Single phase asynchronous electromotor

Abstract

The invention discloses a single phase asynchronous electromotor, which comprises a stator and a rotor, wherein the stator is composed of a stator yoke part and a rotor tooth part; the rotor is arranged in the stator tooth part; a plurality of teeth uniformly arranged in the stator tooth part along the peripheral direction correspond to grooves arranged in an inner ring part of the yoke part one by one; when the stator winding passes through alternating current, a pulsating magnetic motive force is generated by a single phase alternating current winding through the single phase alternating current; the pulsating magnetic motive force can be decomposed into a rotating magnetic motive force sum with two equal amplitude values and reverse rotating speeds, so that a magnetic field sum of a positive rotation and a negative rotation is established in an air gap; a rotor conductor is cut by two rotating magnetic fields; an induced electromotive force and induction current are generated in the rotor conductor; the current and the magnetic field mutually act to generate a positive electromagnetic torque and a negative electromagnetic torque; the positive electromagnetic torque aims to enable the rotor to positively rotate, and the negative electromagnetic torque aims to enable the rotor to negatively rotate; and the two torques are overlaid to be a resultant torque for pushing the electromotor to rotate.

Description

Technical field [0001] The invention relates to a single-phase asynchronous motor. Background technique [0002] The current single-phase asynchronous motors can be divided into shaded-pole and split-phase asynchronous motors according to the starting principle. However, compared with the shaded-pole single-phase asynchronous motors, the manufacturing process of split-phase single-phase asynchronous motors is troublesome and the price is relatively high. Expensive, and the disadvantages such as inconvenient use and maintenance, make the use of split-phase single-phase asynchronous motors are slowly replaced by shaded-pole single-phase asynchronous motors, but in the existing technology, shaded-pole single-phase asynchronous motors It is a complete whole. In the manufacturing process, there are complicated manufacturing processes, low work efficiency, and low yield, especially the low utilization rate of raw materials such as enameled copper wires. Summary of the invention [0003...

AI Technical Summary

Problems solved by technology

[0002] The current single-phase asynchronous motors can be divided into two categories: shaded pole type and split-phase type according to the starting principle. Expensive, and inconvenient to use and maintain, the use of split-phase single-phase asynchronous motors is being gradually replaced by shaded pole single-phase asynchronous motors, but in the existing technology, shaded pole single-phase asynchronous motors It is a complete whole. In the manufacturing process, there are complex manufacturing processes, low work efficiency, and low yield, especially the low utilization rate of raw materials such as enamelled copper wires.

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