the outer side board 23, and also the inner side board 22 side and the outer side board 23 side. Can be attached to both. When the heat insulating box 1 is used, the outside tends to become high temperature and the inside is cooled. Therefore, the vacuum heat insulating material 25 is deteriorated when the vacuum heat insulating material 25 is attached to the inner plate 22. Is unlikely to occur.

なお、内側板22及び外側板23の内側の面(断熱層配置空間27側の面)に、あらかじめ接着剤を塗布しておき、発泡樹脂部26と、内側板22及び外側板23との間の強度を高強度とすることができる。   It should be noted that an adhesive is applied in advance to the inner surface of the inner plate 22 and the outer plate 23 (the surface on the heat insulation layer arrangement space 27 side), so that the space between the foamed resin portion 26 and the inner plate 22 and the outer plate 23 is reduced. The strength of can be made high.

真空断熱材25を取り付けた後、内側板22と外側板23は所定の間隔となるような状態で固定され、図5に示される状態とする。この固定は、枠材30に溶接するなどして行われる。そして、内側板22と外側板23との間に形成される断熱層配置空間27に、流動状の樹脂を充填しながら発泡硬化させて発泡樹脂部26が形成される(図6)。断熱層配置空間27に流動状の樹脂を充填する場合には、内側板22や外側板23などに設けられる注入孔(図示せず)から注入される。そして、注入された樹脂が発泡しながら硬化して、断熱層配置空間27に合わせるような形状となり、断熱層配置空間27には隙間が形成されない状態となる。   After attaching the vacuum heat insulating material 25, the inner side plate 22 and the outer side plate 23 are fixed at a predetermined interval, and are in the state shown in FIG. This fixing is performed by welding to the frame member 30 or the like. The foamed resin portion 26 is formed by foaming and curing the heat-insulating layer arrangement space 27 formed between the inner plate 22 and the outer plate 23 while filling the fluid resin (FIG. 6). When the fluidized resin is filled in the heat insulating layer arrangement space 27, the resin is injected from an injection hole (not shown) provided in the inner plate 22, the outer plate 23, or the like. Then, the injected resin is cured while foaming and is shaped to fit the heat insulation layer arrangement space 27, so that no gap is formed in the heat insulation layer arrangement space 27.

また、真空断熱材25の表面25a、裏面25bの両面には接着剤が塗布されており、接着層50a,50bが形成されて、真空断熱材25は、内側板22や発泡樹脂部26との間において接着強度が高くなる。   Adhesive is applied to both the front surface 25 a and the back surface 25 b of the vacuum heat insulating material 25, and adhesive layers 50 a and 50 b are formed. The vacuum heat insulating material 25 is connected to the inner plate 22 and the foamed resin portion 26. The adhesive strength increases between the two.

本実施の形態の断熱箱体1の、天板部10、底板部11及び他の側板部12の構造ついても、上記した側板部12と同様の構造が採用されており、同様な方法で製作され、これらの板状部19を用いて箱状とし、内部空間13が形成される。なお、天板部10や底板部11の変形部28は、短辺16に平行となる方向に延びるように形成されている。   The structure of the top plate part 10, the bottom plate part 11 and the other side plate part 12 of the heat insulation box 1 of the present embodiment is also the same as that of the side plate part 12 described above, and is manufactured by the same method. Then, the plate-like portion 19 is used to form a box shape, and the internal space 13 is formed. In addition, the deformation | transformation part 28 of the top-plate part 10 or the baseplate part 11 is formed so that it may extend in the direction parallel to the short side 16. FIG.

さらに、温度調節装置18を、扉部17が設けられる側板部12とは反対側付近の内部空間13に配置して、断熱箱体1が完成する。   Furthermore, the heat regulation box 1 is completed by disposing the temperature control device 18 in the internal space 13 near the side opposite to the side plate portion 12 where the door portion 17 is provided.

本実施の形態の断熱箱体1では、真空断熱材25が、内側板22と外側板23との間に形成される断熱層配置空間27に配置されているので、断熱性を向上させることができる。また、真空断熱材25の表面25a、裏面25bの両面には接着剤が塗布されているので、真空断熱材25は、金属板20(内側板22)及び発泡樹脂部26のいずれとの間においても接着強度が高くなり、断熱箱体1の使用の際に、真空断熱材25がずれにくくなり、断熱性の低下を防止することができる。   In the heat insulation box 1 of this Embodiment, since the vacuum heat insulating material 25 is arrange | positioned in the heat insulation layer arrangement | positioning space 27 formed between the inner side board 22 and the outer side board 23, it can improve heat insulation. it can. Moreover, since the adhesive agent is apply | coated to both surfaces of the surface 25a and the back surface 25b of the vacuum heat insulating material 25, the vacuum heat insulating material 25 is between any of the metal plate 20 (inner side plate 22) and the foamed resin part 26. In addition, the adhesive strength is increased, and when the heat insulating box 1 is used, the vacuum heat insulating material 25 is not easily displaced, and the heat insulating property can be prevented from being lowered.

なお、上記した実施の形態の断熱箱体1では、天板部10、底板部11及び4枚の側板部12の板状部19の全てが、真空断熱材25の両面に接着剤が塗布されて、真空断熱材25の裏面25bが金属板20と接着され、表面25aが発泡樹脂部26と接着したものであるが、この構造を採用する板状部19を一部としてもよい。   In the heat insulating box 1 of the above-described embodiment, the top plate portion 10, the bottom plate portion 11, and the plate-like portions 19 of the four side plate portions 12 are all coated with adhesive on both surfaces of the vacuum heat insulating material 25. The back surface 25b of the vacuum heat insulating material 25 is bonded to the metal plate 20, and the front surface 25a is bonded to the foamed resin portion 26. However, the plate-like portion 19 adopting this structure may be a part.

以上のように、本発明にかかる断熱箱体は、真空断熱材の両面には接着剤が塗布されて、真空断熱材の一方の面は金属板と接着され、他方の面は発泡樹脂部と接着したものであるので、断熱箱体の使用時に真空断熱材がずれにくくなり、断熱性の低下が発生しにくい。したがって、船舶による貨物輸送、鉄道や道路による貨物輸送の保冷コンテナに適用できる。   As described above, in the heat insulating box according to the present invention, the adhesive is applied to both surfaces of the vacuum heat insulating material, one surface of the vacuum heat insulating material is bonded to the metal plate, and the other surface is the foamed resin portion. Since they are bonded, the vacuum heat insulating material is less likely to shift when the heat insulating box is used, and the heat insulating property is not easily lowered. Therefore, the present invention can be applied to a cold container for cargo transportation by ship and cargo transportation by rail or road.

本発明の実施の形態1における断熱箱体の斜視図The perspective view of the heat insulation box in Embodiment 1 of this invention 図1のA−A断面図AA sectional view of FIG. 図2のB部拡大断面図B section enlarged sectional view of FIG. (a)は本発明の実施の形態1の断熱箱体に用いる真空断熱体を示す斜視図、(b)は(a)のC−C矢視断面斜視図、(c)は(a)の真空断熱体のひれ部を折曲した状態を示す斜視図(A) is a perspective view which shows the vacuum heat insulating body used for the heat insulation box of Embodiment 1 of this invention, (b) is CC sectional view perspective view of (a), (c) is (a). The perspective view which shows the state which bent the fin part of the vacuum heat insulating body 同実施の形態の断熱箱体の板状部(側板部)の内側板に真空断熱材を貼り付けた状態を示す拡大断面図The expanded sectional view which shows the state which affixed the vacuum heat insulating material on the inner side board of the plate-shaped part (side board part) of the heat insulation box of the embodiment 同実施の形態の断熱箱体の板状部(側板部)の拡大断面図The expanded sectional view of the plate-shaped part (side plate part) of the heat insulation box of the embodiment

符号の説明Explanation of symbols

1 断熱箱体
13 内部空間
18 温度調節装置
19 板状部
20 金属板
22 内側板
23 外側板
25 真空断熱材
26 発泡樹脂部
28 変形部
29 平面部
DESCRIPTION OF SYMBOLS 1 Heat insulation box 13 Internal space 18 Temperature control device 19 Plate part 20 Metal plate 22 Inner plate 23 Outer plate 25 Vacuum heat insulating material 26 Foamed resin part 28 Deformation part 29 Plane part

Claims (4)

板状部と、前記板状部によって囲まれる内部空間とを備え、
前記板状部は、内側板と外側板からなる2重の金属板と、前記金属板の間に配置される発泡樹脂部及び真空断熱材とを有し、前記内側板の内側に前記内部空間が形成されるものであり、前記真空断熱材の両面には接着剤が塗布されて、前記真空断熱材の一方の面は前記金属板と接着され、他方の面は前記発泡樹脂部と接着されていることを特徴とする断熱箱体。
A plate-like portion, and an internal space surrounded by the plate-like portion,
The plate-like portion includes a double metal plate composed of an inner plate and an outer plate, a foamed resin portion and a vacuum heat insulating material disposed between the metal plates, and the internal space is formed inside the inner plate. An adhesive is applied to both surfaces of the vacuum heat insulating material, one surface of the vacuum heat insulating material is bonded to the metal plate, and the other surface is bonded to the foamed resin portion. A heat insulating box characterized by that.
真空断熱材は、内側板と接着されていることを特徴とする請求項1に記載の断熱箱体。   The heat insulation box according to claim 1, wherein the vacuum heat insulating material is bonded to the inner plate. 金属板は平板を用いて形成されるものであって、折り曲げまたは湾曲によって形成された変形部と、平面部とが設けられ、真空断熱材は平面部に配置されて接着されていることを特徴とする請求項1または2に記載の断熱箱体。   The metal plate is formed using a flat plate, and is provided with a deformed portion formed by bending or bending, and a flat portion, and the vacuum heat insulating material is disposed and bonded to the flat portion. The heat insulation box according to claim 1 or 2. 内部空間には温度調節装置が配置され、前記内部空間内を所定の温度に制御することができることを特徴とする請求項1から3のいずれか一項に記載の断熱箱体。   The heat insulation box according to any one of claims 1 to 3, wherein a temperature control device is arranged in the internal space, and the inside space can be controlled to a predetermined temperature.
JP2005325698A 2005-11-10 2005-11-10 Heat insulation box Expired - Fee Related JP4852986B2 (en)

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JP2009198129A (en) * 2008-02-25 2009-09-03 Panasonic Corp Hot water storage tank and water heater using the same
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JP2011012953A (en) * 2010-08-24 2011-01-20 Imae Kogyo Kk Heat insulation apparatus for hot water storage tank for heat pump water heater

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JP2009198129A (en) * 2008-02-25 2009-09-03 Panasonic Corp Hot water storage tank and water heater using the same
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