The present invention relates to an axial motor for an electric bicycle which is coupled to a wheel of the electric bicycle to rotate a wheel. The axial motor for the electric bicycle comprises: a rotor (110) provided with a wheel coupling frame to which a wheel is coupled at an outer periphery and formed with a first shaft insertion hole (116) on one side surface thereof; a cover (120) coupled to the other side surface of the rotor (110) and formed with a second shaft insertion hole (121); a magnet (130) coupled to an inner wall surface of the rotor (110); a stator (190) provided with a core (150) accommodated in an inner space formed of the rotor (110) and the cover (120) and formed with a third shaft insertion hole (151), and a coil (180) coupled to an outer periphery of the core (150) and imparting a rotating magnetic field to the magnet (130); and a shaft (160) inserted by passing through the first shaft insertion hole (116), the third shaft insertion hole (151), and the shaft (160). A back yoke (140) formed of a magnetic material is provided in a region in contact with the magnet (130) on the inner wall surface of the rotor (110).

    본 발명은 전동자전거의 바퀴에 결합되어 상기 바퀴를 회전시키는 전동자전거용 액셜모터에 관한 것으로서, 외주연에 상기 바퀴가 결합되는 휠결합프레임이 구비되며, 일측면에 제1축삽입공(116)이 형성된 로터(110)와; 상기 로터(110)의 타측면에 결합되며 제2축삽입공(121)이 형성되는 커버(120)와; 상기 로터(110)의 내벽면에 결합되는 마그넷(130)과; 상기 로터(110)와 상기 커버(120)로 형성된 내부공간에 수용되며 판면에 제3축삽입공(151)이 형성되는 코어(150)와, 상기 코어(150)의 외주연에 결합되어 상기 마그넷(130)에 회전자계를 부여하는 코일(180)이 구비된 고정자(190)와; 상기 제1축삽입공(116)과 제3축삽입공(151) 및 상기 제2축삽입공(121)을 관통하여 삽입되는 축(160)을 포함하며, 상기 로터(110)의 내벽면에 상기 마그넷(130)과 접촉되는 영역에는 자성체로 형성된 백요크(140)가 구비되는 것을 특징으로 한다.


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    Title :

    AXIAL MOTOR FOR ELECTRIC BICYCLE


    Additional title:

    전동자전거용 액셜모터


    Contributors:

    Publication date :

    2020-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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