The invention provides an automatic speed change middle motor, and relates to the technical field of middle motors. The middle motor comprises an automatic transmission and a motor, and the motor provides power for the automatic transmission; the automatic transmission comprises a variable-speed shaft and an input sleeve, wherein the two ends of the variable-speed shaft are fixed, and the side wall of the variable-speed shaft is provided with a ratchet piece with opening elasticity; the input sleeve is driven by the motor to rotate around the variable-speed shaft; and a gear shifting assembly driven by centrifugal force is arranged between the input sleeve and the ratchet pieces, and the gear shifting assembly controls opening and closing of the ratchet pieces to achieve gear shifting and speed changing of the automatic transmission. According to the automatic transmission, the gear shifting assembly controls opening and closing of the ratchet pieces to enable the automatic transmission to shift gears and change speeds, automatic gear shifting and speed changing of the middle motor are achieved, a speed changing system does not need to be additionally carried, and the electric bicycle is easy and convenient to assemble.

    本发明提供了一种自动变速的中置电机,涉及中置电机技术领域。中置电机包括:自动变速器和电机,电机为自动变速器提供动力;自动变速器包括:变速轴和输入套筒;变速轴的两端固定,变速轴的侧壁设置有具备张开弹力的棘片;输入套筒在电机的驱动下绕变速轴旋转;输入套筒与棘片之间设置有通过离心力驱动的换挡组件,换挡组件控制棘片的开闭实现自动变速器的换挡变速。本发明中,换挡组件控制棘片的开闭使得自动变速器换挡变速,实现了中置电机的自动换挡变速,无需另行搭载变速系统,使得电动自行车组装简单便捷。


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    Title :

    Middle motor capable of automatically changing speed


    Additional title:

    自动变速的中置电机


    Contributors:
    CHEN BINBIN (author) / YE XUEQIANG (author) / LIU ZHIQIANG (author)

    Publication date :

    2021-12-10


    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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