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Magnetization method and magnetization component of permanent magnet motor

A magnetization method and technology of permanent magnet motor, which are applied in the direction of magnetic circuit rotating parts, magnetic circuit static parts, magnetic circuit shape/style/structure, etc. The effect of avoiding safety hazards, simple assembly and low power supply capacity

Active Publication Date: 2012-11-07
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a permanent magnet motor magnetization method, which solves the problem that the permanent magnet of the permanent magnet motor is difficult to assemble, and the permanent magnet motor needs to be completely disassembled before it can be magnetized again after the permanent magnet of the permanent magnet motor is demagnetized

Method used

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  • Magnetization method and magnetization component of permanent magnet motor
  • Magnetization method and magnetization component of permanent magnet motor
  • Magnetization method and magnetization component of permanent magnet motor

Examples

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no. 1 example

[0037] The first embodiment concerns the fabrication and composition of the magnetizing assembly.

[0038] The magnetizing assembly mainly includes two parts: an unmagnetized permanent magnet and a coil, wherein the unmagnetized permanent magnet is processed into a desired shape by an unmagnetized permanent magnet block, and Fig. 5 (a) shows that the magnetizing assembly 141, 142 has been installed on the Situation on the permanent magnet motor rotor 170; Fig. 5 (b) has shown a kind of method that the non-magnetized permanent magnet 150 and the magnetized coil 160 are assembled into the magnetized assembly, and its method is that the coil 160 is directly set to the non-magnetized permanent magnet. on the magnet 150.

[0039] Fig. 5 (c) shows that the magnetizing assembly 142 is made of an unmagnetized permanent magnet 150 and a coil 160, wherein the cuboid unmagnetized permanent magnet 150 is bonded by 6 unmagnetized permanent magnet blocks 151 to 156, and the coil 160 is Acc...

no. 2 example

[0041] Figure 6 Taking the permanent magnet motor with the permanent magnet on the inner rotor as an example, when the permanent magnet is located on the internal moving parts of the motor in the present invention, a method for installing and magnetizing the permanent magnet motor is described. The installation and magnetizing method is first Install the magnetizing components 201 to 206 into the corresponding slots of the permanent magnet motor rotor 210 without components installed, and assemble the complete rotor 220, then assemble the permanent magnet motor stator 230 and the rotor 220, and use the support 250 to support the rotor 220, and then the magnetizing coils of the magnetizing components 201 to 206 are connected to the magnetizing power supply 240 after being connected in series, the power supply is discharged, and the magnetizing coils generate a magnetizing magnetic field to realize the magnetization of unmagnetized permanent magnets into permanent magnets. Fina...

no. 3 example

[0043] Figure 7 Taking the permanent magnet motor with the permanent magnet on the outer rotor as an example, when the permanent magnet is located on the external moving parts of the motor in the present invention, a method for installing and magnetizing the permanent magnet motor is described. The installation and magnetizing method is first Install each magnetizing assembly 300 to 309 into the corresponding slot of the permanent magnet motor outer rotor 310 without assembly, assemble to obtain a complete outer rotor 320, and then assemble the end cover 340, the permanent magnet motor stator 330 and the outer rotor 320 together , so as to complete the assembly of the entire motor 350, and then connect the magnetizing coils of the magnetizing components 300 to 309 in series to the magnetizing power supply 360, the power supply is discharged, and the magnetizing coils generate a magnetizing magnetic field to realize the magnetization of the unmagnetized permanent magnet for pe...

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Abstract

The invention discloses a magnetization method of a permanent magnet motor, which comprises the following steps of: firstly winding a magnetization coil on the surface of an unmagnetized permanent magnet, then placing the unmagnetized permanent magnet where the magnetization coil is wound in a motor rotor or stator, and then assembling the motor rotor or stator of the permanent magnet motor, charging the magnetization coil after assembling, wherein the direction of the magnetic field generated by the coil is the same with the magnetization direction of the unmagnetized permanent magnet, and the unmagnetized permanent magnet is magnetized to a permanent magnet to realize magnetization purpose of the permanent magnet motor. The invention further provides a magnetization component for carrying out the magnetization method. The magnetization method and magnetization component of a permanent magnet motor provided by the invention have the advantages that the problem of difficult assembly of a permanent magnet motor is solved, the re-magnetization purpose of a permanent magnet unbuilt can be realized conveniently, the cost for assembling and maintaining a permanent magnet motor is reduced, and the capacity and volume of the power supply to be magnetized are reduced.

Description

technical field [0001] The invention relates to the field of permanent magnet motors, in particular to a method for magnetizing a permanent magnet motor and a magnetizing component for realizing the method Background technique [0002] Compared with the traditional electric excitation motor, the permanent magnet motor has the characteristics of simple structure, reliable operation, low loss and high efficiency. The permanent magnet system of a permanent magnet motor usually includes multiple pairs of magnetic poles, each magnetic pole is formed by superimposing the magnetic field generated by one or more independent permanent magnets, and the permanent magnet is composed of a single or multiple permanent magnet blocks. The magnetization directions of different permanent magnets in the same magnetic pole can be the same or different, but the permanent magnet blocks forming the same permanent magnet have the same or nearly the same magnetization directions. For example figur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/03H02K1/17H02K1/27
Inventor 李亮周中玉
Owner HUAZHONG UNIV OF SCI & TECH
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