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Magnetic refrigeration device with transmission power and method and use

A magnetic refrigeration and power technology, applied in the direction of refrigeration and liquefaction, refrigerators, machine operation methods, etc., can solve the problems of complex devices, motor heating, high cost, etc., and achieve improved stability, extended service life, and high refrigeration efficiency. Effect

Active Publication Date: 2020-03-06
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN104167272A discloses a sintered NdFeB magnet containing cerium. The magnet uses a large amount of cheap cerium to replace the more expensive praseodymium neodymium alloy, which reduces the cost, but the magnet still contains neodymium, etc., and the cost is still relatively high. And this technology does not think of using existing magnets to provide magnetic fields for magnetic refrigeration devices
[0009] CN103066727A discloses a new type of motor cooling and eddy current suppression structure. The device reduces the temperature of the motor and the eddy current of the winding by fixing a cooling plate on the surface of the motor winding, but the device needs to cut grooves on the cooling plate and divide it into individual area, complex
[0010] Therefore, it is necessary to develop a magnetic refrigeration device that simultaneously solves the problems of magnetic refrigeration technology cost, motor heating and eddy current

Method used

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  • Magnetic refrigeration device with transmission power and method and use
  • Magnetic refrigeration device with transmission power and method and use
  • Magnetic refrigeration device with transmission power and method and use

Examples

Experimental program
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Embodiment 1

[0080] This embodiment provides a magnetic refrigeration device with its own transmission power, and the device includes: a motor and a packed bed fixed on the edge or surface of the stator silicon steel sheet of the motor;

[0081] Such as figure 1 As shown, the stator silicon steel sheet 1 of the motor is evenly distributed with stator windings 2 along the circumferential direction, gaps are arranged between the stator windings 2, and the inner circle of the stator silicon steel sheet 1 is provided with a cavity for fixing the packed bed 4; The packed beds 4 in the motor are arranged in pairs along the central axis of the stator silicon steel sheet 1; the packed beds 4 are arranged circumferentially along the inner circumference of the stator silicon steel sheet 1; the motor also includes a A rotor (not shown in the figure) used for radial inner space rotation to generate an alternating magnetic field;

[0082] Such as figure 2 with image 3 As shown, the packed bed 4 is...

Embodiment 2

[0086] This embodiment provides a magnetic refrigeration device with its own transmission power. In addition to filling the "packed bed with six components with Curie point temperatures of 280K, 284K, 292K, 296K, 302K and 306K sequentially from the low temperature end to the high temperature end, the device A kind of lamellar LaFeSiH series alloy material" was replaced with "three kinds of granular Gd series alloy materials with Curie point temperatures of 274K, 284K and 294K were filled in the packed bed sequentially from the low temperature end to the high temperature end", and the rest were the same as in Example 1. same.

Embodiment 3

[0088] This embodiment provides a magnetic refrigeration device with its own transmission power. In addition to the "packed bed" disclosed in CN106016819B, the device figure 1 The shown rectangular structure of cold storage bed 1" is replaced by "packed bed is disclosed in CN109442796A figure 1 Except the "serpentine structure" shown, all the others are the same as in Embodiment 1.

[0089] The magnetic refrigeration device with its own transmission power provided in Examples 1-3 can be applied in the fields of household appliances, automobiles or batteries, and is used to cool refrigerators and reduce the temperature of the interior of automobiles or the surface of batteries. The magnetic refrigeration method of the magnetic refrigeration device with its own transmission power comprises the following steps:

[0090] (1) The rotation of the motor generates an alternating magnetic field, such as Figure 4 As shown, the lines of induction of the alternating magnetic field are ...

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Abstract

The invention provides a magnetic refrigeration device with transmission power. The magnetic refrigeration device is combined with a motor, and a magnetic field in the motor is directly provided to amagnetic refrigerant, so that the magnetic field cost of the current room-temperature magnetic refrigeration machine is reduced greatly, and the cooling capacity can be provided to an external deviceneeding to be cooled while the motor can be cooled. The magnetic refrigeration method with transmission power using the device realizes the excitation and demagnetization of a magnetic refrigeration material through an alternating magnetic field generated by the motor, therefore the refrigeration cycle is realized, and the magnetic field cost of the magnetic refrigeration machine can be effectively reduced. Meanwhile, the magnetic refrigeration method can cool the motor with high power and high precision well and has high practical application value.

Description

technical field [0001] The invention relates to the technical field of magnetic refrigeration, in particular to a magnetic refrigeration device with its own transmission power, a method and an application. Background technique [0002] As the disadvantages of traditional vapor compression refrigeration technology in terms of environmental unfriendliness and heat transfer efficiency are becoming more and more obvious, the research and development of new refrigeration technology (non-vapor compression refrigeration) is becoming more and more urgent. Magnetic refrigeration technology is one of the new refrigeration technologies with the most promising development prospects, especially its advantages in environmental friendliness and high efficiency. Compared with traditional vapor compression refrigeration, the refrigeration efficiency of magnetic refrigeration can reach Carnot The cycle efficiency is 40% to 50%, which is about 30% higher than the traditional compression refrig...

Claims

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Application Information

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IPC IPC(8): F25B21/00
CPCF25B21/00F25B2321/0023Y02B30/00
Inventor 王占洲王国光蒋易晟石程
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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