Rotor of rotary motor, permanent magnetic motor, compressor and air-conditioning system

A technology for rotating electrical machines and rotors, applied in the field of refrigeration equipment, can solve the problems of increasing the cost of the motor, increasing the difficulty of manufacturing and assembly, etc.

Active Publication Date: 2015-08-12
GUANGDONG MEIZHI COMPRESSOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to achieve the same effect as the "inline" rotor, it is necessary to increase the level of the magnet with a large product of coercive force and magnetization direction thickness, which will lead to an increase in the cost of the motor
[0007] In addition, in the above-mentioned patents, the cross-sections of the two permanent magnets with different coercivity and magnetization direction thickness are not common rectangles, and the permanent magnets are respectively embedded in separate magnet slots, which increases the difficulty of manufacturing and assembly

Method used

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  • Rotor of rotary motor, permanent magnetic motor, compressor and air-conditioning system
  • Rotor of rotary motor, permanent magnetic motor, compressor and air-conditioning system
  • Rotor of rotary motor, permanent magnetic motor, compressor and air-conditioning system

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Embodiment Construction

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0049] The rotor 100 of the rotating electric machine according to the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0050] like Figure 1 to Figure 4 As shown, the rotor 100 of the rotating electrical machine according to the embodiment of the present application includes a body 10, on which a plurality of magnetic poles 20 are arranged at intervals along its circumferential direction, and the plurality of magnetic poles 20 are rotationally symmetrical with...

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Abstract

The invention discloses a rotor of a rotary motor, a permanent magnetic motor, a compressor and an air-conditioning system. The rotor of the rotary motor comprises a body, the body is provided with multiple magnetic poles arranged to be spaced along a circumferential direction, the multiple magnetic poles are rotationally symmetrical relative to the rotation center of the body, each magnetic pole comprises a first permanent magnet and a second permanent magnet, and the coercive force of each first permanent magnet is more than two times that of each first permanent magnet. According to the rotor of the rotary motor provided by one embodiment of the invention, the counterelectromotive force coefficient of the motor can be flexibly adjusted according to the need of the operation speed of the rotor, the motor always runs at a high-efficiency state, and at the same time, the rotating speed scope of a conventional motor can also be enlarged.

Description

technical field [0001] The invention relates to the technical field of refrigerating equipment, and more specifically, to a rotor of a rotating electric machine, a permanent magnet motor having the same, a compressor and an air-conditioning system. Background technique [0002] At present, in the high-speed operation range and high-efficiency permanent magnet motor, in order to improve the speed expansion range and efficiency of the motor, the rotor with a built-in permanent magnet structure is generally selected, and each magnetic pole has a single or multiple permanent magnet slots. Embed permanent magnets arranged radially or tangentially, and by setting the number and shape of the magnetic isolation slots between the poles reasonably, or by adjusting the shape of the outer edge of the rotor, it is ensured that the motor has high efficiency while having relatively high efficiency. Low cost, and good noise and vibration characteristics. [0003] In recent years, with the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K21/14
Inventor 于明湖杨泾涛
Owner GUANGDONG MEIZHI COMPRESSOR
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