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1. 发明申请

US20120139372A1 PERMANENT MAGNET ROTATING ELECTRICAL MACHINE AND ELECTRIC POWER STEERING APPARATUS USING THE SAME 有权
标题翻译：永久磁铁旋转电机及电动转向装置
公开(公告)号：US20120139372A1
公开(公告)日：2012-06-07
申请号：US13390305
申请日：2009-11-24
申请人： Masatsugu Nakano , Toshihiro Matsunaga , Kazuhisa Takashima , Satoru Akutsu , Yusuke Morita
发明人： Masatsugu Nakano , Toshihiro Matsunaga , Kazuhisa Takashima , Satoru Akutsu , Yusuke Morita
IPC分类号： H02K21/12 , H02K7/116
CPC分类号： H02K1/148 , H02K29/03 , H02K2213/03
摘要： A compact, light permanent magnet motor with low torque pulsations is obtained by reducing a cogging torque resulting from variations at the end of a rotor, such as an error in attachment position and a variation in magnet characteristic of the permanent magnets.A permanent magnet rotating electrical machine includes a rotor having a rotor core and plural magnetic poles formed of permanent magnets provided to the rotor core, and a stator having plural teeth opposing the plural magnetic poles, a stator core provided with slots in which to store an armature winding wire wound around the teeth, and supplemental grooves provided to the teeth in portions opposing the rotor in an axial direction of the stator core. The permanent magnet rotating electrical machine is configured in such a manner that the supplemental grooves are provided to the stator in a part in the axial direction of the stator core, and that let P be the number of the magnetic poles (the number of poles) and S be the number of the slots (the number of slots), then a relation, 0.75
摘要翻译：通过减小由于转子端部的变化而导致的齿槽转矩，例如安装位置的误差和永久磁铁的磁铁特性的变化，可获得具有低转矩脉动的小型轻型永磁电动机。一种永久磁铁式旋转电机，具有：转子铁心和设置在转子铁芯上的永久磁铁形成的多个磁极的转子，以及具有与上述多个磁极相对的多个齿的定子，具有槽，缠绕在齿上的电枢绕组线，以及在定子芯的轴向方向上与转子相对的部分设置到齿的补充槽。永久磁铁旋转电机的构成是，在定子铁芯的轴向的一部分中，向定子设置补充槽，使P为数量的磁极（极数）并且S是时隙的数量（时隙数），则建立0.75

2. 发明申请

US20130154436A1 PERMANENT MAGNET TYPE ROTARY ELECTRIC MACHINE AND ELECTRIC POWER STEERING APPARATUS USING THE SAME 有权
公开(公告)号：US20130154436A1
公开(公告)日：2013-06-20
申请号：US13697064
申请日：2010-09-06
申请人： Masatsugu Nakano , Toshihiro Matsunaga , Yusuke Morita , Misa Nakayama , Kazuhisa Takashima , Satoru Akutsu
发明人： Masatsugu Nakano , Toshihiro Matsunaga , Yusuke Morita , Misa Nakayama , Kazuhisa Takashima , Satoru Akutsu
IPC分类号： H02K1/16
CPC分类号： H02K1/16 , B62D5/046 , H02K1/146 , H02K1/148 , H02K1/276 , H02K1/278 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： Not less than two regions different in magnetic circuit design are provided in a rotational axis direction of the rotor (30), the regions being different by changing a cross-sectional shape in the rotational axis direction in a cross-section perpendicular to a rotational shaft (10) of the rotor (30) having the permanent magnets (1) and the rotor core (2); the supplemental grooves (5) are provided in axial partial regions of each of the teeth (7) of the stator core (3); and the region in which the supplemental groove (5) is provided is each partial region for each region facing a region same in magnetic circuit design of the rotor (30). This enables to reduce cogging torque generated by variations on the rotor side.

3. 发明授权

US09350204B2 Permanent magnet rotating electrical machine and electric power steering apparatus having a stator core with supplemental grooves 有权
标题翻译：永磁旋转电机和电动助力转向装置具有带补充槽的定子芯
公开(公告)号：US09350204B2
公开(公告)日：2016-05-24
申请号：US13390305
申请日：2009-11-24
申请人： Masatsugu Nakano , Toshihiro Matsunaga , Kazuhisa Takashima , Satoru Akutsu , Yusuke Morita
发明人： Masatsugu Nakano , Toshihiro Matsunaga , Kazuhisa Takashima , Satoru Akutsu , Yusuke Morita
IPC分类号： H02K1/06 , H02K1/26 , H02K1/14 , H02K29/03
CPC分类号： H02K1/148 , H02K29/03 , H02K2213/03
摘要： A compact, light permanent magnet motor with low torque pulsations is obtained by reducing a cogging torque resulting from variations at the end of a rotor, such as an error in attachment position and a variation in magnet characteristic of the permanent magnets. A permanent magnet rotating electrical machine includes a rotor and a stator, a stator core provided with slots in which to store an armature winding wire wound around the teeth, and supplemental grooves provided to the teeth in portions opposing the rotor in an axial direction of the stator core. The supplemental grooves are provided to the stator in a part in the axial direction of the stator core, and that let P be the number of the magnetic poles (the number of poles) and S be the number of the slots (the number of slots), then a relation, 0.75
摘要翻译：通过减小由于转子端部的变化而导致的齿槽转矩，例如安装位置的误差和永久磁铁的磁铁特性的变化，可获得具有低转矩脉动的小型轻型永磁电动机。一种永磁体旋转电机，包括转子和定子，定子铁心设置有用于存储缠绕在齿周围的电枢绕组线的槽，以及在该转子的轴向方向上与转子相对的部分设置的齿槽的补充槽定子铁芯。辅助槽在定子铁芯的轴向部分设置在定子上，使P为磁极数（极数），S为槽数（槽数），则建立0.75

4. 发明授权

US09172278B2 Permanent magnet type rotary electric machine and electric power steering apparatus using the same 有权
标题翻译：永磁式旋转电机及使用其的电动助力转向装置
公开(公告)号：US09172278B2
公开(公告)日：2015-10-27
申请号：US13697064
申请日：2010-09-06
申请人： Masatsugu Nakano , Toshihiro Matsunaga , Yusuke Morita , Misa Nakayama , Kazuhisa Takashima , Satoru Akutsu
发明人： Masatsugu Nakano , Toshihiro Matsunaga , Yusuke Morita , Misa Nakayama , Kazuhisa Takashima , Satoru Akutsu
IPC分类号： H02K1/16 , H02K1/27 , H02K1/14 , H02K21/16 , H02K29/03
CPC分类号： H02K1/16 , B62D5/046 , H02K1/146 , H02K1/148 , H02K1/276 , H02K1/278 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： Not less than two regions different in magnetic circuit design are provided in a rotational axis direction of the rotor (30), the regions being different by changing a cross-sectional shape in the rotational axis direction in a cross-section perpendicular to a rotational shaft (10) of the rotor (30) having the permanent magnets (1) and the rotor core (2); the supplemental grooves (5) are provided in axial partial regions of each of the teeth (7) of the stator core (3); and the region in which the supplemental groove (5) is provided is each partial region for each region facing a region same in magnetic circuit design of the rotor (30). This enables to reduce cogging torque generated by variations on the rotor side.
摘要翻译：在转子（30）的旋转轴线方向上设置不少于两个磁路设计不同的区域，这些区域通过在与旋转轴垂直的截面中改变旋转轴线方向的横截面形状而不同（10）具有永磁体（1）和转子铁心（2）的转子（10）; 所述补充槽（5）设置在所述定子铁心（3）的每个所述齿（7）的轴向部分区域中。并且其中设置有所述补充槽（5）的区域是面对与转子（30）的磁路设计相同的区域的每个区域的每个部分区域。这使得能够减小由转子侧的变化产生的齿槽转矩。

5. 发明授权

US08604658B2 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.

6. 发明授权

US08598762B2 Permanent magnet rotating electric machine and electric power steering device using the same 有权
标题翻译：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。

7. 发明申请

US20100244605A1 PERMANENT MAGNET TYPE ROTATING ELECTRICAL MACHINE AND ELECTRIC POWER STEERING DEVICE 有权
标题翻译：永磁电机类型旋转电机和电动转向装置
公开(公告)号：US20100244605A1
公开(公告)日：2010-09-30
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
CPC分类号： H02K1/278 , B62D5/0403 , H02K1/2746 , H02K21/14 , H02K29/03
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.
摘要翻译：一种永磁式旋转电机，包括：转子，其包括具有多边形的转子芯和多个永磁体; 以及具有定子铁芯和电枢绕组的定子，其中，当极数为M时，槽数为N，M个永久磁铁在圆周方向上从第一到第五个顺序地编号，并且位置偏移对于第i（i = 1,2，...，M）个永久磁铁，从等距配置的基准位置的相应的一个等距离距离旋转轴的中心相同的径向距离是hi，定义了M个单位矢量，每个矢量分别处于2＆pgr; N（i-1）/ M（rad）的角度方向上，并且通过将单位矢量分别乘以位置偏移数量hi小于位置偏移量hi的绝对值的最大值。

8. 发明授权

US08648513B2 Permanent magnet type rotating electrical machine and electric power steering device 有权
标题翻译：永磁式旋转电机和电动助力转向装置
公开(公告)号：US08648513B2
公开(公告)日：2014-02-11
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
CPC分类号： H02K1/278 , B62D5/0403 , H02K1/2746 , H02K21/14 , H02K29/03
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.
摘要翻译：一种永磁式旋转电机，包括：转子，其包括具有多边形的转子芯和多个永磁体; 以及具有定子铁芯和电枢绕组的定子，其中，当极数为M时，槽数为N，M个永久磁铁在圆周方向上从第一到第五个顺序地编号，并且位置偏移对于第i（i = 1,2，...，M）个永久磁铁，从等距配置的基准位置的相应的一个等距离距离旋转轴的中心相同的径向距离是hi，定义总共M个单位矢量，每个向量分别为2piN（i-1）/ M（rad）的角度方向，以及通过将单位矢量分别乘以位置偏移量hi 小于位置偏移量hi的绝对值的最大值。

9. 发明授权

US09054563B2 Motor for electric power steering device 有权
标题翻译：电动助力转向装置用电机
公开(公告)号：US09054563B2
公开(公告)日：2015-06-09
申请号：US13814602
申请日：2011-02-09
申请人： Toshihiro Matsunaga , Yoshihito Asao , Satoru Akutsu , Kazuhisa Takashima
发明人： Toshihiro Matsunaga , Yoshihito Asao , Satoru Akutsu , Kazuhisa Takashima
IPC分类号： H02K5/16 , B62D5/04 , F16C25/08 , F16C27/06 , F16C33/58 , H02K5/173 , H02K29/12 , H02K11/00 , H02K5/24
CPC分类号： H02K5/161 , B62D5/0403 , B62D5/0406 , F16C25/083 , F16C27/066 , F16C33/586 , F16C2326/24 , F16C2380/26 , H02K5/1732 , H02K5/24 , H02K29/12
摘要： A motor for an electric power steering device, includes: a housing side bearing which is placed on the output side of a shaft of a rotor placed in a frame, and is supported by a housing connected to the frame; and a frame side bearing which is placed on the opposite output side of the shaft of the rotor, and is composed of an outer ring and an inner ring supported by the frame. The motor is controlled by an electronic control unit which is coaxially placed with the rotor, the motor including: a bearing box which supports the frame side bearing, and is formed with a closed end section between the closed end section and the side of the frame side bearing; an axial elastic body which is placed on the closed end section of the bearing box, and applies a preload in an axial direction to the outer ring of the frame side bearing; and a radial elastic body which is placed on the outer circumferential side of the outer ring of the frame side bearing, and applies a preload in a direction perpendicular to the axial direction.
摘要翻译：一种用于电动助力转向装置的电动机，包括：壳体侧轴承，其被布置在放置在框架中的转子的轴的输出侧，并且由连接到所述框架的壳体支撑; 以及框架侧轴承，其设置在转子的轴的相对的输出侧，并且由外圈和由框架支撑的内圈构成。电动机由与转子同轴放置的电子控制单元控制，电动机包括：支撑框架侧轴承的轴承箱，并且在闭合端部与框架侧面之间形成封闭端部侧轴承轴向弹性体，其被放置在所述轴承箱的封闭端部，并且沿轴向施加预压力到所述框架侧轴承的外圈; 以及径向弹性体，其设置在框架侧轴承的外圈的外周侧，并且沿与轴向垂直的方向施加预载荷。

10. 发明申请

US20130140964A1 MOTOR FOR ELECTRIC POWER STEERING DEVICE 有权
标题翻译：电动转向装置用电动机
公开(公告)号：US20130140964A1
公开(公告)日：2013-06-06
申请号：US13814602
申请日：2011-02-09
申请人： Toshihiro Matsunaga , Yoshihito Asao , Satoru Akutsu , Kazuhisa Takashima
发明人： Toshihiro Matsunaga , Yoshihito Asao , Satoru Akutsu , Kazuhisa Takashima
IPC分类号： H02K5/16 , H02K11/00
CPC分类号： H02K5/161 , B62D5/0403 , B62D5/0406 , F16C25/083 , F16C27/066 , F16C33/586 , F16C2326/24 , F16C2380/26 , H02K5/1732 , H02K5/24 , H02K29/12
摘要： A motor for an electric power steering device, includes: a housing side bearing which is placed on the output side of a shaft of a rotor placed in a frame, and is supported by a housing connected to the frame; and a frame side bearing which is placed on the opposite output side of the shaft of the rotor, and is composed of an outer ring and an inner ring supported by the frame. The motor is controlled by an electronic control unit which is coaxially placed with the rotor, the motor including: a bearing box which supports the frame side bearing, and is formed with a closed end section between the closed end section and the side of the frame side bearing; an axial elastic body which is placed on the closed end section of the bearing box, and applies a preload in an axial direction to the outer ring of the frame side bearing; and a radial elastic body which is placed on the outer circumferential side of the outer ring of the frame side bearing, and applies a preload in a direction perpendicular to the axial direction.
摘要翻译：一种用于电动助力转向装置的电动机，包括：壳体侧轴承，其被布置在放置在框架中的转子的轴的输出侧，并且由连接到所述框架的壳体支撑; 以及框架侧轴承，其设置在转子的轴的相对的输出侧，并且由外圈和由框架支撑的内圈构成。电动机由与转子同轴放置的电子控制单元控制，电动机包括：支撑框架侧轴承的轴承箱，并且在封闭端部与框架侧面之间形成封闭端部侧轴承轴向弹性体，其被放置在所述轴承箱的封闭端部，并且沿轴向施加预压力到所述框架侧轴承的外圈; 以及径向弹性体，其设置在框架侧轴承的外圈的外周侧，并且沿与轴向垂直的方向施加预载荷。

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