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公开(公告)号：US06404152B1
公开(公告)日：2002-06-11
申请号：US09463654
申请日：2000-01-28
申请人： Takashi Kobayashi , Fumio Tajima , Shoichi Kawamata , Yutaka Matsunobu , Ryoso Masaki , Suetaro Shibukawa , Osamu Koizumi
发明人： Takashi Kobayashi , Fumio Tajima , Shoichi Kawamata , Yutaka Matsunobu , Ryoso Masaki , Suetaro Shibukawa , Osamu Koizumi
IPC分类号： H02P602
摘要： In order to reduce undesired sound caused by circular ring oscillation in the diametric direction of the stator by an electromagnetic force, electromagnetic force drift memory stores a drift information of the electromagnetic force causing the circular ring oscillation of the stator. This electromagnetic force drift information is read out according to the position information &thgr; and is supplied to a correction coefficient generating circuitry. Correction coefficient generating circuitry corrects the amplitude component of the activation current wave from by forming correction coefficient &bgr; (t) of the activation current so as to cancel the electromagnetic force harmonic component in the diametric direction which component is the component of the circular ring oscillation of the stator.
摘要翻译： 电磁力漂移存储器为了通过电磁力减少定子的直径方向的圆环振动引起的不希望的声音，存储导致定子的圆环振荡的电磁力的漂移信息。 根据位置信息θ读出该电磁力漂移信息，并将其提供给校正系数生成电路。 校正系数产生电路通过形成激活电流的校正系数β（t）来校正激活电流波的振幅分量，以抵消直径方向上的电磁力谐波分量，该分量是圆环振荡的分量 定子。
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2.发明授权
公开(公告)号：US6133662A
公开(公告)日：2000-10-17
申请号：US929581
申请日：1997-09-15
申请人： Yutaka Matsunobu , Fumio Tajima , Takashi Kobayashi , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Yutaka Matsunobu , Fumio Tajima , Takashi Kobayashi , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
CPC分类号： H02K1/278 , Y02T10/641
摘要： A permanent magnet electric machine comprises a stator provided with windings and a rotor disposed with an air gap between the stator and the rotor. A plurality of permanent magnets are arranged along and fixed to the circumference of the rotor. The angular circumferential extent of a surface of each permanent magnet facing the stator is determined so that an induced voltage in the machine has a waveform that approximates a sinusoidal waveform, to suppress the peak of the induced voltage.
摘要翻译： 永磁电机包括具有绕组的定子和设置有定子和转子之间的气隙的转子。 多个永久磁铁沿转子的圆周排列并固定。 确定面向定子的每个永磁体的表面的角度圆周范围，使得机器中的感应电压具有接近正弦波形的波形，以抑制感应电压的峰值。
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3.发明授权公开(公告)号：US06239525B1
公开(公告)日：2001-05-29
申请号：US09498030
申请日：2000-02-04
申请人： Yutaka Matsunobu , Fumio Tajima , Takashi Kobayashi , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Yutaka Matsunobu , Fumio Tajima , Takashi Kobayashi , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
IPC分类号： H02K2112
CPC分类号： H02K1/278 , Y02T10/641
摘要： A permanent magnet dynamoelectric rotating machine comprises a stator provided with windings; and a rotor disposed with an air gap between the stator and the rotor, and provided with a plurality of permanent magnets arranged along the circumference of the rotor and fixed to the rotor. The circumferential length of a surface of each permanent magnet facing the stator is determined so that an induced voltage has a waveform approximate to a sinusoidal waveform to suppress the peak of the induced voltage.
摘要翻译： 一种永磁式电动旋转电机，其特征在于，包括：设有绕组的定子; 以及转子，其在定子和转子之间设置有气隙，并且设置有沿着转子的圆周布置并固定到转子的多个永磁体。 确定面对定子的每个永磁体的表面的圆周长度，使得感应电压具有接近正弦波形的波形以抑制感应电压的峰值。
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4.发明授权公开(公告)号：US06661147B2
公开(公告)日：2003-12-09
申请号：US10091514
申请日：2002-03-07
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Takashi Kobayashi
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Takashi Kobayashi
IPC分类号： H02K100
CPC分类号： H02K1/246 , H02K1/276 , H02K21/16 , Y02T10/641
摘要： An rotary electric machine 1 comprises stator 2 having a stator core 4 wounded with stator windings 5 and a rotor 3 having a rotor core 7 rotatable and opposite to the stator core 4 through a gap. The rotor core 4 of the roraty electric machine 1 is composed of a plurality of projecting pole magnetic core portions 73 arranged in a side of the gap and along the circumferential direction and a plurality of rotor yoke portions 76 for forming a magnetic path conducting magnetic fluxes of each of the projecting pole magnetic core portions 73, and the rotor core is divided in the circumferential direction on a unit of each of the projecting pole magnetic core portions 73 and each of the rotor yokes 76 opposite to each of the projecting pole magnetic core portions 73. It is possible to provide a rotary electric machine which is high in material use factor at manufacturing a rotor core and small in size and light in weight, and to provide an electric vehicle using the rotary electric machine.
摘要翻译： 旋转电机1包括具有定子绕组5的定子铁芯4的定子2和具有通过间隙可旋转并与定子铁芯4相对的转子芯7的转子3。 旋转电机1的转子铁心4由沿着圆周方向配置在间隙侧的多个突极极磁心部73和形成磁路导电磁通的多个转子磁轭部76 并且转子芯在圆周方向上分别设置在每个突极极磁芯部73的单元上，并且每个转子轭76与每个突极极芯相对 部分73.可以提供一种在制造转子铁芯并且体积小且重量轻的材料使用系数高的旋转电机，并且使用旋转电机提供电动车辆。
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公开(公告)号：US06452302B1
公开(公告)日：2002-09-17
申请号：US09400437
申请日：1999-09-21
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Takashi Kobayashi
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Takashi Kobayashi
IPC分类号： H02K1906
CPC分类号： H02K1/246 , H02K1/276 , H02K21/16 , Y02T10/641
摘要： An rotary electric machine 1 comprises stator 2 having a stator core 4 wounded with stator windings 5 and a rotor 3 having a rotor core 7 rotatable and opposite to the stator core 4 through a gap. The rotor core 4 of the roraty electric machine 1 is composed of a plurality of projecting pole magnetic core portions 73 arranged in a side of the gap and along the circumferential direction and a plurality of rotor yoke portions 76 for forming a magnetic path conducting magnetic fluxes of each of the projecting pole magnetic core portions 73, and the rotor core is divided in the circumferential direction on a unit of each of the projecting pole magnetic core portions 73 and each of the rotor yokes 76 opposite to each of the projecting pole magnetic core portions 73. It is possible to provide a rotary electric machine which is high in material use factor at manufacturing a rotor core and small in size and light in weight, and to provide an electric vehicle using the rotary electric machine.
摘要翻译： 旋转电机1包括具有定子绕组5的定子铁芯4的定子2和具有通过间隙可旋转并与定子铁芯4相对的转子芯7的转子3。 旋转电机1的转子铁心4由沿着圆周方向配置在间隙侧的多个突极极磁心部73和形成磁路导电磁通的多个转子磁轭部76 并且转子芯在圆周方向上分别设置在每个突极极磁芯部73的单元上，并且每个转子轭76与每个突极极芯相对 部分73.可以提供一种在制造转子铁芯并且体积小且重量轻的材料使用系数高的旋转电机，并且使用旋转电机提供电动车辆。
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6.发明授权
公开(公告)号：US6034459A
公开(公告)日：2000-03-07
申请号：US292750
申请日：1999-04-16
申请人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Kobayashi , Suetaro Shibukawa , Osamu Koizumi
发明人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Kobayashi , Suetaro Shibukawa , Osamu Koizumi
CPC分类号： H02K1/276 , B60L11/1803 , B60L11/1877 , B60L15/20 , B60L2220/16 , B60L2240/423 , B60L2270/145 , Y02T10/641 , Y02T10/645 , Y02T10/7005 , Y02T10/705 , Y02T10/72 , Y02T10/7275
摘要： A permanent magnet type dynamoelectric machine for driving a motor vehicle has a stator with a stator iron core and a rotor with a rotor iron core facing the stator iron core through an air gap permitting rotation of the rotor. A plurality of permanent magnets are embedded along the circumference of the rotor iron core. The mechanical angle .theta. formed about an axial center by the outer circumferential width of a side of each of the permanent magnets which face the stator is set to,.theta.=n.times..tau..sub.s +16/Pwherein .tau..sub.s is the slot pitch of the stator 1 in mechanical angle, P is number of poles of the dynamoelectric machine and n is an integer.
摘要翻译： 用于驱动机动车辆的永磁式电动机具有带有定子铁芯的定子和具有转子铁芯的转子，转子铁芯通过允许转子旋转的气隙面向定子铁心。 多个永磁体沿转子铁芯的圆周嵌入。 将每个永磁体的面向定子的侧面的轴向中心形成的机械角度θ设定为θ= n×τs+ 16 / P，其中τs是定子1的槽间距 在机械角度，P是电动机的极数，n是整数。
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7.发明授权公开(公告)号：US08198775B2
公开(公告)日：2012-06-12
申请号：US12951482
申请日：2010-11-22
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
IPC分类号： H02K1/12
摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
摘要翻译： 在转子的永久磁铁与沿永久磁铁的周向配置的辅助磁极部之间设有磁隙。 获得转子表面的磁通密度分布的逐渐变化，并且抑制齿槽转矩和转矩脉动。 通过获得根据辅助磁极的磁阻转矩，可以获得抑制齿槽转矩和转矩脉动的永久磁铁旋转电机，并且还可以提供具有永磁电动机的电动车辆。
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8.发明授权公开(公告)号：US07808144B2
公开(公告)日：2010-10-05
申请号：US12403244
申请日：2009-03-12
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
IPC分类号： H02K1/27
摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
摘要翻译： 在转子的永久磁铁与沿永久磁铁的周向配置的辅助磁极部之间设有磁隙。 获得转子表面的磁通密度分布的逐渐变化，并且抑制齿槽转矩和转矩脉动。 通过获得根据辅助磁极的磁阻转矩，可以获得抑制齿槽转矩和转矩脉动的永久磁铁旋转电机，并且还可以提供具有永磁电动机的电动车辆。
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公开(公告)号：US20060284508A1
公开(公告)日：2006-12-21
申请号：US11509637
申请日：2006-08-25
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
IPC分类号： H02K21/12
摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
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10.发明授权公开(公告)号：US06876117B2
公开(公告)日：2005-04-05
申请号：US10934625
申请日：2004-09-07
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
摘要翻译： 在转子的永久磁铁与沿永久磁铁的周向配置的辅助磁极部之间设有磁隙。 获得转子表面的磁通密度分布的逐渐变化，并且抑制齿槽转矩和转矩脉动。 通过获得根据辅助磁极的磁阻转矩，可以获得抑制齿槽转矩和转矩脉动的永久磁铁旋转电机，并且还可以提供具有永磁电动机的电动车辆。
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