The invention relates to the technical field of bicycles, and particularly discloses a bicycle centrally-mounted power-assisted motor and an electric power-assisted bicycle, and the bicycle centrally-mounted power-assisted motor comprises a rotating shaft and an output gear disc; the rotating shaft is sleeved with a first connecting ring, and a second connecting ring is coaxially arranged on the output gear disc. The inner diameter of the second connecting ring is larger than the outer diameter of the first connecting ring, and the first connecting ring is arranged in the second connecting ring. Ratchets are arranged on the inner ring surface of the second connecting ring; a snap spring structure is arranged on the outer ring surface of the first connecting ring; the output gear disc is driven to rotate in the forward direction, and the clamping spring structure abuts against the ratchets in a clamped mode and drives the chain disc to rotate in the forward direction through the rotating shaft. The chain plate is driven to drive the rotating shaft to rotate reversely, and the clamping spring structure and the ratchets move relatively. One-way transmission of the chain plate can be realized through a simple structure, so that the internal structure of the middle motor is optimized.
本申请涉及自行车技术领域,具体公开了一种自行车中置助力电机及电助力自行车,包括转动轴以及输出齿轮盘;转动轴上套设有第一连接环,输出齿轮盘上有同轴设置的第二连接环;第二连接环的内径大于第一连接环的外径,第一连接环设置在第二连接环内;第二连接环的内环面上设置有棘齿;第一连接环的外环面上设置有卡簧结构;输出齿轮盘受驱正向转动,卡簧结构与棘齿抵持卡接并通过转动轴带动链盘正向转动;链盘受驱带动转动轴反向转动,卡簧结构与棘齿相对运动。本申请通过简单的结构能够实现链盘的单向传动,使得中置电机的内部结构得到优化。
Middle-arranged power-assisted motor of bicycle and electric power-assisted bicycle
自行车中置助力电机及电助力自行车
2024-01-16
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Middle motor assembly and electric power-assisted bicycle
European Patent Office | 2022
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