EP2607821A2 - Appareil ménager de refroidissement avec pompe à chaleur et éléments à effet Peltier - Google Patents

Appareil ménager de refroidissement avec pompe à chaleur et éléments à effet Peltier Download PDF

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Publication number
EP2607821A2
EP2607821A2 EP20120008480 EP12008480A EP2607821A2 EP 2607821 A2 EP2607821 A2 EP 2607821A2 EP 20120008480 EP20120008480 EP 20120008480 EP 12008480 A EP12008480 A EP 12008480A EP 2607821 A2 EP2607821 A2 EP 2607821A2
Authority
EP
European Patent Office
Prior art keywords
chamber
peltier element
interior
cooling device
household
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.)
Withdrawn
Application number
EP20120008480
Other languages
German (de)
English (en)
Other versions
EP2607821A3 (fr
Inventor
Jürg Werner
Stefan Stahl
Andreas Kaiser
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.)
V-Zug AG
Original Assignee
V-Zug AG
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 V-Zug AG filed Critical V-Zug AG
Publication of EP2607821A2 publication Critical patent/EP2607821A2/fr
Publication of EP2607821A3 publication Critical patent/EP2607821A3/fr
Withdrawn legal-status Critical Current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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F25B21/04—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect reversible
    • 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
    • F25B2321/023—Mounting details thereof
    • 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
    • F25B2321/0252—Removal of heat by liquids or two-phase fluids
    • 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
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/025—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures using primary and secondary refrigeration systems
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments

Definitions

  • the invention relates to a household cooling device with a usable space for receiving refrigerated goods and with a heat pump for cooling the working space.
  • the term "household refrigerator” here refers to a household refrigerating appliance, in particular a refrigerator, a freezer or another device for refrigerating foodstuffs, including beverages.
  • Refrigerators, freezers, climate cabinets for beverages typically have a work space for holding the chilled goods and a heat pump for chilling the work space.
  • Heat pumps are not very flexible in use, ie they can not be adapted very well to the respective requirements. If, for example, different parts of the usable space are to be kept at different temperatures, complex mechanical components such as additional valves or additional evaporators are required. If certain temperatures are to be maintained very precisely, a complex control and control of the heat pump is required.
  • the household refrigerator has, in addition to the heat pump, at least one Peltier element for additional cooling of the interior of a chamber.
  • the Peltier element is arranged and configured such that it is able to additionally cool the interior of the chamber.
  • additional cooling is meant that the Peltier element is arranged and controlled in such a way that it is able to produce a lower temperature in the interior of the chamber than without the Peltier element or with the Peltier switched off Element would be the case.
  • a Peltier element can be controlled or controlled much easier than a heat pump, a higher flexibility is achieved than with only the heat pump.
  • the heat pump can take over a major load of cooling, so that a Peltier element only low power is needed.
  • the Peltier element is arranged such that a first side of the Peltier element can be cooled by the heat pump.
  • first side is to be understood as one of the thermally active, ie, coolable or heatable, sides of the Peltier element.
  • the device may have a controller that is configured to control the Peltier element to selectively cool or heat the chamber.
  • the current through the Peltier element can be reversed by the controller.
  • the interior of the chamber and the working space of the cooling device can be cooled directly from the evaporator of the heat pump, and in particular the evaporator is designed so that more heat is dissipated per evaporator surface unit from the interior than from the work space.
  • the chamber is arranged at the bottom of the work space.
  • the Peltier element is arranged on a wall of the chamber, which adjoins the work space and not to the evaporator.
  • the Peltier element may be disposed on an upper wall of the chamber where it is in thermal contact with the work space.
  • a fan may be provided, with which an air flow over one side of the Peltier element can be generated. In this way, the heat transfer between the Peltier element and the interior or chamber can be improved.
  • the household refrigerating appliance can be, in particular, a refrigerator, a freezer or a drinks cooler (including a climatic cabinet for wine), the temperature ranges being adapted accordingly.
  • a Peltier element is not a heat pump in this sense.
  • the refrigerator according to Fig. 1 has an interior 1 for receiving the refrigerated goods.
  • the interior for example shelves or grids 2 are provided to store the refrigerated goods.
  • a door 3 gives the user access to the interior.
  • a heat pump For the cooling of the interior is primarily a heat pump.
  • This comprises in a known manner a compressor 4, with which a fluid through a capacitor 5 outside the device, an expansion valve or a simple capillary (not shown) and an evaporator 6 is performed.
  • the evaporator 6 respectively. the surface thereof, which is in thermal contact with the inner space 1, cooled, while the condenser 5 heat to the Environment gives off.
  • the evaporator is disposed adjacent to an inner wall 8 of the inner space 1, within the insulation.
  • At or in the interior 2 at least one Peltier element 7, 12 is provided.
  • a first Peltier element 7 is arranged on or in the inner wall 8 of the inner space 1, so that a first (facing away from the interior 1) of the two active sides of the Peltier element 7 is thermally coupled to the evaporator 6, while the second side to Interior is oriented towards.
  • the Peltier element 7 protrudes beyond the wall surface into the interior 1.
  • the Peltier element 7 can also be arranged at least partially sunk in the inner wall 8, as in Fig. 2 is illustrated, so that the surface is substantially flat or at least less protruding in the region of the Peltier element. This simplifies the cleaning of the same.
  • a chamber 10 which has an insulation 11 against the work space 1.
  • a Peltier element 12 serves to cool the interior 13 of the chamber 10.
  • the chamber 11 may be completely isolated from the imaginary space 1, or even partially so as to be e.g. to allow at least limited air exchange.
  • the insulation 11 is preferably made of thermal insulating material, but at low temperature differences, walls e.g. made of plastic.
  • the chamber 10 is designed as a removable unit from the work space 1, ie the chamber 10 can be removed as a whole the work space 1. This allows flexible configuration of the device with or without chamber 10.
  • the Peltier element 12 is preferably disposed on or in the chamber 10 and forms a unit therewith.
  • the Peltier element 12 preferably extends through the insulation 11 of the chamber 10, so that the heat can be dissipated from its outer side.
  • the Peltier element 12 is preferably arranged on the chamber 10 such that its outer active side can be brought into thermal contact with a surface cooled by the heat pump, preferably the surface of the inner wall 8 adjacent to the evaporator 6.
  • a power transmission system 14 is provided. This is carried out in two parts, the two parts are suitable to provide the Peltier element 12 with inserted chamber 10 with power.
  • the power transmission system is formed by contacts 15 on the chamber 10 and in the interior 1.
  • the contacts 15 may be configured, for example, as plug contacts or touch contacts. It is also conceivable to use an inductive power transmission system.
  • the chamber 10 can be removed from the interior 1.
  • the chamber 10 may also be arranged fixed in or on the inner space 1.
  • a fan 16 may be provided which generates an air flow over the one side of the Peltier element 7 or 12.
  • this fan 16 is arranged in the interior 1 in order to cover the Peltier element 7 with an air flow.
  • a fan may also be provided on or in the chamber 10 to generate there air flow for the Peltier element 12.
  • the operation of the Peltier element 7 or 12 as well as that of the heat pump 4 - 6 is controlled by a controller 18 of the device. This can be done with temperature sensors be coupled to perform a temperature control in the interior 1 and 13 respectively.
  • the interior 13 of chamber 10 may be e.g. be controlled to a temperature in a range of below 0 ° C to about 4 ° C, e.g. for storing meat in a refrigerator. For storage of vegetables and salad should not fall below the temperature of 0.5 ° C. Since the temperature can be regulated more accurately and faster with a Peltier element than with a heat pump, this temperature can be maintained with high accuracy.
  • a temperature sensor 19 thermally connected to the interior 13 should preferably be provided on or in the chamber 10. The temperature sensor may also be provided in the region of the Peltier element 7.
  • the refrigerator is configured such that the temperature in the chamber 10, i. in the interior 13, by 1 to 10 ° C below the temperature in the working space 1 is located.
  • Chamber 10 may also form a freezer compartment of a refrigerator, or a blast freezer compartment in a freezer. In this case, the temperature ranges are correspondingly lower. It can also be permanently installed in the device.
  • the controller 18 may also be configured such that the Peltier element 7 or 12 either selectively cools or heats the part of the work space assigned to it. This can e.g. in the context of a temperature control to a temperature close to the (fluctuating) temperature in the rest of the interior 1, or for defrosting the Peltier element and its surroundings.
  • FIG. 3 Another version of the refrigerator is in Fig. 3 shown.
  • This embodiment differs from that according to Fig. 1 in that the Peltier element 12 is not arranged on the back of the chamber 10, but advantageously on an upper wall. In other words, the Peltier element 12 is thus on a wall of the chamber 10, which adjoins the work space 1 and not to the evaporator 6 containing inner wall 8.
  • the execution is after Fig. 3 the interior 13 of the chamber 10 is not thermally insulated against the evaporator 6, so that not only the working space 1, but also the inner space 13 can be cooled directly by the evaporator 6.
  • the working space 1 and the inner space 13 respectively directly adjoin the (same) evaporator 6.
  • the evaporator 6 is advantageously designed so that it is able to dissipate more heat from the interior 13 per evaporator unit area (ie per backplane) than from the work space 1 by per evaporator unit area in the area 6b of the interior 13 of the Chamber 10 more lines of the evaporator are arranged as in the area 6a of the usable space 1.
  • the temperature in the chamber 10 is slightly lower than in the usable space. 1
  • the controller 18 is as MIMO control ("Multiple Input Multiple Output"). Control) configured, which controls the measured by the temperature sensors 19 and 20 temperatures in the interior 13 of the chamber 10 and in the work space 1 to two different setpoints by the heat pump 4 - 6 and the Peltier element 12 controls accordingly.
  • MIMO control Multiple Input Multiple Output
  • the power of the heat pump 4 - 6 is increased to lower the temperature in the working space 1 again. But to a freezing To prevent the Guts in the chamber 10, the Peltier element 12 is simultaneously operated so that it promotes heat from the work space 1 into the chamber 12.
  • each fan 21a and 21b arranged to improve the heat coupling of the Peltier element 12 to the work space 1 and the chamber 12, respectively.
  • each fan 21a, 21b associated with an air duct 22a and 22b, respectively, in which the fan moving air of the surface of the Peltier element 12 is guided along.
  • the chamber 10 is not removable from the device. However, it can also be designed removable. It is also conceivable that the insulation 11, which in the embodiment according to Fig. 3 is designed as an intermediate floor between the usable space 1 and the interior 13 of the chamber 10, the device can be removed, for example for cleaning purposes.
  • the chamber is arranged at the bottom of the work space.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP12008480.1A 2011-12-23 2012-12-20 Appareil ménager de refroidissement avec pompe à chaleur et éléments à effet Peltier Withdrawn EP2607821A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH02049/11A CH703730B1 (de) 2011-12-23 2011-12-23 Haushalts-Kühlgerät mit Wärmepumpe und Peltier-Element.

Publications (2)

Publication Number Publication Date
EP2607821A2 true EP2607821A2 (fr) 2013-06-26
EP2607821A3 EP2607821A3 (fr) 2015-12-16

Family

ID=45566739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12008480.1A Withdrawn EP2607821A3 (fr) 2011-12-23 2012-12-20 Appareil ménager de refroidissement avec pompe à chaleur et éléments à effet Peltier

Country Status (2)

Country Link
EP (1) EP2607821A3 (fr)
CH (1) CH703730B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015006559A1 (de) * 2015-01-29 2016-08-04 Liebherr-Hausgeräte Lienz Gmbh Wärmeisoliertes Behältnis
DE102017129119A1 (de) * 2017-10-24 2019-04-25 Liebherr-Hausgeräte Lienz Gmbh Temperiertes Gerät
DE102018107578A1 (de) * 2018-03-29 2019-10-02 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106471321A (zh) * 2014-06-16 2017-03-01 利勃海尔-家用电器奥克森豪森有限责任公司 热绝缘的容器
KR20230109436A (ko) * 2022-01-13 2023-07-20 엘지전자 주식회사 냉장고

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Publication number Priority date Publication date Assignee Title
FI773469A (fi) * 1977-11-16 1979-05-17 Asko Upo Oy Frysbox foer montering i kylskaop isynnerhet laekemedelskylskaop
JP4094267B2 (ja) * 2001-10-18 2008-06-04 松下冷機株式会社 コンポーネント冷蔵庫
DE10261366A1 (de) * 2002-12-30 2004-07-08 BSH Bosch und Siemens Hausgeräte GmbH Hilfskühlvorrichtung
JP2004333091A (ja) * 2003-05-12 2004-11-25 Matsushita Electric Ind Co Ltd 冷蔵庫
KR20060077396A (ko) * 2004-12-30 2006-07-05 엘지전자 주식회사 냉장고 및 냉장고의 하이브리드 냉각구조
EP2061997A2 (fr) * 2006-08-31 2009-05-27 Colipu A/S Système énergétique doté d'une pompe à chaleur
ES2330493B1 (es) * 2007-06-29 2010-09-16 Bsh Electrodomesticos España, S.A Aparato frigorifico y proceso para el mantenido constante de una temperatura predefinida en una camara frigorifica del aparato frigorifico.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015006559A1 (de) * 2015-01-29 2016-08-04 Liebherr-Hausgeräte Lienz Gmbh Wärmeisoliertes Behältnis
DE102017129119A1 (de) * 2017-10-24 2019-04-25 Liebherr-Hausgeräte Lienz Gmbh Temperiertes Gerät
DE102018107578A1 (de) * 2018-03-29 2019-10-02 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät

Also Published As

Publication number Publication date
CH703730A2 (de) 2012-02-15
CH703730A3 (de) 2012-04-30
CH703730B1 (de) 2015-06-15
EP2607821A3 (fr) 2015-12-16

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