An Alternating Pole Permanent Magnet Vernier Motor Based on T-shaped Permanent Magnets

Abstract

The invention discloses an alternating pole permanent magnet vernier motor based on T-type permanent magnets. The alternating pole permanent magnet vernier motor comprises an output shaft, an outer rotor and an inner stator, wherein the outer rotor is fixedly connected with the output shaft, and the inner stator is rotatably connected with the output shaft; the outer rotor is composed of the T-type permanent magnets and a rotor core, the inner stator is further provided with an armature winding, and the outer end of the armature winding is further provided with a Halbach array permanent magnet; the outer rotor and the inner stator are arranged in a space formed by a front end cover and a rear end cover, the inner stator is fixedly connected with the rear end cover, the front end cover is rotatably connected with the output shaft, and ventilation holes are formed in the front end cover and the rear end cover. The alternating pole permanent magnet vernier motor has the advantages of lownoise, high utilization rate of permanent magnets, low manufacturing cost, stable operation and high efficiency; and the alternating pole permanent magnet vernier motor is improved, can be widely applied to various low-speed direct-driving occasions, and solves the problem that the application range of the alternating permanent magnet motor is narrow and the limitation is large.

Description

technical field [0001] The invention relates to the technical field of permanent magnet vernier motors, in particular to an alternating pole permanent magnet vernier motor based on T-shaped permanent magnets. Background technique [0002] With the continuous deepening of research on high-performance permanent magnet materials, permanent magnet motors have developed rapidly in recent years. Alternating pole permanent magnet motors are most commonly used in the field of magnetic levitation to reduce the coupling effect between the motor torque and levitation performance. The amount of permanent magnets is reduced, saving costs and simplifying the process. However, the utilization rate of permanent magnets in ordinary alternating pole permanent magnet motors is not high, and the application range is narrow and the limitations are relatively large. In recent years, some scholars have proposed alternating pole permanent magnet vernier motors to improve the utilization rate of t...

AI Technical Summary

Problems solved by technology

However, this kind of motor uses the claw pole stator teeth as the modulating pole, and part of the magnetic circuit will be closed in advance. Although the efficiency of the motor is improved to a certain extent, it cannot substantially improve the utilization rate of the permanent magnet.

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