Magnetic pole spaced arrangement combined stator

Abstract

The present invention relates to a motor stator, in particular, a magnetic pole spaced arrangement combined stator. The magnetic pole spaced arrangement combined stator includes a stator component anda stator insert component; the stator magnetic poles of which the serial numbers are odd numbers, of the stator component and the stator insert component and the stator magnetic poles of which the serial numbers are even numbers, of the stator component and the stator insert component, are arranged alternately; in the winding machining process of a concentrated winding, a large machining operation space is provided between two adjacent stator magnetic poles, and therefore, the slot opening width of stator core wire slots can be reduced under a condition that the winding machining of the concentrated winding is not affected, or closed slots can be adopted as the stator core wire slots, and therefore, a cogging torque can be lowered, a brushless direct-current motor or permanent magnetic synchronous motor can use integer-slot windings, the selection range of the number of slots and the number of poles in the design of the brushless direct-current motor or the permanent magnet synchronous motor can be extended, and the performance of the motor can be improved. The combined stator can realize pole variation and speed variation when applied to an asynchronous motor, so that the asynchronous motor can be facilitated to decrease an additional torque generated by a tooth harmonic magnetic field, and therefore, the efficiency of the motor can be improved.

Description

technical field [0001] The present invention relates to a magnetic pole spaced arrangement combined stator, which relates to a motor stator, in particular to a kind of concentrated winding coils which are sequentially wound on the iron core pole body and the magnetic pole insert of the stator core, and make several A motor stator in which a magnetic pole insert is inserted into the mortise between two adjacent iron core pole bodies of the stator core. Background technique [0002] The motor stator winding coil is divided into two structural types: distributed winding and concentrated winding. Most asynchronous motors use distributed windings, while brushless DC motors (BLDC) and permanent magnet synchronous motors (PMSM) use centralized windings. The processing technology of distributed winding is complicated, and the processing technology of centralized winding is simple. The interphase insulation strength of centralized winding is higher than that of distributed winding....

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of large cogging torque when ordinary brushless DC motors or ordinary permanent magnet synchronous motors adopt integer slot windings, and the shortcomings that asynchronous motors cannot realize pole-changing and speed-changing if centralized windings are used, and provide an effective Conducive to centralized winding processing, small cogging torque when applied to brushless DC motors or permanent magnet synchronous motors, small additional torque generated by tooth harmonic magnetic field when applied to asynchronous motors, and the use of centralized windings can realize Combination Stator with Magnetic Pole Interval Arrangement for Variable-pole and Variable-speed Asynchronous Motor

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