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公开(公告)号：US07772735B2
公开(公告)日：2010-08-10
申请号：US11736474
申请日：2007-04-17
IPC分类号： H02K21/12
CPC分类号： H02K1/2773
摘要： A plurality of magnets are arranged in accommodating holes each extending in a radial direction. A rotor core is provided with an extension portion in a circumferential direction extending further outward in the circumferential direction with respect to the magnet from at least one of a radially outer end and a radially inner end in the accommodating hole, and a radial regulating portion regulating a movement of the magnet in the radial direction. The radial regulating portion extends in the radial direction so as to correspond to a center in the circumferential direction of the accommodating hole. The dimension in the circumferential direction of a portion of the radial regulating portion that is brought into contact with the magnet is smaller than the dimension in the circumferential direction of the magnet. A cross-sectional area of the radial regulating portion as seen from the radial direction is small, in comparison with the case in which the radial regulating portion extends entirely in the axial direction of the rotor core. Accordingly, it is possible to reduce a leakage flux in a rotating electric machine.
摘要翻译： 多个磁体被布置在各自沿径向方向延伸的容纳孔中。 转子芯在圆周方向上设置有延伸部分，该延伸部分在容纳孔中的径向外端和径向内端中的至少一个方向上相对于磁体在圆周方向上进一步向外延伸，并且径向调节部分调节 磁体在径向的运动。 径向限制部沿径向方向延伸，以与容纳孔的圆周方向上的中心对应。 与磁体接触的径向限制部的一部分的圆周方向的尺寸小于磁体圆周方向的尺寸。 与径向调节部在转子芯的轴向全部延伸的情况相比，径向调节部的横截面积小。 因此，可以减少旋转电机中的漏磁通。
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公开(公告)号：US20070252469A1
公开(公告)日：2007-11-01
申请号：US11736474
申请日：2007-04-17
CPC分类号： H02K1/2773
摘要： A plurality of magnets are arranged in accommodating holes each extending in a radial direction. A rotor core is provided with an extension portion in a circumferential direction extending further outward in the circumferential direction with respect to the magnet from at least one of a radially outer end and a radially inner end in the accommodating hole, and a radial regulating portion regulating a movement of the magnet in the radial direction. The radial regulating portion extends in the radial direction so as to correspond to a center in the circumferential direction of the accommodating hole. The dimension in the circumferential direction of a portion of the radial regulating portion that is brought into contact with the magnet is smaller than the dimension in the circumferential direction of the magnet. A cross-sectional area of the radial regulating portion as seen from the radial direction is small, in comparison with the case in which the radial regulating portion extends entirely in the axial direction of the rotor core. Accordingly, it is possible to reduce a leakage flux in a rotating electric machine.
摘要翻译： 多个磁体被布置在各自沿径向方向延伸的容纳孔中。 转子芯在圆周方向上设置有延伸部分，该延伸部分在容纳孔中的径向外端和径向内端中的至少一个方向上相对于磁体在圆周方向上进一步向外延伸，并且径向调节部分调节 磁体在径向的运动。 径向限制部沿径向方向延伸，以与容纳孔的圆周方向上的中心对应。 与磁体接触的径向限制部的一部分的圆周方向的尺寸小于磁体圆周方向的尺寸。 与径向调节部在转子芯的轴向全部延伸的情况相比，径向调节部的横截面积小。 因此，可以减少旋转电机中的漏磁通。
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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：US08084911B2
公开(公告)日：2011-12-27
申请号：US12580118
申请日：2009-10-15
IPC分类号： H02K1/22
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：US09041269B2
公开(公告)日：2015-05-26
申请号：US13160026
申请日：2011-06-14
申请人： Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Keisuke Koide , Yoshiaki Takemoto , Shinji Santo
发明人： Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Keisuke Koide , Yoshiaki Takemoto , Shinji Santo
IPC分类号： H02K21/12 , H02K1/06 , H02K1/27 , H02K1/14 , H02K1/30 , H02K5/173 , H02K11/00 , H02K21/14 , H02K21/16 , H02K29/03
CPC分类号： H02K1/2746 , H02K1/146 , H02K1/30 , H02K5/1732 , H02K11/01 , H02K21/14 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： There is provided a motor including a rotor and a stator arranged outside the rotor in the radial direction. The rotor includes a rotor core, a plurality of magnets arranged at equal intervals in the circumferential direction of the rotor core and functioning as one magnetic pole, and salient poles integrated with the rotor core, each arranged between adjacent magnets and at a distance from the magnets. The salient poles function as the other magnetic pole. A stator has a stator core having a plurality of teeth extending in the radial direction of the stator and arranged at equal intervals in the circumferential direction, and multi-phase coils attached to the teeth.
摘要翻译： 提供一种电动机，其包括转子和定子，其设置在转子的径向外侧。 转子包括转子铁心，在转子铁心的圆周方向等间隔配置并用作一个磁极的多个磁体和与转子铁心成一体的凸极，每个磁极都布置在相邻的磁体之间并且距离 磁铁。 凸极用作另一个磁极。 定子具有定子芯，该定子芯具有沿定子的径向方向延伸的多个齿，并且沿圆周方向等间隔布置，并且多相线圈附接到齿上。
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公开(公告)号：US20120019089A1
公开(公告)日：2012-01-26
申请号：US13185081
申请日：2011-07-18
IPC分类号： H02K1/27
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 D1 = M / 2 + G-a×360（°）/ L（其中a为自然数），则辅助槽的侧面的圆周方向的圆周方向的磁极部满足D1）。
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公开(公告)号：US20110309707A1
公开(公告)日：2011-12-22
申请号：US13160026
申请日：2011-06-14
申请人： Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Keisuke Koide , Yoshiaki Takemoto , Shinji Santo
发明人： Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Keisuke Koide , Yoshiaki Takemoto , Shinji Santo
IPC分类号： H02K1/27
CPC分类号： H02K1/2746 , H02K1/146 , H02K1/30 , H02K5/1732 , H02K11/01 , H02K21/14 , H02K21/16 , H02K29/03 , H02K2213/03
摘要： There is provided a motor including a rotor and a stator arranged outside the rotor in the radial direction. The rotor includes a rotor core, a plurality of magnets arranged at equal intervals in the circumferential direction of the rotor core and functioning as one magnetic pole, and salient poles integrated with the rotor core, each arranged between adjacent magnets and at a distance from the magnets. The salient poles function as the other magnetic pole. A stator has a stator core having a plurality of teeth extending in the radial direction of the stator and arranged at equal intervals in the circumferential direction, and multi-phase coils attached to the teeth. The plurality of salient poles are arranged to have center portions arranged at equal intervals in the circumferential direction, and each have an outer surface extending in the circumferential direction in a range of a predetermined opening angle having an axis of the rotor as a center. A first opening angle serving as an opening angle of an outer surface of a first salient pole is different from a second opening angle serving as an opening angle of an outer surface of a second salient pole.
摘要翻译： 提供一种电动机，其包括转子和定子，其设置在转子的径向外侧。 转子包括转子铁心，在转子铁心的圆周方向等间隔配置并用作一个磁极的多个磁体和与转子铁心成一体的凸极，每个磁极都布置在相邻的磁体之间并且距离 磁铁。 凸极用作另一个磁极。 定子具有定子芯，该定子芯具有沿定子的径向方向延伸的多个齿，并且沿圆周方向等间隔布置，并且多相线圈附接到齿上。 多个凸极被布置成具有沿圆周方向等间隔布置的中心部分，并且每个凸极具有在以转子轴线为中心的预定开启角的范围内在圆周方向上延伸的外表面。 用作第一凸极的外表面的打开角度的第一开角不同于用作第二凸极的外表面的打开角度的第二开度角。
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公开(公告)号：US20110148240A1
公开(公告)日：2011-06-23
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：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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