The invention provides a middle motor of an electric auxiliary bicycle, which is characterized in that a gear mechanism is arranged in a shell, one part of an eccentric shaft is fixedly connected with an electric driving device, and one end of the eccentric shaft is provided with two eccentric parts used for being coupled with two opposite planetary gears of the gear mechanism; a crankshaft penetrates through the axial interior of the eccentric shaft; the crankshaft and the gear mechanism are respectively coupled with a chain plate output shaft through a clutch; a deformation bearing support is fixedly connected to the shell and is coupled to the chain plate output shaft through a bearing. Therefore, the driving acting force of the electric driving device and the driving acting force of the crankshaft can be transmitted to the chain plate output shaft respectively, and the deformation bearing support is combined with a strain gauge to form a torsion detector for measuring the torque on the chain plate output shaft.
本发明提供一种电动辅助自行车的中置电机,系一齿轮机构安装在一壳体内,一偏心轴的一部分固接于一电驱动装置,且该偏心轴的一端具有二偏心部用以耦接该齿轮机构的二个相面对的二行星齿轮;一曲柄轴穿过该作偏心轴的轴向内部;该曲柄轴与该齿轮机构各自借一离合器耦接一链盘输出轴;一变形轴承支架固接在该壳体且借一轴承耦接在该链盘输出轴。借此该电驱动装置与该曲柄轴的驱动作用力可分别传至该链盘输出轴,以及该变形轴承支架结合一应变规可形成扭力侦测器用以测该链盘输出轴上的扭矩。
Middle motor structure of electric auxiliary bicycle
电动辅助自行车的中置电机结构
2024-09-03
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Middle motor transmission system, middle motor and electric bicycle
European Patent Office | 2023
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