EP0645593B1 - Kühlgerät mit elektronischer Kühlung - Google Patents

Kühlgerät mit elektronischer Kühlung Download PDF

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Publication number
EP0645593B1
EP0645593B1 EP94115141A EP94115141A EP0645593B1 EP 0645593 B1 EP0645593 B1 EP 0645593B1 EP 94115141 A EP94115141 A EP 94115141A EP 94115141 A EP94115141 A EP 94115141A EP 0645593 B1 EP0645593 B1 EP 0645593B1
Authority
EP
European Patent Office
Prior art keywords
housing
heat
heat absorbing
fins
absorbing member
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.)
Expired - Lifetime
Application number
EP94115141A
Other languages
English (en)
French (fr)
Other versions
EP0645593A1 (de
Inventor
Izumi C/O Fuji Electric Co. Ltd. Higashi
Riichi C/O Fuji Electric Co. Ltd. Sawano
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of EP0645593A1 publication Critical patent/EP0645593A1/de
Application granted granted Critical
Publication of EP0645593B1 publication Critical patent/EP0645593B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
    • F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
    • F25B2321/025—Removal of heat
    • F25B2321/0251—Removal of heat by a gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators

Definitions

  • the present invention relates to an electronic cooling type refrigerator directed to a portable cooler or cooling box for cooling the inside of the box by utilizing Peltier effect of an electronic type thermo-module using thermo-electric cooling elements.
  • thermo-module using thermo-electric cooling elements is assembled in a heat insulating housing or box of the refrigerator for cooling the inside of the housing by utilizing Peltier effect of the thermo-module.
  • Figs. 3 and 4 show a structure of a conventional electronic cooling type cooling box, wherein numeral 1 is a heat insulating housing and numeral 2 is a lid thereof.
  • numeral 1 is a heat insulating housing
  • numeral 2 is a lid thereof.
  • an electronic type thermo-module 3 having a plain plate shape and formed of thermo-electric cooling elements is assembled such that a heat absorbing side of the thermo-module 3 is oriented inside the housing 1 and the heat radiating side thereof is oriented outside the housing 1.
  • thermo-module 3 is a plain shape module, which is formed of a plurality of thermo-electric cooling elements assembled in series. Each cooling element is formed such that P type and N type semiconductor elements are connected between two ceramic base boards in the form of a small character pi in a Greek letter.
  • a heat absorbing member 4 with fins is heat-conductively fixed to the heat absorbing side of the thermoelectric module 3, and a heat radiating member 5 with fins is heat-conductively fixed to the heat radiating side thereof.
  • a wind channel 6 is formed outside the housing 1 to surround the fins 5a of the heat radiating member 5, and an outside fan 7 is attached to the wind channel 6 to supply outer air to the fins 5a.
  • Numeral 8 is a direct current electric source, such as a battery, to supply electricity to the thermo-module 3.
  • thermo-electric module Since heat exchange between air inside the housing 1 and the heat absorbing member 4 is made based on a natural air convection, heat exchange efficiency is low. Thus, the cooling efficiency of the thermo-electric module has not been sufficiently obtained.
  • DE-A-36 39 089 discloses an electronic cooling type refrigerator comprising a flat thermoelectric module installed in an insulated housing, a heat absorbing member with fins situated inside the housing and heat-conductively connected to a heat absorbing side of the module, and an inner fan situated inside the housing and forcibly supplying air in the housing towards the fins of the heat absorbing member. If required, a plurality of thermoelectric modules may be used either in series or parallel arrangement.
  • the present invention has been made with reference to the above drawbacks, and is to provide an electronic cooling type refrigerator, wherein the cooling efficiency inside the refrigerator is improved, while providing maximum space for the goods to be cooled, and the refrigerator can be used easily.
  • the electronic cooling type refrigerator of the envention has the following structures :
  • thermo-module is vertically arranged and is installed in a wall of a housing of the refrigerator, and the fins of the heat absorbing member connected to the heat absorbing side of the thermo-module are arranged vertically. Also, a drain receiver is provided at a lower side of the heat absorbing member for receiving dew dropping from the fins arranged in the rows and draining outside the housing.
  • thermoelectric modules heat-conductively laminated and assembled in the heat insulating housing may be provided.
  • air inside the housing is forcibly supplied by the inner fan to the rows of the fins of the heat absorbing member projecting into the housing, so that heat exchange rate between the heat absorbing member and air inside the housing is increased several times when comparing the natural convection system.
  • the inner fan is installed inside the fins of the heat absorbing member arranged in the rows, the limited space inside the housing is effectively utilized.
  • thermoelectric modules are laminated and arranged together as the thermo-module, so that the difference of temperature between the heat absorbing side and the heat radiating side is effectively increased.
  • the cooling ability can be increased.
  • the fins of the heat absorbing member is vertically arranged, and the drain receiver is provided at the lower side of the heat absorbing member for receiving the dew flowing along and dropping from the fins and discharging the dew outside the housing.
  • the drain receiver is provided at the lower side of the heat absorbing member for receiving the dew flowing along and dropping from the fins and discharging the dew outside the housing.
  • thermoelectric module 3 in a plain plate shape, is vertically built or installed in a side wall of a heat insulating housing 1 such that a heat absorbing side is directed inside the housing 1.
  • a heat absorbing member 4 with fins 4a (aluminum extruded product) is heat-conductively fixed to the thermo-module 3 at the inside of the housing 1.
  • An inner fan 9 is built in the fins 4a or the rows ofthe fins 4a of the heat absorbing member 4. Air inside the housing 1 is forcibly supplied to the fins 4a of the heat absorbing member 4 by the inner fan 9.
  • thermo- module 3 a heat radiating side of the thermo- module 3 is connected to a heat pipe 11 through a heat radiating block 10, and the heat pipe 11 extends to an inside of a wind channel 6.
  • Radiating fins 11a of the heat pipe 11 are cooled by an outer fan 7.
  • the fins 4a of the heat absorbing member 4 are arranged vertically, and the lower portions thereof are cut diagonally.
  • a drain receiver 12 is provided below the fins 4a, and a drain pipe 12a extending from the drain receiver 12 penetrates through the housing 1 and is drawn outside the housing.
  • thermoelectric-module 3 when an electricity is supplied to the thermoelectric-module 3 in a predetermined direction from a direct current source 8, heat absorption occurs inside the housing and heat radiation occurs outside the housing to thereby cool the heat absorbing member 4 by Peltier effect known already.
  • the heat generated from the thermo-module 3 is radiated to atmosphere through the heat pipe 11.
  • thermoelectric module 3 in the plain plate shape generally sold in a market has a thickness of about 3.5-5 mm, and the heat absorbing side and the heat radiating side are electrically isolated by a ceramic plate with high heat- conductivity.
  • the difference of the temperature between the heat absorbing side and the heat radiating side is slightly above ten degrees centigrade. Therefore, in a cooler or cooling box used outside a house with high atmospheric temperature in a summer time, sufficient cooling ability may not be obtained if one thermo-module is used, though it depends on the capacity of the cooler.
  • thermo-modules a plurality (two or three) of thermo-modules is heat-conductively laminated together and assembled in the housing 1, so that the temperature difference between the inside and outside of the housing is effectively increased to thereby strengthen the cooling efficiency.
  • the above example refers to a portable cooler or a cooling box, but the present invention may be used as a refrigerator with a small capacity fixed in a guest room of a hotel, or a cooling and heating box for cooling or heating the inside of the box by changing the direction of electricity supplied to the electronic thermo-module.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Claims (3)

  1. Kühlgerät mit elektronischer Kühlung, das eine flache, in einem Isoliergehäuse (1) angebrachte thermoelektrische Einheit enthält, das zur Kühlung des Inneren des Gehäuses unter Verwendung des Peltiereffekts der thermoelektrischen Einheit dient und besteht aus:
    einem wärmeabsorbierenden Element (4) mit Kühlrippen (4a), das im Inneren des Gehäuses liegt und wärmeleitend mit einer wärmeabgebenden Seite der Einheit verbunden ist, und
    einem Innenventilator (9), der im Inneren des Gehäuses liegt und die Luft im Gehäuse zu den in Reihen angeordneten Kühlrippen (4a) des wärmeabsorbierenden Elements treibt,
    dadurch gekennzeichnet, daß der Innenventilator (9) in die in Reihen angeordneten Kühlrippen des wärmeabsorbierenden Elements (4) eingebaut ist.
  2. Kühlgerät mit elektronischer Kühlung nach Anspruch 1, worin die Einheit (3) vertikal angeordnet und in eine Seitenwand des Gehäuses (1) eingebaut ist, und die Kühlrippen des wärmeabsorbierenden Elements (4), die an der wärmeabsorbierenden Seite der thermoelektrischen Einheit (3) befestigt sind, vertikal angorodnet sind, wobei ein Kondensaffänger (12) unter dem wärmeabsorbierenden Element (4) vorhanden ist, der von den Kühlrippen tropfenden Tau auffangen kann und außerhalb des Gehäuses (1) entsorgt.
  3. Kühlgerät mit elektronischer Kühlung nach Anspruch 1 oder 2, worin mehrere Einheiten (3) wärmeleitend zusammengeschichtet und in das Gehäuse eingebaut sind.
EP94115141A 1993-09-28 1994-09-26 Kühlgerät mit elektronischer Kühlung Expired - Lifetime EP0645593B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5240774A JPH0791796A (ja) 1993-09-28 1993-09-28 電子冷凍式冷蔵庫
JP240774/93 1993-09-28

Publications (2)

Publication Number Publication Date
EP0645593A1 EP0645593A1 (de) 1995-03-29
EP0645593B1 true EP0645593B1 (de) 1997-09-10

Family

ID=17064515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115141A Expired - Lifetime EP0645593B1 (de) 1993-09-28 1994-09-26 Kühlgerät mit elektronischer Kühlung

Country Status (3)

Country Link
EP (1) EP0645593B1 (de)
JP (1) JPH0791796A (de)
DE (1) DE69405504T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5737923A (en) * 1995-10-17 1998-04-14 Marlow Industries, Inc. Thermoelectric device with evaporating/condensing heat exchanger
JP3372792B2 (ja) * 1996-11-18 2003-02-04 株式会社エコ・トゥエンティーワン 電子冷蔵庫
JP3423172B2 (ja) * 1996-12-27 2003-07-07 株式会社エコ・トゥエンティーワン 電気冷蔵庫
JP3302626B2 (ja) * 1997-08-11 2002-07-15 象印マホービン株式会社 電子冷蔵庫
DE20007909U1 (de) 2000-05-03 2000-07-20 IPV Inheidener Produktions- und Vertriebsgesellschaft mbH, 35410 Hungen Thermobehälter
ES2244515T3 (es) 2000-05-03 2005-12-16 Ipv Inheidener Produktions- Und Vertriebsgesellschaft Mbh Contenedor termico.
EP2177849A1 (de) * 2008-10-20 2010-04-21 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Behälter zum Aufbewahren von Artikeln bei einer vorher festgelegten Temperatur
CN104329829B (zh) * 2014-03-28 2017-04-26 海尔集团公司 半导体制冷冰箱及其热端换热装置
EP3120719A1 (de) * 2015-07-20 2017-01-25 Imperiali Industries SA Behältersystem mit einer kontrollierten atmosphäre
CN107131677A (zh) * 2017-05-31 2017-09-05 安徽金诚天骏汽车零部件制造有限公司 制冷散热结构
CN209893723U (zh) 2019-02-19 2020-01-03 青岛海尔电冰箱有限公司 冷藏冷冻装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586342A (en) * 1985-02-20 1986-05-06 Nissin Electric Co., Ltd. Dehumidifying and cooling apparatus
JPS62276380A (ja) * 1986-05-23 1987-12-01 日本電気ホームエレクトロニクス株式会社 電子式冷蔵庫
DE3639089A1 (de) * 1986-11-14 1988-05-26 Unitechnica Mobilkaelte Gmbh Thermoelektrische kuehlvorrichtung
US4726193C2 (en) * 1987-02-13 2001-03-27 Marlow Ind Inc Temperature controlled picnic box
SE467070B (sv) * 1990-01-24 1992-05-18 Pavel Cech Anordning vid termoelektrisk kylare/vaermare
DK0566646T3 (da) * 1991-01-15 2000-10-30 Hydrocool Pty Ltd Termoelektrisk system

Also Published As

Publication number Publication date
EP0645593A1 (de) 1995-03-29
DE69405504D1 (de) 1997-10-16
JPH0791796A (ja) 1995-04-04
DE69405504T2 (de) 1998-02-05

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