Motor and sine stator

Abstract

The invention relates to a single phase or three phases including an alternating current synchronous motor stator, an alternating current asynchronous motor stator and the like, in particular to a motor and a sine stator. A plurality of teeth 5 and a plurality of teeth 4 are circumferentially arranged at intervals, the width of bodies of the teeth 5 is larger than that of bodies of the teeth 4 by two or more times, the motor sine stator is formed by arranging the teeth 5 serving as the main parts and the left and right teeth 4 serving as the auxiliary parts, three-tooth pole cambered surface air gaps are distributed according to the sine law, but the total cross section of an iron core is kept unchangeable, the polar distance becomes short, the end of a stator coil becomes short, the resistance of the coil is small, the loss is reduced, motor output and efficiency are increased, wire rods are saved, and wire inserting and connecting are easy to conduct in a labor saving mode. Thus, the effect of five harmonics, seven harmonics and other harmonic magnetic potentials on the motor is further reduced, the performance and the torque of the motor are improved, and the motor sine stator has good energy saving and emission reducing effects.

Description

technical field [0001] The technology relates to the field of AC motors, especially the stators of AC synchronous motors and AC asynchronous motors. Background technique [0002] In the current AC single-phase motors, the stators of single-phase AC synchronous motors and single-phase AC asynchronous motors are involved. The motor stators have the same entity, and the rotors include wound type, squirrel cage type, permanent magnet type, etc. There are equal slots and teeth respectively distributed in the stator core circle of the motor, and two-phase symmetrical windings are placed in the slots. Angular two-phase winding, when energized, one of the phases generates a two-phase rotating magnetic field on the stator core through a capacitor to drive the rotor to rotate. [0003] In the current three-phase AC motors, involving three-phase AC synchronous motors, three-phase AC asynchronous motors, etc., the motor stator structure has the same entity, and the rotor includes wound...

AI Technical Summary

Problems solved by technology

Although a certain amount of harmonic magnetic potential is eliminated when the above-mentioned corresponding distributed winding is used, it also brings more slot teeth, increased tooth harmonics, complicated winding process, longer coil ends, and increased magnetic flux leakage. And the influence of the increase of resistance and reactance on the decrease of motor efficiency, power and torque

However, micro motors are often difficult to operate when implementing distributed winding technology solutions.

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