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公开(公告)号：US10826339B2
公开(公告)日：2020-11-03
申请号：US15541139
申请日：2016-08-18
Applicant: ASMO CO., LTD.
Inventor： Yoko Tateishi , Yoshiaki Takemoto , Masashi Matsuda , Hironari Suzuki , Seiya Yokoyama , Shigemasa Kato , Kazunori Shimada , Takahiro Tsuchiya
IPC: H02K1/24 , H02K3/52 , H02K1/14 , H02K29/08 , H02K37/14 , H02K1/27 , H02K21/24 , H02K11/215 , H02K11/33 , H02P6/15 , H02K21/14
Abstract: This motor includes a two-layer rotor, a two-layer stator and a control unit. An A-phase rotor includes a pair of rotor cores and a field magnet. A B-phase rotor includes a pair of rotor cores and a field magnet. An A-phase stator includes a pair of stator cores and an A-phase winding. A B-phase stator includes a pair of stator cores and a B-phase winding. The control unit controls an A-phase input voltage applied to the A-phase winding, and a B-phase input voltage applied to the B-phase winding. The relative arrangement angle of the A-phase stator and the A-phase rotor relative to the B-phase stator and the B-phase rotor is set to an electrical angle of 90 degrees. The control unit applies a leading phase angle to the basic voltage waveforms of the A-phase input voltage and the B-phase input voltage, to set the energization width to at most 180 degrees.
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公开(公告)号：US09882439B2
公开(公告)日：2018-01-30
申请号：US14616106
申请日：2015-02-06
Applicant: ASMO CO., LTD.
Inventor： Kenta Goto , Hideaki Nishiura , Shigemasa Kato , Yoshiyuki Takabe , Masashi Matsuda , Toshihiro Uchida
CPC classification number: H02K1/2746 , H02K29/03 , H02K2201/06
Abstract: A rotor includes magnetic pole portions and first and second ferric core portions. The first and second ferric core portions are each located between magnetic pole portions in the circumferential direction of a rotor. A first gap is formed between the first or second ferric core portion and a magnetic pole portion at a first circumferential side. A second gap is formed between the first or second ferric core portion and the magnetic pole portion at a second circumferential side. The first gap has a smaller width than the second gap at the first ferric core portion. The first ferric core portion is inclined toward the first circumferential side. The first gap is larger than the second gap at the second ferric core portion. The second ferric core portion is inclined toward the second circumferential side.
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公开(公告)号：US20160248283A1
公开(公告)日：2016-08-25
申请号：US15044882
申请日：2016-02-16
Applicant: ASMO CO., LTD.
Inventor： Yoshiaki Takemoto , Shigemasa Kato , Masashi Matsuda
CPC classification number: H02K1/145 , F04D17/16 , F04D25/0606 , F04D29/281 , F04D29/4226 , H02K1/2713 , H02K16/00 , H02K37/12
Abstract: A motor includes a stator and a rotor. The stator includes an inner circumference stator section and an outer circumference stator section. The inner circumference stator section and the outer circumference stator section each include two stator cores and a coil. The two stator cores each include claw poles and are coupled to each other. The coil is arranged between the two stator cores. The rotor includes an inner circumference magnet and an outer circumference magnet. The inner circumference magnet, which is arranged at an inner circumferential side of the inner circumference stator section, opposes the claw poles in the radial direction. The outer circumference magnet, which is arranged at an outer circumferential side of the outer circumference stator section, opposes the claw poles in the radial direction. The inner circumference stator section and the inner circumference magnet form an inner circumference motor unit. The outer circumference stator section and the outer circumference magnet form an outer circumference motor unit.
Abstract translation: 电动机包括定子和转子。 定子包括内周定子部分和外周定子部分。 内周定子部和外周定子部分分别包括两个定子芯和一个线圈。 两个定子芯各自包括爪极并且彼此耦合。 线圈布置在两个定子芯之间。 转子包括内周磁铁和外周磁铁。 配置在内周定子部的内周侧的内圆周磁铁在径向上与爪极相对。 配置在外周定子部的外周侧的外周磁铁在径向上与爪极相对。 内周定子部和内周磁铁构成内周电动机单元。 外周定子部和外周磁铁构成外周电动机单元。
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公开(公告)号：US09762097B2
公开(公告)日：2017-09-12
申请号：US14524623
申请日：2014-10-27
Applicant: ASMO CO., LTD.
Inventor： Shigemasa Kato , Koji Mikami
IPC: H02K1/27
CPC classification number: H02K1/2733 , H02K1/2713 , H02K2213/03
Abstract: A rotor includes a first rotor core, a second rotor core, a first magnet, a second magnet, and an annular magnet. The first magnet is arranged between first extensions of the first rotor core. The annular magnet, which is arranged between second extensions of the second rotor core, is held between the first core base and the second core base. The first magnet and the second magnet are formed integrally.
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公开(公告)号：US09577496B2
公开(公告)日：2017-02-21
申请号：US14075942
申请日：2013-11-08
Applicant: ASMO CO., LTD.
Inventor： Shigemasa Kato , Yoji Yamada , Koji Mikami , Seiya Yokoyama
CPC classification number: H02K21/16 , H02K1/2706 , H02K1/2713 , H02K1/272 , H02K29/08
Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and a detected portion. The first rotor core includes a first core base and a plurality of first claw-shaped magnetic pole portions. The second rotor core includes a second core base and a plurality of second claw-shaped magnetic pole portions. The first and second core bases face to each other, and the first and second claw-shaped magnetic pole portions are alternately arranged in the circumferential direction. The field magnet is located between the first and second core bases in the axial direction. The field magnet has the first claw-shaped magnetic pole portion function as a first magnetic pole and has the second claw-shaped magnetic pole portion function as a second magnetic pole. A detected portion, which generates a magnetic flux, is arranged at an outer axial end surface of the first rotor core.
Abstract translation: 转子包括第一转子铁心，第二转子铁芯，磁场磁铁和检测部分。 第一转子铁心包括第一铁心基体和多个第一爪形磁极部分。 第二转子铁芯包括第二铁心基体和多个第二爪形磁极部分。 第一和第二芯基体彼此面对，并且第一和第二爪形磁极部分在圆周方向上交替布置。 场磁体位于第一和第二芯基座之间的轴向方向上。 场磁体具有第一爪形磁极部分作为第一磁极，并且第二爪形磁极部分用作第二磁极。 产生磁通的检测部分设置在第一转子铁芯的外轴向端面上。
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Patent Agency Ranking
公开(公告)号：US20150115760A1
公开(公告)日：2015-04-30
申请号：US14524623
申请日：2014-10-27
Applicant: ASMO CO., LTD.
Inventor： Takahiro Tsuchiya , Chie Morita , Yoji Yamada , Shigemasa Kato , Koji Mikami
IPC: H02K1/27
CPC classification number: H02K1/2733 , H02K1/2713 , H02K2213/03
Abstract: A rotor includes a first rotor core, a second rotor core, a first magnet, a second magnet, and an annular magnet. The first magnet is arranged between first extensions of the first rotor core. The annular magnet, which is arranged between second extensions of the second rotor core, is held between the first core base and the second core base. The first magnet and the second magnet are formed integrally.
Abstract translation: 转子包括第一转子铁芯，第二转子铁芯，第一磁体，第二磁体和环形磁体。 第一磁体布置在第一转子芯的第一延伸部之间。 布置在第二转子芯的第二延伸部之间的环形磁体保持在第一芯基体和第二芯基体之间。 第一磁体和第二磁体一体形成。
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公开(公告)号：US09667107B2
公开(公告)日：2017-05-30
申请号：US14288099
申请日：2014-05-27
Applicant: Asmo Co., Ltd.
Inventor： Yoji Yamada , Seiya Yokoyama , Keisuke Koide , Yoshiaki Takemoto , Shigemasa Kato
CPC classification number: H02K1/24 , H02K1/274 , H02K1/2746 , H02K1/278 , H02K2213/03
Abstract: A motor including a stator and a rotor. The stator includes teeth and windings. Each tooth has a distal portion defined by a radially inward side of the stator. The rotor, which is arranged inward in the radial direction from the stator, includes a rotor core, magnets, and salient poles. Each salient pole is separated by a void from the magnet that is adjacent in the circumferential direction. The distal portion of each tooth is longer than a radially outward side of each magnet.
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公开(公告)号：US20160028277A1
公开(公告)日：2016-01-28
申请号：US14800424
申请日：2015-07-15
Applicant: ASMO CO., Ltd.
Inventor： Yoshiaki Takemoto , Seiya Yokoyama , Masashi Matsuda , Shigemasa Kato
CPC classification number: H02K1/145 , H02K1/2713 , H02K3/18 , H02K11/30 , H02K21/145 , H02K2213/06 , H02K2213/09 , H02K2213/12
Abstract: A multi-Lundell motor includes a rotor and a stator. The rotor includes first and second rotor cores and a permanent magnet. The first and second rotor cores each include claw poles in the circumferential direction. The permanent magnet is magnetized in the axial direction between the first and second rotor cores. The stator includes first and second stator cores and a winding. The first and second stator cores each include claw poles in the circumferential direction. The winding is arranged between the first and second stator cores and extended in the circumferential direction. At least one of the first and second rotor cores and the first and second stator cores include core segments arranged in the circumferential direction.
Abstract translation: 多隆德尔电动机包括转子和定子。 转子包括第一和第二转子芯和永磁体。 第一和第二转子芯在圆周方向上均包括爪极。 永磁体在第一和第二转子芯之间沿轴向磁化。 定子包括第一和第二定子芯和绕组。 第一和第二定子铁心在圆周方向上均包括爪极。 绕组布置在第一和第二定子铁芯之间并且在圆周方向上延伸。 第一和第二转子铁心以及第一和第二定子铁心中的至少一个包括沿圆周方向排列的铁芯段。
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公开(公告)号：US09379582B2
公开(公告)日：2016-06-28
申请号：US13953549
申请日：2013-07-29
Applicant: ASMO CO., LTD.
Inventor： Koji Mikami , Yoji Yamada , Shigemasa Kato
CPC classification number: H02K1/2713 , H02K1/2706 , H02K1/2766 , H02K15/03 , H02K29/03
Abstract: A motor includes a shaft, a rotor, and a stator. The rotor includes first and second rotor cores, and a field magnet. Second claw magnetic pole portions of second rotor core are arranged between first claw magnetic pole portions of the first rotor core. The field magnet causes the first claw magnetic pole portions to function as first magnetic poles, and the second claw magnetic pole portions to function as second magnetic poles. Radially inner surfaces of the teeth of a stator core face radially outer surfaces of the first and second claw magnetic poles. Either radially outer surfaces of the first and second claw magnetic pole portions or radially inner surfaces of the teeth each have a cross-sectional shape in a direction orthogonal to the axial direction that is not concentric to a circle of which center is an axis of the rotation shaft.
Abstract translation: 电动机包括轴，转子和定子。 转子包括第一和第二转子芯和场磁体。 第二转子铁心的第二爪磁极部配置在第一转子铁芯的第一爪极极部之间。 场磁铁使第一爪磁极部作为第一磁极，第二爪磁极部作为第二磁极发挥作用。 定子芯的齿的径向内表面面向第一和第二爪磁极的径向外表面。 第一爪极磁极部分和第二爪状磁极部分的径向外表面或齿的径向内表面各自在与轴向正交的方向上具有横截面形状，该轴向方向的中心不是同心圆 旋转轴。
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公开(公告)号：US20150171681A1
公开(公告)日：2015-06-18
申请号：US14616106
申请日：2015-02-06
Applicant: ASMO CO., LTD.
Inventor： Kenta Goto , Hideaki Nishiura , Shigemasa Kato , Yoshiyuki Takabe , Masashi Matsuda , Toshihiro Uchida
IPC: H02K1/27
CPC classification number: H02K1/2746 , H02K29/03 , H02K2201/06
Abstract: A rotor includes magnetic pole portions and first and second ferric core portions. The first and second ferric core portions are each located between magnetic pole portions in the circumferential direction of a rotor. A first gap is formed between the first or second ferric core portion and a magnetic pole portion at a first circumferential side. A second gap is formed between the first or second ferric core portion and the magnetic pole portion at a second circumferential side. The first gap has a smaller width than the second gap at the first ferric core portion. The first ferric core portion is inclined toward the first circumferential side. The first gap is larger than the second gap at the second ferric core portion. The second ferric core portion is inclined toward the second circumferential side.
Abstract translation: 转子包括磁极部分和第一和第二铁芯部分。 第一和第二铁芯部分分别位于转子周向的磁极部分之间。 在第一或第二铁芯部分和第一圆周侧的磁极部分之间形成第一间隙。 在第二圆周侧的第一或第二铁芯部和磁极部之间形成第二间隙。 第一间隙具有比第一铁芯部分的第二间隙小的宽度。 第一铁芯部朝向第一周向侧倾斜。 第一间隙大于第二铁心部分处的第二间隙。 第二铁芯部朝向第二周向侧倾斜。
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