Double stator double rotor motor of solid rotor start-up and squirrel-cage rotor operation, and the start-up and operation method

Abstract

The solid rotor starts the double-stator double-rotor motor running on the squirrel-cage rotor, including the stator, rotor, end cover, transmission shaft, and bearing system. Its main technical feature is that there are two rotors, namely the squirrel-cage rotor and the solid rotor. Coaxially installed on the same transmission shaft, there are two stators, namely the main stator and the removable stator. The main stator and the squirrel-cage rotor correspond to form an independently running squirrel-cage rotor asynchronous motor, and the removable stator corresponds to the solid rotor. It constitutes a solid rotor asynchronous motor that operates independently, and a fan is installed on the transmission shaft. The present invention cleverly combines solid rotor and squirrel-cage rotor motors, which have different starting and running characteristics, into a coaxial double-stator double-rotor motor, which gives full play to their advantages respectively, and proposes and uses uninterrupted power switching technology, which truly solves the problem of The problem of "starting", "running" and "reliability" that has plagued the motor industry for a long time can not be achieved at the same time. The implementation method is simple and easy to promote.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a double-stator double-rotor motor with a new structure and a starting and running method thereof. Background technique [0002] At present, the largest and most widely used motor in the world is the squirrel-cage rotor asynchronous motor, which has the outstanding advantages of low manufacturing cost, high reliability and good running performance. But its starting performance is particularly unsatisfactory, the starting quality factor is very low, it is difficult to meet the needs of starting with load, it usually uses the method of increasing the motor capacity to achieve the purpose of starting with load, which has caused a serious phenomenon of "big horse and small car" , which not only increases the manufacturing cost of the motor, but also makes the motor run at low load for a long time, wasting a lot of electric energy, and the running performance becomes very p...

AI Technical Summary

Problems solved by technology

However, its operating performance such as efficiency and power factor is particularly unsatisfactory, which greatly limits its application, and is only used in some special occasions that require frequent starting and stopping and forward and reverse rotation.

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