The invention relates to an integrated coaxial type electric drive axle system. The system comprises a power battery, an inverter, a drive motor, a coaxial type speed reducer and a differential mechanism which are connected in sequence, the inverter is fixed to the drive motor and shares a cooling system with the drive motor, and the output shaft of the drive motor is a hollow shaft and is arranged on the drive shaft in a sleeving mode. The coaxial speed reducer comprises an intermediate shaft large gear and a differential mechanism input gear which are coaxial, the intermediate shaft large gear is connected with the output shaft of the driving motor through a gear, the differential mechanism input gear serves as power input of the differential mechanism, and the output end of the differential mechanism is connected with the driving shaft. The driving motor, the inverter, the coaxial speed reducer and the like are highly integrated together, so that power input and power output are onthe same straight line, application and arrangement of the whole vehicle are facilitated, and the problems that an existing driving system is low in integration level and disordered in wiring are solved; and the system has the advantages of high integration degree, small size, light weight, good heat dissipation performance, wide application vehicle types and the like.

    本发明涉及一种集成同轴式电驱动桥系统,包括依次连接的动力电池、逆变器、驱动电机、同轴式减速器和差速器,逆变器固定在驱动电机上并与驱动电机共用冷却系统,驱动电机的输出轴为空心轴并套在驱动轴上,同轴式减速器包括同轴的中间轴大齿轮和差速器输入齿轮,中间轴大齿轮与驱动电机的输出轴通过齿轮连接,差速器输入齿轮作为差速器的动力输入,差速器的输出端连接驱动轴。与现有技术相比,本发明通过将驱动电机、逆变器、同轴式减速器等高度集成在一起,实现动力输入与输出在同一直线上,方便整车应用布置,解决现有驱动系统集成度低且接线混乱的问题,具有集成程度高、体积小、重量轻、散热性能良好、应用车型广泛等优点。


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    Title :

    Integrated coaxial electric drive axle system


    Additional title:

    一种集成同轴式电驱动桥系统


    Contributors:
    LU WEI (author) / ZOU ZHANJIANG (author) / LIN ZHANQIAO (author) / ZHOU KANG (author) / HUANG GUIDONG (author)

    Publication date :

    2021-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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