A PCB axial fluted disc type power assisting device without changing a bottom bracket of a bicycle comprises a middle shaft, a PCB disc and a crankset, the middle shaft is installed in the bottom bracket of the bicycle, the crankset is installed on one side of the bottom bracket, the PCB axial fluted disc type power assisting device is characterized in that the crankset is divided into a fixed part and a rotating part, and the rotating part is provided with a bearing connected with the fixed part; a cavity is formed in the fixing part, the PCB disc is installed in the cavity, and stator windings are printed on the two faces of the PCB disc; the rotating part comprises an output disc and a rotor disc, and the rotor disc drives the output disc to rotate; the rotor disc is located in the cavity, and the end portion of the rotor disc is close to the two faces of the PCB disc to form a uniform double-air-gap structure. The chain wheel type driving structure is adopted, the installation process is simplified, interference to the bicycle structure is reduced, the axial size is short, the weight is light, the light weight requirement is met, the disc type rotor design is adopted, high torque density is easy to achieve, the response speed is high, and riding is easier.

    一种不改变自行车五通的PCB轴向齿盘式助力装置,包括中轴、PCB盘和牙盘,中轴安装在自行车的五通管内,牙盘安装在五通管的一侧,其特征在于,所述牙盘分为固定部和转动部,转动部设有轴承与固定部连接;所述固定部内设有空腔,PCB盘安装在空腔内,且PCB盘的两面均印制定子绕组;所述转动部包括输出盘和转子盘,转子盘带动输出盘转动;所述转子盘位于空腔内,转子盘的端部靠近PCB盘的两面,形成均匀的双气隙结构;本发明采用牙盘式驱动结构,简化安装过程,减少对自行车结构的干扰,轴向尺寸短,重量轻,满足轻量化需求,盘式转子设计,易于实现高扭矩密度,响应速度较快,使得骑行更轻松。


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    Title :

    PCB axial fluted disc type power assisting device without changing bottom bracket of bicycle


    Additional title:

    一种不改变自行车五通的PCB轴向齿盘式助力装置


    Contributors:
    LU WENFENG (author)

    Publication date :

    2024-04-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B62K Fahrräder , CYCLES







    Bicycle fluted disc

    HUANG ZITAI | European Patent Office | 2020

    Free access