JP2014206369A - Refrigerator - Google Patents

Refrigerator Download PDF

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JP2014206369A
JP2014206369A JP2014108144A JP2014108144A JP2014206369A JP 2014206369 A JP2014206369 A JP 2014206369A JP 2014108144 A JP2014108144 A JP 2014108144A JP 2014108144 A JP2014108144 A JP 2014108144A JP 2014206369 A JP2014206369 A JP 2014206369A
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heat insulation
box
vacuum heat
refrigerator
heat insulating
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JP5833182B2 (en
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佐伯　友康
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 Lifestyle Products and Services Corp
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Abstract

PROBLEM TO BE SOLVED: To improve the heat insulation performance of a refrigerator main body and realize the configuration relatively easily.SOLUTION: A refrigerator comprises a refrigerator main body constituted to arrange a box-shaped heat insulation wall body between an inner box 3 and an outer box 2. The box-shaped heat insulation body is configured by a combination of two or more vacuum heat insulation panels 9, and includes: a separation part 27 provided in a joint portion between the two adjacent vacuum heat insulation panels 9; and connection means provided to penetrate an inside and an outside of a refrigerator main body. The connection means is arranged in the separation part 27, the foam heat insulation means is provided in the separation part 27, and the vacuum heat insulation panels 9 and the foam heat insulation means are provided to be superimposed in inward and outward directions.

Description

本発明は、真空断熱パネルを冷蔵庫本体の断熱壁として使用するように構成された冷蔵庫に関する。   The present invention relates to a refrigerator configured to use a vacuum heat insulating panel as a heat insulating wall of a refrigerator body.

この種の冷蔵庫の一例が特許文献１に記載されている。この冷蔵庫では、内箱と外箱との間の空間部に真空断熱パネルを配設すると共に、ウレタンフォームを充填している。即ち、冷蔵庫本体の断熱壁を真空断熱パネルとウレタンフォームを併用して構成している。   An example of this type of refrigerator is described in Patent Document 1. In this refrigerator, a vacuum heat insulation panel is disposed in a space between the inner box and the outer box, and urethane foam is filled. That is, the heat insulating wall of the refrigerator main body is configured by using both the vacuum heat insulating panel and the urethane foam.

特開２００２−９００４８号公報Japanese Patent Laid-Open No. 2002-90048

上記構成の場合、真空断熱パネルとウレタンフォームを併用するので、ウレタンフォーム部分の断熱性能が劣るので、真空断熱パネルを使用しているにもかかわらず、期待するほど断熱性能を高くすることができなかった。例えば、断熱性能が劣るウレタンフォーム部分の断熱壁の厚み寸法を厚くしなければならないため、断熱壁全体の厚み寸法が厚くなってしまうという問題点があった。しかし、冷蔵庫本体の断熱壁を真空断熱パネルだけで構成しようとしても、断熱壁の形状が複雑であるのに対して、真空断熱パネルはほぼ矩形状のパネル程度しか製造できないため、その実現はかなり困難であった。特に、冷蔵庫本体の庫内と庫外を貫通するように配設する接続手段、例えば電気配線、排水経路、または、冷凍サイクルの冷媒パイプ等を、従来構成では、ウレタンフォーム中に埋設していたが、これらの部品を真空断熱パネルだけで構成する断熱壁体に対してどのように配設するかが課題となっており、実現はかなり困難であった。   In the case of the above configuration, since the vacuum insulation panel and urethane foam are used in combination, the insulation performance of the urethane foam part is inferior, so even though the vacuum insulation panel is used, the insulation performance can be increased as expected. There wasn't. For example, since the thickness dimension of the heat insulation wall of the urethane foam part which is inferior in heat insulation performance has to be increased, there has been a problem that the thickness dimension of the entire heat insulation wall is increased. However, even if the heat insulation wall of the refrigerator body is configured only by the vacuum heat insulation panel, the shape of the heat insulation wall is complicated, but the vacuum heat insulation panel can only be manufactured to be almost a rectangular panel, so its realization is quite It was difficult. In particular, connecting means arranged so as to penetrate the inside and outside of the refrigerator main body, such as electrical wiring, drainage paths, or refrigerant pipes for refrigeration cycles, etc. have been embedded in urethane foam in the conventional configuration. However, how to arrange these parts with respect to the heat insulating wall constituted only by the vacuum heat insulating panel has been a problem, and it has been quite difficult to realize.

本発明の目的は、冷蔵庫本体の断熱性能を高くすることができ、また、その構成を比較的容易に実現することができる冷蔵庫を提供することにある。   The objective of this invention is providing the refrigerator which can make the heat insulation performance of a refrigerator main body high, and can implement | achieve the structure comparatively easily.

本発明の冷蔵庫は、内箱と外箱との間に箱状断熱壁体を挟むように配置して構成された冷蔵庫本体を備えてなる冷蔵庫において、前記箱状断熱壁体を、２枚以上の真空断熱パネルを組み合わせて構成し、前記各真空断熱パネルの外面及び内面に前記外箱及び前記内箱を接着し、隣接する２枚の真空断熱パネルを接合させるに際して両者が近接するように配置し、そして、接続手段と、隣接する２枚の真空断熱パネルの接合部分に前記接続手段を配置するように設けられた離間部とを備え、前記箱状断熱壁体のうちの前記離間部に対応する部分には、前記真空断熱パネルと発泡断熱手段とを内外方向に重ねて配設するように構成したところに特徴を有する。   The refrigerator of the present invention is a refrigerator comprising a refrigerator main body that is configured so as to sandwich a box-like heat insulation wall between an inner box and an outer box. These vacuum heat insulation panels are combined, and the outer box and the inner box are bonded to the outer and inner surfaces of each vacuum heat insulation panel, and the two adjacent vacuum heat insulation panels are joined so that they are close to each other. And a connecting means and a separating portion provided so as to dispose the connecting means at a joint portion between two adjacent vacuum heat insulating panels, and the separating portion of the box-shaped heat insulating wall body includes The corresponding part is characterized in that the vacuum heat insulation panel and the foam heat insulation means are arranged so as to overlap in the inner and outer directions.

本発明の冷蔵庫によれば、箱状断熱壁体を、２枚以上の真空断熱パネルを組み合わせて構成したので、冷蔵庫本体の断熱性能を高くすることができる。そして、隣接する２枚の真空断熱パネルの接合部分に接続手段を配置するように設けられた離間部を備え、箱状断熱壁体のうちの離間部に対応する部分には、真空断熱パネルと発泡断熱手段とを内外方向に重ねて配設するように構成したので、上記構成を比較的容易に実現することができる。   According to the refrigerator of this invention, since the box-shaped heat insulation wall body was comprised combining the 2 or more vacuum heat insulation panel, the heat insulation performance of a refrigerator main body can be made high. And it is equipped with the separation part provided so that a connection means may be arranged in the joined part of two adjacent vacuum insulation panels, and in the part corresponding to the separation part of the box-shaped insulation wall, a vacuum insulation panel and Since the foam heat insulating means is arranged so as to overlap in the inner and outer directions, the above structure can be realized relatively easily.

本発明の第１実施形態を示す冷蔵庫本体の斜視図The perspective view of the refrigerator main body which shows 1st Embodiment of this invention. 冷蔵庫本体の部分断面図Partial sectional view of the refrigerator body 箱状断熱壁体の斜視図Perspective view of box-shaped insulation wall 箱状断熱壁体の分解斜視図Exploded perspective view of box-shaped insulation wall 真空断熱パネルの部分断面図Partial sectional view of vacuum insulation panel 冷蔵庫の下部の縦断側面図Vertical side view of the bottom of the refrigerator 冷蔵庫の機械室の背面側からみた部分斜視図Partial perspective view seen from the rear side of the machine room of the refrigerator 箱状断熱壁体の下部の背面側からみた部分斜視図Partial perspective view seen from the back side of the lower part of the box-shaped insulation wall 離間部にウレタンフォームを配設した図８相当図Equivalent to FIG. 8 with urethane foam disposed in the spacing 冷蔵庫本体の庫内側の下部の分解斜視図Disassembled perspective view of the lower part inside the refrigerator body 冷蔵庫本体の庫内側の下部の斜視図Perspective view of the lower part inside the refrigerator body 冷蔵庫本体のうちの冷媒パイプの熱交換部を配設した部分の縦断側面図Longitudinal side view of the part of the refrigerator body where the heat exchange part of the refrigerant pipe is arranged 断熱材と冷媒パイプの熱交換部を示す分解斜視図Exploded perspective view showing heat exchange part of heat insulating material and refrigerant pipe 断熱材で冷媒パイプの熱交換部を覆った状態を示す斜視図The perspective view which shows the state which covered the heat exchange part of the refrigerant | coolant pipe with the heat insulating material. 冷蔵庫本体のうちの排水経路を配設した部分の縦断側面図Longitudinal side view of the part of the refrigerator body where the drainage path is arranged 本発明の第２実施形態を示す図１２相当図FIG. 12 equivalent view showing a second embodiment of the present invention. 図１０相当図Fig. 10 equivalent 本発明の第３実施形態を示す図１２相当図FIG. 12 equivalent view showing the third embodiment of the present invention 本発明の第４実施形態を示す図１５相当図FIG. 15 equivalent view showing the fourth embodiment of the present invention. 本発明の第５実施形態を示す図１９相当図FIG. 19 equivalent diagram showing the fifth embodiment of the present invention. 本発明の第６実施形態を示す図８相当図FIG. 8 equivalent view showing the sixth embodiment of the present invention 図９相当図Fig. 9 equivalent 真空断熱パネルの上面図Top view of vacuum insulation panel 本発明の第７実施形態を示す図４相当図FIG. 4 equivalent diagram showing a seventh embodiment of the present invention

以下、本発明の第１実施形態について、図１ないし図１６を参照して説明する。まず、図１は本実施形態の冷蔵庫本体１の全体構成を概略的に示す斜視図、図２は冷蔵庫本体１の部分縦断面図である。冷蔵庫本体１は、金属板（鋼板やＳＵＳ板等）製の外箱２と、樹脂製の内箱３と、これら内箱３と外箱２との間に挟むように配置された箱状断熱壁体４とから構成されている。   Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 is a perspective view schematically showing the overall configuration of the refrigerator main body 1 of the present embodiment, and FIG. 2 is a partial longitudinal sectional view of the refrigerator main body 1. The refrigerator body 1 includes a metal plate (steel plate, SUS plate, etc.) outer box 2, a resin inner box 3, and a box-shaped heat insulation disposed so as to be sandwiched between the inner box 3 and the outer box 2. It is comprised from the wall 4.

図３は、箱状断熱壁体４単体の全体構成を示す斜視図である。この箱状断熱壁体４は、図４にも示すように、２枚以上である例えば５枚の真空断熱パネル５、６、７、８、９を組み合わせて構成されている。各真空断熱パネル５〜９は、ほぼ矩形板状に形成されており、その厚み寸法は例えば１０〜２０ｍｍ程度である。尚、真空断熱パネル５、６の形状は下端部後部が斜めにカットされたほぼ台形状になっており、真空断熱パネル９の形状は中間部でほぼ「く」字状に折れ曲がった形状になっている。   FIG. 3 is a perspective view showing the overall configuration of the box-shaped heat insulating wall 4 alone. As shown in FIG. 4, the box-shaped heat insulating wall 4 is configured by combining two or more vacuum heat insulating panels 5, 6, 7, 8, 9, for example. Each vacuum heat insulation panel 5-9 is formed in the substantially rectangular plate shape, The thickness dimension is about 10-20 mm, for example. The shape of the vacuum heat insulating panels 5 and 6 is substantially trapezoidal with the rear end of the lower end portion being obliquely cut, and the shape of the vacuum heat insulating panel 9 is substantially bent into a "<" shape at the middle portion. ing.

上記５枚の真空断熱パネル５〜９を箱状に組み立てるに際しては、各真空断熱パネル５〜９の外面及び内面に、予め外箱２及び内箱３を接着剤を介して接着しておく。この場合、外箱２及び内箱３は、真空断熱パネル５〜９の大きさよりも少し大きい程度の大きさに形成されており、その上下左右の端部には、真空断熱パネル５〜９を連結するための連結片部や真空断熱パネル５〜９の端面部を覆うカバー片部等が形成されている。   When assembling the five vacuum heat insulating panels 5 to 9 in a box shape, the outer box 2 and the inner box 3 are previously bonded to the outer and inner surfaces of the vacuum heat insulating panels 5 to 9 via an adhesive. In this case, the outer box 2 and the inner box 3 are formed in a size slightly larger than the size of the vacuum heat insulation panels 5 to 9, and the vacuum heat insulation panels 5 to 9 are provided at the upper, lower, left and right ends thereof. A connecting piece for connecting, a cover piece covering the end face portions of the vacuum heat insulating panels 5 to 9 and the like are formed.

例えば、図２に示すように、２枚の真空断熱パネル５、７を連結する際には、真空断熱パネル５の外箱２の上端部の連結片部２ａと真空断熱パネル５の外箱２の左端部の連結片部２ｂとをねじや溶接等により連結すると共に、真空断熱パネル５の内箱３の上端部の連結片部３ａと、真空断熱パネル５の内箱３の左端部の連結片部３ｂとをねじや溶接等により連結する。そして、５枚の真空断熱パネル５〜９を、ほぼ同様にして、連結することにより、図１に示す冷蔵庫本体１を製造する。尚、図２において、２枚の真空断熱パネル５、７の合せ部（即ち、接合部分）に生ずる空間部１０については、この空間部１０の体積ができるだけ小さくなるように、即ち、真空断熱パネル５、７ができるだけ近接するように、両パネル５、７の大きさ及び配置を設計することが好ましい。また、上記空間部１０には、ウレタンフォーム等の断熱材（図示しない）を充填することが好ましい。   For example, as shown in FIG. 2, when two vacuum heat insulating panels 5 and 7 are connected, the connecting piece 2 a at the upper end of the outer box 2 of the vacuum heat insulating panel 5 and the outer box 2 of the vacuum heat insulating panel 5. The connection piece 2b at the left end of the vacuum heat insulation panel 5 is connected by screws, welding or the like, and the connection piece 3a at the upper end of the inner box 3 of the vacuum heat insulation panel 5 is connected to the left end of the inner case 3 of the vacuum heat insulation panel 5. The piece 3b is connected by screws or welding. And the refrigerator main body 1 shown in FIG. 1 is manufactured by connecting the five vacuum heat insulation panels 5-9 in a similar manner. In FIG. 2, the space portion 10 formed in the joining portion (that is, the joint portion) of the two vacuum heat insulation panels 5 and 7 is made so that the volume of the space portion 10 becomes as small as possible, that is, the vacuum heat insulation panel. It is preferable to design the size and arrangement of both panels 5 and 7 so that 5 and 7 are as close as possible. The space 10 is preferably filled with a heat insulating material (not shown) such as urethane foam.

ここで、真空断熱パネル５〜９の具体的構成について、図５を参照して、簡単に説明する。真空断熱パネル５〜９は、心材１１と、熱溶着用のプラスチック層を有すると共にガスバリア性を有する金属箔ラミネートフィルム等から成る外包材１２とから構成されている。上記心材１１は、無機繊維の積層体１３と、内袋１４とから構成されている。上記内袋１４は、例えば厚さ２０μｍの材質ポリエチレンフィル等の合成樹脂フィルムから成る袋で構成されている。無機繊維の積層体１３には、グラスウール、グラスファイバー、アルミナ繊維、シリカアルミナ繊維或いは本綿等の天然繊維が用いられている。心材１１は、ロール状で厚さ１００ｍｍ〜１５０ｍｍに予め作られた無機繊維の積層体１３を設定寸法にカットし、２つ折或いは３つ折りして内袋１４（肉厚２０μｍ前後のポリエチレン製の合成樹脂フィルム）内に収納した後、その無機繊維の積層体をプレス機等を使って、圧縮し、次いで内袋１４内を減圧し、次いで熱溶着機を使って内袋１４の開口部を熱溶着密封して作られている。尚、上記無機繊維の積層体２０は、圧縮工程（減圧工程）前の原綿の状態では厚み寸法が例えば２００〜３００ｍｍあったものが、圧縮（減圧）工程により、例えば８〜１５ｍｍ程度に圧縮される。   Here, a specific configuration of the vacuum heat insulation panels 5 to 9 will be briefly described with reference to FIG. The vacuum heat insulation panels 5-9 are comprised from the core material 11 and the outer packaging material 12 which consists of a metal foil laminated film etc. which have a gas barrier property while having a plastic layer for heat welding. The core 11 is composed of an inorganic fiber laminate 13 and an inner bag 14. The inner bag 14 is formed of a bag made of a synthetic resin film such as a polyethylene film having a thickness of 20 μm, for example. The inorganic fiber laminate 13 is made of natural fibers such as glass wool, glass fiber, alumina fiber, silica alumina fiber, or cotton. The core material 11 is a roll-shaped inorganic fiber laminate 13 made in advance with a thickness of 100 mm to 150 mm, cut into set dimensions, folded in two or three, and the inner bag 14 (polyethylene synthetic resin with a thickness of around 20 μm). After being stored in the resin film), the inorganic fiber laminate is compressed using a press or the like, then the inner bag 14 is depressurized, and then the opening of the inner bag 14 is heated using a heat welding machine. Made by welding and sealing. In addition, as for the laminated body 20 of the said inorganic fiber, what was 200-300 mm in thickness dimension in the state of the raw cotton before a compression process (decompression process) is compressed by about 8-15 mm by a compression (decompression) process, for example. The

上記した構成の心材１１を外包材１２（金属箔ラミネートフィルム）内に収納し、外包材１２内を減圧して溶着密封すると、図７（ａ）に示す構成となる。尚、上記外包材１２は、プラスチック−金属箔ラミネートフィルムで構成されており、外包材１２の開口部を溶着、密封する際には、このプラスチック部を溶して溶着する。   When the core material 11 having the above-described configuration is accommodated in the outer packaging material 12 (metal foil laminate film), and the inner packaging material 12 is decompressed and welded and sealed, the configuration shown in FIG. 7A is obtained. The outer packaging material 12 is composed of a plastic-metal foil laminate film. When the opening of the outer packaging material 12 is welded and sealed, the plastic portion is melted and welded.

このようにして作られた真空断熱パネル５〜９は、最後に内袋１４の耳部１４ａを含む耳部１２ａが例えば図５（ｂ）に示すように耳部の根元を基点として上面側に折り込まれテープ等（図示せず）で固定される。この場合、芯材１１の端部が丸みをおびていることより、その丸みに沿って上記耳部１２ａが折り込まれ、耳部１２ａと外包材１２との間に対流空間を作ることなく折り込める。これにより、真空断熱パネル５〜９の外包材１２のもつ金属部（バリア層）を通して伝導される熱移動に従来プラスされていた熱の対流空間の形成を最小限に押えられる。   In the vacuum heat insulating panels 5 to 9 made in this way, the ear part 12a including the ear part 14a of the inner bag 14 is finally placed on the upper surface side with the root of the ear part as a base point as shown in FIG. It is folded and fixed with a tape or the like (not shown). In this case, since the end portion of the core material 11 is rounded, the ear portion 12a is folded along the roundness, and can be folded without creating a convection space between the ear portion 12a and the outer packaging material 12. Thereby, formation of the convection space of the heat conventionally added to the heat transfer conducted through the metal part (barrier layer) which the outer packaging material 12 of the vacuum heat insulation panels 5-9 has can be suppressed to the minimum.

上記した構成の真空断熱パネル５〜９は、折り曲げ加工程度が可能である。本実施形態の場合、冷蔵庫本体１の底板部及び背面部下部に相当する真空断熱パネル９は、断面がほぼ「く」字状をなすように折り曲げられている。   The vacuum heat insulating panels 5 to 9 having the above-described configuration can be bent. In the case of this embodiment, the vacuum heat insulation panel 9 corresponding to the bottom plate part and the lower part of the back part of the refrigerator body 1 is bent so that the cross section has a substantially “<” shape.

さて、冷蔵庫本体１の内部である庫内には、図６に示すように、庫内を冷却する冷却器１５と、冷却用のファン装置１６が配設されており、これら冷却器１５とファン装置１６はカバー１７で覆われている。冷却器１５の近傍には除霜ヒータ（図示しない）が配設され、冷却器１５の下方には除霜水を受ける水受け部１９が配設されている。尚、冷蔵庫本体１の内部には、庫内を複数の部屋（冷凍室、冷蔵室、野菜室等）に仕切る仕切り壁２０や仕切り板（図示しない）等が配設されている。   Now, as shown in FIG. 6, a refrigerator 15 for cooling the interior of the refrigerator body 1 and a cooling fan device 16 are disposed inside the refrigerator body 1. The device 16 is covered with a cover 17. A defrost heater (not shown) is disposed in the vicinity of the cooler 15, and a water receiver 19 for receiving defrost water is disposed below the cooler 15. In addition, a partition wall 20 and a partition plate (not shown) that divide the inside of the refrigerator into a plurality of rooms (freezer compartment, refrigerator compartment, vegetable compartment, etc.) are disposed inside the refrigerator body 1.

また、冷蔵庫本体１の外部である庫外、特には、下部の機械室２１には、図７にも示しように、コンプレッサ２２と、放熱器２３と、放熱用のファン装置２４と、除霜水を蒸発させる蒸発皿２５と、制御基板２６とが配設されている。   In addition, as shown in FIG. 7, the compressor 22, the radiator 23, the heat radiating fan device 24, and the defrosting are also provided outside the refrigerator body 1, particularly in the lower machine room 21. An evaporating dish 25 for evaporating water and a control board 26 are provided.

そして、図６及び図８に示すように、冷蔵庫本体１の背面部の隣接する２枚の真空断熱パネル８、９の接合部分には、両パネル８、９が所定距離（例えば数ｃｍ程度）離れた離間部２７が設けられている。この離間部２７には、冷蔵庫本体１の庫内と庫外を貫通するように配設された接続手段２８が配置されている。この場合、接続手段２８として、電気配線２９と、排水経路３０と、冷凍サイクルの連結用の冷媒パイプ３１とが配設されている。また、離間部２７には、図９に示すように、発泡断熱手段として例えばウレタンフォーム３２が配設されている。   And as shown in FIG.6 and FIG.8, both panels 8 and 9 are predetermined distance (for example, about several cm) in the junction part of the two vacuum heat insulation panels 8 and 9 which adjoin the back surface part of the refrigerator main body 1. FIG. A separate separation portion 27 is provided. In the separation portion 27, connection means 28 is disposed so as to penetrate the inside and the outside of the refrigerator main body 1. In this case, as the connection means 28, an electrical wiring 29, a drainage path 30, and a refrigerant pipe 31 for connecting the refrigeration cycle are arranged. Further, as shown in FIG. 9, for example, urethane foam 32 is disposed in the separation portion 27 as foam heat insulating means.

電気配線２９は、庫内の各種の電気部品（ファン装置１６や除霜等）と、庫外の制御基板２６とを接続するものであり、図中には、電気配線の束を覆うパイプ状の配線カバーが示されている。排水経路３０は、庫内の水受け部１９の底部に接続された排水パイプで構成されており、この排水パイプは庫外において鉛直方向に延びて、その下端部は庫外の蒸発皿２５内に臨むように配設されている。水受け部１９内の除霜水は、上記排水経路３０を通って蒸発皿２５内へ送られる構成となっている。冷凍サイクルの冷媒パイプ３１は、冷却器１５の入口に連結される細い入口連結パイプ３１ａ（図７参照）と、冷却器１５の出口に連結される太い出口連結パイプ３１ｂとを接合して構成されている。入口連結パイプ３１ａと出口連結パイプ３１ｂは、図７に示すように、庫外において分岐し、出口連結パイプ３１ｂはコンプレッサ２２の入力部に接続され、入口連結パイプ３１ａは冷凍サイクルを構成する所定の部品（図示しない）に接続されている。   The electrical wiring 29 connects various electrical components (such as the fan device 16 and defrosting) inside the cabinet and the control board 26 outside the cabinet, and in the drawing, a pipe shape that covers a bundle of electrical wirings. The wiring cover is shown. The drainage path 30 is constituted by a drainage pipe connected to the bottom of the water receiver 19 in the warehouse, and this drainage pipe extends in the vertical direction outside the warehouse, and its lower end is inside the evaporating dish 25 outside the warehouse. It is arrange | positioned so that it may face. The defrost water in the water receiver 19 is sent to the evaporating dish 25 through the drainage path 30. The refrigerant pipe 31 of the refrigeration cycle is configured by joining a thin inlet connecting pipe 31a (see FIG. 7) connected to the inlet of the cooler 15 and a thick outlet connecting pipe 31b connected to the outlet of the cooler 15. ing. As shown in FIG. 7, the inlet connection pipe 31a and the outlet connection pipe 31b branch outside the warehouse, the outlet connection pipe 31b is connected to the input part of the compressor 22, and the inlet connection pipe 31a is a predetermined refrigeration cycle. It is connected to a component (not shown).

上記冷媒パイプ３１は、図１０に示すように、長さが３ｍ程度の冷媒パイプを細長なコイル状に巻回して形成された熱交換部３３を有している。この熱交換部３３においては、入口連結パイプ３１ａを流れる高温の冷媒と、出口連結パイプ３１ｂを流れる低温の冷媒との間で熱交換が実行される。上記熱交換部３３は、冷蔵庫本体１の庫内の後面部における冷却器１５の右側に配設されている。   As shown in FIG. 10, the refrigerant pipe 31 has a heat exchanging portion 33 formed by winding a refrigerant pipe having a length of about 3 m into an elongated coil shape. In the heat exchanging unit 33, heat exchange is performed between the high-temperature refrigerant flowing through the inlet connection pipe 31a and the low-temperature refrigerant flowing through the outlet connection pipe 31b. The heat exchanging unit 33 is disposed on the right side of the cooler 15 in the rear surface of the refrigerator main body 1.

そして、図１０及び図１１に示すように、冷媒パイプ３１の熱交換部３３は、断熱材３４で覆われている。この断熱材３４には、図１３及び図１４に示すように、熱交換部３３を収容する凹部３３ａと、電気配線２９を収容する凹部３３ｂとが形成されており、熱交換部３３及び電気配線２９は上記断熱材３４の凹部３３ａ、３３ｂに収容されて該断熱材３４で覆われている。即ち、接続手段２８（熱交換部３３及び電気配線２９）は、冷蔵庫本体１の庫内側において断熱材３４で覆われている。尚、図１２は、上記断熱材３４周辺の縦断側面図である。   As shown in FIGS. 10 and 11, the heat exchange part 33 of the refrigerant pipe 31 is covered with a heat insulating material 34. As shown in FIGS. 13 and 14, the heat insulating material 34 is formed with a concave portion 33 a for accommodating the heat exchanging portion 33 and a concave portion 33 b for accommodating the electric wiring 29. The heat exchanging portion 33 and the electric wiring 29 is accommodated in the recesses 33 a and 33 b of the heat insulating material 34 and is covered with the heat insulating material 34. In other words, the connecting means 28 (the heat exchanging portion 33 and the electric wiring 29) is covered with the heat insulating material 34 inside the refrigerator main body 1. FIG. 12 is a longitudinal side view of the periphery of the heat insulating material 34.

また、図１５は、離間部２７に配置された排水経路３０と、水受け部１９とを示す縦断面図である。この図１５に示すように、排水経路３０は、水受け部１９の下部から斜め下方に導出され、離間部２７内に挿入され、該離間部２７に配設されたウレタンフォーム３２で覆われている。   FIG. 15 is a longitudinal sectional view showing the drainage path 30 and the water receiving part 19 disposed in the separation part 27. As shown in FIG. 15, the drainage path 30 is led obliquely downward from the lower portion of the water receiving portion 19, inserted into the spacing portion 27, and covered with the urethane foam 32 disposed in the spacing portion 27. Yes.

上記構成の本実施形態によれば、内箱３と外箱２との間に挟む箱状断熱壁体４を２枚以上の真空断熱パネル５〜９を組み合わせて構成したので、真空断熱パネルとウレタンフォームを併用する構成に比べて、断熱性能を高くすることができる。そして、隣接する２枚の真空断熱パネル８、９の接合部分に設けられた離間部２７に、冷蔵庫本体１の庫内と庫外を貫通するように配設された接続手段、具体的には、電気配線２９、排水経路３０、冷媒パイプ３１を配置した。これにより、箱状断熱壁体４を２枚以上の真空断熱パネル５〜９を組み合わせて構成する冷蔵庫本体１を、比較的容易に実現することができる。   According to this embodiment of the above configuration, the box-shaped heat insulating wall 4 sandwiched between the inner box 3 and the outer box 2 is configured by combining two or more vacuum heat insulating panels 5 to 9, so that the vacuum heat insulating panel and Insulation performance can be increased compared to a configuration using urethane foam together. And the connection means arrange | positioned in the space | interval part 27 provided in the junction part of two adjacent vacuum heat insulation panels 8 and 9 so that the inside and the exterior of the refrigerator main body 1 may be penetrated, specifically, The electric wiring 29, the drainage path 30, and the refrigerant pipe 31 are arranged. Thereby, the refrigerator main body 1 which comprises the box-shaped heat insulation wall body 4 combining two or more vacuum heat insulation panels 5-9 can be implement | achieved comparatively easily.

また、上記実施形態では、離間部２７にウレタンフォーム３２を配設したので、離間部２７部分の断熱性能を十分高く保持することができる。更に、上記実施形態では、冷蔵庫本体１の庫内において、冷媒パイプ３１の熱交換部３３を断熱材３４で覆うように構成したので、熱交換部３３の温度が庫内の温度に比べて高くなることがあっても、熱交換部３３からの熱が庫内に漏れることを極力防止できる。   Moreover, in the said embodiment, since the urethane foam 32 was arrange | positioned in the space | interval part 27, the heat insulation performance of the space | interval part 27 part can be kept high enough. Furthermore, in the said embodiment, since it comprised so that the heat exchange part 33 of the refrigerant | coolant pipe 31 might be covered with the heat insulating material 34 in the store | warehouse | chamber of the refrigerator main body 1, the temperature of the heat exchange part 33 is high compared with the temperature in a store | warehouse | chamber. Even if it becomes, it can prevent that the heat | fever from the heat exchange part 33 leaks in a store | warehouse | chamber as much as possible.

図１６及び図１７は、本発明の第２実施形態を示すものである。尚、第１実施形態と同一構成には、同一符号を付している。この第２実施形態では、内箱３に庫内へ突出する凸部３６を設け、この凸部３６の内部に冷媒パイプ３１の熱交換部３３及び電気配線２９（即ち、接続手段）を配設し、熱交換部３３及び電気配線２９を内箱３と真空断熱パネル８との間に配置した。そして、内箱３の凸部３６を断熱材３４で覆うように構成した。   16 and 17 show a second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment. In the second embodiment, the inner box 3 is provided with a protruding portion 36 that protrudes into the cabinet, and the heat exchanging portion 33 of the refrigerant pipe 31 and the electric wiring 29 (that is, connecting means) are disposed inside the protruding portion 36. The heat exchanging part 33 and the electric wiring 29 were arranged between the inner box 3 and the vacuum heat insulating panel 8. And it was comprised so that the convex part 36 of the inner box 3 might be covered with the heat insulating material 34. FIG.

尚、上述した以外の第２実施形態の構成は、第１実施形態の構成と同じ構成となっている。従って、第２実施形態においても、第１実施形態とほぼ同じ作用効果を得ることができる。   The configurations of the second embodiment other than those described above are the same as the configurations of the first embodiment. Therefore, in the second embodiment, substantially the same operational effects as in the first embodiment can be obtained.

図１８は、本発明の第３実施形態を示すものである。尚、第２実施形態と同一構成には、同一符号を付している。この第３実施形態では、図１８に示すように、凸部３６よりも一回り大きい凸部３７を内箱３に設け、この凸部３７の内面と熱交換部３３との間に断熱材３４を配設するように構成した。上述した以外の第３実施形態の構成は、第２実施形態の構成と同じ構成となっている。従って、第３実施形態においても、第２実施形態とほぼ同じ作用効果を得ることができる。   FIG. 18 shows a third embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same structure as 2nd Embodiment. In the third embodiment, as shown in FIG. 18, a convex portion 37 that is slightly larger than the convex portion 36 is provided in the inner box 3, and a heat insulating material 34 is provided between the inner surface of the convex portion 37 and the heat exchanging portion 33. Was configured to be disposed. The configuration of the third embodiment other than that described above is the same as the configuration of the second embodiment. Therefore, in the third embodiment, substantially the same operational effects as in the second embodiment can be obtained.

図１９は、本発明の第４実施形態を示すものである。尚、第１実施形態と同一構成には、同一符号を付している。この第４実施形態では、図１９に示すように、冷蔵庫本体１の背面部に上下に隣接するように配置された２枚の真空断熱パネル８、９の離間部２７を、上部の真空断熱パネル８の前面に沿って配設された水受け部１９の真下に配設した。そして、排水経路３０を水受け部１９の底部から真っすぐ下方へ延ばすように配置した。   FIG. 19 shows a fourth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment. In this 4th Embodiment, as shown in FIG. 19, the separation | spacing part 27 of the two vacuum heat insulation panels 8 and 9 arrange | positioned so that it may adjoin to the back part of the refrigerator main body 1 up and down is an upper vacuum heat insulation panel. 8 was disposed just below the water receiving portion 19 disposed along the front surface of FIG. And the drainage path 30 was arrange | positioned so that it might extend straight down from the bottom part of the water receiving part 19. FIG.

尚、上述した以外の第４実施形態の構成は、第１実施形態の構成と同じ構成となっている。従って、第４実施形態においても、第１実施形態とほぼ同じ作用効果を得ることができる。特に、第４実施形態によれば、排水経路３０を水受け部１９の底部から真っすぐ下方へ延ばすように配置する構成としたので、除霜水が排水経路３０内をより一層スムーズに流れるようになる。また、排水経路３０の長さ寸法を短くすることができる。   The configurations of the fourth embodiment other than those described above are the same as the configurations of the first embodiment. Therefore, also in the fourth embodiment, substantially the same operational effects as in the first embodiment can be obtained. In particular, according to the fourth embodiment, since the drainage path 30 is arranged so as to extend straight down from the bottom of the water receiving part 19, the defrost water flows more smoothly in the drainage path 30. Become. Moreover, the length dimension of the drainage path 30 can be shortened.

図２０は、本発明の第５実施形態を示すものである。尚、第４実施形態と同一構成には、同一符号を付している。この第５実施形態では、図２０に示すように、真空断熱パネル８の下端部を下方へ延長し、この延長した真空断熱パネル８の下端部の前面に排水経路３０を沿わせるように配置した。そして、離間部２７には、ウレタンフォーム３２を図示するように配設した。上述した以外の第５実施形態の構成は、第４実施形態の構成と同じ構成となっている。従って、第５実施形態においても、第４実施形態とほぼ同じ作用効果を得ることができる。特に、第５実施形態によれば、真空断熱パネル８の下端部を下方へ延長し、この延長した部分の前面に排水経路３０を沿わせるように配置し、離間部２７にウレタンフォーム３２を配設したので、離間部２７部分の断熱性能をより一層高くすることができる。   FIG. 20 shows a fifth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same structure as 4th Embodiment. In the fifth embodiment, as shown in FIG. 20, the lower end portion of the vacuum heat insulation panel 8 is extended downward, and the drainage passage 30 is arranged along the front surface of the lower end portion of the extended vacuum heat insulation panel 8. . And the urethane foam 32 was arrange | positioned in the separation | spacing part 27 so that it might illustrate. The configuration of the fifth embodiment other than that described above is the same as the configuration of the fourth embodiment. Accordingly, in the fifth embodiment, substantially the same operational effects as in the fourth embodiment can be obtained. In particular, according to the fifth embodiment, the lower end portion of the vacuum heat insulation panel 8 is extended downward, the drainage passage 30 is arranged along the front surface of the extended portion, and the urethane foam 32 is arranged in the separation portion 27. Since it provided, the heat insulation performance of the space | interval part 27 part can be made still higher.

図２１ないし図２３は、本発明の第６実施形態を示すものである。尚、第１実施形態と同一構成には、同一符号を付している。この第６実施形態では、真空断熱パネル９の代わりに、図２３に示すように、真空断熱パネル３８の接合側の端部のコーナー部に斜めに欠けた形状の傾斜部として例えばＣ面形状部３８ａを形成した真空断熱パネル３８を用いた。このＣ面形状部３８ａを、図２１に示すように、離間部３９とした。そして、図２２に示すように、この離間部３９に、電気配線２９、排水経路３０および冷媒パイプ３１を配設した。   21 to 23 show a sixth embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment. In the sixth embodiment, instead of the vacuum heat insulation panel 9, as shown in FIG. 23, for example, a C-surface shape portion is formed as an inclined portion that is obliquely cut off at the corner portion on the joining side of the vacuum heat insulation panel 38. The vacuum heat insulation panel 38 formed with 38a was used. The C-surface shape portion 38a is a separation portion 39 as shown in FIG. And as shown in FIG. 22, the electrical wiring 29, the drainage path 30, and the refrigerant | coolant pipe 31 were arrange | positioned in this spacing part 39. As shown in FIG.

尚、真空断熱パネル３８に上記Ｃ面形状部３８ａを形成するに際しては、真空断熱パネルの心材を圧縮するときに、心材を変形させることにより、Ｃ面形状部３８ａを形成することが好ましい。勿論、他の方法でＣ面形状部３８ａを形成しても良い。また、Ｃ面形状部３８ａを形成した部分の真空断熱パネルの外包材１２の耳部１２ａの面積は、他の部分の耳部１２ａの面積よりも大きくなっているが、この大きくなった耳部１２ａもＣ面形状部３８ａの斜面に沿って折り曲げて接着している。   In forming the C-shaped portion 38a on the vacuum heat insulating panel 38, it is preferable to form the C-shaped portion 38a by deforming the core material when compressing the core material of the vacuum heat insulating panel. Of course, the C-shaped portion 38a may be formed by other methods. Further, the area of the ear part 12a of the outer packaging material 12 of the vacuum heat insulating panel in the part where the C-surface shaped part 38a is formed is larger than the area of the ear part 12a in the other part. 12a is also bent and bonded along the slope of the C-shaped portion 38a.

尚、上述した以外の第６実施形態の構成は、第１実施形態の構成と同じ構成となっている。従って、第６実施形態においても、第１実施形態とほぼ同じ作用効果を得ることができる。特に、第６実施形態では、真空断熱パネル３８のＣ面形状部３８ａを、離間部３９とし、この離間部３９に電気配線２９、排水経路３０、冷媒パイプ３１を配設したので、離間部３９の大きさを小さくすることができ、真空断熱パネル８、３８の接合部分の断熱性能をより一層高くすることができる。   The configuration of the sixth embodiment other than that described above is the same as the configuration of the first embodiment. Therefore, in the sixth embodiment, substantially the same operational effects as in the first embodiment can be obtained. In particular, in the sixth embodiment, the C-surface shape portion 38a of the vacuum heat insulating panel 38 is a separation portion 39, and the electrical wiring 29, the drainage path 30, and the refrigerant pipe 31 are disposed in the separation portion 39. Can be reduced, and the heat insulating performance of the joint portion of the vacuum heat insulating panels 8 and 38 can be further enhanced.

図２４は、本発明の第７実施形態を示すものである。尚、第１実施形態と同一構成には、同一符号を付している。この第７実施形態では、箱状断熱壁体４を、図２４にも示すように、２枚の真空断熱パネル４０、４１を組み合わせて構成した。真空断熱パネル４０は、断面形状が「コ」字状に形成され、箱状断熱壁体４の左右の側壁部と天井壁部とを一体化したパネルである。真空断熱パネル４１は、２か所で鈍角状に折曲され、箱状断熱壁体４の背壁部と底壁部とを一体化したパネルである。   FIG. 24 shows a seventh embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment. In the seventh embodiment, the box-shaped heat insulating wall 4 is configured by combining two vacuum heat insulating panels 40 and 41 as shown in FIG. The vacuum heat insulating panel 40 is a panel in which the cross-sectional shape is formed in a “U” shape, and the left and right side wall portions and the ceiling wall portion of the box-shaped heat insulating wall body 4 are integrated. The vacuum heat insulation panel 41 is a panel in which the back wall portion and the bottom wall portion of the box-shaped heat insulation wall body 4 are integrated by being bent at an obtuse angle at two locations.

上記真空断熱パネル４１のうちの、箱状断熱壁体４の背壁部の下部に相当する部分の左右方向の長さ寸法が他の部分よりも短くなるように形成されている。これにより、２枚の真空断熱パネル４０、４１を組み合わせて箱状断熱壁体４を構成したときに、箱状断熱壁体４の背壁部の下部の両側辺部に離間部４２が形成される。この離間部４２に電気配線２９、排水経路３０、冷媒パイプ３１を配設する。   Of the vacuum heat insulation panel 41, the length corresponding to the lower part of the back wall portion of the box-shaped heat insulation wall 4 is formed so that the length in the left-right direction is shorter than the other parts. Thereby, when the box-shaped heat insulation wall body 4 is comprised by combining the two vacuum heat insulation panels 40 and 41, the separation part 42 is formed in the both sides of the lower part of the back wall part of the box-shaped heat insulation wall body 4. The An electrical wiring 29, a drainage path 30, and a refrigerant pipe 31 are disposed in the separation portion 42.

尚、上述した以外の第７実施形態の構成は、第１実施形態の構成と同じ構成となっている。従って、第７実施形態においても、第１実施形態とほぼ同じ作用効果を得ることができる。特に、第７実施形態では、２枚の真空断熱パネル４０、４１を組み合わせて箱状断熱壁体４を構成したので、接合箇所が少なくなることから、断熱性能を向上できる。また、部品点数が少なくなるから、部品の管理等が容易になる。尚、上記した各形状の真空断熱パネル４０、４１は、実際に製造することが可能である。   The configurations of the seventh embodiment other than those described above are the same as the configurations of the first embodiment. Therefore, also in the seventh embodiment, substantially the same operational effects as in the first embodiment can be obtained. In particular, in the seventh embodiment, since the box-shaped heat insulating wall body 4 is configured by combining the two vacuum heat insulating panels 40 and 41, the number of joints is reduced, so that the heat insulating performance can be improved. In addition, since the number of parts is reduced, management of parts and the like are facilitated. In addition, the vacuum heat insulation panels 40 and 41 of each shape described above can be actually manufactured.

また、上記した各実施形態においては、接続手段としての冷媒パイプ３１の熱交換部３３を、冷蔵庫本体１の庫内側に配設したが、これに代えて、庫外側（例えば機械室内）に配設すると共に、断熱材で覆うように構成しても良い。   Further, in each of the above-described embodiments, the heat exchanging portion 33 of the refrigerant pipe 31 as the connecting means is disposed inside the refrigerator main body 1, but instead, it is disposed outside the refrigerator (for example, the machine room). And may be configured to be covered with a heat insulating material.

図面中、１は冷蔵庫本体、２は外箱、３は内箱、４は箱状断熱壁体、５、６、７、８、９は真空断熱パネル、１１は芯材、１２は外包材、１５は冷却器、１６はファン装置、１９は水受け部、２１は機械室、２２はコンプレッサ、２３は放熱器、２４はファン装置、２５は蒸発皿、２６は制御基板、２７は離間部、２８は接続手段、２９は電気配線、３０は排水経路、３１は冷媒パイプ、３２はウレタンフォーム（発泡断熱手段）、３３は熱交換部、３４は断熱材、３６は凸部、３７は凸部、３８は真空断熱パネル、３９は離間部、４０、４１は真空断熱パネル、４２は離間部を示す。   In the drawings, 1 is a refrigerator body, 2 is an outer box, 3 is an inner box, 4 is a box-shaped heat insulating wall body, 5, 6, 7, 8, 9 are vacuum heat insulating panels, 11 is a core material, 12 is an outer packaging material, 15 is a cooler, 16 is a fan device, 19 is a water receiving part, 21 is a machine room, 22 is a compressor, 23 is a radiator, 24 is a fan device, 25 is an evaporating dish, 26 is a control board, 27 is a separation part, 28 is connection means, 29 is electrical wiring, 30 is a drainage path, 31 is a refrigerant pipe, 32 is urethane foam (foam insulation means), 33 is a heat exchange part, 34 is a heat insulating material, 36 is a convex part, 37 is a convex part , 38 are vacuum heat insulation panels, 39 is a separation part, 40 and 41 are vacuum insulation panels, and 42 is a separation part.

Claims (7)

内箱と外箱との間に箱状断熱壁体を挟むように配置して構成された冷蔵庫本体を備えてなる冷蔵庫において、
前記箱状断熱壁体を、２枚以上の真空断熱パネルを組み合わせて構成し、
前記各真空断熱パネルの外面及び内面に前記外箱及び前記内箱を接着し、
隣接する２枚の真空断熱パネルを接合させるに際して両者が近接するように配置し、そして、
接続手段と、
隣接する２枚の真空断熱パネルの接合部分に前記接続手段を配置するように設けられた離間部とを備え、
前記箱状断熱壁体のうちの前記離間部に対応する部分には、前記真空断熱パネルと発泡断熱手段とを内外方向に重ねて配設するように構成したことを特徴とする冷蔵庫。 In a refrigerator comprising a refrigerator main body configured to sandwich a box-like heat insulation wall between an inner box and an outer box,
The box-shaped heat insulation wall is configured by combining two or more vacuum heat insulation panels,
Bonding the outer box and the inner box to the outer and inner surfaces of each vacuum insulation panel,
When two adjacent vacuum insulation panels are joined, they are placed close together, and
Connection means;
A separation portion provided so as to dispose the connection means at a joint portion between two adjacent vacuum heat insulation panels;
The refrigerator characterized in that the vacuum heat insulation panel and the foam heat insulation means are arranged to be overlapped in the inner and outer directions at a portion of the box-like heat insulation wall corresponding to the separation portion. 前記離間部においては、前記箱状断熱壁体の内外方向の厚み寸法を厚く構成した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 a thickness dimension in an inner and outer direction of the box-shaped heat insulating wall body is increased in the separation portion. 前記接続手段は、電気配線、排水経路、または、冷凍サイクルの冷媒パイプであることを特徴とする請求項１または２記載の冷蔵庫。   The refrigerator according to claim 1 or 2, wherein the connecting means is an electrical wiring, a drainage path, or a refrigerant pipe of a refrigeration cycle. 前記接続手段は、前記冷蔵庫本体の庫内側または庫外側において断熱材で覆われていることを特徴とする請求項１から３のいずれか一項に記載の冷蔵庫。   The refrigerator according to any one of claims 1 to 3, wherein the connecting means is covered with a heat insulating material inside or outside the refrigerator body. 前記内箱に庫内へ突出する凸部を設け、
前記凸部の内部に前記接続手段を配設し、
前記接続手段を前記内箱と前記真空断熱パネルとの間に配置したことを特徴とする請求項１から３のいずれか一項に記載の冷蔵庫。 Providing the inner box with a protruding part that protrudes into the cabinet,
The connecting means is disposed inside the convex portion,
The refrigerator according to any one of claims 1 to 3, wherein the connecting means is disposed between the inner box and the vacuum heat insulation panel. 隣接する２枚の真空断熱パネルのうちの一方の真空断熱パネルの接合側端部のコーナー部に斜めに欠けた形状の傾斜部を形成し、この傾斜部を前記離間部としたことを特徴とする請求項１から３のいずれか一項に記載の冷蔵庫。   An inclined portion having an obliquely cut shape is formed at the corner portion of the joining side end portion of one of the two adjacent vacuum heat insulating panels, and the inclined portion is used as the separation portion. The refrigerator according to any one of claims 1 to 3. 前記冷蔵庫本体の背面部に上下に隣接するように配置された２枚の真空断熱パネルのうちの下部の真空断熱パネルは、前方に向けて傾斜するように配設されていると共に、上部の真空断熱パネルは鉛直方向に沿うように配設され、
前記離間部は、前記上部の真空断熱パネルの前面に沿って配設された庫内部品の真下に配設されていることを特徴とする請求項１から３のいずれか一項に記載の冷蔵庫。 Of the two vacuum heat insulation panels disposed so as to be vertically adjacent to the back surface of the refrigerator body, the lower vacuum heat insulation panel is disposed so as to incline toward the front and the upper vacuum insulation panel. The thermal insulation panel is arranged along the vertical direction,
The refrigerator according to any one of claims 1 to 3, wherein the spacing portion is disposed directly below an in-house component disposed along a front surface of the upper vacuum heat insulating panel. .
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