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1. 发明专利

JP2004236439A Rotating electric machine 审中-公开
公开(公告)号：JP2004236439A
公开(公告)日：2004-08-19
申请号：JP2003022475
申请日：2003-01-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJIGAKI TETSURO , MIZUTANI SHUJI , SOMA KOJI , IWASHIGE KENGO , TSUZAWA KENICHI
IPC分类号： H02K9/06
摘要： PROBLEM TO BE SOLVED: To reduce noise while improving the heat dissipation efficiency of a rotating electric machine equipped with a radial duct.
SOLUTION: The rotating electric machine is constituted such that a hollowed rotor core 4 is held to a rotor shaft 6 by a rotor shaft arm 8, and an axial duct is thereby formed between the rotor core 4 and the rotor shaft 6. A rectifying plate 11 is installed between circumferential directions of the rotor shaft arm 8, not to cause a wind drift in a cooling wind in the axial duct.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2014003865A Bearing replacement method of rotary electric machine and disassembly device for bearing replacement 有权
标题翻译：旋转电机的轴承替代方法和轴承更换的拆卸装置
公开(公告)号：JP2014003865A
公开(公告)日：2014-01-09
申请号：JP2012139327
申请日：2012-06-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUCHIYA SETSU , IIZUKA MOTONOBU , MIZUTANI SHUJI , FUJIGAKI TETSURO , ENDO MASAAKI , YASUI YOSHIHIRO , SERITA SHOGO , NITTA MASAKAZU
IPC分类号： H02K15/14 , H02K15/02
CPC分类号： F16C35/062 , B25B27/06 , F03D80/50 , F03D80/70 , F05B2230/80 , F16C2237/00 , F16C2360/31 , Y02E10/722 , Y02E10/726 , Y02P70/523 , Y10T29/49679 , Y10T29/53104
摘要： PROBLEM TO BE SOLVED: To enable bearing replacement work to be carried out at a limited space in a nacelle, significantly reduce the costs, and shorten the maintenance time.SOLUTION: In a bearing replacement method of a rotary electric machine of this invention, when a bearing of the rotary electric machine is replaced, multiple bendable arms, which are for removing a first bearing cover component, a power feeding device outer frame, and a slip ring, are attached to an end part of the rotary electric machine. The first bearing cover component, the power feeding device outer frame, and the slip ring are respectively removed by the multiple arms and then the bearing is replaced.
摘要翻译：要解决的问题：为了在机舱的有限空间中进行轴承更换工作，可以显着降低成本，缩短维护时间。解决方案：在本发明的旋转电机的轴承更换方法中，当更换旋转电机的轴承，用于移除第一轴承盖部件，供电装置外框架和滑环的多个可弯曲臂安装在旋转电机的端部。第一轴承盖部件，供电装置外框架和滑环分别由多个臂移除，然后更换轴承。

3. 发明专利

JP2010035336A Synchronous generator and synchronous power generating system 有权
标题翻译：同步发电机和同步发电系统
公开(公告)号：JP2010035336A
公开(公告)日：2010-02-12
申请号：JP2008195093
申请日：2008-07-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAWAHATA KIMINORI , NISHIHAMA KAZUO , MIKAMI HIROYUKI , FUJIGAKI TETSURO , IIZUKA MOTONOBU , MIZUTANI SHUJI
IPC分类号： H02K19/16 , H02K7/18 , H02K17/42
CPC分类号： H02K1/165 , H02K1/265 , H02K17/42
摘要： PROBLEM TO BE SOLVED: To provide an AC energization synchronous generator and an AC energization synchronous generator system for a windmill, capable of suppressing distortion of an armature current waveform. SOLUTION: The synchronous generator includes a rotor for storing a magnetic field wiring in a plurality of rotor slots and a stator for storing an armature winding in a plurality of stator slots and is configured so that a difference between the number of the stator slots and the number of the rotor slots per two poles is at least ±9. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供能够抑制电枢电流波形的变形的风力发电机的交流励磁同步发电机和交流通电同步发电机系统。解决方案：同步发电机包括用于在多个转子槽中存储磁场布线的转子和用于将电枢绕组存储在多个定子槽中的定子，并且构造成使得定子数量之间的差异槽和每两极的转子槽数至少为±9。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2004248361A Rotary electric machine and squirrel-cage induction motor drive system 审中-公开
标题翻译：旋转电机和电池笼感应电机驱动系统
公开(公告)号：JP2004248361A
公开(公告)日：2004-09-02
申请号：JP2003033280
申请日：2003-02-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIHAMA KAZUO , IDE KAZUMASA , FUJIGAKI TETSURO , MIZUTANI SHUJI , NAKAYAMA TAKESHI
IPC分类号： H02K17/20 , H02K17/16
CPC分类号： H02K17/165
摘要： PROBLEM TO BE SOLVED: To realize a low start current and high start torque characteristics and a high efficiency and high power factor characteristics in normal low state, by directly supplying an AC power source 31 as original commercial frequency to a squirrel-cage induction motor.
SOLUTION: The cross-sectional shape of the upper side section 251 of a rotor conductor which exits near the outer periphery of a rotor 20 is a trapezoid, and that of the lower side section 252 of the rotor conductor which exits near the center is a rectangle. The height h1 of the upper side section 251 is 27mm or higher in the case with a brass conductor, while h1 is 7mm or higher in the case with a copper conductor.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：为了在正常低状态下实现低启动电流和高启动转矩特性以及高效率和高功率因数特性，通过将直流电源31作为原始商用频率提供给鼠笼感应电动机。解决方案：在转子20的外周附近离开的转子导体的上侧部分251的横截面形状是梯形，并且转子导体的下侧部分252的横截面形状中心是一个矩形。在黄铜导体的情况下，上侧部251的高度h1为27mm以上，在铜导体的情况下h1为7mm以上。版权所有（C）2004，JPO＆NCIPI

5. 发明专利

JP2006109549A Permanent magnet dynamo-electric machine and wind force power generating system 有权
标题翻译：永磁电动机和风力发电系统
公开(公告)号：JP2006109549A
公开(公告)日：2006-04-20
申请号：JP2004289510
申请日：2004-10-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIMURA MAMORU , IDE KAZUMASA , IIZUKA MOTONOBU , MIZUTANI SHUJI , FUJIGAKI TETSURO , IWASHIGE KENGO , TAGAWA HISATO , MARUNO YUSAKU
IPC分类号： H02K9/08 , H02K7/18
CPC分类号： H02K1/32 , F03D9/25 , F05B2260/20 , H02K1/2706 , H02K1/30 , H02K7/1838 , H02K9/06 , Y02E10/725
摘要： PROBLEM TO BE SOLVED: To improve a cooling performance and reduce a size of a dynamo-electric machine, especially a wind force power generating dynamo-electric machine.
SOLUTION: In the permanent magnet dynamo-electric machine which provided in a wind force power generating system and has a stator with a distributed winding on a stator iron core and a permanent magnet rotor, the permanent magnet rotor has a ventilation path disposed in the axial direction. Alternatively, a fan is installed on a rotational shaft and transmits a cooling wind in the axial direction. The permanent magnet rotor has a rotor core connected to the shaft using a spider.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提高发电机，特别是风力发电发电机的冷却性能和尺寸减小。解决方案：在设置在风力发电系统中并具有定子铁心和永久磁铁转子上的分布绕组的定子的永久磁铁发电机中，永磁转子具有通风通路，在轴向上。或者，风扇安装在旋转轴上并沿轴向传递冷却风。永磁转子具有使用蜘蛛连接到轴的转子芯。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004215365A Squirrel cage induction motor 审中-公开
公开(公告)号：JP2004215365A
公开(公告)日：2004-07-29
申请号：JP2002380623
申请日：2002-12-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUMITA TATSUHIKO , FUJIGAKI TETSURO , MIZUTANI SHUJI , NISHIHAMA KAZUO , NAKAYAMA TAKESHI , OUCHI KAZUTERU
IPC分类号： H02K17/16
摘要： PROBLEM TO BE SOLVED: To provide a squirrel cage induction motor capable of further being restrained in a starting current and increasing starting torque by a simple structure.
SOLUTION: Magnetic substances (11, 14) installed on a rotor side are brought near a rotor core 3 side and disposed in a range from the outmost periphery of a rod-like conductor 4 inserted in the rotor core 3 to the inside diameter of a stator core 6.
COPYRIGHT: (C)2004,JPO&NCIPI

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

JP2004242376A Vertical type dynamo-electric machine 审中-公开
公开(公告)号：JP2004242376A
公开(公告)日：2004-08-26
申请号：JP2003026175
申请日：2003-02-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SOMA KOJI , FUJIGAKI TETSURO , MIZUTANI SHUJI , SUGANO ISOO , FUJITA FUMIHIRO
IPC分类号： F16C19/54 , H02K5/173 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To provide a vertical type dynamo-electric machine capable of positively realizing promotion of compactness and high reliability.
SOLUTION: This vertical type dynamo-electric machine, which is used by mounting brackets 6, 7 on the upper and lower portions of a frame 1, vertically retaining a rotor shaft 5 by a bearing 80 on its upper end side and a bearing 90 on its lower end side, and connecting a load 90 to the lower end of the rotor shaft 5, uses a thrust auto-aligning roller bearing as the bearing 90 on its lower end side (the load side) and an ordinary ball bearing as the bearing 80 on its upper end side (the non-load side).
COPYRIGHT: (C)2004,JPO&NCIPI

9. 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

10. 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.

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