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公开(公告)号：US20060244335A1
公开(公告)日：2006-11-02
申请号：US10500624
申请日：2003-04-11
CPC分类号： H02K1/278 , H02K29/03 , H02K2201/06
摘要： A permanent magnet electric motor 10 comprises a rotor 30 provided with two stages of permanent magnets in the axial direction on an outer circumferential face of a rotor iron core, and having a shaft shifted by a stage skew angle θr in electrical angle to decrease a first frequency component of cogging torque in the circumferential direction of the rotor iron core between two stages of the permanent magnets, a stator iron core 21 of cylindrical shape provided with the stator winding for producing a rotating magnetic field causing the rotor 30 to be rotated, and a stator 20 dividing the stator iron core 21 into plural blocks in the axial direction, and shifted by a stage skew angle θs in electrical angle to decrease a second frequency component of the cogging torque in the circumferential direction of the stator iron core 21.
摘要翻译： 永磁电动机10包括：转子30，其在转子铁芯的外周面上沿轴向设置有两级永磁体，并且具有以电角度偏移阶段倾斜角度的轴，以减少第一 在转子铁芯的两个阶段的永久磁铁的周向上的齿槽转矩的频率分量，具有定子绕组的圆筒形的定子铁芯21，用于产生使转子30旋转的旋转磁场，以及 定子20将定子铁芯21沿轴向分割为多个块，并且以电角度偏移台斜面角度，以减小定子铁芯21的圆周方向上的齿槽转矩的第二频率分量。
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公开(公告)号：US07095192B1
公开(公告)日：2006-08-22
申请号：US11305162
申请日：2005-12-19
申请人： Masahiko Fujita , Haruyuki Kometani
发明人： Masahiko Fujita , Haruyuki Kometani
IPC分类号： H02P5/00
CPC分类号： H02P9/02 , F02N11/0859 , F02N2011/0896 , F02P11/04 , H02P2101/45
摘要： An automotive generator/motor is driven by a battery via an inverter. Resistance 2Ra0 is expressed by 2Ra0=Vmax/√{square root over (3)} Iamax, where Vmax is a maximum voltage applicable across any two terminals from the inverter and Iamax is a maximum current which must be fed from the inverter into each of the terminals when the maximum voltage Vmax is applied for maximizing torque produced by the automotive generator/motor at a power factor of 1 under voltage saturation conditions, and the armature winding is configured such that resistance 2Ra across any two terminals satisfies a relationship expressed by 0.8Ra0≦2Ra≦3.8Ra0.
摘要翻译： 汽车发电机/电动机由电池通过变频器驱动。 电阻2Ra0由2Ra0 = Vmax /√{平方根（3 Iamax，其中Vmax是适用于逆变器的任何两个端子的最大电压）表示，Iamax是必须从逆变器馈送到每个端子的最大电流 当施加最大电压Vmax以在电压饱和条件下使功率因数为1时由汽车发电机/电动机产生的转矩最大化，并且电枢绕组被配置为使得跨任何两个端子的电阻2Ra满足由0.8Ra0 < = 2Ra <= 3.8Ra0。
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公开(公告)号：US07067948B2
公开(公告)日：2006-06-27
申请号：US10681343
申请日：2003-10-09
CPC分类号： H02K1/278 , H02K21/16 , H02K2201/06
摘要： A permanent-magnet rotating machine includes a rotor having a rotor core carrying on a curved outer surface multiple permanent magnets arranged in two rows along an axial direction. The permanent magnets in one row are skewed from those in the other row in a circumferential direction by a row-to-row skew angle (electrical angle) θe. A stator having a tubular stator core in which the rotor disposed includes stator coils for producing a rotating magnetic field for rotating the rotor. A lower limit of the row-to-row skew angle θe larger than 30 degrees (electrical angle). A ratio of cogging torque occurring in the absence of skew to cogging torque occurring when the permanent magnets are skewed, at a row-to-row skew angle of 30 degrees is calculated based on the cogging torque ratio, the row-to-row skew angle θe, and B-H curve properties of the stator core. An upper limit of the row-to-row skew angle θe is not larger than the maximum value at which the cogging torque ratio does not exceed the calculated cogging torque ratio at 30 degrees.
摘要翻译： 永磁旋转机械包括具有转子芯的转子，转子芯沿弯曲的外表面沿着轴向布置成两排的多个永磁体。 一行中的永磁体在圆周方向上与另一排中的永磁体相互倾斜一行到一行的倾斜角（电角度）θe。 具有管状定子芯的定子，其中设置的转子包括用于产生用于旋转转子的旋转磁场的定子线圈。 行至歪斜角度θe的下限大于30度（电角度）。 根据齿槽转矩比计算出当以永久磁铁歪斜，以30度的行歪斜角度发生的倾斜不发生齿槽转矩的齿槽转矩与齿槽转矩的比率， 角度θe和BH曲线特性。 行间行偏斜角度θe的上限不大于齿槽转矩比不超过30度时的计算齿槽转矩比的最大值。
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公开(公告)号：US20060192456A1
公开(公告)日：2006-08-31
申请号：US11415139
申请日：2006-05-02
CPC分类号： H02K1/278 , H02K21/16 , H02K2201/06
摘要： A permanent-magnet rotating machine includes a rotor having a rotor core carrying on a curved outer surface multiple permanent magnets arranged in two rows along an axial direction. The permanent magnets in one row are skewed from those in the other row in a circumferential direction by a row-to-row skew angle (electrical angle) θe. A stator having a tubular stator core in which the rotor disposed, includes stator coils for producing a rotating magnetic field for rotating the rotor. A lower limit of the row-to-row skew angle θe larger than 30 degrees (electrical angle). A ratio, of cogging torque occurring in the absence of skew to cogging torque occurring when the permanent magnets are skewed, at a row-to-row skew angle of 30 degrees is calculated based on the cogging torque ratio, the row-to-row skew angle θe, and B-H curve properties of the stator core. An upper limit of the row-to-row skew angle θe is not larger than the maximum value at which the cogging torque ratio does not exceed the calculated cogging torque ratio at 30 degrees.
摘要翻译： 永磁旋转机械包括具有转子芯的转子，转子芯沿弯曲的外表面沿着轴向布置成两排的多个永磁体。 一行中的永磁体在圆周方向上与另一排中的永磁体相互倾斜一行到一行的倾斜角（电角度）θe。 一种具有管状定子芯的定子，其中设置有转子，包括用于产生用于旋转转子的旋转磁场的定子线圈。 行至歪斜角度θe的下限大于30度（电角度）。 根据齿槽转矩比，以行排列为基准计算在不存在倾斜的情况下发生的齿轮转矩与永久磁铁偏斜发生的齿槽转矩的比率， 倾斜角度θ和定子铁心的BH曲线特性。 行间行偏斜角度θe的上限不大于齿槽转矩比不超过30度时的计算齿槽转矩比的最大值。
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公开(公告)号：US07034424B2
公开(公告)日：2006-04-25
申请号：US10875621
申请日：2004-06-25
IPC分类号： H02K21/12
CPC分类号： H02K1/278 , H02K29/03 , H02K2201/06
摘要： A permanent magnet rotating machine includes a rotor with a permanent magnet having circumferential magnetic poles with a skew at boundaries between magnetic poles of the permanent magnet, and a stator having a stator iron core in an almost cylindrical shape and convex poles protruding inwardly, the rotor being disposed within the stator. A skew angle of the skew is smaller than a theoretical angle θs (electrical angle) and larger than one-half the theoretical angle θs, wherein the theoretical angle θs is defined as, θs=180×(number of magnetic poles in the rotor)/smallest integer of which both the number of magnetic poles in the rotor and the number of magnetic poles in the stator are factors) [deg.].
摘要翻译： 一种永久磁铁旋转机械，具有具有永久磁铁的转子，该永久磁铁具有在永久磁铁的磁极之间的边界处具有偏斜的圆周磁极和具有大致圆柱形状的定子铁心和向内突出的凸极的定子， 设置在定子内。 偏斜的偏斜角小于理论角θ（电角度）并且大于理论角θ的一半，其中理论角θ< SUB> s 定义为<？in-line-formula description =“In-line Formulas”end =“lead”？>θ = 180x（磁极数 转子）/最小整数，其中转子中的磁极数和定子中的磁极数都是因子）°。<？在线公式描述=“在线公式”结束 =“尾巴”？>
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36.发明授权公开(公告)号：US06894413B2
公开(公告)日：2005-05-17
申请号：US10478052
申请日：2002-12-19
CPC分类号： H02K21/14 , F03D9/25 , F05B2220/7068 , F05B2240/40 , F05B2240/511 , H02K7/1823 , H02K7/183 , H02K7/1838 , H02K21/16 , Y02E10/725
摘要： A dynamo electric machine includes a rotor having magnetic poles with permanent magnets and a stator having armature windings concentratedly wound around teeth. When the number of pole pairs of the magnetic poles of the rotor is P, diameter of the rotor is D (meters), and a spatial harmonic order of a predetermined harmonic component of an armature magnetomotive force of the rotor is N ((N=P to the 1.5th power)×(N to the minus 4-th power)×(the square of P)×D
摘要翻译： 发电机包括具有永磁体的磁极的转子和具有集中缠绕在齿上的电枢绕组的定子。 当转子的磁极的极数为P时，转子的直径为D（米），并且转子的电枢磁动势的预定谐波分量的空间谐波次数为N（（N = P到1.5μS功率）x（N到负4次方）x（P的平方）xD <0.6（以米为单位）。
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公开(公告)号：US10367388B2
公开(公告)日：2019-07-30
申请号：US14346239
申请日：2011-09-30
申请人： Kenta Kaneko , Haruyuki Kometani
发明人： Kenta Kaneko , Haruyuki Kometani
摘要： The main motor for a railway vehicle is rotationally driven upon receiving an AC power supplied from an inverter circuit that includes a switching element formed by using a wide bandgap semiconductor. The inverter circuit applies a voltage having a PWM waveform to the main motor for a railway vehicle in at least part of a speed range of an electric vehicle. The stator of the main motor for a railway vehicle is configured to include an annular stator core provided with a plurality of slots in a circumferential direction and coils that are wound on the stator core and are accommodated in the slots, and includes a stator winding that is three-phase star-connected and is composed of parallel circuits the number of which is the same as the number of poles for each phase.
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公开(公告)号：US09172279B2
公开(公告)日：2015-10-27
申请号：US13983652
申请日：2012-02-02
申请人： Kosuke Sekiya , Moriyuki Hazeyama , Takeshi Mori , Hideaki Arita , Haruyuki Kometani , Masaya Inoue
发明人： Kosuke Sekiya , Moriyuki Hazeyama , Takeshi Mori , Hideaki Arita , Haruyuki Kometani , Masaya Inoue
摘要： An automotive embedded permanent magnet rotary electric machine can suppress increases in torque ripples and cogging torque, reduce core loss near a stator, and increase magnetic torque and reluctance torque. In the automotive embedded permanent magnet rotary electric machine, a first permanent magnet and a second permanent magnet that constitute a magnetic pole are embedded so as to line up in a main direction of rotation of magnetic poles of a rotor core and are embedded so as to be radially outwardly convex in a region that extends from a leading end portion to a trailing end portion in the main direction of rotation of the magnetic poles, and the first permanent magnet is formed into an integrated body that extends from the leading end portion in the main direction of rotation of the magnetic poles beyond a pole center toward a trailing side.
摘要翻译： 汽车嵌入式永磁旋转电机可以抑制扭矩波动和齿槽转矩的增加，减少定子附近的铁心损耗，增加磁矩和磁阻转矩。 在汽车嵌入式永久磁铁旋转电机中，构成磁极的第一永久磁铁和第二永久磁铁被嵌入以在转子铁芯的磁极的主旋转方向上排列，并嵌入到 在从磁头的主旋转方向的前端部向后端部延伸的区域中径向向外凸出，并且第一永久磁铁形成为从第一永久磁铁的前端部延伸的一体体 磁极的主旋转方向超过杆中心朝向后方。
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公开(公告)号：US20090267440A1
公开(公告)日：2009-10-29
申请号：US12093737
申请日：2006-02-01
摘要： The present invention provides a dynamoelectric machine that can reduce 12 f vibrational force and suppress generation of irritating electromagnetic noise in a vicinity of 2,000 Hz in an idling state. In the present invention, an armature winding includes first and second three-phase windings, the first three-phase winding is configured by delta-connecting respective phase windings, and the second three-phase winding is configured so as to be Y-connected to the first three-phase winding by connecting respective phase windings in series to respective output ends of the first three-phase winding. The first and second three-phase windings are each installed in the stator core such that respective phase currents have a phase difference from each other. In addition, angles between center lines of adjacent slot opening portions of the stator core central angles of adjacent slot opening portions of the stator have a nonuniform pitch, and a turn ratio between the first three-phase winding and the second three-phase winding is within a range of 1.25 to 2.25.
摘要翻译： 本发明提供一种能够减少12f振动力并抑制在空转状态下在2000Hz附近产生刺激性电磁噪声的电动机。 在本发明中，电枢绕组包括第一和第二三相绕组，第一三相绕组由三相连接各相绕组构成，第二三相绕组被配置为与Y相连接 通过将各相绕组串联连接到第一三相绕组的相应输出端的第一三相绕组。 第一和第二三相绕组各自安装在定子铁心中，使得各自的相电流彼此具有相位差。 此外，定子的相邻槽开口部的定子铁心中心角的相邻槽口部的中心线之间的角度具有不均匀的间距，第一三相绕组和第二三相绕组之间的匝数比为 在1.25至2.25的范围内。
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公开(公告)号：US07405505B2
公开(公告)日：2008-07-29
申请号：US10567354
申请日：2004-08-05
IPC分类号： H02K5/04
摘要： A rotary electric machine includes a frame; a stator whose stator-slot number Ns is 12; a rotor whose rotor-pole number Np is 8, the rotor being disposed inside the stator. The frame has a frame thickness T(θ) at mechanical angle θ, with respect to a reference line that connects the inner circumferential center of the frame with an arbitrary point, other than the center, around the center that is circularly expanded in a Fourier series. The difference between the stator-slot number Ns and the rotor-pole number Np is k (=|Ns−Np|). Stress-relieving spaces and are located in portions of the frame in an arrangement that does not have 90-degree mechanical angle rotational symmetry, in such a way that the sum P of inclusion ratios for the k-th component Tk and the Np-th component TNp, which are the Fourier series expansion coefficients for the frame thickness T(θ) expressed by equation (2) P = ( T k + T N p ) / ∑ n = 0 ∞ T n × 100 [ % ] , ( 2 ) is less than 12%. According to this configuration, mechanical strength of the frame and its producibility are maintained, and cogging torque caused by magnetic-circuit distortion in an iron core generated due to the frame shape is also reduced.
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