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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：US08786161B2
公开(公告)日：2014-07-22
申请号：US13431784
申请日：2012-03-27
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：US08643239B2
公开(公告)日：2014-02-04
申请号：US13185081
申请日：2011-07-18
CPC分类号： H02K21/14 , H02K1/276 , H02K2213/03
摘要： A motor including a rotor and a stator. The rotor includes a rotor core, magnet pole portions, and core pole portions. First magnetic pole portions, which are the magnet pole portions or the core pole portions, each include a first and second opposing parts arranged in an axial direction. Each first opposing part includes an auxiliary groove, and each second opposing part does not include an auxiliary groove. Where M(°) represents an open angle of the first magnetic pole portion, G(°) represents an open angle of the void, and L represents the number of teeth, an angle D1 from a center line in the circumferential direction of the first magnetic pole portion to the side surface in the auxiliary groove that is closer to the center line in the circumferential direction satisfies D1=M/2+G−a×360(°)/L (where a is a natural number).
摘要翻译： 一种包括转子和定子的电动机。 转子包括转子芯，磁极部分和芯极部分。 作为磁极部或芯极部的第一磁极部各自包括沿轴向配置的第一和第二相对部。 每个第一相对部分包括辅助槽，并且每个第二相对部分不包括辅助槽。 其中M（°）表示第一磁极部的开放角度，G（°）表示空隙的开放角度，L表示齿数，从第一磁极部的圆周方向的中心线的角度D1 辅助槽中的沿圆周方向靠近中心线的侧面的磁极部分满足D1 = M / 2 + Ga×360（°）/ L（其中a为自然数）。
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公开(公告)号：US08536749B2
公开(公告)日：2013-09-17
申请号：US12897912
申请日：2010-10-05
申请人： Keisuke Koide , Seiya Yokoyama , Shigemasa Kato , Yoji Yamada , Yoshiaki Takemoto , Shinji Santo
发明人： Keisuke Koide , Seiya Yokoyama , Shigemasa Kato , Yoji Yamada , Yoshiaki Takemoto , Shinji Santo
CPC分类号： H02K1/2746 , H02K21/14 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： A motor having a rotor and a stator is disclosed. The rotor is a consequent-pole rotor having a rotor core, a plurality of magnets, and a plurality of salient poles. The stator includes a stator core and multiphase coils. Each coil is wound about the teeth by distributed winding, in such a manner as to wind two or more consecutive teeth in single winding. The opening degree each of salient pole opposed to the distal ends of the teeth is set greater than or equal to twice the opening angle of the distal end of each tooth.
摘要翻译： 公开了一种具有转子和定子的电动机。 转子是具有转子芯，多个磁体和多个凸极的后续极转子。 定子包括定子芯和多相线圈。 每个线圈以分布绕组的方式围绕齿缠绕，以便在单个绕组中缠绕两个或更多个连续的齿。 与齿的末端相对的凸极的开度大于或等于每个齿的远端的开口角的两倍。
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公开(公告)号：US20110193440A1
公开(公告)日：2011-08-11
申请号：US12897893
申请日：2010-10-05
申请人： YOJI YAMADA , SEIYA YOKOYAMA , YOSHIAKI TAKEMOTO , SHIGEMASA KATO , KEISUKE KOIDE , SHINJI SANTO
发明人： YOJI YAMADA , SEIYA YOKOYAMA , YOSHIAKI TAKEMOTO , SHIGEMASA KATO , KEISUKE KOIDE , SHINJI SANTO
IPC分类号： H02K21/14
CPC分类号： H02K1/2746 , H02K21/14 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： A motor having a rotor and a stator is disclosed. A motor having a rotor and as stator is disclosed. The rotor is a consequent-pole rotor having a rotor core, a plurality of magnets, and a plurality of salient poles. The stator includes a plurality of teeth. The stator is arranged to be opposite to the rotor with a gap along the radial direction. The gap between the stator and the rotor is set to satisfy an expression 1
摘要翻译： 公开了一种具有转子和定子的电动机。 公开了一种具有转子和定子的电动机。 转子是具有转子芯，多个磁体和多个凸极的后续极转子。 定子包括多个齿。 定子被布置成与转子相对，沿着径向方向具有间隙。 定子和转子之间的间隙设定为满足1
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公开(公告)号：US20100133939A1
公开(公告)日：2010-06-03
申请号：US12580118
申请日：2009-10-15
IPC分类号： H02K21/14
CPC分类号： H02K1/278 , H02K29/03 , H02K2201/06
摘要： A motor including a stator and a rotor is disclosed. The rotor includes a first unit and a second unit. The first unit includes an N-pole first magnet and an S-pole second magnet. The first and the second magnets are alternately arranged along a circumferential direction of the rotor at equal angular intervals to form magnetic pole portions. The second unit includes an N-pole or S-pole third magnet and a salient pole arranged in the rotor core. The salient pole functions as a magnetic pole that differs from the third magnet. The third magnet and the salient pole are alternately arranged along the circumferential direction of the rotor to form magnetic pole portions. The number of magnetic pole portions of the second unit is the same as the number of magnetic pole portions of the first unit. The third magnet and the magnet of the first unit having the same pole as the third magnet are aligned in the axial direction of the rotor.
摘要翻译： 公开了一种包括定子和转子的电动机。 转子包括第一单元和第二单元。 第一单元包括N极第一磁体和S极第二磁体。 第一和第二磁体以等角度间隔沿着转子的圆周方向交替布置以形成磁极部。 第二单元包括设置在转子芯中的N极或S极第三磁体和凸极。 凸极用作与第三磁体不同的磁极。 第三磁体和凸极沿转子的圆周方向交替布置以形成磁极部分。 第二单元的磁极部的数量与第一单元的磁极部的数量相同。 具有与第三磁体相同的极的第一单元的第三磁体和磁体在转子的轴向上对准。
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公开(公告)号：US08405342B2
公开(公告)日：2013-03-26
申请号：US12893071
申请日：2010-09-29
申请人： Yoji Yamada , Shinji Santo , Seiya Yokoyama , Yoko Tateishi , Yoshiaki Takemoto , Shigemasa Kato
发明人： Yoji Yamada , Shinji Santo , Seiya Yokoyama , Yoko Tateishi , Yoshiaki Takemoto , Shigemasa Kato
IPC分类号： H02P1/46
CPC分类号： H02K1/2746 , H02K29/03 , H02K2213/03 , H02P6/10 , H02P25/024
摘要： A motor including a stator, a rotor, and a current supply unit. The stator includes a stator core, which has a plurality of teeth, and a plurality of coils, which are wound around the teeth. The rotor includes a plurality of magnets, which function as first magnetic poles, and salient poles, which function as second magnetic poles. Each of the salient poles is arranged between adjacent magnets spaced apart by a clearance from the magnets. When P represents the number of poles in the rotor and S represents the number of coils, a ratio P/S of the pole number P and the coil number S is represented by (4n−2)/3m (where n and m are integers that are greater than or equal to 2). The plurality of coils includes a plurality of coil groups including coils for three phases. The current supply unit executes a different current control for each coil groups.
摘要翻译： 一种包括定子，转子和电流供应单元的电动机。 定子包括具有多个齿的定子芯和缠绕在齿上的多个线圈。 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。 每个凸极设置在与磁体间隔开的相邻磁体之间。 当P表示转子中的极数，S表示线圈数时，极数P和线圈数S的比P / S由（4n-2）/ 3m（其中n和m是整数）表示 大于或等于2）。 多个线圈包括多个线圈组，包括用于三相的线圈。 电流供应单元对每个线圈组执行不同的电流控制。
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公开(公告)号：US08242654B2
公开(公告)日：2012-08-14
申请号：US12779580
申请日：2010-05-13
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：US20120175987A1
公开(公告)日：2012-07-12
申请号：US13409194
申请日：2012-03-01
申请人： YOSHIAKI TAKEMOTO , Seiya Yokoyama , Yoji Yamada , Shigemasa Kato
发明人： YOSHIAKI TAKEMOTO , Seiya Yokoyama , Yoji Yamada , Shigemasa Kato
IPC分类号： H02K1/28
摘要： A brushless motor including a stator having teeth and a rotor having magnetic pole portions is disclosed. The magnetic pole portions are arranged to have the same polarities as each other. The rotor includes gaps that function as magnetic resistance at circumferential ends of each of the magnetic pole portions so that an iron core portion is formed between the circumferentially adjacent magnetic pole portions. Magnetic flux of the magnetic pole portions passes through the iron core portion along the radial direction. The gaps include a first gap located on the leading end of the magnetic pole portion in the rotation direction of the rotor and a second gap located on the trailing end of the magnetic pole portion in the rotation direction of the rotor. The circumferential width of the first gap is set to be greater than the circumferential width of the second gap.
摘要翻译： 公开了一种包括具有齿的定子的无刷电动机和具有磁极部分的转子。 磁极部分被设置为具有彼此相同的极性。 转子包括在每个磁极部分的周向端部处起到磁阻作用的间隙，使得在周向相邻的磁极部分之间形成铁芯部分。 磁极部分的磁通量沿径向方向穿过铁芯部分。 间隙包括位于转子的旋转方向上的磁极部的前端的第一间隙和位于转子的旋转方向上的磁极部的后端的第二间隙。 第一间隙的周向宽度被设定为大于第二间隙的周向宽度。
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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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