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1. 发明专利

JP2004129448A Permanent-magnet rotary electric machine 审中-公开
公开(公告)号：JP2004129448A
公开(公告)日：2004-04-22
申请号：JP2002293154
申请日：2002-10-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHATA RYOICHI , OHARAGI HARUO , KIKUCHI SATOSHI , TAKAHASHI MIYOSHI
IPC分类号： H02K1/22 , H02K1/27 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide a powerful permanent-magnet rotary electric machine by suppressing an increase in iron loss due to armature-reaction magnetic flux and making effective use of reluctance torque.
SOLUTION: The permanent-magnet rotary electric machine comprises a stator wherein armature windings are installed in a plurality of slots formed in a stator core; and a rotor wherein permanent magnets 5 are housed in a plurality of permanent magnet insertion holes formed in a rotor core. A rotor core 2 is provided with recessed portions 7 which are formed between magnetic poles (between magnets) in proximity to the circumferential surface of the rotor core with the permanent magnets 5 housed therein; and air gaps 20 which are formed in the rotor core between magnetic poles (between magnets) and suppresses the flow of armature-reaction magnetic flux produced by the armature winding. The rotor core 2 is combined with a rotor core 3 provided only with a reluctance magnetic circuit, and a magnetic path for armature-reaction magnetic flux is thereby defined.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2010081659A Electric motor and electric compressor using the same 审中-公开
标题翻译：电动马达和电动压缩机使用它
公开(公告)号：JP2010081659A
公开(公告)日：2010-04-08
申请号：JP2008243644
申请日：2008-09-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIRA BUNSHIRO , TAKAHATA RYOICHI , WAKUI SHINICHI , KIKUCHI SATOSHI , SENOO MASAHARU , NOMA KEIJI
IPC分类号： H02K1/18 , F04C29/00 , H02K1/12
摘要： PROBLEM TO BE SOLVED: To provide an electric motor wherein vibration of a stator core is effectively dispersed to reduce noise propagated to the outside.
SOLUTION: Multiple portions (19, 37, 38T) of plane contact of the stator core 14 with a frame 2 are formed in the circumferential direction so that the number of the plane contact portions is different from the number of the teeth 17 of the stator core 14. The stator core 14 includes a first stator core 14A and a second stator core 14B divided into at least two in the direction of steel plate lamination. The portions (19, 37, 38T) of plane contact of the adjacent first stator core 14A and second stator core 14B with the frame are positioned in different positions in the circumferential direction.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种电动机，其中定子铁心的振动被有效地分散以减少传播到外部的噪声。解决方案：定子芯14与框架2的平面接触的多个部分（19,37,38T）在圆周方向上形成，使得平面接触部分的数量与齿数17不同定子芯14包括在钢板层叠方向上分成至少两个的第一定子铁芯14A和第二定子铁心14B。相邻的第一定子铁芯14A和第二定子铁心14B与框架的平面接触部分（19,37,38T）在圆周方向上位于不同的位置。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2003079083A Permanent magnet dynamo-electric machine and compressor 审中-公开
标题翻译：永磁电动机和压缩机
公开(公告)号：JP2003079083A
公开(公告)日：2003-03-14
申请号：JP2001262643
申请日：2001-08-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHARAGI HARUO , WAKUI SHINICHI , TAKAHATA RYOICHI , SENOO MASAHARU , NOMA KEIJI , KIKUCHI SATOSHI , KIMURA MAMORU , TAKAHASHI MIYOSHI , HIRAYAMA HIROSHI , SESHIMO KOJI
IPC分类号： H02K1/14 , H02K1/16 , H02K1/24 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet dynamo-electric machine, which uses a concentrated winding stator and a magnet-embedded rotor, wherein good performance may be achieved even when driven by a 120-degree and 180-degree electrification inverter not provided with a position sensor.
SOLUTION: The permanent magnet dynamo-electric machine has a stator provided with armature winding in a plurality of slots formed on the core and a rotor having a plurality of permanent magnets stored in a plurality of permanent magnet insertion holes formed on the core. The permanent magnets protrude from the outer peripheral surface of the rotor core in roughly arc shapes while at the same time forming recesses between the poles on the outer peripheral surface of the rotor core.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种使用集中绕组定子和磁体嵌入式转子的永磁式发电机，其中即使在未提供120度和180度带电逆变器驱动的情况下也可获得良好的性能与位置传感器。解决方案：永磁发电机具有在形成在芯上的多个槽中设置有电枢绕组的定子和具有存储在形成在芯上的多个永磁体插入孔中的多个永磁体的转子。永磁体从转子铁心的外周面大致圆弧状突出，同时在转子铁心的外周面上的极之间形成凹部。

4. 发明专利

JP2012080713A Permanent magnet-type rotary electric machine and compressor using the same 审中-公开
标题翻译：永磁电机类型旋转电机和使用它的压缩机
公开(公告)号：JP2012080713A
公开(公告)日：2012-04-19
申请号：JP2010225634
申请日：2010-10-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WAKUI SHINICHI , TAKAHATA RYOICHI , NOMA KEIJI , SENOO MASAHARU
IPC分类号： H02K1/27 , F04C29/00 , H02K1/22 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet-type rotary electric machine displaying high efficiency and high performance in a wide range from low speed to high speed and to provide a compressor using the electric machine.SOLUTION: A rotor of the permanent magnet-type rotary electric machine includes: a rotor core; a plurality of insertion holes formed in the rotor core; and a plurality of permanent magnets inserted into the insertion holes. The insertion hole into which the permanent magnet is inserted is divided into at least two per pole of the rotor. The permanent magnets inserted into the insertion holes are asymmetrically arranged to a magnetic pole center of the rotor. Thus, reduction of influence of an anti-magnetic field by armature magnetic flux, a torque increase when the same current is energized, reduction of an eddy current loss of the permanent magnet and a weak field operation with small current are realized. Thus, the highly efficient and high performance permanent magnet-type rotary electric machine suitable for high speed rotation is provided.
摘要翻译：要解决的问题：提供一种从低速到高速的宽范围内显示高效率和高性能的永磁式旋转电机，并提供使用该电机的压缩机。永磁式旋转电机的转子包括：转子芯; 形成在所述转子铁心中的多个插入孔; 以及插入到插入孔中的多个永久磁铁。将永磁体插入的插入孔分成至少两个转子的每极。插入到插入孔中的永磁体不对称地设置在转子的磁极中心。因此，实现了通过电枢磁通减少抗磁场的影响，当相同的电流被激励时的转矩增加，永磁体的涡流损耗的减小以及小电流的弱磁场运行。因此，提供了适用于高速旋转的高效率和高性能的永磁式旋转电机。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2007074898A Permanent magnet type rotary electric machine and compressor using same 审中-公开
标题翻译：永磁电机类型旋转电机和压缩机使用相同
公开(公告)号：JP2007074898A
公开(公告)日：2007-03-22
申请号：JP2006337722
申请日：2006-12-15
申请人： Hitachi Industrial Equipment Systems Co Ltd , Hitachi Ltd , 株式会社日立産機システム , 株式会社日立製作所
发明人： WAKUI SHINICHI , KIKUCHI SATOSHI , OHARAGI HARUO , TAKAHATA RYOICHI , NOMA KEIJI
IPC分类号： H02K1/24 , H02K1/27 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet type rotary electric machine that deliversa a high power output and develops low noise. SOLUTION: A permanet magnet type rotary electric machine 11 has a stator 7 in which a concentrated armature winding 9 is applied so as to surround teeth 0 within a plurality of slots 13 formed on a stator core 12, and a rotor 1 in which permanent magnets 3 are housed in a plurality of permanent magnet inserting holes 14 formed at a rotor core 2. A high power output and low noise can be achieved by keeping a magnetic pole angle of θ1 of the rotor core 2 to be within a range between 100 °and 120°, and forming a recess 15 between poles on the outer periphery of the rotor core 2. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种提供高功率输出并且产生低噪声的永磁式旋转电机。解决方案：永久磁铁式旋转电机11具有定子7，在该定子7中施加集中的电枢绕组9，以便围绕形成在定子铁芯12上的多个槽13内的齿0围绕，永磁体3容纳在形成在转子铁芯2上的多个永久磁铁插入孔14中。通过将转子铁心2的磁极角θ1保持在一定范围内，能够实现高功率输出和低噪音在100°和120°之间，并且在转子铁芯2的外周上的磁极之间形成凹槽15.版权所有：（C）2007，JPO＆INPIT

6. 发明专利

JP2005027422A Permanent magnet type rotating electric machine and electric compressor using the same 有权
标题翻译：永磁电机类型旋转电机和使用该电机的电动压缩机
公开(公告)号：JP2005027422A
公开(公告)日：2005-01-27
申请号：JP2003190036
申请日：2003-07-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHATA RYOICHI , WAKUI SHINICHI , OHARAGI HARUO , IDE KAZUMASA , KIKUCHI SATOSHI
IPC分类号： H02K1/22 , H02K1/27 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet type rotating electric machine of which a noise problem is settled by approximating the induced electromotive waveform to a sine wave for a reduced harmonics magnet flux, without degrading the effective magnetic flux (basic wave magnetic flux) of a permanent magnet.
SOLUTION: The permanent magnet type rotating electric machine comprises a stator on which an armature coil is applied by intense winding, and a rotor 3 in which a permanent magnet 14 is stored in a plurality of permanent magnet insert holes 13 formed at a rotor core. A plurality of slits 10a and 10b extending from the inner peripheral side of the rotor to the outer peripheral side are formed at the rotor core on the outer peripheral side of the permanent magnet of the rotor 3. In the circumferential width of the slit, an outer peripheral side L2 of the rotor core is narrower than an inner peripheral side L1, while, in distance between adjoining slits, a distance θ1 on the outer peripheral side of the rotor core is narrower than a distance θ2 on the inner peripheral side. A recess 11 is formed between poles on the outer peripheral surface of the rotor core so that a magnetic pole angle θ7 of the rotor core is 90-120° in terms of electric angle.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种永磁式旋转电机，其通过将感应电动波形近似为正弦波，以减小谐波磁通量而使噪声问题得到稳定，而不降低有效磁通量（基本波磁通量）。解决方案：永久磁铁式旋转电机包括通过强磁绕组施加电枢线圈的定子，以及转子3，其中永磁体14存储在形成在多个永磁体插入孔13中的多个永磁体插入孔13中。转子芯。在转子3的永磁体的外周侧的转子铁芯上形成有从转子的内周侧向外周侧延伸的多个狭缝10a，10b。在狭缝的周向宽度方向转子铁心的外周侧L2比内周侧L1窄，而在相邻狭缝之间的距离中，转子铁芯的外周侧的距离θ1比内周侧的距离θ2窄。在转子铁心的外周面上的极之间形成凹部11，使得转子铁芯的磁极角度θ7以电角度为90-120°。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

DE60118515D1 未知
公开(公告)号：DE60118515D1
公开(公告)日：2006-05-18
申请号：DE60118515
申请日：2001-08-28
申请人： HITACHI LTD
发明人： KANAZAWA HIROSHI , MIYATA KENJI , KAWABATA KAORU , MAKI KOHJI , TAHARA KAZUO , SASAKI SUSUMU , TAKAHATA RYOICHI
IPC分类号： H02K1/22 , H02K19/22 , H02K1/27 , H02K15/03 , H02K21/04
摘要： The invention relates to a vehicular alternator which can effectively utilize the magnetic flux of a permanent magnet (7) disposed between claw-type magnetic poles (5A, 5B) and can improve an output of the alternator. The vehicular alternator comprises a rotor (1) and a stator (2) constituted by coiling stator windings (15) over a stator core (14) the rotor (1) comprising a pair of claw-type magnetic poles (5A, 5B) arranged in an opposed relation a permanent magnet (7) disposed between adjacent two of a plurality of claws (5Aa, 5Ba) provided on the pair of claw-type magnetic poles (5A, 5B), and field windings (6) coiled radially inward of the plurality of claws (5Aa, 5Ba). Each of the plurality of claws (5Aa, 5Ba) of the rotor (1) is formed to have a shape coming into contact with the whole of a magnetic pole surface of the permanent magnet (7).

8. 发明专利

ES2811755T3 Sistema de accionamiento para motor síncrono 未知
公开(公告)号：ES2811755T3
公开(公告)日：2021-03-15
申请号：ES11865668
申请日：2011-05-13
申请人： HITACHI LTD
发明人： IWAJI YOSHITAKA , AOYAGI SHIGEHISA , TAKAHATA RYOICHI , TOBARI KAZUAKI
IPC分类号： H02P6/08 , H02P21/00 , H02P6/06 , H02P6/17 , H02P6/18 , H02P6/182 , H02P6/28 , H02P21/14 , H02P21/18 , H02P21/22 , H02P21/24 , H02P21/28 , H02P23/14 , H02P23/16 , H02P23/18 , H02P27/04 , H02P27/08
摘要： Un sistema para un motor síncrono, que comprende un inversor (3, 32) configurado para enviar una corriente alterna continua y un motor (4) síncrono trifásico conectado al inversor, y un dispositivo (2) de control configurado para detectar la información de posición del rotor sobre la base del potencial (Vn) de punto neutro del motor síncrono trifásico y controlar el inversor enviando una señal de modulación del ancho de pulso al inversor, en el que el dispositivo (2) de control está adaptado para realizar una operación de modulación del ancho de pulso de la operación de conmutación del inversor desde el estado del vector cero en el que el estado de conmutación de cada fase es todo negativo o todo positivo, y se genera durante un ciclo del portador hasta que se alcanza el estado del vector cero original, tres o cuatro tipos de estados de conmutación distintos del vector cero desplazando el tiempo de operación de conmutación de cada fase, y medios para muestrear los potenciales de punto neutro adaptados para muestrear los potenciales de punto neutro en al menos dos tipos de estados de conmutación de las tres o cuatro tipos de estados de conmutación, y medios para estimar una posición del rotor del motor síncrono trifásico adaptado para estimar la posición del rotor sobre la base del valor de muestreo a partir de los medios para el muestreo, caracterizado por que el dispositivo (2) de control está adaptado para proporcionar, en la operación de modulación del ancho de pulso del inversor, un período en el que cualquiera de las tres fases se mantiene en estado siempre positivo o siempre negativo durante un ciclo del portador, para realizar la modulación del ancho de pulso utilizando los dos fases restantes en este período, y para generar, desplazando el tiempo de operación conmutación de estas dos fases, tres tipos de estados de conmutación distintos del vector cero, y en donde los medios para el muestreo están adaptados para muestrear el potencial de punto neutro en dos tipos de estados de conmutación de los tres tipos de estados de conmutación.

9. 发明专利

DE112013006906T5 Ansteuersystem für Wechselstromelektromotor und Leistungssystem 未知
公开(公告)号：DE112013006906T5
公开(公告)日：2015-12-24
申请号：DE112013006906
申请日：2013-04-05
申请人： HITACHI LTD
发明人： IWAJI YOSHITAKA , TAKAHATA RYOICHI , SUZUKI TAKAHIRO
IPC分类号： H02P6/08 , H02P6/16
摘要： Es wird eine Antriebsvorrichtung als ein System zum Verwirklichen einer stabilen Ansteuerung von einem Halt über einen Langsamlaufbereich ohne Verwendung eines Rotorpositionssensors eines Wechselstrommotors vorgeschlagen, die eine hohe praktische Anwendbarkeit aufweist, die verschiedene Motoren behandeln kann, ohne von einer Struktur eines Wechselstrommotors, von einer Charakteristik eines verwendeten Materials oder dergleichen abzuhängen. Die Ansteuervorrichtung kann durch stabiles Ansteuern des Wechselstrommotors mit konstanter Drehzahl durch Bereitstellen einer Schaltung zum Detektieren eines Potentials des virtuellen Sternpunkts für den Wechselstrommotor und einer Schaltung zum Erzeugen einer Referenzspannung, die sich von dem Potential unterscheidet, und durch Verstärken einer Differenz beider, um dadurch durch eine Änderung der Position eines Rotors eine Urspannung bereitzustellen, und durch Schalten einer leitenden Phase des Wechselstrommotors auf der Grundlage der Urspannung verwirklicht werden. Obwohl ein Wert der Urspannung durch eine Art oder eine Spezifikation des Motors geändert wird, kann die Art oder die Spezifikation des Motors durch Einstellen einer Verstärkung des Verstärkers mit praktischer Anwendbarkeit behandelt werden.

10. 发明专利

DE112012006220T5 Ansteuervorrichtung für einen Elektromotor 未知
公开(公告)号：DE112012006220T5
公开(公告)日：2015-01-15
申请号：DE112012006220
申请日：2012-04-12
申请人： HITACHI LTD
发明人： IWAJI YOSHITAKA , TAKAHATA RYOICHI , SUZUKI TAKAHIRO
IPC分类号： H02P6/16
摘要： Ansteuerungsvorrichtung 1000 für einen Elektromotor, die aufweist: einen Inverter 3, der einen Motor 4 ansteuert, einen Spannungsteilerschaltkreis 2, der als Sternpunktpotential-Erfassungseinheit dient, die ein Sternpunktpotential einer Statorwicklung des Motors 4 erfasst; und eine Steuerung 1, die eine Läuferposition des Motors 4 auf Basis des erfassten Sternpunktpotentials schätzt und die den Inverter 3 auf Basis des Schätzergebnisses steuert. Ein Massepotential der Steuerung 1 ist auf das negative Potential oder das negative Potential einer Gleichspannung gesetzt, die den Inverter 3 versorgt. Der Spannungsteilerschaltkreis 2 erfasst das Sternpunktpotential in Bezug auf das negative Potential oder das positive Potential. Die Steuerung 1 schätzt die Läuferposition auf Basis einer Differenz zwischen einem ersten Sternpunktpotential, das während des EIN/AUS-Vorgangs des Inverters 3 erfasst wurde, und einem ersten feststehenden Referenzpotential (2/3) Emax, sowie auf Basis einer Differenz zwischen einem zweiten Sternpunktpotential, das während des EIN/AUS-Vorgangs erfasst wurde, und einem zweiten feststehenden Referenzpotential (1/3) Emax.

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