JP2004293990A - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
JP2004293990A
JP2004293990A JP2003089227A JP2003089227A JP2004293990A JP 2004293990 A JP2004293990 A JP 2004293990A JP 2003089227 A JP2003089227 A JP 2003089227A JP 2003089227 A JP2003089227 A JP 2003089227A JP 2004293990 A JP2004293990 A JP 2004293990A
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JP
Japan
Prior art keywords
case
storage
storage case
cool air
cold air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003089227A
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Japanese (ja)
Inventor
Shuichi Igarashi
秀一 五十嵐
Yayoi Kokuni
弥生 小國
Shigeru Niki
茂 仁木
Atsushi Kusunoki
敦 楠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Lifestyle Products and Services Corp
Original Assignee
Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Home Appliances Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Toshiba Consumer Marketing Corp, Toshiba Home Appliances Corp filed Critical Toshiba Corp
Priority to JP2003089227A priority Critical patent/JP2004293990A/en
Priority to PCT/JP2004/003370 priority patent/WO2004085938A1/en
Priority to KR1020057017563A priority patent/KR20050113237A/en
Priority to TW093108306A priority patent/TWI238239B/en
Publication of JP2004293990A publication Critical patent/JP2004293990A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00Charging, supporting, and discharging the articles to be cooled
    • F25D25/02Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024Slidable shelves
    • F25D25/025Drawers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F25D2317/0672Outlet ducts

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator, improved in a cold air circulating passage to a storage case to decrease the leakage of heat to the outside, and improved in cooling efficiency to lower the amount of power consumed. <P>SOLUTION: This refrigerator is composed of storage cases 11,12 held and fixed to the inner surface of a door 9 for closing a front opening of a storage chamber 7 and drawn as the door is opened; a cold air blowoff port 19 provided in the back of the storage chamber to introduce cold air into the storage cases; a sealing piece 23 extended from the upper part of the storage chamber to the front edge of the storage cases to shield the cold air discharged from the back from flowing outside out the case; and an outflow opening 25 provided in the back of the storage case to return the cold air circulated through the interior of the case to a cooling device, and it is characterised in that the cold air from the cold air blowoff port is made to return to the cooling device without flowing out to the front of the storage cases. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は冷蔵庫に係り、特に貯蔵室内の冷却効率を向上させる冷気流路構成の改良に関する。
【0002】
【従来の技術】
従来、冷蔵庫における本体下部に引きだし方式で設けられている貯蔵室、例えば冷凍室構成は、図6に示すように、本体の背部に設置した冷却器(53)で生成した冷気をファン(54)によって冷凍室(47)の背面の吹出口(59)から室内に吹き出し、収納されている食品類を冷却するよう構成されている。
【0003】
そして、食品類を冷却した冷気は、矢印に示すように、貯蔵ケース(51)(52)の前方上部に至り、引き出し扉(49)の内板(49a)と貯蔵ケース(52)の前面との間隙、さらに貯蔵ケース(52)の底面と貯蔵室底壁との間隙を通ってリターンダクト(66)から冷却器(53)に戻る循環をおこなっている。
【0004】
前記構成においては、食品冷却後に貯蔵ケース(52)の前方上部に至った冷気によって冷凍室(47)と上部室(45)との仕切壁前面(46a)が冷却され、内外の温度差により仕切壁前面に結露することを防止するため、防露パイプ(50)を配設しているが、この防露パイプ(50)は冷凍サイクルにおける高温冷媒パイプを利用しており、その熱によって仕切壁前面(46a)は高温に加熱されていることから、結露を防止する反面、冷凍室(47)の前部上方空気を加熱してしまい冷却効率を低下させていた。
【0005】
これを防止するために、仕切壁(46)近傍の貯蔵ケース(51)の上方間隙部分に二点鎖線で示すパッキン(63)を設け、扉ガスケット(64)側への冷気洩れを防止する構成が提案されている。(例えば、特許文献1参照)
【0006】
【特許文献1】
特開平10−96584号公報(段落[0029]および図4、図5)
【0007】
【発明が解決しようとする課題】
しかしながら、上記従来構成においては、貯蔵ケース(51)内で食品を冷却した冷気は、貯蔵ケース(51)の上部、あるいは貯蔵ケースの前壁に設けた開口(51a)から貯蔵ケース(51)と引き出し扉内板(49a)との間隙(A)を流下して貯蔵ケースの底壁、さらに高温の冷媒圧縮機(60)に対向する背面の間隙を通ってリターンダクト(66)に戻るものであり、いずれも貯蔵ケース(52)内部の冷却に寄与しない高温の貯蔵室や外気など周辺の高温部の熱影響を受けて熱漏洩が大きくなるものであった。
【0008】
本発明は上記事情を考慮してなされたものであり、貯蔵ケースに対する冷気循環経路を改善して外部への熱漏洩を減少させるとともに、冷却効率を向上させ、消費電力量を低減した冷蔵庫を提供するものである。
【0009】
【課題を解決するための手段】
上記課題を解決するため、本発明の冷蔵庫は、貯蔵室の前面開口を閉塞する扉内面に保持固定され開扉にともなって引き出される貯蔵ケースと、前記貯蔵室の背部に設けられ冷気を貯蔵ケース内に導入する冷気吹出口と、前記貯蔵室上部から貯蔵ケースの前端縁に延出し背面から吐出された冷気のケース外への流出を遮蔽するシール片と、前記貯蔵ケースの背面に設けられケース内を循環した冷気を冷却器に戻す流出開口とからなり、前記冷気吹出口からの冷気を少なくとも貯蔵ケースの前方に流出させずに冷却器に戻すようにしたことを特徴とするものである。
【0010】
この構成により、貯蔵ケース内を冷気吹出口からの冷気で直接冷却できるとともに、ケース内の循環後はケース周囲の間隙部を通らないで冷却器部に戻るため、より高温部に熱漏洩することがなく効率的な冷却をおこなうことができる。
【0011】
【発明の実施の形態】
以下、図面に基づき本発明の一実施形態について説明する。冷蔵庫要部の縦断面図である図1に示すように、断熱箱体で構成され、内部を断熱壁で区分して複数の貯蔵空間を形成した冷蔵庫本体(1)は、その上部に使用頻度が高く収納容積の最も大きい冷蔵室(2)を配置し、本体一側に回動自在に枢支した扉(3)によってその前面開口部を閉塞している。
【0012】
冷蔵室(2)の下方には、仕切り板を介して冷蔵室温よりやや高い温度に保持された野菜などを収納する野菜室(4)を設置し、野菜室(4)の下部には、製氷室や温度切替室に設定した上部室(5)およびその下部に断熱仕切壁(6)を介して冷凍室(7)をそれぞれ独立して配置している。
【0013】
これら野菜室(4)や冷凍室(7)は、その前面開口部を扉(8)(9)で閉塞するとともに、扉の内側に貯蔵室内方向に延長する図示しない枠体を取り付け、この枠体上面にそれぞれ貯蔵ケース(10)(11)を載置し、前記枠体の後端に取り付けた図示しないローラーと庫内壁に設けたレール部材などとの係合による摺動によって、貯蔵ケース(10)(11)を扉(8)(9)の開閉によって前後方向に引き出し可能に設けている。
【0014】
冷凍室(7)の背部には、前記製氷室や冷凍室などの冷凍空間へ冷気を供給して冷凍温度に冷却する冷凍用冷却器(13)を設置しており、この冷却器(13)の上部には冷気を循環させるファン(14)を配置している。
【0015】
なお、前記冷蔵室(2)や野菜室(4)などの冷蔵空間に対しても冷蔵用冷却器(15)および冷蔵用ファン(16)が野菜室(4)の背部に設置されている。
【0016】
図2に詳細を示すように、前記冷凍用冷却器(13)とファン(14)の前面は、冷凍室(7)の後壁を形成する冷却室カバー(17)で覆われているとともに、冷却器カバー(17)と冷却器(13)、ファン(14)との間には吐出ダクト(18)を形成し、吐出ダクト(18)からの冷気は、上部室(5)および下部の冷凍室(7)の室内背面に臨む位置に設けた冷気吹出口(19)に導かれ、各室内に吐出される。
【0017】
前記冷凍室(7)内の貯蔵ケースは、上ケース(11)と下ケース(12)の2段に区分して設置されており、下ケース(12)の上面開口内に比較的底を浅く形成した上ケース(11)を、周縁フランジなどを利用して重合配置している。
【0018】
上下ケース(11)(12)の上部にはケースの上面開口を覆うように蓋体(20)が冷凍室(7)の天井部に固定されており、前記冷気吹出口(19)は、蓋体(20)と上ケース(11)の背面上部との間に開口し、冷却器からの冷気を直接上ケース(11)内に吹き出すようにしている。
【0019】
上ケース(11)の前壁と下ケース(12)の前壁との間には間隙(21)を形成し、上ケース(11)の前端上部を前方に折曲して下ケース(12)に当接させるとともに、折曲部には冷気通過口(22)を開口して下ケース(12)へ冷気を矢印のように流入させるようにしている。
【0020】
しかして、前記蓋体(20)の前端縁には、下ケース(12)の全幅に亙って前部下方へシール片(23)を延出し、その先端を下ケース(12)の上部内面に当接させることで、背面から吐出された冷気のケース(12)外への流出を遮蔽し、扉内板(9a)部分や仕切壁(6)部分の扉ガスケット(24)部へ冷気が至ることを防いでいる。
【0021】
そして、下ケース(12)の背面には流出口(25)を設けることで、下ケース内を循環した冷気をケース外に流出させ、背面の前記冷気吹出口(19)の周囲に配設したリターンダクト(26)を経て冷却器(13)に戻すように構成している。
【0022】
また、前記上ケース(11)と下ケース(12)との間隙(21)に代えて、図3に示すように、下ケース(12)上に上ケース(11)を重合し、仕切壁(6)からのシール片(23)を上ケース(11)の上端に当接してケース前方のガスケット(24)部へのへの冷気の吹き出しを遮断するとともに、上ケース(11)の前方底面に冷気流通口(22´)を設けるようにしてもよく、この構成によっても、上記と同様に冷気の効率的循環を得ることができる。
【0023】
なお、前記流出口(25)は必ずしも必須構成ではなく、後方における下ケース(12)と上ケース(11)との間隙から循環冷気を流出させるようにしてもよく、また、蓋体(20)の前方下面に風向ガイド片(20a)を突設することで、上ケース(11)と下ケース(12)に対する冷気配分を適正なものとすることができる。
【0024】
上記のように構成することで、従来のように、吹出口からの冷気が貯蔵ケース(11)(12)の周囲、すなわち、扉内板(9a)や外面に凝縮器を配している底壁、さらには機械室に配した圧縮機の熱影響を受ける下部背壁など、高温の外気の影響を受けて温度上昇する冷凍室(7)の内周壁を循環することで冷気自体が温度上昇し、その結果として、収納食品に用いるべき冷却力を低下させてしまう欠点をなくすとともに、ケース周囲の循環による圧力損失の低下を少なくして冷気を流れ易くでき、また、冷気吹出口(19)から吹き出す冷気を上ケース(11)内から下ケース(12)内に循環させることで、収納食品を流量の多い低温を維持した冷気で直接冷却することができるため、食品に対する冷却力が大きく、効率的に冷凍することができる。
【0025】
なお、前記扉内板(9a)に対する上ケース(11)あるいは下ケース(12)の前壁上端は、図4に示すように、ケース(11)(12)の上部両端から円弧状の突出片(27)とし、その先端を扉内板(9a)面に当接させる構成でもよい。このようにすれば、円弧状の突出片(27)により、扉内板(9a)との熱伝導を最小限に抑えることができる。
【0026】
また、蓋体は、上記実施例のように、仕切壁天井に固定する構成でなく、図5に示すように、貯蔵ケース(11)の開口形状に合わせた周縁に鍔部(20b)を有する蓋B(20´)とし、蓋B(20´)の背面鍔部(20b)に形成した切欠き(20c)から冷気吹出口(19)をケース内に開口させるとともに、貯蔵ケース(11)後端に設けたケース上面から突出するローラー(28)を蓋B(20´)の後端に形成した傾斜面を有する切欠きガイド(20d)と係合させてもよい。
【0027】
上記構成によれば、閉扉時には(a)のように、突出するローラー(28)と切欠きガイド(20d)とが係合するとともに蓋B(20´)の鍔部(20b)周縁が貯蔵ケース(11)の上部周縁を覆うようにすることで、背部の冷気吹出口(19)からの冷気をケース(11)内に導入した際にも、吹出冷気を貯蔵ケース(11)の前端から前部の扉内側部に漏洩させないようにしてケース(11)内の食品に対する冷却力を大きく保つことができる。
【0028】
開扉の際は、(b)のように、扉に保持されて引き出される貯蔵ケース(11)の前方移動に連動してローラー(28)が切欠きガイド(20d)の傾斜部により切欠き部から脱出することで蓋B(20´)を押し上げるように作用し、ローラー(28)によってケースのみが前方移動するため、貯蔵ケース(11)の引き出し動作には支障がない。
【0029】
上記各実施例においては、貯蔵ケースを上下2ケースからなる構成で説明したが、本発明の趣旨はこれに限らず下ケースのみの構成でもよいものであり、また、蓋体(20)についても、仕切壁(6)の断熱厚が厚く、充分に断熱されているものであれば必ずしも必要とするものではなく、シール片(23)を仕切壁(6)の天井部から直接下方へ延出し、貯蔵ケース(11)(12)の前部上端縁に当接させる構成でもよい。
【0030】
なお、上記構成においては、冷凍室における貯蔵ケースを実施例として説明したが、これに限らず、野菜室や他の貯蔵室構成でも適用できるものであることはいうまでもない。
【0031】
【発明の効果】
本発明は上記のように構成されており、冷気吹出口から吹き出す冷気流を直接貯蔵ケース内に流入して食品を冷却し、背面に形成した流出部からリターンダクトへ流出して冷却器に戻る循環をおこなうことで、従来のように、貯蔵ケースの周囲の圧縮機の熱影響を受ける下部背壁など、高温の外気の影響を受けて温度上昇する貯蔵室の内周壁を循環することで冷気が温度上昇し収納食品に用いるべき冷却力を低下させることを防ぐとともに圧力損失の低下を少なくして冷気を流れ易くし、収納食品を流量の多い低温の冷気で直接冷却することができるため、食品に対する冷却力を大きくすることができる。
【図面の簡単な説明】
【図1】本発明の一実施形態を示す冷蔵庫の縦断面図である。
【図2】図1の要部を示す縦断面図である。
【図3】本発明の他の実施例を示す図2と同一部分の縦断面図である。
【図4】本発明の貯蔵ケースの他の実施例を示す斜視図である。
【図5】本発明の他の実施例を示す蓋体構成の側面図である。
【図6】従来例を示す図2と同一部分の縦断面図である。
【符号の説明】
1…冷蔵庫本体 2…冷蔵室 4…野菜室
5…上部室 6…断熱仕切壁 7…冷凍室
9…冷凍室扉 9a…扉内板 11…貯蔵上ケース
12…下ケース 13…冷凍用冷却器 14…ファン
18…吐出ダクト 19…冷気吹出口 20、20´…蓋体
20a…風向ガイド片 20b…鍔部 20c…切欠き
20d…切欠きガイド 21…間隙 22、22´…冷気通過口
23…シール片 24…ガスケット 25…冷気流出口
26…リターンダクト 27…突出片 28…ローラー
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a refrigerator and, more particularly, to an improvement in a configuration of a cool air flow path for improving cooling efficiency in a storage room.
[0002]
[Prior art]
Conventionally, a storage room, for example, a freezing room, which is provided in a lower part of a refrigerator in a drawer system, as shown in FIG. 6, uses a fan (54) to generate cool air generated by a cooler (53) installed at the back of the body. Thus, the air is blown into the room from the air outlet (59) on the back of the freezing room (47) to cool the stored foods.
[0003]
Then, the cool air that has cooled the foods reaches the upper front part of the storage cases (51) and (52) as shown by the arrows, and the inner plate (49a) of the drawer door (49) and the front surface of the storage case (52). Circulating from the return duct (66) to the cooler (53) through the gap of the storage case (52) and the gap between the bottom surface of the storage case (52) and the bottom wall of the storage room.
[0004]
In the above configuration, the front surface (46a) of the partition wall between the freezer compartment (47) and the upper compartment (45) is cooled by cold air that reaches the front upper portion of the storage case (52) after the food is cooled, and is partitioned by the temperature difference between the inside and outside. In order to prevent dew condensation on the front surface of the wall, a dew-proof pipe (50) is provided. The dew-proof pipe (50) uses a high-temperature refrigerant pipe in a refrigeration cycle, and the heat generated by the heat is used as a partition wall. Since the front surface (46a) is heated to a high temperature, condensation is prevented, but on the other hand, the air above the front of the freezing compartment (47) is heated to lower the cooling efficiency.
[0005]
In order to prevent this, a packing (63) indicated by a two-dot chain line is provided in the upper gap portion of the storage case (51) near the partition wall (46) to prevent cold air from leaking to the door gasket (64) side. Has been proposed. (For example, see Patent Document 1)
[0006]
[Patent Document 1]
JP-A-10-96584 (paragraph [0029] and FIGS. 4 and 5)
[0007]
[Problems to be solved by the invention]
However, in the above-described conventional configuration, the cool air that has cooled the food in the storage case (51) is transferred to the storage case (51) from the opening (51a) provided in the upper portion of the storage case (51) or the front wall of the storage case. It flows down the gap (A) with the drawer door inner plate (49a) and returns to the return duct (66) through the bottom wall of the storage case and further through the gap on the back surface facing the high-temperature refrigerant compressor (60). In any case, heat leakage is increased due to the influence of heat in the surrounding high-temperature portion such as a high-temperature storage room or outside air that does not contribute to cooling of the storage case (52).
[0008]
The present invention has been made in consideration of the above circumstances, and provides a refrigerator that improves a cooling air circulation path to a storage case to reduce heat leakage to the outside, improves cooling efficiency, and reduces power consumption. Is what you do.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, a refrigerator of the present invention includes a storage case that is held and fixed to an inner surface of a door that closes a front opening of a storage room and that is drawn out with the door open, and a storage case that is provided at the back of the storage room and stores cold air. A cold air outlet to be introduced into the inside, a sealing piece extending from the upper part of the storage chamber to the front edge of the storage case to block outflow of the cool air discharged from the back to the outside of the case, and a case provided on the back of the storage case. An outlet for returning the cool air circulated therein to the cooler, wherein the cool air from the cool air outlet is returned to the cooler without flowing at least to the front of the storage case.
[0010]
With this configuration, the inside of the storage case can be directly cooled by the cool air from the cool air outlet, and after circulating in the case, it returns to the cooler without passing through the gap around the case, so that heat leaks to the higher temperature part. And efficient cooling can be performed.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1 which is a longitudinal sectional view of the main part of the refrigerator, the refrigerator body (1), which is composed of a heat insulating box and has a plurality of storage spaces formed by partitioning the inside with heat insulating walls, has a frequency of use at the top thereof. The refrigerator compartment (2), which has a large storage capacity and the largest storage volume, is arranged, and the front opening is closed by a door (3) pivotally supported on one side of the main body.
[0012]
A vegetable compartment (4) for storing vegetables kept at a temperature slightly higher than the refrigerated room temperature via a partition plate is provided below the refrigerator compartment (2), and an ice making machine is provided below the vegetable compartment (4). A freezing room (7) is arranged independently of an upper room (5) set as a room or a temperature switching room and a lower part thereof via a heat insulating partition wall (6).
[0013]
These vegetable compartments (4) and freezer compartments (7) have their front openings closed by doors (8) and (9), and a frame (not shown) extending in the direction of the storage compartment is installed inside the door. The storage cases (10) and (11) are placed on the upper surface of the body, and the storage cases (10) and (11) are slid by engagement of a roller (not shown) attached to the rear end of the frame with a rail member provided on the inner wall of the storage. 10) and (11) are provided so that they can be pulled out in the front-rear direction by opening and closing the doors (8) and (9).
[0014]
At the back of the freezing room (7), a freezing cooler (13) for supplying cold air to the freezing space such as the ice making room or the freezing room and cooling to a freezing temperature is installed. A fan (14) for circulating cool air is arranged at the upper part of.
[0015]
In addition, a refrigerator (15) and a fan (16) for refrigeration are installed on the back of the vegetable room (4) also in the refrigerated space such as the refrigerator room (2) and the vegetable room (4).
[0016]
As shown in detail in FIG. 2, the front surfaces of the freezing cooler (13) and the fan (14) are covered with a cooling room cover (17) forming a rear wall of the freezing room (7). A discharge duct (18) is formed between the cooler cover (17), the cooler (13), and the fan (14), and cool air from the discharge duct (18) is supplied to the upper chamber (5) and the lower freezer. It is guided to a cool air outlet (19) provided at a position facing the back of the room (7), and is discharged into each room.
[0017]
The storage case in the freezer compartment (7) is installed in two stages, an upper case (11) and a lower case (12), and the bottom is relatively shallow in the upper surface opening of the lower case (12). The formed upper case (11) is arranged by using a peripheral flange or the like.
[0018]
A lid (20) is fixed to the ceiling of the freezer compartment (7) at the upper part of the upper and lower cases (11) and (12) so as to cover the upper opening of the case. An opening is provided between the body (20) and the upper rear part of the upper case (11) so that cool air from the cooler is directly blown into the upper case (11).
[0019]
A gap (21) is formed between the front wall of the upper case (11) and the front wall of the lower case (12), and the upper front end of the upper case (11) is bent forward to lower the lower case (12). In addition, a cold air passage opening (22) is opened in the bent portion so that cool air flows into the lower case (12) as shown by the arrow.
[0020]
A sealing piece (23) extends downward from the front end of the lid (20) over the entire width of the lower case (12), and its tip is connected to the upper inner surface of the lower case (12). , The flow of the cool air discharged from the back surface to the outside of the case (12) is blocked, and the cool air flows to the door gasket (24) of the door inner plate (9a) and the partition wall (6). To prevent them from reaching.
[0021]
By providing an outlet (25) on the back surface of the lower case (12), the cool air circulated in the lower case is allowed to flow out of the case and disposed around the cool air outlet (19) on the back surface. It is configured to return to the cooler (13) via the return duct (26).
[0022]
In place of the gap (21) between the upper case (11) and the lower case (12), the upper case (11) is superimposed on the lower case (12) as shown in FIG. The seal piece (23) from (6) is brought into contact with the upper end of the upper case (11) to block the blowing of cool air to the gasket (24) in front of the case, and to attach the seal piece (23) to the front bottom surface of the upper case (11). A cool air circulation port (22 ') may be provided, and even with this configuration, efficient circulation of cool air can be obtained in the same manner as described above.
[0023]
Note that the outlet (25) is not necessarily an essential component, and circulating cool air may be allowed to flow out from a gap between the lower case (12) and the upper case (11) at the rear, and the lid (20) By projecting the wind direction guide pieces (20a) on the front lower surface of the upper case, the distribution of cool air to the upper case (11) and the lower case (12) can be made appropriate.
[0024]
With the above-described configuration, as in the related art, the cool air from the air outlet is provided around the storage cases (11) and (12), that is, the bottom where the condenser is arranged on the door inner plate (9a) and the outer surface. The temperature of the cold air itself rises by circulating through the inner peripheral wall of the freezing room (7), which rises in temperature under the influence of high-temperature outside air, such as walls and the lower back wall that is affected by the heat of the compressor arranged in the machine room. As a result, it is possible to eliminate the drawback of lowering the cooling power to be used for the stored food, to reduce the decrease in pressure loss due to the circulation around the case, to facilitate the flow of cool air, and to provide a cool air outlet (19). By circulating the cool air blown out from the upper case (11) into the lower case (12), the stored food can be directly cooled by the cool air maintaining a low flow rate with a large flow rate, so that the cooling power for the food is large. Freeze efficiently It is possible.
[0025]
The upper end of the front wall of the upper case (11) or the lower case (12) with respect to the door inner plate (9a) has an arc-shaped projecting piece from both upper ends of the cases (11) and (12) as shown in FIG. (27), and the tip may be in contact with the door inner plate (9a) surface. With this configuration, the arc-shaped projecting piece (27) can minimize heat conduction with the door inner plate (9a).
[0026]
Further, the lid is not fixed to the partition wall ceiling as in the above embodiment, but has a flange (20b) on the periphery corresponding to the opening shape of the storage case (11) as shown in FIG. A cool air outlet (19) is opened in the case from the notch (20c) formed in the rear flange portion (20b) of the cover B (20 ') as the cover B (20'). The roller (28) protruding from the upper surface of the case provided at the end may be engaged with a notch guide (20d) having an inclined surface formed at the rear end of the lid B (20 ').
[0027]
According to the above configuration, when the door is closed, the protruding roller (28) engages with the notch guide (20d) as shown in (a), and the periphery of the flange (20b) of the lid B (20 ') is the storage case. By covering the upper peripheral edge of (11), even when the cool air from the cool air outlet (19) on the back is introduced into the case (11), the blown cool air is transferred from the front end of the storage case (11) to the front. The cooling power for the food in the case (11) can be kept large by preventing leakage to the inside of the door of the part.
[0028]
When the door is opened, the roller (28) interlocks with the forward movement of the storage case (11) held and pulled out by the door and the notch is formed by the inclined portion of the notch guide (20d) as shown in (b). When the storage case (11) is pulled out from the storage case (11), the cover (20 ') acts to push up the cover (20') and only the case is moved forward by the roller (28).
[0029]
In each of the above embodiments, the storage case has been described as having a configuration consisting of two upper and lower cases. However, the gist of the present invention is not limited to this, and a configuration having only a lower case may be used. It is not always necessary if the heat insulation thickness of the partition wall (6) is thick and sufficiently insulated, and the sealing piece (23) extends directly downward from the ceiling of the partition wall (6). Alternatively, the storage case (11) (12) may be configured to be in contact with the upper edge of the front part.
[0030]
In the above-described configuration, the storage case in the freezing room has been described as an example, but it is needless to say that the present invention is not limited to this and can be applied to a vegetable room or other storage room configurations.
[0031]
【The invention's effect】
The present invention is configured as described above, cools the food by flowing the cool airflow blown out from the cool air outlet directly into the storage case, flows out from the outlet formed on the back surface to the return duct, and returns to the cooler. By circulating, as in the past, cold air is circulated through the inner peripheral wall of the storage room, whose temperature rises under the influence of high-temperature outside air, such as the lower back wall, which is affected by the heat of the compressor around the storage case. Because it prevents the temperature rise and lowers the cooling power to be used for stored foods, reduces the decrease in pressure loss and makes it easier for cold air to flow, it is possible to directly cool stored foods with low flow cold air with a large flow rate, The cooling power for food can be increased.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a refrigerator showing one embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a main part of FIG.
FIG. 3 is a longitudinal sectional view of the same portion as FIG. 2 showing another embodiment of the present invention.
FIG. 4 is a perspective view showing another embodiment of the storage case of the present invention.
FIG. 5 is a side view of a lid structure showing another embodiment of the present invention.
FIG. 6 is a longitudinal sectional view of the same portion as FIG. 2 showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Refrigerator main body 2 ... Refrigerator room 4 ... Vegetable room 5 ... Upper room 6 ... Heat insulation partition wall 7 ... Freezer room 9 ... Freezer room door 9a ... Door inner plate 11 ... Storage upper case 12 ... Lower case 13 ... Freezer cooler 14 ... Fan 18 ... Discharge duct 19 ... Cold air outlet 20, 20 '... Lid 20a ... Wind direction guide piece 20b ... Flange 20c ... Notch 20d ... Notch guide 21 ... Gap 22, 22' ... Cool air passage 23 ... Sealing piece 24 Gasket 25 Cold air outlet 26 Return duct 27 Projecting piece 28 Roller

Claims (4)

貯蔵室の前面開口を閉塞する扉内面に保持固定され開扉にともなって引き出される貯蔵ケースと、前記貯蔵室の背部に設けられ冷気を貯蔵ケース内に導入する冷気吹出口と、前記貯蔵室上部から貯蔵ケースの前端縁に延出し背面から吐出された冷気のケース外への流出を遮蔽するシール片と、前記貯蔵ケースの背面に設けられケース内を循環した冷気を冷却器に戻す流出開口とからなり、前記冷気吹出口からの冷気を少なくとも貯蔵ケースの前方に流出させずに冷却器に戻すようにしたことを特徴とする冷蔵庫。A storage case that is held and fixed to the inner surface of the door that closes the front opening of the storage room and that is drawn out with the opening; a cold air outlet that is provided at the back of the storage room and that introduces cool air into the storage case; A sealing piece that extends to the front edge of the storage case and blocks outflow of cool air discharged from the back to the outside of the case, and an outflow opening provided on the back of the storage case and returning cool air circulated in the case to the cooler; Wherein the cool air from the cool air outlet is returned to the cooler without flowing at least to the front of the storage case. 貯蔵ケースの上部を覆う蓋板を設け、この蓋板の前端に設けたシール片の延出端を貯蔵ケースの上方内面に当接して前方への冷気流出を遮蔽したことを特徴とする請求項1記載の冷蔵庫。A cover plate for covering an upper portion of the storage case is provided, and an extension end of a seal piece provided at a front end of the cover plate abuts on an upper inner surface of the storage case to block outflow of cool air forward. The refrigerator according to 1. 貯蔵ケースの後部上縁に突出部を設けるとともに貯蔵ケースの上部を覆う蓋板の周縁鍔部の後端に切欠きガイドを形成し、この切欠きガイド内への前記突出部の係合で貯蔵ケースの開口上面を蓋板で覆い、貯蔵ケースの前方移動で突出部が切欠きガイドから脱出することにより蓋板を押し上げ、貯蔵ケースの前方移動を可能にしたことを特徴とする請求項2記載の冷蔵庫。A protrusion is provided at the rear upper edge of the storage case, and a notch guide is formed at the rear end of the peripheral flange of the cover plate that covers the upper portion of the storage case. The protrusion is engaged with the notch guide to store the storage case. The upper surface of the opening of the case is covered with a cover plate, and when the storage case is moved forward, the protrusion escapes from the notch guide to push up the cover plate, thereby enabling the storage case to move forward. Refrigerator. 貯蔵ケースを上ケースと下ケースに区分し、上ケース内に吹き出された冷気を上ケースの前部に設けた冷気通過口から下ケース内に導入させたことを特徴とする請求項1乃至3のいずれかに記載の冷蔵庫。The storage case is divided into an upper case and a lower case, and cool air blown into the upper case is introduced into the lower case through a cool air passage provided at a front portion of the upper case. The refrigerator according to any one of the above.
JP2003089227A 2003-03-27 2003-03-27 Refrigerator Pending JP2004293990A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2003089227A JP2004293990A (en) 2003-03-27 2003-03-27 Refrigerator
PCT/JP2004/003370 WO2004085938A1 (en) 2003-03-27 2004-03-12 Refrigerator
KR1020057017563A KR20050113237A (en) 2003-03-27 2004-03-12 Refrigerator
TW093108306A TWI238239B (en) 2003-03-27 2004-03-26 Refrigerator

Applications Claiming Priority (1)

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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012032015A (en) * 2010-07-28 2012-02-16 Toshiba Corp Refrigerator
JP2015169392A (en) * 2014-03-07 2015-09-28 株式会社東芝 refrigerator
JP2016205777A (en) * 2015-04-28 2016-12-08 東芝ライフスタイル株式会社 refrigerator
JP7458803B2 (en) 2020-01-31 2024-04-01 東芝ライフスタイル株式会社 refrigerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012032015A (en) * 2010-07-28 2012-02-16 Toshiba Corp Refrigerator
JP2015169392A (en) * 2014-03-07 2015-09-28 株式会社東芝 refrigerator
JP2016205777A (en) * 2015-04-28 2016-12-08 東芝ライフスタイル株式会社 refrigerator
JP7458803B2 (en) 2020-01-31 2024-04-01 東芝ライフスタイル株式会社 refrigerator

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