The invention discloses a driving motor, an electric driving system and an automobile. The driving motor comprises a motor shell, a motor rotating shaft and a motor bearing; the motor rotating shaft is arranged in the motor shell; the motor bearing sleeves the motor rotating shaft and is connected with the motor shell; the driving motor further comprises a conductive structure; the conductive structure is connected with the motor rotating shaft and the motor shell, and the conductive performance of the conductive structure is higher than that of the motor bearing. The conductive structure connected with the motor rotating shaft and the motor shell is arranged on the driving motor, and the conductive performance of the conductive structure is higher than that of the motor bearing, so that the shaft voltage of the motor rotating shaft is mainly transmitted to the motor shell through the conductive structure, and the shaft voltage transmitted to the motor shell through the motor bearing is reduced; and the problem that the motor performance and the service life of the driving motor are influenced by the electric corrosion of the motor bearing is solved.
本发明公开一种驱动电机、电驱动系统和汽车。该驱动电机包括电机壳体、电机转轴和电机轴承;电机转轴设置在电机壳体内;电机轴承套设在电机转轴上并与电机壳体相连;驱动电机还包括导电结构;导电结构与电机转轴和电机壳体相连,导电结构的导电性能高于电机轴承的导电性能。该驱动电机上设置与电机转轴和电机壳体相连的导电结构,且导电结构的导电性能高于电机轴承的导电性能,使得电机转轴的轴电压主要通过导电结构传递到电机壳体上,减少通过电机轴承传导到电机壳体的轴电压,进而解决电机轴承电腐蚀而影响驱动电机的电机性能和使用寿命的问题。
Driving motor, electric driving system and automobile
驱动电机、电驱动系统和汽车
2022-10-28
Patent
Electronic Resource
Chinese
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