The center shaft structure of the electric power-assisted bicycle comprises a center shaft, a shaft sleeve and a magnetic sensor, an induction signal center is arranged in the middle of the center shaft, a fixing ring is annularly arranged on a mounting part, a plurality of fixing grooves are formed in the fixing ring in a surrounding mode, and magnetic elements are correspondingly arranged in the fixing grooves; bearings are arranged at the two ends of the shaft sleeve, an induction signal center is arranged in the middle of the shaft sleeve, the shaft sleeve is arranged outside the middle shaft, the two ends of the middle shaft penetrate through the bearings, the induction signal center corresponds to the mounting part, and an induction window corresponding to the magnetic element is formed in the mounting part; the induction signal pivot assembly is correspondingly arranged outside the induction signal pivot in a surrounding mode, and a magnetic induction element is arranged at the position, corresponding to the induction window, of the inner side of the induction signal pivot assembly. Therefore, the structure of the center shaft can be more compact, the rotating speed of the center shaft can be sensed, and the strategy of auxiliary power output of the motor can be adjusted.
本发明公开了一种电助力自行车的中轴结构,包括中轴、轴套及磁性传感,中轴的中间具有感应信号中枢,安装部环设有固定环,固定环环绕设置有多个固定槽,固定槽内对应设置有磁性元件;轴套两端设有轴承,且轴套中间具有感应信号中枢,轴套套设于中轴外,并于使中轴的两端穿设于轴承,且感应信号中枢对应安装部设置,安装部上对应磁性元件开设有一个感应窗口;感应信号中枢组件对应环设于感应信号中枢外,感应信号中枢组件内侧对应感应窗口的位置设置有磁感应元件。借此,可使中轴结构更加紧凑,同时可感应中轴的转速并调整电机辅助动力输出的策略。
Middle shaft structure of electric power-assisted bicycle
一种电助力自行车的中轴结构
2024-08-23
Patent
Electronic Resource
Chinese
European Patent Office | 2023
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