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Reluctance type alternating pole permanent magnet motor

A technology of permanent magnet motors and alternating poles, applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuit shape/style/structure, magnetic circuit, etc., can solve the problem of low electromagnetic torque, q-axis inductance and d The shaft inductance difference is small, the reluctance torque is not fully utilized, etc., to achieve the effect of increasing the difference and improving the electromagnetic torque

Pending Publication Date: 2018-02-02
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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AI Technical Summary

Problems solved by technology

[0003] The magnetic field lines under a pair of poles of the existing alternating pole permanent magnet motor only pass through one permanent magnet, the d-axis magnetic circuit reluctance of the alternating pole permanent magnet motor is small, and the d-axis inductance is relatively large, which will cause the q-axis inductance and The difference of d-axis inductance is small, and there are disadvantages of insufficient utilization of reluctance torque and low electromagnetic torque

Method used

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  • Reluctance type alternating pole permanent magnet motor
  • Reluctance type alternating pole permanent magnet motor
  • Reluctance type alternating pole permanent magnet motor

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embo...

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Abstract

The invention provides a reluctance type alternating pole permanent magnet motor, which comprises a rotor, wherein the rotor is provided with at least two permanent magnet poles which take an axis ofthe rotor as a center and are uniformly distributed along the circumferential direction of the rotor, each permanent magnet pole comprises inner-layer magnetic slots and outer-layer magnetic slots which are sequentially arranged and mutually separated along the radial direction of the rotor; and each inner-layer magnetic slot is internally provided with an inner-layer permanent magnet matched withthe inner-layer magnetic slot, and each outer-layer magnetic slot is internally provided with an outer-layer permanent magnet matched with the outer-layer magnetic slot. The reluctance type alternating pole permanent magnet motor has the advantages that the difference between q-axis inductance and d-axis inductance can be improved, thus the reluctance torque is enabled to be fully utilized, and the electromagnetic torque is enabled to be improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a reluctance type alternating pole permanent magnet motor. Background technique [0002] With the continuous advancement of science and technology, the application of alternating pole permanent magnet motors is becoming more and more extensive, which can significantly reduce the amount of permanent magnets used, thereby greatly reducing the cost of the motor. [0003] The magnetic field lines under a pair of poles of the existing alternating pole permanent magnet motor only pass through one permanent magnet, the d-axis magnetic circuit reluctance of the alternating pole permanent magnet motor is small, and the d-axis inductance is relatively large, which will cause the q-axis inductance and The difference of d-axis inductance is small, and there are disadvantages of insufficient utilization of reluctance torque and low electromagnetic torque. Contents of the invention [0004] ...

Claims

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Application Information

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IPC IPC(8): H02K21/14H02K1/27
CPCH02K1/2766H02K21/14H02K2213/03
Inventor 李权锋陈彬胡余生孙文娇
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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