The invention discloses a middle motor and a bicycle. The middle motor comprises a machine shell, a first end cover, a speed reducer and a stator. The first end cover comprises a cover body part and a hollow shaft. The hollow shaft extends in the axis direction of the machine shell. The cover body part covers the first end of the machine shell. The hollow shaft is located in the machine shell. The speed reducer is arranged in the machine shell. The speed reducer comprises an input shaft, an output part and a plurality of mounting grooves. The input shaft is in transmission connection with the output part. The input shaft is used for driving the output part to rotate. The output part is used for transmitting power to the bicycle. The input shaft is rotatably arranged on the outer side of the hollow shaft in a sleeving mode. The multiple mounting grooves are distributed in the surface of the input shaft in the circumferential direction at intervals. The mounting grooves are used for arranging magnetic parts. The stator is arranged on the inner wall of the machine shell and located on the radial outer side of the input shaft. The stator drives the magnetic piece to drive the input shaft to rotate. The magnetic piece is arranged on the input shaft of the speed reducer, so that the input shaft of the speed reducer forms the rotor at the same time, the structure of the middle motor is simplified, and the flexibility of the bicycle is improved.
本申请公开了一种中置电机和自行车。中置电机包括机壳、第一端盖、减速器和定子。第一端盖包括盖体部和空心轴。空心轴沿机壳的轴线方向延伸。盖体部盖设机壳的第一端。空心轴位于机壳中。减速器设置于机壳内。减速器包括输入轴、输出部和多个安装槽。输入轴与输出部传动连接。输入轴用于带动输出部转动。输出部用于向自行车传递动力。输入轴可转动地套设在空心轴外侧。多个安装槽在输入轴的表面周向间隔分布。安装槽用于布置磁性件。定子设置在机壳的内壁且位于输入轴的径向外侧。定子驱动磁性件带动输入轴旋转。通过在减速器的输入轴上设置磁性件来使减速器的输入轴同时形成为转子,简化了中置电机的结构,提升自行车的灵活性。
Middle motor and bicycle
中置电机和自行车
2025-01-28
Patent
Electronic Resource
Chinese
Middle motor transmission system, middle motor and electric bicycle
European Patent Office | 2023
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