A drive unit for an electric bicycle is disclosed. According to an embodiment of the present invention, a drive unit for an electric bicycle comprises: a motor generating a rotational force to drive a wheel of an electric bicycle; and a deceleration gear unit having a plurality of gears to decelerate the rotational force generated from the motor. The motor comprises: a rotor wherein an accommodating space is formed in the center; and a stator spaced from the rotor at a predetermined distance and installed to cover the rotor. The deceleration gear unit comprises: a first planetary gear assembly arranged in the accommodating space inside the motor to be connected to the rotor; and a second planetary gear assembly arranged in an outer side of the motor and connected to the first planetary gear assembly.

    전기 자전거의 구동 유닛이 개시된다. 본 발명의 실시 예에 따른 전기 자전거의 구동 유닛은 전기 자전거의 휠을 구동하기 위한 회전력을 발생시키는 모터; 모터로부터 발생된 회전력을 감속하는 복수의 기어를 갖춘 감속기어유닛;을 포함하고, 모터는 중앙에 수용공간이 형성된 로터와 로터와 일정간격 이격되어 로터를 감싸도록 설치된 스테이터를 구비하고, 감속기어유닛은 모터의 내측 수용공간에 배치되어 로터와 연결되는 제1 유성기어조립체와, 모터의 외측에 배치되며 제1 유성기어조립체와 연결되는 제2 유성기어조립체를 포함한다.


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    Title :

    DRIVE UNIT FOR ELECTRIC BICYCLE


    Additional title:

    전기 자전거의 구동 유닛


    Contributors:

    Publication date :

    2015-06-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F16H Getriebe , GEARING



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