JP2012251737A - Refrigerator - Google Patents

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JP2012251737A
JP2012251737A JP2011125397A JP2011125397A JP2012251737A JP 2012251737 A JP2012251737 A JP 2012251737A JP 2011125397 A JP2011125397 A JP 2011125397A JP 2011125397 A JP2011125397 A JP 2011125397A JP 2012251737 A JP2012251737 A JP 2012251737A
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cabinet
heat insulating
refrigerator
disposed
heat radiating
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JP6071174B2 (en
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Masatoshi Sato
正俊 佐藤
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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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Priority to JP2011125397A priority Critical patent/JP6071174B2/en
Priority to TW101119450A priority patent/TWI555956B/en
Priority to CN201210177181.6A priority patent/CN102809259B/en
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Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator that is less likely to indicate a pipe trace on the outer surface of a cabinet.SOLUTION: The refrigerator includes: a cabinet 16 with heat insulating materials 11, 15 disposed between an outer case and an inner box; a refrigeration cycle; and a heat radiation pipe 62, which constitutes a portion of a high temperature side refrigerant pipe of the refrigeration cycle, and which is disposed from one sidewall 16a of the cabinet 16 to the other sidewall 16b via a ceiling wall 16c. The heat radiation pipe 62 is provided with a deflection part 62c, which is deformable in the width direction, at both ends in the width direction of a ceiling wall 16c.

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.

従来より、冷蔵庫では、外箱と内箱との間に形成された断熱空間に発泡断熱材を充填したキャビネットの背面下部に機械室を設け、この機械室内に冷媒を循環させる冷凍サイクルを構成する圧縮機や凝縮器やこれらを接続する冷媒パイプ等が収納されている。   Conventionally, in a refrigerator, a machine room is provided in the lower back portion of a cabinet in which a heat insulating space formed between an outer box and an inner box is filled with foam heat insulating material, and a refrigeration cycle for circulating a refrigerant in the machine room is configured. A compressor, a condenser, a refrigerant pipe connecting these, and the like are accommodated.

凝縮器の出口側に接続された冷媒パイプは、減圧装置で減圧される前の液状冷媒が流通する高温側冷媒パイプの一部を構成する放熱パイプとして、キャビネットの外表面に結露するのを防止したり冷媒の熱を更に放熱したりするため、外箱の断熱空間側に沿わせて配設される場合がある（例えば、下記特許文献１）。   The refrigerant pipe connected to the outlet side of the condenser prevents condensation from forming on the outer surface of the cabinet as a heat-dissipating pipe that forms part of the high-temperature refrigerant pipe through which the liquid refrigerant flows before being decompressed by the decompression device. In order to further dissipate the heat of the refrigerant or the refrigerant, it may be disposed along the heat insulating space side of the outer box (for example, Patent Document 1 below).

このような外箱の断熱空間側に放熱パイプを配設したキャビネットは、プレス加工等により所定形状に形成した外箱に、予め所定形状に折り曲げた放熱パイプをアルミニウム箔テープ等で固定した後、これに内箱を組み付けて外箱と内箱との間に形成された断熱空間に断熱材を充填することで形成される。   The cabinet in which the heat radiating pipe is disposed on the heat insulating space side of the outer box is fixed to the outer box formed in a predetermined shape by pressing or the like, and the heat radiating pipe bent in advance in a predetermined shape is fixed with an aluminum foil tape or the like. This is formed by assembling an inner box and filling a heat insulating material into a heat insulating space formed between the outer box and the inner box.

特開２０１０−３８５２８号JP 2010-38528

しかしながら、外箱に比べて放熱パイプを寸法精度良く所定形状に折り曲げ加工することが困難であり放熱パイプの寸法ばらつきが大きいため、放熱パイプを外箱に固定するとパイプ痕といわれる放熱パイプによる外箱の盛り上がりがキャビネットの外表面に表れ、冷蔵庫の美観を損ねるおそれがある。   However, it is difficult to bend the heat radiating pipe into a predetermined shape with a dimensional accuracy compared to the outer box, and the dimensional variation of the heat radiating pipe is large. May appear on the outer surface of the cabinet, which may damage the aesthetics of the refrigerator.

本発明は、上記事情を考慮してなされたものであり、キャビネットの外表面にパイプ痕が表れにくい冷蔵庫を提供することを目的とする。   The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a refrigerator in which pipe marks are unlikely to appear on the outer surface of a cabinet.

本実施形態の冷蔵庫は、内箱と外箱の間に断熱材を配設したキャビネットと、冷凍サイクルと、前記冷凍サイクルの高温側冷媒パイプの一部を構成し前記キャビネットの一方の側壁から天井壁を介して他方の側壁に配設された放熱パイプとを備えた冷蔵庫において、
前記放熱パイプが前記天井壁の幅方向両端部に幅方向へ変形可能な撓み部を備えることを特徴とする。 The refrigerator according to the present embodiment includes a cabinet in which a heat insulating material is disposed between an inner box and an outer box, a refrigeration cycle, and a part of a high-temperature side refrigerant pipe of the refrigeration cycle. In the refrigerator provided with a heat radiating pipe disposed on the other side wall through the wall,
The heat radiating pipe includes bending portions that are deformable in the width direction at both ends of the ceiling wall in the width direction.

本発明の一実施例に係る冷蔵庫の断面図である。It is sectional drawing of the refrigerator which concerns on one Example of this invention. 図１の冷蔵庫の冷凍サイクルを示す図である。It is a figure which shows the refrigerating cycle of the refrigerator of FIG. 図１の冷蔵庫のキャビネットに配設された放熱パイプと真空断熱材を示す図である。It is a figure which shows the heat radiating pipe and vacuum heat insulating material which were arrange | positioned at the cabinet of the refrigerator of FIG. 図１の冷蔵庫のキャビネットの平面図である。It is a top view of the cabinet of the refrigerator of FIG. 図１の冷蔵庫の外箱側面を省略したキャビネットの側面図である。It is the side view of the cabinet which abbreviate | omitted the outer case side surface of the refrigerator of FIG. 図５の要部拡大図である。It is a principal part enlarged view of FIG. 比較例に係る冷蔵庫の外箱側面を省略したキャビネットの要部拡大側面図である。It is a principal part expanded side view of the cabinet which abbreviate | omitted the outer case side of the refrigerator which concerns on a comparative example.

以下、図面に基づいて本発明の一実施形態について説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本実施形態に係る冷蔵庫１０は、図１に示すように、鋼板からなる外箱１２と貯蔵空間を形成する内箱１４との間に断熱空間を設けたキャビネット１６を備える。   As shown in FIG. 1, the refrigerator 10 according to the present embodiment includes a cabinet 16 provided with a heat insulating space between an outer box 12 made of a steel plate and an inner box 14 forming a storage space.

内箱１４の内方に形成された貯蔵空間は、断熱仕切壁１７によって上方の冷蔵空間２０と下方の冷凍空間４０とに区画されている。   The storage space formed inside the inner box 14 is partitioned into an upper refrigeration space 20 and a lower refrigeration space 40 by a heat insulating partition wall 17.

冷蔵空間２０は、冷蔵温度（例えば、２〜３℃）に冷却される空間であって、内部がさらに仕切壁２１によって上下に区画され、仕切壁２１の上方に複数段の載置棚を設けた冷蔵室２２が設けられ、仕切壁２１の下方に引出式の収納容器２６を配置する野菜室２４が設けられている。   The refrigerated space 20 is a space that is cooled to a refrigeration temperature (for example, 2 to 3 ° C.), and the interior is further divided vertically by a partition wall 21, and a plurality of mounting shelves are provided above the partition wall 21. A refrigerator compartment 22 is provided, and a vegetable compartment 24 in which a drawer-type storage container 26 is arranged below the partition wall 21 is provided.

冷蔵室２２の天井面を形成するキャビネット１６の天井壁１６ｃには、図１に示すように、冷蔵室２２の前後方向の中央部より前方に寄った位置に庫内側から上方（つまり、断熱空間側）へ陥没する凹部３０が形成されている。この凹部３０内には、照明装置３１が収納されており、冷蔵室２２の扉２３の開扉時に冷蔵庫の制御基板（不図示）から供給される駆動電源によって冷蔵室２２内を照明する。   As shown in FIG. 1, the ceiling wall 16 c of the cabinet 16 that forms the ceiling surface of the refrigerator compartment 22 has an upper side (that is, a heat insulating space) at a position closer to the front than the central portion in the front-rear direction of the refrigerator compartment 22. A recess 30 is formed to be recessed to the side. An illuminating device 31 is housed in the recess 30, and the inside of the refrigerator compartment 22 is illuminated by a driving power supplied from a control board (not shown) of the refrigerator when the door 23 of the refrigerator compartment 22 is opened.

断熱仕切壁１７を介して野菜室２４の下方に配置した冷凍空間４０は、冷凍温度（例えば、−１８℃以下）に冷却される空間であって、自動製氷機を備えた製氷室４２と小型冷凍室（不図示）とが左右に併設され、その下方に冷凍室４６が設けられている。   A freezing space 40 disposed below the vegetable compartment 24 via the heat insulating partition wall 17 is a space cooled to a freezing temperature (for example, −18 ° C. or lower), and is small in size with an ice making room 42 equipped with an automatic ice making machine. Freezer compartments (not shown) are provided on the left and right, and a freezer compartment 46 is provided below them.

冷蔵空間２０の後部には、冷蔵空間２０内の空気を冷却する冷蔵用冷却器５２と冷蔵用冷却器５２で冷却された冷気を冷蔵室２２及び野菜室２４へ送風する冷蔵用送風ファン５３が設けられている。また、冷凍空間４０の後部には、冷凍空間４０内の空気を冷却する冷凍用冷却器５４と冷凍用冷却器５４で冷却された冷気を製氷室４２と小型冷凍室と冷凍室４６へ送風する冷凍用送風ファン５５が設けられている。   A refrigeration cooler 52 that cools the air in the refrigeration space 20 and a refrigeration blower fan 53 that blows the cold air cooled by the refrigeration cooler 52 to the refrigeration chamber 22 and the vegetable compartment 24 are provided at the rear of the refrigeration space 20. Is provided. Further, at the rear part of the freezing space 40, a freezing cooler 54 that cools the air in the freezing space 40, and the cold air cooled by the freezing cooler 54 is sent to the ice making chamber 42, the small freezing chamber, and the freezing chamber 46. A refrigeration blower fan 55 is provided.

冷蔵用冷却器５２及び冷凍用冷却器５４は、キャビネット１６の背面下部に設けられた機械室１９内に収納された圧縮機５１や凝縮器５６とともに冷凍サイクル５０を構成する。   The refrigeration cooler 52 and the refrigeration cooler 54 constitute a refrigeration cycle 50 together with a compressor 51 and a condenser 56 housed in a machine room 19 provided at the lower back of the cabinet 16.

冷凍サイクル５０は、図２に示すように、高温高圧のガス状の冷媒を吐出する圧縮機５１と、圧縮機５１から吐出されるガス状の冷媒を受けて放熱液化する凝縮器５６と、凝縮器５６の出口側に設けられ冷媒流路を切り換える切替弁５７と、冷蔵用冷却器５２及び冷凍用冷却器５４と、これらの冷却器５２，５４のための絞り手段としての冷蔵用減圧装置５８及び冷凍用減圧装置５９と、逆止弁６０とを備え、これらを冷媒パイプによって配管接続することで、圧縮機５１から吐出された冷媒を循環させて冷蔵用冷却器５２及び冷凍用冷却器５４を冷却する。   As shown in FIG. 2, the refrigeration cycle 50 includes a compressor 51 that discharges a high-temperature and high-pressure gaseous refrigerant, a condenser 56 that receives the gaseous refrigerant discharged from the compressor 51 and liquefies heat, and a condenser A switching valve 57 provided on the outlet side of the cooler 56 for switching the refrigerant flow path, a refrigerating cooler 52 and a refrigerating cooler 54, and a refrigerating decompression device 58 as a throttling means for the coolers 52 and 54. The refrigerating cooler 52 and the refrigerating cooler 54 are circulated by circulating the refrigerant discharged from the compressor 51 by connecting them with a refrigerant pipe. Cool down.

上記構成の冷蔵庫１０において、キャビネット１６は、外箱１２の断熱空間側に放熱パイプ６１，６２と真空断熱材１１，１５とを配設した状態で発泡断熱材１３によって外箱１２と内箱１４とが一体化されている。   In the refrigerator 10 having the above configuration, the cabinet 16 includes the outer box 12 and the inner box 14 by the foam heat insulating material 13 in a state where the heat radiating pipes 61 and 62 and the vacuum heat insulating materials 11 and 15 are disposed on the heat insulating space side of the outer box 12. And are integrated.

詳細には、放熱パイプ６１，６２は、凝縮器５６の出口側と切替弁５７の入口とを接続する冷媒パイプであり、減圧装置５８，５９で減圧される前の液状冷媒が流通する高温側冷媒パイプの一部を構成する。   Specifically, the heat radiating pipes 61 and 62 are refrigerant pipes connecting the outlet side of the condenser 56 and the inlet of the switching valve 57, and the high temperature side through which the liquid refrigerant before being decompressed by the decompression devices 58 and 59 circulates. It constitutes a part of the refrigerant pipe.

放熱パイプ６１は、凝縮器５６の出口側に接続され、図３に示すように、機械室１９の天井面を形成する外箱底板１２ａを貫通してキャビネット１６の発泡空間内へ進入する。キャビネット１６内へ進入した放熱パイプ６１は、キャビネット１６の一方の側壁１６ａ内をその周縁部に沿って略環状に設けられており、放熱パイプ６１の端部が外箱底板１２ａを貫通して再び機械室１９に戻り放熱パイプ６２に接続される。   The heat radiating pipe 61 is connected to the outlet side of the condenser 56, and enters the foaming space of the cabinet 16 through the outer box bottom plate 12 a forming the ceiling surface of the machine room 19 as shown in FIG. 3. The heat radiating pipe 61 that has entered the cabinet 16 is provided in a substantially annular shape along one of the side walls 16a of the cabinet 16 along its peripheral edge, and the end of the heat radiating pipe 61 penetrates the outer box bottom plate 12a again. It returns to the machine room 19 and is connected to the heat radiating pipe 62.

放熱パイプ６２は、機械室１９の左右一方の側部から外箱底板１２ａを貫通してキャビネット１６の一方の側壁１６ａ内へ進入し、一方の側壁１６ａの後端部を上方に向かって延び、キャビネット１６の天井壁１６ｃを通って、他方の側壁１６ｂの後端部を下方に向かって延びて機械室１９の他方の側部へ戻るように配設され、機械室１９内に設けられた切替弁５７の入口に接続されている。   The heat radiating pipe 62 penetrates the outer box bottom plate 12a from one of the left and right sides of the machine room 19 and enters the one side wall 16a of the cabinet 16, and extends upward at the rear end of the one side wall 16a. The switching provided in the machine room 19 is arranged so as to extend downward through the ceiling wall 16c of the cabinet 16 and return to the other side part of the machine room 19 extending downward. It is connected to the inlet of the valve 57.

キャビネット１６の側壁１６ａ，１６ｂに配設された放熱パイプ６２のうち貯蔵空間の外側に位置する部分６２ａ、つまり、側壁１６ａ，１６ｂにおいて貯蔵空間を区画する部分に配設された側面放熱パイプ６２ａは、側壁１６ａ，１６ｂの後端部を外箱１２の断熱空間側に上下方向に沿って延びる直線形状をなしている。側壁１６ａ，１６ｂ内に配設された側面放熱パイプ６２ａの上端部は、前方に折り曲げられキャビネット１６の天井壁１６ｃに進入する。   Of the heat radiating pipes 62 disposed on the side walls 16a and 16b of the cabinet 16, the portion 62a located outside the storage space, that is, the side surface heat radiating pipe 62a disposed on the side walls 16a and 16b that divides the storage space, The rear ends of the side walls 16a and 16b have a linear shape extending in the vertical direction toward the heat insulating space of the outer box 12. The upper end portions of the side surface heat radiating pipes 62 a disposed in the side walls 16 a and 16 b are bent forward and enter the ceiling wall 16 c of the cabinet 16.

キャビネット１６の天井壁１６ｃ内に配設された放熱パイプ６２は、図４に示すように、天井壁１６ｃの幅方向両端部に撓み部６２ｃを備える。   As shown in FIG. 4, the heat radiating pipe 62 disposed in the ceiling wall 16 c of the cabinet 16 includes bent portions 62 c at both ends in the width direction of the ceiling wall 16 c.

撓み部６２ｃは、天井壁１６ｃの後部から前方へ延び前後方向の中央部付近で後方へ折り返されて形成され、天井壁１６ｃの後部から前方へ突出する折返し形状をなしている。このような形状の撓み部６２ｃは、前後方向に延びて幅方向に相対向する一対の辺部６２ｃ−１が近接離間するように弾性変形することで幅方向へ弾性変形可能に設けられている。天井壁１６ｃの幅方向両端部に設けられた撓み部６２ｃは、天井壁１６ｃの後端部を外箱１２の断熱空間側に沿って直線状に配設された天井放熱パイプ６２ｂによって連結されている。   The bending part 62c extends forward from the rear part of the ceiling wall 16c and is folded back to the vicinity of the center part in the front-rear direction, and has a folded shape protruding forward from the rear part of the ceiling wall 16c. The bent portion 62c having such a shape is provided so as to be elastically deformable in the width direction by elastically deforming so that a pair of side portions 62c-1 extending in the front-rear direction and facing each other in the width direction are close to each other. . The bent portions 62c provided at both ends in the width direction of the ceiling wall 16c are connected to the rear end portion of the ceiling wall 16c by ceiling heat radiating pipes 62b arranged linearly along the heat insulating space side of the outer box 12. Yes.

また、真空断熱材１１，１５は、アルミニウム箔を含むラミネートフィルムで製袋したガスバリア容器に綿状のガラス繊維からなるコア材を真空状態で密封して板状に形成したもので、真空断熱材１１がキャビネット１６の天井壁１６ｃに設けられ、真空断熱材１５がキャビネット１６の左右の側壁１６ａ，１６ｂに設けられている。   Moreover, the vacuum heat insulating materials 11 and 15 are formed by sealing a core material made of cotton-like glass fiber in a vacuum state into a gas barrier container made of a laminated film containing an aluminum foil in a vacuum state. 11 is provided on the ceiling wall 16 c of the cabinet 16, and the vacuum heat insulating material 15 is provided on the left and right side walls 16 a and 16 b of the cabinet 16.

キャビネット１６の天井壁１６ｃに設けられた真空断熱材１１は、前後方向が天井壁１６ｃに設けられた凹部３０と天井放熱パイプ６２ｂとの間であって、かつ、幅方向が放熱パイプ６２に設けられた撓み部６２ｃの間に配設されている。つまり、真空断熱材１１は、天井壁１６ｃに設けられた凹部３０の上方位置を避けるとともに、撓み部６２ｃ及び天井放熱パイプ６２ｂを避けて配置されている。   The vacuum heat insulating material 11 provided on the ceiling wall 16c of the cabinet 16 is provided between the concave portion 30 provided on the ceiling wall 16c and the ceiling heat radiating pipe 62b in the front-rear direction, and provided in the heat radiating pipe 62 in the width direction. Between the bent portions 62c. That is, the vacuum heat insulating material 11 is disposed so as to avoid the upper position of the recess 30 provided in the ceiling wall 16c and avoid the bending portion 62c and the ceiling heat radiating pipe 62b.

キャビネット１６の左右の側壁１６ａ，１６ｂのうち放熱パイプ６１が配設された一方の側壁１６ａに設けられた真空断熱材１５は、図５に示すように、外箱１２との対向面に放熱パイプ６１の外形寸法より大きく陥没し上下方向に延びる一対の凹溝１５ａが設けられている。凹溝１５ａが設けられた真空断熱材１５は、凹溝１５ａにおいて放熱パイプ６１を外箱１２との間で挟むように外箱１２に固定される。   The vacuum heat insulating material 15 provided on one of the left and right side walls 16a and 16b of the cabinet 16 where the heat radiating pipe 61 is disposed is provided on the surface facing the outer box 12 as shown in FIG. A pair of concave grooves 15a which are depressed larger than the outer dimensions of 61 and extend in the vertical direction are provided. The vacuum heat insulating material 15 provided with the concave groove 15a is fixed to the outer box 12 so that the heat radiating pipe 61 is sandwiched between the outer casing 12 in the concave groove 15a.

このようなキャビネット１６を製造するには、まず、鋼板をプレス加工等によって所定形状に形成した外箱１２の断熱空間側に所定形状に折り曲げた放熱パイプ６１，６２を固定する。放熱パイプ６１，６２の固定は、放熱パイプ６１，６２の熱が外箱１２へ良好に伝導するようにアルミニウム箔テープや良熱伝導性のホットメルト接着材等の固定手段６４によって行う。   In order to manufacture such a cabinet 16, first, the heat radiating pipes 61 and 62, which are bent into a predetermined shape, are fixed to the heat insulating space side of the outer box 12 in which a steel plate is formed into a predetermined shape by pressing or the like. The heat radiating pipes 61 and 62 are fixed by fixing means 64 such as an aluminum foil tape or a good heat conductive hot melt adhesive so that the heat of the heat radiating pipes 61 and 62 is conducted well to the outer box 12.

具体的には、キャビネット１６の一方の側壁１６ａから天井壁１６ｃを介して他方の側壁１６ｂに配設された放熱パイプ６２は、撓み部６２ｃ以外の側面放熱パイプ６２ａ及び天井放熱パイプ６２ｂが固定手段６４によって固定されており、撓み部６２ｃが外箱１２に対して固定されておらず自由に移動できるようになっている。   Specifically, the heat radiating pipe 62 disposed from one side wall 16a of the cabinet 16 to the other side wall 16b through the ceiling wall 16c is fixed to the side surface heat radiating pipe 62a and the ceiling heat radiating pipe 62b other than the bent portion 62c. 64, and the bending part 62c is not fixed with respect to the outer case 12, but can move freely.

次に、放熱パイプ６１，６２を固定した外箱１２の天井面及び左右側面の断熱空間側に真空断熱材１１，１５を固定する。   Next, the vacuum heat insulating materials 11 and 15 are fixed to the ceiling surface of the outer box 12 to which the heat radiating pipes 61 and 62 are fixed and the heat insulating space sides of the left and right side surfaces.

そして、放熱パイプ６１，６２と真空断熱材１１，１５とが発泡空間側に固定された外箱１２と、内箱１４とを組み付けて外箱１２と内箱１４との間に断熱空間を形成し、この断熱空間にポリウレタンホームからなる発泡断熱材の原液を注入する。これにより、外箱１２の断熱空間側に放熱パイプ６１，６２と真空断熱材１１，１５とを配設した状態で発泡断熱材１３によって外箱１２と内箱１４とが一体化されたキャビネット１６が形成される。   Then, the outer box 12 in which the heat radiating pipes 61 and 62 and the vacuum heat insulating materials 11 and 15 are fixed to the foaming space side and the inner box 14 are assembled to form a heat insulating space between the outer box 12 and the inner box 14. Then, a stock solution of foam heat insulating material made of polyurethane home is poured into this heat insulating space. Thereby, the cabinet 16 in which the outer box 12 and the inner box 14 are integrated by the foam heat insulating material 13 in a state where the heat radiating pipes 61 and 62 and the vacuum heat insulating materials 11 and 15 are arranged on the heat insulating space side of the outer box 12. Is formed.

以上のように本実施形態の冷蔵庫１０では、キャビネット１６の一方の側壁１６ａから天井壁１６ｃを介して他方の側壁１６ｂに配設された放熱パイプ６２が、天井壁１６ｃの幅方向両端部に幅方向へ変形可能に設けられた撓み部６２ｃを備える。そのため、所定形状に折り曲げられた放熱パイプ６２に寸法ばらつきがあっても、撓み部６２ｃが幅方向に撓み変形することで折り曲げ加工による寸法誤差を吸収することができ、放熱パイプ６１を外箱１２に固定してもキャビネット１６の外表面に外箱１２の盛り上がり（パイプ痕）が表れにくくなり、冷蔵庫１０の美観を損ねることがない。   As described above, in the refrigerator 10 of the present embodiment, the heat radiating pipes 62 disposed on the other side wall 16b from the one side wall 16a of the cabinet 16 through the ceiling wall 16c are wide at both ends in the width direction of the ceiling wall 16c. A bending portion 62c provided to be deformable in the direction is provided. Therefore, even if there is a variation in dimensions of the heat radiating pipe 62 bent into a predetermined shape, a dimensional error caused by bending can be absorbed by the bending portion 62c being bent and deformed in the width direction. Even if it fixes to, the swell (pipe trace) of the outer box 12 becomes difficult to appear on the outer surface of the cabinet 16, and the beauty of the refrigerator 10 is not spoiled.

また、本実施形態の冷蔵庫１０では、天井壁１６ｃの後部から前方へ突出する折返し形状をなした撓み部６２ｃが天井壁１６ｃの幅方向両端部に配設されているため、キャビネット１６において庫内までの断熱壁の厚さが大きな位置に、庫内温度より高温になる撓み部６２ｃを配置することができ、撓み部６２ｃの熱が庫内側へ漏洩しにくくなってキャビネット１６の断熱性能を向上させることができる。   Moreover, in the refrigerator 10 of this embodiment, since the bending part 62c which made | formed the folding shape which protrudes ahead from the rear part of the ceiling wall 16c is arrange | positioned in the width direction both ends of the ceiling wall 16c, in the cabinet 16, It is possible to arrange the bent portion 62c having a temperature higher than the inside temperature in a position where the thickness of the heat insulating wall is large, and the heat of the bent portion 62c is difficult to leak to the inside of the warehouse, thereby improving the heat insulating performance of the cabinet 16. Can be made.

しかも、本実施形態の冷蔵庫１０では、天井壁１６ｃの幅方向両端部に設けられた撓み部６２ｃの間に真空断熱材１１が配設されているため、天井壁１６ｃにおいて貯蔵空間に対向する部分の広い範囲に真空断熱材１１を配設することができ、キャビネット１６の断熱性能を向上させることができる。   Moreover, in the refrigerator 10 of the present embodiment, the vacuum heat insulating material 11 is disposed between the bent portions 62c provided at both ends in the width direction of the ceiling wall 16c, so that the portion of the ceiling wall 16c that faces the storage space The vacuum heat insulating material 11 can be disposed in a wide range, and the heat insulating performance of the cabinet 16 can be improved.

また、本実施形態の冷蔵庫１０では、キャビネット１６の側壁１６ａ，１６ｂに設けられた側面放熱パイプ６２ａが、側壁１６ａ，１６ｂの後端部を外箱１２の断熱空間側を上下方向に沿って延びる直線形状をなしているため、真空断熱材１５をキャビネット１６の側壁１６ａ，１６ｂの広い範囲に配設することができ、キャビネット１６の断熱性能を向上させることができる。つまり、図７に示すように、キャビネット１６の側壁１６ａの後部から前方へ突出する折返し部６５が側面放熱パイプ６２ａに設けられていると、該折返し部６５を避けて側壁１６ａ，１６ｂ内に真空断熱材１５を設けなければならないが、本実施形態では、側面放熱パイプ６２ａが直線形状をなしているため、キャビネット１６の側壁１６ａ，１６ｂの広い範囲に真空断熱材１５を配設することができる。   Moreover, in the refrigerator 10 of this embodiment, the side surface radiation | emission pipe 62a provided in the side walls 16a and 16b of the cabinet 16 extends along the up-down direction at the rear end part of the side walls 16a and 16b in the heat insulation space side of the outer box 12. Since it has a linear shape, the vacuum heat insulating material 15 can be disposed over a wide range of the side walls 16a and 16b of the cabinet 16, and the heat insulating performance of the cabinet 16 can be improved. That is, as shown in FIG. 7, when the folded portion 65 protruding forward from the rear portion of the side wall 16a of the cabinet 16 is provided on the side surface heat radiating pipe 62a, the folded portions 65 are avoided and the side walls 16a and 16b are vacuumed. Although the heat insulating material 15 must be provided, in this embodiment, since the side surface heat radiating pipe 62a has a linear shape, the vacuum heat insulating material 15 can be disposed over a wide range of the side walls 16a and 16b of the cabinet 16. .

具体的には、図７に示すような側面放熱パイプ６２ａに折返し部６５を設けた場合であると、パイプの曲げ半径を確保する必要があるため折返し部６５の上下方向の寸法をある程度大きくしなければならず、真空断熱材１５の上端から側壁１６ａに配設された放熱パイプ６１の上端辺６１ａまでの距離Ａを該上端辺６１ａから外箱天板１２ｂまでの距離Ｂより小さくすることが困難となるが、図６に示すような本実施形態では、側壁１６ａ，１６ｂに配設された真空断熱材１５の上端から側壁１６ａに配設された放熱パイプ６１の上端辺６１ａまでの距離Ａを該上端辺６１ａから外箱天板１２ｂまでの距離Ｂより小さくすることが可能となり、広い範囲に真空断熱材１５を配設することができる。   More specifically, in the case where the folded portion 65 is provided on the side surface heat radiating pipe 62a as shown in FIG. The distance A from the upper end of the vacuum heat insulating material 15 to the upper end side 61a of the heat radiating pipe 61 disposed on the side wall 16a should be smaller than the distance B from the upper end side 61a to the outer box top plate 12b. Although difficult, in the present embodiment as shown in FIG. 6, the distance A from the upper end of the vacuum heat insulating material 15 disposed on the side walls 16a and 16b to the upper end side 61a of the heat radiating pipe 61 disposed on the side wall 16a. Can be made smaller than the distance B from the upper end side 61a to the outer box top plate 12b, and the vacuum heat insulating material 15 can be disposed in a wide range.

また、上記した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。これらの実施形態は、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。これらの実施形態は、発明の範囲や要旨に含まれると同様に、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ものである。   Moreover, the above-described embodiment is presented as an example, and is not intended to limit the scope of the invention. These 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 are included in the scope and gist of the invention, and are also included in the invention described in the scope of claims and the equivalents thereof.

１０…冷蔵庫 １１…真空断熱材 １２…外箱
１２ａ…外箱底板 １２ｂ…外箱天板 １３…発泡断熱材
１４…内箱 １５…真空断熱材 １５ａ…凹溝
１６…キャビネット １６ａ、１６ｂ…側壁
１６ｃ…天井壁 １７…断熱仕切壁 １９…機械室
２０…冷蔵空間 ２１…仕切壁 ２２…冷蔵室
２３…扉 ２４…野菜室 ２６…収納容器
３０…凹部 ３１…照明装置 ４０…冷凍空間
４２…製氷室 ４６…冷凍室 ５０…冷凍サイクル
５１…圧縮機 ５２…冷蔵用冷却器 ５３…冷蔵用送風ファン
５４…冷凍用冷却器 ５５…冷凍用送風ファン ５６…凝縮器
５７…切替弁 ５８…冷蔵用減圧装置 ５９…冷凍用減圧装置
６０…逆止弁 ６１…放熱パイプ ６２…放熱パイプ
６２ａ…側面放熱パイプ ６２ｂ…天井放熱パイプ
６２ｃ…撓み部 ６４…固定手段 ６５…折返し部 DESCRIPTION OF SYMBOLS 10 ... Refrigerator 11 ... Vacuum heat insulating material 12 ... Outer box 12a ... Outer box bottom plate 12b ... Outer box top plate 13 ... Foam heat insulating material 14 ... Inner box 15 ... Vacuum heat insulating material 15a ... Groove 16 ... Cabinet 16a, 16b ... Side wall 16c ... ceiling wall 17 ... heat insulating partition wall 19 ... machine room 20 ... refrigerated space 21 ... partition wall 22 ... refrigerated room 23 ... door 24 ... vegetable room 26 ... storage container 30 ... recess 31 ... lighting device 40 ... frozen space 42 ... ice making room 46 ... Freezing room 50 ... Refrigeration cycle 51 ... Compressor 52 ... Refrigeration cooler 53 ... Refrigeration blower fan 54 ... Refrigeration cooler 55 ... Refrigeration blower fan 56 ... Condenser 57 ... Switching valve 58 ... Refrigeration decompression device 59 ... Refrigerating decompression device 60 ... Check valve 61 ... Radiation pipe 62 ... Radiation pipe 62a ... Side surface radiation pipe 62b ... Ceiling radiation pipe 62c ... Bending part 64 ... Fixing means 65 ... Folding part

Claims (4)

内箱と外箱の間に断熱材を配設したキャビネットと、冷凍サイクルと、前記冷凍サイクルの高温側冷媒パイプの一部を構成し前記キャビネットの一方の側壁から天井壁を介して他方の側壁に配設された放熱パイプとを備えた冷蔵庫において、
前記放熱パイプが前記天井壁の幅方向両端部に幅方向へ変形可能な撓み部を備えることを特徴とする冷蔵庫。 A cabinet in which a heat insulating material is disposed between the inner box and the outer box, a refrigeration cycle, and a part of the high-temperature side refrigerant pipe of the refrigeration cycle, and the other side wall from one side wall of the cabinet through the ceiling wall In a refrigerator provided with a heat radiating pipe disposed in
The refrigerator is characterized in that the heat radiating pipe is provided with bending portions that can be deformed in the width direction at both ends in the width direction of the ceiling wall. 前記側壁に配設された前記放熱パイプのうち貯蔵空間の外側に位置する部分が、上下方向に延びる直線形状をなしていることを特徴とする請求項１に記載の冷蔵庫。   2. The refrigerator according to claim 1, wherein a portion of the heat radiating pipe disposed on the side wall and located outside the storage space has a linear shape extending in a vertical direction. 前記撓み部が、天井壁の後部から前方へ突出する折返し形状をなしていることを特徴とする請求項１又は２に記載の冷蔵庫。   The refrigerator according to claim 1 or 2, wherein the bent portion has a folded shape protruding forward from a rear portion of the ceiling wall. 前記天井壁内には、幅方向両端部に配設された前記撓み部の間に真空断熱材が配設されていることを特徴とする請求項１〜３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 a vacuum heat insulating material is disposed between the bent portions disposed at both ends in the width direction in the ceiling wall. .
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