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公开(公告)号：US4914361A
公开(公告)日：1990-04-03
申请号：US362239
申请日：1989-06-06
摘要： Disclosed is a speed controlling method and apparatus in which a suitable current or voltage command is given to a moving body on the basis of the relation between a speed detection signal obtained by detecting the speed of the moving body and an externally supplied speed command signal. The speed of the moving body is controlled in a manner so that the speed of the moving body is successively detected, a speed error which is a difference between a speed command value and a speed detection value is calculated whenever the speed of the moving body is detected, and the speed of the moving body is successively controlled on the basis of a driving signal obtained by an arithmetic operation on the basis of the speed error and a set control gain, and that, on the other hand, a present speed error quantity is calculated on the basis of speed errors obtained whenever the detection of the speed of the moving body have been carried out predetermined number of times, the speed error quantity obtained presently is compared with and the speed error quantity obtained last, and the set gain is corrected or updated in accordance with the result of comparison of the present and last speed error quantities to thereby minimize the speed error quantity.
摘要翻译： 公开了一种速度控制方法和装置，其中，根据通过检测移动体的速度获得的速度检测信号和外部提供的速度指令信号之间的关系，向移动体提供合适的电流或电压指令。 控制移动体的速度，使得运动体的速度被连续地检测到，只要移动体的速度为运动体的速度，就计算作为速度指令值与速度检测值之差的速度误差 基于通过基于速度误差和设定控制增益的算术运算获得的驱动信号连续地控制移动体的速度，另一方面，当前速度误差量 只要移动体的速度的检测已经执行了预定次数，将当前获得的速度误差量与最后获得的速度误差量进行比较，则基于所获得的速度误差来计算，并且设定的增益为 根据当前和最后速度误差量的比较结果进行校正或更新，从而使速度误差量最小化。
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公开(公告)号：US09853509B2
公开(公告)日：2017-12-26
申请号：US14404416
申请日：2012-05-28
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K1/27 , H02K1/272 , H02K1/274 , H02K1/2753 , H02K1/276 , H02K1/2773
摘要： Torque is improved in a composite torque rotating electric machine that uses permanent magnets having a low residual magnetic flux density such as ferrite magnets, and includes: a stator comprising armature windings arranged at a fixed interval at multiple positions on the inner periphery; a rotor which has a permanent magnet in a cylindrical core comprising laminated magnetic steel sheets and is arranged inside of the stator; and magnetic flux blocking units provided across the circumferential direction on the outer periphery of the rotor that block the closed loop magnetic flux generated around the stator windings. The magnetic flux blocking units can be multiple permanent magnets, with a non-magnetic body such as an air gap disposed between them. The distance between the permanent magnets and the non-magnetic part can be smaller than the interval at which the armature windings are arranged.
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公开(公告)号：US07847462B2
公开(公告)日：2010-12-07
申请号：US12403260
申请日：2009-03-12
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
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公开(公告)号：US07777389B2
公开(公告)日：2010-08-17
申请号：US11776579
申请日：2007-07-12
申请人： Teruyoshi Abe , Motoya Ito , Fumio Tajima , Yoshihisa Ishikawa
发明人： Teruyoshi Abe , Motoya Ito , Fumio Tajima , Yoshihisa Ishikawa
IPC分类号： H02K1/06
CPC分类号： H02K15/024 , H02K1/06 , H02K1/16 , H02K1/276
摘要： A rotating electrical machine comprises a stator and a rotor; the stator comprising a stator core having teeth and slots, and stator windings disposed in the slots, wherein the stator core is made of laminated steel sheets, teeth and slots of the steel sheet are made by etching, and the thickness of the steel sheet is between 0.05 mm and 0.30 mm. Specifically, it is preferable that the steel sheet used herein be a silicon steel sheet containing crystalline particles.
摘要翻译： 旋转电机包括定子和转子; 所述定子包括具有齿和槽的定子芯和设置在所述槽中的定子绕组，其中所述定子芯由层压钢板制成，所述钢板的齿和槽由蚀刻制成，并且所述钢板的厚度为 在0.05mm和0.30mm之间。 具体而言，优选本文使用的钢板为含有结晶粒子的硅钢板。
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公开(公告)号：US20090309449A1
公开(公告)日：2009-12-17
申请号：US12541813
申请日：2009-08-14
申请人： Fumio Tajima , Yutaka Matsunobe , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keijiro Oda
发明人： Fumio Tajima , Yutaka Matsunobe , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keijiro Oda
IPC分类号： H02K21/16
CPC分类号： H02K19/103 , B60L15/025 , B60L2200/26 , H02K1/246 , H02K1/276 , H02K3/28 , H02K21/16 , H02K29/03 , H02K2213/03 , Y02T10/641 , Y02T10/643
摘要： A rotating electric machine comprises a stator having stator salient poles, three-phases windings would around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles. The three-phase windings are concentratively wound around each of the stator salient poles, with windings of each phase wound around at more than one stator salient pole. The windings of each phase have a phase difference of voltage between at least one of the windings and the other.
摘要翻译： 旋转电机包括具有定子凸极的定子，围绕所述定子凸极的三相绕组，可旋转地保持在所述定子内的转子和插入所述转子中并与所述定子凸极相对定位的永磁体。 三相绕组集中缠绕在每个定子凸极上，每相绕组围绕多于一个定子凸极。 每相的绕组具有至少一个绕组与另一绕组之间的电压相位差。
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公开(公告)号：US20090189471A1
公开(公告)日：2009-07-30
申请号：US12181901
申请日：2008-07-29
申请人： Hisato Amano , Yuji Enomoto , Matahiro Komuro , Yuichi Satsu , Fumio Tajima
发明人： Hisato Amano , Yuji Enomoto , Matahiro Komuro , Yuichi Satsu , Fumio Tajima
IPC分类号： H02K21/22
CPC分类号： G11B19/2009 , H02K1/146 , H02K21/22 , H02K29/03
摘要： A spindle motor having a stator and a rotor includes: a stator core provided in the stator having salient-poles; a stator coil arranged between the salient-poles; a rotor; and a permanent magnet provided in the rotor. The stator core includes a stack of steel sheets whose salient-poles are formed by etching. The permanent magnet includes a ferromagnetic material consisting mainly of iron. The ferromagnetic material has formed in laminae on a surface thereof a layer of a fluorine compound containing an alkali element, an alkaline earth element or a rare earth element formed in laminae. Near an interface between the ferromagnetic material and the layer of the fluorine compound, iron exists in the layer of the fluorine compound such that a basic crystal structure of the fluorine compound is not changed and the fluorine compound containing the iron exists in the layer of the fluorine compound.
摘要翻译： 具有定子和转子的主轴电动机包括：定子芯，其设置在具有凸极的定子中; 布置在凸极之间的定子线圈; 转子 以及设置在转子中的永磁体。 定子铁芯包括通过蚀刻形成凸极的钢板叠层。 永磁体包括主要由铁组成的铁磁材料。 铁磁材料在其表面上形成有层状的氟化合物，其含有形成在层中的碱金属元素，碱土金属元素或稀土元素。 在铁磁材料和氟化合物层之间的界面附近，铁存在于氟化合物的层中，使得氟化合物的碱性晶体结构不变，含铁的氟化合物存在于 氟化合物。
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公开(公告)号：US07417346B2
公开(公告)日：2008-08-26
申请号：US11748180
申请日：2007-05-14
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.
摘要翻译： 永磁旋转电机在预定的电流和电压条件下不会发生偏斜，以防止转矩降低并且降低脉动转矩，使机器振动较小，噪音较小。 永磁旋转电机包括具有多相定子绕组的定子和具有内部嵌入转子芯中的多个永磁体的转子。 转子的核心形状在深度（纵向）方向上是均匀的，而在永久磁铁的布置中没有偏斜。 对于每个极，永磁体相对于旋转方向是对称的，但是相对于深度方向是不规则的。 从极间永磁体产生的磁通几乎等于从极中心永磁体产生的磁通量。
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公开(公告)号：US20070205689A1
公开(公告)日：2007-09-06
申请号：US10558366
申请日：2004-05-26
申请人： Kanako Nemoto , Yasushi Takano , Michiyuki Takagi , Fumio Tajima , Akira Nezu , Tsukasa Yamazaki , Shunji Ooki , Masahide Kimura , Yasushi Fujita
发明人： Kanako Nemoto , Yasushi Takano , Michiyuki Takagi , Fumio Tajima , Akira Nezu , Tsukasa Yamazaki , Shunji Ooki , Masahide Kimura , Yasushi Fujita
CPC分类号： H02K29/03 , H02K2201/06
摘要： The vibration and noise excited by the electromagnetic exciting force in the radial direction of an electric motor are suppressed. In an electric motor 100, a rotor 1 is divided into four rotor pieces 3, 4, 5, and 6 for an axial length of 2L of one group of the rotor core, and for example, the four rotor pieces 3, 4, 5, and 6 are ideally 0.29L, 0.71L, 0.71L, and 0.29L in axial length in the axial direction, and permanent magnets 2 of the rotor pieces 3, 4, 5, and 6 are arranged in the circumferential direction so that the phase differences of the electrical angle are 0, π, 0, and π. Further, when an effect is obtained even if the ideal axial length is changed, the tolerance of the aforementioned axial length is ±0.1L.
摘要翻译： 由电动机的径向电磁激励力引起的振动和噪声被抑制。 在电动机100中，将转子1分割为一组转子铁心的2L的轴向长度的4个转子片3,4,5，6，例如四个转子片3,4,5 6是轴向长度理想的0.29L，0.71L，0.71L，0.29L，转子片3,4,5，和6的永久磁铁2沿圆周方向排列， 电角度的相位差为0，pi，0和pi。 此外，即使理想的轴向长度发生变化也能获得效果，上述轴向长度的公差为±0.1L。
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公开(公告)号：US07233089B2
公开(公告)日：2007-06-19
申请号：US11296398
申请日：2005-12-08
CPC分类号： H02K29/03 , H02K1/276 , H02K1/2766
摘要： A permanent magnet rotating electric machine uses no skewing under a predetermined current and voltage condition to prevent torque from decreasing and to decrease pulsation torque to make the machine less vibrating and less noisy. The permanent magnet rotating electric machine includes a stator with multi-phase stator windings and a rotor with a plurality of permanent magnets internally embedded in a rotor core. The core shape of the rotor is uniform in the depth (longitudinal) direction with no skewing in the arrangement of the permanent magnets. The permanent magnets are symmetrical with respect to the rotation direction, but irregular with respect to the depth direction, for each pole. A magnetic flux generated from the between-pole permanent magnets almost equals a magnetic flux generated from the pole-center permanent magnet.
摘要翻译： 永磁旋转电机在预定的电流和电压条件下不会发生偏斜，以防止转矩降低并且降低脉动转矩，使机器振动较小，噪音较小。 永磁旋转电机包括具有多相定子绕组的定子和具有内部嵌入转子芯中的多个永磁体的转子。 转子的核心形状在深度（纵向）方向上是均匀的，而在永久磁铁的布置中没有偏斜。 对于每个极，永磁体相对于旋转方向是对称的，但是相对于深度方向是不规则的。 从极间永磁体产生的磁通几乎等于从极中心永磁体产生的磁通量。
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100.发明申请公开(公告)号：US20060279154A1
公开(公告)日：2006-12-14
申请号：US11509619
申请日：2006-08-25
申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
发明人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
IPC分类号： H02K21/12
摘要： A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
摘要翻译： 在转子的永久磁铁与沿永久磁铁的周向配置的辅助磁极部之间设有磁隙。 获得转子表面的磁通密度分布的逐渐变化，并且抑制齿槽转矩和转矩脉动。 通过获得根据辅助磁极的磁阻转矩，可以获得抑制齿槽转矩和转矩脉动的永久磁铁旋转电机，并且还可以提供具有永磁电动机的电动车辆。
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