JPS61195261A - Manufacture of heat-insulating panel - Google Patents

Manufacture of heat-insulating panel

Info

Publication number
JPS61195261A
JPS61195261A JP3507285A JP3507285A JPS61195261A JP S61195261 A JPS61195261 A JP S61195261A JP 3507285 A JP3507285 A JP 3507285A JP 3507285 A JP3507285 A JP 3507285A JP S61195261 A JPS61195261 A JP S61195261A
Authority
JP
Japan
Prior art keywords
outer shell
space
vacuum
vacuum insulation
insulation 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.)
Pending
Application number
JP3507285A
Other languages
Japanese (ja)
Inventor
洋 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP3507285A priority Critical patent/JPS61195261A/en
Publication of JPS61195261A publication Critical patent/JPS61195261A/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、F!iU又は冷蔵庫の断熱壁体を形成する場
合に好適する断熱パネルの製造方法に関する。
[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is based on F! The present invention relates to a method of manufacturing a heat insulating panel suitable for forming a heat insulating wall of an iU or a refrigerator.

〔発明の技術的背景〕[Technical background of the invention]

従来、例えば冷蔵庫の断熱壁にウレタンフオームと併用
して真空断熱パネルを使用しているが、この真空断熱パ
ネルは金属蒸着加工を施した熱可塑性樹脂フィルムの周
縁部を溶着することによシ袋状に形成された外殻と、こ
の外殻内部に充填された轡脂の粉状体或は粒状体より成
る充填物とから構成されるものであり、外殻の内部は、
これを袋拭に形成する荊の段階で真空引きを行なうこと
によって真空状態になされている。
Conventionally, vacuum insulation panels have been used in conjunction with urethane foam for the insulation walls of refrigerators, for example, but these vacuum insulation panels are made by welding the periphery of a thermoplastic resin film treated with metal vapor deposition. It is composed of an outer shell formed in the shape of a shape, and a filling made of powdered or granular fat filled inside the outer shell, and the inside of the outer shell is
A vacuum is created by pulling a vacuum at the stage of forming this into a cloth.

〔背景技術の問題点〕[Problems with background technology]

ところで、この種の真空断熱パネルを例えば冷蔵庫の断
熱壁に適用する場合には、これをウレタンフオームよ構
成る断熱層と併用することが行なわれている。そして、
この場合には、真空断熱パネルの断熱層6rが極低温下
においても一定していルコト、並びにウレタンフオーム
にあっては極低温状態で内部の賎留発泡剤が凝縮液化し
て断熱性能が低下するという事情があるため、真空断熱
パネルを断熱壁の内側(低温側)に配置することが考え
られている。しかしながら、前記従来構成の真空断熱パ
ネルでは、外殻の表面形状が平面状に限定されるため、
冷R庫の断熱壁内側をζ使用する場合には、真空断熱パ
ネルのさらに内側に位置した内箱が有する棚等支持用の
凸部部分が空洞状態のままになシ、このため、その部分
の強度低下を招き、結果的にこれを補強する必要があっ
て全体の構造が複雑化する欠点があった。かといって、
真空断熱パネルを断熱壁の外側に配置し且つ内側にウレ
タンフオームによる断熱層を配置したのでは、前述した
極低温下におけるウレタンフオームの断熱性能の低下現
象に起因して全体の断熱性能が低下する不具合を招く。
By the way, when this type of vacuum insulation panel is applied to a heat insulation wall of a refrigerator, for example, it is used in combination with a heat insulation layer made of urethane foam. and,
In this case, the insulation layer 6r of the vacuum insulation panel remains constant even at extremely low temperatures, and in the case of urethane foam, the internal foaming agent condenses and liquefies at extremely low temperatures, resulting in a decrease in insulation performance. For this reason, it is being considered to place vacuum insulation panels inside the insulation wall (on the low-temperature side). However, in the vacuum insulation panel of the conventional configuration, the surface shape of the outer shell is limited to a planar shape.
When using the inside of the insulation wall of a cold R refrigerator, the convex part of the inner box located further inside the vacuum insulation panel for supporting shelves, etc. will not remain in a hollow state. This leads to a decrease in the strength of the structure, which has the disadvantage of requiring reinforcement, which complicates the overall structure. However,
If a vacuum insulation panel is placed on the outside of the insulation wall and a heat insulation layer made of urethane foam is placed on the inside, the overall insulation performance will decrease due to the aforementioned phenomenon in which the insulation performance of urethane foam decreases at extremely low temperatures. cause problems.

〔発明の目的〕[Purpose of the invention]

本発明は上記の点に鑑みてなされたもので、その目的は
、外殻の形状を貯蔵室に合わせて自由に形成でき、以て
断熱壁の内側(低温側)に配置して全体の断熱性能の向
上を図った場合でも全体の構造が複雑化することを抑制
し得る断熱パネルの製造方法を提供するにある。
The present invention has been made in view of the above points, and its purpose is to allow the shape of the outer shell to be freely formed to suit the storage room, and to place it inside the heat insulating wall (on the low temperature side) to improve the overall heat insulation. It is an object of the present invention to provide a method of manufacturing a heat insulating panel that can prevent the overall structure from becoming complicated even when performance is improved.

〔発明の概要〕[Summary of the invention]

本発明は、一方が貯蔵室に即した所定形状をなす第1の
板状体及び第2の板、状体を重ね合わせてその周囲を連
結することにょシ両者間に空間部を形成すると共に前記
空間部に粉状体或は粒状体よ9成る充填物を充填する工
程と、前記空間部内を真空引き若しくはその空間部内に
低沸点且つ低熱伝導性のガスを封入する工程とを順次実
行した後に、前記空間部を気密に封止する工程を行なう
ことにより、これによって外殻の形状を自由に設定でき
るようlζしたものである。
The present invention involves forming a space between a first plate-like body and a second plate-like body, one of which has a predetermined shape suitable for a storage chamber, by overlapping the bodies and connecting their peripheries. A step of filling the space with a filler made of powder or granules, and a step of evacuating the space or filling the space with a gas having a low boiling point and low thermal conductivity were performed sequentially. Later, by performing a step of hermetically sealing the space, the shape of the outer shell can be freely set.

〔発明の実施例〕[Embodiments of the invention]

以下本発明の第1の実施例につき第1図乃至第6図を参
照して説明する。
A first embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

第2図において、1は例えば冷蔵庫の断熱箱で、これは
外箱2及び後述のような真空断熱パネル6を左、右両側
面に上、下に4枚貼シ付けた内箱4の間にウレタンフオ
ーム5を発泡充填した断熱壁6を有し、図示しないがそ
の内部の貯蔵室Aが冷凍室及び冷蔵室に区分される。尚
、内箱4の側面には図示しない棚を支持するための凸部
4aが膨出形成されている。さて、真空断熱パネル6は
第1図に示すように、全体として略矩形状をなし、且つ
内面に前記凸部4aの裏側空洞部に嵌シ込む突条部7を
有した形状に形成されておシ、その外殻8の内部には粉
状体或は粒状体よ9成る充填物9が収容されている。ま
た、斯かる真空断熱パネル3は、後述する工程を経るこ
とによって外殻8内が真空状態に保持されておシ、以て
十分なる断熱効果を発揮するようIζ構成されている。
In Fig. 2, 1 is a heat insulating box for a refrigerator, for example, which is between an outer box 2 and an inner box 4 with four vacuum heat insulating panels 6 as described below pasted on both left and right sides at the top and bottom. It has a heat insulating wall 6 filled with foamed urethane foam 5, and a storage chamber A therein (not shown) is divided into a freezing room and a refrigerator room. Incidentally, a protrusion 4a is formed on the side surface of the inner box 4 to support a shelf (not shown). Now, as shown in FIG. 1, the vacuum insulation panel 6 has a substantially rectangular shape as a whole and has a protrusion 7 on the inner surface that fits into the cavity on the back side of the convex part 4a. Inside the outer shell 8, a filling 9 made of powder or granules is housed. Further, such a vacuum insulation panel 3 is configured so that the inside of the outer shell 8 is maintained in a vacuum state through the steps described below, thereby exhibiting a sufficient insulation effect.

而して、上記真空断熱パネル3は第3図に示す各工程を
経て製造されるものであり、以下その製造方法について
説明する。
The vacuum insulation panel 3 is manufactured through the steps shown in FIG. 3, and the manufacturing method will be described below.

即ち、第3図(a)に示す連結工程では、第1の板状体
である金属蒸着フィルム1oと、前記貯蔵室Aひいては
前記内箱4に即した形状の第2の板状体である金属蒸着
多層シート11とを重ね合わせその周囲四辺部のうち三
辺部を溶着して両者間に空間部(第3図(b)参照)を
形成する。ここで、金属蒸着多層シート11は少くとも
1層は金属または金属蒸着シートから成る多層シートで
、熱酸、形することによりn述した形状に形成されてい
る。
That is, in the connection step shown in FIG. 3(a), the first plate-shaped body, which is the metallized film 1o, and the second plate-shaped body, which has a shape that conforms to the storage chamber A and thus the inner box 4, are connected. The metal vapor-deposited multilayer sheet 11 is stacked on top of the other, and three of the four peripheral sides are welded to form a space between them (see FIG. 3(b)). Here, the metal vapor-deposited multilayer sheet 11 is a multilayer sheet in which at least one layer is made of metal or a metal vapor-deposited sheet, and is formed into the shape described above by shaping with hot acid.

斯かる連結工程に引続く材料充填工程(第6図(b)参
照)では、粉状体或は粉状体よ9成る充填物9を外殻8
のまだ溶着されていない開口部8aから外殻8内の空間
部へ収納する。そして、第3図(C)に示す加圧及び真
空引き工程では、充填物9を収納した外殻8を下型12
と固定よ型13及び可動上型14からなる上型15との
間に挾み、加圧しながら外殻8内の空気を開口部8aを
介して外部へ排出し、以て外殻8内の空間部の真空引き
を行なう。尚、この場合、外殻8の突条部7の形状を崩
さないようにするため、外殻8の平面部を可動上型14
によシ加圧する。この後、第3図(d)に示す溶着封止
工程を実行して、外殻8の開口部8aを溶着し、外68
内の空間部を気密に封止する。
In the material filling step (see FIG. 6(b)) that follows the connecting step, the powder or the filling 9 made of the powder is packed into the outer shell 8.
It is stored in the space inside the outer shell 8 through the opening 8a which has not yet been welded. Then, in the pressurizing and vacuuming process shown in FIG.
and an upper mold 15 consisting of a fixed mold 13 and a movable upper mold 14, and while pressurizing the air inside the outer shell 8 is discharged to the outside through the opening 8a. Evacuate the space. In this case, in order to keep the shape of the protrusion 7 of the outer shell 8 intact, the flat part of the outer shell 8 is moved by the movable upper mold 14.
Apply more pressure. Thereafter, the welding and sealing process shown in FIG. 3(d) is performed to weld the opening 8a of the outer shell 8 and the outer shell 8.
Airtightly seal the internal space.

これによって真空断熱パネル3が形成される。The vacuum insulation panel 3 is thus formed.

このような本実施例によれば次のような効果を得ること
ができる。即ち、金属蒸着フィルム10と内箱4に即し
た形状の金属蒸着多層シート11とを溶着して外殻8を
形成、したので、内箱4が有する棚等支持用の凸部4a
の裏側空洞部に嵌合させ得る突条部7を有した真空断熱
パネル6を形成することができる。これにょシ、空洞状
態にある上記凸部4aを別部材を用いずに補強でき、結
果的に全体の構造を簡単化できる。勿論、真空断熱パネ
ル6を断熱壁6の内側(低温側)に設けたので、ウレタ
ンフオーム5の熱伝導率の温度特性(温度が低くなるに
従って熱伝導率も小さくなるが。
According to this embodiment, the following effects can be obtained. That is, since the outer shell 8 is formed by welding the metallized film 10 and the metallized multilayer sheet 11 having a shape that matches the inner box 4, the protrusion 4a of the inner box 4 for supporting shelves, etc.
It is possible to form a vacuum insulation panel 6 having a protrusion 7 that can be fitted into the cavity on the back side of the vacuum insulation panel 6. In this way, the hollow convex portion 4a can be reinforced without using a separate member, and the overall structure can be simplified as a result. Of course, since the vacuum insulation panel 6 was provided inside the insulation wall 6 (on the low temperature side), the temperature characteristics of the thermal conductivity of the urethane foam 5 (the thermal conductivity decreases as the temperature decreases).

温度がウレタンフオーム5の発泡中の発泡剤の液化湿度
以下になると、熱伝導率は一定値のままになる即ち断熱
性能が低下する)と真空断熱パネル3の熱伝導率の温度
特性(温度が低くなるに従って熱伝導率も小さくなる即
ち断熱性能が低下しない)とを有効に利用し得て断熱壁
6全体の断熱性能を向上させることができる。また、真
空断熱パネル6を断熱壁6の低温側に設けたので、吸湿
性ノ高いウレタンフオーム5を低温側に設けなくて済み
、それだけ水分の吸収を減少し得ウレタンフオーム5の
断熱性経時劣化を低減できる。しかも、断熱壁6の外箱
2側に接する部分にはウレタンフオーム5が充填されて
いるので、放熱パイプは従来通シ配設できる。更に、金
属蒸着フィルム10と金属蒸着多層シート11とを溶着
して外殻8を形成したので、内箱4の真空断熱パネル3
を貼シ付けた部分がウレタン発泡時に熱変形したシ、ウ
レタン収縮によシ割れたシ、へこんだシすることを防止
できる。
When the temperature drops below the liquefied humidity of the foaming agent during foaming of the urethane foam 5, the thermal conductivity remains at a constant value, that is, the insulation performance decreases) and the temperature characteristics of the thermal conductivity of the vacuum insulation panel 3 (when the temperature As the thermal conductivity decreases, the thermal conductivity also decreases, that is, the thermal insulation performance does not decrease. In addition, since the vacuum insulation panel 6 is provided on the low temperature side of the insulation wall 6, there is no need to provide the highly hygroscopic urethane foam 5 on the low temperature side, which can reduce moisture absorption and deteriorate the insulation properties of the urethane foam 5 over time. can be reduced. Moreover, since the portion of the heat insulating wall 6 that contacts the outer box 2 side is filled with the urethane foam 5, the heat radiation pipe can be disposed in a conventional manner. Furthermore, since the outer shell 8 was formed by welding the metallized film 10 and the metallized multilayer sheet 11, the vacuum insulation panel 3 of the inner box 4
It can prevent the part to which the adhesive is pasted from being thermally deformed during urethane foaming, or from cracking or denting due to urethane shrinkage.

尚、上記実施例において、真空断熱パネル3を内箱4の
一部として構成しても良く、この場合に ゛は真空断熱
パネル6の突条部7に棚を直接載置する。
In the above embodiment, the vacuum insulation panel 3 may be constructed as a part of the inner box 4, and in this case, a shelf is placed directly on the protrusion 7 of the vacuum insulation panel 6.

第4図は本発明の第2の実施例を示すものであシ、以下
この実施例による真空断熱パネルの製造方法について説
明する。第4図(a)にて示す材料充填工程では、第1
の板状体である矩形状をなす金属板16と、第2の板状
体であるプレス成形等によシ内箱4に即した形伏に形成
された全体として矩形状をなす金属板17との間に、粉
状体或は粒状体よ構成る充填物18を充填する。尚、金
属板16の中央部には通気孔19aを有する略円筒状の
筒部19が外側に向けて突設されておシ、この筒部19
の通気路にフィルター20が取着されている。斯かる材
料充填工程に引続く溶接工程(第4図(h) J照)で
は、金属板16及び金属板17の周囲四辺部を溶接して
外殻21を形成し、この外殻21内の空間部に充填物1
8が密封された状態をなす。この後には、第4図(C)
に示す真空引き工程を実行する。この真空引き工程では
、外殻21内部の空気を通気孔19aを介して外部へ排
出し、以て外殻21内の空間部の真空引きを行なう。尚
、この場合、外殻21を加熱しながら真空引きを行なう
とよシ効率良く短時間で真空引きできる。そして、真空
引き工程を終了した後に第4図(d)に示す溶接封止工
程を実行して、節部19の通気孔19aを溶接によシ封
止し、以て外殻21内の空間部を真空状態に保持する。
FIG. 4 shows a second embodiment of the present invention, and a method for manufacturing a vacuum insulation panel according to this embodiment will be explained below. In the material filling process shown in FIG. 4(a), the first
a rectangular metal plate 16 that is a plate-like body; and a metal plate 17 that is a second plate-like body that is rectangular as a whole and is formed into a shape that conforms to the inner box 4 by press molding or the like. A filler 18 made of powder or granules is filled between the two. Incidentally, a substantially cylindrical tube portion 19 having a ventilation hole 19a is provided in the center of the metal plate 16 and protrudes outward.
A filter 20 is attached to the air passage. In the welding process (see Fig. 4 (h) J) subsequent to the material filling process, the four peripheral sides of the metal plates 16 and 17 are welded to form an outer shell 21, and the inside of this outer shell 21 is Filler 1 in the space
8 is in a sealed state. After this, Figure 4 (C)
Execute the vacuuming process shown in . In this evacuation step, the air inside the outer shell 21 is exhausted to the outside through the vent hole 19a, thereby evacuating the space inside the outer shell 21. In this case, if the vacuum is drawn while heating the outer shell 21, the vacuum can be drawn more efficiently and in a short time. After completing the evacuation process, the welding sealing process shown in FIG. Keep the section under vacuum.

このような第2の実施例においても、第1の実施例と同
様な作用効果を奏するが、特に、金属板16.17を溶
接して外殻21を構成したので、真空状態の保持能力に
優れた真空断熱パネルを製造することができる。
The second embodiment also has the same effects as the first embodiment, but in particular, since the outer shell 21 is constructed by welding the metal plates 16 and 17, the ability to maintain a vacuum state is improved. Excellent vacuum insulation panels can be manufactured.

尚、上記実施例において、・:、金属板16に通気孔1
9aを有する節部19を設けたが、代わシに金属板16
.17の溶接時に一辺部を残してこれを真空引き用の開
口部としても良い。また、充填物18を収納してから金
属板16.17を溶接したが、代わりに金属板16.1
7を先に溶接してから充填物18を通気孔19aより外
殻21内へ収納しその後フィルター20を取着しても良
い。
In the above embodiment, the ventilation hole 1 is provided in the metal plate 16.
Although the joint portion 19 having the shape 9a is provided, a metal plate 16 is provided instead.
.. When welding 17, one side may be left and this may be used as an opening for vacuuming. Also, although the metal plate 16.17 was welded after storing the filling 18, the metal plate 16.1 was instead welded.
7 may be welded first, then the filler 18 may be housed in the outer shell 21 through the ventilation hole 19a, and then the filter 20 may be attached.

また、上記第1及び第2の実施例において、真空断熱パ
ネルを断熱壁6の側面に設けたが、加えて断熱壁6の天
井面、背面、底面に設けるようにしても良く、更に、側
面全体に一体の真空断熱パネルを設けても良い。
Furthermore, in the first and second embodiments described above, the vacuum insulation panel was provided on the side surface of the insulation wall 6, but it may be additionally provided on the ceiling surface, back surface, or bottom surface of the insulation wall 6. An integral vacuum insulation panel may be provided throughout.

その他、本発明は上記し且つ図面に示した実施例に限定
されるものではなく、ウレタンフオームを併用せずに真
空断熱パネルだけで断熱壁を形成しても良く、また、冷
蔵庫の断熱壁に適用したが、代わりに断熱扉に適用して
も良く、更に、真空引きする代わりに、低沸点で且つ低
熱伝導性のガス(例えばキセノンガス)を封入しても良
く、要旨を逸脱しない範囲内で種々変形して実施するこ
とができる。
In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and the insulation wall may be formed only with a vacuum insulation panel without using urethane foam, and the insulation wall of a refrigerator may be used. However, it may be applied to an insulated door instead.Furthermore, instead of vacuuming, a gas with a low boiling point and low thermal conductivity (for example, xenon gas) may be filled, within the scope of the gist. It can be implemented with various modifications.

〔発明の効果〕〔Effect of the invention〕

本発明は以上の説明から明らかなように、断熱パネルを
製造する場合に、外殻の形状を貯蔵室に合わせて自由に
形成でき、以て断熱壁の内側(低温側)に配置して全体
の断熱性能の向上を図った場合でも全体の構造が複雑化
することを抑制し得る等の効果を奏する。
As is clear from the above description, when manufacturing a heat insulating panel, the present invention allows the shape of the outer shell to be freely formed to match the storage room. This has the effect of suppressing the complexity of the overall structure even when the heat insulation performance of the structure is improved.

【図面の簡単な説明】[Brief explanation of drawings]

第1図乃至第3図は本発明の第1の実施列を示すもので
、第1図は真空断熱パネルを一部断面にして示す斜視図
、第2図は冷蔵庫の断熱箱の縦断正面図、第3図は真空
断熱パネルの製造工程を示す縦断面図であシ、第4図は
本発明の第2の実施例を示す第6図相当図である。 図面中、1は断熱箱、3は真空断熱パネル、7は突条部
、8は外殻、9は充填物(粉状体域は粒状体)、10は
金属蒸着フィルム(第1の板状体)、11は金属蒸着多
層シート(M2の板状体)、16は金属板(第1の板状
体)、17は金属板(第2の板状体)、18は充填物(
粉状体或は粒状体)、21は外殻、Aは貯蔵室を示す。
Figures 1 to 3 show a first embodiment of the present invention, with Figure 1 being a perspective view of a vacuum insulation panel partially cut away, and Figure 2 being a longitudinal sectional front view of a refrigerator insulation box. , FIG. 3 is a vertical sectional view showing the manufacturing process of a vacuum insulation panel, and FIG. 4 is a view corresponding to FIG. 6 showing a second embodiment of the present invention. In the drawings, 1 is a heat insulating box, 3 is a vacuum heat insulating panel, 7 is a protrusion, 8 is an outer shell, 9 is a filler (the powder region is a granular material), and 10 is a metal-deposited film (the first plate-shaped 11 is a metal vapor-deposited multilayer sheet (M2 plate-like body), 16 is a metal plate (first plate-like body), 17 is a metal plate (second plate-like body), 18 is a filler (
(powder or granule), 21 is the outer shell, and A is the storage chamber.

Claims (1)

【特許請求の範囲】[Claims] 1、一方が貯蔵室に即した所定形状をなす第1の板状体
及び第2の板状体を重ね合わせてその周囲を連結するこ
とにより両者間に空間部を形成すると共に、前記空間部
に粉状体或は粒状体より成る充填物を充填する工程と、
前記空間部内を真空引き若しくはその空間部内に低沸点
且つ低熱伝導性のガスを封入する工程と、前記空間部を
気密に封止する工程とを経て成る断熱パネルの製造方法
1. A first plate-like body and a second plate-like body, one of which has a predetermined shape suitable for a storage room, are overlapped and their peripheries are connected to form a space between them, and the space is a step of filling with a filler made of powder or granules;
A method for producing a heat insulating panel comprising the steps of: evacuating the space or filling the space with a gas having a low boiling point and low thermal conductivity; and hermetically sealing the space.
JP3507285A 1985-02-22 1985-02-22 Manufacture of heat-insulating panel Pending JPS61195261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3507285A JPS61195261A (en) 1985-02-22 1985-02-22 Manufacture of heat-insulating panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3507285A JPS61195261A (en) 1985-02-22 1985-02-22 Manufacture of heat-insulating panel

Publications (1)

Publication Number Publication Date
JPS61195261A true JPS61195261A (en) 1986-08-29

Family

ID=12431792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3507285A Pending JPS61195261A (en) 1985-02-22 1985-02-22 Manufacture of heat-insulating panel

Country Status (1)

Country Link
JP (1) JPS61195261A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017155865A (en) * 2016-03-02 2017-09-07 パナソニックIpマネジメント株式会社 Vacuum heat insulating body, heat insulating device comprising the same, and manufacturing method of vacuum heat insulating body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208572A (en) * 1983-03-30 1983-12-05 株式会社日立製作所 Electric refrigerator
JPS5952184A (en) * 1983-08-10 1984-03-26 株式会社日立製作所 Door structure of refrigerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208572A (en) * 1983-03-30 1983-12-05 株式会社日立製作所 Electric refrigerator
JPS5952184A (en) * 1983-08-10 1984-03-26 株式会社日立製作所 Door structure of refrigerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017155865A (en) * 2016-03-02 2017-09-07 パナソニックIpマネジメント株式会社 Vacuum heat insulating body, heat insulating device comprising the same, and manufacturing method of vacuum heat insulating body
WO2017150494A1 (en) * 2016-03-02 2017-09-08 パナソニックIpマネジメント株式会社 Vacuum heat insulator, heat insulation device provided with same, and method for manufacturing vacuum heat insulator
CN108713120A (en) * 2016-03-02 2018-10-26 松下知识产权经营株式会社 Vacuum heat insulator, with its heat insulation device and vacuum heat insulator manufacturing method
US10539265B2 (en) 2016-03-02 2020-01-21 Panasonic Intellectual Property Management Co., Ltd. Vacuum heat insulator, heat insulation device provided with same, and method for manufacturing vacuum heat insulator

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