Asynchronous motor capable of reducing end ring thickness and increasing starting performance

Abstract

The invention relates to an asynchronous motor capable of reducing end ring thickness and increasing starting performance. The asynchronous motor is characterized in that the thickness of an end ring at one end of a rotor mouse cage is reduced, a mouse cage rotor with two unsymmetrical end rings is formed, air vents are formed in the inner side of a rotor iron core, and a fan is mounted at the end with the reduced end ring thickness. Due to the fact that the thickness of the mouse cage end ring reduced, the overall internal resistance of the mouse cage is increased, the induction currents of the rotor are reduced, the starting currents of the motor are reduced, the voltage in a starting process is increased indirectly, and the motor can be fast started under a power supply condition not so good.

Description

technical field [0001] The invention relates to an asynchronous motor which improves the starting performance by reducing the thickness of one end ring of the rotor. Background technique [0002] General squirrel-cage rotor asynchronous motors design the rotor squirrel-cage according to the design standards. Since the maximum torque and starting torque of the motor must be taken into account at the same time, some necessary electromagnetic parameters have to be sacrificed, and there is a contradiction between one and the other, especially in some Remote rural areas with low power grid quality often cause difficulties in starting motors. Contents of the invention [0003] The purpose of the present invention is to provide a motor suitable for use in remote rural areas and capable of quick start when the power supply quality is not high. [0004] The technical solution for realizing the present invention is: design the rotor squirrel cage according to the standard, reduce t...

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