The invention relates to the field of middle motors, in particular to a middle motor for an electric power-assisted bicycle, which comprises a box body, a middle shaft, a motor, an output shaft and a harmonic reducer, the middle shaft, the motor and the harmonic reducer are fixed in the box body, the input end of the middle shaft is used for being connected with pedals of the bicycle, the output end of the middle shaft is connected with the output shaft, and a torque sensor is arranged on the middle shaft. One end of the torque sensor is connected with the middle shaft, the other end of the torque sensor is connected with the output shaft, the motor comprises a stator and a rotor, the stator sleeves the rotor, the rotor is located on the outer ring of the middle shaft, the input end of the harmonic reducer is connected with the rotor, and the output end of the harmonic reducer is connected with the output shaft. By arranging the torque sensor, whether the motor participates or not is controlled more flexibly, the power assisting effect can be provided under the condition that driving force is insufficient, and power assisting better meets the use requirement of a user.
本发明涉及中置电机领域,具体为一种电助力自行车用中置电机,包括包括箱体、中轴、电机、输出轴和谐波减速器,中轴、电机和谐波减速器固定在箱体内,中轴的输入端用于连接自行车的踏板,中轴的输出端连接输出轴,中轴上设有扭矩传感器,扭矩传感器一端连接中轴,扭矩传感器的另一端连接输出轴,电机包括定子和转子,定子套设在转子外侧,转子位于中轴的外圈,谐波减速器的输入端连接转子,谐波减速器的输出端连接输出轴。本发明通过设置有扭矩传感器,更加灵活地控制电机是否参与,能够在驱动力不足的情况下才提供助力效果,助力更加贴合使用者的使用需求。
Middle motor for electric power-assisted bicycle
一种电助力自行车用中置电机
2023-01-31
Patent
Electronic Resource
Chinese
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