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    Permanent magnet type rotating electrical machine and electric power steering device
    4.
    发明授权
    Permanent magnet type rotating electrical machine and electric power steering device 有权

    公开(公告)号：US08604658B2

    公开(公告)日：2013-12-10

    申请号：US12741773

    申请日：2008-09-26

    申请人： Masatsugu Nakano ,  Kazuhisa Takashima ,  Satoru Akutsu ,  Yoshihito Asao

    发明人： Masatsugu Nakano ,  Kazuhisa Takashima ,  Satoru Akutsu ,  Yoshihito Asao

    IPC分类号： H02K1/27

    摘要： A permanent magnet type rotating electric machine includes: a rotor including a rotor core having a polygonal shape and a plurality of permanent magnets; and a stator including a stator core and armature windings, in which, when the number of poles is M, the number of slots is N, M permanent magnets are sequentially numbered from first to M-th in a circumferential direction, and a positional shift amount in the circumferential direction from a corresponding one of equiangularly arranged reference positions, each being at the same radial distance from a center of a rotating shaft, for an i-th (i=1, 2, . . . , M) permanent magnet is hi, M unit vectors in total, each being in an angular direction of 2πN(i−1)/M (rad), are defined, and a sum of M vectors obtained by multiplying the unit vectors respectively by the positional shift amount hi is smaller than a maximum value of an absolute value of the positional shift amount hi.

    Permanent magnet rotating electric machine and electric power steering device using the same
    5.
    发明授权
    Permanent magnet rotating electric machine and electric power steering device using the same 有权
    永磁旋转电机及使用其的电动助力转向装置

    公开(公告)号：US08598762B2

    公开(公告)日：2013-12-03

    申请号：US12391573

    申请日：2009-02-24

    申请人： Masatsugu Nakano ,  Kazuhisa Takashima ,  Satoru Akutsu ,  Yoshihito Asao

    发明人： Masatsugu Nakano ,  Kazuhisa Takashima ,  Satoru Akutsu ,  Yoshihito Asao

    IPC分类号： H02K21/16

    CPC分类号： H02K1/278 ,  H02K29/03 ,  H02K2213/03

    摘要： A permanent magnet rotating electric machine includes: a stator including: a stator core having teeth, and an armature winding wound around each of the teeth to configure the multiple phases; and a rotor including a rotor core, and permanent magnets provided in order around the rotor core. The rotor is arranged to be spaced apart from the stator with an air gap therebetween. Each of the permanent magnets has a curved surface opposed to the stator and is configured to satisfy the following relationship: 0.65 ≤ Rm × h ⁢ ⁢ 1 W ⁡ ( h ⁢ ⁢ 1 + g ) ≤ 1.37 where Rm denotes a radius of curvature of the curved surface, h1 denotes a thickness of a central portion of the permanent magnet in the peripheral direction, W denotes a width of the permanent magnet in the peripheral direction, and g denotes an air gap length of the air gap.

    摘要翻译： 一种永磁体旋转电机，其特征在于，包括：定子，其具有：具有齿的定子铁心和缠绕在各齿周围的配置多相的电枢绕组; 以及包括转子铁心的转子和绕转子铁芯的顺序设置的永久磁铁。 转子布置成与定子间隔开，其间具有气隙。 每个永磁体具有与定子相对的弯曲表面，并且被配置为满足以下关系：0.65 <= Rm×h·ug 1 W⁡（h·门格1 + g）<= 1.37其中Rm表示 曲率曲率h1表示永久磁铁在圆周方向上的中心部分的厚度，W表示永久磁铁在圆周方向上的宽度，g表示气隙的气隙长度。

    MOTOR DRIVE DEVICE FOR ELECTRIC POWER STEERING APPARATUS
    6.
    发明申请
    MOTOR DRIVE DEVICE FOR ELECTRIC POWER STEERING APPARATUS 有权
    用于电动转向装置的电动机驱动装置

    公开(公告)号：US20130300222A1

    公开(公告)日：2013-11-14

    申请号：US13979920

    申请日：2011-05-20

    申请人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao

    发明人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao

    IPC分类号： H02K11/00 ,  H02K5/02 ,  H02K3/50 ,  H02K9/22

    CPC分类号： H02K11/0084 ,  H02K3/50 ,  H02K5/02 ,  H02K7/1166 ,  H02K9/22 ,  H02K11/33 ,  H02K2213/03

    摘要： A motor drive device employed, for example, in an electric power steering apparatus for vehicle, achieves a reduction not only in size but also in vibration and noise at the same time.At least one of a motor drive control unit (30) and a motor (10) is provided with at least two screw holes (53) for fixation to a gear (speed reducer) of an electric power steering apparatus. Let L1 be a maximum value of a distance between center points of the screw holes (53) and L2 be a distance between an end face (D) of a stator iron core (12) in an axial direction on a farther side from the gear and an attachment surface (C) attached to a gear side, then a value of L1 is equal to or greater than a value of L2.

    摘要翻译： 例如，在车辆用电动助力转向装置中使用的电动机驱动装置不仅能够在尺寸上同时降低振动和噪音的降低。 马达驱动控制单元（30）和马达（10）中的至少一个设置有至少两个用于固定到电动助力转向装置的齿轮（减速器）的螺钉孔（53）。 设L1为螺孔53的中心点之间的距离的最大值，L2为定子铁芯（12）的端面（D）与齿轮 和附接到齿轮侧的附接表面（C），则L1的值等于或大于L2的值。

    Motor drive device for electric power steering apparatus
    8.
    发明授权
    Motor drive device for electric power steering apparatus 有权
    电动助力转向装置用电动机驱动装置

    公开(公告)号：US09088196B2

    公开(公告)日：2015-07-21

    申请号：US13979920

    申请日：2011-05-20

    申请人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao

    发明人： Masatsugu Nakano ,  Satoru Akutsu ,  Yoshihito Asao

    IPC分类号： H02K11/00 ,  H02K9/22 ,  H02K5/02 ,  H02K3/50 ,  H02K7/116

    CPC分类号： H02K11/0084 ,  H02K3/50 ,  H02K5/02 ,  H02K7/1166 ,  H02K9/22 ,  H02K11/33 ,  H02K2213/03

    摘要： A motor drive device employed, for example, in an electric power steering apparatus for vehicle, achieves a reduction not only in size but also in vibration and noise at the same time.At least one of a motor drive control unit (30) and a motor (10) is provided with at least two screw holes (53) for fixation to a gear (speed reducer) of an electric power steering apparatus. Let L1 be a maximum value of a distance between center points of the screw holes (53) and L2 be a distance between an end face (D) of a stator iron core (12) in an axial direction on a farther side from the gear and an attachment surface (C) attached to a gear side, then a value of L1 is equal to or greater than a value of L2.

    摘要翻译： 例如，在车辆用电动助力转向装置中使用的电动机驱动装置不仅能够在尺寸上同时降低振动和噪音的降低。 马达驱动控制单元（30）和马达（10）中的至少一个设置有至少两个用于固定到电动助力转向装置的齿轮（减速器）的螺钉孔（53）。 设L1为螺孔53的中心点之间的距离的最大值，L2为定子铁芯（12）的端面（D）与齿轮 和附接到齿轮侧的附接表面（C），则L1的值等于或大于L2的值。

    PERMANENT MAGNET MOTOR
    9.
    发明申请
    PERMANENT MAGNET MOTOR 有权
    永磁电机

    公开(公告)号：US20140145547A1

    公开(公告)日：2014-05-29

    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： H02K1/16

    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 在驱动时与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 /（2＆pgr; Rs / Ns）＆nlE; 0.15 其中Rs是定子铁芯的内半径，Ns是定子铁芯的槽数。