公开(公告)号：US20060279154A1

公开(公告)日：2006-12-14

申请号：US11509619

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

CPC分类号： H02K1/276 ,  H02K29/03

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。

公开(公告)号：US06822360B2

公开(公告)日：2004-11-23

申请号：US10338753

申请日：2003-01-09

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： H02K2112

CPC分类号： H02K1/276 ,  H02K29/03

摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnetic 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.

公开(公告)号：US06734592B2

公开(公告)日：2004-05-11

申请号：US10142154

申请日：2002-05-10

申请人： Fumio Tajima ,  Yutaka Matsunobe ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi ,  Keiji Oda

发明人： Fumio Tajima ,  Yutaka Matsunobe ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi ,  Keiji Oda

IPC分类号： H02K2112

CPC分类号： H02K19/103 ,  B60L15/025 ,  B60L2200/26 ,  H02K1/246 ,  H02K1/276 ,  H02K3/28 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03 ,  Y02T10/641 ,  Y02T10/643

摘要： A rotating electric machine comprises a stator having stator salient poles, three-phases windings wound around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles, wherein said three-phase windings are concentratively wound around each of said stator salient poles, said windings of each phase are wound around at more than one stator salient pole, and said windings of each phase have a phase difference of voltage between at least one of the windings and the other.

摘要翻译： 旋转电机包括具有定子凸极的定子，缠绕在所述定子凸极上的三相绕组，可旋转地保持在所述定子内部的转子和插入所述转子并与所述定子凸极相对定位的永磁体，其中所述 三相绕组集中地卷绕在每个所述定子凸极上，每相的所述绕组围绕多于一个定子凸极缠绕，并且每相的所述绕组具有至少一个绕组之间的电压相位差 和另一个。

公开(公告)号：US06528920B2

公开(公告)日：2003-03-04

申请号：US09805572

申请日：2001-03-14

申请人： Yutaka Matsunobu ,  Fumio Tajima ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi

发明人： Yutaka Matsunobu ,  Fumio Tajima ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi

IPC分类号： H02K2112

CPC分类号： H02K1/276 ,  H02K29/03 ,  Y02T10/641

摘要： At least one groove and two grooves extending toward an axial direction of a rotor and is provided on an outer periphery of a rotor iron core or at least one hole is provided in the rotor iron core. By providing the groove and the two grooves on the outer periphery of the rotor iron core or by providing the hole in the rotor iron core, cogging torque is generated to negate the cogging torque which is generated according to the magnetic fluctuation between the magnetic field of the permanent magnets and a stator. As a result, the overall cogging toque in a permanent magnet type rotary machine is reduced.

摘要翻译： 在转子铁芯中设置有至少一个沿转子的轴向延伸并且设置在转子铁芯的外周上或至少一个孔的槽和两个槽。 通过在转子铁心的外周设置槽和两个槽，或通过在转子铁芯中设置孔，产生齿槽转矩，以消除齿根转矩，该齿槽转矩根据磁铁的磁场 永磁体和定子。 结果，减少了永磁式旋转机械中的整体齿槽转矩。

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。

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

CPC分类号： H02P6/10 ,  H02P6/00

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。

公开(公告)号：US06396183B1

公开(公告)日：2002-05-28

申请号：US09488637

申请日：2000-01-21

申请人： Fumio Tajima ,  Yutaka Matsunobe ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi ,  Keiji Oda

发明人： Fumio Tajima ,  Yutaka Matsunobe ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi ,  Keiji Oda

IPC分类号： H02K2112

CPC分类号： H02K19/103 ,  B60L15/025 ,  B60L2200/26 ,  H02K1/246 ,  H02K1/276 ,  H02K3/28 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03 ,  Y02T10/641 ,  Y02T10/643

摘要： A rotating electric machine comprises a stator having stator salient poles, three-phases windings wound around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles, wherein said three-phase windings are concentratively wound around each of said stator salient poles, said windings of each phase are wound around at more than one stator salient pole, and said windings of each phase have a phase difference of voltage between at least one of the windings and the other.

摘要翻译： 旋转电机包括具有定子凸极的定子，缠绕在所述定子凸极上的三相绕组，可旋转地保持在所述定子内部的转子和插入所述转子并与所述定子凸极相对定位的永磁体，其中所述 三相绕组集中地卷绕在每个所述定子凸极上，每相的所述绕组围绕多于一个定子凸极缠绕，并且每相的所述绕组具有至少一个绕组之间的电压相位差 和另一个。

公开(公告)号：US06242837B1

公开(公告)日：2001-06-05

申请号：US09161726

申请日：1998-09-29

申请人： Yutaka Matsunobu ,  Fumio Tajima ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi

发明人： Yutaka Matsunobu ,  Fumio Tajima ,  Shouichi Kawamata ,  Suetaro Shibukawa ,  Osamu Koizumi

IPC分类号： H02K2112

CPC分类号： H02K1/276 ,  H02K29/03 ,  Y02T10/641

摘要： At least one groove and two grooves extending toward an axial direction of a rotor and is provided on an outer periphery of a rotor iron core or at least one hole is provided in the rotor iron core. By providing the groove and the two grooves on the outer periphery of the rotor iron core or by providing the hole in the rotor iron core, cogging torque is generated to negate the cogging torque which is generated according to the magnetic fluctuation between the magnetic field of the permanent magnets and a stator. As a result, the overall cogging toque in a permanent magnet type rotary machine is reduced.

摘要翻译： 在转子铁芯中设置有至少一个沿转子的轴向延伸并且设置在转子铁芯的外周上或至少一个孔的槽和两个槽。 通过在转子铁心的外周设置槽和两个槽，或通过在转子铁芯中设置孔，产生齿槽转矩，以消除齿根转矩，该齿槽转矩根据磁铁的磁场 永磁体和定子。 结果，减少了永磁式旋转机械中的整体齿槽转矩。

公开(公告)号：US06208054B1

公开(公告)日：2001-03-27

申请号：US08946581

申请日：1997-10-07

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

IPC分类号： H02K2112

CPC分类号： H02K1/276 ,  H02K29/03

摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnetic 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。

公开(公告)号：US06188157B1

公开(公告)日：2001-02-13

申请号：US09116246

申请日：1998-07-16

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： H02K2112

CPC分类号： H02K1/276 ,  B60L2200/00 ,  H02K29/06 ,  Y02T10/641

摘要： An electrically driven motor vehicle having mechanism including a permanent magnet dynamo electric machine which permits high speed of rotation. The permanent magnet dynamo electric machine includes a stator having a stator iron core in which a stator winding is wound, and a rotor facing the inner circumference of the stator and rotatably supported thereby. The rotor has a rotor iron core and a number of permanent magnets arranged in a ring inside the rotor iron core. The rotor iron core is provided with a number of permanent magnet insertion holes equal to the number of permanent magnets so as to position the permanent magnets at positions at which the ratio R1/R0 is equal to or more than 0.85, where R0 is the radius of the rotor and R1 is the radius of an imaginary circle drawn by inscribing the faces of the permanent magnets at the side thereof remote from the stator.

摘要翻译： 具有允许高速旋转的永磁发电机的机构的电动机动车辆。 永磁发电机包括具有定子铁芯的定子，定子绕组缠绕在定子铁心中，转子面向定子的内周并由其可旋转地支撑。 转子具有转子铁芯和多个设置在转子铁芯内的环中的永磁体。 转子铁芯设置有多个等于永磁体数量的永磁体插入孔，以便将永磁体定位在比率R1 / R0等于或大于0.85的位置处，其中R0是半径 并且R1是通过将永磁体的表面远离定子的一侧刻上来绘制的假想圆的半径。