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公开(公告)号：US08159106B2
公开(公告)日：2012-04-17
申请号：US12813201
申请日：2010-06-10
申请人： Yuichi Yoshikawa , Hiroaki Kawasaki , Kenji Sugiura , Hiroshi Ueda , Hiroki Asai
发明人： Yuichi Yoshikawa , Hiroaki Kawasaki , Kenji Sugiura , Hiroshi Ueda , Hiroki Asai
IPC分类号： H02K1/00
CPC分类号： H02K29/03 , H02K1/146 , H02K1/2786
摘要： A stator 13 on whose outer circumference a plurality of magnetic poles 13a are arranged is mounted on a substrate 11, and a rotor 14 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 15 magnetized to have alternately opposite polarities in a direction opposing the stator, and magnetized to have alternately opposite polarities in a direction opposing the substrate. The outer circumferential ends of the magnetic poles of the stator are provided with a first extended portion 13c that extends from a magnetic pole base 13d to the substrate side, and a second extended portion 13b that extends from the magnetic pole base to a side opposite the substrate side. A face of the substrate opposing the rotor is provided with a FG pattern 19 outside the outer circumferential face of the stator such that the FG pattern opposes the magnet. Accordingly, it is possible to improve the precision in detecting the rotational speed by reducing noise superimposed on the FG signal, while securing a high driving efficiency.
摘要翻译： 在其外周配置有多个磁极13a的定子13安装在基板11上，并且转子14围绕定子可旋转地设置。 转子的内周面设置有磁体15，磁体15在与定子相对的方向上具有相反的极性，并且在与基板相对的方向上被磁化成具有相反的极性。 定子的磁极的外周端设置有从磁极基部13d延伸到基板侧的第一延伸部13c和从磁极基部延伸到与磁极基部相反的一侧的第二延伸部13b 衬底侧。 与转子相对的基板的表面在定子的外周面的外侧设置有FG图案19，使得FG图案与磁体相对。 因此，在确保高驱动效率的同时，通过降低叠加在FG信号上的噪音来提高检测转速的精度。
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公开(公告)号：US08970080B2
公开(公告)日：2015-03-03
申请号：US12100535
申请日：2008-04-10
申请人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
发明人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami
摘要： Having a stator core including a yoke, a plurality of inside teeth, and a plurality of outside teeth, an inside rotor, and an output rotor, the inside slot open angle/inside pole angle and the outside slot open angle/outside pole angle are determined so that the inside cogging torque due to rotation of the inside rotor and the outside cogging torque due to rotation of the outside rotor may cancel each other in inverted phases. Plural combinations are provided so that the amplitude of inside cogging torque and the amplitude of outside cogging torque due to rotation of outside rotor maybe approximate values in inverted phase, and the combination of the highest combined voltage value of the both induced voltage is selected.
摘要翻译： 具有包括轭，多个内齿和多个外齿的定子芯，内转子和输出转子，内槽开角/内极角和外槽开放角/外极角分别为 确定为使得由于内转子的旋转而产生的内齿槽转矩和由于外转子的旋转引起的外齿槽转矩在倒置相中彼此抵消。 提供了多个组合，使得内部齿槽转矩的振幅和由外部转子的旋转引起的外部齿槽转矩的振幅可以在反相中近似值，并且选择两个感应电压的最大组合电压值的组合。
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13.发明授权Winding method and winding structure of stator for rotation detector, and electric motor comprising rotation detector 有权用于旋转检测器的定子的绕线方法和绕组结构，以及包括旋转检测器的电动机公开(公告)号：US08664962B2
公开(公告)日：2014-03-04
申请号：US13643947
申请日：2012-01-10
IPC分类号： G01R31/06
摘要： The N1(s) turns of a first output winding is divided by a split ratio α into N1a(s) turns of a lower-layer first output winding and N1b(s) of an upper-layer first output winding. The lower-layer first output winding is continuously wound around all slots as the undermost layer. A second output winding is continuously wound around all slots over the lower-layer first output winding. An upper-layer first output winding is continuously wound around all slots over the second output winding. The split ratio α is adjusted only in the slots where the detection accuracy decreases. This equalize the contribution of the first output windings and the second output winding to the flux linkage, thereby achieving high angle detection accuracy.
摘要翻译： 第一输出绕组的N1（s）匝被分割比α除以下层第一输出绕组的N1a（s）匝和上层第一输出绕组的N1b（s）。 下层第一输出绕组作为最下层连续缠绕在所有槽上。 第二输出绕组连续缠绕在下层第一输出绕组上的所有槽上。 上层第一输出绕组连续卷绕在第二输出绕组上的所有槽上。 仅在检测精度降低的插槽中调整分割比α。 这使得第一输出绕组和第二输出绕组对磁通的贡献相等，从而实现高角度检测精度。
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公开(公告)号：US20130342068A1
公开(公告)日：2013-12-26
申请号：US13983255
申请日：2012-02-01
IPC分类号： H02K1/12
摘要： A plurality of protruding portions each having a predetermined width in a circumferential direction are respectively provided at a predetermined interval along an outer periphery of a stator, and through-holes are formed at both ends in the circumferential direction of the protruding portions. A total length of the widths, which the protruding portions respectively have, in the circumferential direction is set equal to or less than 25% of an outer circumference of the stator. With this structure and by virtue of the through-holes, a compressive stress built up in an inner periphery of the stator due to pressing forces imposed on center areas of the protruding portions can be distribute toward the outer periphery of the stator.
摘要翻译： 分别沿着定子的外周以规定的间隔设置有沿圆周方向具有预定宽度的多个突出部分，并且在突出部分的圆周方向上的两端形成通孔。 突出部分在圆周方向上分别具有的宽度的总长度被设定为等于或小于定子的外圆周的25％。 利用这种结构，并且由于通孔，由于施加在突出部分的中心区域上的压力，在定子的内周积累的压缩应力可以朝向定子的外周分布。
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15.发明申请METHOD AND STRUCTURE OF WINDING OF STATOR FOR ROTATION DETECTOR, AND ELECTRIC MOTOR COMPRISING ROTATION DETECTOR 有权旋转检测器定子绕组的方法和结构以及包含转子检测器的电动机公开(公告)号：US20130088127A1
公开(公告)日：2013-04-11
申请号：US13702921
申请日：2011-04-12
IPC分类号： H02K15/085 , H02K11/00
CPC分类号： H02K15/085 , H02K3/28 , H02K24/00 , Y10T29/49071
摘要： The N1(s) turns of an output winding is divided by a split ratio α into N1a(s) turns of an output winding (1a) and N1b(s) turns of an output winding (1b). The output winding (1a) is continuously wound around all slots as the undermost layer. Output winding 2, which is different in phase by 90 degrees from the output winding (1a), is continuously wound around all the slots over the output winding (1a). An output winding (1b) is continuously wound around all the slots over output winding 2. This equalizes the contribution of the output winding and output winding 2 to the flux linkage, thereby achieving high angle detection accuracy.
摘要翻译： 输出绕组的N1（s）匝由分流比α除以输出绕组（1a）的N1a（s）匝和输出绕组（1b）的N1b（s）匝。 输出绕组（1a）作为最下层连续缠绕在所有槽上。 与输出绕组（1a）相位相差90度的输出绕组2连续缠绕在输出绕组（1a）上的所有槽上。 输出绕组（1b）连续缠绕在输出绕组2上的所有槽上。这使得输出绕组和输出绕组2对磁链的贡献相等，从而实现高角度检测精度。
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公开(公告)号：US20110187222A1
公开(公告)日：2011-08-04
申请号：US12738848
申请日：2009-10-21
申请人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Hideaki Matsuo , Yuichiro Tashiro , Koichi Mitamura , Hideto Inoue , Reiji Tajima , Eiji Hataya
发明人： Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Hideaki Matsuo , Yuichiro Tashiro , Koichi Mitamura , Hideto Inoue , Reiji Tajima , Eiji Hataya
CPC分类号： H02K16/02 , H02K1/148 , Y10T29/49009
摘要： A dual-rotor motor provided with a stator having a stator core including a yoke, a plurality of teeth and a coil wound around the stator core, an inner rotor and an outer rotor, wherein the stator core includes an annular yoke component forming the yoke, and a plurality of tooth components forming the teeth. The stator core is made by fitting the tooth components individually into the annular yoke component in a manner that one ends of the tooth components protrude from the inner peripheral side of the annular yoke component and the other ends protrude from the outer peripheral side of the annular yoke component.
摘要翻译： 一种双转子电动机，其具有定子，该定子具有定子铁芯，该定子铁芯包括磁轭，多个齿和缠绕在定子铁芯上的线圈，内转子和外转子，其中定子铁心包括形成轭铁的环形磁轭部件 ，以及形成齿的多个牙齿部件。 定子铁心通过将齿部件分别安装到环形轭部件中，使得齿部件的一端从环形轭部件的内周侧突出，另一端从环形部件的外周侧突出， 轭组件。
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公开(公告)号：US20100226802A1
公开(公告)日：2010-09-09
申请号：US12716382
申请日：2010-03-03
申请人： Kiyomi Kawamura , Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Yasushi Kato
发明人： Kiyomi Kawamura , Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Yasushi Kato
CPC分类号： H02K16/02 , F04D13/0666 , F04D13/0673 , H02K7/14
摘要： A fan motor includes a pair of fans axially mounted to both sides of a rotary shaft of the motor. The motor includes an inner rotor placed inside a stator wound with windings and an outer rotor placed outside the stator. The motor thus has a dual-rotor structure where the inner rotor and the outer rotor are held such that both the rotors can rotate on the rotary shaft.
摘要翻译： 风扇电动机包括轴向安装在电动机的旋转轴的两侧的一对风扇。 电动机包括放置在绕有绕组的定子内部的内转子和放置在定子外部的外转子。 因此，电动机具有双转子结构，其中内转子和外转子被保持成使得两个转子可以在旋转轴上旋转。
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公开(公告)号：US20090134738A1
公开(公告)日：2009-05-28
申请号：US12064871
申请日：2006-11-24
申请人： Yuichi Yoshikawa , Yuichi Tanabe , Hiroshi Murakami , Hideharu Hiwaki , Koji Kuyama , Akio Ando
发明人： Yuichi Yoshikawa , Yuichi Tanabe , Hiroshi Murakami , Hideharu Hiwaki , Koji Kuyama , Akio Ando
IPC分类号： H02K1/16
摘要： In a stator core having “N” slots, a tooth-width centerline of a linear yoke and a first extension line extended horizontally from a center of rotary shaft toward the linear yoke form a first angle. Assume there are first point on the first extension line at a first distance from the center, a second extension line drawn at a second distance horizontally from the center toward the linear yoke and extended vertically toward arc-shaped yokes, and a third extension line drawn from the center toward teeth ends of the linear yokes with angle “K”. The second and third extension line intersect at a second point. A line between the first and second points intersects with the first extension line, thereby forming the first angle. In this structure, 0
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公开(公告)号：USD587197S1
公开(公告)日：2009-02-24
申请号：US29322513
申请日：2008-08-06
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公开(公告)号：US08876493B2
公开(公告)日：2014-11-04
申请号：US12716382
申请日：2010-03-03
申请人： Kiyomi Kawamura , Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Yasushi Kato
发明人： Kiyomi Kawamura , Hu Li , Yuichi Yoshikawa , Hiroshi Murakami , Yasushi Kato
CPC分类号： H02K16/02 , F04D13/0666 , F04D13/0673 , H02K7/14
摘要： A fan motor includes a pair of fans axially mounted to both sides of a rotary shaft of the motor. The motor includes an inner rotor placed inside a stator wound with windings and an outer rotor placed outside the stator. The motor thus has a dual-rotor structure where the inner rotor and the outer rotor are held such that both the rotors can rotate on the rotary shaft.
摘要翻译： 风扇电动机包括轴向安装在电动机的旋转轴的两侧的一对风扇。 电动机包括放置在绕有绕组的定子内部的内转子和放置在定子外部的外转子。 因此，电动机具有双转子结构，其中内转子和外转子被保持成使得两个转子可以在旋转轴上旋转。
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