Split stator of permanent magnet motor and manufacturing method of split stator

Abstract

The invention relates to a split stator of a permanent magnet motor. The split stator of the permanent magnet motor comprises a split stator core and a coil, wherein the coil is wound in the split stator core. The split stator of the permanent magnet motor further comprises fastening rings. The split stator core consists of at least three pieces through assembling, and each piece thereon is provided with complete teeth, a complete groove and half grooves; the stator core is tightly hooped through the fastening rings; the split stator of the permanent magnet motor is arranged to be of the shape of a cylinder of which the diameter of a base circle is smaller than the length. The split stator of the permanent magnet motor can solve the problems that the coil winding in the manufacturing process of the traditional stator core is difficult, the end portion of a winding is long, the manufacturing cost is high, the amount of heat produced by a coil is great, and the motor efficiency is low and it is not beneficial to long-time reliable operation, and can be widely applied to permanent magnet brushless direct-current motors or permanent magnet synchronous motors; the manufacturing and assembling process of the split stator of the permanent magnet motor is simple, the structure is compact, the tooth groove torque is small, and the end portion of the winding is short; the resistance is small, the heat loss is small, the efficiency is high, the maintenance is convenient to perform, and the operation is reliable.

Description

technical field [0001] The invention belongs to the technical field of motors, and relates to a permanent magnet motor split stator, in particular to a permanent magnet motor split stator and its Manufacturing method. Background technique [0002] The permanent magnet motor is an electromagnetic device that uses the magnetic field generated by the permanent magnet as the medium to realize electromechanical energy conversion according to the law of electromagnetic induction. Compared with the traditional electric excitation motor, the permanent magnet motor has simple structure, high reliability and small size. , light weight, high efficiency, low temperature rise, etc., are widely used in various fields of national production; with the development of high-performance permanent magnet materials, permanent magnet motors gradually replace traditional electric excitation motors with their superior performance. It is widely used in industry, aerospace, electric power and other f...

AI Technical Summary

Problems solved by technology

However, in environments with extremely strict requirements on space dimensions, such as aerospace, petroleum industry and other fields, there are strict requirements on radial and axial dimensions, and permanent magnet motors can only use slender structures; under such requirements, traditional The stator core manufacturing process is difficult to roll off the production line, the winding ends are long, the manufacturing cost is high, the heat generated by the coil is large, and the motor efficiency is low, which is not conducive to long-term reliable operation

Images