JP3461524B2 - Vacuum insulation pack - Google Patents
Vacuum insulation packInfo
- Publication number
- JP3461524B2 JP3461524B2 JP08173493A JP8173493A JP3461524B2 JP 3461524 B2 JP3461524 B2 JP 3461524B2 JP 08173493 A JP08173493 A JP 08173493A JP 8173493 A JP8173493 A JP 8173493A JP 3461524 B2 JP3461524 B2 JP 3461524B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- heat insulating
- molding
- hole
- metal foil
- 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
Landscapes
- Thermal Insulation (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
【0001】
【産業上の利用分野】本発明は、冷蔵庫などの断熱材と
して使用可能な真空断熱材パックに関するものである。
【0002】
【従来の技術】従来の真空断熱材パックは、内部に10
-2Torr以下の真空度を保ったパ−ライトなどの無機
質発泡粉末をプラスチック−金属箔のラミネ−トフィル
ム容器で被覆していたが、長期に真空度を保ち断熱性能
を維持していくために金属箔の厚みを十分にとっていく
と、逆に金属箔の厚みを増すことにより表面熱伝導が増
して初期状態における真空断熱材パックの熱伝導率が大
きくなり、断熱性能が悪くなる欠点があった。
【0003】例えば、30μの厚みのアルミ箔で被覆す
る場合とそうでない場合とでは、初期値において0.0
080Kcal/mh℃と0.0060Kcal/mh
℃の有意差があった。そこで初期値に優れ経時変化の少
ない容器が必要となっていた。
【0004】このような問題点を解決する手段として実
開昭58−111498号公報に記載されているものが
ある。
【0005】実開昭58−111498号公報記載の内
容を図5及び図6を用いて説明する。図において1は真
空断熱材パックでパ−ライトなどの無機質発泡粉末2及
び、プラスチック−金属箔のラミネ−トフィルムからな
る容器3から成っている。前記フィルムの構成は外層4
に20μの厚みのポロプロピレンなどのプラスチックフ
ィルム、中層5に30μの厚みのアルミ箔よりなる金属
箔、内層6に50μの厚みのポリエチレンなどのプラス
チックフィルムから成っており、それぞれ接着されてラ
ミネ−トフィルムとなっており、2枚のラミネ−トフィ
ルムの間に前記無機質発泡粉末2を充填して外周をシ−
ルしている。
【0006】ここで中層はシ−ル部7の接着内端8から
5mmの距離までの面を被覆している。このような構造
のラミネ−トフィルムを用いることによって、シ−ル部
7に金属箔がないため、熱伝導率の低い初期特性の優れ
た真空断熱材パック1が得られ、また、金属箔の無い部
分が全体の表面積に対し微小であるので、金属箔で完全
に被覆されている場合と同等の経時変化の少ない真空断
熱材パック1が得られることが特徴となっている。
【0007】
【発明が解決しようとする課題】しかしながら、前記従
来のラミネ−トフィルムの製造にあたっては、容器の大
きさを50×50×4tcmとすると、外層のプラスチ
ックフィルムを53×53cmの大きさに切断し、中層
の金属箔を51.5×51.5cmの大きさに切断し、
さらに内層のプラスチックフィルムを53×53cmの
大きさに切断して、おのおのを貼り付けなければならな
い。
【0008】このような方法では、あらかじめ所定の大
きさに切断されているため、連続生産が困難であり、工
業的に安価で製造することができない問題があった。
【0009】また、中層の金属箔の取り付け位置がずれ
ると、ヒ−トシ−ル部において、上下の金属箔が接触し
てしまい、断熱性能が低下し安定した性能を得ることが
できない問題があった。
【0010】また従来の真空断熱材パックでは、断熱箱
体の壁面に貼り付けた場合、周縁のヒ−トシ−ル部が壁
面から離れているため、発泡断熱材を充填した時にヒ−
トシ−ル部と壁面との空間部に空洞が形成され、収縮に
よる外観不良が生じ製品品質を著しく損なう問題があっ
た。
【0011】本発明は、上記従来の課題を解決するもの
であり、工業的に安価に製造することができ、また安定
した性能を有する真空断熱材パックを得ることが出来る
と共に、製品品質の優れた断熱箱体を提供することを目
的とするものである。
【0012】
【課題を解決するための手段】上記従来の課題を解決す
るために、本発明の真空断熱材パックは、プラスチック
ラミネ−トフィルムを成形した成形材に、貫通孔を設け
たプラスチック−金属箔ラミネ−トフィルムからなるバ
リヤ材を前記成形材の一部に周縁溶着して形成した上蓋
材と、プラスチック−金属箔ラミネ−トフィルムからな
る下蓋材と、連続開孔構造を有する芯材とよりなり、真
空包装後、貫通孔の周縁を少なくとも含んでバリヤ材と
成形材を溶着したものである。
【0013】また、本発明の断熱箱体は、断熱箱体の壁
面に前記真空断熱材パックの蓋材側を接着面として取り
付け、外箱と内箱によって形成される空間部に発泡断熱
材を充填したものである。
【0014】
【作用】上記構成によって、プラスチック−金属箔ラミ
ネ−トフィルムからなるバリヤ材を成形材に部分的に貼
り付ける為、金属箔による熱伝導が少なく優れた断熱性
能が得られ、また、バリヤ材が成形材にのみ設けられて
いるので、バリヤ材の貼り付け位置のずれによって、上
下の金属箔が接触することもなく、安定した性能が得ら
れる。
【0015】また、成形後の成形材にバリヤ材を周縁溶
着によって取り付ける為、取り付けが容易であり連続生
産が可能となり工業的に安価で製造することができる。
【0016】さらには、プラスチックラミネ−トフィル
ムを成形した成形材に、貫通孔を設けたプラスチック−
金属箔ラミネ−トフィルムからなるバリヤ材を前記成形
材の一部に周縁溶着して上蓋材を形成しているが、貫通
孔がない場合においては減圧容器中で減圧するとバリヤ
ー材と成形材との層間の残存空気が膨張し、溶着周縁部
を破りバリヤー材を設けた効果をなくすことがあり、貫
通孔を設けることでこの点の解決が図れ、品質の安定に
寄与するものである。そして、真空包装後、貫通孔の周
縁を少なくとも含んでバリヤ材と成形材を溶着したもの
であるから、成形材を透過した外部侵入ガスが抵抗無く
貫通孔を介して内部に達することはなく、内圧上昇によ
る断熱性能の低下もないのである。
【0017】また、真空成形によって成形材が作られて
いるので、真空断熱パックを断熱箱体の壁面に取り付け
る場合、周縁のヒ−トシ−ル部が壁面に密着するような
形状にすることが可能となる為、発泡断熱材を充填した
時の空洞形成による収縮の発生がない製品品質の安定し
た断熱箱体を得ることができる。
【0018】
【実施例】以下、本発明の一実施例を図1、図2、図
3、図4を用いて説明する。
【0019】図1において、9は真空断熱材パックで連
続気泡の硬質ウレタンフォ−ムなどの芯材10と、プラ
スチックラミネ−トフィルム11を真空成形した成形材
12とプラスチック−金属箔ラミネ−トフィルム13の
バリヤ材14らなる上蓋材15、プラスチック−金属箔
ラミネ−トフィルム13の下蓋材16から成っている。
【0020】前記フィルム11の構成は、外層に30μ
の厚みの変性アクリルニトリルなどの耐薬品性、耐ガス
バリヤ性に優れたプラスチックフィルム、中層に20μ
の厚みのポリ塩化ビニリデンなどの耐ガスバリヤ性に優
れたプラスチックフィルム、内層に30μの厚みの変性
アクリルニトリルなどの耐薬品性、耐ガスバリヤ性に優
れたプラスチックフィルムからなっており、それぞれ接
着されてラミネ−トフィルムとなっている。
【0021】前記フィルム13の構成は、外層に30μ
の厚みの変性アクリルニトリルなどの耐薬品性、耐ガス
バリヤ性に優れたプラスチックフィルム、中層に9μの
厚みのアルミ箔よりなる金属箔、内層に30μの厚みの
変性アクリルニトリルなどの耐薬品性、耐ガスバリヤ性
に優れたプラスチックフィルムからなっており、それぞ
れ接着されてラミネ−トフィルムとなっている。
【0022】成形材12はラミネ−トフィルム11を真
空成形機によって凹型に成形して得ている。
【0023】17はバリヤー材14の中央部に設けた貫
通孔で、成形材12の平坦部18にこの貫通孔14を有
する所望の寸法のバリヤ材14を貼り付けている。貼り
付けにあたっては、バリヤ材14の周縁部19をヒート
シールによって成形材12に熱溶着しており、成形材1
2とバリヤ材14間の層間空間部20は貫通孔17を介
して芯材10側に開孔している。
【0024】このように形成した上蓋材15に芯材10
を充填し、さらに上蓋材15の周縁に重なるように下蓋
材16を配置し、まず周縁のうち相対する二辺をヒート
シールする。そして、減圧容器(図示せず)に設置し、
内部を減圧しながら、残りの相対する二辺をヒ−トシ−
ルし密閉している。このあと貫通孔17の周縁21を成
形材12とヒートシールして真空断熱材パック9を得て
いる。
【0025】以上の様な構成によって、金属箔を有する
バリヤ材14が部分的に貼り付けられる為、金属箔によ
る熱伝導が少なく優れた断熱性能が得られ、また、バリ
ヤ材14が成形材12の平坦部18にのみ設けられてい
るので、バリヤ材14の貼り付け位置のずれによって上
下の金属箔が接触することもなく、安定した性能が得ら
れる。
【0026】また、上記の様な方法によれば、金属箔を
有するバリヤ材14をヒ−トシ−ルによって成形材12
に取り付ける為、取り付けが容易であり連続生産が可能
となり工業的に安価で製造することが可能となるのであ
る。
【0027】また、バリヤ材14に貫通孔17を設け、
成形材12に貼り付けているため成形材12とバリヤ材
14の層間空間部20は貫通孔17を通して芯材10に
つながっている。この結果、減圧容器21内に設置して
減圧した場合、層間空間部20も減圧されるため 貫通
孔がない場合において発生する層間空間部20の残存空
気が膨張し溶着周縁部19を破り、バリヤー材14を破
壊する現象もなく品質の安定に寄与するものである。こ
のあと貫通孔17の周縁21を成形材12とヒートシー
ルして真空断熱材パック9を得ているため 成形材12
を透過した外部侵入ガスが抵抗無く貫通孔17を介して
内部に達することはなく、内圧上昇による断熱性能の低
下もないのである。
【0028】図4において、22は断熱箱体で内箱23
と外箱24と前記外箱24の内面に隙間なく取り付けら
れた真空断熱材パック9と前記内箱23と外箱24によ
って形成された空間部に充填された発泡断熱材25から
なっている。
【0029】以上の様な構成によって、真空断熱材パッ
ク9が外箱24の内面に隙間なく取り付けられている
為、内箱23と外箱24によって形成された空間部に発
泡断熱材25を充填した場合の空洞形成がなく、収縮の
ない製品品質の安定した断熱箱体を得ることが出来る。
【0030】
【発明の効果】以上のように本発明は、プラスチックラ
ミネ−トフィルムを成形した成形材に、貫通孔を設けた
プラスチック−金属箔ラミネ−トフィルムからなるバリ
ヤ材を前記成形材の一部に周縁溶着してなる上蓋材と、
プラスチック−金属箔ラミネ−トフィルムからなる下蓋
材と、連続開孔構造を有する芯材とよりなり、真空包装
後、貫通孔の周縁を少なくとも含んでバリヤ材と成形材
を溶着した真空断熱材パックであるから、金属箔による
熱伝導が無く優れた断熱性能が得られ安定した性能が得
られるのである。
【0031】また、成形材とバリヤ材周縁部とを溶着に
より取り付ける為、取り付けが容易であり連続生産が可
能となり工業的に安価で製造することができる。
【0032】さらには、バリヤ材に貫通孔を設け、成形
材に貼り付けているため成形材とバリヤ材の層間空間部
は貫通孔を通して芯材側とつながっている。この結果、
減圧容器内に設置して減圧した場合、層間空間部も減圧
されるため 貫通孔がない場合において発生する層間空
間部の残存空気膨張による溶着周縁部破壊を防ぐことが
でき、バリヤー材の機能発揮による品質の安定に寄与す
るものであるさらには、貫通孔の周縁を成形材とヒート
シールして真空断熱材パックを得ているため 成形材を
透過した外部侵入ガスが抵抗無く貫通孔を介して内部に
達することはなく、内圧上昇による断熱性能の低下もな
いのである。
【0033】また、成形により成形材が作られているの
で、真空断熱パックを断熱箱体の壁面に取り付ける場
合、周縁のヒ−トシ−ル部が壁面に密着するような形状
にすることが可能となる為、発泡断熱材を充填した時の
空洞形成による収縮の発生がない、製品品質の安定した
断熱箱体を得ることができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum heat insulating material pack which can be used as a heat insulating material for refrigerators and the like. 2. Description of the Related Art Conventional vacuum insulation packs have a capacity of 10
Although inorganic foamed powder such as pearlite having a degree of vacuum of -2 Torr or less was coated with a plastic-metal foil laminating film container, metal was used to maintain the degree of vacuum for a long time and maintain heat insulation performance. On the other hand, if the thickness of the foil is sufficiently increased, the surface heat conduction increases by increasing the thickness of the metal foil, so that the thermal conductivity of the vacuum heat insulating material pack in the initial state increases, and the heat insulating performance deteriorates. [0003] For example, in the case of coating with an aluminum foil having a thickness of 30 µm and in the case of not covering it, an initial value of 0.0
080Kcal / mh ° C and 0.0060Kcal / mh
There was a significant difference in ° C. Therefore, a container having an excellent initial value and a small change over time has been required. As a means for solving such a problem, there is one disclosed in Japanese Utility Model Laid-Open No. 58-111498. The contents described in Japanese Utility Model Laid-Open Publication No. Sho 58-111498 will be described with reference to FIGS. In FIG. 1, reference numeral 1 denotes a vacuum heat insulating material pack comprising an inorganic foamed powder 2 such as perlite, and a container 3 made of a laminated film of plastic-metal foil. The film has an outer layer 4
A plastic film such as polypropylene having a thickness of 20 μm, a metal foil made of aluminum foil having a thickness of 30 μm for the middle layer 5, and a plastic film such as polyethylene having a thickness of 50 μm for the inner layer 6. The inorganic foamed powder 2 is filled between two laminate films to seal the outer periphery.
I have. Here, the middle layer covers the surface of the seal portion 7 up to a distance of 5 mm from the inner end 8 of the adhesive. By using the laminate film having such a structure, the vacuum heat insulating material pack 1 having a low thermal conductivity and excellent initial characteristics can be obtained because the seal portion 7 has no metal foil. Since the portion is minute with respect to the entire surface area, the vacuum heat-insulating material pack 1 with little change over time, which is equivalent to the case where it is completely covered with metal foil, is characterized. However, in manufacturing the above-mentioned conventional laminated film, if the size of the container is 50 × 50 × 4 tcm, the outer plastic film is reduced to a size of 53 × 53 cm. Cut, cut the metal foil of the middle layer into a size of 51.5 x 51.5 cm,
Furthermore, the plastic film of the inner layer must be cut into a size of 53 × 53 cm, and each must be attached. [0008] In such a method, there is a problem that continuous production is difficult because it is cut into a predetermined size in advance, and it cannot be manufactured industrially at low cost. Also, if the mounting position of the metal foil of the middle layer is shifted, the upper and lower metal foils come into contact in the heat seal portion, resulting in a problem that the heat insulation performance is reduced and stable performance cannot be obtained. Was. Further, in the conventional vacuum heat insulating material pack, when it is attached to the wall surface of the heat insulating box, the peripheral heat seal portion is separated from the wall surface.
A cavity is formed in the space between the seal portion and the wall surface, resulting in a poor appearance due to shrinkage, resulting in a problem that product quality is significantly impaired. The present invention solves the above-mentioned conventional problems. It is possible to obtain a vacuum heat insulating material pack which can be manufactured industrially at a low cost and has a stable performance, and has excellent product quality. It is an object to provide a heat-insulated box body. [0012] In order to solve the above-mentioned conventional problems, a vacuum heat insulating material pack of the present invention comprises a plastic-metal having a through-hole formed in a molded material obtained by molding a plastic laminated film. An upper lid material formed by peripherally welding a barrier material made of a foil laminated film to a part of the molding material, a lower lid material made of a plastic-metal foil laminated film, and a core material having a continuous opening structure. After the vacuum packaging, the barrier material and the molding material are welded at least including the periphery of the through hole. Further, in the heat insulating box of the present invention, the lid of the vacuum heat insulating material pack is attached to a wall surface of the heat insulating box as an adhesive surface, and a foam heat insulating material is provided in a space formed by the outer box and the inner box. It is filled. According to the above construction, a barrier material composed of a plastic-metal foil laminate film is partially adhered to a molding material, so that excellent heat insulating performance with little heat conduction by the metal foil can be obtained. Since the material is provided only on the molding material, stable performance can be obtained without the upper and lower metal foils being in contact with each other due to the displacement of the bonding position of the barrier material. In addition, since the barrier material is attached to the formed material by peripheral welding, the attachment is easy, continuous production is possible, and industrially inexpensive production is possible. Further, a plastic material having a through-hole formed in a molding material obtained by molding a plastic laminate film.
A barrier material made of a metal foil laminating film is peripherally welded to a part of the molding material to form an upper lid material, but when there is no through hole, when the pressure is reduced in a vacuum vessel, the barrier material and the molding material are separated. The residual air between the layers expands, which may break the peripheral edge of the weld and eliminate the effect of providing the barrier material. The provision of the through hole can solve this problem and contribute to the stability of quality. And, after vacuum packaging, since the barrier material and the molding material are welded at least including the peripheral edge of the through hole, external invasion gas that has permeated the molding material does not reach the inside through the through hole without resistance, There is no decrease in heat insulation performance due to an increase in internal pressure. Further, since the molding material is made by vacuum forming, when the vacuum heat insulating pack is mounted on the wall surface of the heat insulating box, it is necessary to form the heat sealing portion on the peripheral edge into close contact with the wall surface. As a result, it is possible to obtain a heat-insulating box with stable product quality, which does not cause shrinkage due to the formation of cavities when the foam heat-insulating material is filled. An embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3 and 4. In FIG. 1, reference numeral 9 denotes a vacuum heat insulating material pack, a core material 10 such as hard urethane foam having open cells, a molded material 12 obtained by vacuum forming a plastic laminated film 11, and a plastic-metal foil laminated film 13. And a lower cover member 16 made of a plastic-metal foil laminated film 13. The structure of the film 11 is as follows.
Plastic film with excellent chemical resistance and gas barrier resistance such as denatured acrylic nitrile with a thickness of 20 μm for the middle layer
It is made of plastic film with excellent gas barrier property such as polyvinylidene chloride with thickness of 30mm, and plastic film with excellent chemical and gas barrier property such as modified acrylonitrile with 30μ thickness in the inner layer. -Film. The structure of the film 13 is as follows.
Plastic film with excellent chemical and gas barrier properties such as modified acrylic nitrile with a thickness of 9 mm, metal foil made of 9 μm thick aluminum foil in the middle layer, and chemical resistance with a 30 μm thick modified acrylic nitrile in the inner layer. It is made of a plastic film having excellent gas barrier properties, and is bonded to each other to form a laminate film. The molding material 12 is obtained by molding the laminate film 11 into a concave shape using a vacuum molding machine. Reference numeral 17 denotes a through hole provided in the center of the barrier member 14, and a barrier member 14 having a desired size and having the through hole 14 is attached to a flat portion 18 of the molding material 12. At the time of sticking, the peripheral portion 19 of the barrier material 14 is heat-welded to the molding material 12 by heat sealing.
An interlayer space 20 between the second member 2 and the barrier member 14 is opened through the through hole 17 toward the core member 10. The core material 10 is attached to the upper lid material 15 thus formed.
, And the lower lid member 16 is arranged so as to overlap the peripheral edge of the upper lid member 15, and first, two opposing sides of the peripheral edge are heat-sealed. Then, it is installed in a decompression container (not shown),
While depressurizing the inside, heat the remaining two opposite sides.
And sealed. Thereafter, the peripheral edge 21 of the through hole 17 is heat-sealed with the molding material 12 to obtain the vacuum heat insulating material pack 9. With the above structure, the barrier material 14 having the metal foil is partially adhered, so that the heat conduction by the metal foil is small and excellent heat insulating performance is obtained. Is provided only on the flat portion 18 of the above, so that the upper and lower metal foils do not come into contact with each other due to the displacement of the bonding position of the barrier material 14, and stable performance is obtained. Further, according to the above-described method, the barrier material 14 having a metal foil is formed by heat sealing the molding material 12.
Therefore, it is easy to install, it is possible to perform continuous production, and it is possible to manufacture it industrially at low cost. Further, a through hole 17 is provided in the barrier material 14,
Since it is attached to the molding material 12, the interlayer space 20 between the molding material 12 and the barrier material 14 is connected to the core material 10 through the through hole 17. As a result, when the space is depressurized in the pressure vessel 21, the pressure in the interlayer space 20 is also reduced, so that the residual air in the interlayer space 20 generated when there is no through hole expands and breaks the welding peripheral portion 19, and the barrier 19 is formed. It contributes to the stability of quality without the phenomenon of breaking the material 14. Thereafter, the peripheral edge 21 of the through hole 17 is heat-sealed with the molding material 12 to obtain the vacuum heat insulating material pack 9.
Does not reach the inside through the through-hole 17 without resistance, and there is no decrease in heat insulation performance due to an increase in internal pressure. In FIG. 4, reference numeral 22 denotes an insulated box,
, An outer box 24, a vacuum heat insulating material pack 9 attached to the inner surface of the outer box 24 without any gap, and a foam heat insulating material 25 filled in a space formed by the inner box 23 and the outer box 24. With the above configuration, since the vacuum heat insulating material pack 9 is mounted on the inner surface of the outer case 24 without any gap, the space formed by the inner case 23 and the outer case 24 is filled with the foamed heat insulating material 25. In this case, there is no void formation and a stable heat-insulating box without shrinkage can be obtained. As described above, according to the present invention, a molding material obtained by molding a plastic laminated film is formed by adding a barrier material composed of a plastic-metal foil laminated film provided with through holes to a part of the molding material. An upper lid material welded to the periphery,
A vacuum heat insulating material pack comprising a lower lid material made of a plastic-metal foil laminated film, and a core material having a continuous opening structure, and after vacuum packaging, welding a barrier material and a molding material including at least the periphery of the through hole. Therefore, there is no heat conduction by the metal foil, and excellent heat insulating performance can be obtained, and stable performance can be obtained. Further, since the molding material and the peripheral portion of the barrier material are attached by welding, the attachment is easy, continuous production is possible, and industrially inexpensive production is possible. Further, since a through hole is provided in the barrier material and is attached to the molding material, the interlayer space between the molding material and the barrier material is connected to the core material through the through hole. As a result,
When depressurized by installing in a depressurized container, the pressure in the interlayer space is also reduced, so that it is possible to prevent the breakage of the welding peripheral part due to residual air expansion in the interlayer space that occurs when there is no through hole, and to demonstrate the function of the barrier material In addition, since the vacuum insulation material pack is obtained by heat-sealing the periphery of the through hole with the molding material, external invasion gas that has passed through the molding material passes through the through hole without resistance. It does not reach the inside, and there is no decrease in heat insulation performance due to an increase in internal pressure. Also, since the molding material is formed by molding, when the vacuum heat insulating pack is mounted on the wall surface of the heat insulating box, it is possible to form the heat seal portion on the peripheral edge into close contact with the wall surface. Therefore, it is possible to obtain a heat-insulating box with stable product quality, which does not cause shrinkage due to the formation of a cavity when the foamed heat-insulating material is filled.
【図面の簡単な説明】
【図1】本発明の一実施例における真空断熱材パックの
断面図
【図2】本発明の一実施例における製造途上における真
空断熱材パックの成形材の拡大断面図
【図3】本発明の一実施例における真空断熱材パックの
成形材の拡大断面図
【図4】本発明の一実施例における断熱箱体の断面図
【図5】従来の真空断熱材パックの断面図
【図6】図5の要部拡大断面図
【符号の説明】
9 真空断熱材パック
10 芯材
11 プラスチックラミネートフィルム
12 成形材
13 プラスチック−金属箔ラミネートフィルム
14 バリヤ材
15 上蓋材
16 下蓋材
17 貫通孔
21 断熱箱体
22 内箱
23 外箱
24 発泡断熱材BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a vacuum heat insulating material pack according to one embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a molding material of the vacuum heat insulating material pack during manufacturing according to one embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view of a molding material of a vacuum heat insulating material pack according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of a heat insulating box body according to one embodiment of the present invention. Cross-sectional view [FIG. 6] Main part enlarged cross-sectional view of FIG. 5 [Description of reference numerals] 9 Vacuum insulation material pack 10 Core material 11 Plastic laminated film 12 Molded material 13 Plastic-metal foil laminated film 14 Barrier material 15 Upper lid material 16 Lower lid Material 17 Through-hole 21 Insulated box 22 Inner box 23 Outer box 24 Foamed insulation
フロントページの続き (56)参考文献 特開 昭60−174639(JP,A) 特開 平4−257685(JP,A) 特開 平3−212345(JP,A) 特開 昭64−67585(JP,A) (58)調査した分野(Int.Cl.7,DB名) F16L 59/00 - 59/22 F25D 23/02 - 23/08 B32B 1/00 - 35/00 Continuation of the front page (56) References JP-A-60-174639 (JP, A) JP-A-4-257768 (JP, A) JP-A-3-212345 (JP, A) JP-A 64-67585 (JP) , A) (58) Fields investigated (Int. Cl. 7 , DB name) F16L 59/00-59/22 F25D 23/02-23/08 B32B 1/00-35/00
Claims (1)
した成形材に、貫通孔を設けたプラスチック−金属箔ラ
ミネ−トフィルムからなるバリヤ材を前記成形材の一部
に周縁溶着してなる上蓋材と、プラスチック−金属箔ラ
ミネ−トフィルムからなる下蓋材と、連続開孔構造を有
する芯材とよりなり、真空包装後、貫通孔の周縁を少な
くとも含んでバリヤ材と成形材を溶着した真空断熱材パ
ック。(57) [Claim 1] A molding material obtained by molding a plastic laminated film is provided with a barrier material made of a plastic-metal foil laminated film provided with a through hole on a part of the molding material. It is composed of a welded upper lid material, a lower lid material made of a plastic-metal foil laminated film, and a core material having a continuous opening structure. After vacuum packaging, forming a barrier material including at least the periphery of the through hole. Vacuum insulation pack with welding material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08173493A JP3461524B2 (en) | 1993-04-08 | 1993-04-08 | Vacuum insulation pack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08173493A JP3461524B2 (en) | 1993-04-08 | 1993-04-08 | Vacuum insulation pack |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06300181A JPH06300181A (en) | 1994-10-28 |
JP3461524B2 true JP3461524B2 (en) | 2003-10-27 |
Family
ID=13754663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP08173493A Expired - Fee Related JP3461524B2 (en) | 1993-04-08 | 1993-04-08 | Vacuum insulation pack |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3461524B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3792801B2 (en) * | 1996-10-07 | 2006-07-05 | 松下冷機株式会社 | Vacuum insulation |
JP4708308B2 (en) * | 2006-10-30 | 2011-06-22 | シャープ株式会社 | Recycling method of refrigerator |
JP2018013198A (en) * | 2016-07-22 | 2018-01-25 | 日立アプライアンス株式会社 | Vacuum heat insulation material and refrigerator using the same |
-
1993
- 1993-04-08 JP JP08173493A patent/JP3461524B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06300181A (en) | 1994-10-28 |
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