Permanent magnet, permanent magnet motor and compressor

A technology of permanent magnet motors and permanent magnets, which is applied in the fields of permanent magnet motors, compressors, and permanent magnets. It can solve problems such as low manufacturing efficiency and complicated rotor assembly, and achieve the effects of saving material costs, improving cost performance, and improving performance.
CN105515225AInactive Publication Date: 2016-04-20GUANGDONG MEIZHI COMPRESSOR +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG MEIZHI COMPRESSOR
Publication Date
2016-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a permanent magnet, a permanent magnet motor and a compressor. The permanent magnet has the maximum length L1 and the maximum width W1. The working area of the permanent magnet is S, wherein the working area S, the maximum length L1 and the maximum width W1 meet the relational expression that S is smaller than L1*W1. According to the permanent magnet, the performance of the motor can be improved, the material cost can be saved, the rotor assembling difficulty of a rotor will not be increased, and therefore the cost performance of the motor is improved.
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Description

technical field

[0001] The invention relates to the field of refrigeration equipment, in particular to a permanent magnet, a permanent magnet motor and a compressor. Background technique

[0002] In the compressor industry, the stator, rotor and permanent magnets of permanent magnet motors are generally arranged equal in axial length. Due to end effects such as end magnetic flux leakage, the utilization rate of the magnetic flux at the end of the motor is low, so the cost performance of the motor is low. As one of the solutions, setting the axial length of the permanent magnet to be smaller than the axial length of the rotor core can improve the utilization rate of the magnetic flux at the end to a certain extent and improve the cost performance of the motor. However, this technology will bring manufacturing problems such as complicated rotor assembly and low manufacturing efficiency. Contents of the invention

[0003] The present invention aims to solve one of the techn...

Claims

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