The invention discloses a centrally-mounted motor of a power-assisted bicycle. According to the technical scheme, the centrally-mounted motor of the power-assisted bicycle is characterized by comprising a motor assembly, a torque detection device assembly, a transmission assembly, a controller, a chain ring assembly and a bottom bracket; the motor assembly comprises a motor stator, a motor rotor,a rotor shaft connected with the motor rotor and a gear connected with the rotor shaft; the torque detection device assembly comprises a pressure-strain type sensor, a slip ring, a speed Hall detection module and a center shaft which are connected with the controller; the transmission assembly comprises a two-stage transmission speed reduction structure and a transmission main gear, and a one-waybearing is arranged in the transmission main gear, so that the motor rotor does not rotate along with manual pedaling; and the chain ring assembly is fixed to the transmission main gear of the two-stage transmission speed reduction structure and connected with a rear wheel of the power-assisted bicycle through a chain. According to the provided scheme, the manual pedaling torque can be converted into voltage signals.

    本发明公开了一种助力自行车的中置电机。本发明的技术方案是:一种助力自行车的中置电机,其特征在于:包括电机总成、力矩检测装置总成、传动总成、控制器、齿盘组件以及五通管;所述电机总成包括电机定子、电机转子、与电机转子连接的转子轴及与转子轴连接的齿轮;所述力矩检测装置总成包括与控制器连接的压变式传感器、滑环、速度霍尔检测模块以及中轴;所述传动总成包括二级传动减速结构和传递大齿轮,传递大齿轮内设有单向轴承使得人力踩踏时电机转子不跟转;所述齿盘组件固定在二级传动减速结构的传递大齿轮上,通过链条与助力自行车的后轮连接。本发明提供的方案能够将人力蹬踏力矩转换成电压信号。


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    Title :

    Centrally-mounted motor of power-assisted bicycle


    Additional title:

    一种助力自行车的中置电机


    Contributors:
    JI BING (author) / FANG QIAN (author) / ZHANG JUN (author)

    Publication date :

    2020-12-22


    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



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