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    Oldham coupling, manufacturing process thereof, coupling process of shafts by oldham coupling and electric motor including oldham coupling
    12.
    发明授权
    Oldham coupling, manufacturing process thereof, coupling process of shafts by oldham coupling and electric motor including oldham coupling 有权
    Oldham联轴器，其制造工艺，由oldham联轴器和包括oldham联轴器的电动机的轴的联接过程

    公开(公告)号：US08736120B2

    公开(公告)日：2014-05-27

    申请号：US13790453

    申请日：2013-03-08

    Applicant: Fanuc Corporation

    Inventor： Takuya Maeda ,  Isao Kariya

    IPC: H02K7/00

    CPC classification number: F16D3/04 ,  H02K7/003 ,  Y10T29/49826

    Abstract: An Oldham coupling includes a first coupling part, a second coupling part and an intermediate part. The first coupling part and the second coupling part are coupled to each other with the intermediate part provided therebetween. The first coupling part and the second coupling part are fitted on fitting portions of the intermediate part extending perpendicular to each other. The first coupling part, the second coupling part and the intermediate part have fitting indication portions. The fitting indication portions allow a positional relationship between the first coupling part and the second coupling part about a rotational axis to be determined.

    Abstract translation: 十字联轴器包括第一联接部件，第二联接部件和中间部件。 第一联接部分和第二联接部分彼此联接，中间部分设置在它们之间。 第一联接部分和第二联接部分装配在彼此垂直延伸的中间部分的装配部分上。 第一联接部分，第二联接部分和中间部分具有装配指示部分。 装配指示部分允许围绕要确定的旋转轴线的第一联接部分和第二联接部件之间的位置关系。

    ELECTRIC MOTOR HAVING STATOR CORE FOR REDUCING COGGING TORQUE
    13.
    发明申请
    ELECTRIC MOTOR HAVING STATOR CORE FOR REDUCING COGGING TORQUE 有权
    具有定子芯的电动机用于减少加固扭矩

    公开(公告)号：US20140103755A1

    公开(公告)日：2014-04-17

    申请号：US14054955

    申请日：2013-10-16

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda ,  Reo Arai

    IPC: H02K7/04

    CPC classification number: H02K29/03 ,  H02K1/16 ,  H02K7/04 ,  H02K2201/06 ,  H02K2213/03

    Abstract: An electric motor includes a stator having a core back which varies in width in a circumferential direction, and a rotor provided with permanent magnets. In the electric motor, cogging torque is generated M times during one revolution of the rotor, due to the number of magnetic poles of the rotor and the varied shape of the core back. The core back is provided with a step shift by an angle obtained by multiplying (360/M/2) degrees with an odd number. According to one embodiment, the core back may be provided with holes, concave portions or convex portions, so as to provide the core back with the step shift.

    Abstract translation: 电动机包括具有在周向上宽度变化的芯背的定子和设置有永磁体的转子。 在电动机中，由于转子的磁极数和芯背的变化形状，在转子的一转期间齿槽转矩产生M次。 芯背设置有通过将（360 / M / 2）度与奇数相乘得到的角度的阶跃移位。 根据一个实施例，芯背可以设置有孔，凹部或凸部，以便使芯返回步进位移。

    Multi-phase transformer
    14.
    发明授权
    Multi-phase transformer 有权

    公开(公告)号：US12211640B2

    公开(公告)日：2025-01-28

    申请号：US17564846

    申请日：2021-12-29

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda

    IPC: H01F30/12 ,  H01F27/04 ,  H01F27/28 ,  H01F29/02 ,  H01F29/14

    Abstract: A multi-phase transformer includes a centrally-disposed first core, a plurality of second cores each provided outside the first core so as to constitute a loop-shaped magnetic path with respect to the first core, and a primary winding and a secondary winding wound on each of the second cores.

    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS
    15.
    发明申请
    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS 审中-公开

    公开(公告)号：US20200294703A1

    公开(公告)日：2020-09-17

    申请号：US15930715

    申请日：2020-05-13

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda ,  Masatomo Shirouzu

    IPC: H01F27/26 ,  H01F27/245 ,  H01F27/255

    Abstract: A three-phase reactor includes: a central iron core; an outer peripheral iron core surrounding the central iron core; and at least three connecting units that magnetically connect the central iron core and the outer peripheral iron core to each other, in which each of the connecting units includes at least one connecting iron core, at least one coil wound around the connecting iron core, and at least one gap.

    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS
    16.
    发明申请
    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS 审中-公开

    公开(公告)号：US20200258681A1

    公开(公告)日：2020-08-13

    申请号：US16864952

    申请日：2020-05-01

    Applicant: FANUC CORPORATION

    Inventor： Masatomo Shirouzu ,  Takuya Maeda

    IPC: H01F37/00 ,  H01F27/32 ,  H02K11/33 ,  H01F3/14

    Abstract: A three-phase reactor includes: an outer peripheral iron core; and at least three iron-core coils that come in contact with an inner surface of the outer peripheral iron core or are joined to the inner surface. The at least three iron-core coils include corresponding iron cores and corresponding coils wound around the iron cores, and gaps that can magnetically connect one iron-core coil of the at least three iron-core coils and an iron-core coil adjacent to the one iron-core coil to each other are formed between the one iron-core coil of the at least three iron-core coils and the iron-core coil adjacent to the one iron-core coil.

    Linear motor with reduced cogging force
    20.
    发明授权
    Linear motor with reduced cogging force 有权

    公开(公告)号：US10355575B2

    公开(公告)日：2019-07-16

    申请号：US14925023

    申请日：2015-10-28

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda

    IPC: H02K1/08 ,  H02K41/03 ,  H02K29/03

    Abstract: A linear motor includes a plurality of magnets arranged at equal intervals, and an armature arranged opposite to the magnets and including an armature core having a plurality of teeth extending toward the magnets. The teeth include a first tooth located at one end in the thrust direction and a second tooth located at the other end on the opposite side. The first tooth and the second tooth have different dimensions or shapes so as to reduce cogging force generated due to the structure of the armature core at the ends in the thrust direction.

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