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1. 发明专利

JP2004015880A Permanent-magnet synchronous motor and elevator apparatus using it 审中-公开
标题翻译：永磁同步电机和电梯装置
公开(公告)号：JP2004015880A
公开(公告)日：2004-01-15
申请号：JP2002163708
申请日：2002-06-05
申请人： Hhitachi Mito Engineering Co Ltd , Hitachi Ltd , 日立水戸エンジニアリング株式会社 , 株式会社日立製作所
发明人： YAMAMOTO KOKI , NIHEI HIDEKI , IYODA HIROMI , HINO TOKUAKI , ITO MOTOYA , KITAMURA MASAJI , TAJIMA FUMIO
IPC分类号： H02K1/18 , H02K1/22 , H02K1/27 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To reduce cogging torque in an inner rotor-type permanent-magnet synchronous motor.
SOLUTION: The air gap in the portion of teeth opposed to the surface of a rotor is constituted as follows: the air gap is smaller in the center of the teeth than in the other parts. At the same time, the ratio (τm/τp) of the length τm in the circumferential direction of the magnetized portions of permanent magnets to the pole pitch τp of the permanent magnets is greater than 0.87 and less than 0.91 (0.87
摘要翻译：要解决的问题：为了减少内转子型永磁同步电动机的齿槽转矩。解决方案：与转子表面相对的齿部分中的气隙如下构成：气隙在齿的中心比其他部分小。同时，永久磁铁的磁化部分的圆周方向的长度τm与永磁体的磁极间距τp的比（τm/τp）大于0.87且小于0.91（0.87 <τm/τp <0.91）。版权所有（C）2004，JPO

2. 发明专利

JP2005253168A Permanent magnet dynamo-electric machine and electric power steering device using it 审中-公开
标题翻译：永磁电机电动机及电动转向装置
公开(公告)号：JP2005253168A
公开(公告)日：2005-09-15
申请号：JP2004058562
申请日：2004-03-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAJIMA FUMIO , KITAMURA MASAJI , HINO TOKUAKI , KAWAMATA SHOICHI , KOIZUMI OSAMU , ITO MOTOYA
IPC分类号： B62D5/04 , H02K1/02 , H02K1/14 , H02K1/18 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet dynamo-electric machine, which is small and light and high-torque and is little in static friction, and an electric power steering device excellent in operability using it.
SOLUTION: A stator 2 comprises a stator iron core 4 and stator winding 5. The stator iron core 4 comprises an annular stator yoke part 41 and a plurality of salient poles 42 which are made in parts to the stator yoke part 41 and are fixed to the stator yoke part 41. The stator winding 5 is wound each on the stator salient pole 42. The rotor 3 is rotatably supported by the stator 2, and has a permanent magnet 6. Here, an amorphous iron core is used as the iron core of the stator salient pole 42.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种小而轻，高扭矩并且静摩擦小的永磁发电机，以及使用它的可操作性优异的电动助力转向装置。定子2包括定子铁芯4和定子绕组5.定子铁心4包括环形定子磁轭部分41和多个凸极42，它们以定子磁轭部分41的一部分形成，固定在定子磁轭部41上。定子绕组5分别卷绕在定子凸极42上。转子3由定子2可旋转地支撑，并具有永磁体6.这里，使用非晶铁芯作为定子凸极42的铁芯。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2009106044A Rotating electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2009106044A
公开(公告)日：2009-05-14
申请号：JP2007274579
申请日：2007-10-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYATA KENJI , ISHIKAWA YOSHITOSHI , ITO MOTOYA , ENOMOTO YUJI , KOYAMA TAKAYUKI
IPC分类号： H02K1/14 , H02K1/02 , H02K1/18 , H02K1/24
摘要： PROBLEM TO BE SOLVED: To provide a claw-pole rotating electric machine having high electrical characteristics. SOLUTION: A stator 1 is constructed from two stator stages of an A-core 10 having claw magnetic poles 12, 13 and a B-core 20 having claw magnetic poles 22, 23. A coil having a plurality of phases is mixed and disposed on at least one stator stage. The A-core 10 and the B-core 20 are fixed at such a position that phases thereof are shifted at an electrical angle of approximately 90 degrees in a peripheral direction around a rotating shaft. The number of turns of the coil is defined such that the electrical angle phases of magnetic fluxes induced at the stator stages of the upper and lower two stages are shifted by approximately 90 degrees. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有高电特性的爪极旋转电机。解决方案：定子1由具有爪磁极12,13和具有爪磁极22,23的B芯20的A型芯10的两个定子级构成。具有多相的线圈被混合并设置在至少一个定子级上。 A芯10和B芯20被固定在这样的位置，即相位绕旋转轴的周向以大约90度的电角度移动。线圈的匝数被限定为使得在上两级和下两级的定子级感应的磁通量的电角相位偏移大约90度。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008148469A Spindle motor, disk driving device and manufacturing method of stator core 审中-公开
标题翻译：主轴电机，磁盘驱动器和定子芯的制造方法
公开(公告)号：JP2008148469A
公开(公告)日：2008-06-26
申请号：JP2006333940
申请日：2006-12-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAJIMA FUMIO , ABE TERUYOSHI , ITO MOTOYA , ISHIKAWA YOSHITOSHI , KITAMURA MASAJI , YASUJIMA TOSHIYUKI
IPC分类号： H02K1/18 , G11B19/20 , H02K1/02 , H02K1/14 , H02K15/02 , H02K21/22
CPC分类号： H02K15/022 , G11B17/028 , G11B17/038 , G11B19/2009 , H02K1/146 , Y10T29/49009
摘要： PROBLEM TO BE SOLVED: To provide a spindle motor where an iron loss and cogging torque can be reduced. SOLUTION: In the spindle motor having a stator and a rotator, the stator is provided with a stator core having a yoke and a salient pole and a stator coil. The stator core is formed of a laminated steel plate. The salient pole and the yoke of the steel plate are formed by etching work. The thickness of the steel plate is 0.05 to 0.30 mm. It is desirable that the steel plate is a silicon steel plate having crystal grains. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供可以减少铁损和齿槽转矩的主轴电机。解决方案：在具有定子和转子的主轴电机中，定子设置有具有轭和凸极和定子线圈的定子芯。定子铁芯由层叠钢板形成。钢板的凸极和轭体通过蚀刻加工形成。钢板的厚度为0.05〜0.30mm。希望钢板是具有晶粒的硅钢板。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2008022631A Rotary electric machine 有权
标题翻译：旋转电机
公开(公告)号：JP2008022631A
公开(公告)日：2008-01-31
申请号：JP2006192286
申请日：2006-07-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ABE TERUYOSHI , ITO MOTOYA , TAJIMA FUMIO , ISHIKAWA YOSHITOSHI
IPC分类号： H02K1/02 , H02K1/18 , H02K1/27
CPC分类号： H02K15/024 , H02K1/06 , H02K1/16 , H02K1/276
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine in which iron loss can be reduced.
SOLUTION: The rotary electric machine is provided with a stator and a rotator, the stator has a stator core having teeth and a slot, and stator winding arranged in the slot, and the stator core is formed of a laminated steel plate. The teeth and the slot of the steel plate are formed by etching processing, and the thickness of the steel plate is in the range of 0.05 to 0.30 mm. In particular, it is desirable that the steel plate used here be a silicon steel plate which has crystal grains.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供可以减少铁损的旋转电机。解决方案：旋转电机设置有定子和转子，定子具有具有齿和槽的定子芯，定子绕组布置在槽中，定子芯由层压钢板形成。钢板的齿和槽由蚀刻加工形成，钢板的厚度在0.05〜0.30mm的范围内。特别地，这里使用的钢板最好是具有晶粒的硅钢板。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2009268258A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2009268258A
公开(公告)日：2009-11-12
申请号：JP2008114764
申请日：2008-04-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYATA KENJI , ISHIKAWA YOSHITOSHI , ITO MOTOYA , ENOMOTO YUJI , KOYAMA TAKAYUKI
IPC分类号： H02K3/28
摘要： PROBLEM TO BE SOLVED: To provide a multiphase (N phase system) rotary electric machine with three-phase coils.
SOLUTION: In the rotary electric machine consisting of a rotor 61 and a stator 62, coil groups 51, 52, 53, 54, and 55 arranged in the stator are constituted of intermingled three-phase coils of U, V and W, respectively. Mixing ratio of the number of turns of three-phase coils U, V and W is set so that the electrical angle phase of stator flux generated from each coil group is shifted by about 2π/N from each other in the order of coil groups 51, 52, 53, 54, and 55.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有三相线圈的多相（N相系统）旋转电机。解决方案：在由转子61和定子62组成的旋转电机中，布置在定子中的线圈组51,52,53,54和55由U，V和W的混合三相线圈构成，分别。设定三相线圈U，V，W的匝数的混合比，使得从线圈组产生的定子磁通的电角相位按线圈组51的顺序相互偏移大约2π/ N ，52,53,54和55.版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009038843A Alternator for vehicle and manufacturing method thereof 审中-公开
标题翻译：用于车辆的制造方法及其制造方法
公开(公告)号：JP2009038843A
公开(公告)日：2009-02-19
申请号：JP2007198284
申请日：2007-07-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANAZAWA HIROYUKI , ISHIKAWA YOSHITOSHI , ABE TERUYOSHI , ITO MOTOYA
IPC分类号： H02K1/02 , H02K1/06 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To provide an alternator for reducing iron loss compared with a conventional one. SOLUTION: An alternator for vehicle is provided with a stator iron core made of a laminate steel plate and having teeth and a slot, and a stator having a stator winding disposed on the slot. A portion equivalent to the teeth of a steel plate having 0.05-0.30 mm thickness and a portion equivalent to the slot thereof are formed by etching. Especially, the steel plate is preferably a silicon steel plate having crystal particles. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种与常规的相比减少铁损的交流发电机。解决方案：车辆用交流发电机具有由层叠钢板制成的具有齿和槽的定子铁心和具有设置在槽上的定子绕组的定子。通过蚀刻形成等同于具有0.05-0.30mm厚度的钢板的齿的部分和与其槽相当的部分。特别地，钢板优选为具有结晶粒子的硅钢板。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2009027904A Rotating electrical machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2009027904A
公开(公告)日：2009-02-05
申请号：JP2007274578
申请日：2007-10-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOYAMA TAKAYUKI , ENOMOTO YUJI , ISHIKAWA YOSHITOSHI , ITO MOTOYA , MIYATA KENJI , MAKIYAMA KOTA
IPC分类号： H02K1/14 , H02K1/18
摘要： PROBLEM TO BE SOLVED: To provide a rotating electrical machine, such as a motor and a generator, having improved efficiency.
SOLUTION: A claw magnetic pole 12 constituting a claw pole motor is constituted by using a laminated iron plate, such as, for example, an electromagnetic steel plate, a cold-rolled steel sheet and an electromagnetic stainless steel, and a magnetic pole is constituted by laminating a magnetic body such as an iron plate in the circumferential direction of a stator. A stator core is disposed so that the laminating direction of the iron plate is set to be parallel with the magnetic flux flowing-in direction from the rotor. Cores adjacent in the circumferential direction have a structure that does not allow them to be connected to each other, electrically or magnetically (laminated by interposing a non-magnetic and non-conductive material between them).
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有提高的效率的诸如马达和发电机的旋转电机。解决方案：构成爪极马达的爪形磁极12通过使用层压铁板，例如电磁钢板，冷轧钢板和电磁不锈钢，以及磁性极通过在定子的周向上层叠铁板等磁性体而构成。定子铁芯被设置为使得铁板的层叠方向设定成与来自转子的磁通流入方向平行。在圆周方向上相邻的心轴具有不允许电气或磁性彼此连接的结构（通过在它们之间插入非磁性和非导电材料来层叠）。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2009005421A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2009005421A
公开(公告)日：2009-01-08
申请号：JP2007160849
申请日：2007-06-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENOMOTO YUJI , ISHIKAWA YOSHITOSHI , ITO MOTOYA , KANAZAWA HIROYUKI
IPC分类号： H02K1/14 , H02K1/02 , H02K1/18 , H02K5/04 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To solve the problem that a large-scale manufacturing apparatus is required when a stator of a claw pole type rotary electric machine is made of an annular molding having a plurality of integrally molded claw magnetic poles.
SOLUTION: A claw pole type rotary electric machine can be manufactured using a small-scale manufacturing apparatus because a stator thereof is divided into blocks for each magnetic pole pair. Further, since a magnetic flux leaking to an adjacent magnetic pole pair can be eliminated, a magnetic flux leaking to an unwanted part can be reduced. Still further, since a stator winding is not covered with a stator, inductance can be reduced.
COPYRIGHT: (C)2009,JPO&INPIT

10. 发明专利

JP2005027369A Motor 审中-公开
标题翻译：发动机
公开(公告)号：JP2005027369A
公开(公告)日：2005-01-27
申请号：JP2003186759
申请日：2003-06-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HORIUCHI HISAAKI , HINO TOKUAKI , KANEDA JUNYA , KOMURO MATAHIRO , ITO MOTOYA
IPC分类号： H02K1/16 , H02K1/14 , H02K1/18 , H02K15/02 , H02K29/00
摘要： PROBLEM TO BE SOLVED: To provide a high efficiency/high performance motor rotating in one direction in which iron loss is reduced by suppressing a variation in flux density of the stator and minimizing the part of high iron loss in the stator core. SOLUTION: The motor rotating in one direction comprises a stator core in which the forward end part of teeth (umbrella part) is laterally asymmetric and extends in the rotating direction of the rotor to reach the vicinity of the forward end part of an adjacent teeth. COPYRIGHT: (C)2005,JPO&NCIPI

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