CN102706028A - Magnetic cold storage device for magnetic refrigerator - Google Patents
Magnetic cold storage device for magnetic refrigerator Download PDFInfo
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- CN102706028A CN102706028A CN2012101559447A CN201210155944A CN102706028A CN 102706028 A CN102706028 A CN 102706028A CN 2012101559447 A CN2012101559447 A CN 2012101559447A CN 201210155944 A CN201210155944 A CN 201210155944A CN 102706028 A CN102706028 A CN 102706028A
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Abstract
The invention discloses a thermal-switch magnetic cold storage device for a magnetic refrigerator. The device is arranged in a controllable magnetic field source and comprises a magnetic cold storage device which forms a heat transfer loop and a heat transfer assembly; the heat transfer assembly comprises at least one thermal switch unit; the magnetic cold storage device is a container filled with magnetic mediums; a portion of the thermal switch unit is arranged in the magnetic cold storage device to contact the magnetic mediums, and effectively enable the magnetic mediums to perform heat transport with the outside world during a magnetic field variation process. The thermal switch is a thermal diode, a superconductive switch or a heat transfer control device in the other modes; the magnetic mediums are solids, liquids or magnetic thermal materials in the other modes. The magnetic mediums give out heat to a heat source in a magnetizing stage and absorb heat from a cold source in a demagnetization stage by action of the controllable magnetic field so as to achieve the purpose of refrigeration. The device has good heat transport directivity and high-efficiency magnetic heat coupling mechanism; and the device has the advantages of high efficiency, compact structure, operation stability and good economical efficiency.
Description
Technical field
The invention belongs to clear energy sources magnetic Refrigeration Technique application, be specifically related to a kind of magnetic cold-storing device that is used for magnetic refrigerator, it can improve electromagnetic energy and heat energy energy conversion efficiency, reliability, economy and practicality.
Background technology
The magnetic refrigeration is based on the application of the magnetothermal effect (MCE) of magnetic material at refrigerating field.Magnetothermal effect is a kind of inherent characteristic of magnetic material material.When magnetic material was magnetized in the effect that receives external magnetic field, the magnetic order degree of system was strengthened (magnetic entropy reduces), heat release to external world; When external magnetic field removed demagnetization, the magnetic order degree descended (magnetic entropy increase), then absorbs heat from the external world.Thermodynamic cycle with a sealing of processes such as excitation, heat absorption, degaussing, heat release composition changes through external magnetic field, and the control magnetic entropy based on the power conversion of magnetothermal effect, reaches continuously from an end heat release, from the refrigeration purpose of other end heat absorption.
The magnetic Refrigeration Technique is a kind of Refrigeration Technique of high effective green environmentally friendly.Compare with the Refrigeration Technique that expands with existing general traditional dependence gas compression, have significant advantage:
1. magnetic kind of refrigeration cycle efficient can reach 30%～60% of Carnot cycle, and relies on the compression of gas and the kind of refrigeration cycle of expansion generally can only reach 5%～10%.
2. the magnetic refrigeration adopts magnetic material as refrigeration working medium, to atmosphere and the pollution-free destruction of ozone layer.
3. the entropy density of magnetic working material is much larger than the entropy density of gas, thus refrigerating plant can do compacter.
4. the magnetic refrigeration can provide required externally-applied magnetic field with electromagnet or superconducting magnet and permanent magnet etc., need not compressor, does not have the mechanical wear problem of moving component.Therefore have mechanical oscillation and noise is little, functional reliability is high, characteristics such as long service life.
Though the magnetic refrigerator technology has significant technological merit, in actual design and manufacturing, exist some key technologies and technical barrier.
When temperature more than 20K; Near the particularly near room temperature, the warm-up movement of magnetic ion system is strengthened greatly, and the lattice entropy of magnetic material increases to the degree that can not ignore; The part refrigerating capacity of magnetic refrigerating system will be consumed in cooling lattice thermic load, thereby the refrigerating capacity of system descends.
In system, increasing magnetic regenerator can store the heat that the lattice system discharges in a certain stage of circulation; And be restored to again in the lattice system in another stage; That part of refrigerating capacity that is used to cool off the lattice thermic load like this in the magnetic refrigerating system will be used more effectively; Effectively Entropy Changes increases, and temperature is striden increase.
The main problem in science of magnetic Refrigeration Technique is the coupling mechanism and the available heat transport mechanism of electromagnetic energy and heat energy.From improving the thermal efficiency of magnetic refrigerator, how the cold that MCE is produced is taken away to the greatest extent in the cycle of kind of refrigeration cycle as early as possible, and except adopting efficiently heat transfer mechanism, the directionality that reduces heat backflow, the transmission of assurance heat just seems particularly important like this.
With respect to existing magnetic refrigerator with valve control heat direction of transfer; Adopt the magnetic refrigerator of thermal switch (like thermal diode) not only simple in structure, reliable; And it can control the heat transmission in the magnetic cold-storing device more fast, directly, effectively; Thereby adopt the magnetic refrigerator of thermal switch magnetic cold-storing device can reduce the irreversible loss in the circulation largely; Make the actual magnetic kind of refrigeration cycle that obtains more near reverse Carnot cycle, thereby make magnetic refrigerator can obtain the higher thermal efficiency.
On April 7th, 2004 disclosed CN 2610281Y Chinese patent document " a kind of heat transfer unit (HTU) of magnetic heat ", this device adopts heat pipe to transmit the heat that magnetothermal effect produces, and has the simple and high-efficient characteristics.But not enough is that this patent documentation is only single as a kind of heat transfer unit (HTU).
On January 30th, 2008, the Chinese invention patent prospectus of disclosed CN 101115962A disclosed the method that a kind of manufacturing is used for the magnetic regenerator of active magnetic refrigerator, in the active magnetic regenerator magnetic material be magnetic working medium be again cool storage material.But regenerator some subject matters in reverse thermodynamic cycle are not related to.Generally speaking, this respect report is very few both at home and abroad at present.
The magnetic Refrigeration Technique is electromagnetic energy and heat energy conversion, and research magnetic thermal coupling mechanism is to break through the magnetic Refrigeration Technique to use main theoretical foundation and key technology.Transport the coupling with thermotransport at lattice system electromagnetism, both had transient state sequential property, have strict direction of heat flow property again.Directionality research to solving hot-fluid does not appear in the newspapers.
Summary of the invention
The present invention is based on the mechanism of magnetothermal effect power conversion, and a kind of magnetic cold-storing device that is used for magnetic refrigerator is provided, and this magnetic cold-storing device has the characteristics of efficient height, compact conformation, stable and good economy performance.
A kind of magnetic cold-storing device that is used for magnetic refrigerator provided by the invention; Be used for being arranged on a controllable magnetic field source, it is characterized in that, this device comprises magnetic regenerator and the heat-transferring assembly that constitutes heat transfer loop; This heat-transferring assembly comprises at least one thermal switch unit; Magnetic regenerator is the container that magnetic working medium is housed, and the part of thermal switch unit is arranged at magnetic regenerator inside and contacts with magnetic working medium, in the changes of magnetic field process, makes the magnetic working medium and the external world carry out thermotransport effectively.
Improvement as technique scheme; When including only a thermal switch unit in the said heat-transferring assembly; This thermal switch unit is used for the heat release or the endothermic process of magnetic regenerator, and the neither endothermic nor exothermic process of magnetic regenerator connects and composes flow cycle by magnetic regenerator and valve, pump, pipeline and heat exchanger and accomplishes.
As the further improvement of technique scheme, heat-transferring assembly comprises at least two thermal switch unit, and when being used for same direction of heat flow, each thermal switch unit keeps the uniformity of heat transfer direction.
Magnetothermal effect is electromagnetic energy and heat energy conversion; This is a power conversion based on the magnetic thermal coupling mechanism of complicacy; Carry out the power conversion between spin system and the thermal source rapidly and expeditiously, under changes of magnetic field and galvanomagnetic-effect effect, the thermotransport characteristic in the magnetic cold-storing device of the present invention; Both had transient state sequential property, had strict direction of heat flow property again.
In magnetic thermal coupling process, the magnetization of magnetic material/degaussing time (being the cycle of magnetic kind of refrigeration cycle) is long more, and resulting refrigerating capacity can be big more, but this can lose the efficient of magnetic refrigeration apparatus.The present invention adopts thermal switch to be controlled at the thermotransport in the magnetic regenerator under the changes of magnetic field; Not only can control the direction of heat transportation efficiently and stably; Be implemented in limited kind of refrigeration cycle transmission heat as much as possible in the time, reduce thermal loss greatly, the kind of refrigeration cycle process that makes whole device is more near reverse Carnot cycle; And can compact efficient in mechanism, thereby improve the conversion efficiency of whole magnetic refrigerator.
Employing the invention solves common cold-storage device because the dead volume influence of flowing is conducted heat and pipeline fluid return loss refrigerating capacity during valve switch, and avoids complex structure such as pipeline, valve and is difficult to problems such as microminiaturization, economy be low.It has also solved single use heat pipe and can't effectively utilize the magnetothermal effect of magnetic material as heat transfer unit (HTU) simultaneously, and sets up the mechanism of efficient magnetic refrigerator, and realization magnetic refrigerator thermal switch magnetic regenerator is utilized the purpose of MCE highly effective refrigeration.Its essence is that the actual efficiency of whole magnetic refrigerating system depends primarily on two aspects, the one, the electromagnetism of science transport with the coupling of thermotransport with change the mechanism, the 2nd, improving with optimizing of regenerator and thermotransport performance reaches the heat loss that as far as possible reduces transmission course.This magnetic cold-storing device has advantages such as efficient height, compact conformation, stable and good economy performance.
Description of drawings
Fig. 1 is the sketch map of principle of the present invention;
Fig. 2 wherein, (a) is the overall structure schematic diagram for using the magnetic regenerator apparatus structure sketch map of a plurality of thermal switch structures, (b) is top plan view;
Fig. 3 is the sketch map of embodiments of the invention 1;
Fig. 4 is the sketch map of embodiments of the invention 2;
A kind of thermal switch that Fig. 5 adopts for the present invention sketch map.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As depicted in figs. 1 and 2; Magnetic refrigerator thermal switch magnetic cold-storing device provided by the invention; Be arranged in the controllable magnetic field source, comprise magnetic regenerator and at least one thermal switch unit, accomplish in the changes of magnetic field process magnetic working medium in the magnetic regenerator and the external world and carry out thermotransport.Magnetic regenerator is the container that magnetic working medium is housed, and the part of thermal switch unit is arranged at magnetic regenerator inside and contacts with working medium.
Said magnetic working medium can be the magneto-caloric material of solid (like Metal Gd), liquid (like liquid magnetic Nano synthetic) or other form.Cold-storage working substance can be a magnetic working medium itself, also can be other heat-transfer working medium of combination.When magnetic working medium is solid, can be in magnetic regenerator the heat exchange medium of filling liquid state or gaseous state.
When this magnetic refrigerator thermal switch magnetic cold-storing device combined flow module such as pipeline, valve to use, the heat exchange medium of employing can be the fluid of liquid, gas or other form.The thermal switch unit can be that the heat of thermal diode, superconducting switch, magnetic thermal switch or other form transmits control device.When between the magnetic regenerator chamber and the mouth of pipe, net and seal being set, can prevent the leakage of magnetic working medium and cold-storage working substance.Heat insulating construction is set outside magnetic regenerator outer wall, thermal switch unit outer wall, pipeline outer wall and other assembly leaks heat loss to reduce.
When including only a thermal switch unit in the heat-transferring assembly, this thermal switch unit is used for the heat release or the endothermic process of magnetic regenerator, and the neither endothermic nor exothermic process of magnetic regenerator connects and composes flow cycle by magnetic regenerator and valve, pump, pipeline and heat exchanger and accomplishes.
When heat-transferring assembly comprised a plurality of thermal switch unit, the quantity that is positioned at the thermal switch unit at magnetic regenerator two ends can equate or not wait, and uses a plurality of thermal switch unit, the uniformity of the direction that need keep when being used for same direction of heat flow conducting heat.
The thermal switch unit comprises and sets up the augmentation of heat transfer assembly on it in magnetic refrigerator thermal switch magnetic cold-storing device, and the augmentation of heat transfer assembly can adopt structures such as fin.
One of embodiment of magnetic refrigerator thermal switch magnetic cold-storing device of the present invention is: adopt thermal diode as the thermal switch unit, and as shown in Figure 3.It is the periodical magnetic filed that places controllable magnetic field source 5 to provide by magnetic regenerator 3; The two ends up and down of magnetic regenerator 3 connect a thermal diode 4a, 4b respectively; Wherein the evaporator section of thermal diode 4a places magnetic regenerator 3 inside, and condensation segment is located at magnetic regenerator 3 tops and contacts with thermal source 7; The condensation segment of thermal diode 4b places magnetic regenerator 3 inside, and evaporator section is located at magnetic regenerator 3 bottoms and contacts with low-temperature receiver 6, and simultaneously, the adiabatic section outer wall of the outer wall of magnetic regenerator 3 and thermal diode 4 is equipped with heat insulating construction and reduces thermal loss.
The magnetic working medium 1 of this magnetic regenerator dress is Gd, is the graininess filler, and heat exchange medium 2 adopts the fluid such as the aqueous solution.The present invention also can use other magnetic material with magnetothermal effect and corresponding heat exchange medium.Magnetic regenerator 3 outer walls use stainless steel or other material, and magnetic regenerator 3 adopts welding or other connected mode with thermal diode 4.The pipe wall material of thermal diode 4 is used stainless steel, and working fluid is a liquefied ammonia in the pipe, also can select other pipe wall material and compatible working fluid for use.Outer wall is the fin structure of augmentation of heat transfer at the thermal diode two ends.Controllable magnetic field source 5 can be electromagnet, superconducting magnet or permanent magnet, and the relative motion through the magnetizing of magnet state type/demagnetization or magnet and magnetic regenerator 4 is that magnetic regenerator 4 provides periodic magnetic field.
Its operation principle does; Effect through controllable magnetic field source 5 adds magnetic field process, when the magnetic working medium 1 in the magnetic regenerator 4 is magnetized; Because magnetothermal effect; The temperature of magnetic working medium 1 raises heat is passed to heat exchange medium 2, makes magnetic regenerator 3 internal temperatures higher than thermal source 7 temperature, through thermal diode 4a heat is passed to thermal source 7; Removing magnetic field process; Magnetic working medium 1 temperature reduction in the magnetic regenerator 4 owing to degaussing; And, making magnetic regenerator 3 internal temperatures lower than low-temperature receiver 6 temperature to heat exchange medium 2 heat absorptions, heat is passed to magnetic regenerator 3 through thermal diode 4b from low-temperature receiver 6; The temperature of low-temperature receiver 6 reduces like this, has reached refrigeration.Repeat above-mentioned circulation and just can accomplish process of refrigerastion.
The present invention has realized the reverse thermodynamic cycle that constitutes based on the endothermic process of improving by magnetized exothermic process and degaussing; Utilize magnetic working medium changed by magnetic field excitation/demagnetization process magnetic entropy efficiently; Produce the temperature change and carry out exothermic/endothermic; The thermal switch of strict control heat transfer direction, and the heat transfer mechanism of high heat transfer efficient, realize efficient and compact conformation utilize the magnetothermal effect of magnetic working medium to freeze.
The embodiment two of magnetic refrigerator thermal switch magnetic regenerator of the present invention is as shown in Figure 4, and magnetic regenerator one end adopts the thermal diodic thermal switch, and the other end is taken over road, valve, pump and heat exchanger etc. and constituted flow cycle.The periodical magnetic filed that it places controllable magnetic field source 5 to provide by magnetic regenerator 3, magnetic regenerator 3 lower ends connect thermal diode 4, and wherein the condensation segment of thermal diode 4 is positioned at magnetic regenerator 3 inside, and its evaporator section is located at magnetic regenerator 3 bottoms and contacts with low-temperature receiver 6; Magnetic regenerator 3 upper ends connect pipeline 11, constitute a circulation loop with valve 10, pump 9 and heat exchanger 8, and wherein heat exchanger 8 is that regenerator is to the extraneous heat radiation of system.
Above-mentioned flow cycle can be full cut-off formula structure as shown in Figure 4, also can adopt hybrid connection.In hybrid connection, promptly heat exchange medium 2 flows into magnetic regenerator 3 by pipeline, behind heat exchange medium 2 and the magnetic working medium 1 direct contact heat-exchanging, flows out magnetic regenerator by corresponding pipeline again.
The adiabatic section outer wall of the outer wall of magnetic regenerator 3, thermal diode 4 and the outer wall of pipeline 11 are equipped with heat insulating construction and reduce the leakage heat loss.
The magnetic working medium 1 of this magnetic regenerator dress is Gd, is the graininess filler, and heat exchange medium 2 adopts the fluid such as the aqueous solution.The present invention also can use other magnetic material with magnetothermal effect and corresponding heat exchange medium, and heat exchange medium can be the medium of liquid, gas and other state.
Thermal diode two ends outer wall is the fin structure of augmentation of heat transfer.Controllable magnetic field source 5 can be electromagnet, superconducting magnet or permanent magnet, and the relative motion through the magnetizing of magnet state type/demagnetization or magnet and magnetic regenerator 4 is that magnetic regenerator 4 provides periodic magnetic field.
Operation principle does, through the effect in controllable magnetic field source 5, when adding magnetic field; When the magnetic working medium 1 in the magnetic regenerator 4 was magnetized, because magnetothermal effect, the temperature of magnetic working medium 1 raise heat is passed to heat exchange medium 2; Make magnetic regenerator 3 internal temperatures higher than thermal source 7 temperature; Open valve 10 simultaneously, the effect through pump 9 makes heat-transfer fluid flow to heat exchanger 8 by regenerator 3, and the heat in the regenerator 3 is passed to thermal source 7; Remove magnetic field then; While valve-off 10; Magnetic working medium 1 temperature reduction in the magnetic regenerator 4 owing to degaussing, and, make magnetic regenerator 3 internal temperatures lower than low-temperature receiver 6 temperature to heat exchange medium 2 heat absorptions; Heat is passed to magnetic regenerator 3 through thermal diode 4b from low-temperature receiver 6, and the temperature of low-temperature receiver 6 reduces like this.Repeat above-mentioned cyclic process and then realize the purpose of freezing.
The structure of a kind of thermal switch unit that illustrates apparatus of the present invention below and adopted, as shown in Figure 5.It is the closed metal pipe of an elongate hollow, and working fluid is equipped with in inside, and Fig. 5 thermal diode inside pipe wall is a light-pipe structure, the fin structure that its upper and lower side outer wall of while is an enhance heat transfer.In the heat pipe pipe, also wick structure can be set.
This thermotube wall forms with metal material processing such as stainless steel or copper, fluids such as the optional water of working media in the pipe, acetone, ammonia, liquid nitrogen.The temperature range that the selection of working fluid should be used according to heat pipe is stablized putting between the tube wall that also requires working fluid and heat pipe, capillary wick compatibility before this, has good heat endurance, high latent heat and heat conductivility, and lower viscosity.For guaranteeing high capillary force, the surface tension of working fluid should be enough high.Capillary wick has copper, nickel, stainless steel, titanium etc. to process usually, and belt tube is arranged, and porous media materials such as powder, silk screen, fibrofelt are also arranged.
The operation principle of thermal diode, be through working medium 2 at evaporator section 1 carburation by evaporation that is heated, the air accumulation after the evaporation is in the hollow tube of evaporation section, the condensation segment 3 to heat pipe flows simultaneously., gas just begins condensation, condensation segment 3 outside heat releases simultaneously when arriving the lower condensation segment of temperature.These condensed liquid flow back to evaporation section again because of capillarity or gravity effect, so circulate to make heat pass to condensation segment 3 from evaporator section 1.
When the evaporator section 1 residing temperature of thermal diode was higher than condensation segment 3 residing temperature, the thermal diode operate as normal was equivalent to the thermal switch closure; When evaporator section 1 residing temperature was lower than condensation segment 3 residing temperature, the gas of in-tube evaporation can not be condensed into liquid, and this moment, thermal diode can't transmit heat, and promptly thermal switch breaks off, and hot-fluid opens circuit.
When the heat pipe inside pipe wall is light-pipe structure, be to rely on the gravity effect to realize when condensate liquid returns evaporator section from condensation segment, then the evaporator section of gravity-type thermal diode must place the condensation segment below.
The present invention can adopt the thermal diode of other structure, and like the horizontal thermal diode, the present invention also can adopt the thermal switch of other form, as has the controlled superconductor thermal switch of hot-fluid break-make, electromagnetism thermal switch, gas thermal switch, mechanical thermal switch etc.
When the refrigeration work consumption of needs is big, can adopts jumbo magnetic regenerator, and increase the quantity of thermal switch; Also can in the controllable magnetic field source, be arranged side by side many cover magnetic refrigerator thermal switch magnetic cold-storing devices; The intensity in controllable magnetic field source can also be provided.
Those skilled in the art will readily understand; The above is merely preferred embodiment of the present invention; Not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. magnetic cold-storing device that is used for magnetic refrigerator; Be used for being arranged on a controllable magnetic field source, it is characterized in that, this device comprises magnetic regenerator and the heat-transferring assembly that constitutes heat transfer loop; This heat-transferring assembly comprises at least one thermal switch unit; Magnetic regenerator is the container that magnetic working medium is housed, and the part of thermal switch unit is arranged at magnetic regenerator inside and contacts with magnetic working medium, in the changes of magnetic field process, makes the magnetic working medium and the external world carry out thermotransport effectively.
2. the magnetic cold-storing device that is used for magnetic refrigerator according to claim 1; It is characterized in that; When including only a thermal switch unit in the said heat-transferring assembly; This thermal switch unit is used for the heat release or the endothermic process of magnetic regenerator, and the neither endothermic nor exothermic process of magnetic regenerator connects and composes flow cycle by magnetic regenerator and valve, pump, pipeline and heat exchanger and accomplishes.
3. the magnetic cold-storing device that is used for magnetic refrigerator according to claim 1 is characterized in that heat-transferring assembly comprises at least two thermal switch unit, and when being used for same direction of heat flow, each thermal switch unit keeps the uniformity of heat transfer direction.
4. according to claim 1, the 2 or 3 described magnetic cold-storing devices that are used for magnetic refrigerator, it is characterized in that said magnetic working medium is the magneto-caloric material of solid, liquid or other form.
5. the magnetic cold-storing device that is used for magnetic refrigerator according to claim 4 is characterized in that, when magnetic working medium is solid, and the heat exchange medium of filling liquid state or gaseous state in magnetic regenerator.
6. according to claim 1, the 2 or 3 described magnetic cold-storing devices that are used for magnetic refrigerator, it is characterized in that the thermal switch unit is that the heat of thermal diode, superconducting switch, magnetic thermal switch or other form transmits control device.
7. according to claim 1, the 2 or 3 described magnetic cold-storing devices that are used for magnetic refrigerator, it is characterized in that the thermal switch one or both ends are provided with the augmentation of heat transfer assembly, the augmentation of heat transfer assembly comprises fin structure.
8. according to claim 1, the 2 or 3 described magnetic cold-storing devices that are used for magnetic refrigerator, it is characterized in that, net and seal are set between the magnetic regenerator and the mouth of pipe, prevent the leakage of magnetic working medium and cold-storage working substance.
9. according to claim 1, the 2 or 3 described magnetic cold-storing devices that are used for magnetic refrigerator, it is characterized in that, heat insulating construction is set outside magnetic regenerator outer wall, thermal switch outer wall, pipeline outer wall and other assembly leaks heat loss to reduce.
10. the magnetic cold-storing device that is used for magnetic refrigerator according to claim 2; It is characterized in that; Said flow cycle is full-enclosed structure or hybrid combination, and in hybrid combination, the heat exchange medium in the flow cycle directly contacts with magnetic working medium in the magnetic regenerator.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105307457A (en) * | 2015-09-14 | 2016-02-03 | 联想(北京)有限公司 | Stirling-magnetocaloric united heat dissipation system and electronic device |
| CN105890222A (en) * | 2016-06-05 | 2016-08-24 | 山东商业职业技术学院 | Non-contact electromagnetic quick cold storage system based on magnetic rotation enhanced heat transfer |
| CN106369723A (en) * | 2016-11-10 | 2017-02-01 | 海南省蓝波新能源科技有限公司 | Air conditioner |
| CN107238229A (en) * | 2017-05-11 | 2017-10-10 | 上海卫星装备研究所 | A kind of monopole and multistage magnetic refrigeration apparatus based on gravity assisted heat pipe |
| CN110542153A (en) * | 2019-09-25 | 2019-12-06 | 珠海格力电器股份有限公司 | Heat dissipation device adopting magnetic working medium for heat dissipation, outdoor unit and air conditioning unit |
| CN112203367A (en) * | 2020-09-25 | 2021-01-08 | 中国科学院宁波材料技术与工程研究所 | Thermal switch and temperature control device with same |
| CN112629059A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Method for evaluating refrigerating capacity of room-temperature magnetic refrigerating material and heat exchange device |
| CN113446753A (en) * | 2021-06-25 | 2021-09-28 | 华南理工大学 | Room-temperature magnetic refrigeration device and refrigeration method of coupling gravity heat pipe |
| CN113921852A (en) * | 2021-09-22 | 2022-01-11 | 中国三峡新能源(集团)股份有限公司 | Fuel cell cold start system based on liquid magnetic heat flow and control method |
| CN114909817A (en) * | 2022-04-13 | 2022-08-16 | 西安交通大学 | Regenerative thermomagnetic-magnetocaloric coupling refrigeration system and method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105307457A (en) * | 2015-09-14 | 2016-02-03 | 联想(北京)有限公司 | Stirling-magnetocaloric united heat dissipation system and electronic device |
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| CN106369723A (en) * | 2016-11-10 | 2017-02-01 | 海南省蓝波新能源科技有限公司 | Air conditioner |
| CN107238229A (en) * | 2017-05-11 | 2017-10-10 | 上海卫星装备研究所 | A kind of monopole and multistage magnetic refrigeration apparatus based on gravity assisted heat pipe |
| CN110542153A (en) * | 2019-09-25 | 2019-12-06 | 珠海格力电器股份有限公司 | Heat dissipation device adopting magnetic working medium for heat dissipation, outdoor unit and air conditioning unit |
| CN112203367A (en) * | 2020-09-25 | 2021-01-08 | 中国科学院宁波材料技术与工程研究所 | Thermal switch and temperature control device with same |
| CN112629059A (en) * | 2020-12-31 | 2021-04-09 | 包头稀土研究院 | Method for evaluating refrigerating capacity of room-temperature magnetic refrigerating material and heat exchange device |
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Application publication date: 20121003 |