JPH11159694A - Vacuum heat insulating panel and manufacture therefor and heat insulating box body using it - Google Patents
Vacuum heat insulating panel and manufacture therefor and heat insulating box body using itInfo
- Publication number
- JPH11159694A JPH11159694A JP9327292A JP32729297A JPH11159694A JP H11159694 A JPH11159694 A JP H11159694A JP 9327292 A JP9327292 A JP 9327292A JP 32729297 A JP32729297 A JP 32729297A JP H11159694 A JPH11159694 A JP H11159694A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- outer shell
- shell material
- heat insulating
- panel
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、冷蔵庫などの断
熱箱体の断熱材に用いる真空断熱パネルに係るものであ
り、さらに詳しくは、断熱箱体から、真空断熱パネルを
破壊せずに回収させることを目的とした真空断熱パネル
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum heat insulating panel used as a heat insulating material of a heat insulating box such as a refrigerator, and more particularly, to recovering a vacuum heat insulating panel from a heat insulating box without breaking the panel. The present invention relates to a vacuum insulation panel for the purpose.
【０００２】[0002]
【従来の技術】図８は、従来の真空断熱パネル２６を断
熱箱体である冷蔵庫に配設した断面図である。ここで、
２７は外装材である外箱であり、２９は内装材である内
箱、２６は真空断熱パネル、３０は外箱２７と内箱２９
の隙間に充填された硬質発泡ウレタンである。2. Description of the Related Art FIG. 8 is a sectional view in which a conventional vacuum heat insulating panel 26 is provided in a refrigerator as a heat insulating box. here,
27 is an outer box as an exterior material, 29 is an inner box as an interior material, 26 is a vacuum insulation panel, 30 is an outer box 27 and an inner box 29
Is hard urethane foam filled in the gaps.
【０００３】この真空断熱パネル２６は、連続気泡を有
する発泡ウレタンなどの通気性を有する芯材２３と、ガ
スバリヤ性を有する外殻材２１で構成されている。そし
て、断熱箱体は、例えば外箱２７の内面側に、ホットメ
ルトなどの接着剤２８を用いて真空断熱パネル２６を固
定配設した後、外箱２７と内箱２９との嵌合によって形
成された間隙の残った空隙に、発泡ウレタン３０などを
充填することによって形成されていた。[0003] The vacuum heat insulating panel 26 is composed of a gas-permeable core material 23 such as urethane foam having open cells and an outer shell material 21 having gas barrier properties. The heat insulating box is formed by, for example, fixing the vacuum heat insulating panel 26 to the inner surface side of the outer box 27 using an adhesive 28 such as hot melt and then fitting the outer box 27 to the inner box 29. It is formed by filling the remaining space of the formed gap with urethane foam 30 or the like.
【０００４】従来は、この様に、外殻材２１が発泡ウレ
タン１０に直接接着する構造であったことから、資源の
有効活用の観点から行う回収の際、外殻材２１が破壊さ
れやすい状態となり、使用可能な状態での真空断熱パネ
ルの回収が困難であった。[0004] Conventionally, since the outer shell 21 is directly bonded to the urethane foam 10 as described above, the outer shell 21 is easily broken at the time of recovery from the viewpoint of effective utilization of resources. Thus, it was difficult to recover the vacuum insulation panel in a usable state.
【０００５】これに対して、例えば、特開平７−７７３
８３号公報に開示されたリサイクルを目的とする、分解
可能な断熱体構造に関する発明がある。図９に示したも
のがそれであり、外箱２７、内箱２９、及び真空断熱パ
ネル２６と硬質ウレタンフォーム３０が直接接着しない
ように、外箱２７と内箱２９の内面及び真空断熱パネル
２６の表面に、離型層３１が形成されている。この方法
によれば、内箱と外箱および真空断熱パネルが、直接、
発泡ウレタンと接着しないので、冷蔵庫を解体したと
き、各部材が容易に回収できるという効果がある。On the other hand, for example, Japanese Unexamined Patent Publication No.
There is an invention related to a decomposable heat insulator structure for recycling, which is disclosed in Japanese Patent Publication No. 83. This is shown in FIG. 9. The outer box 27, the inner box 29, and the inner surfaces of the outer box 27 and the inner box 29 and the vacuum insulating panel 26 are so fixed that the rigid urethane foam 30 does not directly adhere to the vacuum insulating panel 26. A release layer 31 is formed on the surface. According to this method, the inner and outer boxes and the vacuum insulation panel are directly
Since it does not adhere to urethane foam, there is an effect that each member can be easily collected when the refrigerator is disassembled.
【０００６】また、特開昭６２−５９３７７号公報で
は、扉などの表面意匠板である外装材に離型剤を塗布し
たクラフトテープなどを貼り付け、その一部が外装材と
真空断熱パネルの上にくるように位置させて発泡断熱材
を充填した断熱板を提案して、真空断熱パネルが剥離し
易い構造であると示唆している。In Japanese Patent Application Laid-Open No. 62-59377, a kraft tape or the like coated with a mold release agent is applied to an exterior material such as a door, which is a surface design plate, and a part of the exterior material and the vacuum insulation panel are used. It proposes an insulation board filled with foam insulation placed on top, suggesting that the vacuum insulation panel has a structure that is easy to peel off.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、再利用
を目的として提案されたこれらの方法を応用して外箱に
離型処理を施した場合、曲げ応力が付加されたときに
は、真空断熱パネルと外箱との間に滑りが生じ、外箱、
真空断熱パネル、及び内箱から成るサンドイッチ構造体
としての剛性が確保できず、断熱箱体の強度が大幅に低
下するという問題があった。さらに、剥離によって外箱
などに膨れや弛みが発生しやすいというするという問題
もあった。However, when the outer box is subjected to a mold release treatment by applying these methods proposed for the purpose of reuse, when a bending stress is applied, the vacuum heat insulating panel and the outer panel are disconnected. Slip occurs between the box and the outer box,
There is a problem that the rigidity of the sandwich structure including the vacuum insulation panel and the inner box cannot be secured, and the strength of the heat insulation box is greatly reduced. Further, there is another problem that the outer box and the like tend to swell or loosen due to peeling.
【０００８】この発明は、これらの課題を解決すること
を目的になされたものであり、断熱箱体に利用した場合
にも、サンドイッチ構造体としての剛性が確保でき、し
かも、断熱箱体の解体時には再利用が可能な状態で容易
に回収できる真空断熱パネルとその製造方法、並びにこ
の真空断熱パネルを用いた断熱箱体を得ることを目的と
する。SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and when used in a heat insulating box, rigidity as a sandwich structure can be ensured. It is an object of the present invention to obtain a vacuum heat insulating panel which can be easily recovered in a state where it can be reused sometimes, a method for manufacturing the same, and a heat insulating box using the vacuum heat insulating panel.
【０００９】[0009]
【課題を解決するための手段】この発明の真空断熱パネ
ルは、大気圧下にあって形状を保持できる芯材を内部に
挿入して真空を保持してなる第一の外殻材の外側に、第
二の外殻材を真空吸着したものである。SUMMARY OF THE INVENTION A vacuum insulation panel according to the present invention has a core material capable of maintaining its shape under atmospheric pressure inserted inside the first shell material holding a vacuum. And the second outer shell material is vacuum-adsorbed.
【００１０】また、前記第二の外殻材を、発泡性樹脂と
接着可能な樹脂としたものである。Further, the second outer shell is made of a resin that can be bonded to a foamable resin.
【００１１】また、この発明の真空断熱パネルの製造方
法は、芯材を第一の外殻材に挿入する工程と、前記第一
の外殻材を第二の外殻材に挿入する工程と、真空雰囲気
下で前記第一の外殻材と前記第二の外殻材の開口部を同
時にシールする工程とを備えたものである。Further, the method for manufacturing a vacuum insulation panel according to the present invention includes the steps of: inserting a core into a first shell; and inserting the first shell into a second shell. And simultaneously sealing the openings of the first shell material and the second shell material in a vacuum atmosphere.
【００１２】また、第一の外殻材の内部に芯材を挿入
し、真空雰囲気下で前記第一の外殻材の開口部をシール
して真空パネルを形成する工程と、前記形成された真空
パネルを第二の外殻材に挿入し、真空雰囲気下で前記第
二の外殻材の開口部をシールする工程とを備えたもので
ある。A step of inserting a core material into the inside of the first shell material and sealing an opening of the first shell material in a vacuum atmosphere to form a vacuum panel; Inserting the vacuum panel into the second shell material and sealing the opening of the second shell material in a vacuum atmosphere.
【００１３】また、前記第一の外殻材をシールする接着
力を、前記第二の外殻材をシールする接着力より大きく
するものである。Further, the adhesive force for sealing the first outer shell material is made larger than the adhesive force for sealing the second outer shell material.
【００１４】さらに、この発明の断熱箱体は、大気圧下
にあって形状を保持できる芯材を内部に挿入して真空を
保持してなる第一の外殻材の外側に、第二の外殻材を真
空吸着して形成した真空断熱パネルを、内箱と外箱の間
隙に配設し、前記内箱と前記外箱の間の残りの空隙を発
泡性樹脂で充填するとともに、該発泡性樹脂が前記第二
の外殻材と接着してなるものである。Further, according to the heat insulating box of the present invention, a core material capable of maintaining its shape under atmospheric pressure is inserted into the inside thereof, and a second shell material is provided outside the first outer shell material which holds a vacuum. A vacuum insulation panel formed by vacuum-absorbing the outer shell material is disposed in the gap between the inner box and the outer box, and the remaining gap between the inner box and the outer box is filled with a foamable resin. The foamable resin is bonded to the second shell material.
【００１５】[0015]
【発明の実施の形態】実施の形態１ （１）真空断熱パネルの構造 図１は、この発明に係る真空断熱パネルの実施の形態１
の断面図である。真空断熱パネルは、芯材３がガスバリ
ヤ性を有する第一の外殻材１と、発泡性樹脂などと接着
可能な第二の外殻材２とで二重に包装された構造となっ
ている。芯材３は、連続した気孔を有する多孔質体から
なる成型品からなり、軽量で微細な気孔から形成されて
いることが好ましく、無機物や樹脂の粉末や発泡体が用
いられる。なかでも、連続気泡構造の発泡ウレタンは、
軽量であることに加え、小さな樹脂を骨材とした微細な
気孔から形成されている多孔体であるから、物質を伝わ
る伝熱を抑制するとともに、輻射による伝熱をも抑制す
るため、断熱性能が特に優れている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 (1) Structure of Vacuum Insulation Panel FIG. 1 shows a vacuum insulation panel according to Embodiment 1 of the present invention.
FIG. The vacuum insulation panel has a structure in which a core material 3 is double-packed with a first outer shell material 1 having a gas barrier property and a second outer shell material 2 which can be bonded to a foaming resin or the like. . The core material 3 is made of a molded article made of a porous body having continuous pores, and is preferably formed of lightweight and fine pores, and powder or foam of an inorganic substance or resin is used. Above all, urethane foam with open cell structure is
In addition to being lightweight, it is a porous body made of fine pores made of small resin aggregate, so it suppresses heat transfer through substances and also suppresses heat transfer by radiation, so it has insulation performance. Is particularly excellent.
【００１６】第一の外殻材１は、空気や有機ガスなどの
外気の侵入を阻止して真空度の低下を防止することを目
的に、非透気性であるアルミ箔１ａを中間層に配し、さ
らにその外側の層を表面の保護を目的として耐傷性に優
れる樹脂１ｂと、包材同志を接着するために熱融着が可
能な樹脂１ｃでサンドイッチした、図２に示すような構
造の多層シートとするのがよい。The first outer shell 1 is made of a non-permeable aluminum foil 1a in an intermediate layer for the purpose of preventing the invasion of the outside air such as air or organic gas to prevent the degree of vacuum from lowering. Further, the outer layer is sandwiched between a resin 1b having excellent scratch resistance for the purpose of protecting the surface and a resin 1c which can be heat-sealed for bonding the packaging materials together, and has a structure as shown in FIG. It is preferable to use a multilayer sheet.
【００１７】また、第二の外殻材２は、図３に示すよう
な構造の、発泡ウレタンとの接着が可能な樹脂２ａと、
第一の外殻材１の接着強度よりも低い接着強度を有する
熱融着が可能な樹脂２ｂとからなる。The second outer shell 2 is made of a resin 2a having a structure as shown in FIG. 3 and capable of bonding to urethane foam.
And a heat-fusible resin 2b having an adhesive strength lower than that of the first outer shell material 1.
【００１８】ここで、第一の外殻材１と第二の外殻材２
の間は、減圧状態に保持されて密着して、両外殻材が滑
って移動することのないように固定されるため、取り扱
い上は単一の外殻で形成された真空断熱パネルとなんら
変わりがなく、断熱壁の強度増強に寄与する。Here, the first shell material 1 and the second shell material 2
During this time, the outer shell material is held in close contact with the vacuum and fixed so that the outer shell materials do not slide and move. It does not change and contributes to strengthening the heat insulation wall.
【００１９】なお、第一の外殻材１に使われるアルミ箔
１ａは、伝熱量が多いため、ピンホールなどが発生して
非透気性が損なわれない程度に、可能な限り薄いものを
用いることが好ましく、６ミクロン程度のアルミ箔を用
いることが最も好ましい。The aluminum foil 1a used for the first shell material 1 is as thin as possible to the extent that pinholes or the like are not generated and impermeability is not impaired due to a large amount of heat transfer. It is preferable to use an aluminum foil of about 6 microns.
【００２０】また、耐傷性に優れる樹脂１ｂには、ポリ
エチレンテレフタレートなどの非吸水性を兼ね備えた硬
質の樹脂が好ましく、その厚さは１０〜３０ミクロンが
好ましい。The resin 1b having excellent scratch resistance is preferably a hard resin having a non-water-absorbing property, such as polyethylene terephthalate, and preferably has a thickness of 10 to 30 microns.
【００２１】さらに、包材同志の接着に用いる熱融着が
可能な樹脂１ｃとしては、非透水性に優れたポリエチレ
ンやポリプロピレンなどの結晶性を有する熱可塑性樹脂
が好ましく、その厚さはガスの収着量に基づく透過を抑
制するうえで、２０〜１００ミクロンが好ましい。Further, as the heat-fusible resin 1c used for bonding the packaging materials, a thermoplastic resin having excellent water impermeability, such as polyethylene or polypropylene, having a crystallinity is preferable. In order to suppress the transmission based on the sorption amount, 20 to 100 microns is preferable.
【００２２】第二の外殻材として最外層を成し、発泡ウ
レタンとの接着が可能な樹脂２ａとしては、真空断熱パ
ネルの取り扱い時に必要な耐傷性に優れることも含め
て、ナイロン樹脂が好ましく、その厚さは１０〜２０ミ
クロンであることが好ましい。As the resin 2a which forms the outermost layer as the second outer shell material and can be bonded to the urethane foam, a nylon resin is preferable, including the fact that it is excellent in the scratch resistance required when handling the vacuum insulation panel. Preferably, its thickness is between 10 and 20 microns.
【００２３】また、第二の外殻の熱融着が可能な樹脂２
ｂには、第一の外殻に利用した熱可塑性樹脂を５ミクロ
ン程度に薄くして用いても良いが、外殻の内外を貫通す
るような欠陥を有さずに第一の外殻と第二の外殻の間の
真空を維持するためには、２０〜１００ミクロン程度の
ポリエステル系樹脂を用いることが好ましい。しかし、
何れの場合においても、第一の外殻材１における接着強
度よりも有意に小さい接着強度、好ましくは半分以下、
さらに好ましくは約５分の１の接着強度が得られるよう
に調整することが肝要である。Further, a resin 2 capable of heat-sealing the second shell is provided.
For b, the thermoplastic resin used for the first outer shell may be thinned to about 5 microns and used, but the first outer shell and the first outer shell do not have a defect penetrating inside and outside of the outer shell. In order to maintain a vacuum between the second outer shells, it is preferable to use a polyester resin of about 20 to 100 microns. But,
In any case, the bonding strength is significantly smaller than the bonding strength of the first shell material 1, preferably less than half,
More preferably, it is important to adjust the adhesive strength so as to obtain about one fifth of the adhesive strength.
【００２４】（２）真空断熱パネルの製造方法 図４は、実施の形態１の真空断熱パネルの製造工程を示
す概念図である。芯材３を１２０℃で２時間以上の加熱
によって吸着した水分を除去した後、三方をシールした
第一の外殻材１に挿入し、さらにそれを同じく三方をシ
ールした第二の外殻材２に挿入する。(2) Manufacturing Method of Vacuum Insulated Panel FIG. 4 is a conceptual diagram showing a manufacturing process of the vacuum insulated panel of the first embodiment. After removing the moisture adsorbed by heating the core material 3 at 120 ° C. for 2 hours or more, the core material 3 is inserted into the first outer shell material 1 sealed on three sides, and further inserted into the second outer shell material also sealed on three sides. Insert into 2.
【００２５】次に、真空パネル成形機４によって、真空
パネル成形機内が所定の真空度になるまで、真空引きす
る。そして、所定の真空度に到達後、第一の外殻材１及
び第二の外殻材２の開口部を、同時に加圧しながらヒー
ター５で加熱し、その後ヒーターを切って冷却し熱シー
ルする。最後に、真空を解放して、パネルを取り出すこ
とによって、真空断熱パネルを得る。Next, vacuum is drawn by the vacuum panel forming machine 4 until the inside of the vacuum panel forming machine reaches a predetermined degree of vacuum. Then, after reaching a predetermined degree of vacuum, the openings of the first outer shell material 1 and the second outer shell material 2 are heated by the heater 5 while simultaneously applying pressure, and then the heater is turned off to cool and heat seal. . Finally, the vacuum insulation panel is obtained by releasing the vacuum and removing the panel.
【００２６】真空パネル成形機内の真空度は、真空断熱
パネルの大きさや外殻材との隙間の大きさによって影響
される真空断熱パネル内部の真空度によって決定され、
真空断熱パネル内部の真空度が、１×１０0 〜１×１０
-3Ｔｏｒｒを確保できることが好ましい。The degree of vacuum in the vacuum panel forming machine is determined by the degree of vacuum inside the vacuum insulation panel which is affected by the size of the vacuum insulation panel and the size of the gap with the outer shell material.
The degree of vacuum inside the vacuum insulation panel is 1 × 10 0 to 1 × 10
It is preferable that -3 Torr can be secured.
【００２７】実施の形態２ （１）真空断熱パネルの構造 図５は、この発明に係る真空断熱パネルの実施の形態２
の断面図であり、各種構成材料は実施の形態１の場合と
同様である。Embodiment 2 (1) Structure of Vacuum Insulation Panel FIG. 5 shows a vacuum insulation panel according to Embodiment 2 of the present invention.
FIG. 3 is a cross-sectional view of the first embodiment, and various constituent materials are the same as those in the first embodiment.
【００２８】（２）真空断熱パネルの製造方法 図６は、実施の形態２の真空断熱パネルの工程図であ
る。実施の形態１と同様に、芯材３を１２０℃で２時間
以上の加熱によって乾燥した後、三方をシールした第一
の外殻材１に挿入し、真空パネル成形機４でパネル内部
の真空度が、１×１０0 〜１×１０-3Ｔｏｒｒとなるよ
うな真空度まで真空引きし、第一の外殻材１の開口部を
熱シールする。これによって得られた真空断熱パネル
を、さらに、三方を熱シールした第二の外殻材２に挿入
し、同様の工程で第二の外殻材２の開口部を熱シールす
れば、目的とする二重包装構造の真空断熱パネルを得る
ことができる。(2) Manufacturing Method of Vacuum Insulated Panel FIG. 6 is a process diagram of the vacuum insulated panel according to the second embodiment. As in the first embodiment, the core material 3 is dried by heating at 120 ° C. for 2 hours or more, then inserted into the first outer shell material 1 having three sides sealed, and the vacuum inside the panel is reduced by the vacuum panel forming machine 4. The degree of vacuum is reduced to a degree of 1 × 10 0 to 1 × 10 −3 Torr, and the opening of the first outer shell 1 is heat-sealed. The vacuum insulation panel obtained in this way is further inserted into the second outer shell material 2 heat-sealed on three sides, and the opening of the second outer shell material 2 is heat-sealed in the same process, thereby achieving the object. A vacuum insulation panel having a double packaging structure can be obtained.
【００２９】実施の形態３ （１）本発明の真空断熱パネルを利用した断熱箱体 実施の形態２で得られた真空断熱パネル６を、壁内に配
設した断熱箱体の断面図を図７に示す。真空断熱パネル
６は、薄鋼板の折り曲げ加工によって得られた外箱７に
接着剤８を介して配設される。そして、ＡＢＳ樹脂など
の真空成形品である内箱９を外箱７と嵌合させ、さら
に、残りの箱体外装をなす部品や内装部品取り付け用部
品など（図示せず）を、所定の位置に取り付けて断熱箱
体の外殻を形成する。Embodiment 3 (1) Insulation Box Utilizing Vacuum Insulation Panel of the Present Invention A sectional view of a heat insulation box in which the vacuum insulation panel 6 obtained in Embodiment 2 is disposed in a wall. FIG. The vacuum insulation panel 6 is disposed via an adhesive 8 on an outer box 7 obtained by bending a thin steel plate. Then, the inner box 9, which is a vacuum molded product such as ABS resin, is fitted to the outer box 7, and the remaining parts forming the exterior of the box and the parts for mounting the interior parts (not shown) are moved to predetermined positions. To form the outer shell of the insulation box.
【００３０】この断熱箱体の外殻を、発泡性樹脂の発泡
および流動に伴って発生する圧力によって変形を来さな
いように、発泡ジグに挿入して固定した後、内箱と外箱
の間隙に独立気泡を有する発泡ウレタン１０を注入す
る。発泡ウレタン１０は、発泡による樹脂の膨張によっ
て泡状となり、間隙内の隅々まで充填する。このまま、
所定の硬化に要する時間を経過したならば、発泡ジグを
開放して取り出せば、図７に示す壁構造を備えた断熱箱
体を得ることできる。The outer shell of the heat insulating box is inserted and fixed in a foam jig so as not to be deformed by the pressure generated by foaming and flowing of the foamable resin. Urethane foam 10 having closed cells is injected into the gap. The urethane foam 10 becomes foamy due to expansion of the resin due to foaming, and fills every corner in the gap. like this,
If the time required for the predetermined curing has elapsed, the foam jig is opened and taken out to obtain an insulated box having a wall structure shown in FIG.
【００３１】この様にして得られた断熱箱体において、
真空断熱パネルの第二の外殻材２は、発泡ウレタン１０
および外箱７と接着している。また、真空断熱パネルの
第一の外殻材１と第二の外殻材２との間は減圧により密
着している。したがって、断熱箱体にかかる外力のう
ち、最も変形に寄与する剪断力に対する壁の剛性を低下
させることなく、単一の外殻材から成る真空断熱パネル
を用いた箱体と同等の強度も確保できる。In the heat-insulating box thus obtained,
The second outer shell material 2 of the vacuum insulation panel is made of urethane foam 10
And the outer box 7. Further, the first outer shell material 1 and the second outer shell material 2 of the vacuum insulation panel are in close contact with each other by decompression. Therefore, among external forces applied to the heat-insulating box, the same strength as a box using a vacuum heat-insulating panel made of a single shell material is secured without reducing the rigidity of the wall against the shearing force that contributes to deformation most. it can.
【００３２】（２）断熱箱体の解体 実施の形態３の断熱箱体は、解体のため外箱を剥がす際
に、外箱に接着した真空断熱パネルの第二の外殻材２が
破れて第二の外殻材による真空状態の破壊をきたすが、
第一の外殻材１は何等の損傷を受けることなく、第二の
外殻材２から容易に剥離して、第一の外殻材１に包まれ
た真空断熱パネルを、再利用可能な状態で回収すること
ができる。(2) Disassembly of the heat-insulating box In the heat-insulating box of the third embodiment, when the outer box is peeled for disassembly, the second outer shell material 2 of the vacuum heat-insulating panel adhered to the outer box is broken. Although the vacuum state is broken by the second outer shell material,
The first outer shell 1 can be easily separated from the second outer shell 2 without any damage, and the vacuum insulation panel wrapped in the first outer shell 1 can be reused. It can be recovered in a state.
【００３３】なお、実施の形態２で示した真空断熱パネ
ルを使用した場合は、第一の外殻材１と第二の外殻材２
が、何れの部分においても接着していないので、剥離が
特に容易である。When the vacuum heat insulating panel shown in the second embodiment is used, the first outer shell 1 and the second outer shell 2
However, since it is not adhered to any part, peeling is particularly easy.
【００３４】一方、実施の形態１で示した真空断熱パネ
ルを使用した場合には、芯材の挿入口である開口部を同
時に接着する工程を経ているので、その部分を引き剥が
す必要がある。しかし、第二の外殻材２は、そのシール
強度を接着層の種類を変えたり塗布厚さを薄くして、第
一の外殻材１のシールの接着強度より弱いものにしてい
るので、第一の外殻材１に損傷を与えることなく、第二
の外殻材２のみを剥離することが可能である。On the other hand, when the vacuum heat insulating panel shown in the first embodiment is used, it is necessary to peel off the portion because the step of simultaneously bonding the openings, which are the insertion holes for the core material, has been performed. However, the second outer shell 2 has a weaker sealing strength than the first outer shell 1 because the sealing strength of the second outer shell 2 is changed by changing the type of the adhesive layer or by reducing the coating thickness. It is possible to peel off only the second outer shell material 2 without damaging the first outer shell material 1.
【００３５】また、第二の外殻材２のシートの厚さを薄
くして、その引っ張り強度を外箱７への接着強度より低
いものとしたり、第一の外殻材１同志のシール強度より
低いものに調整することによっても、同様に、第一の外
殻材で真空が保持された真空断熱パネルを、再利用可能
な状態で回収することができる。Further, the thickness of the sheet of the second outer shell material 2 may be reduced so that its tensile strength is lower than the adhesive strength to the outer box 7, or the sealing strength of the first outer shell material 1 may be reduced. Similarly, by adjusting the vacuum insulation panel to a lower one, the vacuum insulation panel in which the vacuum is maintained by the first outer shell material can be recovered in a reusable state.
【００３６】このように、回収された真空断熱パネル
は、少なくとも第一の外殻材１により真空が確保される
ため、その断熱性能またはそれに代替できる特性を確認
した後に、そのままの状態で、あるいは、再度第二の外
殻材で包装して、冷蔵庫箱体などに再利用できる。As described above, since the vacuum insulation panel of the recovered vacuum insulation panel has a vacuum secured by at least the first outer shell material 1, after confirming its heat insulation performance or a property that can be substituted for it, the vacuum insulation panel is left as it is, or It can be re-packaged with the second outer shell material and reused in a refrigerator box or the like.
【００３７】なお、本発明の断熱箱体の応用は、冷蔵庫
に限定されるものではなく、例えば、車載用小型冷蔵庫
やプレハブ式簡易冷蔵庫、保冷車やハイプや建物の保温
材など、保温及び保冷製品の断熱用部品としての応用も
可能であり、その要旨を脱し得ない範囲で種々変形して
実施することができる。The application of the heat-insulating box of the present invention is not limited to refrigerators. The product can be applied as a heat insulating part, and can be variously modified and implemented without departing from the gist thereof.
【００３８】[0038]
【発明の効果】請求項１に係る真空断熱パネルによれ
ば、真空を保持して成る第一の外殻材の内部に大気圧下
にあっても形状を保持する芯材を挿入し、さらにその第
一の外殻材外周を第二の外殻材で包装したので、再利用
のために断熱箱体から真空断熱パネルを回収する際、最
外装である第二の外郭材が破壊されることがあっても、
真空断熱パネルを使用可能な状態で回収できる。According to the vacuum heat insulating panel of the first aspect, a core material that retains its shape even under atmospheric pressure is inserted into the inside of the first outer shell material that holds a vacuum. Since the outer periphery of the first outer shell material is wrapped with the second outer shell material, the second outer shell material, which is the outermost armor, is destroyed when the vacuum insulation panel is collected from the heat insulation box for reuse. Even if it happens,
The vacuum insulation panel can be collected in a usable state.
【００３９】請求項２に係る真空断熱パネルによれば、
第二の外殻材が、発泡性樹脂と接着する樹脂を用いたの
で、曲げや剪断の外力が加わっても真空断熱パネルの滑
りが発生せず、発泡ウレタンなどと共にサンドイッチ構
造を形成しても、剛性を低下させることがなくなる。According to the vacuum heat insulating panel of the second aspect,
Since the second outer shell material is made of a resin that adheres to the foaming resin, even if an external force such as bending or shearing is applied, the vacuum insulation panel does not slip, and even if a sandwich structure is formed with urethane foam or the like. Therefore, the rigidity is not reduced.
【００４０】請求項３に係る真空断熱パネルの製造方法
によれば、芯材を包囲する二重構造の外殻材の開口部を
同時シールするので、再利用のために回収可能な真空断
熱パネルを、簡単な工程で得ることができる。According to the method of manufacturing a vacuum heat insulating panel according to the third aspect, since the openings of the double shell material surrounding the core material are simultaneously sealed, the vacuum heat insulating panel can be recovered for reuse. Can be obtained by a simple process.
【００４１】請求項４に係る真空断熱パネルの製造方法
によれば、第一の外殻材の開口部ををシールして真空パ
ネルを形成し、さらにその真空パネルを第二の外郭材に
挿入しその開口部をシールするので、再利用のため断熱
箱体からの回収時、最外装である第二の外郭材の破壊が
第一の外殻材まで影響せず、真空断熱パネルをより確実
に回収できる効果がある。According to the method for manufacturing a vacuum heat insulating panel according to the fourth aspect, a vacuum panel is formed by sealing the opening of the first shell material, and the vacuum panel is inserted into the second shell material. Since the opening is sealed, the second outer shell, which is the outermost layer, is not affected by the destruction of the outer shell when collecting from the heat insulating box for reuse. There is an effect that can be collected.
【００４２】請求項５に係る真空断熱パネルの製造方法
によれば、第一の外殻材が第二の外殻材から容易に剥離
でき、使用可能な真空断熱パネルが確実に回収できる。According to the method of manufacturing a vacuum heat insulating panel according to the fifth aspect, the first outer shell material can be easily separated from the second outer shell material, and the usable vacuum heat insulating panel can be reliably recovered.
【００４３】請求項６に係る断熱箱体によれば、発泡性
樹脂を充填した壁の剛性が低下せず、箱体の強度を維持
できるとともに、真空断熱パネルを簡単に再利用できる
効果を有する。According to the heat insulating box of the sixth aspect, the rigidity of the wall filled with the foaming resin does not decrease, the strength of the box can be maintained, and the vacuum heat insulating panel can be easily reused. .
【図１】 実施の形態１に係る真空断熱パネルの断面図
である。FIG. 1 is a sectional view of a vacuum heat insulating panel according to a first embodiment.
【図２】 本発明の真空断熱パネルに使用する第一の外
殻材の構造説明図である。FIG. 2 is a structural explanatory view of a first outer shell material used for the vacuum heat insulating panel of the present invention.
【図３】 本発明の真空断熱パネルに使用する第二の外
殻材の構造説明図である。FIG. 3 is a structural explanatory view of a second outer shell material used for the vacuum heat insulating panel of the present invention.
【図４】 実施の形態１に係る真空断熱パネルの製造工
程図である。FIG. 4 is a manufacturing process diagram of the vacuum heat insulating panel according to the first embodiment.
【図５】 実施の形態２に係る真空断熱パネルの断面図
である。FIG. 5 is a sectional view of a vacuum heat insulating panel according to a second embodiment.
【図６】 実施の形態２に係る真空断熱パネルの製造工
程図である。FIG. 6 is a manufacturing process diagram of the vacuum heat insulating panel according to the second embodiment.
【図７】 実施の形態３に係る断熱箱体の構造を示す断
面図である。FIG. 7 is a cross-sectional view illustrating a structure of a heat-insulating box according to a third embodiment.
【図８】 従来の真空断熱パネルを用いた断熱箱体の構
造を示す断面図である。FIG. 8 is a cross-sectional view showing a structure of a heat insulating box using a conventional vacuum heat insulating panel.
【図９】 従来の断熱箱体の構造を示す断面図である。FIG. 9 is a cross-sectional view showing a structure of a conventional heat insulating box.
１ 第一の外殻材、１ａ アルミ箔、１ｂ 耐傷性の樹
脂、１ｃ 熱融着が可能な樹脂、２ 第二の外殻材、２
ａ 発泡ウレタンとの接着が可能な樹脂、２ｂ熱融着が
可能な樹脂、３ 芯材、４ 真空パネル成形機、５ ヒ
ーター、６真空断熱パネル、７ 外箱、８ 接着剤、９
内箱、１０ 発泡ウレタン。DESCRIPTION OF SYMBOLS 1 First shell material, 1a Aluminum foil, 1b Scratch resistant resin, 1c Heat-fusible resin, 2 Second outer shell material, 2
a Resin capable of bonding to urethane foam, 2b Resin capable of heat fusion, 3 core material, 4 vacuum panel forming machine, 5 heater, 6 vacuum insulation panel, 7 outer box, 8 adhesive, 9
Inner box, 10 urethane foam.
Claims (6)
を内部に挿入して真空を保持してなる第一の外殻材の外
側に、第二の外殻材を真空吸着したことを特徴とする真
空断熱パネル。1. A second outer shell material is vacuum-adsorbed to the outside of a first outer shell material which holds a vacuum by inserting a core material capable of maintaining a shape under atmospheric pressure into the inside. A vacuum insulation panel characterized by the following.
可能な樹脂とすることを特徴とする請求項１に記載の真
空断熱パネル。2. The vacuum insulation panel according to claim 1, wherein the second outer shell is made of a resin that can be bonded to a foamable resin.
開口部を同時にシールする工程とを備えたことを特徴と
する真空断熱パネルの製造方法。A step of inserting a core into a first shell; a step of inserting the first shell into a second shell; and a step of inserting the first shell in a vacuum atmosphere. And simultaneously sealing the opening of the second outer shell material.
空雰囲気下で前記第一の外殻材の開口部をシールして真
空パネルを形成する工程と、 前記形成された真空パネルを第二の外殻材に挿入し、真
空雰囲気下で前記第二の外殻材の開口部をシールする工
程とを備えたことを特徴とする真空断熱パネルの製造方
法。4. A step of inserting a core material into the inside of the first shell material, sealing the opening of the first shell material in a vacuum atmosphere, and forming a vacuum panel, Inserting the vacuum panel into the second shell material and sealing the opening of the second shell material in a vacuum atmosphere.
を、前記第二の外殻材をシールする接着力より大きくす
ることを特徴とする請求項３に記載の真空断熱パネルの
製造方法。5. The production of a vacuum insulation panel according to claim 3, wherein an adhesive force for sealing the first outer shell material is larger than an adhesive force for sealing the second outer shell material. Method.
を内部に挿入して真空を保持してなる第一の外殻材の外
側に、第二の外殻材を真空吸着して形成した真空断熱パ
ネルを、内箱と外箱の間隙に配設し、 前記内箱と前記外箱の間の残りの空隙を発泡性樹脂で充
填するとともに、該発泡性樹脂が前記第二の外殻材と接
着してなる断熱箱体。6. A second outer shell material is vacuum-adsorbed to the outside of the first outer shell material which holds a vacuum by inserting a core material capable of maintaining its shape under atmospheric pressure. The formed vacuum insulation panel is disposed in the gap between the inner box and the outer box, and the remaining gap between the inner box and the outer box is filled with a foamable resin, and the foamable resin is the second foam. Insulated box body bonded to outer shell material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32729297A JP4085209B2 (en) | 1997-11-28 | 1997-11-28 | Vacuum insulation panel and insulation box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32729297A JP4085209B2 (en) | 1997-11-28 | 1997-11-28 | Vacuum insulation panel and insulation box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11159694A true JPH11159694A (en) | 1999-06-15 |
| JP4085209B2 JP4085209B2 (en) | 2008-05-14 |
Family
ID=18197506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32729297A Expired - Fee Related JP4085209B2 (en) | 1997-11-28 | 1997-11-28 | Vacuum insulation panel and insulation box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4085209B2 (en) |
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| JP2005069657A (en) * | 2003-08-28 | 2005-03-17 | Matsushita Electric Ind Co Ltd | Vacuum thermal insulation material and its disassembly and recovery method |
| JP2006112439A (en) * | 2004-10-12 | 2006-04-27 | Hitachi Home & Life Solutions Inc | Vacuum heat insulating material and refrigerator using the vacuum heat insulating material |
| JP2009222098A (en) * | 2008-03-14 | 2009-10-01 | Kurabo Ind Ltd | Vacuum heat insulating material |
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| JP2014163494A (en) * | 2013-02-27 | 2014-09-08 | Toshiba Home Technology Corp | Heat insulator |
| JP2015143555A (en) * | 2014-01-31 | 2015-08-06 | 三菱電機株式会社 | Vacuum heat insulation material and heat insulation box using the same |
| CN107023735A (en) * | 2016-02-01 | 2017-08-08 | 株式会社 Kcc | The manufacture method and manufacture device of vacuum heat insulation materials |
| JP2017172806A (en) * | 2017-06-05 | 2017-09-28 | 東芝ホームテクノ株式会社 | Heat insulator |
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|---|---|
| JP4085209B2 (en) | 2008-05-14 |
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