JPH0121435B2 - - Google Patents
Info
- Publication number
- JPH0121435B2 JPH0121435B2 JP58103138A JP10313883A JPH0121435B2 JP H0121435 B2 JPH0121435 B2 JP H0121435B2 JP 58103138 A JP58103138 A JP 58103138A JP 10313883 A JP10313883 A JP 10313883A JP H0121435 B2 JPH0121435 B2 JP H0121435B2
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- outer box
- box
- film
- insulation material
- 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.)
- Expired
Links
- 239000006260 foam Substances 0.000 claims description 16
- 239000011810 insulating material Substances 0.000 claims description 16
- 239000012774 insulation material Substances 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 5
- 235000019362 perlite Nutrition 0.000 description 5
- 239000010451 perlite Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Refrigerator Housings (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、冷蔵庫、冷凍庫等の断熱箱体に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat insulating box for refrigerators, freezers, etc.
従来例の構成とその問題点
従来、断熱箱体において、断熱性能を向上する
ため発泡断熱材がグラスウールにかわつて使用さ
れてきた。しかし、近年、さらに断熱性能を向上
して庫内容積の向上、または外容積の減少を図る
ためパーライト等の微粉末の断熱材を用いるもの
が提案されている。この従来例の構成を第１図、
第２図に従つて説明する。１はプレコート板等を
折り曲げて形成した外箱２と、ABS樹脂等の合
成樹脂を真空成形等により成形した内箱３と、両
箱２，３の間にポリウレタン等の発泡断熱材４を
設けた断熱箱体である。Conventional Structure and Problems Conventionally, foamed heat insulating materials have been used in place of glass wool in heat insulating boxes to improve heat insulating performance. However, in recent years, in order to further improve the insulation performance and increase the internal volume or reduce the external volume, it has been proposed to use a heat insulating material made of fine powder such as perlite. The configuration of this conventional example is shown in Figure 1.
This will be explained according to FIG. 1 includes an outer box 2 formed by bending a pre-coated board or the like, an inner box 3 formed from synthetic resin such as ABS resin by vacuum forming, etc., and a foam insulation material 4 such as polyurethane between the two boxes 2 and 3. It is an insulated box.
前記外箱２は平板のとき、断熱箱体１のコーナ
ー部５に相当する位置をのぞいて、あらかじめパ
ーライト等の無機質の断熱材６を取付けている。
この断熱材６は微粉末であるため、金属層を含む
多層のフイルムと外箱２とで形成される空間に収
容して空間の内部を10-1mmＨｇ以下に保持してい
る。このとき、フイルム７は前記コーナー部５に
相当する部分８で、内箱３に面する側にポリアミ
ド系等のホツトメルト接着材を介して熱加工によ
り貼付けている。また、断熱材６を収容したフイ
ルム７の側壁面９を約45度の傾きに形成して、平
板が折り曲げられても相隣り合う断熱材が当らな
いようにしている。 When the outer box 2 is a flat plate, an inorganic heat insulating material 6 such as perlite is attached in advance except for the positions corresponding to the corner portions 5 of the heat insulating box body 1.
Since this heat insulating material 6 is a fine powder, it is housed in a space formed by a multilayer film including a metal layer and the outer box 2, and the inside of the space is maintained at 10 -1 mmHg or less. At this time, the film 7 is attached to the side facing the inner box 3 at a portion 8 corresponding to the corner portion 5 by heat processing via a hot melt adhesive such as polyamide. Further, the side wall surface 9 of the film 7 containing the heat insulating material 6 is formed to have an inclination of about 45 degrees, so that even if the flat plate is bent, adjacent heat insulating materials do not touch each other.
この様な構造であつたため、隣接するフイルム
７の側壁面９間には外箱２を折曲すると隙間１０
ができて、この隙間にエアー溜りが生じ、発泡断
熱材４が流れ込み難く、キヤビテイ部１１として
残るため断熱性能が低下するばかりか、断熱箱体
１としての強度の低下も考えられる。 Because of this structure, there is a gap 10 between the side walls 9 of adjacent films 7 when the outer box 2 is bent.
This creates an air pocket in this gap, making it difficult for the foamed heat insulating material 4 to flow in and remaining as a cavity portion 11, which not only reduces the heat insulating performance but also reduces the strength of the heat insulating box 1.
発明の目的
本発明は発泡断熱材の発泡時に、ガス抜きを円
滑に行うことによりキヤビテイ部の発生を防止す
ることを目的とする。OBJECTS OF THE INVENTION An object of the present invention is to prevent the formation of cavities by smoothly degassing during foaming of a foamed heat insulating material.
発明の構成
この目的を達成するために、本発明は隣接する
フイルムの側壁面間のすき間で外箱折り曲げコー
ナ部に空気抜き用の孔を設け、この孔に連続気泡
のフオームを貼り付けたもので、隙間に溜つたエ
アーを孔より外部へ逃がし、発泡断熱材を隙間に
導びいてキヤビテイ部の発生の防止をするもので
ある。Structure of the Invention In order to achieve this object, the present invention provides an air vent hole in the folded corner of the outer box in the gap between the side wall surfaces of adjacent films, and an open-cell foam is pasted to this hole. The air accumulated in the gap is released from the hole to the outside, and the foamed heat insulating material is introduced into the gap to prevent the formation of cavities.
実施例の説明
以下本発明の一実施例について、第３図、第４
図を参考に説明するが従来と同一構造については
同一番号を付けて説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.
The description will be made with reference to the drawings, and the same structures as the conventional ones will be described using the same numbers.
１２は金属層を有する多層のフイルムで、外箱
１５が平板のときに、コーナ部５に相当する部分
１３にポリアミド系のホツトメルト接着剤を介し
て熱加工により貼付けている。この外箱１５とフ
イルム１２の接合部には発泡断熱材４のガス抜き
用の0.3〜0.6mm細孔１４を複数個形成されてい
る。また、外箱２とフイルム１２の空間には従来
と同様パーライト等の無機質の断熱材９が充填さ
れ、空間を10-1mmＨｇ以下にしている。 Reference numeral 12 denotes a multilayer film having a metal layer, and when the outer box 15 is a flat plate, it is attached to a portion 13 corresponding to the corner portion 5 by heat processing via a polyamide hot melt adhesive. A plurality of 0.3 to 0.6 mm pores 14 for venting gas from the foamed heat insulating material 4 are formed at the joint between the outer box 15 and the film 12. Further, the space between the outer box 2 and the film 12 is filled with an inorganic heat insulating material 9 such as perlite, as in the conventional case, to keep the space below 10 -1 mmHg.
この外箱１５とフイルム１２の作り方は、外箱
１５の平板状態において断熱材６を乗せ、その上
からフイルム１２をかぶせて、フイルム１２を外
箱２に熱加工で取付るとともに、同時に容器の内
で10-1mmＨｇ以下とするものである。 The method for making the outer box 15 and film 12 is to place the heat insulating material 6 on the flat plate of the outer box 15, cover the film 12 on top of it, attach the film 12 to the outer box 2 by heat processing, and at the same time attach the film 12 to the outer box 2. within 10 -1 mmHg.
１６は前記細孔１４を覆う、連続気泡のフオー
ムで、フイルム１２の上に貼付られている。 Reference numeral 16 denotes an open-cell foam that covers the pores 14 and is pasted onto the film 12.
そして、外箱１５は平板状態から折曲してフイ
ルム１２の相隣り合う側壁が当らないように形成
されるものであるが、フイルム１２の相隣り合う
側壁１７間に隙間１８を形成される。このように
形成された外箱１５内に内箱３を入れて発泡断熱
材４を充填するものである。 Although the outer box 15 is bent from a flat plate so that the adjacent side walls of the film 12 do not touch each other, a gap 18 is formed between the adjacent side walls 17 of the film 12. The inner box 3 is placed inside the outer box 15 formed in this way, and the foamed heat insulating material 4 is filled therein.
このようなものにおいて、外箱１５内に内箱３
を入れて、、発泡断熱材４を充填すると、初期に
発泡断熱材４がフオーム流動体となり、泡化重合
反応をしながら両箱１５，３間に流れる。そし
て、隙間１８において側壁１７の抵抗を受けてフ
オーム流動体の流れが遅れるが、細孔１４より隙
間１８のガスが外部へ抜けるため、フオーム流動
体が流れ込んで、この隙間１８にも発泡断熱材４
が充填されるものである。なお、細孔１４は0.3
〜0.6mmなので発泡断熱材４の泡が洩れ出ない大
きさに形成されているが、連続気泡のフオームを
貼り付けておくことにより洩れは完全になくな
る。また、隙間１８に発泡断熱材４が位置する
と、従来のようにキヤビテイー発生しないので、
強度的にも強くなるものである。 In such a case, the inner box 3 is inside the outer box 15.
When the foamed heat insulating material 4 is filled, the foamed heat insulating material 4 initially becomes a foam fluid and flows between the two boxes 15 and 3 while undergoing a foaming polymerization reaction. The flow of the foam fluid is delayed in the gap 18 due to the resistance of the side wall 17, but since the gas in the gap 18 escapes to the outside through the pores 14, the foam fluid flows into the gap 18 as well. 4
is filled. In addition, pore 14 is 0.3
Since it is ~0.6 mm, it is formed to a size that prevents the bubbles of the foam insulation material 4 from leaking out, but by pasting the open cell foam, leakage can be completely eliminated. Furthermore, if the foam insulation material 4 is located in the gap 18, cavities will not occur as in the conventional case.
It also becomes stronger.
発明の効果
以上の説明からも明らかな様に、本発明は、外
箱とフイルムとの間にパーライト等の粉末断熱材
を収容して形成した真空断熱材と、前記外箱とフ
イルムとを熱融着したコーナー部と、そのコーナ
ー部に連続気泡フオームを貼りつけた細孔とを有
し、かつ、外箱の中に内箱を位置させるとともに
両箱間に発泡断熱材を設けた断熱箱体で、コーナ
ー部に真空断熱材のくびれである融着部がくる事
により、断熱性能を低下する事なく、ガス抜きを
円滑にし、キヤビテイの発生を抑え、発泡断熱材
の洩れを防止し、かつ断熱箱体としての強度を維
持するものである。Effects of the Invention As is clear from the above description, the present invention provides a vacuum insulation material formed by housing a powder insulation material such as perlite between an outer box and a film, and a vacuum insulation material formed by storing a powder insulation material such as perlite between an outer box and a film, and An insulating box that has fused corner parts and pores with open-cell foam pasted to the corner parts, and has an inner box located inside the outer box and a foam insulation material between the two boxes. By placing the fused part, which is the constriction of the vacuum insulation material, at the corner of the body, it allows for smooth degassing, suppresses the formation of cavities, and prevents leakage of the foam insulation material, without reducing the insulation performance. It also maintains its strength as an insulating box.
第１図は従来の断熱箱体の一部切欠した斜視
図、第２図は第１図―′線の断面図、第３図
は本発明の一実施例を示す第２図相当の断熱箱体
の断面図、第４図は同第３図の外箱の断面図であ
る。
３…内箱、４…発泡断熱材、１２…フイルム、
１４…細孔、１５…外箱、１６…フオーム。
Fig. 1 is a partially cutaway perspective view of a conventional heat insulating box, Fig. 2 is a sectional view taken along the line -' in Fig. 1, and Fig. 3 is a heat insulating box equivalent to Fig. 2 showing an embodiment of the present invention. A cross-sectional view of the body, FIG. 4, is a cross-sectional view of the outer box of FIG. 3. 3...Inner box, 4...Foam insulation material, 12...Film,
14... Pore, 15... Outer box, 16... Foam.
Claims (1)
て形成した真空断熱材と、前記、外箱とフイルム
とを熱融着したコーナー部と、そのコーナー部に
連続気泡フオームを貼りつけた細孔とを有し、前
記、外箱の中に内箱を位置させるとともに、両箱
間に発泡断熱材を設けた断熱箱体。1. A vacuum insulation material formed by accommodating a powder insulation material between the outer box and the film, a corner section where the outer box and the film are heat-sealed, and an open cell foam attached to the corner section. A heat insulating box having pores, an inner box located inside the outer box, and a foam heat insulating material provided between both boxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10313883A JPS59229165A (en) | 1983-06-08 | 1983-06-08 | Heat-insulating box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10313883A JPS59229165A (en) | 1983-06-08 | 1983-06-08 | Heat-insulating box body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59229165A JPS59229165A (en) | 1984-12-22 |
| JPH0121435B2 true JPH0121435B2 (en) | 1989-04-20 |
Family
ID=14346162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10313883A Granted JPS59229165A (en) | 1983-06-08 | 1983-06-08 | Heat-insulating box body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59229165A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53137462A (en) * | 1977-05-07 | 1978-11-30 | Matsushita Refrig Co | Manufacturing process of heat-insulating box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856544Y2 (en) * | 1979-02-14 | 1983-12-27 | 松下冷機株式会社 | refrigerator door body |
-
1983
- 1983-06-08 JP JP10313883A patent/JPS59229165A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53137462A (en) * | 1977-05-07 | 1978-11-30 | Matsushita Refrig Co | Manufacturing process of heat-insulating box |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59229165A (en) | 1984-12-22 |
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