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    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS
    3.
    发明申请
    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS 审中-公开

    公开(公告)号：US20170084377A1

    公开(公告)日：2017-03-23

    申请号：US15265929

    申请日：2016-09-15

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda ,  Masatomo Shirouzu

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

    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.

    LINEAR MOTOR WITH REDUCED COGGING FORCE
    4.
    发明申请
    LINEAR MOTOR WITH REDUCED COGGING FORCE 审中-公开
    线性电动机具有降低积聚力

    公开(公告)号：US20160126820A1

    公开(公告)日：2016-05-05

    申请号：US14925023

    申请日：2015-10-28

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda

    IPC: H02K41/03 ,  H02K1/08

    CPC classification number: H02K41/031 ,  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.

    Abstract translation: 线性电动机包括以等间隔布置的多个磁体和与磁体相对布置的电枢，并且包括具有朝向磁体延伸的多个齿的电枢铁芯。 齿包括位于推力方向一端的第一齿和位于相对侧另一端的第二齿。 第一齿和第二齿具有不同的尺寸或形状，以便减少由于电枢芯在推力方向的端部处的结构而产生的齿槽力。

    Electric motor having stator core for reducing cogging torque
    5.
    发明授权
    Electric motor having stator core for reducing cogging torque 有权
    具有用于减少齿槽转矩的定子芯的电动机

    公开(公告)号：US09293974B2

    公开(公告)日：2016-03-22

    申请号：US14054955

    申请日：2013-10-16

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda ,  Reo Arai

    IPC: H02K7/04 ,  H02K29/03 ,  H02K1/16

    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。

    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS
    6.
    发明公开
    THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS 审中-公开

    公开(公告)号：US20230274878A1

    公开(公告)日：2023-08-31

    申请号：US18312465

    申请日：2023-05-04

    Applicant: FANUC CORPORATION

    Inventor： Masatomo Shirouzu ,  Takuya Maeda

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

    CPC classification number: H01F37/005 ,  H01F3/14 ,  H01F37/00 ,  H02K11/33 ,  H01F27/324

    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.

    MULTI-PHASE TRANSFORMER
    7.
    发明申请
    MULTI-PHASE TRANSFORMER 有权

    公开(公告)号：US20220122767A1

    公开(公告)日：2022-04-21

    申请号：US17564846

    申请日：2021-12-29

    Applicant: FANUC CORPORATION

    Inventor： Takuya Maeda

    IPC: H01F30/12 ,  H01F29/02 ,  H01F27/28 ,  H01F27/04 ,  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
    8.
    发明授权
    Three-phase reactor comprising iron-core units and coils 有权

    公开(公告)号：US10748703B2

    公开(公告)日：2020-08-18

    申请号：US15400066

    申请日：2017-01-06

    Applicant: FANUC CORPORATION

    Inventor： Masatomo Shirouzu ,  Takuya Maeda

    IPC: H01F27/24 ,  H01F37/00 ,  H01F3/14 ,  H02K11/33 ,  H01F27/32

    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.

    Three-phase transformer
    9.
    发明授权
    Three-phase transformer 有权

    公开(公告)号：US10692650B2

    公开(公告)日：2020-06-23

    申请号：US16127790

    申请日：2018-09-11

    Applicant: FANUC CORPORATION

    Inventor： Chao Zhi ,  Takuya Maeda

    IPC: H01F30/12 ,  H01F3/10 ,  H01F27/26 ,  H01F27/30 ,  H02M3/24 ,  H01F27/12 ,  H01F27/32 ,  H01F3/14

    Abstract: A three-phase transformer according to an embodiment includes a first plate iron core and a second plate iron core disposed opposite each other; a plurality of columnar iron cores disposed between the first plate iron core and the second plate iron core so as to be connected to the first plate iron core or the second plate iron core, the number of the columnar iron cores being an integer multiple of 3, the columnar iron cores being disposed rotation-symmetrically with respect to an axis equidistant from central axes of the columnar iron cores; and coils including a plurality of primary coils and a plurality of secondary coils, the number of the primary coils being an integer multiple of 3, the number of the secondary coils being an integer multiple of 3, the primary coils and the secondary coils being wound on the individual columnar iron cores.

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