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1. 发明公开

EP2605380A3 Rotating electric machine, rail vehicle and electric vehicle equipped therewith 有权转让
标题翻译：旋转电机，轨道车辆和配备有它的电动车辆
公开(公告)号：EP2605380A3
公开(公告)日：2017-12-06
申请号：EP12197185.7
申请日：2012-12-14
申请人： Hitachi, Ltd.
发明人： Sugimoto, Shinji , Komura, Akiyoshi , Kimura, Mamoru , Masuda, Seikichi , Fujieda, Masayasu , Otake, Shunsuke , Koike, Masatoshi , Endo, Mikio
IPC分类号： H02K9/06 , H02K1/08 , H02K1/16
CPC分类号： H02K9/06 , H02K1/32 , H02K9/10 , Y02T10/641
摘要： Object
Not only inside air but also coil end part of a stator 2 are prevented from becoming high in temperature, and cooling performance is improved.
Solution to Problem
In order to achieve the object described above, a rotating electric machine 1 of the present invention is made up of a stator 2 and a rotor 3 oppositely arranged through the intervention of predetermined air gap at the inner diameter side of the stator 2; the stator 2 has a stator iron core 4, a plurality of stator slots 12 that extend in the axial direction and are formed in the circumferential direction at predetermined intervals at the inner diameter side of the stator iron core 4, and stator coils attached in the plurality of stator slots 12; the rotor 3 has a rotor iron core 7, a plurality of rotor slots 6 that extend in the axial direction and are formed in the circumferential direction at predetermined intervals at the outer circumference side of the rotor iron core 7, and magnetic field members inserted in the rotor slots 6; and the rotor iron core 7 has an outside air ventilation hole 17a for ventilating air outside the machine and an inside air ventilation hole 16 for ventilating air inside the machine.
摘要翻译：目的不仅在定子2的内部而且定子2的线圈端部分变得高温，并且冷却性能得到改善。解决问题的方案为了实现上述目的，本发明的旋转电机1由定子2和转子3构成，该定子2和转子3通过预定气隙的介入而相对地布置在定子2的内径侧 ; 定子2具有：定子铁芯4;在定子铁芯4的内径侧以规定间隔沿周向形成的多个定子槽12;以及在定子铁芯4的内径侧以规定间隔形成的定子线圈多个定子槽12; 转子3具有：转子铁芯7;在转子铁芯7的外周侧以规定间隔沿周向形成的多个转子槽6;以及插入到转子铁芯7的外周侧的磁场构件转子槽6; 并且转子铁芯7具有用于使机器外部的空气通风的外部空气通风孔17a和用于使机器内部的空气通风的内部空气通风孔16。

2. 发明公开

EP2680402A2 Electrical rotating machine 审中-公开
标题翻译：电动旋转机器
公开(公告)号：EP2680402A2
公开(公告)日：2014-01-01
申请号：EP13170639.2
申请日：2013-06-05
申请人： Hitachi Ltd.
发明人： Kimura, Mamoru , Komura, Akiyoshi , Kori, Daisuke , Fujigaki, Tetsuo , Iizuka, Motonobu
IPC分类号： H02K1/27
CPC分类号： H02K3/04 , H02K1/223 , H02K1/2766 , Y02E10/725
摘要： An object of this invention is to provide an electrical rotating machine that minimizes a decrease in output while improving demagnetization resistance of permanent magnets.
In order to attain the above object, an electrical rotating machine includes: a shaft 6, a rotor 2 formed to rotate with rotation of the shaft 6, the rotor 2 being equipped with permanent magnets 3; a stator 1 disposed in opposed form on an outside-diametral side of the rotor 2 via a clearance with respect to the rotor 2; and anti-demagnetization conductors 7 extending in the axial direction of the shaft 6, the conductors 7 each being disposed inside the rotor 2; wherein: the anti-demagnetization conductors 7 are provided in pairs of two for each of magnetic poles of the rotor 2; the two anti-demagnetization conductors 7 to form a pair are electrically interconnected; and, inside the rotor 2, the two paired anti-demagnetization conductors 7 are disposed at different-polarity sides of two corresponding permanent magnets 3 in a circumferential direction of the rotor 2, the different-polarity sides each being more adjacent to the circumferential direction of the rotor 2 than to an end portion of one of the two corresponding permanent magnets 3 existing close to each other in one magnetic pole.
摘要翻译：本发明的目的是提供一种旋转电机，其能够在提高永磁体的抗消磁性的同时使输出的降低最小化。为了实现上述目的，旋转电机包括：轴6，转子2，其随着轴6的旋转而旋转，转子2配备有永磁体3; 在转子2的外径侧以相对于转子2的间隙相对配置的定子1，以及沿轴6的轴向延伸的防退磁导体7，每个导体7都设置在转子2的内部; 其中：对于转子2的每个磁极成对设置两个去磁导体7; 形成一对的两个消磁导体7电互连; 并且在转子2的内部，两对减磁导体7在转子2的圆周方向上布置在两个对应的永磁体3的不同极性侧，不同极性侧各自更靠近圆周方向相比于在一个磁极中彼此靠近的两个对应的永磁体3中的一个永磁体的端部。

3. 发明授权

EP2605380B1 Rotating electric machine, rail vehicle and electric vehicle equipped therewith 有权转让
公开(公告)号：EP2605380B1
公开(公告)日：2019-02-20
申请号：EP12197185.7
申请日：2012-12-14
申请人： Hitachi, Ltd.
发明人： Sugimoto, Shinji , Komura, Akiyoshi , Kimura, Mamoru , Masuda, Seikichi , Fujieda, Masayasu , Otake, Shunsuke , Koike, Masatoshi , Endo, Mikio
IPC分类号： H02K9/06 , H02K1/08 , H02K1/16

4. 发明授权

EP2418756B1 Permanent magnet rotating electric machine 有权
标题翻译：一种旋转电机用永久磁铁
公开(公告)号：EP2418756B1
公开(公告)日：2015-07-08
申请号：EP10196712.3
申请日：2010-12-23
申请人： Hitachi, Ltd.
发明人： Hori, Masahiro , Kori, Daisuke , Komura, Akiyoshi , Masuda, Seikichi , Kimura, Mamoru , Obata, Nobuhiko , Koizumi, Takayuki
IPC分类号： H02K1/27 , H02K1/32
CPC分类号： H02K1/2766 , H02K7/1838 , H02K16/00 , Y02E10/725

5. 发明公开

EP1333558A3 Rotor for rotating electric machine and method of fabricating the same, for gas turbine power plant 审中-公开
标题翻译：旋转电机的电枢，其制造方法为燃气涡轮发电设备
公开(公告)号：EP1333558A3
公开(公告)日：2005-01-26
申请号：EP03002098.6
申请日：2003-01-30
申请人： Hitachi, Ltd.
发明人： Komura, Akiyoshi , Takahashi, Miyoshi , Ide, Kazumasa , Kimura, Mamoru , Mori, Takanobu , Yamaguchi, Kiyoshi , Matsunobu, Takashi
IPC分类号： H02K1/27
CPC分类号： H02K1/2733 , Y10T29/49012
摘要： A rotor for a rotating electric machine comprises a shaft (1), a cylindrical permanent magnet (2) put on the shaft, and a holding ring (3, 3a, 3b) fixedly put on the permanent magnet. The permanent magnet is magnetized by Halbach magnetization, and the holding ring is formed by circumferentially alternately arranging nonmagnetic segments (3a) of a nonmagnetic material and magnetic segments (3b) of a magnetic material. Another rotor for a rotating electric machine comprises a solid, cylindrical permanent magnet (2a), and a cylindrical holding ring put on the permanent magnet, wherein the permanent magnet is magnetized by Halbach magnetization, and the holding ring is formed by circumferentially alternately arranging nonmagnetic segments of a nonmagnetic material and magnetic segments of a magnetic material. A rotating electric machine is provided with one of the foregoing rotors, and a gas turbine power plant is equipped with a rotating electric machine including one of the foregoing rotors. A rotor capable of reducing stator core loss and vibrations when rotated, of providing high output and of being formed in a small size for a rotating electric machine, a method of fabricating the rotor, a rotating electric machine, and a gas turbine power plant are provided.

6. 发明公开

EP2418756A1 Permanent magnet rotating electric machine 有权
标题翻译：机器électriquetournanteà瞄准器永久物
公开(公告)号：EP2418756A1
公开(公告)日：2012-02-15
申请号：EP10196712.3
申请日：2010-12-23
申请人： Hitachi Ltd.
发明人： Hori, Masahiro , Kori, Daisuke , Komura, Akiyoshi , Masuda, Seikichi , Kimura, Mamoru , Obata, Nobuhiko , Koizumi, Takayuki
IPC分类号： H02K1/27 , H02K1/32
CPC分类号： H02K1/2766 , H02K7/1838 , H02K16/00 , Y02E10/725
摘要： A permanent magnet rotating machine has a stator (2), in which armature windings (4) are formed in a plurality of slots formed in a stator iron core, and also has a rotor (1), in which two magnet insertion slots (6) are formed for each pole in a rotor iron core (5) in a V shape when viewed from the outer circumference of the rotor and one permanent magnet (7) is embedded in each magnet insertion slot with polarity alternating for each pole; a wall at one end of the magnet insertion slot on the external diameter side of the rotor is formed with three arcs (R1, RC, and R2) having different curvatures, one (RC) of the three arcs being parallel to the outer circumference (10) of the rotor, and a wall at the other end of the magnet insertion slot on the internal diameter side (11) of the rotor is formed in an arc shape. When this structure is used, a permanent magnet rotating machine can be provided, which can reduce peak stress and leakage magnetic fluxes from magnets, can have superior electrical characteristics, and can reduce stress.
摘要翻译：永磁旋转机具有定子（2），其中电枢绕组（4）形成在形成在定子铁芯中的多个槽中，并且还具有转子（1），其中两个磁体插入槽）形成为从转子的外周观察时为V字形的转子铁芯（5）中的每个极，并且每个磁极插入槽中嵌入一个永磁体（7），每个磁极具有交替的极性; 在转子的外径侧的磁体插入槽的一端的壁形成有具有不同曲率的三个弧（R1，RC和R2），三个弧的一个（RC）平行于外周（ 10），并且在转子的内径侧（11）上的磁体插入口的另一端的壁形成为弧形。当使用这种结构时，可以提供永磁旋转机器，其可以降低峰值应力和来自磁体的漏磁磁通，可以具有优异的电特性，并且可以减少应力。

7. 发明授权

EP2088410B1 Rotary electric machine 有权
公开(公告)号：EP2088410B1
公开(公告)日：2010-05-26
申请号：EP08002305.4
申请日：2008-02-07
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Komura, Akiyoshi , Ide, Kazumasa , Takahashi, Kazuhiko , Iwashige, Kengo , Hattori, Kenichi
IPC分类号： G01K1/02 , H02K9/08 , H02K9/24 , H02K11/00
CPC分类号： G01K13/08 , G01K7/42 , G01K2213/00 , H02K9/12 , H02K11/25

8. 发明公开

EP2088410A1 Rotary electric machine 有权
标题翻译： Drehende elektrische Maschine
公开(公告)号：EP2088410A1
公开(公告)日：2009-08-12
申请号：EP08002305.4
申请日：2008-02-07
申请人： Hitachi, Ltd.
发明人： Nakahara, Akihito , Komura, Akiyoshi , Ide, Kazumasa , Takahashi, Kazuhiko , Iwashige, Kengo , Hattori, Kenichi
IPC分类号： G01K1/02 , H02K9/08 , H02K9/24 , H02K11/00
CPC分类号： G01K13/08 , G01K7/42 , G01K2213/00 , H02K9/12 , H02K11/25
摘要： A rotary electric machine which is smoothly operated with high efficiency by adequately controlling the cooling gas flow as needed to keep the highest temperature inside the rotary electric machine below a predetermined limit, includes a stator with armature windings wound around a stator core, a rotor placed inside the stator in a rotatable manner, and a cooling device for controlling cooling gas flow. The rotary electric machine further includes a device for measuring an ambient temperature and a device for detecting armature voltage and/or armature current and/or field current. The temperature inside the rotary electric machine is calculated from the measured ambient temperature, detection value by the detecting device and an directive value of cooling gas flow. And a calculated suitable value of cooling gas flow is determined according to the calculated temperature inside the rotary electric machine.
摘要翻译：通过适当地控制冷却气体流动使旋转电机内部的最高温度保持在预定极限以下，可以高效地平稳地运转的旋转电机包括：定子，其具有缠绕在定子芯上的电枢绕组，转子放置可旋转的方式在定子内部，以及用于控制冷却气流的冷却装置。旋转电机还包括用于测量环境温度的装置和用于检测电枢电压和/或电枢电流和/或场电流的装置。旋转电机内的温度由测量的环境温度，检测装置的检测值和冷却气体流量的指示值计算。根据计算出的旋转电机内的温度，确定冷却气体流量的合适值。

9. 发明公开

EP1341287A2 Rotor for rotating electric machine 审中-公开
标题翻译：转子用于旋转电机
公开(公告)号：EP1341287A2
公开(公告)日：2003-09-03
申请号：EP03003274.2
申请日：2003-02-24
申请人： Hitachi, Ltd.
发明人： Komura, Akiyoshi , Ide, Kazumasa , Watanabe, Takashi , Hattori, Kenichi , Tsunoda, Tomoya , Odajima, Shinya , Aoyama, Hiroshi
IPC分类号： H02K3/24
CPC分类号： H02K3/24 , Y10T29/49073
摘要： A rotor for a rotating electric machine comprises a rotor core (1), and a plurality of rotor conductors (3) wound on the rotor core. At least one of the rotor conductors is provided with a cooling groove (10), and edges of at least one of the cooling grooves are rounded by a radius process to reduce peak stresses that may be induced around the edges of the cooling groove.

10. 发明公开

EP2680402A3 Electrical rotating machine 审中-公开
公开(公告)号：EP2680402A3
公开(公告)日：2017-11-15
申请号：EP13170639.2
申请日：2013-06-05
申请人： Hitachi, Ltd.
发明人： Kimura, Mamoru , Komura, Akiyoshi , Kori, Daisuke , Fujigaki, Tetsuo , Iizuka, Motonobu
IPC分类号： H02K1/27 , H02K1/22
CPC分类号： H02K3/04 , H02K1/223 , H02K1/2766 , Y02E10/725
摘要： An object of this invention is to provide an electrical rotating machine that minimizes a decrease in output while improving demagnetization resistance of permanent magnets.
In order to attain the above object, an electrical rotating machine includes: a shaft 6, a rotor 2 formed to rotate with rotation of the shaft 6, the rotor 2 being equipped with permanent magnets 3; a stator 1 disposed in opposed form on an outside-diametral side of the rotor 2 via a clearance with respect to the rotor 2; and anti-demagnetization conductors 7 extending in the axial direction of the shaft 6, the conductors 7 each being disposed inside the rotor 2; wherein: the anti-demagnetization conductors 7 are provided in pairs of two for each of magnetic poles of the rotor 2; the two anti-demagnetization conductors 7 to form a pair are electrically interconnected; and, inside the rotor 2, the two paired anti-demagnetization conductors 7 are disposed at different-polarity sides of two corresponding permanent magnets 3 in a circumferential direction of the rotor 2, the different-polarity sides each being more adjacent to the circumferential direction of the rotor 2 than to an end portion of one of the two corresponding permanent magnets 3 existing close to each other in one magnetic pole.

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