A drivetrain (10) of an electric bike (1) is provided. The drivetrain includes an outer rotor type motor (11), a shaft gear (13), a crankshaft (15) and a single-stage velocity-reduction driving assembly (17). The outer rotor type motor includes a stator assembly (111), a rotor assembly (112) and a housing (113). The rotor assembly is disposed to the housing. The shaft gear includes a joint portion (131) and a gear portion (132). The joint portion is disposed to the housing. The single-stage velocity-reduction driving assembly is configured around the crankshaft and includes a driving gear (171). A central axis (133) of the shaft gear and a central axis (151) of the crankshaft are substantially parallel to each other and non-coaxial, and the driving gear directly meshes with the gear portion. Accordingly, the drivetrain of the electric bike of the present invention has the advantages of easier assembly and having lower cost.


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    Title :

    DRIVETRAIN FOR ELECTRIC BIKE


    Additional title:

    ANTRIEBSSTRANG FÜR EIN ELEKTRISCHES FAHRRAD
    TRANSMISSION POUR BICYCLETTE ÉLECTRIQUE


    Contributors:

    Publication date :

    2020-09-02


    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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