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公开(公告)号：EP2207253B1
公开(公告)日：2015-11-25
申请号：EP10000121.3
申请日：2010-01-08
申请人： Hitachi, Ltd.
CPC分类号： H02K1/276 , B60L11/14 , B60L2200/26 , B60L2210/40 , Y02T10/641 , Y02T10/70 , Y02T10/7077 , Y02T10/7241
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公开(公告)号：EP2339719A3
公开(公告)日：2014-01-29
申请号：EP10015990.4
申请日：2010-12-22
申请人： Hitachi, Ltd.
IPC分类号： H02K1/27
CPC分类号： H02K1/2766
摘要： A permanent magnet type rotating electric machine is comprised of a rotor and a stator opposed to each other keeping a predetermined clearance therebetween. The rotor having a rotor core formed by silicon steel plates being laminated in an axial direction of the rotor core, slots being formed near an outer periphery of the rotor core in the rotor core so as to be open at the outer periphery of the rotor core, permanent magnets being inserted into the slots respectively, and a non-magnetic sleeve covering the outer periphery of the rotor core. Each of the slots has inclined side faces outwardly broadening the slot in a radial direction of the rotor core.
Each of the permanent magnets is fixed into the slot with a force applied from the sleeve so as to directing toward a center of the rotor core and an pressure applied from the inclined side faces of the slot.-
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.
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。
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4.发明公开Rotator control device, rotator system, vehicle, electric car and electric generation system 审中-公开Rotorsteuerungsvorrichtung，Rotorsystem，Fahrzeug，Elektroauto und Stromerzeugungssystem
公开(公告)号：EP2464004A2
公开(公告)日：2012-06-13
申请号：EP11193105.1
申请日：2011-12-12
申请人： Hitachi Ltd.
发明人： Iwaji, Yoshitaka , Kaneko, Daigo , Mochizuki, Kento , Shinomiya, Takeshi , Kori, Daisuke , Masuda, Seikichi
IPC分类号： H02P29/02
CPC分类号： H02P29/02
摘要： To prevent demagnetization of a permanent magnet synchronous rotating machine, a rotating machine control device according to the present invention is a rotating machine (5) control device comprising: a power converter having a switch part (Sup to Swn) on each of a positive side and a negative side for each phase; and short circuit detection unit (36) for detecting a short circuit of the switch part (Sup to Swn), wherein a command to turn on positive-side switches and negative-side switches of a plurality of phases of the switch part (Sup to Swn) is issued in the case where the short circuit detection unit (36) detects the short circuit.
摘要翻译： 为了防止永磁同步旋转电机的退磁，根据本发明的旋转机械控制装置是旋转电机（5）控制装置，包括：功率转换器，其具有在正侧的每一个上的开关部分（Sup至Swn） 每相的负面; 以及用于检测开关部分（Sup至Swn）的短路的短路检测单元（36），其中将开关部分的多相的正侧开关和负侧开关的指令（Sup至 在短路检测单元（36）检测到短路的情况下，发出Swn。
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公开(公告)号：EP3396816A1
公开(公告)日：2018-10-31
申请号：EP17168378.2
申请日：2017-04-27
申请人： Hitachi, Ltd.
CPC分类号： H02K9/10 , H02K7/08 , H02K7/11 , H02K9/19 , H02K15/0006 , H02K15/16 , H02K49/102 , H02K2213/09
摘要： Maintainability of a rotary electric machine including a cooling fan is maintained, mechanical loss and noise caused by rotation of the cooling fan are reduced, and efficiency of the rotary electric machine is further enhanced and noise reduction is achieved in the rotary electric machine at the same time. The rotary electric machine includes a stator, a rotor, a shaft as a rotating shaft of the rotor, a frame, a first bearing, a second bearing, a cooling fan, a third bearing, and a torque limiter. The first bearing and the second bearing rotatably support the shaft. The third bearing is disposed between the first bearing and the second bearing. The cooling fan is rotatably supported by the third bearing and has the same axis of rotation as that of the rotor. The torque limiter includes an inner ring fixed on the shaft and an outer ring fixed on the cooling fan. The inner ring and the outer ring are brought to an asynchronous rotation at a predetermined or larger number of revolutions.
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6.发明公开Rotator control device, rotator system, vehicle, electric car and electric generation system 审中-公开转子控制装置，转子系统，车辆，电动汽车和发电系统
公开(公告)号：EP2464004A3
公开(公告)日：2017-08-02
申请号：EP11193105.1
申请日：2011-12-12
申请人： Hitachi, Ltd.
发明人： Iwaji, Yoshitaka , Kaneko, Daigo , Mochizuki, Kento , Shinomiya, Takeshi , Kori, Daisuke , Masuda, Seikichi
IPC分类号： H02P29/02
CPC分类号： H02P29/02
摘要： To prevent demagnetization of a permanent magnet synchronous rotating machine, a rotating machine control device according to the present invention is a rotating machine (5) control device comprising: a power converter having a switch part (Sup to Swn) on each of a positive side and a negative side for each phase; and short circuit detection unit (36) for detecting a short circuit of the switch part (Sup to Swn), wherein a command to turn on positive-side switches and negative-side switches of a plurality of phases of the switch part (Sup to Swn) is issued in the case where the short circuit detection unit (36) detects the short circuit.
摘要翻译： 为了防止永久磁铁同步旋转机械的退磁，本发明的旋转机械控制装置是一种旋转机械（5）的控制装置，其特征在于，具备：电力转换器，其具有在正方向侧的开关部（Sup〜Swn） 每个阶段都有消极的一面; 和短路检测单元（36），用于检测所述开关部分（Sup至Swn）的短路，其中用于接通所述开关部分的多个相的正侧开关和负侧开关的命令（Sup至 Swn）在短路检测单元（36）检测到短路的情况下发出。
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公开(公告)号：EP2339719B1
公开(公告)日：2016-03-30
申请号：EP10015990.4
申请日：2010-12-22
申请人： Hitachi, Ltd.
IPC分类号： H02K1/27
CPC分类号： H02K1/2766
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公开(公告)号：EP2207253A3
公开(公告)日：2014-01-29
申请号：EP10000121.3
申请日：2010-01-08
申请人： Hitachi Ltd.
IPC分类号： H02K1/27
CPC分类号： H02K1/276 , B60L11/14 , B60L2200/26 , B60L2210/40 , Y02T10/641 , Y02T10/70 , Y02T10/7077 , Y02T10/7241
摘要： A permanent magnet type rotary electric machine has a rotor having a rotor core and permanent magnets buried into the rotor core by being incorporated into respective permanent magnet slots. The permanent magnet slot per one pole is divided at least into four slots along an outer circumferential direction in the rotor core, and in respective rest core-portions between adjacent divided permanent magnet slots in the rotor core, a width of a first rest core-portion at the middle of each pole and a width of a second rest core-portion between adjacent poles of different polarities are formed larger than that of the others.
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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
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。
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10.发明公开Permanent magnet type rotary electric machine 有权永久性磁铁（Elektrische Drehmaschine mit Permanentmagnet）
公开(公告)号：EP2207253A2
公开(公告)日：2010-07-14
申请号：EP10000121.3
申请日：2010-01-08
申请人： Hitachi Ltd.
IPC分类号： H02K1/27
CPC分类号： H02K1/276 , B60L11/14 , B60L2200/26 , B60L2210/40 , Y02T10/641 , Y02T10/70 , Y02T10/7077 , Y02T10/7241
摘要： A permanent magnet type rotary electric machine has a rotor having a rotor core and permanent magnets buried into the rotor core by being incorporated into respective permanent magnet slots. The permanent magnet slot per one pole is divided at least into four slots along an outer circumferential direction in the rotor core, and in respective rest core-portions between adjacent divided permanent magnet slots in the rotor core, a width of a first rest core-portion at the middle of each pole and a width of a second rest core-portion between adjacent poles of different polarities are formed larger than that of the others.
摘要翻译： 永磁式旋转电机具有通过并入各永久磁铁槽中而具有转子芯和转子铁芯中的永磁体的转子。 每一极的永久磁铁槽至少在转子铁心中沿着外周方向划分成四个槽，并且在转子铁芯中相邻的分隔的永久磁铁槽之间的相应的剩余铁芯部分中， 每个极的中间的部分和不同极性的相邻极之间的第二剩余芯部的宽度形成为大于其他极的相对极之间的宽度。
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