Motor magnetic tile and motor with the motor magnetic tile

Abstract

The invention relates to the technical field of motor structures, and discloses motor magnetic tiles and a motor provided with the motor magnetic tiles. Each motor magnetic tile comprises a tile body, wherein the outer side wall of the tile body comprises a middle arc side wall, a first side wall and a second side wall; the first side wall and the second side wall are located on the two sides of the middle arc side wall respectively and are arranged symmetrically; the thickness of the portion, corresponding to the first side wall and the second side wall in the directions of the two sides of the tile body, of the tile body gradually decreases. The motor comprises a rotor and the multiple motor magnetic tiles, wherein the motor magnetic tiles are arranged in the circumferential direction of the rotor. According to the motor magnetic tiles and the motor provided with the motor magnetic tiles, sine of air gap flux density is achieved, dominant odd harmonics are reduced, and therefore counter potential waveforms with lower harmonic quantity are obtained, and on the premise of ensuring the ideal harmonic content, the average air gap is reduced effectively, the performance of the motor is improved effectively, vibration of the motor is small, and noise of the motor is low.

Description

technical field [0001] The invention belongs to the technical field of motor structure, and in particular relates to a motor magnet tile and a motor with the motor magnet tile. Background technique [0002] In the current motors, the magnetic tile of the motor is in a single arc shape and has an eccentric tile structure. In order to ensure the amplitude of the back EMF, the degree of eccentricity is limited, and there are problems of high back EMF harmonics, motor vibration and poor noise; prior art Among them, when the eccentricity of the magnetic tile of the motor increases, although the electromagnetic noise can be effectively improved, it will cause the back EMF to drop, the motor cannot reach the original output, and the performance of the motor is poor. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the above-mentioned prior art, and provide a motor magnet tile and a motor with the motor magnet tile, which ...

AI Technical Summary

Problems solved by technology

[0002] In current motors, the magnetic tile of the motor is in a single arc shape and has an eccentric magnetic tile structure. In order to ensure the amplitude of the back EMF, the degree of eccentricity is limited, and there are problems of high back EMF harmonics, poor vibration and noise of the motor; prior art In this case, when the eccentricity of the magnetic tile of the motor increases, although the electromagnetic noise can be effectively improved, it will cause a decrease in the back EMF, the motor cannot achieve the original output, and the performance of the motor is poor.

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