The invention relates to an electric trolley which comprises a chassis and left and right driving wheels driven by an electric motor. The left and right drive wheels have an electromechanical servo brake, an auxiliary brake that mechanically biases at least one of the left and right drive wheels in a braked state, an electric release actuator for releasing the auxiliary brake, a receptacle for receiving a power source for powering the electric motor, the electromechanical servo brake and the electric release actuator, a handlebar assembly includes a handle mounting structure, an elongated handlebar, a pair of force sensing couplings connecting longitudinally spaced portions of the handlebar to the handle mounting structure. Each of the force sensing couplings includes an elastic member and a load sensor for sensing a force applied to the handlebar and transmitting a load signal, and a controller receiving the load signal and controlling a current applied to the electric motor to amplify the force sensed by the force sensing couplings and generate a torque proportional to the force, a motorized release actuator is actuated when the force applied by the user exceeds a threshold.

    本发明涉及一种电动手推车,包括底盘,由电动马达驱动左及右驱动轮。左及右驱动轮具有机电伺服制动器,辅助制动器,其将左及右驱动轮中的至少一个机械偏置于制动状态,用于释放辅助制动器的电动释放致动器,容纳器,用于接收用于向电动马达、机电伺服制动器和电动释放致动器供电的电源,把手安装结构,一个细长的车把,一对力传感联接器,其将车把的纵向间隔部分连接到把手安装结构。每个的力传感联接器包括弹性构件和负载传感器,用于感测施加到车把的力并传输负载信号,以及控制器,其接收负载信号并控制施加到电动马达的电流,以放大由力传感联接器感应到的力,并产生与该力成比例的扭矩,当用户施加的力超过阈值时,致动电动释放致动器。


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    Title :

    Electric trolley


    Additional title:

    电动手推车


    Contributors:

    Publication date :

    2024-02-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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