The invention relates to the technical field of electric auxiliary bicycles, in particular to a middle driving device and an electric auxiliary bicycle. The middle driving device comprises a mounting shell and a motor, the mounting shell comprises a shell body, a first end cover and a second end cover, a mounting through groove is formed in the shell body, and the first end cover and the second end cover are arranged at the two ends of the shell body respectively; the motor comprises a motor shaft, a stator, a rotor and a first heat conduction piece. The first end of the motor shaft penetrates through the mounting through groove and extends out of the mounting through groove. The stator sleeves the motor shaft through the rotor, and the stator is arranged in the mounting through groove; the first heat conduction piece is filled between the inner wall of the installation through groove and the stator and covers the two end faces of the stator. The second end cover is installed at the end, away from the first end of the motor shaft, of the installation through groove. The heat dissipation performance of the motor can be improved, the vibration of the motor during working is reduced, and the service life of the motor is prolonged.

    本发明涉及电动辅助自行车技术领域,尤其涉及一种中置驱动装置及电动辅助自行车。中置驱动装置包括安装壳和电机,安装壳包括壳体、第一端盖和第二端盖,壳体上开设有安装通槽,第一端盖和第二端盖分别设置在壳体的两端;电机包括电机轴、定子、转子和第一导热件,电机轴的第一端贯穿安装通槽并延伸至安装通槽外;定子通过转子套设在电机轴上,且定子设置在安装通槽内;第一导热件填充在安装通槽的内壁和定子之间并覆盖至定子的两端面;第二端盖安装在安装通槽的远离电机轴第一端的一端上。本发明能提高电机的散热性能,降低电机工作时的振动,延长电机的使用寿命。


    Access

    Download


    Export, share and cite



    Title :

    Middle driving device and electric auxiliary bicycle


    Additional title:

    一种中置驱动装置及电动辅助自行车


    Contributors:

    Publication date :

    2022-03-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



    Middle driving device and electric auxiliary bicycle

    ZENG QIFANG | European Patent Office | 2020

    Free access

    Middle driving device of electric power-assisted bicycle

    WU SHANGSHENG / ZENG JIARONG / YANG QI | European Patent Office | 2021

    Free access

    ELECTRIC AUXILIARY DRIVING MECHANISM FOR BICYCLE OR MOTORCYCLE

    ZHU WEI / CHEN WANCHUN / CHUANG HAO-LIN | European Patent Office | 2021

    Free access

    Electric driving system for auxiliary hub of bicycle

    WANG KAISHENG | European Patent Office | 2021

    Free access

    Electric auxiliary driving mechanism for bicycle or motorcycle

    ZHU WEI / CHEN WANCHUN / ZHUANG HAOLIN | European Patent Office | 2020

    Free access