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Method for restraining vibration torques of shaded pole type single phase alternating current asynchronous motors

An asynchronous motor, single-phase AC technology, applied in asynchronous induction motors, electrical components, electromechanical devices, etc., can solve problems such as the reduction of vibration torque, and achieve the effect of suppressing vibration torque

Active Publication Date: 2014-04-30
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

There is no good way to reduce the vibration torque

Method used

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  • Method for restraining vibration torques of shaded pole type single phase alternating current asynchronous motors
  • Method for restraining vibration torques of shaded pole type single phase alternating current asynchronous motors
  • Method for restraining vibration torques of shaded pole type single phase alternating current asynchronous motors

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Embodiment Construction

[0011] The implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as figure 1 , figure 2 As shown, a method for suppressing the vibration torque of a shaded-pole single-phase AC asynchronous motor, this suppression method: two single-phase AC shaded-pole asynchronous motors with the same number of pole pairs, coaxial connection, and co-rotating in the same direction generate The two vibration torques with a phase difference of 180° electric angle are mutually compensated by the two vibration torques with a phase difference of 180° electric angle, and the purpose of suppressing the vibration torque is achieved by positive and negative mutual compensation at the same time.

[0013] The method for generating two vibrating torques with a phase difference of 180° electric angle is as follows: two single-phase AC asynchronous motors drive the same load, one of which is directly connected to the single-ph...

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Abstract

The invention discloses a method for restraining vibration torques of shaded pole type single phase alternating current asynchronous motors. According to the restraining method, two shaded pole type single phase alternating current asynchronous motors which are identical in number of pole-pairs, are connected coaxially and rotate in the same direction generate two vibration torques the phase positions of which differ by a 180-degree electrical angle respectively, and through the mutual compensation of the two vibration torques the phase positions of which differ by the 180-degree electrical angle, the purpose of restraining the vibration torques is realized due to the positive and negative compensation at the same time. According to the method, due to the fact that the phase positions of the vibration torques generated by the two motors just differ by the 180-degree electrical angle, the purpose of restraining the vibration torques is realized due to the positive and negative compensation. The amplitudes of the two generated vibration torques are identical, and then the vibration torques are completely restrained.

Description

technical field [0001] The invention relates to a method for suppressing the vibration torque of a single-phase AC asynchronous motor, in particular to a method for suppressing the vibration torque of a shaded pole type single-phase AC asynchronous motor. Background technique [0002] The single-phase AC shaded pole asynchronous motor is one of the most used motors due to its simple structure, but because the generation of the rotating magnetic field is based on the setting of the shaded pole winding, the generated rotating magnetic field has serious ellipticity. There are severe vibration torques in operation. For the reduction of vibration torque, there is no good method so far. In the actual use of the motor, the vibration torque is equivalent to an excitation source, which will cause vibration and noise to the entire driven system. Contents of the invention [0003] The object of the present invention is to propose a method for suppressing the vibration torque of a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/36
Inventor 冯浩赵浩丁立军
Owner HANGZHOU DIANZI UNIV
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