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1. 发明授权

EP2037556B1 Electric machine with permanent magnets arrangement for reducing torque pulsation 有权
公开(公告)号：EP2037556B1
公开(公告)日：2019-07-03
申请号：EP08020893.7
申请日：2002-09-19
申请人： Hitachi, Ltd.
发明人： Matsunobu, Yutaka , Tajima, Fumio , Kawamata, Shouichi , Yasuhara, Takashi
IPC分类号： H02K1/27 , H02K29/03

2. 发明公开

EP2037556A2 Electric machine with permanent magnets arrangement for reducing torque pulsation 审中-公开
标题翻译：电机与永久磁铁的布置，以减少扭矩脉动
公开(公告)号：EP2037556A2
公开(公告)日：2009-03-18
申请号：EP08020893.7
申请日：2002-09-19
申请人： Hitachi Ltd.
发明人： Matsunobu, Yutaka , Tajima, Fumio , Kawamata, Shouichi , Yasuhara, Takashi
IPC分类号： H02K1/27
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine comprises a stator (20) and a rotor (30) having a plurality of permanent magnets internally in a rotor core (32) and which is rotatably arranged with a predetermined gap to said stator (20), a core shape of the rotor (30) being uniform in a depth (longitudinal) direction, wherein a plurality of permanent magnets are arranged for each pole of said rotor (30) and wherein said plurality of permanent magnets are symmetrical with respect to a rotation direction but irregularly with respect to the depth direction, the rotor having for every pole thereof two radial permanent-magnet inserting holes (34A", 34C") each having a rectangular cross section with the longer side thereof arranged in radial direction of the rotor, and a circumferential permanent-magnet inserting hole (34B") having its longer side arranged in circumferential direction of the rotor, wherein a plurality of permanent magnets (36A", 36B", 36C") are inserted into the permanent-magnet inserting holes.
摘要翻译：一种永磁旋转电机包括：可旋转地以预定间隙与所述定子（20），芯布置在定子（20）和在转子芯（32），其具有在内部的永久磁铁的多个A转子（30）和所有的形状的转子（30）是均匀的，在深度方向（纵向）的，worin永磁体的多元被布置用于所述转子（30）的每个极和worin所述多个永磁体是对称的相对于旋转方向，但不规则相对于深度方向，具有转子每极而两个径向永久磁铁插入孔（34A“ 34C”），每个具有与所述长边在所述转子的径向方向上排列的矩形横截面，和一个圆周永久磁铁插入孔（34B“），其具有其长边在所述转子的周向方向布置，worin永久磁铁的多个（36A”，36B“ 36C”）被插入到永久MAGN 等插入孔。

3. 发明授权

EP1130747B8 Permanent magnet type electric machine for an hybrid electric vehicle 有权
公开(公告)号：EP1130747B8
公开(公告)日：2018-02-07
申请号：EP00118284.9
申请日：2000-09-05
申请人： Hitachi, Ltd.
发明人： Matsunobu, Yutaka , Tajima, Fumio , Kawamata, Shouichi , Koizumi, Osamu , Obara, Sanshiro
IPC分类号： B60K6/26 , B60K6/442 , B60K6/543 , H02K21/14 , H02K1/27
CPC分类号： B60K6/26 , B60K6/442 , B60K6/543 , H02K21/14 , Y02T10/6234 , Y02T10/641 , Y10S903/903 , Y10S903/905 , Y10S903/906 , Y10S903/918 , Y10S903/951
摘要： A permanent magnet type electric rotating machine comprises a stator (1) having a salient-pole concentrated winding, and a rotor disposed with a rotational gap (5), and having a plurality of permanent magnets (8) arranged and fixed in a circumferential direction inside, and an auxiliary salient pole (61) provided between the permanent magnets. A ratio of the number of poles for the rotor and the number of slots for the stator is 2:3 and, when a slot pitch of the stator is tau s (electrical angle), an angle &thetas; (electrical angle) made by a circumferential width of the permanent magnet in the surface of the stator side with an axis of the rotor is set at &thetas; ≒ n x tau s/2 + 8 x m (n=1 or 2, and m=1, 2 or 3). Thus, pulsation torque, cogging torque or the waveform distortion of a no-load induced voltage is selectively reduced as occasion demands.

4. 发明授权

EP1130747B1 Permanent magnet type electric machine for an hybrid electric vehicle 有权
标题翻译：用于混合动力电动车辆的永磁式电机
公开(公告)号：EP1130747B1
公开(公告)日：2017-11-15
申请号：EP00118284.9
申请日：2000-09-05
申请人： Hitachi, Ltd.
发明人： Matsunobu, Yutaka , Tajima, Fumio , Kawamata, Shouichi , Koizumi, Osamu , Obara, Sanshiro
IPC分类号： B60K6/26 , B60K6/442 , B60K6/543 , H02K21/14 , H02K1/27
CPC分类号： B60K6/26 , B60K6/442 , B60K6/543 , H02K21/14 , Y02T10/6234 , Y02T10/641 , Y10S903/903 , Y10S903/905 , Y10S903/906 , Y10S903/918 , Y10S903/951
摘要： A permanent magnet type electric rotating machine comprises a stator (1) having a salient-pole concentrated winding, and a rotor disposed with a rotational gap (5), and having a plurality of permanent magnets (8) arranged and fixed in a circumferential direction inside, and an auxiliary salient pole (61) provided between the permanent magnets. A ratio of the number of poles for the rotor and the number of slots for the stator is 2:3 and, when a slot pitch of the stator is tau s (electrical angle), an angle &thetas; (electrical angle) made by a circumferential width of the permanent magnet in the surface of the stator side with an axis of the rotor is set at &thetas; ≒ n x tau s/2 + 8 x m (n=1 or 2, and m=1, 2 or 3). Thus, pulsation torque, cogging torque or the waveform distortion of a no-load induced voltage is selectively reduced as occasion demands.

5. 发明公开

EP2037556A3 Electric machine with permanent magnets arrangement for reducing torque pulsation 审中-公开
标题翻译：电机与永久磁铁的布置，以减少扭矩脉动
公开(公告)号：EP2037556A3
公开(公告)日：2012-02-22
申请号：EP08020893.7
申请日：2002-09-19
申请人： Hitachi Ltd.
发明人： Matsunobu, Yutaka , Tajima, Fumio , Kawamata, Shouichi , Yasuhara, Takashi
IPC分类号： H02K1/27 , H02K29/03
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine comprises a stator (20) and a rotor (30) having a plurality of permanent magnets internally in a rotor core (32) and which is rotatably arranged with a predetermined gap to said stator (20), a core shape of the rotor (30) being uniform in a depth (longitudinal) direction, wherein a plurality of permanent magnets are arranged for each pole of said rotor (30) and wherein said plurality of permanent magnets are symmetrical with respect to a rotation direction but irregularly with respect to the depth direction, the rotor having for every pole thereof two radial permanent-magnet inserting holes (34A", 34C") each having a rectangular cross section with the longer side thereof arranged in radial direction of the rotor, and a circumferential permanent-magnet inserting hole (34B") having its longer side arranged in circumferential direction of the rotor, wherein a plurality of permanent magnets (36A", 36B", 36C") are inserted into the permanent-magnet inserting holes.
摘要翻译：一种永久磁铁旋转电机采用了预定的电流和电压条件下不偏斜，以防止降低扭矩并降低脉动转矩，使机器少振动和噪声更少。的永磁体旋转电机包括定子（20）的多相定子绕组和转子（30）与内部埋设在转子铁心的永磁体（36）的复数。所述转子的铁心形状在与所述永久磁铁（36）的布置没有偏斜的深度（纵向）方向上均匀。永久磁铁（36A，36B，和36C）是对称的相对于径向轴线，但不规则相对于轴向方向，对于每个极点。从磁极间的永久磁铁（36A和36C）产生的磁通几乎等于从极中心永久磁铁（36B）产生的磁通。

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