Permanent magnet motor, compressor and air conditioner

A technology of permanent magnet motors and permanent magnets, applied in magnetic circuits, electric components, electrical components, etc., can solve the problems of power density and efficiency limitations of permanent magnet motors, achieve miniaturization design, increase power density, and improve refrigeration/ The effect of heating efficiency

Pending Publication Date: 2020-02-07
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in related technologies, the improvement of power density and efficiency of permanent magnet motors is limited

Method used

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  • Permanent magnet motor, compressor and air conditioner
  • Permanent magnet motor, compressor and air conditioner
  • Permanent magnet motor, compressor and air conditioner

Examples

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Embodiment Construction

[0037] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0038] Refer below Figure 1-Figure 6 A permanent magnet motor 100 according to an embodiment of the first aspect of the present invention will be described.

[0039] Such as Figure 1-Figure 6 As shown, the permanent magnet motor 100 according to the embodiment of the present invention includes a stator 1 and a rotor 2 .

[0040] The stator 1 includes a stator core 11 and a stator winding 12, the stator core 11 includes a plurality of stator teeth 111, the plurality of stator teeth 111 are arranged along the circumferential direction ...

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Abstract

The invention discloses a permanent magnet motor, a compressor and an air conditioner. The permanent magnet motor comprises a stator and a rotor, wherein the stator comprises a stator iron core and astator winding, the stator iron core comprises multiple stator teeth which are arranged in the circumferential direction of the stator iron core, a stator slot is defined between every two adjacent stator teeth, and the stator winding is wound on the stator teeth; the rotor and the stator are arranged in a manner of internal and external partition, the rotor comprises a rotor iron core and a permanent magnet embedded on the rotor iron core, the maximum distance between a peripheral outline of the cross section of the rotor and the center of the cross section of the rotor is D1, the axial length of the rotor iron core is L, and the rated power of the permanent magnet motor is P; and the D1, L and P satisfy a relation that the D1/L is not less than 1.7, and P/(D12*L) is not less than 8.5, wherein the unit of the P is W, and the unit of each of the D1 and L is cm. The permanent magnet motor disclosed by the invention has higher power density and operating efficiency, the realization of the miniaturization design is convenient, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a permanent magnet motor, a compressor and an air conditioner. Background technique [0002] In the compressor industry, rare earth permanent magnet motors have the highest power density and highest efficiency. However, in the related art, the improvement of the power density and efficiency of the permanent magnet motor is limited. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a permanent magnet motor, which has high power density and operating efficiency, and at the same time facilitates the realization of miniaturized design and reduces costs. [0004] Another object of the invention is to propose a compressor for a permanent magnet motor. [0005] Another object of the present invention is to provide an air con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/14
CPCH02K1/146H02K1/2706H02K2213/03
Inventor 乔正忠毛临书邱小华徐飞王玉龙
Owner GUANGDONG MEIZHI COMPRESSOR
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