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    BRUSHLESS MOTOR, EXTERNAL AC VOLTAGE SOURCE, AND ELECTRIC POWER STEERING DEVICE
    5.
    发明申请
    BRUSHLESS MOTOR, EXTERNAL AC VOLTAGE SOURCE, AND ELECTRIC POWER STEERING DEVICE 有权
    无刷电机，外部交流电源和电动转向装置

    公开(公告)号：US20140340015A1

    公开(公告)日：2014-11-20

    申请号：US14369828

    申请日：2013-01-11

    申请人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    发明人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    IPC分类号： H02P25/02

    CPC分类号： H02P25/026 ,  B62D5/046 ,  H02P2207/05

    摘要： The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive method for a brushless motor. The brushless motor includes an armature constituted by an armature core having armature windings of a plurality of phases, and a field pole constituted by a field pole core having a plurality of permanent magnets. A voltage, in which at least a 5th order harmonic component is superimposed on a 1st order fundamental wave of a voltage under predetermined phase difference condition and amplitude condition in order to increase a 1st order fundamental wave peak of the applied voltage over an applied voltage peak, is applied to the armature windings.

    摘要翻译： 本发明提供一种无刷电动机，其中可以提高电压利用率，从而可以提高电动机的转矩和输出，并且还提供了一种用于无刷电动机的驱动方法。 无刷电动机包括由具有多相电枢绕组的电枢铁心构成的电枢和由具有多个永久磁铁的场极铁芯构成的场极。 在预定的相位差条件和振幅条件下，在电压的1阶基波上叠加有至少5次谐波分量的电压，以便在施加的电压峰值上增加施加电压的1阶基波峰值 ，被施加到电枢绕组。

    Permanent magnet motor
    6.
    发明授权
    Permanent magnet motor 有权
    永磁电机

    公开(公告)号：US09564779B2

    公开(公告)日：2017-02-07

    申请号：US14234178

    申请日：2011-10-14

    申请人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao ,  Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi

    发明人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao ,  Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi

    IPC分类号： H02K3/00 ,  H02K1/16 ,  H02K21/16 ,  H02K29/03 ,  H02K3/28 ,  H02K1/27

    CPC分类号： H02K1/165 ,  H02K1/2773 ,  H02K1/278 ,  H02K3/28 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

    摘要： Provided is a permanent magnet motor that realizes reduction of both cogging torque and torque ripple, and also downsizing and weight reduction together with torque ripple reduction. When two sets of three-phase armature windings are defined such that a first armature winding 30-1 corresponds to U1 phase, V1 phase, and W1 phase and a second armature winding 30-2 corresponds to U2 phase, V2 phase, and W2 phase, U1 phase is provided in both of any adjacent slots of a plurality of slots 27, or at least one of U1 phase and U2 phase is provided in one of any adjacent slots 27, U1 phase, V1 phase, and W1 phase are shifted by an electric angle of 20° to 40° from U2 phase, V2 phase, and W2 phase upon driving, and a slot opening width Ws of a stator iron core 22 is set to satisfy Ws/(2πRs/Ns)≦0.15, where Rs is an inner radius of the stator iron core and Ns is a slot number of the stator iron core.

    摘要翻译： 提供了实现齿槽转矩和转矩波动的减小的永磁电动机，以及减小扭矩和扭矩波动的小型化和重量减少。 当两组三相电枢绕组被限定为使得第一电枢绕组30-1对应于U1相位，V1相位和W1相位，而第二电枢绕组30-2对应于U2相位，V2相位和W2相位 U1相位设置在多个槽27的任意相邻槽中，或者U1相和U2相中的至少一个在任意相邻的槽27之一中设置，U1相，V1相和W1相位移动 与U2相，V2相和W2相的电角度为20°至40°，定子铁芯22的槽口宽度Ws设定为满足Ws /（2πRs/ Ns）≤0.15，其中Rs 是定子铁心的内半径，Ns是定子铁芯的槽数。

    Rotary electric machine
    7.
    发明授权
    Rotary electric machine 有权
    旋转电机

    公开(公告)号：US09240707B2

    公开(公告)日：2016-01-19

    申请号：US13611402

    申请日：2012-09-12

    申请人： Ryuichi Takiguchi ,  Yuji Takizawa ,  Yu Hirotani ,  Satoru Akutsu ,  Masatsugu Nakano ,  Tetsuya Iwata

    发明人： Ryuichi Takiguchi ,  Yuji Takizawa ,  Yu Hirotani ,  Satoru Akutsu ,  Masatsugu Nakano ,  Tetsuya Iwata

    IPC分类号： H02K3/12 ,  H02K3/28

    CPC分类号： H02K3/12 ,  H02K3/28

    摘要： A coil is configured so that: N conductor wires of wave windings each divided at at least two positions in a circumferential direction are provided in one of a plurality of slots; within a unit of the divided wave windings in which conduction is made, the N conductor wires are connected in one of series and parallel to each other at division positions located at substantially the same circumferential position of conductor-wire end portions; division units of the divided wave windings are connected in series to each other, and a total number of series turns of the series-connected division units of the each phase is a predetermined number of series turns, which does not exceed an upper limit value of a terminal voltage of the rotary electric machine; and the series-connected division units of the each phase have the same total number of series turns.

    摘要翻译： 线圈被构造成使得：在多个槽中的一个槽中设置有在圆周方向上至少两个位置分割的波形绕组的N根导线; 在进行导通的分波绕组的单位内，N导线在导体线端部的大致相同的圆周位置处的分割位置处以串联并联的方式连接; 分波绕组的分割单元彼此串联连接，并且每相的串联分割单元的串联匝数是预定数量的串联匝数，其不超过 旋转电机的端电压; 每相的串联分割单元具有相同的串联总数。

    Rotary electric machine
    8.
    发明授权
    Rotary electric machine 有权
    旋转电机

    公开(公告)号：US08829758B2

    公开(公告)日：2014-09-09

    申请号：US13614596

    申请日：2012-09-13

    申请人： Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi ,  Hiroko Ueyama ,  Satoru Akutsu ,  Masatsugu Nakano ,  Tetsuya Iwata

    发明人： Yuji Takizawa ,  Yu Hirotani ,  Ryuichi Takiguchi ,  Hiroko Ueyama ,  Satoru Akutsu ,  Masatsugu Nakano ,  Tetsuya Iwata

    IPC分类号： H02K1/27

    CPC分类号： H02K1/2773

    摘要： Provided is a rotary electric machine, including: a stator; and a rotor provided on the stator so as to be rotatable about a rotation shaft, in which the rotor includes, at an outer circumference thereof, magnetic poles arranged so as to have different polarities alternately, the magnetic poles being formed of a rotor core in which electromagnetic steel plates are stacked, the magnetic poles being excited by permanent magnets which are housed in gaps disposed at an outer circumferential part of the rotor core, and in which the rotor core includes, at an inner circumferential part thereof, in the same stack plane: a short circuit magnetic path connecting magnetic pole pieces which form the magnetic poles; and a protruding portion held in contact with the permanent magnets, which is positioned between magnetic pole pieces which are not connected to the short circuit magnetic path.

    摘要翻译： 提供一种旋转电机，包括：定子; 以及转子，其设置在所述定子上以能够围绕其旋转轴旋转的转子，所述转子在其外周包括交替设置为具有不同极性的磁极，所述磁极由转子芯形成， 这些电磁钢板堆叠在一起，磁极被永久磁铁激励，永磁体容纳在设置在转子芯的外圆周部分的间隙中，转子芯在其内圆周部分处于相同的堆叠 平面：连接形成磁极的磁极片的短路磁路; 以及与永磁体保持接触的突出部分，该永磁体位于不连接到短路磁路的磁极片之间。

    Brushless motor, external AC voltage source, and electric power steering device
    10.
    发明授权
    Brushless motor, external AC voltage source, and electric power steering device 有权
    无刷电机，外部交流电压源和电动助力转向装置

    公开(公告)号：US09331623B2

    公开(公告)日：2016-05-03

    申请号：US14369828

    申请日：2013-01-11

    申请人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    发明人： Yu Hirotani ,  Ryuichi Takiguchi ,  Yuji Takizawa ,  Tetsuya Kojima ,  Masatsugu Nakano ,  Satoru Akutsu

    IPC分类号： H02P27/00 ,  H02P25/02 ,  B62D5/04

    CPC分类号： H02P25/026 ,  B62D5/046 ,  H02P2207/05

    摘要： The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive method for a brushless motor. The brushless motor includes an armature constituted by an armature core having armature windings of a plurality of phases, and a field pole constituted by a field pole core having a plurality of permanent magnets. A voltage, in which at least a 5th order harmonic component is superimposed on a 1st order fundamental wave of a voltage under predetermined phase difference condition and amplitude condition in order to increase a 1st order fundamental wave peak of the applied voltage over an applied voltage peak, is applied to the armature windings.

    摘要翻译： 本发明提供一种无刷电动机，其中可以提高电压利用率，从而可以提高电动机的转矩和输出，并且还提供了一种用于无刷电动机的驱动方法。 无刷电动机包括由具有多相电枢绕组的电枢铁心构成的电枢和由具有多个永久磁铁的场极铁芯构成的场极。 在预定的相位差条件和振幅条件下，在电压的1阶基波上叠加有至少5次谐波分量的电压，以便在施加的电压峰值上增加施加电压的1阶基波峰值 ，被施加到电枢绕组。