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公开(公告)号：US20110204833A1
公开(公告)日：2011-08-25
申请号：US13028990
申请日：2011-02-16
申请人： Shinji SANTO , Seiya YOKOYAMA , Yoji YAMADA , Yoshiaki TAKEMOTO , Shigemasa KATO , Kenta GOTO
发明人： Shinji SANTO , Seiya YOKOYAMA , Yoji YAMADA , Yoshiaki TAKEMOTO , Shigemasa KATO , Kenta GOTO
IPC分类号： H02P6/10
CPC分类号： H02P21/05
摘要： A controller for use with a motor including a stator, around which three-phase coils are wound, and a rotor, which includes a magnet functioning as a first magnetic pole and a salient pole of a core functioning as a second magnetic pole. The controller supplies the three-phase coils with excitation currents having a predetermined phase difference from one another to drive and rotate the rotor. The controller includes a current adjustment unit that adjusts a fundamental wave current using high-order currents for third order and ninth order components in a q-axis to reduce torque ripple. The excitation current is generated based on the fundamental wave current adjusted by the current adjustment unit.
摘要翻译： 一种与电动机一起使用的控制器，其包括缠绕有三相线圈的定子和包括用作第一磁极的磁体和用作第二磁极的芯的凸极的转子。 控制器为三相线圈提供彼此具有预定相位差的励磁电流，以驱动和旋转转子。 该控制器包括电流调节单元，该电流调节单元使用q阶中的三阶和九阶分量的高次电流调节基波电流以减小转矩波动。 基于由电流调节单元调整的基波电流产生励磁电流。
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公开(公告)号：US20120091845A1
公开(公告)日：2012-04-19
申请号：US13274082
申请日：2011-10-14
申请人： Yoshiaki TAKEMOTO , Shinji SANTO , Kenta GOTO , Shigemasa KATO
发明人： Yoshiaki TAKEMOTO , Shinji SANTO , Kenta GOTO , Shigemasa KATO
IPC分类号： H02K21/12
CPC分类号： H02K1/276 , H02K29/03 , H02K2201/03 , H02K2213/03
摘要： A brushless motor includes a rotor and a stator. The rotor is provided with a rotor core including a plurality of magnet poles and a plurality of core poles. A void is formed at a boundary between each core pole and an adjacent magnet pole in the circumferential direction. Each magnet pole includes a peripheral core portion located closer to the stator than the magnet in the radial direction of the rotor. The void formed in at least one of two circumferential sides of each magnet pole includes an extended void region that extends into the peripheral core portion toward a middle point of the magnet pole in the circumferential direction.
摘要翻译： 无刷电动机包括转子和定子。 转子设置有包括多个磁极和多个芯极的转子芯。 在圆周方向上的每个芯极和相邻磁极之间的边界处形成空隙。 每个磁极包括在转子的径向方向上比磁体更靠近定子的周边芯部。 形成在每个磁极的两个周向侧中的至少一个中的空隙包括延伸的空隙区域，其沿周向方向延伸到磁极的中点。
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公开(公告)号：US20100308680A1
公开(公告)日：2010-12-09
申请号：US12779580
申请日：2010-05-13
IPC分类号： H02K1/27
CPC分类号： H02K1/2746 , H02K29/03
摘要： A motor is disclosed that includes a rotor having a consequent-pole structure. The rotor core of the rotor includes a magnetic flux dividing portion at each position that faces one of the magnets. Each magnetic flux dividing portion forcibly divides magnetic flux in the vicinity of the backside of the corresponding magnet to both sides in the circumferential direction.
摘要翻译： 公开了一种电动机，其包括具有后续极结构的转子。 转子的转子铁心包括在面对磁体之一的每个位置处的磁通量分配部。 每个磁通量分割部分将相应磁铁的背面附近的磁通强制分割成圆周方向的两侧。
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公开(公告)号：US20140265706A1
公开(公告)日：2014-09-18
申请号：US14287536
申请日：2014-05-27
IPC分类号： H02K1/24
CPC分类号： H02K1/24 , H02K1/2746 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： A motor includes a rotor and a stator. The rotor includes a plurality of magnets, which function as first magnetic poles, and salient poles, which function as second magnetic poles. A ratio X1:X2 of a quantity X1 of magnetic pole portions of the rotor, which is the sum of the quantity of the magnets and the quantity of the salient poles, and the quantity X2 of slots is 2n:3n (n being a natural number). The sum of a magnetic pole occupying angle θ1 of the magnet and a magnetic pole occupying angle θ2 of the salient pole is 360°. The magnetic pole occupying angle θ1 is set in a range of 180°
摘要翻译： 电动机包括转子和定子。 转子包括用作第一磁极的多个磁体和用作第二磁极的凸极。 转子的磁极部分的数量X1的比值X1：X2是磁体的数量与凸极的数量之和，槽的数量X2是2n：3n（n是自然的） 数）。 磁极占据角度和总和;磁体的1和磁极占据角度;突出极的2个为360°。 磁极占据角度和角度; 1设置在180°
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公开(公告)号：US20100301695A1
公开(公告)日：2010-12-02
申请号：US12752755
申请日：2010-04-01
IPC分类号： H02K21/16
CPC分类号： H02K1/24 , H02K1/2746 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： A motor includes a rotor and a stator. The rotor includes a plurality of magnets, which function as first magnetic poles, and salient poles, which function as second magnetic poles. A ratio X1:X2 of a quantity X1 of magnetic pole portions of the rotor, which is the sum of the quantity of the magnets and the quantity of the salient poles, and the quantity X2 of slots is 2n:3n (n being a natural number). The sum of a magnetic pole occupying angle θ1 of the magnet and a magnetic pole occupying angle θ2 of the salient pole is 360°. The magnetic pole occupying angle θ1 is set in a range of 180°
摘要翻译： 电动机包括转子和定子。 转子包括用作第一磁极的多个磁体和用作第二磁极的凸极。 转子的磁极部分的数量X1的比值X1：X2是磁体的数量与凸极的数量之和，槽的数量X2是2n：3n（n是自然的） 数）。 磁极占据角度和总和;磁体的1和磁极占据角度;突出极的2个为360°。 磁极占据角度和角度; 1设置在180°
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公开(公告)号：US20120248919A1
公开(公告)日：2012-10-04
申请号：US13431784
申请日：2012-03-27
IPC分类号： H02K1/27
CPC分类号： H02K29/12 , H02K1/2746
摘要： A motor in which drive current supplied to a winding is controlled in accordance with a rotational position of a rotor detected from a waveform of an induced voltage between phases. The motor is provided with a stator including 3×n teeth and windings for three phases. A rotor includes a rotor core, an n number of magnets, and an n number of salient poles. The magnets function as one of the magnetic poles, the salient poles function as the other one of the magnetic poles. Each salient pole is spaced apart by a gap from the adjacent ones of the magnets in the circumferential direction. The magnets and gap are arranged inward in the radial direction from the rotor core. An electrical angle between two ends of each magnet is set to be smaller than an electrical angle between two ends of each salient pole.
摘要翻译： 根据从相之间的感应电压的波形检测的转子的旋转位置来控制供给到绕组的驱动电流的电动机。 电机设有一个定子，包括3×n个齿和三相绕组。 转子包括转子铁芯，n个磁体和n个凸极。 磁铁用作磁极之一，凸极用作另一个磁极。 每个凸极在圆周方向上与相邻的磁体间隔开间隔开。 磁体和间隙从转子芯向径向内侧布置。 每个磁体的两端之间的电角设定为小于每个凸极的两端之间的电角度。
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公开(公告)号：US20120098378A1
公开(公告)日：2012-04-26
申请号：US13274064
申请日：2011-10-14
IPC分类号： H02K1/27
摘要： A motor includes a rotor of 4n magnetic poles and a stator. The rotor includes a rotor core, 2n magnets embedded in the rotor core and 2n salient pole portions formed integrally with the rotor core. A gap is formed between each magnet and the circumferentially adjacent salient pole portion. The stator has 6n tooth portions arranged to face the magnets and the salient pole portions in the radial direction, and coils. Each coil is wound about one of the tooth portions. An electric angle α that corresponds to a mechanical angle α′ defined by a reference line that passes through a central axis of the rotor and the circumferential center position of each magnet, and a line that passes through the central axis of the rotor and the trailing end of each trailing gap, is set in the range of 90°
摘要翻译： 电动机包括4n个磁极的转子和定子。 转子包括转子铁心，嵌入转子铁芯中的2n个磁体和与转子铁芯整体形成的2n个凸极部分。 在每个磁体和周向相邻的凸极部分之间形成间隙。 定子具有6n个齿部，其布置成在径向方向上面对磁体和凸极部分，并且线圈。 每个线圈围绕其中一个齿部分缠绕。 对应于通过转子的中心轴线的参考线限定的机械角α'和每个磁体的圆周中心位置的电角度α以及穿过转子的中心轴线的线 每个拖尾间隙的末端设定在90°<α<126°的范围内。
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公开(公告)号：US20120112592A1
公开(公告)日：2012-05-10
申请号：US13237390
申请日：2011-09-20
申请人： Yoji YAMADA , Shigemasa KATO
发明人： Yoji YAMADA , Shigemasa KATO
IPC分类号： H02K1/27
CPC分类号： H02K1/2746
摘要： A rotor comprises a rotor core, a plurality of magnetic poles arranged in a circumferential direction of the rotor core, a plurality of salient poles and a plurality of auxiliary magnets each of which is disposed between the magnetic pole and the salient pole is provided. Each magnet pole has a field magnet pole that serves as a first magnetic pole, wherein the field magnet is a main magnet. Each salient pole is integrally formed with the rotor core between the two adjacent magnetic poles. Each salient pole serves as a second magnetic pole. The pole of the second magnetic pole is opposite from that of the first magnetic pole. The auxiliary magnet generates magnetic flux in a circumferential direction of the rotor core so that the magnetic pole and an opposing pole of the auxiliary magnet have the same polarity and the salient pole and another opposing pole of the auxiliary magnet have the same polarity.
摘要翻译： 转子包括转子芯，设置在转子芯的圆周方向上的多个磁极，多个凸极和多个辅助磁体，每个辅助磁体设置在磁极和凸极之间。 每个磁极具有用作第一磁极的磁场磁极，其中磁场磁体是主磁体。 每个凸极与两个相邻磁极之间的转子芯一体形成。 每个凸极用作第二磁极。 第二磁极的极与第一磁极的极相反。 辅助磁体在转子铁芯的圆周方向上产生磁通，使得磁极和辅助磁铁的相对极具有相同的极性，并且辅助磁体的凸极和另一相对极具有相同的极性。
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