The invention relates to the technical field of power-assisted bicycles, in particular to a mounting structure of a centrally-mounted motor and a power-assisted bicycle. The mounting structure of the centrally-mounted motor comprises a motor assembly, a connecting frame, fasteners and a stretching protection sleeve, a through mounting hole is formed in the motor assembly, the connecting frame comprises two connecting arms located at the two ends of the mounting hole in the length direction respectively, the stretching protection sleeve is arranged in the mounting hole in a penetrating mode, and the two ends of the stretching protection sleeve are connected with the fasteners. The fasteners penetrate through the connecting arms and are fixed to the stretching protective sleeve so as to fix the motor assembly and the connecting frame. Due to the fact that the stretching protection sleeve can be stretched and deformed under the action of the pre-tightening force of the fasteners, compensation is provided for the gap between the motor assembly and the connecting frame, the motor assembly and the connecting frame are prevented from being deformed and even broken under the action of the pre-tightening force, and protection on the motor assembly and the connecting frame is improved. The power-assisted bicycle adopts the mounting structure of the centrally-mounted motor so that the motor assembly and the frame are stably fixed, and the protection on the motor assembly is improved.

    本发明涉及助力自行车技术领域,涉及一种中置电机的安装结构及助力自行车。中置电机的安装结构包括电机组件、连接架、紧固件及拉伸保护套,电机组件上开设有贯通的安装孔,连接架包括分别位于安装孔长度方向两端的两个连接臂,拉伸保护套穿设在安装孔内,拉伸保护套的两端均连接有紧固件,紧固件穿过连接臂并与拉伸保护套固定,以将电机组件和连接架相固定。由于拉伸保护套能够在紧固件预紧力的作用下发生拉伸变形,为电机组件与连接架之间的间隙提供补偿,防止电机组件和连接架在预紧力的作用下发生变形甚至断裂,提高对电机组件和连接架的保护。助力自行车应用上述中置电机的安装结构,保证电机组件与车架的稳固固定,提高对电机组件的保护。


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    Title :

    Mounting structure of centrally-mounted motor and power-assisted bicycle


    Additional title:

    中置电机的安装结构及助力自行车


    Contributors:

    Publication date :

    2021-12-21


    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



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