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21. 发明授权

US06891365B2 Rotation angle detection device 有权
公开(公告)号：US06891365B2
公开(公告)日：2005-05-10
申请号：US10270739
申请日：2002-10-16
申请人： Masatsugu Nakano , Yukari Toide , Satoru Akutsu
发明人： Masatsugu Nakano , Yukari Toide , Satoru Akutsu
IPC分类号： G01D5/245 , B62D5/04 , G01B7/30 , G01D5/12 , G01D5/20 , G01N27/72 , H02K24/00
CPC分类号： G01D5/2046
摘要： A highly accurate rotation angle detection device is realized by correcting a detecting position error caused by a machining error such as deterioration of roundness of an internal diameter of a stator. The rotation angle detection device is provided with a stator (12), which is provided with an exciting winding of one phase and two-phase output windings, and a rotor (13) having salient poles, in which the stator (12) has a plurality of teeth (11), the two-phase output windings are wound around the plurality of teeth, and the plurality of teeth include teeth for which the number of turns of the output windings is N and at least one of teeth for which the number of turns of the output windings is N±m (it is assumed that N and m are positive integers and N>m) and teeth for which the number of turns is m.

22. 发明授权

US09627944B2 Electric drive apparatus 有权
公开(公告)号：US09627944B2
公开(公告)日：2017-04-18
申请号：US14410923
申请日：2012-10-01
申请人： Masatsugu Nakano , Satoru Akutsu , Isao Sonoda , Kohei Ushio , Yoshihito Asao
发明人： Masatsugu Nakano , Satoru Akutsu , Isao Sonoda , Kohei Ushio , Yoshihito Asao
IPC分类号： H02K11/00 , H02K29/08 , H02K11/33 , H02K11/215
CPC分类号： H02K11/33 , H02K11/215 , H02K29/08 , H02K2211/03
摘要： Provided is an electric drive apparatus in which a detected portion (10) of a rotation angle sensor is disposed at an end of a shaft (7) of a motor, and a sensor portion (300) as a detection portion of the rotation angle sensor is disposed coaxially with the rotating axis of the shaft. In a control unit (200), an inverter circuit portion with a drive element (SW) for driving the motor, and a control substrate (17) which is separate from the sensor portion and controls the output of the inverter circuit portion are disposed. The sensor portion and the control substrate are electrically connected, with the control substrate disposed along a plane perpendicular to the rotating axis of the shaft.

23. 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

24. 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。

25. 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。

26. 发明授权

US08427142B2 Rotation angle detecting device 有权
标题翻译：旋转角度检测装置
公开(公告)号：US08427142B2
公开(公告)日：2013-04-23
申请号：US12994772
申请日：2009-05-19
申请人： Masatsugu Nakano , Shinsuke Henmi , Satoru Akutsu
发明人： Masatsugu Nakano , Shinsuke Henmi , Satoru Akutsu
IPC分类号： G01B7/30
CPC分类号： G01D5/2046
摘要： Provided is a rotation angle detecting device with high detection accuracy, which can be structured with a small number of teeth even if a shaft angle multiplier increases, thus enhancing winding workability and becoming suitable for mass production. The rotation angle detecting device includes: a stator formed of an iron core with teeth, the stator including: an exciting winding of one phase or more; and output windings of two phases or more; and a rotor with a salient pole, in which numbers of turns of the output windings of the two phases each have a value obtained by a function containing a sum or a difference between a sine wave of an order equal to an absolute value of a sum of a number of the salient poles and a number of the pole pairs, and a sine wave of an order equal to an integer that is different from an absolute value of the number of the pole pairs of the exciting winding and different from an absolute value of a difference obtained by subtracting the number of the salient poles from the number of the pole pairs.
摘要翻译：本发明提供一种具有高检测精度的旋转角度检测装置，即使轴角倍增器增加，也能够以少量的齿构成，从而提高卷绕加工性，适合批量生产。所述旋转角度检测装置包括：定子，由具有齿的铁芯构成，所述定子包括：一相以上的励磁绕组; 并输出两相以上的绕组; 以及具有凸极的转子，其中两相的输出绕组的匝数各自具有通过包含等于等于绝对值之和的正弦波之和或之和的函数而获得的值多个极点和多个极对的正弦波，以及等于与励磁绕组的极对数的绝对值不同的绝对值的整数的正弦波通过从极数的数目减去突出极数而得到的差。

27. 发明申请

US20110074400A1 ROTATION ANGLE DETECTING DEVICE 有权
标题翻译：旋转角度检测装置
公开(公告)号：US20110074400A1
公开(公告)日：2011-03-31
申请号：US12994772
申请日：2009-05-19
申请人： Masatsugu Nakano , Shinsuke Henmi , Satoru Akutsu
发明人： Masatsugu Nakano , Shinsuke Henmi , Satoru Akutsu
IPC分类号： G01B7/30
CPC分类号： G01D5/2046
摘要： Provided is a rotation angle detecting device with high detection accuracy, which can be structured with a small number of teeth even if a shaft angle multiplier increases, thus enhancing winding workability and becoming suitable for mass production. The rotation angle detecting device includes: a stator formed of an iron core with teeth, the stator including: an exciting winding of one phase or more; and output windings of two phases or more; and a rotor with a salient pole, in which numbers of turns of the output windings of the two phases each have a value obtained by a function containing a sum or a difference between a sine wave of an order equal to an absolute value of a sum of a number of the salient poles and a number of the pole pairs, and a sine wave of an order equal to an integer that is different from an absolute value of the number of the pole pairs of the exciting winding and different from an absolute value of a difference obtained by subtracting the number of the salient poles from the number of the pole pairs.
摘要翻译：本发明提供一种具有高检测精度的旋转角度检测装置，即使轴角倍增器增加，也能够以少量的齿构成，从而提高卷绕加工性，适合批量生产。所述旋转角度检测装置包括：定子，由具有齿的铁芯构成，所述定子包括：一相以上的励磁绕组; 并输出两相以上的绕组; 以及具有凸极的转子，其中两相的输出绕组的匝数各自具有通过包含等于等于绝对值之和的正弦波之和或之和的函数而获得的值多个极点和多个极对的正弦波，以及等于与励磁绕组的极对数的绝对值不同的绝对值的整数的正弦波通过从极数的数目减去突出极数而得到的差。

28. 发明申请

US20100244611A1 PERMANENT-MAGNETIC TYPE ROTARY ELECTRIC MACHINE 有权
标题翻译：永磁式旋转电机
公开(公告)号：US20100244611A1
公开(公告)日：2010-09-30
申请号：US12540112
申请日：2009-08-12
申请人： Satoru Akutsu , Hideya Nishikawa , Yoshihito Asao , Masatsugu Nakano
发明人： Satoru Akutsu , Hideya Nishikawa , Yoshihito Asao , Masatsugu Nakano
IPC分类号： H02K1/06
CPC分类号： H02K29/03 , H02K1/278 , H02K21/16 , H02K2201/06
摘要： A permanent-magnetic type rotary electric machine includes a stator having teeth that are arranged in the peripheral direction thereof and around which armature windings of plural phases are wound, and a rotor having plural permanent magnets arranged so that the poles of the permanent magnets are alternately different in the peripheral direction thereof, higher harmonic waves being contained in a no-load induced voltage waveform. A (6p−1)-th higher harmonic wave and a (6p−1)-th higher harmonic wave (p represents a positive integer) when an electrical angle of 360° is set as a fundamental wave in the no-load induced voltage waveform are made substantially coincident with each other in amplitude and phase.
摘要翻译：一种永久磁铁式旋转电机，其特征在于，具有沿周向配置有齿的绕组的多个电枢绕组绕组的定子，具有多个永久磁铁的转子，使永久磁铁的极交替地配置在其周向不同，高次谐波包含在无负载感应电压波形中。当空载感应电压为360°的电角设定为基波时，A（6p-1）高次谐波和（6p-1）高次谐波（p表示正整数）波形在振幅和相位上彼此基本一致。

29. 发明申请

US20050168217A1 Rotation angle detection device 有权
标题翻译：旋转角度检测装置
公开(公告)号：US20050168217A1
公开(公告)日：2005-08-04
申请号：US11088889
申请日：2005-03-25
申请人： Masatsugu Nakano , Yukari Toide , Satoru Akutsu
发明人： Masatsugu Nakano , Yukari Toide , Satoru Akutsu
IPC分类号： G01D5/245 , B62D5/04 , G01B7/30 , G01D5/12 , G01D5/20 , G01N27/72 , H02K24/00
CPC分类号： G01D5/2046
摘要： A highly accurate rotation angle detection device is realized by correcting a detecting position error caused by a machining error such as deterioration of roundness of an internal diameter of a stator. The rotation angle detection device is provided with a stator (12), which is provided with an exciting winding of one phase and two-phase output windings, and a rotor (13) having salient poles, in which the stator (12) has a plurality of teeth (11), the two-phase output windings are wound around the plurality of teeth, and the plurality of teeth include teeth for which the number of turns of the output windings is N and at least one of teeth for which the number of turns of the output windings is N±m (it is assumed that N and m are positive integers and N>m) and teeth for which the number of turns is m.
摘要翻译：通过校正由诸如定子的内径的圆度的劣化的加工误差引起的检测位置误差来实现高精度的旋转角度检测装置。旋转角度检测装置设置有定子（12），其设置有一相和两相输出绕组的励磁绕组，以及具有凸极的转子（13），其中定子（12）具有多个齿（11），两相输出绕组缠绕在多个齿上，并且多个齿包括输出绕组匝数为N的齿和至少一个齿数输出绕组的匝数为N±m（假定N和m为正整数，N> m）和匝数为m的齿。

30. 发明申请

US20140204473A1 OPTICAL SYSTEM WITH CATADIOPTRIC OPTICAL SUBSYSTEM 有权
标题翻译：光学系统与光电子系统
公开(公告)号：US20140204473A1
公开(公告)日：2014-07-24
申请号：US14124646
申请日：2012-06-08
申请人： Masatsugu Nakano , Jose Manuel Sasian-Alvarado
发明人： Masatsugu Nakano , Jose Manuel Sasian-Alvarado
IPC分类号： G02B17/08
CPC分类号： G02B17/0856 , G02B17/0808 , G03F7/70225 , G03F7/70241 , G03F7/70275
摘要： An optical system to form an image on an image plane includes, a catadioptric optical subsystem configured to collect light from an object plane; and a refractive optical subsystem configured to form the image on the image plane, the catadioptric and refractive optical subsystems being arranged in order from the object plane to the image plane along an optical axis of the optical system. A baffle to shut off light traveling toward the image plane without being reflected by the catadioptric optical subsystem is placed in the optical system, in order to form a shielded portion in a center of an exit pupil plane of the optical system, and the catadioptric optical subsystem includes a partially transparent surface around the optical axis of the optical system so that transmissivity of a region, other than the shielded portion, at the exit pupil plane varies in a radial direction of the exit pupil plane.
摘要翻译：用于在图像平面上形成图像的光学系统包括：被配置为从物平面收集光的反折射光学子系统; 以及折射光学子系统，被配置为在所述图像平面上形成所述图像，所述反射折射和折射光学子系统沿着所述光学系统的光轴从所述物体平面到所述像平面排列。在光学系统中放置用于切断朝向图像平面行进而不被反射折射光学子系统反射的光的挡板，以便在光学系统的出射光瞳平面的中心形成屏蔽部分，并且反射折射光学子系统包括围绕光学系统的光轴的部分透明的表面，使得除了出射光瞳面之外的屏蔽部分以外的区域的透射率在出射光瞳平面的径向方向上变化。

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