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1. 发明授权

US06815858B2 Permanent magnet rotating electric machine 有权
标题翻译：永磁旋转电机
公开(公告)号：US06815858B2
公开(公告)日：2004-11-09
申请号：US10245589
申请日：2002-09-18
申请人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
发明人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
IPC分类号： H02K2112
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.

2. 发明授权

US07148597B2 Permanent magnet rotating electric machine 有权
公开(公告)号：US07148597B2
公开(公告)日：2006-12-12
申请号：US10981596
申请日：2004-11-05
申请人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
发明人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
IPC分类号： H02K21/12 , H02K21/04
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.

3. 发明申请

US20060087189A1 Permanent magnet rotating electric machine 有权
公开(公告)号：US20060087189A1
公开(公告)日：2006-04-27
申请号：US11296398
申请日：2005-12-08
申请人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
发明人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
IPC分类号： H02K21/12
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.

4. 发明申请

US20050062355A1 Permanent magnet rotating electric machine 有权
标题翻译：永磁旋转电机
公开(公告)号：US20050062355A1
公开(公告)日：2005-03-24
申请号：US10981596
申请日：2004-11-05
申请人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
发明人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
IPC分类号： H02K1/22 , H02K1/27 , H02K21/14 , H02K29/03 , H02K21/12
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.
摘要翻译：永磁旋转电机在预定的电流和电压条件下不会发生偏斜，以防止转矩降低并且降低脉动转矩，使机器振动较小，噪音较小。永磁旋转电机包括具有多相定子绕组的定子和具有内部嵌入转子芯中的多个永磁体的转子。转子的核心形状在深度（纵向）方向上是均匀的，而在永久磁铁的布置中没有偏斜。对于每个极，永磁体相对于旋转方向是对称的，但是相对于深度方向是不规则的。从极间永磁体产生的磁通几乎等于从极中心永磁体产生的磁通量。

5. 发明授权

US07417346B2 Permanent magnet rotating electric machine 有权
标题翻译：永磁旋转电机
公开(公告)号：US07417346B2
公开(公告)日：2008-08-26
申请号：US11748180
申请日：2007-05-14
申请人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
发明人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
IPC分类号： H02K1/22 , H02K1/27
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.
摘要翻译：永磁旋转电机在预定的电流和电压条件下不会发生偏斜，以防止转矩降低并且降低脉动转矩，使机器振动较小，噪音较小。永磁旋转电机包括具有多相定子绕组的定子和具有内部嵌入转子芯中的多个永磁体的转子。转子的核心形状在深度（纵向）方向上是均匀的，而在永久磁铁的布置中没有偏斜。对于每个极，永磁体相对于旋转方向是对称的，但是相对于深度方向是不规则的。从极间永磁体产生的磁通几乎等于从极中心永磁体产生的磁通量。

6. 发明授权

US07233089B2 Permanent magnet rotating electric machine 有权
标题翻译：永磁旋转电机
公开(公告)号：US07233089B2
公开(公告)日：2007-06-19
申请号：US11296398
申请日：2005-12-08
申请人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
发明人： Yutaka Matsunobu , Fumio Tajima , Shouichi Kawamata , Takashi Yasuhara
IPC分类号： H02K21/12 , H02K21/04
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.
摘要翻译：永磁旋转电机在预定的电流和电压条件下不会发生偏斜，以防止转矩降低并且降低脉动转矩，使机器振动较小，噪音较小。永磁旋转电机包括具有多相定子绕组的定子和具有内部嵌入转子芯中的多个永磁体的转子。转子的核心形状在深度（纵向）方向上是均匀的，而在永久磁铁的布置中没有偏斜。对于每个极，永磁体相对于旋转方向是对称的，但是相对于深度方向是不规则的。从极间永磁体产生的磁通几乎等于从极中心永磁体产生的磁通量。

7. 发明授权

US08198775B2 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine 有权
标题翻译：永磁电动旋转机及电动车采用永磁电动旋转机
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
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。

8. 发明授权

US07808144B2 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine 有权
标题翻译：永磁电动旋转机及电动车采用永磁电动旋转机
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
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。

9. 发明申请

US20060284508A1 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine 有权
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
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.

10. 发明授权

US06876117B2 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine 有权
标题翻译：永磁电动旋转机及电动车采用永磁电动旋转机
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
IPC分类号： H02K1/27 , H02K21/12 , H02K3/00
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。

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