JP2002090028A

JP2002090028A - Refrigerator

Info

Publication number: JP2002090028A
Application number: JP2000285450A
Authority: JP
Inventors: Masayasu Nishida; 正恭西田; Zenichi Inoue; 善一井上; Hiroshi Yoshimura; 宏吉村
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2000-09-20
Filing date: 2000-09-20
Publication date: 2002-03-27
Anticipated expiration: 2020-09-20
Also published as: JP3657184B2

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator, in which a plurality of storage chambers of different temperatures are cooled by the same cooler, cooling efficiency can be improved, and the low chamber-temperature can be easily maintained. SOLUTION: In the refrigerator, a storage chamber 10 keeps supplies, a cooler 25 generates cool air for cooling the chamber 10 and an ice-temperature chamber 14. The cool air is branched and conducted through a cool-air discharging path 27 and an ice-temperature duct 60 into the chambers 10 and 14. A cool-air return path 28 conducts the cool air in the storage chamber 10 into the cooler 25. A member 42 forming the cool-air discharging path 27 and the ice-temperature duct 60 releases the cold by the cool air circulating in the path 21 and duct 60 into the storage chamber 10.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は冷蔵庫に関し、特
に、冷却器により生成された冷気を貯蔵室内に吐出する
とともに該冷気による冷熱を貯蔵室内に放出する冷蔵庫
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly, to a refrigerator that discharges cold air generated by a cooler into a storage room and discharges cold generated by the cool air into the storage room.

【０００２】[0002]

【従来の技術】従来の冷蔵庫は例えば特開平１０−２５
３２１８号公報に開示されている。同公報によると、冷
蔵庫は上から冷蔵室、野菜室、冷凍室に区分けされ、冷
凍室の背後に冷気を生成する冷却器が設けられている。
冷却器からは、冷蔵室に向かう冷蔵室用冷気通路と、冷
凍室に向かう冷凍室用冷気通路とが導出されている。2. Description of the Related Art Conventional refrigerators are disclosed in, for example,
No. 3218 is disclosed. According to the publication, the refrigerator is divided into a refrigerator compartment, a vegetable compartment, and a freezer compartment from the top, and a cooler for generating cool air is provided behind the freezer compartment.
From the cooler, a cold air passage for the refrigerator compartment leading to the refrigerator compartment and a cold air passage for the freezer compartment leading to the freezer compartment are led out.

【０００３】冷却器の蒸発温度は例えば−２０℃になっ
ており、冷凍室用冷気通路を通る冷気が冷凍室に吐出さ
れる。そして、冷凍室内の空気と熱交換して冷気戻り通
路を通って冷却器に戻る。これにより冷凍室内が例えば
−１０℃に冷却されるようになっている。[0003] The evaporating temperature of the cooler is, for example, -20 ° C, and the cool air passing through the freezer passage is discharged into the freezer. Then, it exchanges heat with the air in the freezing room and returns to the cooler through the cool air return passage. Thereby, the freezer compartment is cooled to, for example, -10 ° C.

【０００４】冷蔵室用冷気通路を通る冷気は送風機によ
り冷気流量が調整されており、所定の時期に冷気が冷蔵
室に吐出される。そして、冷蔵室内の空気と熱交換した
後、冷蔵室と連通した野菜室に流入し、野菜室内を冷却
して冷気戻り通路を通って冷却器に戻る。これにより、
冷蔵室及び野菜室内がそれぞれ例えば３℃、５℃に冷却
されるようになっている。[0004] The flow rate of the cool air passing through the cool air passage for the cool room is adjusted by a blower, and the cool air is discharged into the cool room at a predetermined time. Then, after exchanging heat with the air in the refrigerator compartment, it flows into the vegetable compartment communicating with the refrigerator compartment, cools the vegetable compartment and returns to the cooler through the cool air return passage. This allows
The refrigerator compartment and the vegetable compartment are cooled to, for example, 3 ° C. and 5 ° C., respectively.

【０００５】また、冷蔵室内の下部には氷温室が設けら
れている。氷温室内には冷蔵室用冷却通路を通る冷気が
分岐して吐出される。氷温室は冷却器から近い位置に配
されるため吐出されるまでの経路が短くなっている。こ
のため、外部との熱交換によって奪われる冷熱量が少な
く低温の冷気が吐出される。これにより、氷温室の室内
温度が例えば−１℃に設定されている。[0005] Further, an ice temperature chamber is provided in a lower part of the refrigerator compartment. The cold air passing through the cooling passage for the refrigerator compartment is branched and discharged into the ice warm room. Since the ice greenhouse is arranged at a position close to the cooler, a path until the ice is discharged is short. For this reason, the amount of cold heat taken away by heat exchange with the outside is small, and low-temperature cold air is discharged. Thereby, the room temperature of the ice greenhouse is set to, for example, -1 ° C.

【０００６】また、冷蔵室及び野菜室を冷却するための
冷蔵室用冷却器と、冷凍室を冷却するための冷凍室用冷
却器とを別々に設けた冷蔵庫も知られている。この冷蔵
庫は、冷蔵室及び野菜室の温度に応じて冷蔵室用冷却器
の蒸発温度を上げることができ、省電力化を図ることが
できるようになっている。There is also known a refrigerator in which a refrigerator cooler for cooling the refrigerator compartment and the vegetable compartment and a refrigerator cooler for cooling the freezer compartment are separately provided. In this refrigerator, the evaporating temperature of the refrigerator cooler can be raised in accordance with the temperature of the refrigerator compartment and the vegetable compartment, and power saving can be achieved.

【０００７】[0007]

【発明が解決しようとする課題】しかしながら、上記の
従来の冷蔵庫によると、冷蔵室用冷却通路を通る冷気が
冷蔵室と氷温室とに分離されるため、冷蔵室に吐出され
る冷気量が減少する。このため、冷蔵室内を所定の室温
に維持するために長時間送風機を駆動して冷凍サイクル
を運転する必要があり冷却効率が悪い問題があった。同
様に、冷蔵室用冷却器を設けた場合であっても長時間冷
蔵室用冷却器の冷凍サイクルを運転する必要があり冷却
効率が悪い問題があった。However, according to the conventional refrigerator described above, the amount of cold air discharged into the refrigerator compartment is reduced because the cold air passing through the refrigerator passage is separated into the refrigerator compartment and the ice warm compartment. I do. For this reason, it is necessary to drive the blower for a long time to operate the refrigeration cycle in order to maintain the refrigerator compartment at a predetermined room temperature, and there is a problem that the cooling efficiency is poor. Similarly, even when the refrigerator cooler is provided, the refrigeration cycle of the refrigerator cooler must be operated for a long time, and there is a problem that the cooling efficiency is poor.

【０００８】また、冷蔵室内が所定の室温になって冷気
の循環を停止した際に、氷温室内の冷気と冷蔵室内の冷
気との間で熱交換が行われ、氷温室を低温に維持するこ
とが困難となる問題もあった。特に冬季には冷却器の冷
凍サイクルの運転時間が短くなるので、氷温室の温度維
持が著しく困難となる。When the temperature of the refrigerator reaches a predetermined room temperature and the circulation of the cool air is stopped, heat exchange is performed between the cool air in the cool room and the cool air in the cool room to keep the cool room at a low temperature. There were also problems that made it difficult. Particularly in winter, the operation time of the refrigeration cycle of the cooler is shortened, so that it is extremely difficult to maintain the temperature of the ice greenhouse.

【０００９】本発明は、室内温度の異なる複数の貯蔵室
を同じ冷却器で冷却する冷蔵庫において冷却効率を向上
させることができるとともに、低温の室内温度を容易に
維持することのできる冷蔵庫を提供することを目的とす
る。The present invention provides a refrigerator in which a plurality of storage rooms having different room temperatures are cooled by the same cooler, in which the cooling efficiency can be improved and a low room temperature can be easily maintained. The purpose is to:

【００１０】[0010]

【課題を解決するための手段】上記目的を達成するため
に本発明は、貯蔵物を収納する第１、第２貯蔵室と、第
１、第２貯蔵室を冷却するための冷気を生成する冷却器
と、該冷気を第１、第２貯蔵室にそれぞれ導く第１、第
２冷気吐出通路と、第１、第２冷気吐出通路と第１貯蔵
室との隔壁を形成し、第１、第２冷気吐出通路内を流通
する冷気による冷熱を伝えて第１貯蔵室内に放出する部
材と、を備えたことを特徴としている。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides first and second storage compartments for storing articles, and cool air for cooling the first and second storage compartments. A cooler, first and second cool air discharge passages for guiding the cool air to the first and second storage chambers, and a partition wall between the first and second cool air discharge passages and the first storage chamber; A member that transmits cold heat generated by the cool air flowing through the second cool air discharge passage and discharges the cooled heat into the first storage chamber.

【００１１】この構成によると、冷却器により生成され
た冷気は分岐して第１、第２冷気吐出通路を介してそれ
ぞれ第１、第２貯蔵室内に吐出される。そして、第１、
第２冷気吐出通路を通る冷気による冷熱が経路途中で部
材に伝えられ、部材を介して第１貯蔵室内の冷気との熱
交換が行われて第１貯蔵室内に冷熱が放出される。これ
により、第１貯蔵室内が均一に冷却される。According to this configuration, the cool air generated by the cooler branches and is discharged into the first and second storage chambers via the first and second cool air discharge passages, respectively. And the first,
Cold heat due to the cool air passing through the second cool air discharge passage is transmitted to the member in the middle of the path, heat exchange with the cool air in the first storage room is performed via the member, and the cool heat is released into the first storage room. Thereby, the first storage chamber is uniformly cooled.

【００１２】また本発明は、貯蔵物を収納する第１、第
２貯蔵室と、第１、第２貯蔵室を冷却するための冷気を
生成する冷却器と、該冷気を第１、第２貯蔵室にそれぞ
れ導く第１、第２冷気吐出通路と、第２冷気吐出通路と
第１貯蔵室との隔壁を形成し、第２冷気吐出通路内を流
通する冷気による冷熱を伝えて第１貯蔵室内に放出する
部材と、を備えたことを特徴としている。The present invention also provides a first and a second storage chamber for storing a storage object, a cooler for generating cool air for cooling the first and the second storage chamber, and a first and a second cooler for cooling the cool air. First and second cool air discharge passages respectively leading to the storage chamber, and partitions between the second cool air discharge passage and the first storage chamber are formed, and the first storage is performed by transmitting cold heat generated by the cool air flowing through the second cool air discharge passage. And a member for discharging into a room.

【００１３】この構成によると、冷却器により生成され
た冷気は分岐して第１、第２冷気吐出通路を介してそれ
ぞれ第１、第２貯蔵室内に吐出される。そして、第２冷
気吐出通路を通る冷気による冷熱が経路途中で部材に伝
えられ、部材を介して第１貯蔵室内の冷気との熱交換が
行われて第１貯蔵室内に冷熱が放出される。これによ
り、第１貯蔵室内が均一に冷却される。According to this configuration, the cool air generated by the cooler branches and is discharged into the first and second storage chambers via the first and second cool air discharge passages, respectively. Then, cold heat due to the cool air passing through the second cool air discharge passage is transmitted to the member in the middle of the path, heat exchange with the cool air in the first storage room is performed through the member, and the cool heat is released into the first storage room. Thereby, the first storage chamber is uniformly cooled.

【００１４】また本発明は、上記構成の冷蔵庫におい
て、前記部材は、第１貯蔵室及び第１、第２冷気吐出通
路の壁面を形成する他の部分の材料よりも熱伝導率が大
きい材料から成ることを特徴としている。According to the present invention, in the refrigerator having the above-described structure, the member may be made of a material having a higher thermal conductivity than materials of other portions forming the wall surfaces of the first storage chamber and the first and second cold air discharge passages. It is characterized by becoming.

【００１５】また本発明は、上記構成の冷蔵庫におい
て、前記冷却器を第１貯蔵室の上方の第１貯蔵室に面し
た位置に配置するとともに、第１貯蔵室の下方に第２貯
蔵室を配置し、第１貯蔵室の冷気を前記冷却器に戻す冷
気戻り通路を設けたことを特徴とたことを特徴としてい
る。この構成によると、第１、第２冷気吐出通路から第
１、第２貯蔵室に吐出される冷気が冷気戻り通路を通っ
て冷却器に戻る循環手段の停止時に、冷却器周辺の低温
で比重が大きい冷気が第２冷気吐出通路を流下して第２
貯蔵室を冷却する。Further, according to the present invention, in the refrigerator having the above structure, the cooler is disposed at a position facing the first storage room above the first storage room, and the second storage room is provided below the first storage room. And a cool air return passage for returning the cool air in the first storage chamber to the cooler. According to this configuration, when the circulating means in which the cool air discharged from the first and second cool air discharge passages to the first and second storage chambers returns to the cooler through the cool air return passage is stopped, the specific gravity is low at the low temperature around the cooler. The large cool air flows down the second cool air discharge passage and
Cool the storage room.

【００１６】また本発明は、上記構成の冷蔵庫におい
て、第２貯蔵室は第１貯蔵室内に配される隔離室から成
ることを特徴としている。According to the present invention, in the refrigerator having the above-mentioned structure, the second storage room is constituted by an isolation room arranged in the first storage room.

【００１７】また本発明は、上記構成の冷蔵庫におい
て、第１貯蔵室の左右方向の一端部に製氷を行うための
給水タンクを備え、他端部に第２冷気吐出通路を配置す
るとともに中央部に前記冷気戻り通路を配したことを特
徴としている。この構成によると、第１貯蔵室内の下方
の一端部に給水タンクが配されて貯水される。第２冷気
吐出通路が給水タンクと離れた他端部に配されて第２貯
蔵室に低温の冷気が導かれ、給水タンクと第２冷気吐出
通路との間に配される冷気戻り通路を通って冷気が冷却
器に戻される。According to the present invention, in the refrigerator having the above-mentioned structure, a water supply tank for making ice is provided at one end in the left-right direction of the first storage room, and a second cold air discharge passage is arranged at the other end, and the central portion is provided. And the cold air return passage is arranged in the second air conditioner. According to this configuration, the water supply tank is disposed at the lower end in the first storage chamber to store water. A second cool air discharge passage is arranged at the other end remote from the water supply tank, and low-temperature cool air is guided to the second storage chamber, and passes through a cool air return passage arranged between the water supply tank and the second cool air discharge passage. Cold air is returned to the cooler.

【００１８】また本発明は、上記構成の冷蔵庫におい
て、前記冷気戻り通路の経路途中に第２貯蔵室に臨む開
口部を設けたことを特徴としている。この構成による
と、冷却器の冷気を循環する循環手段の停止時に、冷却
器周辺の低温で比重の大きい冷気が冷気戻り通路を流下
する。そして、開口部を介して第２貯蔵室に流入して第
２貯蔵室を冷却する。Further, the present invention is characterized in that, in the refrigerator having the above-described structure, an opening facing the second storage room is provided in the middle of the path of the cool air return passage. According to this configuration, when the circulating means for circulating the cool air of the cooler is stopped, the cool air having a low specific gravity around the cooler flows down the cool air return passage. And it flows into a 2nd storage room through an opening part, and cools a 2nd storage room.

【００１９】また本発明は、上記構成の冷蔵庫におい
て、第２冷気吐出通路の断面積または第２冷気吐出通路
の吐出口の開口面積を可変できるようにしたことを特徴
としている。この構成によると、第２貯蔵室に吐出され
る冷気量が可変され、第２貯蔵室内の室内温度の調整が
可能となる。Further, the present invention is characterized in that in the refrigerator having the above structure, the sectional area of the second cool air discharge passage or the opening area of the discharge port of the second cool air discharge passage can be changed. According to this configuration, the amount of cool air discharged into the second storage room is varied, and the room temperature in the second storage room can be adjusted.

【００２０】また本発明は、上記構成の冷蔵庫におい
て、第２冷気吐出通路の前記部材に面する側に断熱材を
配したことを特徴としている。この構成によると、第２
冷気吐出通路を通る冷気による第１貯蔵室への冷熱の放
出が断熱材により抑制される。これにより、低温の冷気
が第２貯蔵室に吐出されるとともに、部材表面の結露が
防止される。Further, the present invention is characterized in that in the refrigerator having the above-described structure, a heat insulating material is provided on a side of the second cold air discharge passage facing the member. According to this configuration, the second
The release of cold heat to the first storage chamber due to cool air passing through the cool air discharge passage is suppressed by the heat insulating material. Thereby, low-temperature cool air is discharged to the second storage chamber, and dew condensation on the member surface is prevented.

【００２１】[0021]

【発明の実施の形態】以下に本発明の実施形態を図面を
参照して説明する。図１、図２は第１実施形態の冷蔵庫
を示す側面断面図及び正面図である。冷蔵庫１は外面を
覆う外箱２ａの内側に内箱２ｂが配され、外箱２ａと内
箱２ｂとの隙間には発泡ウレタン等の断熱材２ｃが充填
されている。冷蔵庫１の内部は上から冷蔵室１１、野菜
室１２、冷凍室１３の順に区分けされている。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a side sectional view and a front view showing the refrigerator of the first embodiment. The refrigerator 1 has an inner box 2b disposed inside an outer box 2a covering the outer surface, and a gap between the outer box 2a and the inner box 2b is filled with a heat insulating material 2c such as urethane foam. The interior of the refrigerator 1 is divided into a refrigerator compartment 11, a vegetable compartment 12, and a freezer compartment 13 in this order from above.

【００２２】野菜室１２と冷凍室１３とは断熱材から成
る仕切枠１７及び仕切板１９によって仕切られており、
冷凍室１３は更に断熱材から成る仕切枠１８により上部
と下部に仕切られている。冷蔵室１１と野菜室１２とは
断熱材から成る仕切枠１６及び樹脂成形品から成る仕切
板３１、３２によって仕切られている。The vegetable compartment 12 and the freezer compartment 13 are separated by a partition frame 17 and a partition plate 19 made of a heat insulating material.
The freezer compartment 13 is further divided into an upper portion and a lower portion by a partition frame 18 made of a heat insulating material. The refrigerator compartment 11 and the vegetable compartment 12 are partitioned by a partition frame 16 made of a heat insulating material and partition plates 31 and 32 made of a resin molded product.

【００２３】冷蔵室１１の下部には仕切板４６で仕切ら
れた隔離室である氷温室（第２貯蔵室）１４が設けられ
ている。冷蔵室１１には食品等を載置する複数の棚４５
が設けられている。冷蔵室１１の前面は回動式の断熱扉
３により開閉可能になっている。野菜室１２、冷凍室１
３の上部及び冷凍室１３の下部は夫々スライド式の断熱
扉４、５、６により前面が開閉可能になっており、収納
容器５４、５５、５６を引出せるようになっている。At the lower part of the refrigerator compartment 11, an ice temperature compartment (second storage compartment) 14, which is an isolation compartment partitioned by a partition plate 46, is provided. The refrigerator compartment 11 has a plurality of shelves 45 on which foods and the like are placed.
Is provided. The front surface of the refrigerator compartment 11 can be opened and closed by a rotary heat-insulating door 3. Vegetable room 12, freezing room 1
The upper part of the upper part 3 and the lower part of the freezer compartment 13 are openable and closable on the front side by sliding heat insulating doors 4, 5, 6, respectively, so that the storage containers 54, 55, 56 can be drawn out.

【００２４】冷凍室１３の後部には圧縮機２０が配され
ており、圧縮機２０は冷気通路２３、２９内に配される
冷却器２１、２５に接続されて冷凍サイクルが構成され
ている。冷凍サイクルの回路図を図３に示すと、圧縮機
２０には凝縮器７１が連結されており、矢印Ａ１のよう
に冷媒がキャピラリーチューブ７２、７３及び冷却器２
５を通って圧縮機２０に戻る第１の冷凍サイクルが構成
されている。また、矢印Ａ２のように冷媒がキャピラリ
ーチューブ７２、７４及び冷却器２１を通って圧縮機２
０に戻る第２の冷凍サイクルが構成されている。７７は
凝縮器７１を冷却する冷却ファンである。A compressor 20 is disposed at the rear of the freezer compartment 13, and the compressor 20 is connected to coolers 21 and 25 disposed in cool air passages 23 and 29 to form a refrigeration cycle. FIG. 3 shows a circuit diagram of a refrigeration cycle. A condenser 71 is connected to the compressor 20, and refrigerant flows through the capillary tubes 72 and 73 and the cooler 2 as indicated by an arrow A1.
A first refrigeration cycle returning to the compressor 20 through 5 is constituted. Further, as indicated by an arrow A2, the refrigerant passes through the capillary tubes 72 and 74 and the cooler 21 and the compressor 2
A second refrigeration cycle returning to zero is configured. 77 is a cooling fan for cooling the condenser 71.

【００２５】第１の冷凍サイクルと第２の冷凍サイクル
とは並列に構成され、開閉弁７８を開くと第１の冷凍サ
イクルと第２の冷凍サイクルとが同時に運転される。従
って、冷却器２１、２５による冷却が行われ、送風機２
２、２６の駆動により冷凍室１３及び冷蔵室１１に冷気
が送出される。The first refrigeration cycle and the second refrigeration cycle are configured in parallel. When the on-off valve 78 is opened, the first refrigeration cycle and the second refrigeration cycle are simultaneously operated. Therefore, cooling by the coolers 21 and 25 is performed, and the blower 2
The drive of 2 and 26 sends out cold air to the freezer compartment 13 and the refrigerator compartment 11.

【００２６】開閉弁７８を閉じると、第２の冷凍サイク
ルが運転され、冷却器２１による冷却が行われて送風機
２２の駆動により冷凍室１３のみの冷却が行われる。冷
蔵室１１と冷凍室１３とのそれぞれに専用の冷却器２
５、２１を設けているので、冷却器２５の冷却温度を高
く設定して冷却器２５、部材４２及び冷蔵室１１内の結
露や氷結を抑制することができるようになっている。ま
た、冷蔵室１１及び野菜室１２の室内温度が所定範囲内
にある場合には、圧縮機２０及び冷却ファン７７を出力
を下げて第２の冷凍サイクルを運転することにより、省
エネルギー化を図ることができるようになっている。When the on-off valve 78 is closed, the second refrigeration cycle is operated, the cooling by the cooler 21 is performed, and the cooling of only the freezing compartment 13 is performed by the drive of the blower 22. A dedicated cooler 2 for each of the refrigerator compartment 11 and the freezer compartment 13
Since the cooling units 5 and 21 are provided, the cooling temperature of the cooling unit 25 can be set high to prevent dew condensation and icing in the cooling unit 25, the member 42, and the refrigerator compartment 11. When the indoor temperatures of the refrigerator compartment 11 and the vegetable compartment 12 are within a predetermined range, the compressor 20 and the cooling fan 77 are reduced in output to operate the second refrigeration cycle, thereby conserving energy. Is available.

【００２７】更に、冷却器２１、２５を並列に配してい
るので、冷媒の流通する配管接続を簡素化することがで
きる。即ち、溶接箇所の多くを圧縮機２０が配される機
械室内に設けることができ生産性やメンテナンス性が向
上する。尚、７５、７６は冷蔵室１１及び冷凍室１３内
の温度を検知する温度センサであり、温度センサ７５、
７６の検知によって圧縮機２０が駆動されるようになっ
ている。Further, since the coolers 21 and 25 are arranged in parallel, the connection of the piping through which the refrigerant flows can be simplified. That is, many of the welding locations can be provided in the machine room in which the compressor 20 is disposed, so that productivity and maintainability are improved. Reference numerals 75 and 76 denote temperature sensors for detecting the temperatures in the refrigerator compartment 11 and the freezer compartment 13, respectively.
The compressor 20 is driven by the detection at 76.

【００２８】開閉弁７８に替えて、図中、破線で示す三
方弁７９を設けてもよい。三方弁７９の切替によって第
１の冷凍サイクルと第２の冷凍サイクルとを同時に運転
する場合と、第１、第２の冷凍サイクルの一方を運転す
る場合とに切り替えて冷蔵室１１及び冷凍室１３を冷却
することができる。Instead of the on-off valve 78, a three-way valve 79 shown by a broken line in the figure may be provided. By switching the three-way valve 79, the first refrigeration cycle and the second refrigeration cycle are simultaneously operated and the one of the first and second refrigeration cycles is operated. Can be cooled.

【００２９】図１、図２において、冷却器２１、２５の
下方には冷却器２１、２５の除霜を行う除霜ヒータ６
１、６２が設けられている。６３、６４はドレン受け部
材である。冷却器２１は冷気通路２３内に配されてお
り、冷気通路２３の壁面は内箱２ｂと樹脂成形品から成
るエバカバー３３とにより形成されている。送風機２２
は冷気通路２３内の冷却器２１の上方に配されている。
冷気通路２３は冷凍室１３の背面板３３ａに設けられた
吐出口１３ａ、１３ｃ及び戻り口１３ｂによって冷凍室
１３と連通している。1 and 2, a defrost heater 6 for defrosting the coolers 21 and 25 is provided below the coolers 21 and 25.
1, 62 are provided. 63 and 64 are drain receiving members. The cooler 21 is arranged in the cool air passage 23, and the wall surface of the cool air passage 23 is formed by the inner box 2b and the evaporative cover 33 made of a resin molded product. Blower 22
Is disposed above the cooler 21 in the cool air passage 23.
The cool air passage 23 communicates with the freezer compartment 13 through discharge ports 13a, 13c and a return port 13b provided on the back plate 33a of the freezer compartment 13.

【００３０】冷却器２５は冷気通路２９内に配され、送
風機２６は冷却器２５の上方に配されている。冷気通路
２９は冷却器２５により生成された冷気を冷蔵室１１に
導く冷気吐出通路２７（第１冷気吐出通路）と、冷蔵室
１１を通って野菜室１２から冷気を冷却器２５に戻す冷
気戻り通路２８とから成っている。The cooler 25 is arranged in the cool air passage 29, and the blower 26 is arranged above the cooler 25. The cool air passage 29 includes a cool air discharge passage 27 (first cool air discharge passage) that guides the cool air generated by the cooler 25 to the refrigerator compartment 11, and a cool air return that returns the cool air from the vegetable compartment 12 to the cooler 25 through the refrigerator compartment 11. And a passage 28.

【００３１】冷気戻り通路２８の壁面は冷蔵室１１及び
氷温室１４の背壁を形成する部材４２と内箱２ｂにより
形成されている。冷気吐出通路２７は隔壁２７ａにより
前後に分割され、部材４２と隔壁２７ａとから成る前部
２７ｄと、隔壁２７ａと内箱２ｂとから成る後部２７ｅ
とを有している。隔壁２７ａにより冷却器２５と圧力室
２７ｂとが隔離され、隔壁２７ａに送風機２６が取り付
けられている。部材４２は図４に示すようにアルミニウ
ムやステンレス等の金属板を板金加工して形成さてい
る。The wall surface of the cool air return passage 28 is formed by a member 42 forming a back wall of the refrigerator compartment 11 and the ice compartment 14 and the inner box 2b. The cool air discharge passage 27 is divided back and forth by a partition wall 27a, and a front portion 27d including a member 42 and a partition wall 27a, and a rear portion 27e including a partition wall 27a and an inner box 2b.
And The cooler 25 and the pressure chamber 27b are separated by the partition 27a, and the blower 26 is attached to the partition 27a. The member 42 is formed by sheet metal working of a metal plate such as aluminum or stainless steel as shown in FIG.

【００３２】冷蔵室１１の天井部分には冷気吐出通路２
７と連通する天井冷気吐出通路５７が設けられている。
天井冷気吐出通路５７の壁面は樹脂成形品から成る上面
板４３と内箱２ｂとにより形成されている。部材４２及
び上面板４３には吐出口４２ａ、４３ａが設けられてい
る。冷蔵室１１の天井中央部には透明な照明カバー５３
で覆われた照明灯５１が設けられ、冷蔵室１１内を照明
するようになっている。A cool air discharge passage 2 is provided at the ceiling of the refrigerator compartment 11.
7 is provided with a ceiling cool air discharge passage 57.
The wall surface of the ceiling cool air discharge passage 57 is formed by the upper plate 43 made of a resin molded product and the inner box 2b. Discharge ports 42a and 43a are provided in the member 42 and the upper surface plate 43. A transparent lighting cover 53 is provided at the center of the ceiling of the refrigerator compartment 11.
An illumination lamp 51 covered with is provided to illuminate the refrigerator compartment 11.

【００３３】冷気戻り通路２８の左方には、製氷器６７
に給水するために貯水する給水タンク６６が配されてお
り、右方には送風機２６の吐出側から分岐して氷温室１
４の背面に冷気を導く氷温ダクト６０が設けられてい
る。また、野菜室１２の背後には、圧縮機２０、送風機
２３、２６等を駆動するための電気回路５８が断熱材２
ｃを介して設置されている。To the left of the cold air return passage 28, an ice maker 67
A water supply tank 66 for storing water is provided to supply water to the ice greenhouse 1 on the right side, branching from the discharge side of the blower 26.
An ice temperature duct 60 that guides cool air is provided on the back surface of the air conditioner 4. Behind the vegetable compartment 12, an electric circuit 58 for driving the compressor 20, the blowers 23 and 26 and the like is provided with an insulating material 2.
c.

【００３４】上記構成の冷蔵庫１において、圧縮機２０
の駆動により第２の冷凍サイクルが運転されると、冷却
器２１による冷却が行われ、送風機２２が駆動される。
これにより、冷凍室１３内の空気は戻り口１３ｂから冷
気通路２３に吸引される。該空気は冷却器２１と熱交換
して冷却され、吐出口１３ａ、１３ｃから冷凍室１３に
吐出される。これにより、冷凍室１３内が例えば−２０
℃に冷却される。In the refrigerator 1 having the above configuration, the compressor 20
When the second refrigeration cycle is operated by the drive of, cooling by the cooler 21 is performed, and the blower 22 is driven.
Thereby, the air in the freezing compartment 13 is sucked into the cool air passage 23 from the return port 13b. The air is cooled by exchanging heat with the cooler 21 and discharged to the freezing compartment 13 through the discharge ports 13a and 13c. As a result, the inside of the freezer compartment 13 becomes, for example, -20
Cool to ° C.

【００３５】第１の冷凍サイクルの運転により送風機２
６が駆動されると、野菜室１２内の空気は戻り口１２ｂ
から冷気戻り通路２８に吸引される。該空気は冷却器２
５と熱交換して冷却され、冷気吐出通路２７内を流通し
て吐出口４２ａ、４３ａから冷蔵室１１内に吐出され
る。By operating the first refrigeration cycle, the blower 2
6 is driven, the air in the vegetable compartment 12 returns to the return port 12b.
Is sucked into the cool air return passage 28. The air is cooled 2
The cooling air flows through the cool air discharge passage 27 and is discharged from the discharge ports 42 a and 43 a into the refrigerator compartment 11.

【００３６】冷蔵室１１内の冷気は棚４５の間や棚４５
の前面を通り連通路１２ａを介して野菜室１２内の前方
に吐出される。そして、収納容器５４の前面から下方を
通って野菜室１２内を冷却し、戻り口１２ｂから冷気戻
り通路２８に導かれて冷気が循環する。吐出口４２ａ、
４３ａから冷蔵室１１に吐出された冷気は、野菜室１２
に流入するまでの間に食品等に冷熱を奪われる。これに
より、冷蔵室１１内は例えば３℃に冷却され、野菜室１
２内は例えば５℃に冷却される。The cold air in the refrigerator compartment 11 is supplied between the shelves 45 and between the shelves 45.
Is discharged to the front inside the vegetable compartment 12 through the communication passage 12a. Then, the inside of the vegetable compartment 12 is cooled down from the front of the storage container 54, and the cool air is circulated from the return port 12b to the cool air return passage 28. Discharge port 42a,
The cool air discharged from the refrigerator compartment 43a to the refrigerator compartment 11 is
Food is deprived of cold heat before it flows into the area. Thereby, the inside of the refrigerator compartment 11 is cooled to, for example, 3 ° C.
2 is cooled to, for example, 5 ° C.

【００３７】また、送風機２６から送出される冷気の一
部は直ちに分岐して氷温ダクト６０を介して吐出口６０
ａから氷温室１４に適量吐出される。これにより、氷温
室１４内の温度を例えば−１℃に維持できるようになっ
ている。氷温室１４内に貯蔵される貯蔵物に応じて氷温
室１４内に吐出される冷気量を可変して室温を調節して
もよい。A part of the cool air sent from the blower 26 is immediately branched off and discharged through the ice temperature duct 60 to the discharge port 60.
A suitable amount is discharged into the ice greenhouse 14 from a. Thereby, the temperature in the ice greenhouse 14 can be maintained at, for example, -1 ° C. The room temperature may be adjusted by changing the amount of cool air discharged into the ice temperature chamber 14 in accordance with the items stored in the ice temperature chamber 14.

【００３８】例えば、冷気量を少量にして室温を０℃付
近にするとチルド室となり、冷気量を更に少なくして室
温を５℃付近にすると野菜室にもなる。冷気量の可変
は、図６に示すように、吐出口６０ａを覆う扉６０ｂに
よる開閉により行うことができる。また、氷温ダクト６
０の断面積を可変して冷気量の調節を行うようにしても
よいが、吐出口６０ａの面積を可変する方が吐出される
冷気量を使用者が容易に判断できるのでより望ましい。For example, when the amount of cold air is small and the room temperature is around 0.degree. C., the room becomes a chilled room. When the amount of cold air is further reduced and the room temperature is around 5.degree. As shown in FIG. 6, the amount of cool air can be changed by opening and closing with a door 60b that covers the discharge port 60a. Ice temperature duct 6
The amount of cool air may be adjusted by changing the cross-sectional area of 0, but it is more preferable to change the area of the discharge port 60a because the user can easily determine the amount of cool air to be discharged.

【００３９】本実施形態の冷蔵庫は冷蔵室１１及び野菜
室１２を一つの貯蔵室（第１貯蔵室）とみなすことがで
き、その概略構成は図７に示すようになる。冷却器２５
で生成された冷気の温度は例えば−２０℃になってい
る。該冷気は送風機２６により矢印Ａ１の方向に冷気吐
出通路２７（第１冷気吐出通路）を通る。In the refrigerator of the present embodiment, the refrigerator compartment 11 and the vegetable compartment 12 can be regarded as one storage room (first storage room), and the schematic configuration is as shown in FIG. Cooler 25
The temperature of the cold air generated in the step is, for example, −20 ° C. The cool air passes through the cool air discharge passage 27 (first cool air discharge passage) in the direction of arrow A1 by the blower 26.

【００４０】この時、部材４２は金属から成るので、冷
気の冷熱の一部が部材４２と熱交換されて部材４２の温
度が例えば約−５℃になり、貯蔵室１０内にＢ１のよう
に冷熱が放出される。このため、冷気吐出通路２７及び
天井冷気吐出通路５７を通って吐出口４２ａ、４３ａ
（図１参照）から矢印Ａ２の方向に吐出される冷気の温
度は例えば約−１０℃になる。At this time, since the member 42 is made of metal, a part of the cold heat of the cool air is exchanged with the member 42, and the temperature of the member 42 becomes, for example, about -5 ° C. Cold heat is released. For this reason, the discharge ports 42a and 43a pass through the cool air discharge passage 27 and the ceiling cool air discharge passage 57.
The temperature of the cool air discharged in the direction of arrow A2 from (see FIG. 1) is, for example, about −10 ° C.

【００４１】また、氷温ダクト６０（第２冷気吐出通
路）を通って矢印Ａ４の方向に吐出口６０ａから氷温室
１４（第２貯蔵室）に冷気が吐出される。この冷気によ
る冷熱も氷温ダクト６０を通る際に部材４２を介して矢
印Ｂ２のように貯蔵室１０内に放出される。貯蔵室１０
内に吐出された冷気及び放出された冷熱は貯蔵室１０内
の空気と熱交換して、貯蔵室１０（冷蔵室１１）内が例
えば約３℃に冷却される。Further, cool air is discharged from the discharge port 60a to the ice temperature chamber 14 (second storage chamber) in the direction of arrow A4 through the ice temperature duct 60 (second cool air discharge passage). The cold generated by the cold air is also released into the storage room 10 via the member 42 as indicated by the arrow B2 when passing through the ice temperature duct 60. Storage room 10
The cool air discharged into the inside and the discharged cold heat exchange heat with the air in the storage room 10, and the inside of the storage room 10 (refrigeration room 11) is cooled to, for example, about 3 ° C.

【００４２】そして、貯蔵室１０内の冷気が戻り口１２
ｂから矢印Ａ３の方向に冷気戻り通路２８に流入する。
この時、貯蔵室１０内の冷気との熱交換が完全には行わ
れないため、冷気戻り通路２８に流入する冷気の温度は
例えば約−１℃になっている。Then, the cool air in the storage room 10 is returned to the return port 12.
b flows into the cool air return passage 28 in the direction of arrow A3.
At this time, since the heat exchange with the cool air in the storage room 10 is not completely performed, the temperature of the cool air flowing into the cool air return passage 28 is, for example, about -1 ° C.

【００４３】部材４２は冷気戻り通路２８の前面まで延
びて設けられているので、冷気戻り通路２８に流入する
冷気による冷熱が貯蔵室１０内に放出される。従って、
より効率良く貯蔵室１０内を冷却するとともに、冷却器
２５の蒸発温度を上昇させることができる。これによ
り、冷却器２５の動作係数が増加し、圧縮機２０（図１
参照）の仕事量に対して吸収熱量が大きくなるため、省
エネルギー化を図ることができる。尚、各室の温度は冷
却器２５の蒸発温度、冷却器２５の冷却能力、送風機２
６の送風量及び各室の容積等により定められる。Since the member 42 is provided so as to extend to the front surface of the cool air return passage 28, the cold generated by the cool air flowing into the cool air return passage 28 is discharged into the storage room 10. Therefore,
The inside of the storage room 10 can be cooled more efficiently, and the evaporation temperature of the cooler 25 can be increased. Thereby, the operation coefficient of the cooler 25 increases, and the compressor 20 (FIG. 1)
(See Reference Work), the amount of heat absorbed becomes large, so that energy can be saved. The temperature of each chamber is determined by the evaporating temperature of the cooler 25, the cooling capacity of the cooler 25, the blower 2
6 and the volume of each chamber.

【００４４】前述したように、氷温ダクト６０を通る冷
気による冷熱の一部は部材４２と熱交換されて貯蔵室１
０内に放出される。従って、冷却器２５から冷気吐出通
路２７と氷温ダクト６０とに分岐して冷蔵室１１内に吐
出される冷気量が減少しても、冷気吐出通路２７だけで
なく氷温ダクト６０を通る冷気の冷熱によっても冷蔵室
１１内を冷却することができる。その結果、冷却効率を
向上させることができる。しかも、部材４２の全面から
冷熱を放出するため、室内の均一な冷却が可能となる。As described above, a part of the cold heat generated by the cool air passing through the ice temperature duct 60 is exchanged with the member 42 and the storage room 1 is cooled.
Released within 0. Therefore, even if the amount of cool air branched from the cooler 25 to the cool air discharge passage 27 and the ice temperature duct 60 and discharged into the refrigerator compartment 11 decreases, the cool air passing not only through the cool air discharge passage 27 but also through the ice temperature duct 60 can be used. The inside of the refrigerator compartment 11 can be cooled also by the cold heat. As a result, the cooling efficiency can be improved. In addition, since the cooling heat is emitted from the entire surface of the member 42, the room can be uniformly cooled.

【００４５】尚、本実施形態に限られず、金属から成る
部材４２に替えて冷熱を伝えて放出する部材を設けるこ
とにより上記と同様の効果を得ることができる。例え
ば、部材４２は冷蔵室１１や冷気通路２９の内壁を構成
する樹脂成形品から成る内箱２ｂよりも熱伝導性の高い
材料であればよく、セラミック材料や金属フィラーを含
浸した樹脂材料等を使用してもよい。また、部材４２の
厚みが厚い場合は蓄冷能力が上がり、強度も増加する。
厚みが薄い場合は冷熱の放出効率が向上し、軽量化にも
有利である。そのため、目的に応じて薄板材や厚板材を
適時適所に選択して設ければよい。The present invention is not limited to this embodiment, and the same effect as described above can be obtained by providing a member for transmitting and discharging cold heat instead of the member 42 made of metal. For example, the member 42 may be made of a material having a higher thermal conductivity than the inner box 2b made of a resin molded product forming the inner wall of the refrigerator compartment 11 or the cool air passage 29, and may be made of a ceramic material or a resin material impregnated with a metal filler. May be used. When the thickness of the member 42 is large, the cold storage capacity is increased, and the strength is also increased.
When the thickness is small, the efficiency of discharging cold heat is improved, which is advantageous for weight reduction. Therefore, a thin plate or a thick plate may be selected and provided at an appropriate time in accordance with the purpose.

【００４６】部材４２の表面には凹凸形状をプレス加工
等により形成してもよい。このようにすると、部材４２
の表面積を増加させることができ、畜冷する量及び冷熱
放出量が増加してより均一な冷却を行うことができる。
凹凸形状は線状に連続した形状にすることにより部材４
２の強度を向上させることができる。An uneven shape may be formed on the surface of the member 42 by press working or the like. By doing so, the member 42
Surface area can be increased, and the amount of chilling and the amount of cold heat released can be increased to perform more uniform cooling.
The concavo-convex shape is a linear shape, so that
2 can be improved.

【００４７】また、部材４２を図５に示すようなゼリー
状や液状の保冷材４２ｃを金属等の包装材４２ｆ、４２
ｇにより封入した蓄冷部材にしてもよい。このようにす
ると、部材４２は冷気通路２９内を流通する冷気の冷熱
でより蓄冷され、冷蔵室１１内の温度分布に応じて冷熱
として放出する。従って、冷蔵室１１が均一に冷却され
るようになる。The member 42 is replaced with a jelly-like or liquid cooling material 42c as shown in FIG.
It may be a cold storage member sealed with g. In this way, the member 42 is stored more cold by the cool heat of the cool air flowing through the cool air passage 29, and is released as cool heat according to the temperature distribution in the refrigerator compartment 11. Therefore, the refrigerator compartment 11 is uniformly cooled.

【００４８】更に、蓄冷部材により圧縮機２０の停止中
や冷気通路２９内の冷気温度の変動に対して吸熱や放熱
を行い、冷気通路２９内の冷気温度を一定に維持するこ
とができる。そして、冷蔵室１１内の温度を安定して均
一に一定の温度に保つことができる。Further, the cold storage member absorbs and radiates heat during the stop of the compressor 20 and the fluctuation of the cool air temperature in the cool air passage 29, so that the cool air temperature in the cool air passage 29 can be kept constant. Then, the temperature in the refrigerator compartment 11 can be stably and uniformly maintained at a constant temperature.

【００４９】図７において、冷却器２５が冷蔵室１１の
上方に配されるため、冷却器２５で生成された冷気が冷
蔵室１１内に吐出されるまでの経路が短縮される。従っ
て、冷蔵庫１の外部との熱交換による冷熱の放出が低減
され、冷却効率が向上する。In FIG. 7, since the cooler 25 is arranged above the refrigerator compartment 11, the path for the cool air generated by the cooler 25 to be discharged into the refrigerator compartment 11 is shortened. Therefore, the release of cold heat due to heat exchange with the outside of the refrigerator 1 is reduced, and the cooling efficiency is improved.

【００５０】更に、氷温室１４が冷却器２５の下方に配
されているため、冷蔵室１１及び野菜室１２（図１参
照）内の温度が所定の温度になり送風機２６及び第１の
冷凍サイクルの運転が停止されると、冷却器２５の周辺
の低温の冷気は比重が重いため氷温ダクト６０ａ内を流
下する。そして、吐出口６０ａを介して低温の冷気が氷
温室１４内に流入する。従って、第１の冷凍サイクルの
運転が停止中であっても氷温室１４の温度上昇を抑制
し、容易に氷温室１４を低温に維持できる。Further, since the ice temperature chamber 14 is arranged below the cooler 25, the temperatures in the refrigerator compartment 11 and the vegetable compartment 12 (see FIG. 1) reach predetermined temperatures, and the blower 26 and the first refrigeration cycle Is stopped, the low-temperature cold air around the cooler 25 flows down in the ice temperature duct 60a due to its heavy specific gravity. Then, low-temperature cold air flows into the ice temperature chamber 14 through the discharge port 60a. Therefore, even when the operation of the first refrigeration cycle is stopped, a rise in the temperature of the ice greenhouse 14 is suppressed, and the low temperature of the ice greenhouse 14 can be easily maintained.

【００５１】図８は前述の図７と異なる断面を示す概略
図である。貯蔵室１０の左右方向の略中央に設けられる
冷気戻り通路２８には、氷温室１４に面して開口部２８
ａが設けられている。このため上記と同様に、送風機２
６及び第１の冷凍サイクルの運転が停止されると、冷却
器２５の周辺の低温の冷気は比重が重いため冷気戻り通
路２８内を流下する。そして、開口部２８ａを介して低
温の冷気が矢印Ａ５に示すように氷温室１４内に流入す
る。従って、更に容易に氷温室１４を低温に維持でき
る。FIG. 8 is a schematic diagram showing a cross section different from that of FIG. A cold air return passage 28 provided substantially at the center in the left-right direction of the storage room 10 has an opening 28 facing the ice hot room 14.
a is provided. Therefore, as described above, the blower 2
When the operations of the sixth refrigeration cycle and the first refrigeration cycle are stopped, the low-temperature cold air around the cooler 25 flows down in the cool air return passage 28 because of its heavy specific gravity. Then, low-temperature cold air flows into the ice temperature chamber 14 through the opening 28a as indicated by an arrow A5. Accordingly, the ice greenhouse 14 can be maintained at a low temperature more easily.

【００５２】また、冷気戻り通路２８の貯蔵室１０側の
表面を部材４２により形成しているので、冷気戻り通路
２８を矢印Ａ６のように流下した冷気による冷熱が部材
４２を介して貯蔵室１０内に放出される（Ｂ３）。これ
により、貯蔵室１０内の温度上昇を抑制することができ
る。Since the surface of the cold air return passage 28 on the side of the storage room 10 is formed by the member 42, the cold generated by the cool air flowing down the cool air return passage 28 as indicated by the arrow A 6 is transmitted through the member 42 to the storage room 10. (B3). Thereby, the temperature rise in the storage room 10 can be suppressed.

【００５３】前述の図２において、上記したように給水
タンク６６が冷蔵室１１の左端に配置され、氷温ダクト
６０が冷蔵室１１の右端に配置されている。従って、氷
温ダクト６０と給水タンク６６とが離れた位置に配置さ
れ氷温ダクト６０を通る低温の冷気による給水タンク６
６内の貯水の凍結を防止することができる。この時、氷
温ダクト６０と給水タンク６６との間には昇温された冷
気が通る冷気戻り通路２８が配されているため、給水タ
ンク６６内の貯水を凍結させることはない。In FIG. 2, the water supply tank 66 is disposed at the left end of the refrigerator compartment 11 and the ice temperature duct 60 is disposed at the right end of the refrigerator compartment 11 as described above. Therefore, the ice temperature duct 60 and the water supply tank 66 are arranged at a distance from each other, and the water supply tank 6 by low-temperature cold air passing through the ice temperature duct 60 is provided.
6 can be prevented from freezing. At this time, since the cold air return passage 28 through which the heated cold air passes is arranged between the ice temperature duct 60 and the water supply tank 66, the water stored in the water supply tank 66 is not frozen.

【００５４】また、氷温ダクト６０と給水タンク６６と
の間に冷気戻り通路２８を設けて、氷温ダクト６０と冷
気戻り通路２８が隣接するため、氷温ダクト６０の前面
に配される部材４２と冷気戻り通路２８の前面に配され
る部材４２とを共通にすることができ部品点数を削減す
ることができる。Further, since the cool air return passage 28 is provided between the ice temperature duct 60 and the water supply tank 66 and the ice temperature duct 60 and the cool air return passage 28 are adjacent to each other, a member disposed in front of the ice temperature duct 60 is provided. 42 and the member 42 arranged on the front surface of the cool air return passage 28 can be made common, and the number of parts can be reduced.

【００５５】次に、図９は第２実施形態の冷蔵庫を示す
概略図である。前述の図７の第１実施形態と同一の部分
については同一の符号を付している、第１実施形態と異
なる点は部材４２の冷気通路２９及び氷温ダクト６０側
の表面に断熱材６８を設けている点である。その他の構
成は第１実施形態と同様である。Next, FIG. 9 is a schematic view showing a refrigerator according to a second embodiment. The same parts as those in the first embodiment of FIG. 7 described above are denoted by the same reference numerals. The difference from the first embodiment is that a heat insulating material 68 is provided on the surface of the member 42 on the side of the cold air passage 29 and the ice temperature duct 60. Is provided. Other configurations are the same as those of the first embodiment.

【００５６】本実施形態によると、冷気吐出通路２７及
び氷温ダクト６０を通る冷気の温度と冷蔵室１１内の温
度との差が大きい場合に、部材４２の表面に生じる結露
を断熱材６８により防止することができる。また、氷温
ダクト６０から貯蔵室１０内に放出される冷熱量は減少
するが、冷気の昇温を抑制して氷温室１４を容易に低温
に維持することができる。断熱材６８を冷気吐出通路２
７及び氷温ダクト６０のいずれか一方に設けてもよい。According to the present embodiment, when the difference between the temperature of the cool air passing through the cool air discharge passage 27 and the ice temperature duct 60 and the temperature inside the refrigerator compartment 11 is large, the condensation formed on the surface of the member 42 is reduced by the heat insulating material 68. Can be prevented. In addition, although the amount of cold heat released from the ice temperature duct 60 into the storage room 10 decreases, the temperature of the cold air can be suppressed and the ice temperature room 14 can be easily maintained at a low temperature. The heat insulating material 68 is connected to the cool air discharge passage 2
7 and the ice temperature duct 60.

【００５７】尚、本発明において、部材４２を冷気吐出
通路側と氷温ダクト側とに一体に形成しているものに関
しては、必要な部分にのみ部材４２を分断して配しても
よい。このようにしても、部材４２が配された部分では
上記と同様の効果を得ることができる。In the present invention, when the member 42 is integrally formed on the side of the cold air discharge passage and the side of the ice temperature duct, the member 42 may be divided and disposed only at a necessary portion. Even in this case, the same effect as described above can be obtained in the portion where the member 42 is disposed.

【００５８】また、冷却器２１、２５として蒸発器を用
いているが、ペルチェ方式やその他の冷却方式による冷
却器を用いても同様の効果を得ることができる。また、
冷却器２１、２５は直列方式の冷凍サイクルを用いても
同様の効果を得ることができ、１つの冷却器により冷凍
室と冷蔵室との両方を冷却する場合であっても同様の効
果を得ることができる。Although the evaporators are used as the coolers 21 and 25, the same effect can be obtained by using a Peltier cooler or another cooler. Also,
The coolers 21 and 25 can obtain the same effect by using a series-type refrigeration cycle. The same effect can be obtained even when both the freezing room and the refrigerating room are cooled by one cooler. be able to.

【００５９】[0059]

【発明の効果】本発明によると、冷却器で生成された冷
気が第１、第２冷気吐出通路に分岐して第１貯蔵室内に
吐出される冷気量が減少しても、第１冷気吐出通路を通
る冷気の冷熱を部材により第１貯蔵室内に放出して第１
貯蔵室を冷却することができるので、冷却効率を向上さ
せることができるとともに、部材を伝わって部材の全面
から冷熱を放出するため、室内の均一な冷却が可能とな
る。更に、第２冷気吐出通路を通る冷気の冷熱をも部材
により第１貯蔵室内に放出して第１貯蔵室を冷却するこ
とができるので、より冷却効率を向上させることができ
る。According to the present invention, even if the amount of cool air generated by the cooler branches to the first and second cool air discharge passages and is discharged into the first storage chamber, the first cool air discharge is performed. The cold heat of the cool air passing through the passage is released into the first storage chamber by the member, and
Since the storage room can be cooled, the cooling efficiency can be improved, and since the cooling heat is released from the entire surface of the member through the member, the room can be uniformly cooled. Further, since the cool heat of the cool air passing through the second cool air discharge passage can also be released into the first storage chamber by the member to cool the first storage chamber, the cooling efficiency can be further improved.

【００６０】また本発明によると、部材を第１貯蔵室及
び第１、第２冷気吐出通路の壁面を形成する他の部分の
材料よりも熱伝導率が大きい材料により形成することに
よって、簡単に第１貯蔵室内に冷熱を放出することがで
きる。Further, according to the present invention, the member is formed of a material having a higher thermal conductivity than the material of the other portions forming the wall surfaces of the first storage chamber and the first and second cold air discharge passages, thereby simplifying the member. Cold heat can be released into the first storage chamber.

【００６１】また本発明によると、冷却器が第１貯蔵室
の上方に配されるため、冷却器で生成された冷気が第１
貯蔵室内に吐出されるまでの経路が短縮される。従っ
て、外部との熱交換による冷熱の放出が低減され、冷却
効率が向上する。更に、第２貯蔵室が冷却器の下方に配
されているので、冷気の循環手段が停止されても冷却器
の周辺の低温の冷気は比重が重いため第２冷気吐出通路
内を流下して第２貯蔵室内に流入する。従って、第２貯
蔵室の温度上昇を抑制し、容易に低温を維持できる。Further, according to the present invention, since the cooler is disposed above the first storage room, the cool air generated by the cooler is cooled by the first cooler.
The route to discharge into the storage chamber is shortened. Therefore, the release of cold heat due to heat exchange with the outside is reduced, and the cooling efficiency is improved. Furthermore, since the second storage room is arranged below the cooler, even if the cool air circulation means is stopped, the low-temperature cool air around the cooler has a high specific gravity and flows down in the second cool air discharge passage. It flows into the second storage room. Therefore, the temperature rise in the second storage room can be suppressed, and the low temperature can be easily maintained.

【００６２】また本発明によると、給水タンクが第１貯
蔵室の一端に配置され、第２冷気吐出通路が第１貯蔵室
の他端に配置されているので、第２冷気吐出通路を通る
低温の冷気による給水タンク内の貯水の凍結を防止する
ことができる。この時、第２冷気吐出通路と給水タンク
との間には昇温された冷気が通る冷気戻り通路が配され
ているため、給水タンク内の貯水を凍結させることはな
い。According to the present invention, the water supply tank is disposed at one end of the first storage chamber and the second cool air discharge passage is disposed at the other end of the first storage chamber. Of the water stored in the water supply tank due to the cold air can be prevented. At this time, since the cool air return passage through which the heated cool air passes is arranged between the second cool air discharge passage and the water supply tank, the water stored in the water supply tank is not frozen.

【００６３】また、第２冷気吐出通路と給水タンクとの
間に冷気戻り通路を設けているため、第２冷気吐出通路
との前面に配される部材と、冷気戻り通路の前面に配さ
れる部材とを共通にすることができ部品点数を削減する
ことができる。Further, since the cool air return passage is provided between the second cool air discharge passage and the water supply tank, a member disposed in front of the second cool air discharge passage and a front surface of the cool air return passage are provided. The members can be shared, and the number of parts can be reduced.

【００６４】また本発明によると、冷気戻り通路に第２
貯蔵室に面して開口部が設けられているので、冷気の循
環手段が停止されても冷却器の周辺の低温の冷気は比重
が重いため冷気戻り通路内を流下して第２貯蔵室内に流
入する。従って、第２貯蔵室の温度上昇を抑制し、更に
容易に低温を維持できる。According to the present invention, the second return passage is provided in the cool air return passage.
Since the opening is provided facing the storage room, even if the cooling means of the cool air is stopped, the low-temperature cool air around the cooler has a high specific gravity and flows down in the cool air return passage to enter the second storage room. Inflow. Therefore, the temperature rise in the second storage room can be suppressed, and the low temperature can be more easily maintained.

【００６５】また本発明によると、第２冷気吐出通路の
断面積または吐出口の開口面積を可変できるようにして
いるので、第２貯蔵室内に吐出される冷気量を容易に可
変して、第２貯蔵室内に貯蔵される貯蔵物に応じて室温
を調節することができる。According to the present invention, the cross-sectional area of the second cool air discharge passage or the opening area of the discharge port can be changed, so that the amount of cool air discharged into the second storage chamber can be easily changed, (2) Room temperature can be adjusted according to the storage material stored in the storage room.

【００６６】また本発明によると、第２冷気吐出通路の
前記部材に面する側に断熱材を配しているので、第２冷
気吐出通路を通る冷気の温度と第１貯蔵室内の温度との
差が大きい場合に、部材の表面に生じる結露を防止する
ことができる。また、第２冷気吐出通路から第１貯蔵室
内に放出される冷熱量は減少するが、冷気の昇温を抑制
して第２貯蔵室を容易に低温に維持することができる。Further, according to the present invention, since the heat insulating material is provided on the side of the second cool air discharge passage facing the member, the temperature of the cool air passing through the second cool air discharge passage and the temperature in the first storage chamber are different. When the difference is large, it is possible to prevent dew condensation occurring on the surface of the member. In addition, although the amount of cold heat released from the second cool air discharge passage into the first storage chamber is reduced, the temperature of the cool air can be suppressed and the second storage chamber can be easily maintained at a low temperature.

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

【図１】本発明の第１実施形態の冷蔵庫を示す側面
断面図である。FIG. 1 is a side sectional view showing a refrigerator according to a first embodiment of the present invention.

【図２】本発明の第１実施形態の冷蔵庫を示す正面
図である。FIG. 2 is a front view showing the refrigerator according to the first embodiment of the present invention.

【図３】本発明の第１実施形態の冷蔵庫の冷却サイ
クルを示す回路図である。FIG. 3 is a circuit diagram showing a cooling cycle of the refrigerator according to the first embodiment of the present invention.

【図４】本発明の第１実施形態の冷蔵庫の部材を示
す斜視図である。FIG. 4 is a perspective view showing members of the refrigerator according to the first embodiment of the present invention.

【図５】本発明の第１実施形態の冷蔵庫の部材の他
の構成を示す斜視図である。FIG. 5 is a perspective view showing another configuration of the member of the refrigerator according to the first embodiment of the present invention.

【図６】本発明の第１実施形態の冷蔵庫の氷温ダク
トの吐出口の動作を説明する概略正面図である。FIG. 6 is a schematic front view illustrating the operation of the discharge port of the ice temperature duct of the refrigerator according to the first embodiment of the present invention.

【図７】本発明の第１実施形態の冷蔵庫の一側面断
面を示す概略図である。FIG. 7 is a schematic view showing a cross section of one side of the refrigerator according to the first embodiment of the present invention.

【図８】本発明の第１実施形態の冷蔵庫の他の側面
断面を示す概略図である。FIG. 8 is a schematic view showing another side cross section of the refrigerator according to the first embodiment of the present invention.

【図９】本発明の第２実施形態の冷蔵庫を示す概略
図である。FIG. 9 is a schematic view showing a refrigerator according to a second embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１冷蔵庫２ａ外箱２ｂ内箱３、４、５、６断熱扉１１冷蔵室１２野菜室１３冷凍室１４氷温室２０圧縮機２１、２５冷却器２２、２６送風機２３、２９冷気通路２７冷気吐出通路２８冷気戻り通路４２部材５１照明灯５４、５５、５６収納容器５７天井冷気吐出通路５８電子回路６０氷温ダクト６１、６２除霜ヒータ６８断熱材７１凝縮器７２、７３、７４キャピラリーチューブ７５、７６温度センサ７７冷却用ファン７８開閉弁７９三方弁 DESCRIPTION OF SYMBOLS 1 Refrigerator 2a Outer box 2b Inner box 3, 4, 5, 6 Insulated door 11 Refrigerator room 12 Vegetable room 13 Freezer room 14 Ice warm room 20 Compressor 21, 25 Cooler 22, 26 Blower 23, 29 Cold air passage 27 Cold air discharge passage 28 Cold air return passage 42 Member 51 Illumination lamp 54, 55, 56 Storage container 57 Ceiling cool air discharge passage 58 Electronic circuit 60 Ice temperature duct 61, 62 Defrosting heater 68 Insulation material 71 Condenser 72, 73, 74 Capillary tube 75, 76 Temperature sensor 77 Cooling fan 78 On-off valve 79 Three-way valve

───────────────────────────────────────────────────── フロントページの続き (72)発明者吉村宏大阪府大阪市阿倍野区長池町22番22号シャープ株式会社内Ｆターム(参考） 3L045 AA04 BA01 CA02 CA03 CA08 CA09 DA02 EA01 FA03 GA07 HA02 KA16 PA04 ──────────────────────────────────────────────────続き Continued on the front page (72) Inventor Hiroshi Yoshimura 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka F-term (reference) 3L045 AA04 BA01 CA02 CA03 CA08 CA09 DA02 EA01 FA03 GA07 HA02 KA16 PA04

Claims

【特許請求の範囲】[Claims]

【請求項１】貯蔵物を収納する第１、第２貯蔵室と、第１、第２貯蔵室を冷却するための冷気を生成する冷却
器と、該冷気を第１、第２貯蔵室にそれぞれ導く第１、第２冷
気吐出通路と、第１、第２冷気吐出通路と第１貯蔵室との隔壁を形成
し、第１、第２冷気吐出通路内を流通する冷気による冷
熱を伝えて第１貯蔵室内に放出する部材と、を備えたことを特徴とする冷蔵庫。1. A first and a second storage room for storing a storage object, a cooler for generating cool air for cooling the first and the second storage room, and the cool air to the first and second storage rooms. The first and second cool air discharge passages, which are respectively guided, and the partition wall between the first and second cool air discharge passages and the first storage chamber, are formed, and the cool heat generated by the cool air flowing through the first and second cool air discharge passages is transmitted. And a member for discharging into the first storage chamber.

【請求項２】貯蔵物を収納する第１、第２貯蔵室と、第１、第２貯蔵室を冷却するための冷気を生成する冷却
器と、該冷気を第１、第２貯蔵室にそれぞれ導く第１、第２冷
気吐出通路と、第２冷気吐出通路と第１貯蔵室との隔壁を形成し、第２
冷気吐出通路内を流通する冷気による冷熱を伝えて第１
貯蔵室内に放出する部材と、を備えたことを特徴とする冷蔵庫。2. A first and a second storage room for storing a storage object, a cooler for generating cool air for cooling the first and the second storage room, and the cool air to the first and the second storage rooms. The first and second cool air discharge passages, which are respectively guided, and the partition wall between the second cool air discharge passage and the first storage chamber are formed.
The cold heat generated by the cold air flowing through the cold air discharge passage
A member that discharges into a storage chamber.

【請求項３】前記部材は、第１貯蔵室及び第１、第２
冷気吐出通路の壁面を形成する他の部分の材料よりも熱
伝導率が大きい材料から成ることを特徴とする請求項１
または請求項２に記載の冷蔵庫。3. The apparatus according to claim 1, wherein the member includes a first storage chamber and first and second storage chambers.
2. A material having a higher thermal conductivity than a material of another portion forming a wall surface of the cool air discharge passage.
Or the refrigerator according to claim 2.

【請求項４】前記冷却器を第１貯蔵室の上方の第１貯
蔵室に面した位置に配置するとともに、第１貯蔵室の下
方に第２貯蔵室を配置し、第１貯蔵室の冷気を前記冷却
器に戻す冷気戻り通路を設けたことを特徴とする請求項
１〜請求項３のいずれかに記載の冷蔵庫。4. The cooling device according to claim 1, wherein the cooler is disposed at a position facing the first storage room above the first storage room, and a second storage room is disposed below the first storage room. The refrigerator according to any one of claims 1 to 3, further comprising a cool air return passage for returning the air to the cooler.

【請求項５】第２貯蔵室は第１貯蔵室内に配される隔
離室から成ることを特徴とする請求項４に記載の冷蔵
庫。5. The refrigerator according to claim 4, wherein the second storage room comprises an isolation room disposed in the first storage room.

【請求項６】第１貯蔵室の左右方向の一端部に製氷を
行うための給水タンクを備え、他端部に第２冷気吐出通
路を配置するとともに中央部に前記冷気戻り通路を配し
たことを特徴とする請求項５に記載の冷蔵庫。6. A water supply tank for making ice is provided at one end in the left-right direction of the first storage room, a second cool air discharge passage is arranged at the other end, and the cool air return passage is arranged at the center. The refrigerator according to claim 5, characterized in that:

【請求項７】前記冷気戻り通路の経路途中に第２貯蔵
室に臨む開口部を設けたことを特徴とする請求項４〜請
求項６のいずれかに記載の冷蔵庫。7. The refrigerator according to claim 4, wherein an opening facing the second storage chamber is provided in the middle of the cool air return passage.

【請求項８】第２冷気吐出通路の断面積または第２冷
気吐出通路の吐出口の開口面積を可変できるようにした
ことを特徴とする請求項１〜請求項７のいずれかに記載
の冷蔵庫。8. The refrigerator according to claim 1, wherein the sectional area of the second cool air discharge passage or the opening area of the discharge port of the second cool air discharge passage can be changed. .

【請求項９】第２冷気吐出通路の前記部材に面する側
に断熱材を配したことを特徴とする請求項１〜請求項８
のいずれかに記載の冷蔵庫。9. A heat insulating material is provided on a side of said second cool air discharge passage facing said member.
The refrigerator according to any one of the above.