公开(公告)号：US08541965B2

公开(公告)日：2013-09-24

申请号：US12935774

申请日：2009-03-30

Applicant: Takeshi Ueda ,  Yuji Kariatsumari ,  Shigeki Nagase ,  Noboru Niguchi ,  Hiroshi Sumasu

Inventor： Takeshi Ueda ,  Yuji Kariatsumari ,  Shigeki Nagase ,  Noboru Niguchi ,  Hiroshi Sumasu

IPC: H02P6/08

CPC classification number: B62D5/046 ,  H02P21/0089 ,  H02P21/06 ,  H02P29/032

Abstract: A command current setting portion has a target value corrector that calculates d-axis and q-axis current command values idc, iqc that are to be supplied to an open-loop controller, based on d-axis and q-axis current target values id*, iq*. When d-axis and q-axis voltage target value vd*, vq* calculated from the d-axis and q-axis current target values id*, iq* by the motor circuit equations exceed a voltage limit, this target value corrector 26 corrects the d-axis and q-axis current target values id*, iq* by the field weakening control such that d-axis and q-axis voltages vd, vq and d-axis and q-axis currents id, iq satisfy √(vd2+vq2)≦Vlim and √(id2+iq2)≦Ilim respectively. The d-axis and q-axis current command values idc, iqc are obtained by this correction.

Abstract translation: 指令电流设定部具有基于d轴和q轴电流目标值id来计算要提供给开环控制器的d轴和q轴电流指令值idc，iqc的目标值校正部 *，iq *。 当通过电动机电路方程从d轴和q轴电流目标值id *，iq *计算的d轴和q轴电压目标值vd *，vq *超过电压限制时，该目标值校正器26校正 通过弱磁控制使d轴和q轴电流目标值id *，iq *使得d轴和q轴电压vd，vq和d轴和q轴电流id，iq满足√（vd2 + vq2）@Vlim和√（id2 + iq2）@Ilim。 通过该校正获得d轴和q轴电流指令值idc，iqc。

公开(公告)号：US20070272472A1

公开(公告)日：2007-11-29

申请号：US11754047

申请日：2007-05-25

Applicant: Ken Matsubara ,  Noboru Niguchi ,  Naotake Kanda ,  Toshimasa Soku

Inventor： Ken Matsubara ,  Noboru Niguchi ,  Naotake Kanda ,  Toshimasa Soku

IPC: B62D5/04

CPC classification number: B62D5/0403 ,  H02K5/15

Abstract: The invention provides a motor including: a cylindrical motor case having a bottom that supports an outer circumferential surface of a stator core by an inner circumferential surface thereof; and a bracket that supports an output shaft side bearing and closes an opening of the motor case; wherein the stator core is press-fitted into the motor case from the opening such that a part of the stator core is exposed from the motor case, and a part of the stator core that is not press-fitted to the motor case forms a sliding fitting wall capable of providing a sliding fitting connection with the bracket.

Abstract translation: 本发明提供一种电动机，包括：圆筒形电动机壳体，具有通过其内周面支撑定子铁心的外周面的底部; 以及支撑输出轴侧轴承并关闭电动机壳体的开口的支架; 其特征在于，所述定子铁心从所述开口被压入所述电动机壳体，使得所述定子铁芯的一部分从所述电动机壳体露出，并且所述定子铁芯的未被压配合到所述电动机壳体的部分形成滑动 配合壁能够提供与支架的滑动配合连接。

公开(公告)号：US08739919B2

公开(公告)日：2014-06-03

申请号：US11754047

申请日：2007-05-25

Applicant: Ken Matsubara ,  Noboru Niguchi ,  Naotake Kanda ,  Toshimasa Soku

Inventor： Ken Matsubara ,  Noboru Niguchi ,  Naotake Kanda ,  Toshimasa Soku

IPC: B62D5/04

CPC classification number: B62D5/0403 ,  H02K5/15

Abstract: The invention provides a motor including: a cylindrical motor case having a bottom that supports an outer circumferential surface of a stator core by an inner circumferential surface thereof; and a bracket that supports an output shaft side bearing and closes an opening of the motor case; wherein the stator core is press-fitted into the motor case from the opening such that a part of the stator core is exposed from the motor case, and a part of the stator core that is not press-fitted to the motor case forms a sliding fitting wall capable of providing a sliding fitting connection with the bracket.

Abstract translation: 本发明提供一种电动机，包括：圆筒形电动机壳体，具有通过其内周面支撑定子铁心的外周面的底部; 以及支撑输出轴侧轴承并关闭电动机壳体的开口的支架; 其特征在于，所述定子铁心从所述开口被压入所述电动机壳体，使得所述定子铁芯的一部分从所述电动机壳体露出，并且所述定子铁芯的未被压配合到所述电动机壳体的部分形成滑动 配合壁能够提供与支架的滑动配合连接。

公开(公告)号：US07667364B2

公开(公告)日：2010-02-23

申请号：US12174851

申请日：2008-07-17

Applicant: Noboru Niguchi ,  Masaru Horikawa

Inventor： Noboru Niguchi ,  Masaru Horikawa

IPC: H02K21/12 ,  H02K1/00

CPC classification number: H02K1/278 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/06

Abstract: A brushless motor includes a stator and a rotor. The stator includes an annular stator core having teeth arranged with a spacing in a circumferential direction of the annular stator core; and coils wound around the teeth respectively. The rotor includes a rotor core and magnetic poles of segment magnets arranged annularly along a circumferential direction of the rotor core. The segment magnets are stacked at a plurality of stages in an axial direction of the rotor core. A length direction of each of the segment magnets is parallel with the axial direction of the rotor core. The following expression is satisfied: (2×β/P)+θ

Abstract translation: 无刷电动机包括定子和转子。 所述定子包括环形定子芯，所述环形定子芯具有沿所述环形定子芯的圆周方向间隔布置的齿; 和缠绕在牙齿上的线圈。 转子包括转子芯和沿着转子芯的圆周方向环状布置的段磁体的磁极。 分段磁体在转子铁心的轴向上以多个级堆叠。 每个分段磁体的长度方向与转子芯的轴向平行。 满足以下表达式：（2×＆bgr; / P）+＆Thetas; <（360 / P）其中P是各级段磁体的磁极数，＆bgr; （电角度）是转子芯体外周面上的有效极角孔径， 是相当于相邻级的段磁体的相应磁极之间的相移角的倾斜角。

公开(公告)号：US07638920B2

公开(公告)日：2009-12-29

申请号：US11753818

申请日：2007-05-25

Applicant: Noboru Niguchi ,  Naotake Kanda

Inventor： Noboru Niguchi ,  Naotake Kanda

IPC: H02K21/12

CPC classification number: H02K21/16 ,  H02K1/148 ,  H02K1/278

Abstract: A brushless motor including a rotor which has ten permanent magnets each containing rare earth neodymium and provided around a rotor yoke and an outside diameter of 45 mm to 55 mm, and a stator which has a stator core having twelve slots and an outside diameter of 75 mm to 85 mm and whose magnetomotive force at maximum current is 700 AT or more. The stator core is configured such that a teeth width b is 0.14 times or more of the outside diameter of the rotor.

Abstract translation: 一种无刷电动机，其具有转子，该转子具有十个永磁体，每个永磁体含有稀土钕，并设置在转子磁轭周围，外径为45mm〜55mm，定子具有十二个槽，外径为75mm mm至85mm，其最大电流下的磁动势为700AT以上。 定子铁心构成为齿宽b为转子外径的0.14倍以上。

公开(公告)号：US20080283331A1

公开(公告)日：2008-11-20

申请号：US12119705

申请日：2008-05-13

Applicant: Kenji HIGASHI ,  Shiro Nakano ,  Kazuya Yoshioka ,  Hirohide Inayama ,  Noboru Niguchi

Inventor： Kenji HIGASHI ,  Shiro Nakano ,  Kazuya Yoshioka ,  Hirohide Inayama ,  Noboru Niguchi

IPC: B62D5/04

CPC classification number: B62D5/0403 ,  H02K7/06 ,  H02K16/02

Abstract: An electric motor provided in a vehicle steering apparatus includes a stator coaxially surrounding a steering shaft, an inner rotor disposed on the inner periphery of the stator, and an outer rotor disposed on the outer periphery of the stator. The facing area between the stator and the rotor can be increased by providing the inner rotor and the outer rotor in the electric motor. Consequently, the electric motor can be miniaturized while a certain output thereof is maintained. The vehicle steering apparatus can be miniaturized by miniaturizing the electric motor.

Abstract translation: 设置在车辆转向装置中的电动机包括同轴地围绕转向轴的定子，设置在定子的内周上的内转子和设置在定子外周的外转子。 通过在电动机中设置内转子和外转子，能够增加定子与转子之间的面对面积。 因此，电动机可以小型化，同时保持其一定的输出。 可以通过使电动马达小型化来使车辆转向装置小型化。

公开(公告)号：US20080017438A1

公开(公告)日：2008-01-24

申请号：US11778789

申请日：2007-07-17

Applicant: Naotake Kanda ,  Ken Matsubara ,  Noboru Niguchi ,  Hidetaka Otsuki

Inventor： Naotake Kanda ,  Ken Matsubara ,  Noboru Niguchi ,  Hidetaka Otsuki

IPC: B62D5/04 ,  H02K15/14 ,  H02K5/06 ,  H02K5/16

CPC classification number: B62D5/0403 ,  H02K3/50 ,  H02K11/225 ,  H02K2203/09

Abstract: In an electric power steering apparatus which includes a brushless motor composed of a cylindrical motor case with a bottom; a bracket for covering an opening of the motor case; an end housing for supporting a non-output-shaft side bearing located on one side; a bus bar housing in a ring shape for storing a plurality of bus bars; and a rotational angle sensor, and drives the brushless motor with a flow of current according to the detected steering torque, the end housing has a cylindrical section with a flange surrounding the end on one side and is inserted into the motor case from the opening until the flange comes into contact with the bottom of the motor case, the bus bar housing is placed to surround the outer circumferential surface of the cylindrical section of the end housing, and the rotational angle sensor is placed in the cylindrical section.

Abstract translation: 在一种电动助力转向装置中，该电动助力转向装置包括由具有底部的圆柱形电动机壳体组成的无刷电动机; 用于覆盖电动机壳体的开口的支架; 用于支撑位于一侧的非输出轴侧轴承的端部壳体; 一个用于存储多个汇流条的环状的汇流条; 和旋转角度传感器，并且根据检测到的转向扭矩以电流流驱动无刷电动机，端部壳体具有圆柱形部分，其具有围绕一端的端部的凸缘，并从开口插入到电动机壳体中，直到 凸缘与电动机壳体的底部接触，汇流条壳体被放置成围绕端部壳体的圆柱形部分的外圆周表面，并且旋转角度传感器被放置在圆柱形部分中。

公开(公告)号：US07902709B2

公开(公告)日：2011-03-08

申请号：US12045240

申请日：2008-03-10

Applicant: Noboru Niguchi

Inventor： Noboru Niguchi

IPC: H02K21/12

CPC classification number: H02K1/2733 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/06

Abstract: A permanent magnet included in a rotor of a brush-less motor is a radial anisotropic magnet in which multi-poles are magnetized in the circumferential direction and is skew magnetized along the axial direction in such a manner that a surface to one end part of an upper side from a central part in the axial direction and a surface to an end part of a lower side from the central part are axially shifted by a predetermined angle in the circumferential direction from each other. In accordance with this skew-magnetization, coggings including irregularly varying components generated in the rotor owing to the three-dimensional shapes of coil ends provided at opposite ends of a tooth 611a for fixing a winding have opposite phases to each other, so that the coggings are cancelled with each other. Accordingly, the coggings can be reduced or cancelled.

Abstract translation: 包括在无刷电动机的转子中的永磁体是径向各向异性磁体，其中多极在圆周方向上被磁化，并且沿着轴向以歪斜的方式磁化，使得至少一个 在轴向方向上的中心部分的上侧和从中心部分的下侧的表面到端部部分在圆周方向上轴向偏移预定的角度。 根据该偏斜磁化，由于设置在用于固定绕组的齿611a的相对端处的线圈端部的三维形状，包括在转子中产生的不规则变化的部件的梳理物具有彼此相反的相位，因此， 相互取消。 因此，可以减少或取消制图。

公开(公告)号：US20110025238A1

公开(公告)日：2011-02-03

申请号：US12935774

申请日：2009-03-30

Applicant: Takeshi Ueda ,  Yuji Kariatsumari ,  Shigeki Nagase ,  Noboru Niguchi ,  Hiroshi Sumasu

Inventor： Takeshi Ueda ,  Yuji Kariatsumari ,  Shigeki Nagase ,  Noboru Niguchi ,  Hiroshi Sumasu

IPC: H02P21/00

CPC classification number: B62D5/046 ,  H02P21/0089 ,  H02P21/06 ,  H02P29/032

Abstract: A command current setting portion has a target value corrector that calculates d-axis and q-axis current command values idc, iqc that are to be supplied to an open-loop controller, based on d-axis and q-axis current target values id*, iq*. When d-axis and q-axis voltage target value vd*, vq* calculated from the d-axis and q-axis current target values id*, iq* by the motor circuit equations exceed a voltage limit, this target value corrector 26 corrects the d-axis and q-axis current target values id*, iq* by the field weakening control such that d-axis and q-axis voltages vd, vq and d-axis and q-axis currents id, iq satisfy √(vd2+vq2)≦Vlim and √(id2+iq2)≦Ilim respectively. The d-axis and q-axis current command values idc, iqc are obtained by this correction.

Abstract translation: 指令电流设定部具有基于d轴和q轴电流目标值id来计算要提供给开环控制器的d轴和q轴电流指令值idc，iqc的目标值校正部 *，iq *。 当通过电动机电路方程从d轴和q轴电流目标值id *，iq *计算的d轴和q轴电压目标值vd *，vq *超过电压限制时，该目标值校正器26校正 通过弱磁控制使d轴和q轴电流目标值id *，iq *使得d轴和q轴电压vd，vq和d轴和q轴电流id，iq满足√（vd2 + vq2）＆nlE; Vlim和√（id2 + iq2）＆nlE; Ilim。 通过该校正获得d轴和q轴电流指令值idc，iqc。

公开(公告)号：US07595577B2

公开(公告)日：2009-09-29

申请号：US11861752

申请日：2007-09-26

Applicant: Noboru Niguchi ,  Hirohide Inayama ,  Naotake Kanda ,  Masaru Horikawa

Inventor： Noboru Niguchi ,  Hirohide Inayama ,  Naotake Kanda ,  Masaru Horikawa

IPC: H02K1/00

CPC classification number: H02K29/03

Abstract: A brushless motor includes an annular stator and a rotor which has a plurality of permanent magnets alternately arranged in circumferential direction on the rotor to form poles and which is disposed within the stator to be rotatable with respect to the stator. The stator includes a cylindrical yoke and a plurality of teeth which are same in size one another, are connected to the yoke to extend therefrom toward the rotor, and are disposed at even interval in the circumferential direction. Width of each of the teeth in the circumferential direction is set to be greater than or at a vicinity of the value which is obtained by dividing outer diameter of the rotor by the number of the teeth and multiplying the result of dividing by π/2.

Abstract translation: 无刷电动机包括环形定子和转子，该转子具有在转子上沿圆周方向交替设置的多个永久磁铁，以形成磁极，并设置在定子内以相对于定子可转动。 定子包括一个圆柱形磁轭和多个彼此大小相同的齿，它们连接到磁轭，从而朝向转子延伸，并且在圆周方向上以均匀间隔设置。 每个齿的圆周方向的宽度被设定为大于或接近通过将转子的外径除以齿数并将乘以除以pi / 2的结果而得到的值。