Shade pole type single-phase alternating current asynchronous motor with low vibration torque

Abstract

The invention discloses a shade pole type single-phase alternating current asynchronous motor with low vibration torque, and particularly relates to a shade pole type composite single-phase alternating current asynchronous motor. The shade pole type single-phase alternating current asynchronous motor with low vibration torque comprises a rear end cover, a rear bearing, a machine seat, a 1# stator core, a 1# rotor core, a 1# stator winding, a 2# stator winding, a 2# stator core, a 2# rotor core, a 2# stator winding, a front end cover, a front bearing, a rotation shaft, a 1# rotor winding, a 2# rotor winding and a phase-shift capacitor. The shade pole type composite single-phase alternating current asynchronous motor enables the vibration torque generated by two sets of shade pole type motors to right differ by an electrical angle of 180 degrees, and achieves the purpose of restraining the vibration torque through mutual compensation of positive and negative components of the vibration torque. If two generated vibration torque amplitude values are the same, the vibration torque is completely restrained. Besides, due to the fact that a branch circuit and a home circuit of a 2# motor with a series capacitor are capacitive, the power factor of the formed composite motor is higher than the power factors of the two original motors.

Description

technical field [0001] The invention relates to a single-phase AC shaded-pole asynchronous motor, in particular to a shaded-pole single-phase AC asynchronous motor with low vibration torque. 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 shaded pole single-phase AC asynchronous motor with low vibration torque in view of the deficiencies in the prior a...

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Problems solved by technology

There is no good way to reduce the vibration torque

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