JP2728318B2 - Manufacturing method of vacuum insulation box - Google Patents
Manufacturing method of vacuum insulation boxInfo
- Publication number
- JP2728318B2 JP2728318B2 JP3021881A JP2188191A JP2728318B2 JP 2728318 B2 JP2728318 B2 JP 2728318B2 JP 3021881 A JP3021881 A JP 3021881A JP 2188191 A JP2188191 A JP 2188191A JP 2728318 B2 JP2728318 B2 JP 2728318B2
- Authority
- JP
- Japan
- Prior art keywords
- box
- heat insulating
- vacuum
- vacuum insulation
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば、冷蔵庫や冷凍
庫に用いられる真空断熱箱体に関し、より詳しくは、そ
のような真空断熱箱体の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum insulation box used for, for example, a refrigerator or a freezer, and more particularly to a method for manufacturing such a vacuum insulation box.
【０００２】[0002]
【従来の技術】一般に、例えば、冷蔵庫や冷凍庫では、
庫内と庫外との間の断熱が、冷蔵能力や冷凍能力の向上
を図るために重要な要素である。このため、冷蔵庫等の
断熱性能を向上するために、図４および図５に示すよう
に、真空断熱パネル３，…，３の一面３ａを外箱１の内
面１ａに接着し、この外箱１を内箱２に組み込んで、外
箱１の内面１ａと内箱２の外面２ａとの間の空間に真空
断熱パネル３，…，３を配置する。その後、外箱１の内
面１ａと内箱２の外面２ａとの間の空間に、発泡断熱材
（例えば硬質ウレタンフォーム）４を注入している。2. Description of the Related Art Generally, for example, in a refrigerator or a freezer,
Insulation between the inside and the outside of the refrigerator is an important factor for improving the refrigeration capacity and the freezing capacity. Therefore, in order to improve the heat insulating performance of a refrigerator or the like, one surface 3a of the vacuum heat insulating panels 3,..., 3 is bonded to the inner surface 1a of the outer box 1 as shown in FIGS. Are assembled in the inner box 2, and the vacuum heat insulating panels 3,..., 3 are arranged in the space between the inner surface 1 a of the outer box 1 and the outer surface 2 a of the inner box 2. Thereafter, a foamed heat insulating material (for example, hard urethane foam) 4 is injected into a space between the inner surface 1a of the outer box 1 and the outer surface 2a of the inner box 2.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記真
空断熱パネル３の他面３ｂと内箱２の外面２ａとの間に
隙間ｇが設けられていて、この隙間ｇは狭いから、発泡
断熱材４の流れが悪くなるので、注入作業が困難であ
る。また、熱伝導率は、発泡断熱材４に比べて真空断熱
パネル３の方がはるかに低いため、上記隙間ｇに注入さ
れた発泡断熱材４は、断熱性能の向上にさほど寄与して
おらず、逆に、外箱１の内面１ａと内箱２の外面２ａと
の間の空間（断熱層）が厚くなり、内箱の容積が狭くな
る等の問題があった。However, a gap g is provided between the other surface 3b of the vacuum insulation panel 3 and the outer surface 2a of the inner box 2, and since the gap g is narrow, the foam insulation 4 Since the flow of the gas becomes worse, the injection operation is difficult. Further, since the thermal conductivity of the vacuum heat insulating panel 3 is much lower than that of the foam heat insulating material 4, the foam heat insulating material 4 injected into the gap g does not significantly contribute to the improvement of the heat insulating performance. Conversely, there is a problem that the space (heat insulating layer) between the inner surface 1a of the outer box 1 and the outer surface 2a of the inner box 2 becomes thicker, and the volume of the inner box becomes smaller.
【０００４】そこで、本発明の目的は、断熱箱体の容積
の増加と組付け作業性の向上を図ることにある。Accordingly, an object of the present invention is to increase the volume of the heat insulating box and improve the workability of assembling.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、外箱の内面と内箱の外面との間の空間に
真空断熱パネルを配置し、この真空断熱パネルの一面と
上記外箱の内面とを接着した真空断熱箱体の製造方法で
あって、上記外箱の少なくとも一部を構成する互いに独
立した複数の部分の内面それぞれに、真空断熱パネルの
一面を接着する工程と、接触したときに硬化が開始する
２液主剤型接着剤を、上記各真空断熱パネルの他面と上
記内箱の外面とに分別塗布する工程と、上記外箱の複数
の部分の内面に接着された上記各真空断熱パネルの上記
他面を、上記２液主剤型接着剤により、上記内箱の外面
に接着する工程とを備えたことを特徴としている。SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a vacuum insulation panel disposed in a space between an inner surface of an outer box and an outer surface of the inner box. A method for manufacturing a vacuum insulating box body in which an inner surface of the outer box is bonded, wherein one surface of a vacuum insulating panel is bonded to each of inner surfaces of a plurality of independent parts constituting at least a part of the outer box. And separately applying a two-component main-agent-type adhesive, which starts curing when contacted, to the other surface of each of the vacuum insulation panels and the outer surface of the inner box, and to the inner surface of a plurality of portions of the outer box. Bonding the other surface of each of the bonded vacuum insulation panels to the outer surface of the inner box with the two-component main agent type adhesive.
【０００６】[0006]
【作用】従来よりやや厚くして断熱性能を向上させた各
真空断熱パネルの一面を外箱の上記互いに独立した複数
の部分の各内面に接着し、他面を内箱の外面に接着す
る。これにより、真空断熱パネルの他面と内箱の外面と
の間に隙間がなくなるので、この隙間に発泡断熱材を注
入する必要がなくなり、注入作業が容易になる。また、
内箱の外面を真空断熱パネルの他面に接着しているか
ら、発泡断熱材発泡後の内箱の各面のがたつき、凹凸
（べこつき）がなく、商品価値が向上する。さらに、真
空断熱パネルは従来の隙間の発泡断熱材に相当するだけ
断熱性能を向上させれば良いので、やや厚くなるだけで
あり、しかも隙間が不要になるので、外箱と内箱との間
の空間を狭くでき、その分だけ内箱の容積が増加する。
さらにまた、真空断熱パネルの他面と内箱の外面とに２
液主剤型接着剤を分別塗布しているから、塗り置きがで
きるので接着作業性が良好になり、かつ、接触後に内箱
と真空断熱パネルの位置矯正もできる。One side of each vacuum insulation panel, which is slightly thicker than before and has improved heat insulation performance, is bonded to the inner surface of each of the plurality of independent portions of the outer box, and the other surface is bonded to the outer surface of the inner box. As a result, there is no gap between the other surface of the vacuum insulation panel and the outer surface of the inner box, so that it is not necessary to inject the foamed heat insulating material into this gap, and the injection operation is facilitated. Also,
Since the outer surface of the inner box is adhered to the other surface of the vacuum insulation panel, each surface of the inner box after foaming of the foamed heat insulating material has no rattling or unevenness (stickiness), and the commercial value is improved. Furthermore, the vacuum insulation panel only needs to improve the heat insulation performance equivalent to the conventional foam insulation material in the gap, so that it is only slightly thicker. Space can be reduced, and the volume of the inner box increases accordingly.
In addition, the other side of the vacuum insulation panel and the outer surface of the inner box
Since the liquid main agent type adhesive is separately applied, it is possible to apply the adhesive, so that the adhesive workability is improved, and the position of the inner box and the vacuum insulation panel can be corrected after the contact.
【０００７】[0007]
【実施例】以下、本発明を図示の実施例により詳細に説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments.
【０００８】図１及び図２に示すように、冷蔵庫等の断
熱箱体は、外箱１０と内箱１１とを備えている。この外
箱１０の内面１０ａと内箱１１の外面１１ａとの間に空
間が設けられ、この空間の上部、後部及び両側部に真空
断熱パネル１３をそれぞれ配置している。この各真空断
熱パネル１３は、例えば、熱伝導率の低い無機系の粉末
からなるスペーサ材を、通気性の良いクラフト紙等の中
袋に充填した後、この中袋とともにスペーサ材を真空保
持性の良い外包材で真空密封して構成された公知のもの
である。As shown in FIGS. 1 and 2, a heat insulating box such as a refrigerator has an outer box 10 and an inner box 11. A space is provided between the inner surface 10a of the outer box 10 and the outer surface 11a of the inner box 11, and vacuum insulation panels 13 are arranged at the upper, rear, and both sides of the space. Each of the vacuum insulation panels 13 is formed, for example, by filling a spacer material made of an inorganic powder having a low thermal conductivity into an inner bag having good air permeability, such as kraft paper, and then holding the spacer material together with the inner bag in a vacuum holding property. It is a well-known thing which was constituted by vacuum-sealing with a good outer packaging material.
【０００９】この真空断熱パネル１３の厚みｔは、図４
の従来の真空断熱パネル３の厚みｔ１よりやや厚くす
る。すなわち、従来では、真空断熱パネル３の他面３ｂ
と内箱２の外面２ａとの間に隙間ｇを設けて、この隙間
ｇに発泡断熱材４を注入していた。本案では、この隙間
ｇ及びこの隙間ｇの発泡断熱材をなくするので、断熱性
能を維持するために真空断熱パネル１３の厚みｔを従来
の厚みｔ１よりやや厚くするのである。ただし、熱伝導
率は、発泡断熱材４に比べて真空断熱パネル１３の方が
はるかに低いため、厚みｔの増加はごく僅かでよい。The thickness t of the vacuum insulation panel 13 is shown in FIG.
Is slightly thicker than the thickness t1 of the conventional vacuum heat insulating panel 3. That is, conventionally, the other surface 3b of the vacuum insulation panel 3
A gap g is provided between the inner box 2 and the outer surface 2a of the inner box 2, and the foamed heat insulating material 4 is injected into the gap g. In the present invention, since the gap g and the foamed heat insulating material in the gap g are eliminated, the thickness t of the vacuum insulation panel 13 is made slightly larger than the conventional thickness t1 in order to maintain the heat insulation performance. However, since the thermal conductivity of the vacuum heat insulating panel 13 is much lower than that of the foam heat insulating material 4, the increase in the thickness t may be very small.
【００１０】この真空断熱パネル１３の一面１３ａは、
上記外箱１０の内面１０ａに接着し、他面１３ｂは、内
箱１１の外面１１ａに接着する。この接着の順序は、図
３に示すように、真空断熱パネル１３の一面１３ａを外
箱１０の内面１０ａに両面接着テープ等で予め接着して
おき、その後、内箱１１の外面１１ａに真空断熱パネル
１３の他面１３ｂを接着する。この真空断熱パネル１３
の接着に際して、両面接着テープを用いると、接着後に
内箱１１と真空断熱パネル１３の位置矯正が不可能であ
る。また、常温硬化型の接着剤を用いると、塗布から接
着までの可使時間が制限され、塗り置きができないので
接着作業性が悪くなる。One surface 13a of the vacuum insulation panel 13 is
The other surface 13b is bonded to the outer surface 11a of the inner box 11 while the other surface 13b is bonded to the inner surface 10a of the outer box 10. As shown in FIG. 3, the bonding order is such that one surface 13 a of the vacuum heat insulating panel 13 is bonded to the inner surface 10 a of the outer box 10 in advance with a double-sided adhesive tape or the like, and then the vacuum insulating panel 13 is bonded to the outer surface 11 a of the inner box 11. The other surface 13b of the panel 13 is bonded. This vacuum insulation panel 13
When the double-sided adhesive tape is used for bonding, it is impossible to correct the position of the inner box 11 and the vacuum insulation panel 13 after the bonding. In addition, when a room-temperature-curable adhesive is used, the usable time from application to bonding is limited, and application is not performed, so that the bonding workability is deteriorated.
【００１１】そこで、２種類の変性アクリルを主成分と
した２液主剤型接着剤（例えば、商品名 コニシボンド
ＡＧ３００）を、真空断熱パネル１３の他面１３ｂと内
箱１１の外面１１ａとに分別塗布する。この接着剤は、
分別塗布された２液が接触したときに硬化が開始すると
いう特性を有する。Therefore, a two-component main agent type adhesive (for example, Konishi Bond AG300) having two types of modified acrylic as main components is separately applied to the other surface 13b of the vacuum heat insulating panel 13 and the outer surface 11a of the inner box 11. I do. This adhesive is
It has the property that curing starts when two separately applied liquids come into contact.
【００１２】上記外箱１０と内箱１１との間の空間に真
空断熱パネル１３を接着して組み込んだ後、真空断熱パ
ネル１３のない空間に、発泡断熱材１４を注入する。After the vacuum heat insulating panel 13 is bonded into the space between the outer case 10 and the inner case 11 and assembled, a foam heat insulating material 14 is injected into the space without the vacuum heat insulating panel 13.
【００１３】上記構成によれば、真空断熱パネル１３の
一面１３ａを外箱１０の内面１０ａに、他面１３ｂを内
箱１１の外面１１ａに接着するから、真空断熱パネル１
３の他面１３ｂと内箱１１の外面１１ａとの間に従来の
ような隙間ｇがなくなるので、この隙間ｇに発泡断熱材
１４を注入する必要がなくなる。したがって、発泡断熱
材１４の注入作業が容易になる。According to the above configuration, one surface 13a of the vacuum heat insulating panel 13 is bonded to the inner surface 10a of the outer case 10 and the other surface 13b is bonded to the outer surface 11a of the inner case 11.
Since there is no gap g between the other surface 13b of the third box 13 and the outer surface 11a of the inner box 11 as in the prior art, there is no need to inject the foamed heat insulating material 14 into the gap g. Therefore, the work of injecting the foam insulation 14 becomes easy.
【００１４】また、内箱１１の外面１１ａは真空断熱パ
ネル１３の他面１３ｂに接着されているので、発泡断熱
材の発泡後の内箱１１の各面のがたつき、凹凸がなく、
商品価値が向上する。Further, since the outer surface 11a of the inner box 11 is adhered to the other surface 13b of the vacuum heat insulating panel 13, each surface of the inner box 11 after foaming of the foamed heat insulating material has no backlash and no irregularities.
Product value is improved.
【００１５】さらに、真空断熱パネル１３は、従来の隙
間ｇに注入される発泡断熱材に相当するだけ断熱性能を
向上させるだけでよいから、従来よりやや厚くするだけ
でよく、しかも隙間ｇが不要になるので、外箱１０と内
箱１１との間の空間を狭くでき、その分だけ内箱１１の
容積を増加させることができる。Further, since the vacuum heat insulating panel 13 only needs to improve the heat insulating performance corresponding to the conventional foam heat insulating material injected into the gap g, it need only be slightly thicker than the conventional one, and the gap g is unnecessary. Therefore, the space between the outer box 10 and the inner box 11 can be reduced, and the volume of the inner box 11 can be increased accordingly.
【００１６】さらにまた、真空断熱パネル１３の他面１
３ｂと内箱１１の外面１１ａとに、２液主剤型接着剤を
分別塗布することにより、真空断熱パネル１３の他面１
３ｂと内箱１１の外面１１ａとに接着剤を塗り置きで
き、接着作業性が向上する。しかも、２種の接着剤が接
触したときに硬化が開始するので、接触後でも内箱１１
と真空断熱パネル１３の位置矯正が可能になる。Further, the other surface 1 of the vacuum insulation panel 13
3b and the outer surface 11a of the inner box 11 are separately coated with a two-component main agent type adhesive to separate the other surface 1 of the vacuum heat insulating panel 13
An adhesive can be applied to the outer surface 3a of the inner box 11 and the outer surface 3b of the inner box 11 to improve the bonding workability. In addition, since the curing starts when the two types of adhesives come into contact with each other, the inner box 11 can be made even after the contact.
And the position of the vacuum insulation panel 13 can be corrected.
【００１７】[0017]
【発明の効果】以上の説明より明らかなように、本発明
の真空断熱箱体の製造方法によれば、各真空断熱パネル
の一面を外箱の互いに独立した複数の部分の内面に接着
し、他面を内箱の外面に接着することにより、真空断熱
パネルの他面と内箱の外面との間の隙間がなくなるの
で、この隙間に発泡断熱材を注入する必要がなくなり、
注入作業が容易になる。また、内箱の外面を上記各真空
断熱パネルの他面に接着するので、発泡断熱材発泡後の
内箱の各面のがたつき、凹凸が防止でき、商品価値が向
上する。さらに、真空断熱パネルは上記隙間の発泡断熱
材に相当するだけ断熱性能を向上させるために、従来よ
りやや厚くするだけでよく、しかも隙間が不要になるの
で、外箱と内箱との間の空間を狭くでき、その分だけ内
箱の容量を増加させることができる。さらにまた、真空
断熱パネルの他面と内箱の外面とに２液主剤型接着剤を
分別塗布するから、塗り置きができるので接着作業性が
良くなり、しかも接触後に内箱と真空断熱パネルの位置
矯正と同時に外箱の上記複数の部分間の位置矯正もでき
るようになる。As is apparent from the above description, according to the method for manufacturing a vacuum heat insulating box of the present invention, one surface of each vacuum heat insulating panel is bonded to the inner surface of a plurality of independent parts of the outer box. By bonding the other surface to the outer surface of the inner box, there is no gap between the other surface of the vacuum insulation panel and the outer surface of the inner box.Therefore, there is no need to inject foam insulation into this gap.
Injection work becomes easier. Further, since the outer surface of the inner box is adhered to the other surface of each of the above vacuum insulation panels, it is possible to prevent rattling and unevenness of each surface of the inner box after the foam insulation material is foamed, thereby improving the commercial value. Furthermore, the vacuum insulation panel only needs to be slightly thicker than before in order to improve the heat insulation performance corresponding to the foam insulation material in the above-mentioned gap, and since no gap is required, the space between the outer box and the inner box is not required. The space can be reduced, and the capacity of the inner box can be increased accordingly. Furthermore, since the two-component main adhesive is separately applied to the other surface of the vacuum insulation panel and the outer surface of the inner box, the adhesive can be applied and the workability of the adhesion can be improved. The position between the plurality of portions of the outer box can be corrected at the same time as the position is corrected.
【図１】 本発明に係る方法によって製造された真空断
熱箱体の平面断面図FIG. 1 is a cross-sectional plan view of a vacuum insulated box manufactured by a method according to the present invention.
【図２】 図１の真空断熱箱体の正面断面図FIG. 2 is a front sectional view of the vacuum insulated box of FIG. 1;
【図３】 図１の真空断熱箱体の分解正面断面図FIG. 3 is an exploded front sectional view of the vacuum insulated box of FIG. 1;
【図４】 従来の真空断熱箱体の平面断面図FIG. 4 is a cross-sectional plan view of a conventional vacuum insulation box.
【図５】 図５の真空断熱箱体の正面断面図FIG. 5 is a front sectional view of the vacuum insulated box shown in FIG. 5;
１０…外箱、１０ａ…内面、１１…内箱、１１ａ…外
面、１３…真空断熱パネル、１３ａ…一面、１３ｂ…他
面。Reference numeral 10: outer box, 10a: inner surface, 11: inner box, 11a: outer surface, 13: vacuum insulation panel, 13a: one surface, 13b: other surface.
Claims (1)
真空断熱パネルを配置し、この真空断熱パネルの一面と
上記外箱の内面とを接着した真空断熱箱体の製造方法で
あって、 上記外箱の少なくとも一部を構成する互いに独立した複
数の部分の内面それぞれに、真空断熱パネルの一面を接
着する工程と、 接触したときに硬化が開始する２液主剤型接着剤を、上
記各真空断熱パネルの他面と上記内箱の外面とに分別塗
布する工程と、 上記外箱の複数の部分の内面に接着された上記各真空断
熱パネルの上記他面を、上記２液主剤型接着剤により、
上記内箱の外面に接着する工程とを備えたことを特徴と
する真空断熱箱体の製造方法。1. A method of manufacturing a vacuum heat insulating box in which a vacuum heat insulating panel is disposed in a space between an inner surface of an outer case and an outer surface of the inner case, and one surface of the vacuum heat insulating panel is bonded to the inner surface of the outer case. A step of adhering one surface of a vacuum heat insulating panel to each of inner surfaces of a plurality of mutually independent parts constituting at least a part of the outer box; Separately applying the other surface of each of the vacuum insulation panels to the outer surface of the inner box; and attaching the other surface of each of the vacuum insulation panels adhered to the inner surface of a plurality of portions of the outer box to the second surface. With liquid base type adhesive,
Adhering to the outer surface of the inner box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3021881A JP2728318B2 (en) | 1991-02-15 | 1991-02-15 | Manufacturing method of vacuum insulation box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3021881A JP2728318B2 (en) | 1991-02-15 | 1991-02-15 | Manufacturing method of vacuum insulation box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04260780A JPH04260780A (en) | 1992-09-16 |
| JP2728318B2 true JP2728318B2 (en) | 1998-03-18 |
Family
ID=12067464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3021881A Expired - Fee Related JP2728318B2 (en) | 1991-02-15 | 1991-02-15 | Manufacturing method of vacuum insulation box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2728318B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01110583A (en) * | 1987-10-22 | 1989-04-27 | Olympus Optical Co Ltd | Bonding method using two-pack type adhesive |
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| WO2013084647A1 (en) | 2011-12-06 | 2013-06-13 | 株式会社 東芝 | Insulated cabinet |
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