JP2005016772A - Refrigerator - Google Patents

Refrigerator Download PDF

Info

Publication number
JP2005016772A
JP2005016772A JP2003179129A JP2003179129A JP2005016772A JP 2005016772 A JP2005016772 A JP 2005016772A JP 2003179129 A JP2003179129 A JP 2003179129A JP 2003179129 A JP2003179129 A JP 2003179129A JP 2005016772 A JP2005016772 A JP 2005016772A
Authority
JP
Japan
Prior art keywords
plate
cooling pipe
container
refrigerator
drawer
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
JP2003179129A
Other languages
Japanese (ja)
Inventor
Keiichi Takase
恵一 高瀬
Kazuya Nakanishi
和也 中西
Hideki Sakai
秀樹 酒井
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2003179129A priority Critical patent/JP2005016772A/en
Publication of JP2005016772A publication Critical patent/JP2005016772A/en
Pending legal-status Critical Current

Links

Images

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
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection

Landscapes

  • 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 of an energy saving type with improved temperature distribution in a freezing chamber in a direct cooling type refrigerator that is cooled by natural convection. <P>SOLUTION: In the freezing chamber 12, at least two vertically disposed drawer type containers, and a chiller 13 for the freezing chambers are provided. The chiller 13 for the freezing chamber comprises a cooling pipe 17 provided in zigzag form, and at least three plates. An upper plate 14 is positioned at an upper surface of an upper drawer type container 4, a middle plate 15 is between the upper drawer type container 4 and a lower drawer type container 5, and a back plate 16 is positioned at a back surface of the lower drawer type container 5. The cooling pipe 17 is tightly disposed on the upper plate, the middle plate, and the back plate. Temperature distribution can be improved in the whole freezing chamber. Power consumption can be reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、自然対流により冷却する直冷式冷蔵庫に関するものである。
【0002】
【従来の技術】
従来より、内箱と断熱材の間に冷却パイプを設けた冷蔵庫が知られている(例えば、特許文献1参照。)。
【0003】
以下、図面を参照しながら従来の冷蔵庫について説明する。
【0004】
図8は、従来の冷蔵庫の縦断側面図、図9は、従来の冷蔵庫の内箱背面斜視図である。
【0005】
1は冷蔵庫本体で上室が冷蔵室2、下室が冷凍室3である。冷凍室3には引き出し式容器4、5が上下に備えられている。冷却器6は、蛇行形状を有する冷蔵室冷却パイプ7と同じく蛇行形状を有する冷凍室冷却パイプ8から成り、冷蔵室冷却パイプ7及び冷凍室冷却パイプ8は内箱9の断熱材10側に取付けられている。冷蔵庫内2、冷凍室3は、それぞれ、内箱9に取付けられている冷蔵室冷却パイプ7、冷凍室冷却パイプ8の熱伝導を利用して冷やされる。この冷却方式は極めて単純であり、また安価でもあるため、小型機種に一般的に用いられている。また、断熱材当接側に冷却パイプが取付けられているため、食品による冷却器の傷付もない。
【0006】
【特許文献1】
特開平7−120108号公報
【0007】
【発明が解決しようとする課題】
しかしながら、上記従来例に記載されている冷蔵庫は、特に冷却量を必要とする冷凍室において、内箱を介して庫内を冷却する為、食品が多量に収納された場合は、庫内中央程、食品温度が高くなり温度分布が悪くなり、庫内中央の食品温度を所定の温度に維持する為には冷凍室の設定温度を下げる必要があり、電気代がかかるという問題があった。
【0008】
本発明は、上記課題に鑑み、冷凍室の温度分布を改善した、省エネタイプの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】
上記目的を達成するために本発明の請求項1に記載の発明は、冷凍室内に、少なくとも二つ以上の上下に配置された引き出し式容器と、冷凍室用冷却器とを備えた冷蔵庫において、前記冷凍室用冷却器は往復蛇行した冷却パイプと少なくとも三つ以上のプレートから成り、上部プレートは最上部の引き出し式容器の上面に、中間プレートは上部の引き出し式容器と下部の引き出し容器との間に、背面プレートは最下部の引き出し式容器の背面に位置し、前記冷却パイプが前記上部プレート、中間プレート、背面プレートに密着配置したものであり、前記冷凍室内を直冷式の自然対流により冷却するものである。
【0010】
本発明によれば、冷却パイプにより冷却されるプレートがすくなくとも引き出し容器の上面に位置し、さらに、最下部の引き出し式容器の背面に位置しているので、各引き出し式容器の上面から効率的に冷却できるとともに、圧縮機を収納する機械室からの熱影響を受けやすい最下部の引き出し式容器の背面の冷却能力が高まり、冷凍室庫内全体の温度分布を改善することができる。
【0011】
請求項2に記載の発明は、請求項1記載の発明において、引き出し式容器の上部に位置するプレートに密着配置する冷却パイプは前記プレートの下面に配設し、最下部の引き出し式容器の背面に位置するプレートに密着配置する冷却パイプはプレートの奥面に配設するものである。
【0012】
本発明によれば、食品が引き出し容器から落下し、プレートと引き出し容器の間に食品がはさまれてもプレートの下面又は裏面に冷却パイプが位置しているので、直接冷却パイプに接することがなく、冷却パイプへの傷付きを防止できる。
【0013】
請求項3に記載の発明は、請求項1または2に記載の発明において、最下部の引き出し式容器の背面に位置するプレートは、引き出し式容器の背面傾斜形状と平行に配置するものである。
【0014】
本発明によれば、最下部の引き出し式容器の冷却効率を高めた上で、容器の奥行きを広くとることができ、食品収納効率を高めることができる。また、引き出し式容器の背面傾斜形状と平行に配置することで容器内背面への冷却能力の均一化を図ることができる。
【0015】
請求項4に記載の発明は、請求項1から請求項3のいずれか一項に記載の発明において、前記三つ以上のプレートのうち、少なくとも二つのプレートを一体に成形したものである。
【0016】
本発明によれば、上部、中間、背面プレートいずれか二枚が一体に成形されているため、プレートの表面積を拡大でき、冷却能力がさらに高まる。また、一体に成形することでコスト低減が図れる。
【0017】
請求項5に記載の発明は、請求項1から請求項4のいずれか一項に記載の発明において、前記上部プレート、中間プレート、背面プレートに密着配置する冷却パイプを扁平形状としたものである。
【0018】
本発明によれば、プレートに密着する冷却パイプが扁平しているため、熱交換面積が拡大し、冷却能力がさらに増大する。また、冷却パイプを扁平することにより、冷凍室用冷却器の厚み寸法を小さくでき、冷凍室用冷却器の設置時の省スペース化を図り、庫内有効内容積を高めることができる。
【0019】
また、断面円形に対して扁平させることで断面積が小さくなり、同一冷却パイプ長さで比べれば管内ボリュームを小さくでき、冷媒に可燃性自然冷媒を用いた場合、冷媒封入量を減らすことができ安全性が高まる。
【0020】
【発明の実施の形態】
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、従来と同一構成については、同一符号を付して詳細な説明を省略する。
【0021】
(実施の形態1)
図1は本発明の実施の形態1による冷蔵庫の縦断面図、図2は冷凍室用冷却器の斜視図を示す。
【0022】
図1、図2において、冷蔵庫本体11は仕切り壁により上下に区画され、上部に冷蔵室2を下部に冷凍室12を有している。また、冷蔵庫本体11の背面下部には図示しない圧縮機等を収納する機械室を有している。
【0023】
冷凍室12には、冷凍室用冷却器13が備えられ、冷凍室用冷却器13は、上部プレート14、中間プレート15、背面プレート16と往復蛇行する冷却パイプ17から構成されている。上部プレート14は引き出し容器4の上面に、中間プレート15は引き出し容器4と引き出し容器5の間に、背面プレート16は引き出し容器5の背面に位置し、それぞれのプレート14、15、16には冷却パイプ17が密着配置されている。冷却パイプ17は上部プレート14の下面と中間プレート15の下面と背面プレート16の裏面に位置している。
【0024】
冷却パイプ17の固定方法としては、各プレートに切り欠きを設け、切り起こし部分で冷却パイプ17をカシメている。
【0025】
また、最下部の引き出し式容器5の背面に位置する背面プレート16は、引き出し式容器5の背面傾斜形状と平行に配置している。
【0026】
なお、最下部の引き出し式容器5の背面形状は、冷蔵庫本体11の背面下部に設けた機械室による庫内への突出形状(例えば傾斜部)に合わせるようにしてもよく、背面プレート16を前記突出形状に合わせて、引き出し式容器5の背面に配置してもよい。
【0027】
上記構成により、上部プレート14、中間プレート15、背面プレート16と往復蛇行する冷却パイプ17からなる冷凍室用冷却器13の自然対流による冷却作用により冷凍室12は冷却される。
【0028】
そして、冷却パイプ17により冷却された各プレートが各引き出し容器の上面、各引き出し容器間、最下部の引き出し容器背面に位置しているので、食品が多量に収納された場合でも庫内温度分布はバラツキが少なくなる。特に、圧縮機を収納する機械室からの熱影響を受けやすい最下部の引き出し式容器の背面の冷却能力が高まり、冷凍室庫内全体の温度分布を改善することができる。したがって、従来のように庫内の部分的な冷却能力不足を補うため、庫内全体の設定温度を下げて対応する必要がなくなり、消費電力量の低減を図ることができる。
【0029】
また、各引き出し式容器の上部に位置するプレートに密着配置する冷却パイプ17は前記各プレートの下面に配設し、最下部の引き出し式容器5の背面に位置する背面プレート16に密着配置する冷却パイプ17はプレートの奥面に配設しているので、食品が引き出し容器から落下し、プレートと引き出しの容器の間に食品がはさまれてもプレートの下面又は裏面に冷却パイプが位置しているので、直接冷却パイプに接することがなく、冷却パイプへの傷付きを防止できる。特に、冷媒に可燃性自然冷媒を用いた場合の、冷媒漏れに対する安全性が向上する。
【0030】
また、最下部の引き出し式容器5の背面に位置する背面プレート16は、引き出し式容器5の背面傾斜形状と平行に配置しているので、最下部の引き出し式容器の奥行きを広くとることができ、食品収納効率を高めることができる。また、引き出し式容器の背面傾斜形状と平行に配置することで容器内背面への冷却能力の均一化を図ることができる。
【0031】
(実施の形態2)
図3は、本発明の実施の形態2による冷蔵庫の概略縦断面図、図4は同実施の形態の冷蔵庫の冷凍室用冷却器の斜視図を示す。
【0032】
なお、実施の形態1と同一構成については同一符号を付してその説明を省略し、異なる点についてのみ説明する。
【0033】
図3、図4において、18は冷蔵庫本体であり、冷凍室12には、冷凍室用冷却器19が備えられ、冷凍室用冷却器19は、上部プレート14、中間プレート20、背面プレート21と往復蛇行する冷却パイプ17から構成されている。上部プレート14は引き出し容器4の上面に、中間プレート20は引き出し容器4と引き出し容器5の間に、背面プレート21は引き出し容器5の背面に位置し、それぞれのプレート14、20、21には冷却パイプ17が密着配置されている。冷却パイプ17は上部プレート14の下面と中間プレート20の下面と背面プレート21の裏面に位置していて、中間プレート20と背面プレート21は一体に成形されたものを折り曲げて構成している。
【0034】
上記構成により、冷却パイプ17により冷却されたプレートが引き出し容器の上面、引き出し容器間、引き出し容器背面に位置しているので、食品が多量に収納された場合でも温度分布は良くなる。そして、第二と背面プレートが一体に成形することによりプレート表面積が拡大し冷却能力は増大する。また、一体に成形することでコスト低減が図れる。
【0035】
(実施の形態3)
図5は、本発明の実施の形態3による冷蔵庫の概略縦断面図、図6は同実施の形態の冷蔵庫の冷凍室用冷却器の斜視図、図7は、図6のAA断面図である。
【0036】
なお、実施の形態1と同一構成については同一符号を付してその説明を省略し、異なる点についてのみ説明する。
【0037】
図5、図6、図7において、22は冷蔵庫本体であり、冷凍室12には、冷凍室用冷却器23が備えられ、冷凍室用冷却器23は、上部プレート14、中間プレート15、背面プレート16と往復蛇行する冷却パイプ24から構成されている。上部プレート14は引き出し容器4の上面に、中間プレート15は引き出し容器4と引き出し容器5の間に、背面プレート16は引き出し容器5の背面に位置し、それぞれのプレート14、15、16には冷却パイプ24が密着配置されている。そして、冷却パイプ24は、上部プレート14と中間プレート15の下面と背面プレート16の裏面に位置していて、背面プレート16の裏面に位置する冷却パイプ24の断面形状は扁平している。
【0038】
上記構成により、冷却パイプにより冷却されたプレートが引き出し容器の上面、引き出し容器間、引き出し容器背面に位置しているので、食品が多量に収納された場合でも温度分布は良くなる。そして、冷却パイプ24の扁平形状により、背面プレートと冷却パイプの熱交換面積が拡大し、冷却能力は増大する。
【0039】
また、冷却パイプを扁平することにより、冷凍室用冷却器の厚み寸法を小さくでき、冷凍室用冷却器の設置時の省スペース化を図り、庫内有効内容積を高めることができる。
【0040】
また、断面円形に対して扁平させることで断面積が小さくなり、同一冷却パイプ長さで比べれば管内ボリュームを小さくでき、冷媒に可燃性自然冷媒を用いた場合、冷媒封入量を減らすことができ安全性が高まる。
【0041】
【発明の効果】
以上説明したように本発明の請求項1に記載の発明は、冷凍室内に、少なくとも二つ以上の上下に配置された引き出し式容器と、冷凍室用冷却器とを備えた冷蔵庫において、前記冷凍室用冷却器は往復蛇行した冷却パイプと少なくとも三つ以上のプレートから成り、上部プレートは最上部の引き出し式容器の上面に、中間プレートは上部の引き出し式容器と下部の引き出し容器との間に、背面プレートは最下部の引き出し式容器の背面に位置し、前記冷却パイプが前記上部プレート、中間プレート、背面プレートに密着配置したものであり、前記冷凍室内を直冷式の自然対流により冷却するものであり、各引き出し式容器の上面から効率的に冷却できるとともに、圧縮機を収納する機械室からの熱影響を受けやすい最下部の引き出し式容器の背面の冷却能力が高まり、冷凍室庫内全体の温度分布を改善することができる。したがって、従来のように庫内の部分的な冷却能力不足を補うため、庫内全体の設定温度を下げて対応する必要がなくなり、消費電力量の低減を図ることができる。
【0042】
請求項2に記載の発明は、請求項1記載の発明において、引き出し式容器の上部に位置するプレートに密着配置する冷却パイプは前記プレートの下面に配設し、最下部の引き出し式容器の背面に位置するプレートに密着配置する冷却パイプはプレートの奥面に配設するものであり、食品が引き出し容器から落下し、プレートと引き出し容器の間に食品がはさまれてもプレートの下面又は裏面に冷却パイプが位置しているので、直接冷却パイプに接することがなく、冷却パイプへの傷付きを防止できる。
【0043】
請求項3に記載の発明は、請求項1または2に記載の発明において、最下部の引き出し式容器の背面に位置するプレートは、引き出し式容器の背面傾斜形状と平行に配置するものであり、最下部の引き出し式容器の冷却効率を高めた上で、容器の奥行きを広くとることができ、食品収納効率を高めることができる。また、容器内背面への冷却能力の均一化を図ることができる。
【0044】
請求項4に記載の発明は、請求項1から請求項3のいずれか一項に記載の発明において、前記三つ以上のプレートのうち、少なくとも二つのプレートを一体に成形したものであり、プレートの表面積を拡大でき、冷却能力がさらに高まる。また、一体に成形することでコスト低減が図れる。
【0045】
請求項5に記載の発明は、請求項1から請求項4のいずれか一項に記載の発明において、前記上部プレート、中間プレート、背面プレートに密着配置する冷却パイプを扁平形状としたものであり、熱交換面積が拡大し、冷却能力がさらに増大する。また、冷凍室用冷却器の厚み寸法を小さくでき、冷凍室用冷却器の設置時の省スペース化を図り、庫内有効内容積を高めることができる。
【0046】
また、断面円形に対して扁平させることで断面積が小さくなり、冷媒に可燃性自然冷媒を用いた場合、冷媒封入量を減らすことができ安全性が高まる。
【図面の簡単な説明】
【図1】本発明の実施の形態1における冷蔵庫の縦断面図
【図2】同実施の形態の冷凍室冷却器の斜視図
【図3】本発明の実施の形態2における冷蔵庫の縦断面図
【図4】同実施の形態の冷凍室冷却器の斜視図
【図5】本発明の実施の形態2における冷蔵庫の縦断面図
【図6】同実施の形態の冷凍室冷却器の斜視図
【図7】同実施の形態の冷凍室冷却器の断面図
【図8】従来の冷蔵庫の縦断面図
【図9】従来の冷蔵庫の内箱背面斜視図
【符号の説明】
4、5 引き出し容器
11 冷蔵庫本体
12 冷凍室
13、19、23 冷凍室用冷却器
14 上部プレート
15、20 中間プレート
16、21 背面プレート
17、24 冷却パイプ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a direct cooling refrigerator that is cooled by natural convection.
[0002]
[Prior art]
Conventionally, a refrigerator in which a cooling pipe is provided between an inner box and a heat insulating material is known (for example, see Patent Document 1).
[0003]
Hereinafter, a conventional refrigerator will be described with reference to the drawings.
[0004]
FIG. 8 is a longitudinal side view of a conventional refrigerator, and FIG. 9 is a rear perspective view of the inner box of the conventional refrigerator.
[0005]
1 is a refrigerator main body, the upper chamber is the refrigerator compartment 2, and the lower chamber is the freezer compartment 3. The freezer compartment 3 is provided with pull-out containers 4 and 5 at the top and bottom. The cooler 6 is composed of a freezer compartment cooling pipe 8 having a meandering shape, similar to a refrigerator compartment cooling pipe 7 having a meandering shape. The refrigerator compartment cooling pipe 7 and the freezer compartment cooling pipe 8 are attached to the heat insulating material 10 side of the inner box 9. It has been. The refrigerator 2 and the freezer compartment 3 are cooled using the heat conduction of the refrigerator compartment cooling pipe 7 and the freezer compartment cooling pipe 8 attached to the inner box 9, respectively. Since this cooling method is very simple and inexpensive, it is generally used for small models. In addition, since the cooling pipe is attached to the heat insulating material contact side, the food cooler is not damaged.
[0006]
[Patent Document 1]
JP-A-7-120108 [0007]
[Problems to be solved by the invention]
However, the refrigerator described in the above-mentioned conventional example cools the interior of the refrigerator via the inner box, particularly in a freezer that requires a cooling amount. The food temperature is increased, the temperature distribution is deteriorated, and in order to maintain the food temperature in the center of the refrigerator at a predetermined temperature, it is necessary to lower the set temperature of the freezer, and there is a problem that an electricity bill is required.
[0008]
In view of the above problems, the present invention provides an energy-saving refrigerator that has improved temperature distribution in a freezer compartment.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 of the present invention is a refrigerator comprising at least two pull-out containers arranged above and below in a freezer compartment, and a freezer cooler. The freezer cooler is composed of a reciprocating meandering cooling pipe and at least three or more plates, the upper plate is on the upper surface of the uppermost drawer container, and the intermediate plate is an upper drawer container and a lower drawer container. In the middle, the back plate is located on the back of the lowermost drawer-type container, and the cooling pipe is arranged in close contact with the upper plate, the intermediate plate, and the back plate, and the freezing chamber is directly cooled by natural convection. It is to be cooled.
[0010]
According to the present invention, at least the plate cooled by the cooling pipe is located on the upper surface of the drawer container, and further, located on the back surface of the lowermost drawer container. In addition to cooling, the cooling capacity of the rear surface of the lowermost drawer-type container that is easily affected by heat from the machine room in which the compressor is housed can be increased, and the temperature distribution in the entire freezer compartment can be improved.
[0011]
According to a second aspect of the present invention, in the first aspect of the present invention, the cooling pipe arranged in close contact with the plate located at the upper portion of the pullout container is disposed on the lower surface of the plate, and the rear surface of the lowermost pullout container. The cooling pipe arranged in close contact with the plate located at is disposed on the inner surface of the plate.
[0012]
According to the present invention, even if the food falls from the drawer container and the food is sandwiched between the plate and the drawer container, the cooling pipe is located on the lower surface or the back surface of the plate, so that it can directly contact the cooling pipe. No damage to the cooling pipe can be prevented.
[0013]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the plate located on the back surface of the lowermost drawer-type container is arranged in parallel with the back inclined shape of the pull-out type container.
[0014]
According to the present invention, the cooling efficiency of the lowermost drawer-type container can be increased, and the depth of the container can be increased, and the food storage efficiency can be increased. In addition, the cooling capacity to the back surface inside the container can be made uniform by disposing it in parallel with the inclined shape of the back surface of the drawer-type container.
[0015]
The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein at least two of the three or more plates are integrally formed.
[0016]
According to the present invention, since any two of the upper, middle and back plates are integrally formed, the surface area of the plate can be increased, and the cooling capacity is further enhanced. Moreover, cost reduction can be achieved by integrally molding.
[0017]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the cooling pipe arranged in close contact with the upper plate, the intermediate plate, and the back plate has a flat shape. .
[0018]
According to the present invention, since the cooling pipe that is in close contact with the plate is flat, the heat exchange area is increased, and the cooling capacity is further increased. Further, by flattening the cooling pipe, the thickness dimension of the freezer cooler can be reduced, space saving can be achieved when the freezer cooler is installed, and the effective internal volume of the refrigerator can be increased.
[0019]
In addition, the cross-sectional area is reduced by flattening the circular cross section, the volume in the pipe can be reduced compared with the same cooling pipe length, and when the flammable natural refrigerant is used as the refrigerant, the amount of refrigerant enclosed can be reduced. Increased safety.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, about the same structure as the past, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
[0021]
(Embodiment 1)
1 is a longitudinal sectional view of a refrigerator according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view of a freezer cooler.
[0022]
1 and 2, the refrigerator main body 11 is partitioned vertically by a partition wall, and has a refrigerator compartment 2 in the upper part and a freezer compartment 12 in the lower part. Further, the lower part of the back surface of the refrigerator main body 11 has a machine room for storing a compressor or the like (not shown).
[0023]
The freezer compartment 12 includes a freezer compartment cooler 13, and the freezer compartment cooler 13 includes an upper plate 14, an intermediate plate 15, and a back plate 16 and a cooling pipe 17 that reciprocates. The upper plate 14 is located on the upper surface of the drawer container 4, the intermediate plate 15 is located between the drawer container 4 and the drawer container 5, and the back plate 16 is located on the back surface of the drawer container 5. The pipe 17 is closely arranged. The cooling pipe 17 is located on the lower surface of the upper plate 14, the lower surface of the intermediate plate 15, and the back surface of the back plate 16.
[0024]
As a method for fixing the cooling pipe 17, a notch is provided in each plate, and the cooling pipe 17 is caulked at the cut and raised portion.
[0025]
Further, the back plate 16 located on the back surface of the lowermost drawer-type container 5 is arranged in parallel with the back-side inclined shape of the drawer-type container 5.
[0026]
In addition, the back surface shape of the lowermost drawer-type container 5 may be made to match the protruding shape (for example, an inclined portion) into the cabinet by the machine room provided at the lower back surface of the refrigerator body 11, and the back plate 16 You may arrange | position on the back surface of the drawer-type container 5 according to protrusion shape.
[0027]
With the above configuration, the freezer compartment 12 is cooled by the natural convection cooling action of the freezer compartment cooler 13 including the cooling pipe 17 that reciprocates with the upper plate 14, the intermediate plate 15, and the back plate 16.
[0028]
And since each plate cooled by the cooling pipe 17 is located in the upper surface of each drawer container, between each drawer container, and the back of the lowest drawer container, even when food is stored in large quantities, Variations are reduced. In particular, the cooling capacity of the rear surface of the lowermost drawer-type container that is easily affected by heat from the machine room that houses the compressor is increased, and the temperature distribution in the entire freezer compartment can be improved. Therefore, in order to compensate for the partial lack of cooling capacity in the storage as in the conventional case, it is not necessary to reduce the set temperature of the entire storage to cope with it, and the power consumption can be reduced.
[0029]
Further, the cooling pipe 17 arranged in close contact with the plate located at the top of each pullout container is disposed on the lower surface of each plate, and is arranged in close contact with the back plate 16 located on the back surface of the lowermost drawout container 5. Since the pipe 17 is disposed on the back surface of the plate, even if the food falls from the drawer container and the food is sandwiched between the plate and the drawer container, the cooling pipe is located on the lower surface or the back surface of the plate. Therefore, the cooling pipe can be prevented from being damaged without directly contacting the cooling pipe. In particular, safety against refrigerant leakage is improved when a flammable natural refrigerant is used as the refrigerant.
[0030]
Further, the back plate 16 located on the back surface of the lowermost pullout container 5 is arranged in parallel with the inclined rear surface of the pullout container 5, so that the depth of the lowermost pullout container 5 can be increased. , Food storage efficiency can be increased. In addition, the cooling capacity to the back surface inside the container can be made uniform by disposing it in parallel with the inclined shape of the back surface of the drawer-type container.
[0031]
(Embodiment 2)
FIG. 3 is a schematic longitudinal sectional view of a refrigerator according to Embodiment 2 of the present invention, and FIG. 4 is a perspective view of a refrigerator for a freezer compartment of the refrigerator according to the embodiment.
[0032]
Note that the same components as those of the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.
[0033]
3 and 4, reference numeral 18 denotes a refrigerator body, and the freezer compartment 12 includes a freezer cooler 19, which includes an upper plate 14, an intermediate plate 20, a back plate 21, and the like. It is composed of a cooling pipe 17 that reciprocally meanders. The upper plate 14 is positioned on the upper surface of the drawer container 4, the intermediate plate 20 is positioned between the drawer container 4 and the drawer container 5, and the back plate 21 is positioned on the back surface of the drawer container 5. The pipe 17 is closely arranged. The cooling pipe 17 is located on the lower surface of the upper plate 14, the lower surface of the intermediate plate 20, and the back surface of the back plate 21, and the intermediate plate 20 and the back plate 21 are formed by bending one formed integrally.
[0034]
With the above configuration, since the plate cooled by the cooling pipe 17 is located on the upper surface of the drawer container, between the drawer containers, and on the rear face of the drawer container, the temperature distribution is improved even when a large amount of food is stored. Then, when the second plate and the back plate are integrally molded, the plate surface area is increased and the cooling capacity is increased. Moreover, cost reduction can be achieved by integrally molding.
[0035]
(Embodiment 3)
5 is a schematic longitudinal sectional view of a refrigerator according to Embodiment 3 of the present invention, FIG. 6 is a perspective view of a refrigerator for a freezer compartment of the refrigerator according to the embodiment, and FIG. 7 is an AA sectional view of FIG. .
[0036]
Note that the same components as those of the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.
[0037]
5, 6, and 7, reference numeral 22 denotes a refrigerator body, and the freezer compartment 12 is provided with a freezer cooler 23, which includes an upper plate 14, an intermediate plate 15, and a rear surface. The plate 16 and the cooling pipe 24 meandering back and forth meander. The upper plate 14 is located on the upper surface of the drawer container 4, the intermediate plate 15 is located between the drawer container 4 and the drawer container 5, and the back plate 16 is located on the back surface of the drawer container 5. The pipe 24 is closely arranged. The cooling pipe 24 is positioned on the lower surface of the upper plate 14 and the intermediate plate 15 and the back surface of the back plate 16, and the cross-sectional shape of the cooling pipe 24 positioned on the back surface of the back plate 16 is flat.
[0038]
With the above configuration, since the plate cooled by the cooling pipe is located on the upper surface of the drawer container, between the drawer containers, and on the rear face of the drawer container, the temperature distribution is improved even when a large amount of food is stored. The flat shape of the cooling pipe 24 increases the heat exchange area between the back plate and the cooling pipe, thereby increasing the cooling capacity.
[0039]
Further, by flattening the cooling pipe, the thickness dimension of the freezer cooler can be reduced, space saving can be achieved when the freezer cooler is installed, and the effective internal volume of the refrigerator can be increased.
[0040]
In addition, the cross-sectional area is reduced by flattening the circular cross section, the volume in the pipe can be reduced compared with the same cooling pipe length, and when the flammable natural refrigerant is used as the refrigerant, the amount of refrigerant enclosed can be reduced. Increased safety.
[0041]
【The invention's effect】
As described above, the invention according to claim 1 of the present invention is a refrigerator including at least two pull-out containers disposed above and below in a freezing chamber and a freezer cooler. The room cooler consists of a reciprocating meandering cooling pipe and at least three or more plates. The upper plate is on the upper surface of the uppermost drawer container, and the intermediate plate is between the upper and lower drawer containers. The back plate is located at the back of the lowermost drawer-type container, and the cooling pipe is arranged in close contact with the upper plate, the intermediate plate, and the back plate, and cools the freezing chamber by direct cooling natural convection. It is possible to cool efficiently from the upper surface of each pullout container, and the lowermost pullout container is susceptible to heat from the machine room that houses the compressor. It increased cooling capacity of the surface, it is possible to improve the temperature distribution throughout the freezer compartment box. Therefore, in order to compensate for the partial lack of cooling capacity in the storage as in the conventional case, it is not necessary to reduce the set temperature of the entire storage to cope with it, and the power consumption can be reduced.
[0042]
According to a second aspect of the present invention, in the first aspect of the present invention, the cooling pipe arranged in close contact with the plate located at the upper portion of the pullout container is disposed on the lower surface of the plate, and the rear surface of the lowermost pullout container. The cooling pipe that is placed in close contact with the plate located on the plate is placed on the back surface of the plate, and even if food falls from the drawer container and the food is sandwiched between the plate and the drawer container, the bottom or back surface of the plate Since the cooling pipe is located at the center, the cooling pipe is not in direct contact with the cooling pipe, and damage to the cooling pipe can be prevented.
[0043]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the plate located on the back surface of the lowermost drawer-type container is arranged in parallel with the back inclined shape of the drawer-type container, In addition to increasing the cooling efficiency of the lowermost drawer-type container, it is possible to increase the depth of the container and increase the food storage efficiency. Further, it is possible to make the cooling capacity to the back surface inside the container uniform.
[0044]
The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein at least two plates among the three or more plates are integrally formed. The surface area can be increased and the cooling capacity is further increased. Moreover, cost reduction can be achieved by integrally molding.
[0045]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the cooling pipe arranged in close contact with the upper plate, the intermediate plate, and the back plate has a flat shape. The heat exchange area is expanded and the cooling capacity is further increased. In addition, the thickness dimension of the freezer cooler can be reduced, space can be saved when the freezer cooler is installed, and the effective internal volume of the refrigerator can be increased.
[0046]
Further, the cross-sectional area is reduced by flattening with respect to the circular cross section, and when a flammable natural refrigerant is used as the refrigerant, the amount of refrigerant enclosed can be reduced and the safety is improved.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a refrigerator according to a first embodiment of the present invention. FIG. 2 is a perspective view of a freezer cooler according to the first embodiment. FIG. 3 is a longitudinal sectional view of a refrigerator according to a second embodiment of the present invention. FIG. 4 is a perspective view of the freezer cooler according to the embodiment. FIG. 5 is a longitudinal sectional view of the refrigerator according to the second embodiment of the invention. FIG. 6 is a perspective view of the freezer cooler according to the embodiment. 7 is a cross-sectional view of a freezer cooler according to the embodiment. FIG. 8 is a vertical cross-sectional view of a conventional refrigerator. FIG. 9 is a rear perspective view of an inner box of a conventional refrigerator.
4, 5 Drawer container 11 Refrigerator body 12 Freezer compartment 13, 19, 23 Freezer compartment cooler 14 Upper plate 15, 20 Intermediate plate 16, 21 Rear plate 17, 24 Cooling pipe

Claims (5)

冷凍室内に、少なくとも二つ以上の上下に配置された引き出し式容器と、冷凍室用冷却器とを備えた冷蔵庫において、前記冷凍室用冷却器は往復蛇行した冷却パイプと少なくとも三つ以上のプレートから成り、上部プレートは最上部の引き出し式容器の上面に、中間プレートは上部の引き出し式容器と下部の引き出し容器との間に、背面プレートは最下部の引き出し式容器の背面に位置し、前記冷却パイプが前記上部プレート、中間プレート、背面プレートに密着配置したものであり、前記冷凍室内を直冷式の自然対流により冷却することを特徴とする冷蔵庫。In a refrigerator comprising at least two or more drawer-type containers arranged in the freezer compartment and a freezer cooler, the freezer cooler includes a reciprocating meandering cooling pipe and at least three or more plates. The upper plate is located on the upper surface of the uppermost drawer container, the intermediate plate is located between the upper and lower drawer containers, and the back plate is located on the rear surface of the lowermost drawer container. A refrigerator characterized in that a cooling pipe is disposed in close contact with the upper plate, the intermediate plate, and the rear plate, and the freezing chamber is cooled by direct cooling natural convection. 引き出し式容器の上部に位置するプレートに密着配置する冷却パイプは前記プレートの下面に配設し、最下部の引き出し式容器の背面に位置するプレートに密着配置する冷却パイプはプレートの奥面に配設することを特徴とする請求項1に記載の冷蔵庫。The cooling pipe that is placed in close contact with the plate located at the top of the pull-out container is placed on the lower surface of the plate, and the cooling pipe that is placed in close contact with the plate located at the back of the lowermost draw-out container is placed on the back of the plate. The refrigerator according to claim 1, wherein the refrigerator is provided. 最下部の引き出し式容器の背面に位置するプレートは、引き出し式容器の背面傾斜形状と平行に配置することを特徴とする請求項1または2に記載の冷蔵庫。3. The refrigerator according to claim 1, wherein the plate located on the back surface of the lowermost drawer-type container is arranged in parallel with the back-side inclined shape of the drawer-type container. 前記三つ以上のプレートのうち、少なくとも二つのプレートを一体に成形したことを特徴とする請求項1から請求項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 at least two of the three or more plates are integrally formed. 前記上部プレート、中間プレート、背面プレートに密着配置する冷却パイプを扁平形状とすることを特徴とする請求項1から請求項4のいずれか一項に記載の冷蔵庫。The refrigerator according to any one of claims 1 to 4, wherein the cooling pipe disposed in close contact with the upper plate, the intermediate plate, and the back plate is formed in a flat shape.
JP2003179129A 2003-06-24 2003-06-24 Refrigerator Pending JP2005016772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003179129A JP2005016772A (en) 2003-06-24 2003-06-24 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003179129A JP2005016772A (en) 2003-06-24 2003-06-24 Refrigerator

Publications (1)

Publication Number Publication Date
JP2005016772A true JP2005016772A (en) 2005-01-20

Family

ID=34180530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003179129A Pending JP2005016772A (en) 2003-06-24 2003-06-24 Refrigerator

Country Status (1)

Country Link
JP (1) JP2005016772A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013120032A (en) * 2011-12-08 2013-06-17 Panasonic Corp Freezer
JP2015031475A (en) * 2013-08-05 2015-02-16 シャープ株式会社 Cooling storage
JP2019207063A (en) * 2018-05-29 2019-12-05 アイリスオーヤマ株式会社 freezer
JP2020112323A (en) * 2019-01-15 2020-07-27 Phcホールディングス株式会社 Refrigerating apparatus
CN115479427A (en) * 2021-06-16 2022-12-16 青岛海尔电冰箱有限公司 Refrigerator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013120032A (en) * 2011-12-08 2013-06-17 Panasonic Corp Freezer
JP2015031475A (en) * 2013-08-05 2015-02-16 シャープ株式会社 Cooling storage
JP2019207063A (en) * 2018-05-29 2019-12-05 アイリスオーヤマ株式会社 freezer
JP2020112323A (en) * 2019-01-15 2020-07-27 Phcホールディングス株式会社 Refrigerating apparatus
CN115479427A (en) * 2021-06-16 2022-12-16 青岛海尔电冰箱有限公司 Refrigerator

Similar Documents

Publication Publication Date Title
EP3258191B1 (en) Refrigerator
US9052127B2 (en) Refrigerator having auxiliary cooling device
US11002474B2 (en) Refrigerator
US8261572B2 (en) Food heat-exchange device and refrigerator having the same
JP5677737B2 (en) refrigerator
KR20120025072A (en) Refrigerator
JPH0424481A (en) Combined refrigerator
CN209893734U (en) T-shaped refrigerator
CN110375488B (en) Refrigerator with improved air duct structure
JP2005016772A (en) Refrigerator
JP2004293991A (en) Refrigerator
CN110375485B (en) Refrigerator with cooling chamber at bottom of refrigerator body
CN208817808U (en) Refrigerator
JP2017172847A (en) refrigerator
JP5401866B2 (en) refrigerator
JPH09280714A (en) Mechanical type cold accumulation container evaporator
KR100594420B1 (en) Roll bond evaporator for refrigerator
JP2005127600A (en) Refrigerator
CN215724421U (en) High-efficient fridge of separated storage article
JP3749087B2 (en) refrigerator
CN110375484B (en) Refrigerator and assembling method thereof
JP2004301433A (en) Refrigerator
EP3929513B1 (en) Refrigerator with air blower located upstream of lateral side of evaporator
CN110375478B (en) Refrigerator with slide rail reinforced iron obliquely arranged
JP4244862B2 (en) refrigerator