BRUSHLESS DIRECT-CURRENT MOTOR
    1.
    发明公开

    公开(公告)号:US20230238851A1

    公开(公告)日:2023-07-27

    申请号:US18042896

    申请日:2021-08-27

    IPC分类号: H02K5/04

    CPC分类号: H02K5/04

    摘要: A brushless DC motor includes a housing, at least one end of which is open to form an interior receiving space. A stator assembly includes a stator and a winding arranged on the stator and is arranged in the receiving space. A rotor assembly includes a rotor coupled to an output portion to output power. Both the outer contour and inner contour of the housing are in the shape of a regular hexagon.

    PERMANENT MAGNET DIRECT-CURRENT ELECTRIC MOTOR

    公开(公告)号:US20220037964A1

    公开(公告)日:2022-02-03

    申请号:US17279979

    申请日:2019-09-24

    IPC分类号: H02K11/02 H02K1/17 H02K23/04

    摘要: The present application relates to a permanent magnet DC motor, which comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises a housing and a magnetic cylinder, and the rotor assembly comprises a rotor; the rotor, the magnetic cylinder and the housing are sequentially arranged from inside to outside; the ratio of an angle corresponding to a commutation section of the surface magnetic curve of the magnetic cylinder to the corresponding angle of the surface magnetic curve of the corresponding magnetic pole is less than or equal to 15%; and the outer peripheral contour of the magnetic cylinder is based on a regular polygon, and curves are arranged at the connections of sides of the regular polygon to smoothly connect the sides of the regular polygon. The motor of the present application reduces the noise and vibration of the motor and improves its EMC level.