A power module of an electric power-assisted bicycle comprises a pedal spindle, a shell, a motor, a speed reducer, a fluted disc output shaft, a pedal spindle first bidirectional bearing and an encoder assembly. An interval part of the shell divides the inner space into a motor containing part and a speed reducer containing part in the axial direction. The pedal shaft is contained in the shell and penetrates through the end cover of the shell in the axial direction. The extending part of the input shaft of the speed reducer extends towards the end cover in the axial direction and is connected with the supporting part of the end cover through a rear bearing of the input shaft so as to stabilize the rotation axis. The supporting part, the input shaft rear bearing and the extending part are sequentially sleeved from inside to outside in the radial direction, axial configuration of the encoder assembly is facilitated, and the use space is increased.

    电动助力自行车的动力模块,包括脚踏轴、壳体、电机、减速机、齿盘出轴、脚踏轴第一双向轴承与编码器组件。壳体的间隔部沿轴向将内部空间分为电机容置部及减速机容置部。脚踏轴容置于壳体并沿轴向贯穿壳体的端盖。减速机输入轴的延伸部,沿轴向朝向端盖延伸,且通过输入轴后轴承连接端盖的支撑部,以稳定旋转轴线。支撑部、输入轴后轴承与延伸部是沿径向由内向外依序套设,利于编码器组件轴向配置、增加使用空间。


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    Title :

    Power module of electric power-assisted bicycle


    Additional title:

    电动助力自行车的动力模块


    Contributors:
    ZHONG QIWEN (author) / CAO MINGLI (author) / HUANG JIANPING (author) / CHEN JUNLIN (author)

    Publication date :

    2025-01-17


    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



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