JP2012057838A - Refrigerator - Google Patents

Refrigerator Download PDF

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JP2012057838A
JP2012057838A JP2010199810A JP2010199810A JP2012057838A JP 2012057838 A JP2012057838 A JP 2012057838A JP 2010199810 A JP2010199810 A JP 2010199810A JP 2010199810 A JP2010199810 A JP 2010199810A JP 2012057838 A JP2012057838 A JP 2012057838A
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vacuum heat
heat insulation
insulation panel
bag body
film
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JP5865581B2 (en
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Juichi Shimazaki
樹一 嶋崎
Takaaki Yoshida
隆明 吉田
Tomoyasu Saeki
友康 佐伯
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Toshiba Corp
Toshiba Lifestyle Products and Services Corp
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Toshiba Corp
Toshiba Consumer Electronics Holdings Corp
Toshiba Home Appliances Corp
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Abstract

PROBLEM TO BE SOLVED: To prevent breakage of a bag body and to maintain heat insulating performance of a vacuum heat insulating panel, even when the vacuum heat insulating panel is stuck to a face having a concave part.SOLUTION: A refrigerator includes an outer box, an inner box housed inside the outer box, and the vacuum heat insulating panel disposed between the outer box and the inner box. A wall part of one of the outer box and the inner box has a concave part that opens to the vacuum heat insulating panel and is used as a stuck surface in which the vacuum heat insulating panel is to be stuck covering the concave part. The vacuum heat insulating panel includes a core material housed in a bag body, and the inside of the bag body is sealed under reduced pressure. The bag body has a first film including a metal foil layer having a gas barrier property on one surface. The vacuum heat insulating panel is disposed so that the first film is made to face the stuck surface.

Description

本発明の実施形態は、冷蔵庫に関する。   Embodiments of the present invention relate to a refrigerator.

従来、例えば、家庭用の冷蔵庫において、その断熱箱体は、外箱と内箱との間に断熱材として断熱性能に優れる真空断熱パネルを使用することが行われてきている（例えば、特許文献１参照）。この真空断熱パネルは、例えば、グラスウールなどの無機繊維の積層材を圧縮硬化させた芯材を、ガスバリア性能を得るために金属層を含んで構成される袋体に収納し、その内部を真空排気して減圧密封させて構成されたものである。   2. Description of the Related Art Conventionally, for example, in a refrigerator for home use, the heat insulating box body has been used to use a vacuum heat insulating panel having excellent heat insulating performance as a heat insulating material between an outer box and an inner box (for example, Patent Documents). 1). This vacuum insulation panel, for example, stores a core material obtained by compressing and curing a laminated material of inorganic fibers such as glass wool in a bag body including a metal layer in order to obtain gas barrier performance, and evacuates the inside. Thus, it is configured to be sealed under reduced pressure.

このような真空断熱パネルは、一般に平坦な板状であることが多い。このため、真空断熱パネルが貼付けられる貼付面も平坦であることが望ましい。しかし、断熱箱体を覆う真空断熱パネルの面積、言い換えれば、真空断熱パネルの被覆率を上げるためには、貼付面に凹部が存在することが避けられない場合がある。しかし、貼付面に凹部が存在すると、真空断熱パネルは、組立て時や組立て後の振動などによって凹部付近に局所的な負荷がかかり、袋体が破損してしまう虞があった。この場合、袋体の金属層が破損してそのガスバリア性能が失われると、内部の減圧状態を維持することができなくなり、真空断熱パネルの断熱性能は著しく低下してしまうという事情があった。   In general, such a vacuum heat insulation panel is often a flat plate. For this reason, it is desirable that the sticking surface on which the vacuum heat insulating panel is stuck is also flat. However, in order to increase the area of the vacuum heat insulation panel covering the heat insulation box, in other words, the coverage of the vacuum heat insulation panel, it may be unavoidable that there is a recess on the sticking surface. However, if there is a recess on the affixing surface, the vacuum heat insulation panel may be locally loaded near the recess due to vibration during assembly or after assembly, and the bag body may be damaged. In this case, if the metal layer of the bag is damaged and its gas barrier performance is lost, the internal reduced pressure state cannot be maintained, and the heat insulating performance of the vacuum heat insulating panel is remarkably deteriorated.

特開平４−２６０７８０号公報JP-A-4-260780

そこで、凹部を有する面に真空断熱パネルが貼付けられる場合であっても、袋体の破損を防ぎ、真空断熱パネルの断熱性能を維持することができる冷蔵庫を提供する。   Then, even if it is a case where a vacuum heat insulation panel is affixed on the surface which has a recessed part, the failure | damage of a bag body is prevented and the refrigerator which can maintain the heat insulation performance of a vacuum heat insulation panel is provided.

本実施形態の冷蔵庫は、外箱と、前記外箱の内部に収容される内箱と、前記外箱と前記内箱との間に設けられる真空断熱パネルと、を備える。前記外箱と前記内箱のうち一方の壁部は、前記真空断熱パネルに向かって開口した凹部を有するとともに該凹部を覆うようにして前記真空断熱パネルが貼付けられる貼付面とされる。前記真空断熱パネルは、芯材が袋体に収容されて該袋体の内部が減圧密封されて構成される。前記袋体は、一方の面にガスバリア性を有する金属箔層を含んで構成される第１のフィルムを有する。前記真空断熱パネルは、前記第１のフィルムを前記貼付面に面して設けられている。   The refrigerator according to the present embodiment includes an outer box, an inner box housed inside the outer box, and a vacuum heat insulating panel provided between the outer box and the inner box. One wall portion of the outer box and the inner box has a recess opening toward the vacuum heat insulation panel and is a sticking surface to which the vacuum heat insulation panel is attached so as to cover the recess. The vacuum heat insulation panel is configured by a core material being housed in a bag body and the inside of the bag body being sealed under reduced pressure. The said bag body has a 1st film comprised including the metal foil layer which has gas barrier property in one surface. The vacuum heat insulation panel is provided with the first film facing the sticking surface.

第１実施形態を示すもので、扉を除いた冷蔵庫本体の概略構成を示す斜視図The perspective view which shows 1st Embodiment and shows schematic structure of the refrigerator main body except a door 真空断熱パネルの構造を示す部分断面図Partial sectional view showing the structure of a vacuum insulation panel 内箱に真空断熱パネルが貼付けられた状態を示す断面図Sectional drawing which shows the state by which the vacuum heat insulation panel was affixed to the inner box 第２実施形態を示す図３相当図FIG. 3 equivalent view showing the second embodiment 第３実施形態を示す図３相当図FIG. 3 equivalent view showing the third embodiment 第４実施形態を示す図３相当図FIG. 3 equivalent view showing the fourth embodiment

以下、複数の実施形態による冷蔵庫を、図面を参照して説明する。なお、各実施形態において実質的に同一の構成部位には同一の符号を付し、説明を省略する。
（第１実施形態）
まず、第１実施形態について、図１〜図３を参照して説明する。図１に示すように、冷蔵庫本体１は、前面が開口した縦長矩形箱状をなす断熱箱体２に、図示しない冷凍サイクルなどが組込まれている。詳しい説明は省略するが、断熱箱体２の内部は、上下及び一部で左右に仕切られ、冷蔵室、野菜室、冷凍室などの複数の貯蔵室３が設けられる。図示は省略するが、各貯蔵室３の前面部には、図示しないヒンジ開閉式の断熱扉、あるいは、引出し式の断熱扉が設けられる。この断熱箱体２は、鋼板製の外箱４の内部に、合成樹脂製の内箱５が収容される形態で構成されている。 Hereinafter, refrigerators according to a plurality of embodiments will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to the substantially same component, and description is abbreviate | omitted.
(First embodiment)
First, a first embodiment will be described with reference to FIGS. As shown in FIG. 1, the refrigerator main body 1 has a refrigeration cycle (not shown) or the like incorporated in a heat insulating box 2 having a vertically long rectangular box shape with an open front. Although detailed explanation is omitted, the inside of the heat insulation box 2 is divided into left and right in the top and bottom, and a plurality of storage rooms 3 such as a refrigerator compartment, a vegetable compartment, a freezer compartment, etc. are provided. Although not shown in the drawings, a hinged heat insulating door (not shown) or a drawer heat insulating door (not shown) is provided on the front surface of each storage chamber 3. The heat insulation box 2 is configured in such a manner that an inner box 5 made of synthetic resin is accommodated in an outer box 4 made of steel plate.

断熱箱体２の外箱４と内箱５との間には、周囲の各壁部に対応させた真空断熱パネルが設けられている。具体的には、左右側壁部には左右側壁部用の真空断熱パネル６が設けられ、天井部には天井部用の真空断熱パネル７が設けられている。そして、後壁部と底部にも、図示はしないが、後壁部用の真空断熱パネルと底部用の真空断熱パネルが設けられている。   Between the outer box 4 and the inner box 5 of the heat insulation box 2, a vacuum heat insulation panel corresponding to each surrounding wall portion is provided. Specifically, the left and right side wall portions are provided with vacuum heat insulating panels 6 for left and right side wall portions, and the ceiling portion is provided with a vacuum heat insulating panel 7 for ceiling portions. Although not shown, the rear wall portion and the bottom portion are also provided with a vacuum heat insulation panel for the rear wall portion and a vacuum heat insulation panel for the bottom portion.

ここで、真空断熱パネル６，７、及び図示しない後壁部用、底部用の真空断熱パネルの構成について、真空断熱パネル６を代表させて説明する。図２に、真空断熱パネル６の端部の断面を示すが、真空断熱パネル６は、取付けられる壁部の形状、即ち、左右側壁部の形状に合わせて成形された矩形板状の芯材８を袋体たる外袋体９内に収容し、外袋体９の内部を真空減圧状態に保持したまま密封して構成されたものである。具体的には、芯材８は、断熱性の高い材料、例えば、グラスウールやシリカアルミナなどの無機繊維、又はシリカ粉末などの無機粉体からなる積層材８ａを、例えばポリエチレンなどの合成樹脂フィルムからなる内袋８ｂに収納した後、矩形板状に圧縮硬化されて成形されたものである。この芯材８は、ガスバリア性能を有する外袋体９に収容された状態で、外袋体９内が真空排気されて減圧される。減圧を維持したまま外袋体９の開口部が熱溶着により密封されて外袋体９が密閉される。   Here, the vacuum heat insulation panels 6 and 7 and the structures of the vacuum heat insulation panels for the rear wall and the bottom part (not shown) will be described by taking the vacuum heat insulation panel 6 as a representative. FIG. 2 shows a cross section of the end portion of the vacuum heat insulating panel 6. The vacuum heat insulating panel 6 is a rectangular plate-shaped core material 8 formed according to the shape of the wall portion to be attached, that is, the shape of the left and right side wall portions. Is housed in an outer bag body 9 as a bag body, and the inside of the outer bag body 9 is hermetically sealed while being kept in a vacuum reduced pressure state. Specifically, the core material 8 is made of a highly heat-insulating material, for example, a laminated material 8a made of inorganic fibers such as glass wool or silica alumina, or inorganic powders such as silica powder, and a synthetic resin film such as polyethylene. After being stored in the inner bag 8b, it is molded by being compressed and cured into a rectangular plate shape. The core material 8 is evacuated and depressurized in the outer bag body 9 while being accommodated in the outer bag body 9 having gas barrier performance. The opening of the outer bag body 9 is sealed by heat welding while maintaining the reduced pressure, and the outer bag body 9 is sealed.

外袋体９は、２枚の積層フィルムを周囲部において熱溶着によって貼り合わされて構成されている。具体的には、外袋体９は、一方の面に、第１のフィルムたるアルミ箔フィルム１０を有している。このアルミ箔フィムル１０は、ガスバリア性を有する金属箔層たるアルミ箔層１０ｂを含んで構成されている。また、他方の面には、第２のフィルムたるアルミ蒸着フィルム１１を有している。このアルミ蒸着フィルム１１は、ガスバリア性を有する金属蒸着層たるアルミ蒸着層１１ｂを含んで構成されている。この場合、アルミ箔フィルム１０は、外側から芯材８側に向かって、表面保護層１０ａと、ガスバリア層となるアルミ箔層１０ｂと、熱溶着層１０ｃとを順に有する３層構造とされている。これに対し、アルミ蒸着フィルム１１は、外側から芯材８側に向かって、表面保護層１１ａと、ガスバリア層となるアルミ蒸着層１１ｂと、熱溶着層１１ｃとを順に有する３層構造とされている。このように、アルミ箔フィルム１０とアルミ蒸着フィルム１１とでは、ガスバリア層の材質をアルミ箔層１０ｂとするかアルミ蒸着層１１ｂとするかの点で異なっている。   The outer bag body 9 is configured by bonding two laminated films together at the peripheral portion by heat welding. Specifically, the outer bag body 9 has an aluminum foil film 10 as a first film on one surface. The aluminum foil film 10 includes an aluminum foil layer 10b which is a metal foil layer having gas barrier properties. Moreover, it has the aluminum vapor deposition film 11 which is a 2nd film in the other surface. The aluminum vapor deposition film 11 includes an aluminum vapor deposition layer 11b which is a metal vapor deposition layer having gas barrier properties. In this case, the aluminum foil film 10 has a three-layer structure including a surface protective layer 10a, an aluminum foil layer 10b serving as a gas barrier layer, and a heat welding layer 10c in this order from the outside toward the core material 8 side. . On the other hand, the aluminum vapor-deposited film 11 has a three-layer structure having a surface protective layer 11a, an aluminum vapor-deposited layer 11b serving as a gas barrier layer, and a heat-welded layer 11c in this order from the outside toward the core material 8 side. Yes. Thus, the aluminum foil film 10 and the aluminum vapor deposition film 11 are different in that the material of the gas barrier layer is the aluminum foil layer 10b or the aluminum vapor deposition layer 11b.

アルミ箔フィルム１０及びアルミ蒸着フィルム１１において、表面保護層１０ａ，１１ａは、例えばポリエチレンテレフタレートなどの比較的熱に強い合成樹脂から構成されている。また、熱溶着層１０ｃ，１１ｃは、例えば高密度ポリエチレンなどの熱溶着性を有する合成樹脂から構成されている。アルミ箔フィルム１０の熱溶着層１０ｃ面と、アルミ蒸着フィルム１１の熱溶着層１１ｃ面とを対向して重ね合わせた状態で周囲部を加圧及び加熱することで、アルミ箔フィルム１０とアルミ蒸着フィルム１１とが熱溶着され、密封された袋状の外袋体９が形成される。   In the aluminum foil film 10 and the aluminum vapor-deposited film 11, the surface protective layers 10a and 11a are made of a relatively heat-resistant synthetic resin such as polyethylene terephthalate. The heat welding layers 10c and 11c are made of a synthetic resin having a heat welding property such as high density polyethylene. By pressing and heating the peripheral portion in a state in which the surface of the heat-welded layer 10c of the aluminum foil film 10 and the surface of the heat-welded layer 11c of the aluminum vapor-deposited film 11 face each other, the aluminum foil film 10 and the aluminum vapor-deposited are heated. The film 11 is thermally welded to form a sealed bag-shaped outer bag body 9.

この場合、図２（ａ）に示すように、真空断熱パネル６は、その外周縁部に、外袋体９が芯材８の周囲にはみ出すようにして耳部６ａを有している。この耳部６ａは、図２（ｂ）に示すように、アルミ蒸着フィルム１１側に折り返されて、テープなどでアルミ蒸着フィルム１１に固定される。この耳部６ａは、アルミ箔フィルム１０とアルミ蒸着フィルム１１との間の十分なシール性を得るために、熱溶着面積を十分に広く確保する目的で設けられている。   In this case, as shown in FIG. 2A, the vacuum heat insulating panel 6 has an ear portion 6 a at the outer peripheral edge thereof so that the outer bag body 9 protrudes around the core material 8. As shown in FIG. 2B, the ear 6a is folded back to the aluminum vapor deposition film 11 side and fixed to the aluminum vapor deposition film 11 with a tape or the like. The ear portion 6a is provided for the purpose of ensuring a sufficiently large heat-welded area in order to obtain a sufficient sealing property between the aluminum foil film 10 and the aluminum deposited film 11.

ここで、アルミ箔フィルム１０とアルミ蒸着フィルム１１について、これらガスバリア層となる金属層の構成を、アルミ箔層１０ｂ又はアルミ蒸着層１１ｂとした理由について簡単に説明する。
通常、真空断熱パネルは、内部の真空減圧状態を維持するために、ガスバリア性能に優れた外袋体に芯材を収納して減圧密封されて構成される。外袋体にガスバリア性能を発揮させるために、アルミなどの金属層を有したフィルムが用いられる場合がある。この場合、前記金属層には、アルミ箔層を用いたり、アルミ蒸着層を用いたりすることが一般的である。アルミ蒸着層は、高真空状態でアルミを加熱蒸発させ、母材となるフィルムに蒸発させたアルミを付着、堆積させることで形成される。このアルミ蒸着層の膜厚としては、例えば０．１μｍ以下のものが一般に利用される。このようなアルミ蒸着層は、薄く均一に形成されるという利点がある。このため、真空断熱パネルの性能を左右する真空断熱パネル表面の金属層、即ち、ガスバリア層の熱伝導率を、アルミ蒸着層においては低くすることができる。その反面、アルミ蒸着層は、その膜厚を厚くし難くいという事情がある。従って、アルミ蒸着層は薄い層で構成されるため、母材フィルムの大きな変形に伴って亀裂が生じ易く、また、引っかきなどにより傷が付き易いという不都合がある。さらに、製造過程において高真空状態が必要であるため、高価な設備が必要となり、コスト高になり易いという不都合がある。 Here, about the aluminum foil film 10 and the aluminum vapor deposition film 11, the reason which made the structure of the metal layer used as these gas barrier layers the aluminum foil layer 10b or the aluminum vapor deposition layer 11b is demonstrated easily.
Usually, the vacuum heat insulation panel is configured by housing a core material in an outer bag body excellent in gas barrier performance and sealing under reduced pressure in order to maintain an internal vacuum reduced pressure state. A film having a metal layer such as aluminum may be used to make the outer bag body exhibit gas barrier performance. In this case, an aluminum foil layer or an aluminum vapor deposition layer is generally used for the metal layer. The aluminum vapor deposition layer is formed by heating and evaporating aluminum in a high vacuum state, and depositing and depositing the evaporated aluminum on a film as a base material. As the film thickness of the aluminum vapor deposition layer, for example, a film having a thickness of 0.1 μm or less is generally used. Such an aluminum vapor deposition layer has the advantage of being formed thinly and uniformly. For this reason, the thermal conductivity of the metal layer on the surface of the vacuum heat insulation panel that influences the performance of the vacuum heat insulation panel, that is, the gas barrier layer, can be lowered in the aluminum vapor deposition layer. On the other hand, the aluminum vapor deposition layer has a situation that it is difficult to increase the film thickness. Therefore, since the aluminum vapor deposition layer is composed of a thin layer, there is a disadvantage that cracks are likely to occur due to a large deformation of the base material film, and scratches are easily caused by scratching. Furthermore, since a high vacuum state is required in the manufacturing process, expensive equipment is required, and the cost tends to increase.

これに対し、アルミ箔層は、材料となるアルミ板を圧延ローラーなどで圧延されたアルミ箔から構成される。このアルミ箔の両面を合成樹脂で挟んでラミネートすることで、アルミ箔層を有するフィルムが形成される。このアルミ箔層は、アルミ蒸着層に比べて安価に大量に生産できることから、コスト面で有利になる。アルミ箔層の膜厚としては、例えば５〜２０μｍ程度のものが一般に利用される。この場合、アルミ箔層は、アルミ蒸着層に比べて厚いため、フィルムの変形に強く、また、引っかきなどに対しても比較的強いという利点がある。その反面、真空断熱パネル表面、つまり、ガスバリア層の熱伝導率は、アルミ蒸着層に比べてアルミ箔層の方が高くなってしまうという不都合がある。   On the other hand, an aluminum foil layer is comprised from the aluminum foil which rolled the aluminum plate used as material with a rolling roller. A film having an aluminum foil layer is formed by laminating both sides of this aluminum foil with a synthetic resin. Since this aluminum foil layer can be produced in large quantities at a lower cost than the aluminum vapor deposition layer, it is advantageous in terms of cost. As the film thickness of the aluminum foil layer, for example, about 5 to 20 μm is generally used. In this case, since the aluminum foil layer is thicker than the aluminum vapor deposition layer, there is an advantage that it is strong against deformation of the film and relatively strong against scratches. On the other hand, the heat conductivity of the surface of the vacuum heat insulating panel, that is, the gas barrier layer, is disadvantageous in that the aluminum foil layer is higher than the aluminum vapor deposition layer.

上記の理由により、本実施形態では、真空断熱パネル６の外袋体９において、一方の面はアルミ箔層１０ｂを含む構成とし、他方の面はアルミ蒸着層１１ｂを含む構成としている。この構成により、良好なガスバリア性能を維持するとともに、一方の面をアルミ箔層１０ｂとして膜厚を厚いものとすることで、高い耐破袋性を確保し、他方の面をアルミ蒸着層１１ｂとして膜厚を薄いものとすることで、真空断熱パネル６表面の熱伝導率をより低く抑えたものとすることができる。   For the above reason, in the present embodiment, in the outer bag body 9 of the vacuum heat insulating panel 6, one surface includes the aluminum foil layer 10b and the other surface includes the aluminum vapor deposition layer 11b. With this configuration, while maintaining a good gas barrier performance, one side is made of an aluminum foil layer 10b to increase the film thickness, thereby ensuring high bag resistance and the other side being made of an aluminum vapor deposition layer 11b. By making the film thickness thin, the thermal conductivity of the surface of the vacuum heat insulating panel 6 can be further reduced.

ここで、真空断熱パネル６は、外箱４と内箱５の間に設けられている。具体的には、外箱４と内箱５のうち、図３に示すように、内箱５の左右側壁部の外側が、真空断熱パネル６が取付けられる貼付面５ａとされている。そして、真空断熱パネル６は、アルミ箔フィルム１０を貼付面５ａに面して配置されて、例えば熱可塑性接着剤、いわゆるホットメルトなどによって貼付面５ａに貼付けられて固定されている。この場合、貼付面５ａには、凹部たるビード裏部５ｂが形成されている。このビード裏部５ｂは、貯蔵室３の内方に突出するようにして設けられた内箱ビード５ｃにおける内箱５の外側、即ち、内箱ビード５ｃの裏側を構成していている。このため、ビード裏部５ｂは、真空断熱パネル６に向かって開口した凹状、即ち、貼付面５ａ側が開口した凹状をなしている。そして、このビード裏部５ｂ、即ち、内箱ビード５ｃは、その断面がコ字状をなすとともに、下側が貯蔵室３に向けて若干上向き傾斜する形状をなしている。この場合、真空断熱パネル６は、ビード裏部５ｂを覆うようにして貼付面５ａに貼付けられている。なお、内箱ビード５ｃには、貯蔵室３内を上下に仕切るようにして取外し可能な載置棚１２が載置される。   Here, the vacuum heat insulation panel 6 is provided between the outer box 4 and the inner box 5. Specifically, of the outer box 4 and the inner box 5, as shown in FIG. 3, the outer sides of the left and right side wall portions of the inner box 5 are affixed surfaces 5 a to which the vacuum heat insulating panel 6 is attached. And the vacuum heat insulation panel 6 is arrange | positioned with the aluminum foil film 10 facing the sticking surface 5a, and is stuck and fixed on the sticking surface 5a, for example with a thermoplastic adhesive, what is called a hot melt. In this case, a bead back portion 5b which is a recess is formed on the sticking surface 5a. The bead back portion 5b constitutes the outside of the inner box 5 in the inner box bead 5c provided so as to protrude inward of the storage chamber 3, that is, the back side of the inner box bead 5c. For this reason, the bead back part 5b has comprised the concave shape opened toward the vacuum heat insulation panel 6, ie, the concave shape which the sticking surface 5a side opened. The bead back portion 5 b, that is, the inner box bead 5 c has a U-shaped cross section and a shape in which the lower side is slightly inclined upward toward the storage chamber 3. In this case, the vacuum heat insulation panel 6 is stuck on the sticking surface 5a so as to cover the bead back portion 5b. In addition, the mounting shelf 12 which can be removed is mounted in the inner-box bead 5c so that the inside of the storage chamber 3 may be divided up and down.

このように、真空断熱パネル６は、外袋体９のアルミ箔フィルム１０を、ビード裏部５ｂを有する貼付面５ａに対面させて設けられている。これにより、ビード裏部５ｂは、アルミ蒸着層１１ｂよりも厚い金属層となるアルミ箔層１０ｂを有したアルミ箔フィルム１０で覆われることになる。この場合、真空断熱パネル６は、アルミ箔フィルム１０の反対側の面、即ち、貼付面５ａの反対側の面にアルミ蒸着フィルム１１を有している。そして、耳部６ａは、アルミ蒸着フィルム１１側、即ち、貼付面５ａとは反対側に折り返されている。   Thus, the vacuum heat insulation panel 6 is provided so that the aluminum foil film 10 of the outer bag body 9 faces the sticking surface 5a having the bead back portion 5b. Thereby, bead back part 5b is covered with aluminum foil film 10 which has aluminum foil layer 10b used as a metal layer thicker than aluminum vapor deposition layer 11b. In this case, the vacuum heat insulation panel 6 has the aluminum vapor deposition film 11 on the surface on the opposite side of the aluminum foil film 10, that is, the surface on the opposite side of the sticking surface 5a. And the ear | edge part 6a is return | folded by the aluminum vapor deposition film 11 side, ie, the opposite side to the sticking surface 5a.

上記した第１実施形態によれば次のような作用効果を得ることができる。
本実施形態の構成によれば、断熱箱体２は、外箱４と内箱５の間に各壁面部に対応させた真空断熱パネルを有して構成されている。このうち、左右側壁部の真空断熱パネル６は、内箱５の左右側壁部の外側に位置する貼付面５ａに貼付けられている。この貼付面５ａには、貯蔵室３の内方に突出するようにして設けられた内箱ビード５ｃの裏側によって、真空断熱パネル６に向かって開口した凹状のビード裏部５ｂが形成されている。そして、真空断熱パネル６は、ビード裏部５ｂを覆うように配置されている。つまり、真空断熱パネル６は、外袋体９の一方の面に設けられたアルミ箔層１０ｂを含んで構成されるアルミ箔フィルム１０を、ビード裏部５ｂを有する貼付面５ａに面して貼付けられている。 According to the first embodiment described above, the following operational effects can be obtained.
According to the configuration of the present embodiment, the heat insulating box 2 has a vacuum heat insulating panel corresponding to each wall surface portion between the outer box 4 and the inner box 5. Among these, the vacuum heat insulation panel 6 of the right and left side wall part is affixed on the sticking surface 5a located outside the left and right side wall part of the inner box 5. A concave bead back portion 5b opened toward the vacuum heat insulating panel 6 is formed on the sticking surface 5a by the back side of the inner box bead 5c provided so as to protrude inward of the storage chamber 3. . And the vacuum heat insulation panel 6 is arrange | positioned so that the bead back part 5b may be covered. That is, the vacuum heat insulation panel 6 pastes the aluminum foil film 10 including the aluminum foil layer 10b provided on one surface of the outer bag body 9 so as to face the sticking surface 5a having the bead back portion 5b. It has been.

この構成によれば、ビード裏部５ｂに面しているアルミ箔フィルム１０のガスバリア層、即ち、金属層は、アルミ蒸着層１１ｂよりも厚く耐破袋性に優れるアルミ箔層１０ｂから構成されている。このため、真空断熱パネル６の取付け時や取付け後の振動などによって、ビード裏部５ｂ付近に局所的な負荷がかかった場合でも、外袋体９においてアルミ箔フィルム１０のガスバリア層を構成するアルミ箔層１０ｂの破損を極力防ぐことができる。これにより、外袋体９のガスバリア性能を維持、即ち、内部の減圧状態を維持するこができ、真空断熱パネル６の断熱性能を高い状態で維持することができる。   According to this configuration, the gas barrier layer of the aluminum foil film 10 facing the bead back portion 5b, that is, the metal layer is composed of the aluminum foil layer 10b that is thicker than the aluminum vapor deposition layer 11b and has excellent bag breaking resistance. Yes. Therefore, even when a local load is applied in the vicinity of the bead back portion 5b due to vibration or the like after the vacuum heat insulation panel 6 is attached, the aluminum constituting the gas barrier layer of the aluminum foil film 10 in the outer bag body 9 Damage to the foil layer 10b can be prevented as much as possible. Thereby, the gas barrier performance of the outer bag body 9 can be maintained, that is, the internal reduced pressure state can be maintained, and the heat insulating performance of the vacuum heat insulating panel 6 can be maintained in a high state.

そして、外袋体９は、アルミ箔フィルム１０とは反対側の面にアルミ蒸着層１１ｂを含むアルミ蒸着フィルム１１を有している。この構成によれば、外袋体９は、アルミ箔フィルム１０とは反対側の面、つまり、ビード裏部５ｂと面していないため局所的な負荷がかかり難く破袋の虞が少ない面を、アルミ箔層１０ｂよりも薄く熱伝導率の低いアルミ蒸着層１１ｂを有するアルミ蒸着フィルム１１としている。これにより、真空断熱パネル６の断熱性能をより向上させることができる。   And the outer bag body 9 has the aluminum vapor deposition film 11 containing the aluminum vapor deposition layer 11b in the surface on the opposite side to the aluminum foil film 10. FIG. According to this configuration, the outer bag body 9 has a surface on the side opposite to the aluminum foil film 10, that is, a surface on which the local load is unlikely to be applied because it does not face the bead back portion 5b, and there is less risk of bag breakage. The aluminum vapor deposition film 11 has an aluminum vapor deposition layer 11b which is thinner than the aluminum foil layer 10b and has a low thermal conductivity. Thereby, the heat insulation performance of the vacuum heat insulation panel 6 can be improved more.

ちなみに、貼付面５ａと真空断熱パネル６との接着が完全でないなどにより互いの密着性が良くないと、振動などの影響によって、真空断熱パネル６が貼付面５ａに対して相対的に動いてしまうことがある。この場合、真空断熱パネル６が貼付面５ａに接着されている部分と、接着されていない部分、即ち、ビード裏部５ｂに面している部分とでは、外袋体９表面の動きに差が生じる。この動きの差によって、外袋体９は、接着されている部分とされていない部分との境目において、引っ張りや圧縮などの局所的な負荷がかかり、こすれ合うなどして破袋され易いという事情がある。   Incidentally, if the adhesion between the affixing surface 5a and the vacuum heat insulating panel 6 is not perfect, for example, if the mutual adhesion is not good, the vacuum heat insulating panel 6 moves relative to the affixing surface 5a due to the influence of vibration or the like. Sometimes. In this case, there is a difference in the movement of the surface of the outer bag body 9 between the portion where the vacuum heat insulating panel 6 is bonded to the sticking surface 5a and the portion where the vacuum insulating panel 6 is not bonded, that is, the portion facing the bead back portion 5b. Arise. Due to this difference in movement, the outer bag body 9 is subject to local loads such as pulling and compression at the boundary between the bonded portion and the non-bonded portion, and is easily broken by rubbing. There is.

ここで、貼付面５ａと真空断熱パネル６との間に部分的に出っ張りなどの凹凸が存在すると、密着性が悪くなる原因となる。このため、本実施形態では、外袋体９が芯材８の周囲にはみ出す耳部６ａは、アルミ蒸着フィルム１１側、即ち、貼付面５ａとは反対側に折り返されて、テープなどでアルミ蒸着フィルム１１に固定されている。この構成によれば、貼付面５ａと真空断熱パネル６との間において、耳部６ａの厚みによる出っ張りを無くすことができる。これにより、貼付面５ａと真空断熱パネル６との密着性を向上し、局所的な負荷がかからないようにして外袋体９の破袋を防ぐことができる。この結果、振動などがかかったとしても、真空断熱パネル６の破損を極力防いで断熱性能を維持することができる。   Here, if unevenness such as a protrusion partially exists between the affixing surface 5a and the vacuum heat insulating panel 6, it causes the adhesion to deteriorate. For this reason, in this embodiment, the ear | edge part 6a which the outer bag body 9 protrudes to the circumference | surroundings of the core material 8 is return | folded to the aluminum vapor deposition film 11 side, ie, the opposite side to the sticking surface 5a, and aluminum vapor deposition is carried out with a tape etc. It is fixed to the film 11. According to this structure, the protrusion by the thickness of the ear | edge part 6a can be eliminated between the sticking surface 5a and the vacuum heat insulation panel 6. FIG. Thereby, the adhesiveness of the sticking surface 5a and the vacuum heat insulation panel 6 can be improved, and the bag breakage of the outer bag body 9 can be prevented without applying a local load. As a result, even if vibration is applied, it is possible to maintain the heat insulating performance by preventing the vacuum heat insulating panel 6 from being damaged as much as possible.

（第２実施形態）
第２実施形態では、ビード裏部５ｂに、真空断熱パネル６や内箱５とは別部品となる補助部材が設けられている点において、第１実施形態とは異なっている。
即ち、図４に示すように、ビード裏部５ｂには、補助部材たる補強部材１３が設けられている。この補強部材１３を設けることによって、内箱ビード５ｃの強度を増している。この補強部材１３は、内箱５よりも硬質の材料、例えばステンレスなどの金属板を曲げ加工して構成されている。具体的には、補強部材１３は、ビード裏部５ｂに沿って形成されたコ字形状１３ａを有するとともに、コ字形状１３ａの端部１３ｂから上下方向に延びるようにして鍔部１３ｃを有している。この場合、補強部材１３は、曲げ加工されて製作されるため、コ字形状１３ａの端部１３ｂ、即ち、コ字形状１３ａと鍔部１３ｃとの接続部分はＲ形状となっている。 (Second Embodiment)
The second embodiment is different from the first embodiment in that an auxiliary member that is a separate component from the vacuum heat insulating panel 6 and the inner box 5 is provided on the bead back portion 5b.
That is, as shown in FIG. 4, the bead back portion 5b is provided with a reinforcing member 13 as an auxiliary member. By providing this reinforcing member 13, the strength of the inner box bead 5c is increased. The reinforcing member 13 is configured by bending a material harder than the inner box 5, for example, a metal plate such as stainless steel. Specifically, the reinforcing member 13 has a U-shape 13a formed along the bead back portion 5b, and has a flange portion 13c extending in the vertical direction from the end portion 13b of the U-shape 13a. ing. In this case, since the reinforcing member 13 is manufactured by bending, the end portion 13b of the U-shape 13a, that is, the connection portion between the U-shape 13a and the flange portion 13c has an R shape.

また、内箱５には、ビード裏部５ｂの上下端部から上下方向に延びるようにして、鍔部１３ｃを収容するための浅い凹状の受部５ｄが形成されている。補強部材１３は、コ字形状１３ａがビード裏部５ｂに嵌り込んで固定されるとともに、上下の鍔部１３ｃが受部５ｄに収容されるようにして設けられている。この場合、補強部材１３は、内箱５の貼付面５ａから、真空断熱パネル６側に突出しないようにして収容される。これにより、内箱５の左右側壁部の外側と、鍔部１３ｃの外側面はほぼ同一面上となり、内箱５の壁面部の外側と鍔部１３ｃの外側面とにより貼付面５ａが構成されている。つまり、真空断熱パネル６は、内箱５の左右側壁部の外側と、鍔部１３ｃの外側面とに貼付けられて固定される。   Further, the inner box 5 is formed with a shallow concave receiving portion 5d for accommodating the flange portion 13c so as to extend in the vertical direction from the upper and lower end portions of the bead back portion 5b. The reinforcing member 13 is provided such that the U-shaped portion 13a is fitted and fixed to the bead back portion 5b, and the upper and lower flange portions 13c are accommodated in the receiving portion 5d. In this case, the reinforcing member 13 is accommodated so as not to protrude from the sticking surface 5a of the inner box 5 to the vacuum heat insulating panel 6 side. Thereby, the outer side of the left and right side wall portions of the inner box 5 and the outer surface of the flange portion 13c are substantially on the same plane, and the bonding surface 5a is constituted by the outer side of the wall surface portion of the inner box 5 and the outer surface of the flange portion 13c. ing. That is, the vacuum heat insulation panel 6 is affixed and fixed to the outer side of the left and right side wall portions of the inner box 5 and the outer side surface of the flange portion 13c.

このような第２実施形態の構成によれば、外袋体９のアルミ箔フィルム１０は、補強部材１３を有する貼付面５ａに面して設けられている。このため、ビード裏部５ｂに、内箱ビード５ｃの補強のための補強部材１３、つまり、内箱５よりも硬質の材料からなる補強部材１３が設けられた場合であっても、アルミ箔層１０ｂにより外袋体９の破袋を極力防ぐことができる。また、補強部材１３は、ビード裏部５ｂと受部５ｄにおいて、貼付面５ａから真空断熱パネル６側に突出しないようにして設けられている。このため、補強部材１３、特には端部１３ｂや鍔部１３ｃと、真空断熱パネル６とがこすれて、真空断熱パネル６の外袋体９が破袋する虞を少なくすることができる。   According to such a configuration of the second embodiment, the aluminum foil film 10 of the outer bag body 9 is provided to face the sticking surface 5 a having the reinforcing member 13. For this reason, even when the reinforcing member 13 for reinforcing the inner bead 5c, that is, the reinforcing member 13 made of a material harder than the inner box 5 is provided on the bead back portion 5b, the aluminum foil layer 10b can prevent the outer bag body 9 from being broken as much as possible. Further, the reinforcing member 13 is provided in the bead back portion 5b and the receiving portion 5d so as not to protrude from the sticking surface 5a to the vacuum heat insulating panel 6 side. For this reason, the reinforcement member 13, especially the edge part 13b, the collar part 13c, and the vacuum heat insulation panel 6 can be rubbed, and the possibility that the outer bag body 9 of the vacuum heat insulation panel 6 may break can be reduced.

また、真空断熱パネル６は、鍔部１３ｃの外側にも貼付けられている。そして、鍔部１３ｃとコ字形状１３ａとは端部１３ｂでＲ形状に接続されている。このため、真空断熱パネル６について局所的な負荷がかかりやすい箇所、つまり、真空断熱パネル６が貼付面５ａに接着されている部分とされていない部分との境目となる端部１３ｂは、丸みを帯びたＲ形状となっている。これにより、外袋体９と、補強部材１３の鋭利な部分がこすれることがなく、外袋体９が破袋することを極力防止することができる。   Moreover, the vacuum heat insulation panel 6 is affixed also on the outer side of the collar part 13c. And the collar part 13c and the U-shape 13a are connected to the R shape by the edge part 13b. For this reason, the part 13b which becomes a boundary with the part which is easy to apply a local load about the vacuum heat insulation panel 6, ie, the part with which the vacuum heat insulation panel 6 is adhere | attached on the sticking surface 5a, is rounded. It has a rounded R shape. Thereby, the outer bag body 9 and the sharp part of the reinforcing member 13 are not rubbed, and the outer bag body 9 can be prevented from breaking as much as possible.

ちなみに、コ字形状１３ａの上下方向の外側寸法は、ビード裏部５ｂの上下方向の内側寸法よりも若干大きく設定されている。つまり、補強部材１３は、コ字形状１３ａがビード裏部５ｂに対してしめしろを有して嵌合されている。これにより、補強部材１３は、接着材やボルトなどの固定手段を用いなくても、内箱５にしっかりと固定される。さらに、コ字形状１３ａの水平方向の外側寸法は、ビード裏部５ｂの深さ寸法よりも短く設定されている。このため、コ字形状１３ａをビード裏部５ｂの奥までしっかりと嵌め込むことができ、補強部材１３が貼付面５ａから真空断熱パネル６側に突出することを防ぐことができる。   Incidentally, the outer dimension in the vertical direction of the U-shaped 13a is set to be slightly larger than the inner dimension in the vertical direction of the bead back portion 5b. That is, the reinforcing member 13 is fitted with the U-shaped 13a having an interference with the bead back portion 5b. Thereby, the reinforcing member 13 is firmly fixed to the inner box 5 without using fixing means such as an adhesive or a bolt. Further, the horizontal outer dimension of the U-shaped 13a is set shorter than the depth dimension of the bead back portion 5b. For this reason, the U-shape 13a can be firmly fitted to the back of the bead back portion 5b, and the reinforcing member 13 can be prevented from protruding from the affixing surface 5a to the vacuum heat insulating panel 6 side.

（第３実施形態）
第３実施形態では、ビード裏部５ｂに、該ビード裏部５ｂを埋めるようにして補助部材が設けられている点において、第１、第２実施形態とは異なっている。
即ち、図５に示すように、ビード裏部５ｂには、補助部材たる埋込部材１４が設けられている。この埋込部材１４は、例えば発泡スチロールなどの合成樹脂から構成され、ビード裏部５ｂとほぼ同形状に形成されて該ビード裏部５ｂに埋め込まれるようにして設けられている。そして、埋込部材１４の外側面、即ち、真空断熱パネル６側の面は、内箱５の左右側壁部の外側とほぼ同一面上となり、これら埋込部材１４の外側面と内箱５の側壁部の外側とにより貼付面５ａが構成されている。 (Third embodiment)
The third embodiment is different from the first and second embodiments in that an auxiliary member is provided on the bead back portion 5b so as to fill the bead back portion 5b.
That is, as shown in FIG. 5, the bead back portion 5b is provided with an embedded member 14 as an auxiliary member. The embedding member 14 is made of, for example, a synthetic resin such as styrene foam, and is formed so as to have substantially the same shape as the bead back portion 5b and is embedded in the bead back portion 5b. The outer surface of the embedded member 14, that is, the surface on the vacuum heat insulating panel 6 side is substantially flush with the outer sides of the left and right side wall portions of the inner box 5, and the outer surface of the embedded member 14 and the inner box 5 A pasting surface 5a is constituted by the outside of the side wall portion.

このような第３実施形態の構成によれば、埋込部材１４によってビード裏部５ｂを埋められている。このため、真空断熱パネル６には、貼付面５ａに対して接着されている部分とされていない部分との境目が無くなり、局所的な負荷がかかり難くなる。これにより、振動などによる外袋体９の破袋を防ぐことができ、真空断熱パネル６の断熱性能を維持することができる。また、埋込部材１４によってビード裏部５ｂが埋められることで、真空断熱パネル６が貼付けられる貼付面５ａの面積を増やすことができる。これにより、振動などによる、真空断熱パネル６のずれや剥がれを防ぐことができ、真空断熱パネル６の信頼性を向上させることができる。   According to the configuration of the third embodiment as described above, the bead back portion 5 b is filled with the embedded member 14. For this reason, the vacuum heat insulation panel 6 has no boundary between the part bonded to the pasting surface 5a and the part that is not, and it is difficult to apply a local load. Thereby, the bag breaking of the outer bag body 9 by vibration etc. can be prevented, and the heat insulation performance of the vacuum heat insulation panel 6 can be maintained. Moreover, the area of the sticking surface 5a to which the vacuum heat insulation panel 6 is stuck can be increased by filling the bead back part 5b with the embedding member 14. Thereby, the shift | offset | difference and peeling of the vacuum heat insulation panel 6 by vibration etc. can be prevented, and the reliability of the vacuum heat insulation panel 6 can be improved.

（第４実施形態）
第４実施形態では、ビード裏部５ｂに、該ビード裏部５ｂを覆うようにして覆い部材が設けられている点において、第１〜第３実施形態とは異なっている。
即ち、図６に示すように、貼付面５ａには、ビード裏部５ｂを覆うようして覆い部材たる薄板１５が設けられている。この薄板１５は、例えばアルミなどの金属、又は強化プラスチックなど剛性を有する薄板で構成され、真空断熱パネル６よりもやや大きいサイズに設定されている。つまり、真空断熱パネル６は、薄板１５を介して貼付面５ａに貼付けられている。 (Fourth embodiment)
The fourth embodiment is different from the first to third embodiments in that a cover member is provided on the bead back portion 5b so as to cover the bead back portion 5b.
That is, as shown in FIG. 6, the sticking surface 5a is provided with a thin plate 15 as a covering member so as to cover the bead back portion 5b. The thin plate 15 is formed of a rigid thin plate such as a metal such as aluminum or reinforced plastic, and is set to a size slightly larger than the vacuum heat insulating panel 6. That is, the vacuum heat insulation panel 6 is affixed to the affixing surface 5 a via the thin plate 15.

この構成によれば、真空断熱パネル６は、ビード裏部５ｂを覆うようにして設けられた薄板１５を介して、貼付面５ａに貼付けられている。このため、真空断熱パネル６には、貼付面５ａに対して接着されている部分とされていない部分との境目が無くなり、局所的な負荷がかかり難くなる。これにより、振動などによる外袋体９の破袋を防ぐことができ、真空断熱パネル６の断熱性能を維持することができる。また、真空断熱パネル６が貼付けられる面積を増やすことができるため、真空断熱パネル６のずれや剥がれを防ぐことができ、真空断熱パネル６の信頼性をさらに向上させることができる。
なお、覆い部材は、金属や強化プラスチックの薄板を、ビード裏部５ｂを覆う程度に部分的に設ける構成としても良い。また、覆い部材は、薄板に限らず、金属や樹脂などの非延性テープとしてもよい。さらには、非延性のテープに両面接着テープを用いれば、ホットメルトなどの接着剤を使用せずに真空断熱パネル６を貼付けることができる。 According to this structure, the vacuum heat insulation panel 6 is affixed on the sticking surface 5a via the thin plate 15 provided so that the bead back part 5b may be covered. For this reason, the vacuum heat insulation panel 6 has no boundary between the part bonded to the pasting surface 5a and the part that is not, and it is difficult to apply a local load. Thereby, the bag breaking of the outer bag body 9 by vibration etc. can be prevented, and the heat insulation performance of the vacuum heat insulation panel 6 can be maintained. Moreover, since the area where the vacuum heat insulation panel 6 is affixed can be increased, the shift | offset | difference and peeling of the vacuum heat insulation panel 6 can be prevented, and the reliability of the vacuum heat insulation panel 6 can further be improved.
Note that the covering member may be configured such that a thin plate of metal or reinforced plastic is partially provided so as to cover the bead back portion 5b. The covering member is not limited to a thin plate, and may be a non-ductile tape such as metal or resin. Furthermore, if a double-sided adhesive tape is used for the non-ductile tape, the vacuum insulation panel 6 can be attached without using an adhesive such as hot melt.

以上のように、上記各実施形態の冷蔵庫によれば、外箱と内箱との間に真空断熱パネルが設けられ、外箱と内箱のうち一方の壁部は、真空断熱パネルに向かって開口した凹部を有するとともに、この凹部を覆うようにして真空断熱パネルが貼付けられる貼付面とされている。そして、この真空断熱パネルは、一方の面に耐破袋性に優れる金属箔層を含む第１のフィルムを有し、この第１のフィルムを貼付面に面して設けられている。   As described above, according to the refrigerator of each of the above embodiments, the vacuum heat insulation panel is provided between the outer box and the inner box, and one wall portion of the outer box and the inner box faces the vacuum heat insulation panel. While having the open recessed part, it is set as the sticking surface on which a vacuum heat insulation panel is stuck so that this recessed part may be covered. And this vacuum heat insulation panel has the 1st film containing the metal foil layer which is excellent in bag-proofing property on one side, and this 1st film is provided facing the sticking surface.

この構成によれば、真空断熱パネルの取付けや取付け後の振動などによって、凹部付近に局所的な負荷がかかった場合でも、凹部に面する第１のフィルムのガスバリア層は耐破袋性に優れる金属箔層であるため、袋体は破損し難くい。これにより、凹部を有する面に真空断熱パネルが貼付けられる場合であっても、袋体のガスバリア性能を維持、即ち、内部の減圧状態を維持することができ、真空断熱パネルの断熱性能を維持することができる。   According to this configuration, even when a local load is applied in the vicinity of the concave portion due to attachment of the vacuum heat insulating panel or vibration after the attachment, the gas barrier layer of the first film facing the concave portion is excellent in bag breaking resistance. Since it is a metal foil layer, the bag body is hardly damaged. Thereby, even if it is a case where a vacuum heat insulation panel is affixed on the surface which has a recessed part, the gas barrier performance of a bag body can be maintained, ie, an internal pressure reduction state can be maintained, and the heat insulation performance of a vacuum heat insulation panel is maintained. be able to.

なお、ビード裏部５ｂに設けられる補助部材は、補強部材１３や埋込部材１４のように補強の目的のものに限らず、部品を固定する目的のものでも良い。
さらに、金属箔層をアルミ箔層１０ｂとし、金属蒸着層をアルミ蒸着層１１ｂとしているが、金属箔層及び金属蒸着層に用いる金属はアルミニウムに限られず、例えば酸化アルミニウムや、チタン、又は酸化チタンなどを用いることもできる。 In addition, the auxiliary member provided in the bead back portion 5b is not limited to the purpose of reinforcement like the reinforcing member 13 and the embedded member 14, but may be the purpose of fixing components.
Furthermore, although the metal foil layer is the aluminum foil layer 10b and the metal vapor deposition layer is the aluminum vapor deposition layer 11b, the metal used for the metal foil layer and the metal vapor deposition layer is not limited to aluminum. For example, aluminum oxide, titanium, or titanium oxide Etc. can also be used.

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。   Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

図面中、１は冷蔵庫本体、４は外箱、５は内箱、５ａは貼付面、５ｂはビード裏部（凹部）、６、７は真空断熱パネル、６ａは耳部、８は芯材、９は外袋体（袋体）、１０はアルミ箔フィルム（第１のフィルム）、１０ｂはアルミ箔層（金属箔層）、１１はアルミ蒸着フィルム（第２のフィルム）、１１ｂはアルミ蒸着層（金属蒸着層）、１３は補強部材（補助部材）、１４は埋込部材（補助部材）、１５は薄板（覆い部材）を示す。   In the drawings, 1 is a refrigerator body, 4 is an outer box, 5 is an inner box, 5a is a sticking surface, 5b is a bead back (recessed portion), 6 and 7 are vacuum insulation panels, 6a is an ear portion, and 8 is a core material. 9 is an outer bag (bag), 10 is an aluminum foil film (first film), 10b is an aluminum foil layer (metal foil layer), 11 is an aluminum vapor deposition film (second film), and 11b is an aluminum vapor deposition layer. (Metal vapor deposition layer), 13 is a reinforcing member (auxiliary member), 14 is an embedded member (auxiliary member), and 15 is a thin plate (covering member).

Claims (7)

外箱と、
前記外箱の内部に収容される内箱と、
前記外箱と前記内箱との間に設けられる真空断熱パネルと、を備え、
前記外箱と前記内箱のうち一方の壁部は、前記真空断熱パネルに向かって開口した凹部を有するとともに該凹部を覆うようにして前記真空断熱パネルが貼付けられる貼付面とされ、
前記真空断熱パネルは、芯材が袋体に収容されて該袋体の内部が減圧密封されて構成され、
前記袋体は、一方の面にガスバリア性を有する金属箔層を含んで構成される第１のフィルムを有し、
前記真空断熱パネルは、前記第１のフィルムを前記貼付面に面して設けられていることを特徴とする冷蔵庫。 An outer box,
An inner box housed inside the outer box;
A vacuum insulation panel provided between the outer box and the inner box,
One wall portion of the outer box and the inner box has a recess opened toward the vacuum heat insulation panel and is a sticking surface to which the vacuum heat insulation panel is attached so as to cover the recess,
The vacuum heat insulation panel is configured such that the core material is housed in a bag body and the inside of the bag body is sealed under reduced pressure,
The bag body has a first film configured to include a metal foil layer having gas barrier properties on one surface,
The said vacuum heat insulation panel is provided with the said 1st film facing the said sticking surface, The refrigerator characterized by the above-mentioned. 前記袋体は、前記第１のフィルムとは反対側の面にガスバリア性を有する金属蒸着層を含んで構成される第２のフィルムを有していることを特徴とする請求項１記載の冷蔵庫。   2. The refrigerator according to claim 1, wherein the bag body includes a second film configured to include a metal vapor deposition layer having a gas barrier property on a surface opposite to the first film. 3. . 前記真空断熱パネルは、前記袋体が前記芯材の周囲にはみ出す耳部を有し、該耳部は、前記貼付面とは反対側に折り返されていることを特徴とする請求項１又は２記載の冷蔵庫。   The said vacuum heat insulation panel has an ear | edge part which the said bag body protrudes around the said core material, This ear | edge part is turned up on the opposite side to the said sticking surface. The refrigerator described. 前記凹部には、補助部材が設けられていることを特徴とする請求項１から３いずれか一項記載の冷蔵庫。   The refrigerator according to any one of claims 1 to 3, wherein an auxiliary member is provided in the recess. 前記補助部材は、前記貼付面から前記真空断熱パネル側に突出しないようにして設けられていることを特徴とする請求項４記載の冷蔵庫。   The refrigerator according to claim 4, wherein the auxiliary member is provided so as not to protrude from the sticking surface toward the vacuum heat insulation panel. 前記補助部材は、前記凹部を埋めて前記貼付面の一部を構成していることを特徴とする請求項４又は５記載の冷蔵庫。   The refrigerator according to claim 4 or 5, wherein the auxiliary member forms part of the pasting surface by filling the concave portion. 前記貼付面には、前記凹部を覆うようにして覆い部材が設けられていることを特徴とする請求項１から６いずれか一項記載の冷蔵庫。   The refrigerator according to any one of claims 1 to 6, wherein a covering member is provided on the sticking surface so as to cover the concave portion.
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