公开(公告)号：US20130113323A1

公开(公告)日：2013-05-09

申请号：US13662810

申请日：2012-10-29

Applicant: ASMO Co., Ltd.

Inventor： Yoji Yamada ,  Chie Morita ,  Yoshiaki Takemoto ,  Makoto Morisaki

IPC: H02K1/24

CPC classification number: H02K1/243 ,  H02K1/2706 ,  H02K1/2713 ,  H02K1/276 ,  H02K1/2773 ,  H02K16/02

Abstract: A rotor having an axial direction includes at least a pair of rotor cores arranged in the axial direction, and a field magnet located between the rotor cores and magnetized in the axial direction. Each of the rotor cores includes a plurality of claw poles extending in the axial direction. Each of the rotor cores includes a magnetic flux controlling section, which appropriately causes a magnetic flux to flow to the claw poles.

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.

公开(公告)号：US10141821B2

公开(公告)日：2018-11-27

申请号：US14490016

申请日：2014-09-18

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki Takemoto ,  Masashi Matsuda ,  Yusuke Morimoto

IPC: H02K1/22 ,  H02K21/14 ,  H02K1/14 ,  H02K1/27

Abstract: A motor includes a rotor and a stator. The rotor includes a first rotor core including a plurality of first claw-like magnetic poles, a second rotor core including a plurality of second claw-like magnetic poles, and a magnetic field magnet arranged between the first and second rotor cores. The first and second claw-like magnetic poles are alternately arranged in a circumferential direction. The magnetic field magnet causes the first and second claw-like magnetic poles to function as magnetic poles different from each other. The stator includes a first stator core including a plurality of first claw-like magnetic poles, a second stator core including a plurality of second claw-like magnetic poles, and a coil section arranged between the first and second stator cores. The stator is configured to cause the first and second claw-like magnetic poles of the stator to function as magnetic poles different from each other and switch polarities of the magnetic poles on the basis of energization to the coil section. At least ones of the claw-like magnetic poles of the rotor and the claw-like magnetic poles of the stator are formed in a shape in which circumferential centers of distal end portions are shifted in the circumferential direction with respect to circumferential centers of proximal end portions.

公开(公告)号：US09887608B2

公开(公告)日：2018-02-06

申请号：US14160391

申请日：2014-01-21

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki Takemoto ,  Yusuke Morimoto ,  Masashi Matsuda ,  Seiya Yokoyama

IPC: H02K1/14 ,  H02K1/27 ,  H02K16/00 ,  H02K21/14 ,  H02K3/52 ,  H02K15/02 ,  H02K1/24 ,  H02K21/04

CPC classification number: H02K16/00 ,  H02K1/145 ,  H02K1/243 ,  H02K1/2713 ,  H02K3/525 ,  H02K3/528 ,  H02K15/022 ,  H02K21/048 ,  H02K21/145 ,  H02K2201/06

Abstract: A rotor with four axially stacked rotor cores, and a plurality of field magnets interposed between them. Each rotor core includes a rotor-side claw-shaped magnetic pole. Each rotor-side claw-shaped magnetic poles are respectively extending from and formed on each rotor core at equal angle intervals. Tip end surfaces of the first and third rotor-side claw-shaped magnetic pole abut against or are closely opposed to each other axially. Tip end surfaces of the second and fourth rotor-side claw-shaped magnetic poles abut against or are closely opposed to each other in the axial direction. The plurality of field magnets are magnetized in the axial direction such that the field magnets causes the first and third rotor-side claw-shaped magnetic poles to function as first magnetic poles, and cause the second and fourth rotor-side claw-shaped magnetic poles to function as second magnetic poles.

公开(公告)号：US09584060B2

公开(公告)日：2017-02-28

申请号：US14881726

申请日：2015-10-13

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki Takemoto ,  Yoko Tateishi ,  Seiya Yokoyama ,  Yusuke Morimoto

IPC: H02K3/28 ,  H02P29/00 ,  H02K21/14 ,  H02K1/27 ,  H02K1/14

CPC classification number: H02P29/00 ,  H02K1/145 ,  H02K1/2713 ,  H02K21/145

Abstract: A motor includes a two-layer rotor and a two-layer stator. The two layer rotor includes an A-phase rotor and a B-phase rotor that are stacked together. When θ1 represents, in electric angle, an angle of the B-phase stator relative to the A-phase stator in a clockwise circumferential direction, and θ2 represents, in electric angle, an angle of the B-phase rotor relative to the A-phase rotor in a counterclockwise circumferential direction, θ1+|θ2|=90° is satisfied.

Abstract translation: 电动机包括两层转子和两层定子。 两层转子包括堆叠在一起的A相转子和B相转子。 当θ1以电角度表示B相定子相对于A相定子在顺时针方向上的角度时，θ2以电角度表示B相转子相对于A相定子的角度， 逆时针方向的相位转子θ1+ |θ2| = 90°。

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

IPC: H02K1/14 ,  F04D25/06 ,  H02K9/04 ,  F04D29/42 ,  H02K1/22 ,  H02K1/27 ,  F04D17/16 ,  F04D29/28

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。

公开(公告)号：US09083216B2

公开(公告)日：2015-07-14

申请号：US13953554

申请日：2013-07-29

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki Takemoto ,  Yoko Tateishi

IPC: H02K16/00 ,  H02K1/24 ,  H02K1/14 ,  H02K15/02 ,  H02K21/14 ,  H02K21/22 ,  H02K1/27

CPC classification number: H02K1/243 ,  H02K1/145 ,  H02K1/2713 ,  H02K15/022 ,  H02K21/145 ,  H02K21/227 ,  H02K2201/12 ,  H02K2213/03 ,  Y10T29/49012

Abstract: A motor includes a first, second, and third motor unit. First, second and third rotors each including a first and second rotor core and a field magnet. The first and second rotor cores include respectively first and second rotor core bases and a plurality of first and second claw magnetic poles that are arranged alternately along a circumferential direction of the motor. The field magnet causes the plurality of first claw magnetic poles and the plurality of second claw magnetic poles to function as different magnetic poles. Each of first and second stators including pluralities of first claw magnetic poles and second claw magnetic poles alternately arranged along the circumferential direction of the motor. The second stator core having a coil section.

Abstract translation: 马达包括第一，第二和第三马达单元。 首先，第二和第三转子各自包括第一和第二转子芯和场磁体。 第一和第二转子铁芯分别包括沿着电动机的圆周方向交替设置的第一和第二转子铁心基体和多个第一和第二爪形磁极。 场磁铁使得多个第一爪磁极和多个第二爪磁极用作不同的磁极。 每个第一和第二定子包括多个第一爪磁极和第二爪磁极，沿着电机的圆周方向交替布置。 第二定子铁心具有线圈段。