Magnetic pole structure of a permanent magnet motor

Abstract

The invention discloses a magnetic pole structure of a permanent magnet motor. The magnetic pole structure of the permanent magnet motor includes a magnetic pole body, and the magnetic pole body includes a pole box, steel magnets and blocking plates. The pole box is axially provided with through holes corresponding to cross-sectional shapes of the steel magnets; the steel magnets are embedded in the through holes; the blocking plates are arranged at both end ports of the through holes, and are abutted against the end surfaces of the steel magnets; and the magnetic pole body forms a one-piece structure through an overall paint dipping curing mode. According to the above magnetic pole structure, the through holes are arranged in the magnetic pole box; the steel magnets are embedded in the through holes; the blocking plates are arranged at the both ends of the through holes to realize blocking; and the one-piece structure is formed by an overall air taking curing mode, so that the magnetic pole structure has good sealing performance and accordingly the problem that the magnetic pole structure of the permanent magnet motor is easily corroded or peeled off is solved.

Description

technical field [0001] The invention relates to the technical field of permanent magnet motors, in particular to a magnetic pole structure of a permanent magnet motor. Background technique [0002] At present, the permanent magnet motor has the advantages of high efficiency, simple structure, and convenient control, and its application fields are becoming more and more extensive. The main magnetic field of the permanent magnet motor is provided by the magnet, so the fixing and protection of the magnet becomes one of the key factors affecting the performance and life of the permanent magnet motor. [0003] With the rapid development of science and technology, the application occasions of permanent magnet motors are becoming more and more extensive, and the use environments of permanent magnet motors are also diverse. If the protection of the magnetic steel is poor, it is very easy to cause the magnetic steel to rust and fall off, which seriously affects the service life of t...

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of science and technology, the application occasions of permanent magnet motors are becoming more and more extensive, and the use environments of permanent magnet motors are also diverse. If the protection of the magnetic steel is poor, it is very easy to cause the magnetic steel to rust and fall off, which seriously affects the service life of the permanent magnet motor. If it is used in an inner rotor motor, it is also prone to failures such as the magnetic steel being thrown out

[0004] Due to the wide range of applications, more and more attention has been paid to the fixing method and protection of magnetic steel, so many magnetic pole structures have appeared, such as: adding epoxy layer on the surface of magnetic steel. Steel Corrosion Risk

[0005] To sum up, how to solve the problem that the magnetic pole structure of the permanent magnet motor is easy to rust or fall off has become a technical problem to be solved urgently by those skilled in the art

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