Moving-magnetic-type linear motor used for stirling cryocooler

A linear motor and moving magnet technology, applied in the direction of electromechanical devices, electrical components, etc., can solve the problems of small volume and specific thrust, high mass of the mover, and low reliability, etc., to reduce the quality of the mover and the specific thrust Increased thrust and improved reliability

Active Publication Date: 2014-04-30
CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the first two motors, this kind of motor has compact structure, small size, large power and high efficiency, but the moving magnet linear motor also has the problems of large mover mass, working medium pollution, low reliability, low efficiency and small volume. Problems such as the inability to take into account the specific thrust at the same time

Method used

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  • Moving-magnetic-type linear motor used for stirling cryocooler
  • Moving-magnetic-type linear motor used for stirling cryocooler
  • Moving-magnetic-type linear motor used for stirling cryocooler

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing:

[0026] Such as figure 1 , figure 2 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 A moving magnet linear motor for a Stirling refrigerator is shown, which includes a casing 1, a mover is arranged inside the casing 1, an inner magnetic pole 2 is arranged inside the mover, an outer magnetic pole assembly is arranged outside the mover, and the mover The first and second diaphragm springs 3 and 4 are respectively provided at both ends of the rotor. The first diaphragm spring 3 is connected with the mover through the first screw 51, and the second diaphragm spring 4 is connected with the housing 1 through the second screw 52. The outer magnetic pole assembly includes an outer magnetic pole 61 and an enameled wire coil assembly embedded in the outer magnetic pole 61. The enameled wire coil assembly includes an enameled wire coil 62, a bobbin 63 and an insulatin...

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PUM

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Abstract

The invention relates to a moving-magnetic-type linear motor used for a stirling cryocooler. An outer magnetic pole is of a split structure and is formed by splicing two half round magnetic poles, the outer magnetic pole is provided with an inner lead hole and an outer lead hole, the outer circumference of the outer magnetic pole is provided with a fixing hole, the inner circumference of the outer magnetic pole is provided with a notch groove for reducing loss of eddy currents, the inside of the outer magnetic pole is provided with a wiring groove for holding enameled wire coil assemblies, and the inner magnetic pole is attached to the outer diameter of a cylinder in an adhesive mode. The outer magnetic pole is formed by splicing the two half round magnetic poles and is easy to install and fix; meanwhile, due to the fact that the inner lead hole and the outer lead hole of the outer magnetic pole are matched with a wire outlet hole in a coil framework, motor wire leading is greatly facilitated, the outer circumference is provided with the fixing hole which can be used for firm positioning of the outer magnetic pole and weight reducing, the notch groove formed in the inner circumference can reduce the loss of the eddy currents, the inner magnetic pole is directly attached to the outer diameter of the cylinder in an adhesive mode, the mass of a motor is reduced, and accordingly the specific thrust of the motor is increased, and efficiency is improved.

Description

technical field [0001] The invention relates to a Stirling refrigerator, in particular to a moving magnet linear motor for a Stirling refrigerator. Background technique [0002] With the rapid development of infrared detection technology, high-temperature superconducting technology, life science technology, aviation and aerospace technology, the demand for small cryogenic refrigerators continues to increase, especially the requirements for small size, light weight, high efficiency and reliability of refrigerators Higher and higher. Compared with the reciprocating piston compression motor driven by the traditional rotary motor, the linear compressor can obtain higher efficiency and longer life, and at the same time has the advantages of compactness, light weight and high efficiency. In many applications, the performance of linear compressors largely depends on the performance of linear motors, so the demand for high-efficiency linear motor technology is increasingly urgent. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/02H02K33/18
Inventor 高瑶洪庆郑珍珍范仙红王中朝高荣虎洪磊陆永达杨坤王波郑昱鑫
Owner CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
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