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1. 发明专利

DE602005006721D1 未知
公开(公告)号：DE602005006721D1
公开(公告)日：2008-06-26
申请号：DE602005006721
申请日：2005-11-30
申请人： HITACHI LTD
发明人： NEMOTO KANAKO , TAKANO YASUSHI , TAKAHASHI KAZUHIKO , SHIMA KAZUO , NISHIHAMA KAZUO
IPC分类号： H02K1/22 , H02K1/27
摘要： Provided is a rotating electric machine which can restrain vibration and noise induced by a radial electromagnetic force of the rotating electric machine, and in which a rotor (1) is divided into first to fourth four rotating pieces (3), (4), (5), (6) having axial lengths of 0.29L, 0.71L, 0.71L and 0.29L where 2L is an axial length of a rotor (1) or stator core (7), and secondary conductors defining effective magnetic pole opening angles, are arranged being shifted by a value which is equal to a phase difference of electric angle between axial sections of the rotator pieces (3), (4), (5), (6) in order to define skews so that phase differences of electric angles are continuous between axial sections of the first and second rotor pieces, (3), (4) the skews being continuous between the third and fourth rotor pieces (5), (6) but being not continuous between the second and third rotor piece (4), (5).

2. 发明专利

DK2149964T3 Synkrongenerator og synkrongeneratorsystem 未知
公开(公告)号：DK2149964T3
公开(公告)日：2015-08-10
申请号：DK09166222
申请日：2009-07-23
申请人： HITACHI LTD
发明人： SAWAHATA MASANORI , NISHIHAMA KAZUO , MIKAMI HIROYUKI , FUJIGAKI TETSUO , IIZUKA MOTONOBU , MIZUTANI SHUJI
IPC分类号： H02K1/26 , H02K1/16 , H02K17/42

3. 发明专利

ES2537330T3 Generador síncrono y sistema de generador síncrono 未知
公开(公告)号：ES2537330T3
公开(公告)日：2015-06-05
申请号：ES09166222
申请日：2009-07-23
申请人： HITACHI LTD
发明人： SAWAHATA MASANORI , NISHIHAMA KAZUO , MIKAMI HIROYUKI , FUJIGAKI TETSUO , IIZUKA MOTONOBU , MIZUTANI SHUJI
IPC分类号： H02K1/26 , H02K1/16 , H02K17/42
摘要： Un generador síncrono, que comprende un rotor (20) que tiene un devanado (23) de campo colocado en las ranuras (22) del mismo y un estator (10) que tiene un devanado (13) de la armadura colocado en las ranuras (12) del mismo, donde el generador es un generador síncrono excitado por corriente alterna en el cual el devanado (23) de campo está excitado por una corriente alterna, y en el cual se genera la potencia eléctrica en el devanado (13) de la armadura, caracterizado por que el valor del número de ranuras (12) por cada dos polos del estator (10) menos el número de ranuras (22) por cada dos polos en el rotor (20) |N1 - N2| es igual a 9, 12, 15, 18, 21 o 24.

4. 发明专利

JP2001309574A CHARGING SYSTEM COMPRISING A PLURALITY OF ALTERNATOR FOR VEHICLE 失效
公开(公告)号：JP2001309574A
公开(公告)日：2001-11-02
申请号：JP2000131507
申请日：2000-04-26
申请人： HITACHI LTD
发明人： KANAZAWA HIROYUKI , MAKI KOJI , NISHIHAMA KAZUO , TAWARA KAZUO , TAKANO MASAMI
IPC分类号： H02J7/16 , H02P9/30
摘要： PROBLEM TO BE SOLVED: To achieve reduction in size and improvement in function of an alternator for vehicle. SOLUTION: An alternator for vehicle is allocated in separation for a low voltage side (1) and a high voltage side (2), and batteries (3, 4) corresponding to respective alternators for vehicle are also provided to use in common the power of both alternators.

5. 发明专利

JP2017118719A 回転電機审中-公开
公开(公告)号：JP2017118719A
公开(公告)日：2017-06-29
申请号：JP2015252801
申请日：2015-12-25
申请人：株式会社日立製作所 , Hitachi Ltd
发明人： KOORI DAISUKE , IWANO RYUICHIRO , SAWAHATA KIMINORI , NISHIHAMA KAZUO , IIZUKA MOTONOBU , KOYAMA TAKAYUKI , SUGIMOTO KENICHI
IPC分类号： H02K1/20 , H02K1/18
CPC分类号： H02K9/10 , H02K1/12 , H02K1/20 , H02K7/14
摘要：【課題】本発明は長尺化した回転電機の軸方向中心付近の冷媒風量を増加させ、冷却効率を向上させた回転電機システムを提供することにある。【解決手段】回転子と固定子とを備えた回転電機であって、前記固定子はコイルと固定子鉄心とを備え、前記コイルは、周方向に配置され、前記固定子鉄心は、軸方向に複数の電磁鋼板が積層されて成る積層電磁鋼板が複数組のパケット鉄心に分割されると共に、該複数組のパケット鉄心の1つとそれに隣り合う他のパケット鉄心との間に、冷媒を固定子径方向に流す流路となるダクトが形成され、前記パケット鉄心と前記ダクトとが軸方向に交互に配設されて構成され、前記ダクトのうち軸方向両端部から中心側に位置するダクトにおいて、ダクトを挟んで対向する二つのパケット鉄心の、その径方向長さ大きくした部分を有することを特徴とする回転電機【選択図】図6

6. 发明专利

JP2011239519A Reaction plate of linear induction motor 有权
标题翻译：线性电感电机的反应板
公开(公告)号：JP2011239519A
公开(公告)日：2011-11-24
申请号：JP2010107116
申请日：2010-05-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOYAMA TAKAYUKI , NISHIHAMA KAZUO , NOZAKI YUICHIRO , KOMURA AKIYOSHI
IPC分类号： H02K41/025
摘要： PROBLEM TO BE SOLVED: To provide a reaction plate that permits higher thrust and power factor than those of a conventional thick plate flat type reaction plate and assurance of reliability, robustness and productivity.SOLUTION: A reaction plate 102 of a linear induction motor is installed on a track on which a running vehicle travels as a secondary side conductor together with a primary side iron-core 101 on the running vehicle. The reaction plate 102 of the linear induction motor is comprised of a bonded material that bonds the top surface of an iron-system metallic base material 109 and the bottom surface of an electric conductive non-ferrous material 103. The top surface of the electric conductive non-ferrous material 103 is arranged so as to face the primary side iron-core 101, and multiple cuts 91 are grooved on the top surface of the iron-system metallic base material 109 at certain intervals.
摘要翻译：要解决的问题：提供一种反应板，其允许比常规厚板平板型反应板的推力和功率因数更高的推力和功率因数，并且确保可靠性，鲁棒性和生产率。解决方案：线性感应电动机的反作用板102安装在作为次级侧导体的行驶轨道上与行驶车辆上的初级侧铁芯101一起行驶的轨道上。线性感应电动机的反作用板102由铁系金属基材109的上表面和导电性有色金属材料103的底面接合的接合材料构成。导电性的上表面有色金属材料103被配置为面对初级侧铁芯101，并且多个切口91以一定间隔在铁系金属基材109的上表面上开槽。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2006254638A Rotating electric machine and wind force power generating system 有权
标题翻译：旋转电机和风力发电系统
公开(公告)号：JP2006254638A
公开(公告)日：2006-09-21
申请号：JP2005070260
申请日：2005-03-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIMURA MAMORU , IDE KAZUMASA , NISHIHAMA KAZUO , FUJIGAKI TETSURO , MIZUTANI SHUJI
IPC分类号： H02K21/14 , H02K1/22 , H02K1/24
CPC分类号： H02K1/276 , H02K21/16 , Y02E10/725
摘要： PROBLEM TO BE SOLVED: To reduce a distortion factor of an induction electromotive force waveform in a permanent magnet rotating electric machine, especially a wind force power generating permanent magnet rotating electric machine.
SOLUTION: The wind force power generating rotating electric machine comprises a stator slot structure to which a distributed winding is wound, and a rotor magnetic pole structure having a permanent magnet. The number of slots in each pole and phase is selected as the number which cannot be divided by 3P. P is the number of the poles. A width Tp is the width of a pole piece. A distance Tr is a distance between centers of adjacent outermost outside diameters in a permanent magnet rotor. A pole width rate Pw is calculated by dividing the pole piece width Tp by the distance Tr. The width Tp of the pole piece 4 is preferably selected within ranges of Pw of 0.6 or less, between 0.67 and 0.71 or 0.78 or more.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了减少永磁旋转电机，特别是风力发电永磁旋转电机中的感应电动势波形的失真因子。解决方案：风力发电旋转电机包括分布绕组缠绕的定子槽结构和具有永磁体的转子磁极结构。每个极点和相位中的插槽数量被选择为不能被3P划分的数字。 P是极数。宽度Tp是极片的宽度。距离Tr是永久磁铁转子中相邻最外侧外径的中心之间的距离。通过将极靴宽度Tp除以距离Tr来计算极宽率Pw。极片4的宽度Tp优选在Pw为0.6以下，0.67〜0.71以下或0.78以上的范围内选择。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2003189527A DYNAMO-ELECTRIC MACHINE 审中-公开
公开(公告)号：JP2003189527A
公开(公告)日：2003-07-04
申请号：JP2001385380
申请日：2001-12-19
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： FUJIGAKI TETSURO , MIDORIKAWA SHUICHI , MIZUTANI SHUJI , NISHIHAMA KAZUO , ISHIZAWA SHUICHI , KIKUCHI SHIRO , SUGANO ISOO
IPC分类号： H02K5/04 , H02K5/16 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To provide a dynamo-electric machine which can improve the property of itself and the reliability, and can facilitate the assembly of itself, and reduce the number of parts, by reforming the bearing bracket structure of itself. SOLUTION: In the dynamo-electric machine which has a frame 1, a stator iron core 6 having stator winding, a rotor iron core 5 having rotor winding, brackets supporting a rotor on both sides in axial direction of the frame, in condition that the stator iron core 6 and the rotor iron core 5 are stored in the frame, and being divided above and below into two pieces coupled together by coupling bolts, a cooling fan 4 for ventilating air by rotating together with a rotor shaft 3, and a shaft being projected from the brackets so as to directly coupled with load, the brackets and the frame 1 are united, and bearings 7 are directly attached to the frame 1. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2001136688A ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JP2001136688A
公开(公告)日：2001-05-18
申请号：JP31667099
申请日：1999-11-08
申请人： HITACHI LTD
发明人： MIKAMI HIROYUKI , NISHIHAMA KAZUO , TAKAHASHI MIYOSHI , YAMAMOTO YUJI , FUJIGAKI TETSURO
IPC分类号： H02K1/26 , H02K17/12
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine that can surely prevent serious accident SOLUTION: This rotary electric machine is equipped with a stator 1 having a plurality of coil winding slots at an inner-periphery part, and a rotor 2 being arranged at the inner-periphery part of the stator and at the same time having a plurality of semienclosed coil winding slots at an outer-periphery part. In this case, the number of coil winding slots 11 of the rotor is larger than that of stator coil winding slots 3, the thickness it the radial direction of a projection member 14a that projects to the side of the coil winding slot from the outer- periphery part of a core tooth being formed between the adjacent coil winding slots of the rotor and forms the semienclosed coil winding slot is set larger than gap length (g) between the stator and rotor, and at the same time periphery-direction width W2 at the outer-periphery part of the core tooth is set larger than opening width W1 of the stator coil winding slot.

10. 发明专利

JP2013223391A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2013223391A
公开(公告)日：2013-10-28
申请号：JP2012095281
申请日：2012-04-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KUNIHIRO NAOKI , NISHIHAMA KAZUO , KIMURA MAMORU , IIZUKA MOTONOBU , SAWAHATA KIMINORI
IPC分类号： H02K17/16
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine for reducing stress applied to a rotor bar and an end ring by suppressing thermal expansion of the end ring because current density of current flowing on the surface of the end ring becomes large to increase heating power of the end ring due to the smallness of the radial width of the end ring of a rotary electric machine, therefore increasing thermal expansion of the end ring to cause excessive stress to act on the rotor bar.SOLUTION: A gap is formed between a rotor core 22 and an end ring 24, and an inner circumferential part of the end ring 24 is configured to be made smaller than the inner diameter of the rotor core 22 to extend toward a shaft 25 beyond a shaft arm 26. Thus, heat generation by a striking current of the end ring 24 is suppressed to reduce stress acting on a rotor bar 23.
摘要翻译：要解决的问题：提供一种用于通过抑制端环的热膨胀来减小施加到转子杆和端环的应力的旋转电机，因为流过端环表面的电流的电流密度变大以增加加热功率由于旋转电机的端环的径向宽度小，因此端环的热膨胀增加，导致过大的应力作用在转子杆上。解决方案：在转子之间形成间隙芯22和端环24，并且端环24的内周部分被构造成小于转子芯22的内径，以使其超过轴臂26朝向轴25延伸。因此，通过端环24的冲击电流被抑制以减小作用在转子杆23上的应力。

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