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    Motor unit
    11.
    发明授权
    Motor unit 有权

    公开(公告)号：US11689075B2

    公开(公告)日：2023-06-27

    申请号：US17676226

    申请日：2022-02-21

    申请人： NIDEC CORPORATION

    发明人： Takayuki Makino ,  Satoshi Mukai ,  Masato Aono

    IPC分类号： H02K5/16 ,  H02K9/19 ,  H02K21/12 ,  H02K13/10

    CPC分类号： H02K5/16 ,  H02K9/19 ,  H02K13/10 ,  H02K21/12

    摘要： A motor unit includes a bearing rotatably holding a shaft, and a housing accommodating a rotor, a stator, and the bearing. The housing has an opening, a cover closing the opening and fixed to the housing, and an annular member that has an annular shape when viewed from the axial direction and is provided independently from the bearing. The cover includes an accommodation portion accommodating the annular member, one or more ribs disposed radially outward of the accommodation portion when viewed from the axial direction, and one or more fixing points fixed to the housing. The one or more ribs extend outward from the accommodation portion. When viewed from the axial direction, for at least one of the ribs, the fixing point is formed on an extension line extending outward from the rib in a direction in which the rib extends.

    MOTOR
    13.
    发明申请
    MOTOR 审中-公开

    公开(公告)号：US20190165646A1

    公开(公告)日：2019-05-30

    申请号：US16312982

    申请日：2016-06-22

    申请人： SHENG-LIAN LIN

    发明人： SHENG-LIAN LIN

    IPC分类号： H02K7/08 ,  H02K1/28 ,  H02K1/12 ,  H02K5/16 ,  H02K11/33

    CPC分类号： H02K7/08 ,  H02K1/12 ,  H02K1/22 ,  H02K1/28 ,  H02K5/04 ,  H02K5/16 ,  H02K11/33

    摘要： A motor includes a stator, a rotor, and a first bearing. A housing of the stator has a top wall, a bottom wall opposite, a side wall and a first opening in the top wall. A rotating shaft of the rotor has a first magnetic unit having a first outer surface. The first outer surface includes first and second magnetic pole surfaces alternately arranged. The first and second magnetic pole surfaces have different magnetic poles. The first bearing having a first groove is disposed in the first opening. The first magnetic unit is located in the first groove having a first inner surface facing the first outer surface. The first inner surface includes third and fourth magnetic pole surfaces alternately arranged. The third and fourth magnetic pole surfaces have different magnetic pole. The first and third as well as second and fourth magnetic pole surfaces have the same magnetic poles.

    ROTOR AND ROTATING ELECTRICAL MACHINE
    14.
    发明申请
    ROTOR AND ROTATING ELECTRICAL MACHINE 审中-公开

    公开(公告)号：US20190068014A1

    公开(公告)日：2019-02-28

    申请号：US16100237

    申请日：2018-08-10

    申请人： FANUC CORPORATION

    发明人： Shinobu TAKANO ,  Hisashi MAEDA ,  Takafumi KAJIYA

    IPC分类号： H02K1/27 ,  H02K15/03 ,  H02K21/12 ,  H02K3/24 ,  H02K1/28

    CPC分类号： H02K1/278 ,  H02K1/28 ,  H02K3/24 ,  H02K5/16 ,  H02K9/19 ,  H02K15/03 ,  H02K21/12 ,  H02K21/16 ,  H02K2201/06

    摘要： A rotor includes: a rotating member; a permanent magnet arranged in a plurality of rows along a circumferential direction of the rotating member and divided into a plurality of parts in a rotational axis direction X of the rotating member; and a cover tube divided into a plurality of parts in the rotational axis direction of the rotating member and covering an outer circumferential surface of the permanent magnet, the cover tube being formed of a fiber-reinforced plastic, wherein the plurality of permanent magnets in each row are arranged in an oblique direction with respect to the rotational axis direction of the rotating member, and the permanent magnets adjacent to the arrangement direction are disposed to be skewed in the circumferential direction, and at least one of the divided cover tubes covers an outer circumferential surface of one of the divided permanent magnets in the circumferential direction of the rotating member.

    MAGNET ASSEMBLY FOR LINEAR MOTOR HAVING COVER MEMBER COVERING MAGNET PLATE
    20.
    发明申请
    MAGNET ASSEMBLY FOR LINEAR MOTOR HAVING COVER MEMBER COVERING MAGNET PLATE 审中-公开

    公开(公告)号：US20180097434A1

    公开(公告)日：2018-04-05

    申请号：US15713957

    申请日：2017-09-25

    申请人： FANUC CORPORATION

    发明人： Yuusuke Kondou

    IPC分类号： H02K41/03 ,  H02K7/09 ,  H02K5/10 ,  H02K5/16 ,  H02K5/22

    CPC分类号： H02K41/031 ,  H02K5/10 ,  H02K5/16 ,  H02K5/22 ,  H02K7/09

    摘要： A magnet assembly for a linear motor includes a cover member having weak magnetic properties, which covers one or more magnet plates, and a fixing mechanism for positioning the end parts 14c of the cover member directly above permanent magnets and detachably fixing the cover member to the magnet plate. The cover member has a first surface part covering a surface of the magnet plate which faces an armature and second surface parts continuous from the first surface part and covering side parts of the magnet plate. Furthermore, the fixing mechanism is provided on the second surface parts. Through the use of this magnet assembly for a linear motor, it is possible to minimize a rise of the cover member from the magnet plate without deteriorating workability at the time of installation or replacement of the cover member.