US20090178418A1 - Refrigerator and/or freezer - Google Patents

Refrigerator and/or freezer Download PDF

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Publication number
US20090178418A1
US20090178418A1 US12/317,312 US31731208A US2009178418A1 US 20090178418 A1 US20090178418 A1 US 20090178418A1 US 31731208 A US31731208 A US 31731208A US 2009178418 A1 US2009178418 A1 US 2009178418A1
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Prior art keywords
heat exchanger
cross
warm
refrigerator
sectional area
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Abandoned
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US12/317,312
Inventor
Matthias Wiest
Didier Siegel
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Liebherr Hausgeraete Ochsenhausen GmbH
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Liebherr Hausgeraete Ochsenhausen GmbH
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Assigned to LIEBHERR-HAUSGERATE OCHSENHAUSEN GMBH reassignment LIEBHERR-HAUSGERATE OCHSENHAUSEN GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WIEST, MATTHIAS, SIEGEL, DIDIER
Publication of US20090178418A1 publication Critical patent/US20090178418A1/en
Abandoned 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
    • 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
    • F25B2321/002—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects
    • F25B2321/0022—Details of machines, plants or systems, using electric or magnetic effects by using magneto-caloric effects with a rotating or otherwise moving magnet
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/18—Optimization, e.g. high integration of refrigeration components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present invention relates to a refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium.
  • a heat transfer medium flowing through a heat transfer circuit is heated and cooled by utilizing the so-called magnetocaloric effect.
  • the process steps performed usually include the magnetization, the extraction of heat, the demagnetization and the cold use, which steps are repeated continuously.
  • a conceivable heat transfer circuit comprises a so-called cold heat exchanger, said magnetic cooler, a warm heat exchanger and a pump for delivering the heat transfer medium through the heat transfer circuit.
  • the heat transfer medium During the magnetization of the magnetocaloric material, the same undergoes heating. The heat is transferred to the heat transfer medium.
  • the pump By means of the pump, the heat transfer medium then is delivered into the warm heat exchanger, in which it is cooled. Subsequently, the further cooling of the heat transfer medium is effected in the demagnetized and therefore cooled region of the magnetic cooler.
  • the heat transfer medium cooled in this way then traverses the cold heat exchanger, which serves for cooling the goods to be refrigerated and/or frozen.
  • the heat transfer medium is heated thereby and then is again heated further in the magnetized region of the magnetic cooler. Finally, it again reaches said warm heat exchanger via the pump.
  • the warm heat exchanger has a cross-section between 14 mm 2 and 54 mm 2 .
  • the warm heat exchanger has a cross-section between 24 mm 2 and 44 mm 2 , preferably between 30 mm 2 and 38 mm 2 , and particularly preferably between 32 mm 2 and 36 mm 2 .
  • a particularly preferred value is about 34 mm 2 .
  • the cold heat exchanger has a cross-section between 30 mm 2 and 70 mm 2 .
  • the cold heat exchanger has a cross-section between 40 mm 2 and 60 mm 2 , preferably between 46 mm 2 and 54 mm 2 , and particularly preferably between 48 mm 2 and 52 mm 2 .
  • a particularly suitable value for the cross-sectional area of the cold heat exchanger is about 50 mm 2 .
  • cross-section is understood to be the internal cross-section, i.e. the flow cross-section of the heat exchanger(s) available for the heat transfer medium.
  • the indicated values can be absolute values or also mean values.
  • the advantage of a great cross-section consists in the comparatively low pressure loss and a resulting low energy consumption of the pump delivering the heat transfer medium.
  • the advantages of a small cross-section consist in the comparatively small filling volume, which leads to a short defrosting phase and involves an improved refrigerating capacity.
  • an optimum compromise is achieved between the refrigerating capacity on the one hand and the energy consumption of the pump on the other hand.
  • a low energy consumption of the magnetic cooler is achieved by the present invention in a refrigerator and/or freezer.
  • both the cold heat exchanger and the warm heat exchanger have the above-mentioned preferred cross-sectional values. Accordingly, a preferred aspect of the invention consists in that the refrigerator is configured in accordance with the description herein.
  • the cross-sectional area of the warm and/or cold heat exchanger can be constant, i.e. hardly change along the flow path or not at all.
  • cross-sectional area of the warm and/or of the cold heat exchanger is variable, i.e. changes along the flow path of the heat transfer medium through the heat exchanger(s), and that the cross-sectional values are mean values.
  • the warm heat exchanger and/or the cold heat exchanger is made of one tube or of two or more than two tubes, which can extend in parallel.
  • the warm heat exchanger and/or the cold heat exchanger is made of one tube or of two or more than two tubes, which can extend in parallel.
  • the cross-sectional values can be the entire cross-sectional area of the two or more than two tubes, i.e. the sum of the cross-sections of the individual tubes. In this case, a plurality of tubes with a smaller cross-sectional area thus could be provided instead of one tube.
  • the tubes can be round in cross-section or also have any other cross-sectional shape.
  • the present invention furthermore relates to a refrigerator and/or freezer with the following features. Accordingly, it is provided that the cross-sectional area of the cold heat exchanger is greater than the cross-sectional area of the warm heat exchanger. If these are cross-sectional areas which vary along the flow path, it can provided that the mean value of the cross-sectional area of the cold heat exchanger is greater than the mean value of the cross-sectional area of the warm heat exchanger.
  • the invention of course also covers an embodiment with constant or substantially constant cross-sectional areas, i.e. cross-sectional areas which do not or not substantially vary along the flow path. It is conceivable, for instance, that the cross-sectional area of the cold heat exchanger exceeds that of the warm heat exchanger by values in the range from >0 to 25 mm 2 .
  • Reference numeral 10 designates the magnetic cooler, which comprises two heat exchanger units 12 , 14 , which can be configured as a constructional unit or also separate from each other.
  • the heat exchanger untis 12 , 14 are made of a magnetocaloric material or include such material.
  • the heat exchanger units 12 , 14 are magnetized or demagnetized, which results in the heating or cooling thereof and also in the heating or cooling of the heat transfer medium which flows through the heat exchanger units 12 , 14 .
  • the heat transfer circuit of the refrigerator and/or freezer furthermore includes a cold heat exchanger 20 , which is arranged in the refrigerating and/or freezing space or in the vicinity of the refrigerating and/or freezing space of the appliance and provides for cooling the same.
  • a warm, preferably air-cooled heat exchanger 50 is arranged on the outside of the appliance and serves to dissipate heat from the heat transfer medium to the surroundings.
  • the pump 100 provides for the flow of the heat transfer medium through the illustrated heat transfer circuit.
  • valve 40 Downstream of the cold heat exchanger 20 a valve 40 is arranged, and downstream of the warm heat exchanger 50 a further valve 30 is arranged.
  • the valves are for instance bistable or monostable valves.
  • the valves 30 , 40 are actuated such that the heat transfer medium from the warm heat exchanger 50 always gets into that heat exchanger unit 12 , 14 which is just cooled or demagnetized, and from there into the cold heat exchanger 20 .
  • the valve 40 is actuated such that the heat transfer medium which has traversed the cold heat exchanger 20 is supplied to that heat exchanger unit 12 , 14 which is in the magnetized condition and therefore heated.
  • the mean flow cross-section of the cold heat exchanger 20 is about 50 mm 2 and that the mean flow cross-section of the warm heat exchanger 50 is about 34 mm 2 .
  • the present invention represents an optimum compromise between these parameters and thus allows to provide a refrigerator and/or freezer with magnetic cooling, which has a low energy consumption.
  • the cold heat exchanger and/or the warm heat exchanger can be made of one single tube or of two or also more than two tubes which are traversed by the heat transfer medium.
  • the two or more than two tubes can be installed in parallel. However, this is not absolutely necessary.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The present invention relates to a refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance, and a warm heat exchanger for cooling the heat transfer medium, wherein the warm heat exchanger has a cross-sectional area between 14 mm2 and 54 mm2.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to a refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium.
  • In the case of magnetic cooling, a heat transfer medium flowing through a heat transfer circuit is heated and cooled by utilizing the so-called magnetocaloric effect. The process steps performed usually include the magnetization, the extraction of heat, the demagnetization and the cold use, which steps are repeated continuously.
  • For performing these process steps, different methods are known. It is conceivable, for instance, to use a stationarily arranged magnetocaloric material and one or more rotating magnets, which periodically magnetize and demagnetize the magnetocaloric material, wherein the same undergoes heating and cooling. Heating and cooling of the magnetocaloric material are utilized for heating or cooling the heat transfer medium flowing through the magnetic cooler. It is also conceivable to stationarily arrange the magnet or magnets and movably arrange the magnetocaloric material or to provide the magnetocaloric material in the heat transfer medium
  • A conceivable heat transfer circuit comprises a so-called cold heat exchanger, said magnetic cooler, a warm heat exchanger and a pump for delivering the heat transfer medium through the heat transfer circuit. During the magnetization of the magnetocaloric material, the same undergoes heating. The heat is transferred to the heat transfer medium. By means of the pump, the heat transfer medium then is delivered into the warm heat exchanger, in which it is cooled. Subsequently, the further cooling of the heat transfer medium is effected in the demagnetized and therefore cooled region of the magnetic cooler. The heat transfer medium cooled in this way then traverses the cold heat exchanger, which serves for cooling the goods to be refrigerated and/or frozen. The heat transfer medium is heated thereby and then is again heated further in the magnetized region of the magnetic cooler. Finally, it again reaches said warm heat exchanger via the pump.
    • SUMMARY OF THE INVENTION
  • It is the object underlying the present invention to develop a refrigerator and/or freezer as mentioned above such that its energy consumption is reduced as compared to known appliances.
  • This object is solved by a refrigerator and/or freezer with the features herein.
  • Accordingly, it is provided that the warm heat exchanger has a cross-section between 14 mm2 and 54 mm2. For instance, it can be provided that the warm heat exchanger has a cross-section between 24 mm2 and 44 mm2, preferably between 30 mm2 and 38 mm2, and particularly preferably between 32 mm2 and 36 mm2. A particularly preferred value is about 34 mm2.
  • This invention furthermore relates to a refrigerator and/or freezer with the features of claim 3. Accordingly, it is provided that the cold heat exchanger has a cross-section between 30 mm2 and 70 mm2. For instance, it can be provided that the cold heat exchanger has a cross-section between 40 mm2 and 60 mm2, preferably between 46 mm2 and 54 mm2, and particularly preferably between 48 mm2 and 52 mm2. A particularly suitable value for the cross-sectional area of the cold heat exchanger is about 50 mm2.
  • In accordance with the present invention, the term “cross-section” is understood to be the internal cross-section, i.e. the flow cross-section of the heat exchanger(s) available for the heat transfer medium. The indicated values can be absolute values or also mean values.
  • In principle, the advantage of a great cross-section consists in the comparatively low pressure loss and a resulting low energy consumption of the pump delivering the heat transfer medium. The advantages of a small cross-section consist in the comparatively small filling volume, which leads to a short defrosting phase and involves an improved refrigerating capacity. By means of the present invention, an optimum compromise is achieved between the refrigerating capacity on the one hand and the energy consumption of the pump on the other hand. In general, a low energy consumption of the magnetic cooler is achieved by the present invention in a refrigerator and/or freezer.
  • Particularly advantageously, both the cold heat exchanger and the warm heat exchanger have the above-mentioned preferred cross-sectional values. Accordingly, a preferred aspect of the invention consists in that the refrigerator is configured in accordance with the description herein.
  • The cross-sectional area of the warm and/or cold heat exchanger can be constant, i.e. hardly change along the flow path or not at all.
  • However, it is also conceivable that the cross-sectional area of the warm and/or of the cold heat exchanger is variable, i.e. changes along the flow path of the heat transfer medium through the heat exchanger(s), and that the cross-sectional values are mean values.
  • In a further aspect of the invention it is provided that the warm heat exchanger and/or the cold heat exchanger is made of one tube or of two or more than two tubes, which can extend in parallel. Thus, it is conceivable to distribute the heat transfer medium to several tubes.
  • If the warm heat exchanger and/or the cold heat exchanger is made of two or more than two tubes, the cross-sectional values can be the entire cross-sectional area of the two or more than two tubes, i.e. the sum of the cross-sections of the individual tubes. In this case, a plurality of tubes with a smaller cross-sectional area thus could be provided instead of one tube.
  • The tubes can be round in cross-section or also have any other cross-sectional shape.
  • The present invention furthermore relates to a refrigerator and/or freezer with the following features. Accordingly, it is provided that the cross-sectional area of the cold heat exchanger is greater than the cross-sectional area of the warm heat exchanger. If these are cross-sectional areas which vary along the flow path, it can provided that the mean value of the cross-sectional area of the cold heat exchanger is greater than the mean value of the cross-sectional area of the warm heat exchanger. However, the invention of course also covers an embodiment with constant or substantially constant cross-sectional areas, i.e. cross-sectional areas which do not or not substantially vary along the flow path. It is conceivable, for instance, that the cross-sectional area of the cold heat exchanger exceeds that of the warm heat exchanger by values in the range from >0 to 25 mm2.
  • In principle, however, the invention also covers the case that the cross-sectional areas of both heat exchangers are identical.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Further details and advantages of the invention will be shown with reference to an embodiment illustrated in the drawing.
    •  DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Reference numeral 10 designates the magnetic cooler, which comprises two heat exchanger units 12, 14, which can be configured as a constructional unit or also separate from each other.
  • The heat exchanger untis 12, 14 are made of a magnetocaloric material or include such material.
  • They are cyclically magnetized and demagnetized, for which purpose a non-illustrated magnet is provided, which rotates about the heat exchanger units 12, 14. Depending on the position of the magnet, the heat exchanger units 12, 14 are magnetized or demagnetized, which results in the heating or cooling thereof and also in the heating or cooling of the heat transfer medium which flows through the heat exchanger units 12, 14.
  • The heat transfer circuit of the refrigerator and/or freezer furthermore includes a cold heat exchanger 20, which is arranged in the refrigerating and/or freezing space or in the vicinity of the refrigerating and/or freezing space of the appliance and provides for cooling the same. A warm, preferably air-cooled heat exchanger 50 is arranged on the outside of the appliance and serves to dissipate heat from the heat transfer medium to the surroundings.
  • The pump 100 provides for the flow of the heat transfer medium through the illustrated heat transfer circuit.
  • Downstream of the cold heat exchanger 20 a valve 40 is arranged, and downstream of the warm heat exchanger 50 a further valve 30 is arranged. The valves are for instance bistable or monostable valves. In cooling operation, the valves 30, 40 are actuated such that the heat transfer medium from the warm heat exchanger 50 always gets into that heat exchanger unit 12, 14 which is just cooled or demagnetized, and from there into the cold heat exchanger 20. The valve 40 is actuated such that the heat transfer medium which has traversed the cold heat exchanger 20 is supplied to that heat exchanger unit 12, 14 which is in the magnetized condition and therefore heated.
  • In the embodiment illustrated here it is provided that the mean flow cross-section of the cold heat exchanger 20 is about 50 mm2 and that the mean flow cross-section of the warm heat exchanger 50 is about 34 mm2.
  • In this way, it is ensured that the energy consumption of the pump is comparatively low and the refrigerating capacity of the heat exchanger comparatively high. The present invention represents an optimum compromise between these parameters and thus allows to provide a refrigerator and/or freezer with magnetic cooling, which has a low energy consumption.
  • The cold heat exchanger and/or the warm heat exchanger can be made of one single tube or of two or also more than two tubes which are traversed by the heat transfer medium. The two or more than two tubes can be installed in parallel. However, this is not absolutely necessary.

Claims (20)

1. A refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium, wherein the warm heat exchanger has a cross-sectional area between 14 mm2 and 54 mm2.
2. The refrigerator and/or freezer according to claim 1, wherein the warm heat exchanger has a cross-sectional area between 24 mm2 and 44 mm2, preferably between 30 mm2 and 38 mm2, and particularly preferably between 32 mm2 and 36 mm2.
3. A refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium, wherein the cold heat exchanger has a cross-sectional area between 30 mm2 and 70 mm2.
4. The refrigerator and/or freezer according to claim 3, wherein the cold heat exchanger has a cross-sectional area between 40 mm2 and 60 mm2, preferably between 46 mm2 and 54 mm2, and particularly preferably between 48 mm2 and 52 mm2.
5. The refrigerator and/or freezer according to claim 3, wherein the appliance is configured in accordance with the warm heat exchanger having a cross-sectional area between 14 mm2 and 54 mm2.
6. The refrigerator and/or freezer according to claim 1, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant.
7. The refrigerator and/or freezer according to claim 1, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value values.
8. The refrigerator and/or freezer according to claim 1, wherein the warm heat exchanger and/or the cold heat exchanger is made of one tube or of two or more than two tubes which preferably extend in parallel.
9. The refrigerator and/or freezer according to claim 8, wherein the warm heat exchanger and/or the cold heat exchanger is made of two or more than two tubes extending in parallel and the cross-sectional value is the total cross-sectional area of the two or more than two tubes.
10. A refrigerator and/or freezer with a heat transfer circuit, which comprises a magnetic cooler, a pump for delivering the heat transfer medium, a cold heat exchanger for cooling the refrigerating and/or freezing space of the appliance and a warm heat exchanger for cooling the heat transfer medium, wherein the cross-sectional area of the warm heat exchanger is smaller than the cross-sectional area of the cold heat exchanger.
11. The refrigerator and/or freezer according to claim 10, wherein the appliance is configured in accordance with the warm heat exchanger having a cross-sectional area between 14 mm2 and 54 mm2.
12. The refrigerator and/or freezer according to claim 4, wherein the appliance is configured in accordance with the warm heat exchanger having a cross-sectional area between 14 mm2 and 54 mm2.
13. The refrigerator and/or freezer according to claim 12, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant.
14. The refrigerator and/or freezer according to claim 2, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant.
15. The refrigerator and/or freezer according to claim 3, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant.
16. The refrigerator and/or freezer according to claim 4, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant.
17. The refrigerator and/or freezer according to claim 5, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is constant.
18. The refrigerator and/or freezer according to claim 17, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value.
19. The refrigerator and/or freezer according to claim 16, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value.
20. The refrigerator and/or freezer according to claim 15, wherein the cross-sectional area of the warm and/or of the cold heat exchanger is variable and a mean value.
US12/317,312 2007-12-21 2008-12-22 Refrigerator and/or freezer Abandoned US20090178418A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEUM202007017897.2 2007-12-21
DE202007017897 2007-12-21
DE202008001117U DE202008001117U1 (en) 2007-12-21 2008-01-25 Fridge and / or freezer
DEUM202008001117.5 2008-01-25

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US20090178418A1 true US20090178418A1 (en) 2009-07-16

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US12/317,312 Abandoned US20090178418A1 (en) 2007-12-21 2008-12-22 Refrigerator and/or freezer

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US (1) US20090178418A1 (en)
EP (1) EP2072935B1 (en)
CN (1) CN101526293B (en)
DE (1) DE202008001117U1 (en)
ES (1) ES2547859T3 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110056662A1 (en) * 2008-05-28 2011-03-10 Tsiyo Nippon Sanso Corporation Refrigerant cooling apparatus
US20120222428A1 (en) * 2009-11-11 2012-09-06 Serdar Celik Combined-loop magnetic refrigeration system
ITPN20110023A1 (en) * 2011-04-11 2012-10-12 Parker Hannifin S R L APPARATUS AND PROCEDURE TO COOL A GAS, IN PARTICULAR COMPRESS
US20130180263A1 (en) * 2012-01-16 2013-07-18 Samsung Electronics Co., Ltd. Magnetic cooling apparatus and control method thereof
FR3003344A1 (en) * 2013-03-14 2014-09-19 Cooltech Applications THERMAL APPARATUS
CN105823298A (en) * 2015-01-06 2016-08-03 青岛海尔特种电冰柜有限公司 Modularization magnetic refrigeration wine cabinet

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936379A (en) * 1986-07-29 1990-06-26 Showa Aluminum Kabushiki Kaisha Condenser for use in a car cooling system
US5444983A (en) * 1994-02-28 1995-08-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Magnetic heat pump flow director
US6023935A (en) * 1998-02-23 2000-02-15 Mitsubishi Denki Kabushiki Kaisha Air conditioner
US6668560B2 (en) * 2001-12-12 2003-12-30 Astronautics Corporation Of America Rotating magnet magnetic refrigerator
US20060218936A1 (en) * 2005-03-31 2006-10-05 Tadahiko Kobayashi Magnetic refrigerator
KR100684521B1 (en) * 2005-12-21 2007-02-20 주식회사 대우일렉트로닉스 Magnetic refrigerator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08247576A (en) * 1995-03-14 1996-09-27 Toshiba Corp Air-conditioner
DE60128361T2 (en) * 2000-08-09 2008-01-17 Astronautics Corp. Of America, Milwaukee MAGNETIC REFRIGERATOR WITH ROTATING BED
JP2002195683A (en) * 2000-12-20 2002-07-10 Denso Corp Magnetic temperature regulating apparatus
CN1187560C (en) * 2002-09-25 2005-02-02 包头稀土研究院 Cold feedback system for magnetic liquid refrigeration
CN1207523C (en) * 2003-07-31 2005-06-22 清华大学 Static type room temperature magnetic refrigerator
FR2890158A1 (en) * 2005-09-01 2007-03-02 Cooltech Applic Soc Par Action Thermal generator for e.g. refrigerator, has collector circuits linked to hot and cold heat transfer fluid circuits whose fluids are set in alternating motion in one collector circuit upon subjecting thermal elements to magnetic field
JP4660412B2 (en) * 2006-03-30 2011-03-30 株式会社東芝 refrigerator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936379A (en) * 1986-07-29 1990-06-26 Showa Aluminum Kabushiki Kaisha Condenser for use in a car cooling system
US5444983A (en) * 1994-02-28 1995-08-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Magnetic heat pump flow director
US6023935A (en) * 1998-02-23 2000-02-15 Mitsubishi Denki Kabushiki Kaisha Air conditioner
US6668560B2 (en) * 2001-12-12 2003-12-30 Astronautics Corporation Of America Rotating magnet magnetic refrigerator
US20060218936A1 (en) * 2005-03-31 2006-10-05 Tadahiko Kobayashi Magnetic refrigerator
KR100684521B1 (en) * 2005-12-21 2007-02-20 주식회사 대우일렉트로닉스 Magnetic refrigerator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Machine Translation for KR-100684521-B1 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110056662A1 (en) * 2008-05-28 2011-03-10 Tsiyo Nippon Sanso Corporation Refrigerant cooling apparatus
US20120222428A1 (en) * 2009-11-11 2012-09-06 Serdar Celik Combined-loop magnetic refrigeration system
ITPN20110023A1 (en) * 2011-04-11 2012-10-12 Parker Hannifin S R L APPARATUS AND PROCEDURE TO COOL A GAS, IN PARTICULAR COMPRESS
WO2012139983A1 (en) 2011-04-11 2012-10-18 Parker Hannifin S.R.L. Apparatus and method for the refrigeration of a gas flow, in particular compressed gas
US20130180263A1 (en) * 2012-01-16 2013-07-18 Samsung Electronics Co., Ltd. Magnetic cooling apparatus and control method thereof
US9217588B2 (en) * 2012-01-16 2015-12-22 Samsung Electronics Co., Ltd. Magnetic cooling apparatus and control method thereof
FR3003344A1 (en) * 2013-03-14 2014-09-19 Cooltech Applications THERMAL APPARATUS
WO2014140762A3 (en) * 2013-03-14 2014-12-24 Cooltech Applications S.A.S. Thermal apparatus
US10295225B2 (en) 2013-03-14 2019-05-21 Cooltech Applications S.A.S. Thermal apparatus
CN105823298A (en) * 2015-01-06 2016-08-03 青岛海尔特种电冰柜有限公司 Modularization magnetic refrigeration wine cabinet

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DE202008001117U1 (en) 2009-04-30
EP2072935A1 (en) 2009-06-24
ES2547859T3 (en) 2015-10-09

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