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1. 发明专利

JP2010004690A Permanent-magnet dynamo-electric machine and elevator device using the same 有权
标题翻译：永磁电动机和使用该电动机的电梯装置
公开(公告)号：JP2010004690A
公开(公告)日：2010-01-07
申请号：JP2008162665
申请日：2008-06-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KITAMURA HIDEKI , KITAMURA MASAJI , TAJIMA FUMIO , NIHEI HIDEKI
IPC分类号： H02K1/16 , B66B1/34 , H02K1/18 , H02K1/27 , H02K21/22
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet dynamo-electric machine achieving a low-torque pulsation (approximately 1% in P-P) in a wide range from a rating torque to a maximum torque and a reduction in cost and preventing the falling-off of a coil by a simple configuration. SOLUTION: The permanent magnet dynamo-electric machine has a stator consisting of a stator core with stator salient poles and stator windings stored in slots formed in the stator core and a rotor consisting of a plurality of permanent magnets arranged at regular intervals in the peripheral direction and a rotor core forming magnetic paths for magnetic fluxes by the permanent magnets. In the permanent magnet dynamo-electric machine, the stator core is formed by laminating magnetic members. In the permanent-magnet dynamo-electric machine, the stator salient poles have projections extending in the peripheral direction to front ends, and a fully-opened opening width S and a mean opening width Sa satisfy (formula 1) regarding opening widths at the front ends among the stator salient poles adjacent in the peripheral direction. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种在从额定转矩到最大扭矩的广泛范围内实现低扭矩脉动（PP中约1％）的永磁发电机，并且降低成本并防止通过简单的配置脱落线圈。解决方案：永磁发电机具有定子，该定子由定子铁心和定子铁心组成，定子铁芯和定子绕组存储在形成在定子铁心中的槽中，转子由多个永久磁铁组成，圆周方向和由永磁体形成用于磁通量的磁路的转子芯。在永磁发电机中，定子铁芯通过层叠磁性部件形成。在永磁发电机中，定子凸极具有沿周向延伸到前端的突起，并且完全开口的开口宽度S和平均开口宽度Sa满足（公式1）关于前部的开口宽度在周向相邻的定子凸极之间结束。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009033907A Spindle motor 审中-公开
标题翻译：主轴电机
公开(公告)号：JP2009033907A
公开(公告)日：2009-02-12
申请号：JP2007196866
申请日：2007-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AMANO HISATO , ENOMOTO YUJI , KOMURO MATAHIRO , SATSUU YUUICHI , TAJIMA FUMIO
IPC分类号： H02K1/22 , H02K1/18 , H02K21/22
CPC分类号： G11B19/2009 , H02K1/146 , H02K21/22 , H02K29/03
摘要： PROBLEM TO BE SOLVED: To provide a spindle motor of high efficiency of which iron loss can be reduced. SOLUTION: The spindle motor includes a stator and a rotor. The rotor has a permanent magnet which is a high-resistance magnet of a specific resistance value being 0.2 mΩcm or higher, being partially insulated with a layer containing a fluorine compound containing at least one of rare earth elements or alkaline earth elements. The stator has a stator core having a yoke and a salient pole, as well as a stator coil. The stator core is made from a stacked steel plate. The salient pole and the yoke of the steel plate are formed by an etching process. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供可以降低铁损的高效率的主轴电机。
解决方案：主轴电机包括定子和转子。转子具有作为电阻值为0.2mΩcm以上的高电阻磁体的永久磁铁，与包含含有至少一种稀土元素或碱土金属的氟化合物的层部分绝缘。定子具有具有轭和凸极的定子芯以及定子线圈。定子铁心由堆叠钢板制成。钢板的凸极和磁轭通过蚀刻工艺形成。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008029113A Motor pump 有权
标题翻译：电机泵
公开(公告)号：JP2008029113A
公开(公告)日：2008-02-07
申请号：JP2006198875
申请日：2006-07-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAJIMA FUMIO , KITAMURA MASAJI , ENOMOTO YUJI , NOUMOTO TAKEJI , TAKARAI KENYA
IPC分类号： H02K7/14 , F04D13/06 , H02K1/02 , H02K1/04 , H02K1/14 , H02K5/04 , H02K21/14
CPC分类号： F04D13/064 , B60L1/003 , B60L1/02 , B60L3/0061 , B60L11/14 , B60L2210/40 , B60L2240/34 , B60L2240/36 , B60L2240/425 , B60L2270/142 , B60L2270/145 , F04D13/0633 , H02K1/02 , H02K1/145 , H02K5/12 , H02K7/14 , H02K21/145 , Y02T10/641 , Y02T10/642 , Y02T10/70 , Y02T10/7077 , Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To reduce the size of a motor pump to enhance the ease of mounting the pump in a vehicle. SOLUTION: A motor is so constructed that: coils 14 are annularly disposed in a stator core 13 having multiple lug-like magnetic poles alternately extended from either end to the opposite end, and a rotor 16 disposed inside the stator core 13 is rotated by energizing the coils 14. The pump is driven using this motor. Therefore, a small motor pump can be provided without a coil end, and the mountability in a vehicle can be enhanced. When such a motor pump discharges a cooling medium, a motor can be efficiently cooled. Further, when the stator core is molded with resin, the stator core can be constructed of a dust core, and the stator core can function as a partition wall separating a pump section and a motor section from each other. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了减小电动机泵的尺寸以提高将泵安装在车辆中的容易性。解决方案：电动机构造成：线圈14环形地设置在定子铁心13中，定子铁芯13具有从两端交替地延伸到相对端的多个凸耳状磁极，并且设置在定子铁心13内的转子16是通过使线圈14通电而旋转。使用该马达来驱动泵。因此，可以在没有线圈端的情况下设置小型电动泵，并且能够提高车辆的安装性。当这样的电动泵排出冷却介质时，可以有效地冷却电动机。此外，当定子铁芯用树脂模制时，定子铁心可以由压粉铁芯构成，并且定子铁芯可以用作将泵部分和电动机部分彼此分开的分隔壁。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006187131A PERMANENT MAGNET ROTARY ELECTRIC MACHINE, ELECTRIC MACHINE SYSTEM FOR ON-BOARD ELECTRIC ACTUATOR EMPLOYNG IT, AND ELECTRIC MACHINE SYSTEM FOR ELECTRIC POWER STEERING SYSTEM 审中-公开
公开(公告)号：JP2006187131A
公开(公告)日：2006-07-13
申请号：JP2004378583
申请日：2004-12-28
申请人： HITACHI LTD
发明人： TAJIMA FUMIO , KITAMURA MASAJI , ENOMOTO YUJI , KAWAMATA SHOICHI
IPC分类号： H02K21/16 , H02K1/14 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet rotary electric machine in which pulsation torque due to manufacture error is reduced. SOLUTION: The permanent magnet rotary electric machine comprises a permanent magnet rotor having permanent magnet poles arranged at equal interval, and a stator having a salient pole applied with an armature winding wherein the permanent magnet is constituted of a plurality of split permanent magnet segments. In the permanent magnet rotary electric machine where the salient pole of the stator is split, the stator or the rotor is provided with a means for correcting magnetic unbalance thereof in lower order than the number of poles of the permanent magnet or the number of salient poles. COPYRIGHT: (C)2006,JPO&NCIPI

5. 发明专利

JP2005237200A Electromotive vehicle using permanent magnet rotary electric machine, and permanent magnet rotary electric machine 有权
标题翻译：使用永磁电机的电动车和永磁电动机
公开(公告)号：JP2005237200A
公开(公告)日：2005-09-02
申请号：JP2005142080
申请日：2005-05-16
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： TAJIMA FUMIO , MATSUNOBU YUTAKA , KAWAMATA SHOICHI , SHIBUKAWA SUETARO , KOIZUMI OSAMU , ODA KEIJI
IPC分类号： H02K1/22 , H02K1/24 , H02K1/27 , H02K19/10 , H02K21/14
CPC分类号： Y02T10/641
摘要： PROBLEM TO BE SOLVED: To provide the permanent magnet rotary electric machine suppressing cogging torques and torque pulsations, while acquiring reluctance torque by an auxiliary magnetic pole, and to provide the electromotive vehicle which uses this permanent magnet rotary electric machine. SOLUTION: By having magnetic voids provided between a permanent magnet of a rotor and an auxiliary magnetic pole, mutually adjacent circumferentially to this permanent magnet, cogging torques and the toque pulsations are suppressed by making changes gentle in the distribution of the magnetic flux density in the surface of the rotor. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在通过辅助磁极获取磁阻转矩的同时，提供抑制齿槽转矩和转矩脉动的永久磁铁旋转电机，并提供使用该永久磁铁旋转电机的电动车辆。解决方案：通过在转子的永磁体和辅助磁极之间设置磁性空隙，与该永磁体相邻地相邻地相邻地邻接，齿槽转矩和扭矩脉动通过使磁通量的分布变化平缓来抑制转子表面的密度。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005198500A Rotary machine 审中-公开
标题翻译：旋转机
公开(公告)号：JP2005198500A
公开(公告)日：2005-07-21
申请号：JP2005091796
申请日：2005-03-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAMOTO NORIAKI , TANEDA KOKI , SHIBUKAWA SUETARO , TAJIMA FUMIO
IPC分类号： H02K5/18 , H02K9/22
摘要： PROBLEM TO BE SOLVED: To provide a motor and a generator enhancing heat radiation, while attaining miniaturization of the motor.
SOLUTION: The motor is made in a form of axially positioning in its both ends brackets 30, 40 to arrange in an inner side thereof a radial rib (protrusion 31), the motor is constituted to be assembled in such a manner that the rib 31 is arranged in between spaces of coil ends 14 adjacent to each other of a stator. By making the protrusion 31 serve as a refrigerant passage, a stator winding further improves the heat radiation, so as to provide the motor of high efficiency, miniaturization and light weight. An elastic body superior in thermal conductivity and insulation may be interposed in between the coil end 14 and the inner surface of the bracket.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供增强散热的电动机和发电机，同时实现电动机的小型化。解决方案：电动机制成轴向定位在其两端支架30,40中的形式，以在其内侧布置有径向肋（突起31），该电动机构造成以下述方式组装：肋31布置在相邻于定子的线圈端部14的空间之间。通过使突起31作为制冷剂通路，定子绕组进一步提高了散热，从而提供高效率，小型化和重量轻的电动机。导热性和绝缘性优异的弹性体可插入线圈端14和支架内表面之间。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004364464A Alternator for vehicle 有权
公开(公告)号：JP2004364464A
公开(公告)日：2004-12-24
申请号：JP2003163091
申请日：2003-06-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANAZAWA HIROYUKI , TAJIMA FUMIO , SASAKI SUSUMU , OKAMURA MASAKI , ISHIDA SAKAE , ISHIKAWA TOSHIO , UEDA TOSHIAKI , MORI YOSHIMI
IPC分类号： H02K3/28 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To provide an alternator for a vehicle that can reduce a magnetic noise, with regard to the alternator for a vehicle that is driven by an internal combustion engine to generate electric power and to supply the power to on-vehicle electrical loads and on-vehicle power sources. SOLUTION: This alternator 100 for a vehicle comprises a stator 1 having a stator iron core 2 on which a plurality of slots 2c are formed and on which a stator winding 3 is structured with a plurality of winding conductors 34 stored in each slot 2c; and a rotor 4 having a plurality of magnetic poles arranged in such a way as to have different polarity alternately in a rotating direction, and provided via a gap on the stator 1. In this alternator, a plurality of the winding conductors 34 arranged astride a plurality of the slots 2c so as to correspond to a plurality of the magnetic poles are arranged over a plurality of adjacent slots 2c to structure a phase winding. The magnetic noise problem can be solved by constituting a three-phase winding from three pieces of the phase winding, and by constituting the stator winding 3 from two pieces of the three-phase winding. COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2004357405A Motor 有权
公开(公告)号：JP2004357405A
公开(公告)日：2004-12-16
申请号：JP2003151917
申请日：2003-05-29
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： NEMOTO KANAKO , TAKANO YASUSHI , TAKAGI YUKISHI , TAJIMA FUMIO , NEZU AKIRA , YAMAZAKI TSUKASA , OKI TOSHIHARU , KIMURA MASAHIDE , FUJITA YASUSHI
IPC分类号： H02K1/18 , H02K1/27 , H02K21/14 , H02K29/03
CPC分类号： H02K29/03 , H02K2201/06
摘要： PROBLEM TO BE SOLVED: To suppress vibrations and noises excited by the radial electromagnetic vibration force of a motor. SOLUTION: The motor 100 is constituted as follows. A rotor 1 is divided into four rotor pieces 3, 4, 5, and 6 to the shaft length 2L of a group of rotor cores. For example, it is idealistic that each effective pole open angle of the four rotor pieces 3, 4, 5, and 6 is 0.29L, 0.71L, 0.71L, and 0.29L of the axial length, respectively. Further, a permanent magnet 2 of each rotor piece 3, 4, 5, and 6 is arranged so that a phase difference of the electric angle respectively becomes 0, π, 0, and π in the circumferential direction of the rotor 1. Also, when it is effective even if the idealistic shaft length is changed, the tolerance is made to ±0.1L to the shaft length. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2003319621A Method of manufacturing integrally molded magnet rotor 审中-公开
标题翻译：制造整体成型磁铁转子的方法
公开(公告)号：JP2003319621A
公开(公告)日：2003-11-07
申请号：JP2002121590
申请日：2002-04-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMURO MATAHIRO , TAJIMA FUMIO
IPC分类号： H02K15/03 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a rotor in which magnetic powder and laminated steel plates can be integrally molded even if organic materials are not used, and to provide its manufacturing method.
SOLUTION: A method of manufacturing an integrally molded magnet rotor has a process for processing for marking magnet positions steel plates, a process for laminating a plurality of the steel plates, a process for inserting magnetic powder into the magnet positions, and a process for pressurizing and energizing the magnetic powder. As a second means, the process for pressurizing and energizing the magnetic powder in a first means is a process which is carried out while orienting the magnetic powder according to an external magnetic field.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2001355460A ELECTRONIC THROTTLE CONTROL DEVICE 失效
公开(公告)号：JP2001355460A
公开(公告)日：2001-12-26
申请号：JP2001183023
申请日：2001-06-18
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： KANAZAWA HIROYUKI , TAJIMA FUMIO , HONDA YASUHIKO , SASAKI YASUSHI , MINEGISHI TERUHIKO , HASHIMOTO KIMIKATSU , YOSHIDA TATSUYA , KADOMUKAI YUZO
IPC分类号： F02D11/10 , F02D9/02
摘要： PROBLEM TO BE SOLVED: To provide an electronic throttle control device miniaturized on the whole. SOLUTION: In a motor 115, a stator 116 is provided with salient poles in a multiples of three, and magnetic pole sensors 119 are arranged at a set of three salient poles at the phase difference of 120 deg.. A coil 112 is a concentrated winding, and the whole of the coils is connected through Y-connection. The magnetic pole sensors 119 are arranged not at the center of the respective salient poles but in the state of being displaced in a reverse direction to the rotating direction of a rotor of the motor. The displacement angle generates torque in a forward direction except during high speed rotation which is in question, that is, even during low speed rotation if the pole sensors are arranged being displaced within a range up to an electrical angle of 30 deg. when the fundamental frequency of the motor is defined by an electrical angle of 360 deg.. Further, even in the case of a DC motor having a mechanical rectifier, a similar effect can be obtained by displacing the position of a brush by the same method.

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