US20130104568A1 - Magnetic cooling device and magnetocaloric module thereof - Google Patents

Magnetic cooling device and magnetocaloric module thereof Download PDF

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Publication number
US20130104568A1
US20130104568A1 US13/664,690 US201213664690A US2013104568A1 US 20130104568 A1 US20130104568 A1 US 20130104568A1 US 201213664690 A US201213664690 A US 201213664690A US 2013104568 A1 US2013104568 A1 US 2013104568A1
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United States
Prior art keywords
magnetocaloric
module
cooling device
thermal insulator
magnetic
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.)
Abandoned
Application number
US13/664,690
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English (en)
Inventor
Chung-Jung Kuo
Fu-Chou Hsiao
Sheng-Fan HSIEH
Tze-Chern MAO
Ming-Tsz LIN
Mao-Jen Hsu
Chi-Hsiang Kuo
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Delta Electronics Inc
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Delta Electronics Inc
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Publication date
Application filed by Delta Electronics Inc filed Critical Delta Electronics Inc
Publication of US20130104568A1 publication Critical patent/US20130104568A1/en
Assigned to DELTA ELECTRONICS, INC. reassignment DELTA ELECTRONICS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HSIAO, FU-CHOU, Hsieh, Sheng-Fan, HSU, MAO-JEN, KUO, CHI-HSIANG, KUO, CHUNG-JUNG, LIN, MING-TSZ, MAO, TZE-CHERN
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
    • 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 magnetic cooling device, and in particular relates to a magnetic cooling device and a magnetocaloric module with different magnetocaloric materials.
  • Magnetic cooling devices do not need refrigerants and condensers, and have a simple structure, and produces less noise. Additionally, magnetic cooling devices consume less energy and maintenance costs are low, which are important research areas in refrigeration technology.
  • an active magnetic regeneration (AMR) is disclosed, which has four different magnetocaloric materials (Gd 0.92 Y 0.08 Gd 0.84 DY 0.16 Gd 0.87 DY 0.13 Gd 0.89 Dy 0.11 ) serially arranged from a low temperature end C to a high temperature end H, wherein each magnetocaloric material has a different Curie Temperature.
  • AMR active magnetic regeneration
  • the Curie Temperature of a magnetocaloric material is the best working temperature of the magnetocaloric material.
  • heat is conducted along a serial direction between the magnetocaloric materials (along central axis A in FIG. 1 ), such that a temperature gradient therefore drops, and efficiency of the magnetic cooling device is decreased.
  • the embodiment of the invention provides a magnetic cooling device.
  • the magnetic cooling device includes a magnetocaloric module and a magnetic unit.
  • the magnetocaloric module includes a bed, a first magnetocaloric material, a second magnetocaloric material and a thermal insulator.
  • the first magnetocaloric material is disposed in the bed.
  • the second magnetocaloric material is disposed in the bed, wherein the Curie Temperature of the second magnetocaloric material is greater than the Curie Temperature of the first magnetocaloric material.
  • the thermal insulator is disposed between the first and second magnetocaloric materials to insulate heat conduction between the first and second magnetocaloric materials.
  • the magnetic unit is coupled to the magnetocaloric module, wherein the magnetic unit reciprocally applies different magnetic fields to the first and second magnetocaloric materials, wherein a heat transfer fluid flows through the first and second magnetocaloric to transfer heat from a low temperature end to a high temperature end of the magnetocaloric module.
  • the thermal insulator has a chamber, and the chamber is a vacuum or filled with gas.
  • the thermal insulator comprises Aerogel.
  • the thermal insulator comprises POM.
  • the thermal insulator comprises Teflon.
  • the thermal insulator comprises Asbesto.
  • At least one of the first and second magnetocaloric materials comprises gadolinium or gadolinium alloy.
  • At least one of the first and second magnetocaloric materials comprises yttrium alloy or dysprosium alloy.
  • At least one of the first and second magnetocaloric materials comprises manganese alloy or lanthanum alloy.
  • the magnetic unit is moved relative to the magnetocaloric module.
  • the first and second magnetocaloric materials are serially arranged along a central axis of the magnetocaloric module, and the heat transfer fluid passes through the first and second magnetocaloric materials along the central axis.
  • the embodiment of the invention further provides a magnetocaloric module, disposed in a magnetic cooling device, wherein a magnetic unit of the magnetic cooling device reciprocally applies different magnetic fields to the magnetocaloric module.
  • the magnetocaloric module comprises a bed, a first magnetocaloric material, a second magnetocaloric material and a thermal insulator.
  • the first magnetocaloric material is disposed in the bed.
  • the second magnetocaloric material is disposed in the bed, wherein the Curie Temperature of the second magnetocaloric material is greater than the Curie Temperature of the first magnetocaloric material.
  • the thermal insulator is disposed between the first and second magnetocaloric materials to insulate heat conduction between the first and second magnetocaloric materials, wherein a heat transfer fluid flows through the first and second magnetocaloric to transfer heat from a low temperature end to a high temperature end of the magnetocaloric module.
  • FIG. 1 shows a conventional magnetocaloric module
  • FIG. 2 shows a magnetic cooling device of an embodiment of the invention and a magnetocaloric module thereof
  • FIG. 3 shows a magnetocaloric module of another embodiment of the invention.
  • FIG. 2 shows a magnetic cooling device 100 of an embodiment of the invention.
  • the magnetic cooling device 100 comprises a magnetocaloric module 10 and a magnetic unit 20 (for example, magnet or electromagnet).
  • the magnetic unit 20 is disposed around the magnetocaloric module 10 , and reciprocally applies different magnetic fields to the magnetocaloric module 10 .
  • the magnetocaloric module 10 has a bed 11 , a first magnetocaloric material M 1 , a second magnetocaloric material M 2 and a thermal insulator 12 .
  • the first magnetocaloric material M 1 and the second magnetocaloric material M 2 are disposed in the bed 11 .
  • the thermal insulator 12 is disposed between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 .
  • a gap between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 can be filled with the thermal insulator 12 .
  • through holes or porous structures can be formed inside the thermal insulator 12 allowing a heat transfer fluid to flow therethrough.
  • the thermal insulator 12 can be made of Asbesto, Teflon, Polyoxymethylene (POM) or Aerogel to prevent heat from being conducted between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 .
  • the magnetic unit 20 When the magnetic cooling device 100 is working, the magnetic unit 20 is reciprocally rotated or moved relative to the magnetocaloric module 10 to apply different magnetic fields to the first magnetocaloric material M 1 and the second magnetocaloric material M 2 and to change the temperature of the first magnetocaloric material M 1 and the second magnetocaloric material M 2 in a particular frequency.
  • the Curie Temperature of the second magnetocaloric material M 2 is greater than the Curie Temperature of the first magnetocaloric material M 1 .
  • the heat transfer fluid enters the magnetocaloric module 10 through a low temperature end 101 (left side of the magnetocaloric module 10 ) thereof, travels through the first magnetocaloric material M 1 and the second magnetocaloric material M 2 along the central axis A, and exits the magnetocaloric module 10 through a high temperature end 102 (right side of the magnetocaloric module 10 ) thereof.
  • Heat is moved from the low temperature end 101 to the high temperature end 102 by the heat transfer fluid to provide a refrigerating function.
  • the heat insulator 12 disposed between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 , heat is prevented from being conducted between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 along the central axis A, such that the temperature gradient is prevented from dropping, and efficiency of the magnetic cooling device is improved.
  • FIG. 3 shows a magnetocaloric module 10 of another embodiment of the invention.
  • the magnetocaloric module 10 has a bed 11 , a first magnetocaloric material M 1 , a second magnetocaloric material M 2 and a thermal insulator 13 .
  • the thermal insulator 13 is a hollow structure and is disposed between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 .
  • the thermal insulator 13 can be made of Asbesto, Teflon, POM, Aerogel or other thermal insulating materials.
  • the thermal insulator 13 can include meshed or porous structures allowing the heat transfer fluid to flow therethrough.
  • a chamber 130 is formed inside the thermal insulator 13 to prevent heat from being conducted between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 .
  • the chamber 130 inside the thermal insulator 13 can be sealed, which is a vacuum or filled with gas (for example, air) to prevent heat from being conducted between the first magnetocaloric material M 1 and the second magnetocaloric material M 2 , and to prevent a temperature gradient from dropping.
  • gas for example, air
  • the efficiency of the magnetic cooling device is therefore improved.
  • the first magnetocaloric material M 1 and the second magnetocaloric material M 2 can be made of gadolinium, gadolinium alloy, yttrium alloy, dysprosium alloy, manganese alloy, lanthanum alloy or other magnetocaloric materials.
  • the invention provides a magnetic cooling device and magnetocaloric module thereof, wherein a plurality of different magnetocaloric materials are disposed in the magnetocaloric module, and thermal insulator is disposed between the magnetocaloric materials to prevent heat conduction therebetween.
  • the thermal insulator slightly increases the dimension of the magnetocaloric module, but sufficiently prevents a temperature gradient from dropping.
  • the magnetocaloric module of the invention can be widely utilized in various magnetic cooling devices.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Hard Magnetic Materials (AREA)
US13/664,690 2011-10-31 2012-10-31 Magnetic cooling device and magnetocaloric module thereof Abandoned US20130104568A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW100139499A TWI453365B (zh) 2011-10-31 2011-10-31 磁製冷裝置及其磁熱模組
TW100139499 2011-10-31

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DE (1) DE102012110415A1 (de)
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WO2016018451A1 (en) * 2014-07-28 2016-02-04 Astronautics Corporation Of America Magnetic refrigeration system with separated inlet and outlet flow
CN105829812A (zh) * 2013-12-17 2016-08-03 美国宇航公司 流动效率提高的磁制冷系统
US9857105B1 (en) 2016-10-10 2018-01-02 Haier Us Appliance Solutions, Inc. Heat pump with a compliant seal
US9857106B1 (en) 2016-10-10 2018-01-02 Haier Us Appliance Solutions, Inc. Heat pump valve assembly
US9869493B1 (en) 2016-07-19 2018-01-16 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US20180023858A1 (en) * 2016-07-19 2018-01-25 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US9915448B2 (en) 2016-07-19 2018-03-13 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10006672B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10006674B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10006675B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10047980B2 (en) 2016-07-19 2018-08-14 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10222101B2 (en) 2016-07-19 2019-03-05 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10274231B2 (en) 2016-07-19 2019-04-30 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10281177B2 (en) 2016-07-19 2019-05-07 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10288326B2 (en) 2016-12-06 2019-05-14 Haier Us Appliance Solutions, Inc. Conduction heat pump
US10295227B2 (en) * 2016-07-19 2019-05-21 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10299655B2 (en) 2016-05-16 2019-05-28 General Electric Company Caloric heat pump dishwasher appliance
US10386096B2 (en) 2016-12-06 2019-08-20 Haier Us Appliance Solutions, Inc. Magnet assembly for a magneto-caloric heat pump
US10422555B2 (en) 2017-07-19 2019-09-24 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10443585B2 (en) 2016-08-26 2019-10-15 Haier Us Appliance Solutions, Inc. Pump for a heat pump system
US10451320B2 (en) 2017-05-25 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with water condensing features
US10451322B2 (en) 2017-07-19 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10520229B2 (en) 2017-11-14 2019-12-31 Haier Us Appliance Solutions, Inc. Caloric heat pump for an appliance
US10527325B2 (en) 2017-03-28 2020-01-07 Haier Us Appliance Solutions, Inc. Refrigerator appliance
US10551095B2 (en) 2018-04-18 2020-02-04 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10557649B2 (en) 2018-04-18 2020-02-11 Haier Us Appliance Solutions, Inc. Variable temperature magneto-caloric thermal diode assembly
US10641539B2 (en) 2018-04-18 2020-05-05 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10648705B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10648706B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with an axially pinned magneto-caloric cylinder
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US10684044B2 (en) 2018-07-17 2020-06-16 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with a rotating heat exchanger
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US10830506B2 (en) 2018-04-18 2020-11-10 Haier Us Appliance Solutions, Inc. Variable speed magneto-caloric thermal diode assembly
US10876770B2 (en) 2018-04-18 2020-12-29 Haier Us Appliance Solutions, Inc. Method for operating an elasto-caloric heat pump with variable pre-strain
US10989449B2 (en) 2018-05-10 2021-04-27 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with radial supports
US11009282B2 (en) 2017-03-28 2021-05-18 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US11015842B2 (en) 2018-05-10 2021-05-25 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with radial polarity alignment
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US11125477B2 (en) 2017-08-25 2021-09-21 Astronautics Corporation Of America Drum-type magnetic refrigeration apparatus with improved magnetic-field source
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KR101843700B1 (ko) 2014-07-28 2018-05-14 애스트로노틱스 코포레이션 오브 아메리카 분리된 입구 및 출구 흐름을 갖는 자기 냉동 시스템
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US9677792B2 (en) 2014-07-28 2017-06-13 Astronautics Corporation Of America Magnetic refrigeration system with separated inlet and outlet flow
JP2017522532A (ja) * 2014-07-28 2017-08-10 アストロノーティックス コーポレイション オブ アメリカ 分離した入口流及び出口流を有する磁気冷却システム
WO2016018451A1 (en) * 2014-07-28 2016-02-04 Astronautics Corporation Of America Magnetic refrigeration system with separated inlet and outlet flow
US10299655B2 (en) 2016-05-16 2019-05-28 General Electric Company Caloric heat pump dishwasher appliance
US10222101B2 (en) 2016-07-19 2019-03-05 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10295227B2 (en) * 2016-07-19 2019-05-21 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US9915448B2 (en) 2016-07-19 2018-03-13 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US9869493B1 (en) 2016-07-19 2018-01-16 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10006672B2 (en) 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10006673B2 (en) * 2016-07-19 2018-06-26 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
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US10648703B2 (en) 2016-07-19 2020-05-12 Haier US Applicance Solutions, Inc. Caloric heat pump system
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US10281177B2 (en) 2016-07-19 2019-05-07 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US20180023858A1 (en) * 2016-07-19 2018-01-25 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10443585B2 (en) 2016-08-26 2019-10-15 Haier Us Appliance Solutions, Inc. Pump for a heat pump system
US9857106B1 (en) 2016-10-10 2018-01-02 Haier Us Appliance Solutions, Inc. Heat pump valve assembly
US9857105B1 (en) 2016-10-10 2018-01-02 Haier Us Appliance Solutions, Inc. Heat pump with a compliant seal
US10288326B2 (en) 2016-12-06 2019-05-14 Haier Us Appliance Solutions, Inc. Conduction heat pump
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US10527325B2 (en) 2017-03-28 2020-01-07 Haier Us Appliance Solutions, Inc. Refrigerator appliance
US11009282B2 (en) 2017-03-28 2021-05-18 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10451320B2 (en) 2017-05-25 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with water condensing features
US10422555B2 (en) 2017-07-19 2019-09-24 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10451322B2 (en) 2017-07-19 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
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