A drive unit for an electric bicycle, the drive unit including a motor configured to generate a rotary force to drive a wheel of the electric bicycle, and a reduction gear unit provided with a plurality of gears to decelerate a rotary force generated from the motor, wherein the motor is provided with a rotor (501) which has an accommodation space formed at a center thereof and a stator (506) installed to surround the rotor (501) while being spaced apart from the rotor (501) by a predetermined interval, and the reduction gear unit includes a first planet gear assembly (510) disposed on an accommodation space inside the motor (500) and connected to the rotor (501), and a second planet gear assembly (520) disposed outside the motor (500) and connected to the first planet gear assembly (510).


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    Title :

    Drive unit for electric bicycle


    Additional title:

    Antriebseinheit für ein elektrische Fahrräder
    Unité de traction pour bicyclette électrique


    Contributors:

    Publication date :

    2015-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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