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公开(公告)号：US09502929B2
公开(公告)日：2016-11-22
申请号：US13805618
申请日：2011-11-18
Applicant: Yoji Yamada , Chie Morita , Yuuki Fujii , Shigemasa Kato
Inventor： Yoji Yamada , Chie Morita , Yuuki Fujii , Shigemasa Kato
CPC classification number: H02K1/27 , H02K1/22 , H02K1/2713 , H02K1/272 , H02K1/2766 , H02K1/2773 , H02K21/044
Abstract: A rotor with a first rotor core, a second rotor core, a field magnet, and an interpole magnet is provided. The first rotor core has a first core base and a plurality of first nail-shaped magnetic pole parts that extend in the axis direction from the outer circumference section of the first core base. The second rotor core has a second core base and a plurality of second nail-shaped magnetic pole parts that extend in the axis direction from the outer circumference section of the second core base. The field magnet is magnetized along the axis direction and makes the first nail-shaped magnetic parts function as first magnetic poles and the second nail-shaped magnetic parts function as second magnetic poles. The interpole magnet is arranged between the first nail-shaped magnetic parts and the second nail-shaped magnetic parts. The interpole magnet has the same polarity as the first and second nail-shaped magnetic pole parts, in the sections where same face the first and second nail-shaped magnetic pole parts.
Abstract translation: 提供具有第一转子铁心，第二转子铁芯，磁场磁体和极间磁铁的转子。 第一转子铁芯具有从第一铁心基体的外周部沿轴向延伸的第一铁心基体和多个第一钉状磁极部。 第二转子铁芯具有从第二铁心基体的外周部沿轴向延伸的第二铁心基体和多个第二钉状磁极部。 场磁体沿着轴线方向被磁化，使得第一指甲形磁性部件作为第一磁极起作用，第二指甲形磁性部件用作第二磁极。 极间磁铁配置在第一指甲状磁性部和第二指甲状磁性部之间。 在与第一和第二钉状磁极部相同的部分中，极间磁铁具有与第一和第二钉状磁极部相同的极性。
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公开(公告)号：US08653771B2
公开(公告)日：2014-02-18
申请号：US13028990
申请日：2011-02-16
Applicant: Shinji Santo , Seiya Yokoyama , Yoji Yamada , Yoshiaki Takemoto , Shigemasa Kato , Kenta Goto
Inventor： Shinji Santo , Seiya Yokoyama , Yoji Yamada , Yoshiaki Takemoto , Shigemasa Kato , Kenta Goto
IPC: H02P6/10
CPC classification number: H02P21/05
Abstract: 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.
Abstract translation: 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：US08324779B2
公开(公告)日：2012-12-04
申请号：US12897905
申请日：2010-10-05
Applicant: Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Yoshiaki Takemoto , Keisuke Koide , Shinji Santo
Inventor： Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Yoshiaki Takemoto , Keisuke Koide , Shinji Santo
IPC: H02K21/12
CPC classification number: H02K1/2746 , H02K21/14 , H02K21/16 , H02K29/03 , H02K2213/03
Abstract: 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 plurality of teeth. A first auxiliary groove is formed in a surface of each salient pole that is opposed to the teeth. Each first auxiliary groove has first and second side surfaces facing each other in the circumferential direction. The first side surface is closer to a circumferential center of the salient pole than the second side surface. When the angle from the circumferential center line to the first side surface of each salient pole about the axis of the rotor is represented by KC1, the opening angle between the circumferential ends of the distal end of each tooth about the axis is represented by KA, and the opening angle between the circumferential ends of each salient pole about the axis is represented by KB, the following expression is satisfied: KC1=KA−KB/2.
Abstract translation: 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。 第一辅助槽形成在与齿相对的每个凸极的表面中。 每个第一辅助槽具有在圆周方向上彼此相对的第一和第二侧表面。 第一侧表面比第二侧表面更靠近凸极的圆周中心。 当每个凸极的周向中心线到转子的轴的第一侧面的角度由KC1表示时，每个齿的远端的周向端部周围的轴线之间的开放角度由KA表示， 并且每个凸极周围的轴的周向端之间的开度角由KB表示，满足以下表达式：KC1 = KA-KB / 2。
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公开(公告)号：US08319386B2
公开(公告)日：2012-11-27
申请号：US12897893
申请日：2010-10-05
Applicant: Yoji Yamada , Seiya Yokoyama , Yoshiaki Takemoto , Shigemasa Kato , Keisuke Koide , Shinji Santo
Inventor： Yoji Yamada , Seiya Yokoyama , Yoshiaki Takemoto , Shigemasa Kato , Keisuke Koide , Shinji Santo
IPC: H02K21/12
CPC classification number: H02K1/2746 , H02K21/14 , H02K21/16 , H02K29/03 , H02K2213/03
Abstract: 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
Abstract translation: 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：US20120248919A1
公开(公告)日：2012-10-04
申请号：US13431784
申请日：2012-03-27
Applicant: Yoshiaki TAKEMOTO , Toshihiro UCHIDA , Seiya YOKOYAMA , Shigemasa KATO
Inventor： Yoshiaki TAKEMOTO , Toshihiro UCHIDA , Seiya YOKOYAMA , Shigemasa KATO
IPC: H02K1/27
CPC classification number: H02K29/12 , H02K1/2746
Abstract: 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.
Abstract translation: 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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Patent Agency Ranking
公开(公告)号：US08264113B2
公开(公告)日：2012-09-11
申请号：US13409194
申请日：2012-03-01
Applicant: Yoshiaki Takemoto , Seiya Yokoyama , Yoji Yamada , Shigemasa Kato
Inventor： Yoshiaki Takemoto , Seiya Yokoyama , Yoji Yamada , Shigemasa Kato
IPC: H02K21/12
Abstract: 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.
Abstract translation: 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：US20110181230A1
公开(公告)日：2011-07-28
申请号：US12893071
申请日：2010-09-29
Applicant: Yoji Yamada , Shinji Santo , Seiya Yokoyama , Yoko Tateishi , Yoshiaki Takemoto , Shigemasa Kato
Inventor： Yoji Yamada , Shinji Santo , Seiya Yokoyama , Yoko Tateishi , Yoshiaki Takemoto , Shigemasa Kato
CPC classification number: H02K1/2746 , H02K29/03 , H02K2213/03 , H02P6/10 , H02P25/024
Abstract: 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.
Abstract translation: 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：US20110140562A1
公开(公告)日：2011-06-16
申请号：US12897905
申请日：2010-10-05
Applicant: Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Yoshiaki Takemoto , Keisuke Koide , Shinji Santo
Inventor： Shigemasa Kato , Seiya Yokoyama , Yoji Yamada , Yoshiaki Takemoto , Keisuke Koide , Shinji Santo
CPC classification number: H02K1/2746 , H02K21/14 , H02K21/16 , H02K29/03 , H02K2213/03
Abstract: 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 plurality of teeth. A first auxiliary groove is formed in a surface of each salient pole that is opposed to the teeth. Each first auxiliary groove has first and second side surfaces facing each other in the circumferential direction. The first side surface is closer to a circumferential center of the salient pole than the second side surface. When the angle from the circumferential center line to the first side surface of each salient pole about the axis of the rotor is represented by KC1, the opening angle between the circumferential ends of the distal end of each tooth about the axis is represented by KA, and the opening angle between the circumferential ends of each salient pole about the axis is represented by KB, the following expression is satisfied: KC1=KA−KB/2.
Abstract translation: 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。 第一辅助槽形成在与齿相对的每个凸极的表面中。 每个第一辅助槽具有在圆周方向上彼此相对的第一和第二侧表面。 第一侧表面比第二侧表面更靠近凸极的圆周中心。 当每个凸极的周向中心线到转子的轴的第一侧面的角度由KC1表示时，每个齿的远端的周向端部周围的轴线之间的开放角度由KA表示， 并且每个凸极周围的轴的周向端之间的开度角由KB表示，满足以下表达式：KC1 = KA-KB / 2。
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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
Applicant: Yoji YAMADA , Seiya YOKOYAMA , Shigemasa KATO , Yoshiaki TAKEMOTO , Yoko TATEISHI
Inventor： Yoji YAMADA , Seiya YOKOYAMA , Shigemasa KATO , Yoshiaki TAKEMOTO , Yoko TATEISHI
IPC: H02K1/27
CPC classification number: H02K1/2746 , H02K29/03
Abstract: 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.
Abstract translation: 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：USD467945S1
公开(公告)日：2002-12-31
申请号：US29145836
申请日：2001-07-31
Applicant: Sanae Mori , Shigemasa Kato
Designer： Sanae Mori , Shigemasa Kato
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