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Switched Reluctance Motor

A technology of switched reluctance motor and external stator, which is applied in the direction of electrical components, electromechanical devices, magnetic circuit static parts, etc., can solve the problems of motor power density decrease, motor volume increase, etc., achieve minimum value improvement and torque ripple reduction , the effect of increasing the power density

Active Publication Date: 2018-02-09
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of the end of the motor, there must be a large distance between the two stators, the volume of the motor increases, and the power density of the motor decreases

Method used

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Embodiment Construction

[0038] In order to make the technical solution of the present invention clearer, the switched reluctance motor of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and not to limit the present invention.

[0039] see Figure 1 to Figure 6 ,Such as figure 1 As shown, the switched reluctance motor of the present invention includes a stator and a rotor. Wherein, the stator includes an outer stator 10 and an inner stator 20, the outer stator 10 is fixed on the shell of the switched reluctance motor, the inner stator 20 is fixedly connected with the stationary shaft of the switched reluctance motor, and the stationary shaft of the switched reluctance motor is connected with the switch The casing of the reluctance motor is fixedly connected, so both the outer stator 10 and the inner stator 20 are stationary...

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Abstract

The invention provides a switched reluctance motor, which includes a stator and a rotor, the stator includes an outer stator and an inner stator, coils are wound around the teeth of the outer stator and the teeth of the inner stator, the outer The coils of the stator are independent from the coils of the inner stator, the rotor is arranged between the inner stator and the outer stator, and the rotor includes salient pole teeth of the inner layer and salient pole teeth of the outer layer; the outer layer The salient pole teeth interact with the teeth of the outer stator, and the inner salient pole teeth interact with the teeth of the inner stator. The switched reluctance motor of the present invention improves the minimum value of the motor torque through the independent connection and independent control of the coils on the outer stator and the coils on the inner stator, thereby reducing the motor's rotational speed without sacrificing the efficiency of the motor. Torque ripple is reduced by more than 30%. At the same time, the flexibility of motor control is enhanced, and the power density of the motor is improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a switched reluctance motor. Background technique [0002] Due to its simple structure, good motor reliability, excellent starting performance, and high overall efficiency, switched reluctance motors have been extensively studied. However, the large torque ripple of the switched reluctance motor and the large radial magnetic pull force cause the periodic change amplitude of the radial and tangential force of the motor to be too large, which generates an exciting force and acts on the yoke of the stator, causing it to vibrate and act Generate sound waves and noise in the nearby air. [0003] The existing methods to reduce torque ripple mainly include the following: [0004] 1. In terms of structure, the variable air gap structure is adopted, so that when the stator teeth and rotor teeth are approaching, the air gap changes from large to small, and there is a transitional stage, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/04H02K1/14H02K1/24
Inventor 童童陈东锁陈彬肖勇
Owner GREE ELECTRIC APPLIANCES INC
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