The invention discloses a middle driving device of an electric power-assisted bicycle. The middle driving device comprises a motor, a harmonic reducer, a torque sensor, a clutch, a sealing cover, a flange plate and a middle shaft, wherein the motor is a direct-current brushless motor, a motor shaft is connected with a cam shaft of the harmonic reducer, and a rigid wheel of the harmonic reducer isan output end; a rigid wheel positioning base is connected with the clutch, and the clutch is an overrunning clutch and is connected with the middle shaft to realize one-way transmission; the middle shaft is connected with a chain wheel and provides auxiliary power for the power-assisted bicycle; and finally, a housing of the motor is connected with a flexible gear positioning base of the harmonicreducer and the sealing cover through the flange plate, and is fixedly mounted on a power-assisted bicycle bracket. The direct-current brushless motor, the harmonic reducer, the overrunning clutch and the torque sensor are integrated, intelligent auxiliary riding can be achieved, power output is stable, and manual riding is easier.
本发明公开了一种电动助力自行车中置驱动装置,包括电机、谐波减速器、力矩传感器、离合器、密封罩、法兰盘以及中轴;所述电机为直流无刷电机,电机轴与所述谐波减速器的凸轮轴连接,并且谐波减速器的刚轮输出;刚轮定位座连接所述离合器,所述离合器为超越离合器,连接所述中轴实现单向传动;中轴连接牙盘,为助力自行车提供辅助动力;最后电机的外壳与谐波减速器的柔轮定位座以及所述密封罩通过所述法兰盘连接,并且固定安装在助力自行车支架上。本发明集成了直流无刷电机、谐波减速器、超越离合器与力矩传感器,能够实现智能辅助骑行,动力输出平稳,使人力骑行更加轻松。
Middle driving device of electric power-assisted bicycle
一种电动助力自行车中置驱动装置
2021-01-15
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Middle driving mechanism for power-assisted bicycle and power-assisted bicycle
European Patent Office | 2021
|European Patent Office | 2024
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