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公开(公告)号：US20200220398A1
公开(公告)日：2020-07-09
申请号：US16637578
申请日：2018-07-06
摘要： A rotor of the permanent magnet rotating electric machine includes a rotor core, a plurality of magnets, and magnetic slits. Each of the magnetic slits is formed in a core region being a region between magnets of the plurality of magnets, and a gap. The magnetic slits are regions having a lower magnetic permeability than a magnetic permeability of the core region. One end of each of the magnetic slits, which is closer to an outer periphery of the rotor, is positioned in a portion of the core region on the same direction side as a direction of a force in a circumferential direction of the rotor, and another end closer to the rotation axis center of the rotor is positioned on the magnetic pole center or in a portion of the core region on a side opposite to the direction of the force.
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公开(公告)号：US20180248433A1
公开(公告)日：2018-08-30
申请号：US15759845
申请日：2016-02-26
发明人： Kodai OKAZAKI , Masatsugu NAKANO , Kazumasa ITO , Yu HIROTANI , Hiroko IKEDA , Koji KAWAMURA
摘要： In the armature winding of a rotary electric machine, in a series coil portion group, the numbers of turns of conducting wire in the coil portions that have an electrical angular phase difference of θk that satisfies θ1
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公开(公告)号：US20160056696A1
公开(公告)日：2016-02-25
申请号：US14779445
申请日：2014-03-04
发明人： Shinichi ITO , Sachiko KAWASAKI , Yu HIROTANI , Masatsugu NAKANO , Toyoaki UDO , Hiroyuki MATSUO
IPC分类号： H02K15/085 , H02K15/04
CPC分类号： H02K15/085 , H02K1/165 , H02K3/12 , H02K15/04 , H02K2213/03
摘要： A stator core includes an inner ring core composed of a plurality of teeth arranged in the circumferential direction and a connection portion connecting inner circumferential portions of the plurality of teeth; and an outer ring core to be joined to an outer circumferential surface of the inner ring core. Slots of the stator core each have a circumferential direction width (a) on an inner circumference side smaller than a circumferential direction width (b) on an outer circumference side. A stator coil composed of conductive coils including a plurality of slot accommodated portions and a plurality of coil end portions connecting the slot accommodated portions is inserted and placed in the slots from an outer side in the radial direction of the inner ring core.
摘要翻译： 定子铁心包括由周向上排列的多个齿构成的内环铁心和连接多个齿的内圆周部分的连接部分; 以及要与内环芯的外周面接合的外圈芯。 定子铁心的槽在圆周方向宽度（a）上在比外周侧的周向宽度（b）小的内周侧。 由包括多个槽容纳部分的导电线圈和连接槽容纳部分的多个线圈端部构成的定子线圈从内环芯的径向外侧插入并放置在槽中。
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公开(公告)号：US20180062466A1
公开(公告)日：2018-03-01
申请号：US15559869
申请日：2016-07-29
发明人： Takahiro MIZUTA , Moriyuki HAZEYAMA , Kazumasa ITO , Shinichi YAMAGUCHI , Masatsugu NAKANO , Yoshiharu TAKASHIMA , Yoshiki OKADA , Masafumi OGAWA
摘要： In a rotary electric machine, a conductive member surrounds a shaft and a plurality of permanent magnets provided on an outer peripheral portion of the shaft as a whole, and a holding member surrounds the shaft, the plurality of permanent magnets, and the conductive member as a whole. A conductivity of the conductive member is higher than a conductivity of the permanent magnet. The conductive member includes first and second opposing portions that oppose each other via a gap in a circumferential direction. An inter-opposing portion region existing between the first and second opposing portions is positioned within a circumferential direction range of an inter-magnet region existing between permanent magnets that are adjacent to each other in the circumferential direction.
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5.发明申请公开(公告)号：US20160181876A1
公开(公告)日：2016-06-23
申请号：US14906874
申请日：2014-02-26
发明人： Sachiko KAWASAKI , Atsushi SAKAUE , Hisashi NAMURA , Shinichi ITO , Satoru AKUTSU , Masatsugu NAKANO , Tooaki UDO
CPC分类号： H02K1/16 , B62D5/0409 , B62D5/0463 , H02K3/12 , H02K3/28 , H02K15/024
摘要： A stator core for a rotating electrical machine includes an annular yoke portion; a tooth group fitted to an inner side of the yoke portion and formed such that both ends in a circumferential direction on an inner circumferential side of adjacent teeth are integrally connected with each other by a thin connection portion; and a slot for accommodating a stator winding. The yoke portion has grooves at regular intervals in an inner circumferential surface thereof and extending in an axial direction of the stator, the grooves each having a V shape such that a cross section thereof perpendicular to the axial direction opens toward an inner side of the stator core. Each tooth has, at an outer-circumferential-side end thereof, a fitting portion whose cross section perpendicular to the axial direction is formed in a wedge shape so as to allow the tooth to be fitted along the corresponding groove.
摘要翻译： 一种用于旋转电机的定子铁心包括环形磁轭部分; 安装在所述轭部的内侧的齿组，其形成为使得相邻齿的内周侧的圆周方向的两端通过薄的连接部而一体地连结， 以及用于容纳定子绕组的槽。 轭部在其内周面具有规则间隔的槽，并且在定子的轴向方向上延伸，所述槽各自具有V形，使得其垂直于轴向的截面朝向定子的内侧开口 核心。 每个齿的外周侧的端部具有与轴向垂直的截面形成为楔形的嵌合部，以使齿沿着相应的槽嵌合。
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公开(公告)号：US20150357892A1
公开(公告)日：2015-12-10
申请号：US14758298
申请日：2013-04-22
发明人： Masatsugu NAKANO , Yu HIROTANI , Satoru AKUTSU , Toyoaki UDO , Yuji TAKIZAWA
CPC分类号： H02K29/03 , B62D5/0424 , H02K1/2773 , H02K1/278 , H02K3/12 , H02K3/28 , H02K11/33 , H02K21/14 , H02K2201/06 , H02K2213/03 , H02P6/10 , H02P25/22
摘要： To provide a permanent magnet type motor having reduced torque ripple, in which torque ripples for electric angle sixth order and twelfth order are both reduced with a small skew angle.Driving is performed such that phases of currents flowing in two sets of three-phase armature windings 26-1 and 26-2 are different from each other by 20 degrees to 40 degrees in electric angle. A rotor 11 is composed of m stages of rotor component units arranged in the axial direction. The m stages of rotor component units are skewed to have a stage-skew structure such that a skew angle θ (unit: degree) between the adjacent units satisfies 26/m≦θ≦43.2/m (m is an integer equal to or greater than 2) in electric angle.
摘要翻译： 为了提供具有减小的扭矩波动的永磁式电动机，其中电角度第六级和第十二级的扭矩波动都以小的倾斜角度减小。 执行驱动，使得在两组三相电枢绕组26-1和26-2中流动的电流的相位在电角度彼此相差20度至40度。 转子11由沿轴向配置的m级转子部件单元构成。 转子部件单元的m级倾斜以具有阶偏斜结构，使得倾斜角度和角度; （单位：度）在电角度中满足26 / m＆nlE;＆amp; thetas;＆nlE; 43.2 / m（m是等于或大于2的整数）。
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公开(公告)号：US20170085138A1
公开(公告)日：2017-03-23
申请号：US15311786
申请日：2015-04-28
CPC分类号： H02K1/16 , H02K1/14 , H02K1/146 , H02K1/165 , H02K1/18 , H02K1/27 , H02K1/2773 , H02K3/28 , H02K5/06 , H02K11/33 , H02K15/026 , H02K2213/03
摘要： A permanent magnet motor includes: a stator including: a stator core in which teeth are respectively arranged circumferentially so as to protrude radially inward from an annular core back; an armature winding that is mounted to the stator core; and a frame that holds the stator core in an internally fitted state; and a rotor that includes a rotor core and permanent magnets, the armature winding being constituted by a plurality of coils that are respectively wound so as to be concentrated on the teeth, wherein: inner circumferential ends of adjacent teeth are connected together by a connecting portion; and 0.122≦(t2+t3)/r4≦0.202 is satisfied, where t2 is a thickness of the core back, t3 is a thickness of the frame, and r4 is an outside radius of the frame.
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8.发明申请ROTATING ELECTRIC MACHINE WITH A BUILT-IN CONTROL DEVICE AND ELECTRIC POWER ASSIST STEERING SYSTEM 审中-公开具有内置控制装置和电动助力转向系统的旋转电机公开(公告)号：US20170008554A1
公开(公告)日：2017-01-12
申请号：US15116379
申请日：2014-11-18
发明人： Yu HIROTANI , Masatsugu NAKANO , Hiroyuki WAKU , Hiroyuki AKITA , Koji KISE , Hiroyasu IWABUKI , Kosuke NAKANO
IPC分类号： B62D5/04 , H02K9/22 , H02K11/215 , H02K11/22 , H02K11/33
CPC分类号： H02K11/02 , B62D5/0406 , B62D5/046 , H02K9/22 , H02K11/022 , H02K11/024 , H02K11/215 , H02K11/33
摘要： A rotating electric machine with a built-in control device that can be downsized. The rotating electric machine with a built-in control device includes a rotor including a permanent magnet of sensor use provided on a rear side of a rotor shaft, a front side housing fixed with a first bearing supporting a front side of the rotor shaft, a motor frame including a rotor and a stator, a heat sink fixed with a second bearing supporting the rear side of the rotor shaft, a control substrate mounting a rotary sensor, a microcomputer, and a driving circuit. The microcomputer controls the driving circuit based on signals from the rotary sensor and drives a plurality of switching elements. At least one of a smoothing condenser and a noise reduction coil, connected to the switching elements, is arranged at a far rear side of the control substrate.
摘要翻译： 具有内置控制装置的旋转电机可以小型化。 具有内置控制装置的旋转电机包括：转子，其包括设置在转子轴的后侧的传感器用永磁体;固定有支撑转子轴的前侧的第一轴承的前侧壳体; 包括转子和定子的电机框架，固定有支撑转子轴的后侧的第二轴承的散热器，安装旋转传感器的控制基板，微型计算机和驱动电路。 微型计算机根据来自旋转传感器的信号控制驱动电路并驱动多个开关元件。 连接到开关元件的平滑电容器和降噪线圈中的至少一个布置在控制基板的远侧。
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公开(公告)号：US20160204666A1
公开(公告)日：2016-07-14
申请号：US14910800
申请日：2013-10-22
发明人： Tetsuya IWATA , Isao SONODA , Satoru AKUTSU , Masatsugu NAKANO
CPC分类号： H02K1/278 , H02K1/276 , H02K1/28 , H02K1/30 , H02K2201/09 , H02K2213/03
摘要： A rotor (1) for a rotary electric machine includes a rotor core (2) including a first core portion (20) having a plurality of core pieces (5, 6) joined together through caulking portions (2a) and a hollow first lightening portion (20a), and a second core portion (21) having a plurality of core pieces (7, 8) joined together through caulking portions (2a) and a press-fit portion (21b). A radial magnetic path width of a ring-shaped outer circumferential portion formed by laminating the first core portion (20) and the second core portion (21) changes along a circumferential direction of the rotor core (2). Therefore, a weight and an inertia can be reduced.
摘要翻译： 一种用于旋转电机的转子（1）包括：转子芯（2），包括具有通过铆接部分（2a）连接在一起的多个芯片（5,6）的第一芯部分（20）和中空的第一减轻部分 （20a）和具有通过铆接部（2a）和压入部（21b）接合在一起的多个芯片（7,8）的第二芯部（21）。 通过层叠第一芯部（20）和第二芯部（21）而形成的环状外周部的径向磁路宽度沿着转子铁芯（2）的周向发生变化。 因此，可以减轻重量和惯性。
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公开(公告)号：US20150333586A1
公开(公告)日：2015-11-19
申请号：US14652865
申请日：2013-04-09
发明人： Yu HIROTANI , Minako IEFUJI , Yuji TAKIZAWA , Sachiko KAWASAKI , Masatsugu NAKANO , Toyoaki UDO , Satoru AKUTSU
CPC分类号： H02K3/28 , H02K1/16 , H02K1/2706 , H02K1/278 , H02K7/14 , H02K11/0094 , H02K11/215 , H02K11/33 , H02K29/03 , H02K29/08 , H02K2201/03 , H02K2213/03 , H02K2213/12
摘要： To obtain a permanent magnet type motor capable of securing controllability of a motor and utilizing reluctance torque. An armature winding is a plurality of sets of polyphase windings; the plurality of sets of the armature winding is supplied with current from each individual inverter; the rotor core is provided with permanent magnets on a surface portion thereof, the permanent magnets being circumferentially arranged and the adjacent permanent magnets having polarities opposite to each other; a protrusion portion is provided between the adjacent permanent magnets, the protrusion portion being provided in a protruding condition from the rotor core and being made of a magnetic substance; and a non-magnetic gap portion is interposed between the protrusion portion and the permanent magnet in a rotating shaft direction.
摘要翻译： 获得能够确保电动机的可控制性和利用磁阻转矩的永久磁铁式电动机。 电枢绕组是多组多相绕组; 从各个逆变器提供多组电枢绕组的电流; 转子芯在其表面部分上设置有永磁体，永久磁铁是周向布置的，并且相邻的永磁体具有彼此相反的极性; 在相邻的永磁体之间设置有突出部，突出部设置在从转子芯突出的状态，并由磁性物质构成; 并且在旋转轴方向上在突出部和永磁体之间插入非磁性间隙部。
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