The present invention relates to a power transmission device for an electric bicycle, which is freely detached. The power transmission device for an electric bicycle, which is freely detached, includes: a disc rotor installed on a hub to which a wheel of an electric bicycle is fixed and including a ring gear on one side; a quick release mount fixed onto a front wheel fork or a shock absorbing unit of the electric bicycle; and a driving unit including a driving motor, and attached to and detached from the quick release mount, wherein the driving unit includes at least a gear gear-combined with the ring gear to transfer power of the driving motor to the ring gear by reducing the power of the driving motor using multiple gear combinations. According to the present invention, the power transmission device for an electric bicycle improves convenience of use as the power transmission device can be attached and detached. The power transmission device can minimize damage to the motor so the life of the power transmission device can be extended. The power transmission device enables the electric bicycle to be used in various embodiments.

    본 발명은 탈부착이 자유로운 전기자전거 동력 전달장치에 관한 것으로, 전기자전거의 바퀴가 고정되는 허브 상에 설치되고, 편면에 링기어를 구비한 디스크로터; 상기 전기자전거의 전륜포크 또는 충격완충유닛 상에 고정된 퀵 릴리즈 마운트; 상기 퀵 릴리즈 마운트에 장,탈착되고, 구동모터를 포함하며, 구동모터의 동력을 다수의 기어조합을 통해 감속시켜 상기 링기어로 전달하도록 링기어와 기어결합되는 적어도 하나 이상의 기어를 갖는 구동유닛;을 구비한 것을 특징으로 하는 탈부착이 자유로운 전기자전거 동력 전달장치를 제공한다. 본 발명에 따르면, 동력 전달장치를 장,탈착할 수 있어 사용상 편의성이 증대되고, 모터의 손상을 최소화시키므로 장수명화가 가능할 뿐만 아니라, 전기자전거를 다양한 형태로 활용할 수 있다.


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    Title :

    ELECTRIC BIKE POWERTRAIN DETACHABLE FREE


    Additional title:

    탈부착이 자유로운 전기자전거 동력 전달장치


    Contributors:

    Publication date :

    2016-05-20


    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 / B62L BRAKES SPECIALLY ADAPTED FOR CYCLES , Bremsen, besonders für Fahrräder oder Motorräder ausgebildet



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