The invention discloses a middle motor assembly and an electric power-assisted bicycle, and relates to the technical field of electric bicycles. The centrally-mounted motor assembly is used for being installed at a five-way pipe of a bicycle and comprises a shell fixedly connected with the five-way pipe and a center shaft rotationally connected with the five-way pipe, a stator is arranged in the shell, a rotor is rotationally arranged on the center shaft and located on an inner ring of the stator, a gear ring is further arranged in the shell, and the gear ring is located on the inner ring of the stator. And the planetary gear is matched with the gear ring, is connected with the rotor through an eccentric shaft structure, and is connected with a fluted disc through an output frame. According to the centrally-mounted motor assembly structure, the overall size can be reduced, the large speed reducing and torque increasing effect can be achieved, and the use reliability is improved.

    本申请公开了一种中置电机总成及电助力自行车,涉及电动自行车技术领域。该中置电机总成用于安装于自行车的五通管处,包括与所述五通管固定连接的壳体,以及与所述五通管转动连接的中轴,所述壳体内设置有定子,所述中轴上转动设置有转子,所述转子位于所述定子的内圈,所述壳体内还设置有齿圈,以及与所述齿圈配合的行星齿轮,所述行星齿轮通过偏心轴结构与所述转子连接,且所述行星齿轮通过输出架与齿盘连接。该中置电机总成结构能够减小整体的体积并实现较大的减速增扭效果,并提升使用时的可靠性。


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    Title :

    Middle motor assembly and electric power-assisted bicycle


    Additional title:

    一种中置电机总成及电助力自行车


    Contributors:
    SU HONGTAO (author) / SHEN ZHE (author) / ZHOU XIAOWEN (author) / JIANG CAIFENG (author)

    Publication date :

    2022-04-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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