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公开(公告)号：US07019426B2
公开(公告)日：2006-03-28
申请号：US11055648
申请日：2005-02-11
Applicant: Sadaaki Mori , Hirohide Inayama , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
Inventor： Sadaaki Mori , Hirohide Inayama , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
IPC: H02K21/12
CPC classification number: H02K1/276 , H02K1/2766 , H02K21/14
Abstract: A bridge (8) in conformity with a tooth opening angle of the stator (1) is provided between a permanent magnet (5) and a permanent magnet (5) in a rotor (4), so that a magnetic flux for a reluctance torque is made to pass an inner side of the permanent magnet (5). An opening angle of each of ribs (7) on both sides of the permanent magnet (5) is set to be equal to or smaller than the teeth interval opening angle and equal to or larger than a half thereof. Thereby, reluctance of the rib (7) against a magnetic flux in a circumferential direction is increased and leakage of the magnetic flux of the permanent magnet (5) is prevented.
Abstract translation: 在转子（4）中的永久磁铁（5）和永久磁铁（5）之间设有与定子（1）的齿孔角度一致的桥（8），以使得磁阻转矩 使永磁体（5）的内侧通过。 永磁体（5）的两侧的肋（7）的开口角度被设定为等于或小于齿间隔开度，等于或大于其一半。 由此，肋（7）在圆周方向上的磁通量的磁阻增加，并且防止了永磁体（5）的磁通量的泄漏。
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公开(公告)号：US20050134133A1
公开(公告)日：2005-06-23
申请号：US11055648
申请日：2005-02-11
Applicant: Sadaaki Mori , Hirohide Inayama , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
Inventor： Sadaaki Mori , Hirohide Inayama , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
CPC classification number: H02K1/276 , H02K1/2766 , H02K21/14
Abstract: A bridge (8) in conformity with a tooth opening angle of the stator (1) is provided between a permanent magnet (5) and a permanent magnet (5) in a rotor (4), so that a magnetic flux for a reluctance torque is made to pass an inner side of the permanent magnet (5). An opening angle of each of ribs (7) on both sides of the permanent magnet (5) is set to be equal to or smaller than the teeth interval opening angle and equal to or larger than a half thereof. Thereby, reluctance of the rib (7) against a magnetic flux in a circumferential direction is increased and leakage of the magnetic flux of the permanent magnet (5) is prevented.
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公开(公告)号：US07705494B2
公开(公告)日：2010-04-27
申请号：US11798229
申请日：2007-05-11
Applicant: Hirohide Inayama
Inventor： Hirohide Inayama
IPC: H02K1/14
Abstract: An electric motor includes an annular stator core having a pair of ends opposed to each other in an axial direction, and a coil wound around the stator core. The stator core includes a pair of powder magnetic cores each arranged at the pair of ends and a laminated steel plate arranged between the paired powder magnetic cores. Each of the paired powder magnetic cores includes a section arranged outside the coil in the axial direction.
Abstract translation: 电动机包括：环状定子铁心，其具有在轴向上相对的一对端部，以及绕定子铁心缠绕的线圈。 定子铁芯包括一对分别设置在一对端部的粉末状磁芯和配置在成对的粉末磁芯之间的层压钢板。 每个成对的粉末磁芯包括沿轴向布置在线圈外侧的部分。
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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。
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公开(公告)号：US06885125B2
公开(公告)日：2005-04-26
申请号：US10931421
申请日：2004-09-01
Applicant: Hirohide Inayama , Hideki Jonokuchi , Sadaaki Mori , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
Inventor： Hirohide Inayama , Hideki Jonokuchi , Sadaaki Mori , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
CPC classification number: H02K1/278 , H02K29/03 , H02K2201/06 , Y10T29/49009
Abstract: A brushless DC motor including a stator having plural slots; and a rotor which has plural permanent magnets and is divided into three rotor blocks in a rotation axis direction, the three rotor blocks being layered so that the arrangement angles of the rotor blocks differ from each other by an amount of a mechanical angle in a rotary direction that is equivalent to one third of a pulsation period of cogging torque generated by the rotor and stator. A brushless DC motor including a rotor having plural magnetic poles provided at an equal pitch in a circumferential direction by mounting permanent magnets in magnet mounting holes; and a stator having plural slots arranged at an equal pitch in a circumferential direction. The magnetic poles of the rotor include magnetic poles whose magnet deviation angle formed by the central line of an effective polar opening angle and the central line of the magnet mounting hole is the first angle; and magnetic poles whose magnet deviation angle is the second angle different from the first angle.
Abstract translation: 一种无刷直流电动机，包括具有多个槽的定子; 以及具有多个永久磁铁并沿旋转轴线方向分成三个转子块的转子，所述三个转子块被层叠，使得转子块的配置角度彼此相差一个旋转中的机械角度的量 方向相当于由转子和定子产生的齿槽转矩的脉动周期的三分之一。 一种无刷直流电动机，其包括通过将永磁体安装在磁铁安装孔中而沿圆周方向以等间距设置的多个磁极的转子; 以及具有沿圆周方向等间距排列的多个槽的定子。 转子的磁极包括由有效极性开放角度的中心线和磁体安装孔的中心线形成的磁体偏离角度为第一角度的磁极; 磁极的磁偏离角度与第一角度不同的第二角度。
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Patent Agency Ranking
公开(公告)号：US06867526B2
公开(公告)日：2005-03-15
申请号：US10233656
申请日：2002-09-04
Applicant: Sadaaki Mori , Hirohide Inayama , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
Inventor： Sadaaki Mori , Hirohide Inayama , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
CPC classification number: H02K1/276 , H02K1/2766 , H02K21/14
Abstract: A bridge (8) in conformity with a tooth opening angle of the stator (1) is provided between a permanent magnet (5) and a permanent magnet (5) in a rotor (4), so that a magnetic flux for a reluctance torque is made to pass an inner side of the permanent magnet (5). An opening angle of each of ribs (7) on both sides of the permanent magnet (5) is set to be equal to or smaller than the teeth interval opening angle and equal to or larger than a half thereof. Thereby, reluctance of the rib (7) against a magnetic flux in a circumferential direction is increased and leakage of the magnetic flux of the permanent magnet (5) is prevented.
Abstract translation: 在转子（4）中的永久磁铁（5）和永久磁铁（5）之间设有与定子（1）的齿孔角度一致的桥（8），以使得磁阻转矩 使永磁体（5）的内侧通过。 永磁体（5）的两侧的肋（7）的开口角度被设定为等于或小于齿间隔开度，等于或大于其一半。 由此，肋（7）在圆周方向上的磁通量的磁阻增加，并且防止了永磁体（5）的磁通量的泄漏。
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公开(公告)号：US20050023927A1
公开(公告)日：2005-02-03
申请号：US10931401
申请日：2004-09-01
Applicant: Hirohide Inayama , Hideki Jonokuchi , Sadaaki Mori , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
Inventor： Hirohide Inayama , Hideki Jonokuchi , Sadaaki Mori , Atsushi Ishihara , Tomofumi Takahashi , Minoru Kitabayashi , Tetsuo Horie
CPC classification number: H02K1/278 , H02K29/03 , H02K2201/06 , Y10T29/49009
Abstract: A brushless DC motor including a stator having plural slots; and a rotor which has plural permanent magnets and is divided into three rotor blocks in a rotation axis direction, the three rotor blocks being layered so that the arrangement angles of the rotor blocks differ from each other by an amount of a mechanical angle in a rotary direction that is equivalent to one third of a pulsation period of cogging torque generated by the rotor and stator. A brushless DC motor including a rotor having plural magnetic poles provided at an equal pitch in a circumferential direction by mounting permanent magnets in magnet mounting holes; and a stator having plural slots arranged at an equal pitch in a circumferential direction. The magnetic poles of the rotor include magnetic poles whose magnet deviation angle formed by the central line of an effective polar opening angle and the central line of the magnet mounting hole is the first angle; and magnetic poles whose magnet deviation angle is the second angle different from the first angle.
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公开(公告)号：US06774521B2
公开(公告)日：2004-08-10
申请号：US10000632
申请日：2001-11-01
Applicant: Hirohide Inayama , Tomofumi Takahashi , Minoru Kitabayashi
Inventor： Hirohide Inayama , Tomofumi Takahashi , Minoru Kitabayashi
IPC: H02K2112
Abstract: In a brushless DC motor constructed by a rotor 2 to which a permanent magnet 3 is attached; and a stator 1 having a plurality of slots, when an effective opening angle of magnetic pole of the rotor 2 that was set to a predetermined opening angle whose base is the rotation axis of the rotor 2 is &thgr;2 and a salient area opening angle of magnetic pole formed within the effective opening angle &thgr;2 of magnetic pole is &thgr;3, the opening angles &thgr;2 and &thgr;3 are set so that cogging torque generated by the effective opening angle &thgr;2 of magnetic pole and cogging torque generated by the salient area opening angle &thgr;3 of magnetic pole are mutually in antiphase. Accordingly, a brushless DC motor capable of reducing cogging torque is realized.
Abstract translation: 在由固定有永磁体3的转子2构成的无刷直流电动机中， 以及具有多个槽的定子1，其中转子2的磁极的有效开度角设定为转子2的旋转轴的基准面为θ2的预定开度角，磁场的显着面积开度为 在磁极的有效开放角度θ2内形成的极点为θ3，打开角度θ2和θ3被设定为使得由磁极的有效开度θ2产生的齿槽转矩和由磁极的显着区域开度θ3产生的齿槽转矩 相互反相。 因此，能够实现减少齿槽转矩的无刷直流电动机。
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9.发明授权公开(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。
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10.发明申请公开(公告)号：US20080073995A1
公开(公告)日：2008-03-27
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。
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