Bearing integrated rotary voltage transformation stator and rotor structure

Abstract

The invention relates to a bearing integrated rotary voltage transformation stator and rotor structure. The structure comprises a rotary transformer stator and a rotary transformer rotor, and the rotary transformer rotor is positioned inside the rotary transformer stator; the rotary transformer rotor is provided with a rotating shaft hole; a rotary transformer stator side winding is arranged on the inner periphery of the rotary transformer stator; a rotary transformer rotor side winding is arranged at the periphery of the rotary transformer rotor; rolling pieces are evenly distributed betweenthe rotary transformer stator and the rotary transformer rotor, the positions of the rolling pieces and the rotary transformer stator are relatively unchanged, the rolling pieces can roll and rotate in situ when the rotary transformer rotor rotates, and the sum of the number of pole pairs of the rotary transformer stator side winding and the number of pole pairs of the rotary transformer rotor side winding is equal to the number of the rolling pieces. The rolling pieces are made of a magnetic conductive material, the magnetic conductivity of the rolling pieces is far larger than that of air, most of a magnetic field is coupled through the rolling pieces, waveforms are more sinusoidal, and the rolling pieces are of an integrated contact structure and are reliable in structure, long in service life and high in working efficiency.

Description

technical field [0001] The invention relates to a stator-rotor structure, in particular to a bearing-integrated rotary transformer stator-rotor structure. Background technique [0002] The development and utilization of energy is the source of power for economic development and social productivity. Electric energy has been widely used as a secondary energy source after the second industrial revolution. In today's society, automobiles have become a necessity in human daily life, so people must Automobiles are undergoing a technological revolution of energy saving and emission reduction, and new energy vehicles have emerged in this revolution. Under the background of global energy shortage, environmental deterioration and abnormal climate, new energy vehicles can meet human needs for vehicle mobility on the one hand; on the other hand, compared with traditional power system vehicles, new energy vehicles are economical and environmentally and the value of sustainable developme...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of adding additional devices or additional windings, complicating the electromagnetic relationship, and reducing the power density of the motor in the existing brushless motor excitation scheme, the present invention proposes a bearing-integrated rotary transformer stator-rotor structure to realize electric energy transmission. This excites the motor field winding

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