Self-starting synchronous reluctance motor and rotor thereof

A synchronous reluctance motor and self-starting technology, which is applied to synchronous machines, asynchronous induction motors, electrical components, etc., can solve the problems of high price and limited application range of motors, reduce magnetic permeability, increase saliency ratio, and improve efficiency effect

Active Publication Date: 2013-07-17
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, rare earth is a non-renewable resource and its price is expensive, so the application range of this type of motor is limited

Method used

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  • Self-starting synchronous reluctance motor and rotor thereof
  • Self-starting synchronous reluctance motor and rotor thereof
  • Self-starting synchronous reluctance motor and rotor thereof

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Embodiment Construction

[0027] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0028] Such as figure 1 As shown, according to the first embodiment of the present invention, a self-starting synchronous reluctance motor rotor includes: an iron core 10, on which a magnetic flux blocking groove 11 and a squirrel cage groove 12 are arranged, are distributed along the outer circumference of the iron core 10 In the cross section of the rotor, the center line of the cross section of the squirrel cage groove 12 deviates from the center of the iron core 10. Generally, the direction parallel to the magnetic flux blocking groove 11 is taken as the D axis, and the direction perpendicular to the magnetic flux blocking groove 11 is taken as the Q axis. The rotor is symmetrical about the D and Q axes, so that the center line of the cross section of the squirrel cage groove is deviated from The center of the iron core 10 increases t...

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PUM

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Abstract

The invention provides a self-starting synchronous reluctance motor and a rotor thereof. The rotor of the self-starting synchronous reluctance motor comprises an iron core and squirrel-cage grooves, wherein magnetic flux separation grooves are arranged on the iron core, and the squirrel-cage slots are distributed along the periphery of the iron core. In the cross section of the rotor, the center line of the cross sections of the squirrel-cage slots deviates from the center circle of the iron core. The self-starting synchronous reluctance motor comprises a stator and the rotor of the self-starting synchronous reluctance motor. According to the self-starting synchronous reluctance motor and the rotor, the center line of the cross sections of the squirrel-cage grooves is led to deviate from the center circle of the iron core by adjusting the angle of the squirrel-cage grooves arranged on the rotor, magnetic permeability in the direction of the D axis is improved, magnetic permeability in the direction of the Q axis is reduced, inductance Ld in the direction of the D axis is increased and inductance Lq in the direction of the Q axis is reduced, namely salient pole ratio (Ld / Lq) of the motor is improved, and further motor efficiency is improved.

Description

Technical field [0001] The invention relates to the field of motors, and in particular to a self-starting synchronous reluctance motor and its rotor. Background technique [0002] The self-starting permanent magnet synchronous motor is a kind of permanent magnets placed on the inner side of the induction motor rotor to retain the squirrel cage of the induction motor. The motor mainly uses the permanent magnet torque. It mainly improves the performance of the motor by improving the performance of the permanent magnet. The common practice is to build in rare earth permanent magnets. However, rare earth is a non-renewable resource and its price is expensive, so the application range of this kind of motor is limited. In order to save rare metal resources, reduce environmental burdens, and reduce costs, combining the advantages of synchronous reluctance motors, self-starting permanent magnet synchronous motors, and induction motors, the development of self-starting synchronous reluct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/46H02K17/16
Inventor 谢芳张小波陈飞龙
Owner GREE ELECTRIC APPLIANCES INC
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