Motor
    43.
    发明授权
    Motor 有权

    公开(公告)号:US09991769B2

    公开(公告)日:2018-06-05

    申请号:US14849862

    申请日:2015-09-10

    申请人: Nidec Corporation

    摘要: The motor according to the present disclosure comprises a rotary unit, a stationary unit disposed around the rotary unit, and a bearing mechanism which rotatably supports the rotary unit relative to the stationary unit. The rotary unit comprises a plurality of magnets. The stationary unit comprises a stator disposed around the rotary unit, and a cover which is electrically conductive and covers a top surface of the stator, and the stator comprises a stator core which includes a plurality of teeth and a core back, and a coil which is wound around the stator core via an insulator. The cover has openings on at least one area of a circumferential interval between neighboring teeth when seen in a top view, and the cover is connected to a ground potential.

    ELECTRIC MOTOR HAVING LABYRINTH
    44.
    发明申请

    公开(公告)号:US20180138774A1

    公开(公告)日:2018-05-17

    申请号:US15809187

    申请日:2017-11-10

    申请人: FANUC CORPORATION

    发明人: Yasuhito Mukai

    IPC分类号: H02K5/10 H02K7/08

    摘要: An electric motor including a labyrinth having a function for preventing foreign particles from entering an inside of the motor. A labyrinth member having a generally annular shape is fixed to a portion of a rotation shaft positioned on a front side than a front bearing with respect to an axis, by interference fit, etc., and the labyrinth member is configured to rotate integrally with the rotation shaft. The labyrinth member has at least one first opening formed on a front surface of thereof, and at least one second opening formed on an outer lateral surface thereof. The first opening and the second opening are fluidly communicated with each other within the labyrinth member.

    METHOD OF CONSTRUCTION FOR PERMANENT MAGNET GENERATOR

    公开(公告)号:US20180138768A1

    公开(公告)日:2018-05-17

    申请号:US15574224

    申请日:2016-05-19

    IPC分类号: H02K1/30 H02K1/27 H02K16/00

    摘要: A generator comprises as a first part a stack of disc-like annular rotors spaced one from the other and coaxially located upon and rotating with an elongate central member each rotor having an inner annular portion and an outer annular portion, the outer annular portion bearing and/or comprising a magnetic annulus, one or more spacers being coaxially mounted around the central member in between the inner annular portions of each rotor and abutting against them in such manner such as to brace them to remain orthogonal to the longitudinal axis of the assembly as well as providing the required spacing therebetween, and as a second part, a stack of annular stators interposed between the rotors and mounted over the spacers but having an inner clearance diameter greater than that of the outer diameter of the portion of spacer over which they are located.

    ELECTRIC MOTOR
    49.
    发明申请
    ELECTRIC MOTOR 审中-公开

    公开(公告)号:US20180048195A1

    公开(公告)日:2018-02-15

    申请号:US15233112

    申请日:2016-08-10

    IPC分类号: H02K1/27 H02K1/12 H02K7/08

    摘要: An electric motor includes a permanent magnet rotor unit and a stator unit. The permanent magnet rotor unit includes a spindle, at least one magnet fixedly disposed beside the spindle, at least one magnetic yoke fixedly disposed at an outer end of the magnet. The stator unit includes a cylindrical extension body. At least one coil is provided on the extension body. The extension body with the coil is mounted to the space between the magnet and the magnetic yoke. The electric motor doesn't use silicon steel plate, so it is light in weight. When the electric current is outputted, it doesn't need rectification. The magnetic field lines won't be diffused and interfere with each other to enhance the magnetic flux effectively.