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

IPC: H02K11/00 ,  H02K21/12 ,  H02K21/14 ,  H02K21/16 ,  H02K29/08 ,  H02K1/27

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。

公开(公告)号：US20160111930A1

公开(公告)日：2016-04-21

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 ,  H02K1/14 ,  H02P29/00 ,  H02K1/22

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。 当电缆角度为1时，B相定子相对于A相定子的顺时针方向的角度为θ，电角为B相转子相对角度 以逆时针圆周方向连接到A相转子，并且满足：1 | | |θ2= 90°。

公开(公告)号：US09239058B2

公开(公告)日：2016-01-19

申请号：US13662834

申请日：2012-10-29

Applicant: ASMO Co., Ltd.

Inventor： Yoji Yamada ,  Chie Morita ,  Yoko Tateishi ,  Yuuki Fujii ,  Seiya Yokoyama

IPC: H02K1/27 ,  F04D13/06 ,  H02K1/30

Abstract: A rotor includes a first rotor core, a second rotor core, a field magnet, and an auxiliary magnet. The first rotor core includes a first core base and a plurality of first hook-shaped poles. The second rotor core includes a second core base and a plurality of second hook-shaped poles. The first and second hook-shaped poles are alternately arranged in a circumferential direction of the rotor. The field magnet is arranged between the first and second core bases in an axial direction. The field magnet cause the first hook-shaped poles to function as first poles and the second hook-shaped poles to function as second poles. The auxiliary magnet includes at least two interpolar magnet portions, which are integrally formed. Each interpolar magnet portion is arranged in a void between the first hook-shaped pole and the second hook-shaped pole and magnetized in the circumferential direction.

公开(公告)号：US20150295458A1

公开(公告)日：2015-10-15

申请号：US14685157

申请日：2015-04-13

Applicant: ASMO CO., LTD.

Inventor： Yoji Yamada ,  Koji Mikami ,  Takahiro Tsuchiya ,  Hironari Suzuki ,  Seiya Yokoyama

IPC: H02K1/24 ,  H02K1/27

CPC classification number: H02K1/243 ,  H02K1/2713 ,  H02K1/2746 ,  H02K19/103 ,  H02K21/16

Abstract: A motor includes a stator, a rotor, a case, and back-surface magnet portions. The rotor has a first rotor core, a second rotor core and a field magnet. Each of the first and second rotor cores has a core base and claw-shaped magnetic poles. The field magnet is sandwiched between the first rotor core and the second rotor core and causes the claw-shaped magnetic poles of the first rotor core and the second rotor core to function as different magnetic poles. The back-surface magnet portions include a second and a first back-surface magnet portions respectively provided on the back surfaces of the claw-shaped magnetic poles of the second rotor core and the first rotor core. Size of the second back-surface magnet portion differs from size of the first back-surface magnet portion are different from each other.

Abstract translation: 电动机包括定子，转子，壳体和后表面磁体部分。 转子具有第一转子芯，第二转子芯和场磁体。 第一和第二转子芯中的每一个具有芯基部和爪形磁极。 场磁体被夹在第一转子铁心和第二转子铁芯之间，并使第一转子铁心和第二转子铁心的爪形磁极作为不同的磁极发挥作用。 后表面磁体部分包括分别设置在第二转子芯和第一转子芯的爪形磁极的后表面上的第二和第一后表面磁体部分。 第二后表面磁体部分的尺寸与第一背面磁体部分的尺寸不同。

公开(公告)号：US08933610B2

公开(公告)日：2015-01-13

申请号：US13662762

申请日：2012-10-29

Applicant: ASMO Co., Ltd.

Inventor： Yoji Yamada ,  Chie Morita ,  Seiya Yokoyama

IPC: H02K1/22 ,  H02K1/27 ,  H02K1/30 ,  H02K16/02 ,  H02K1/24 ,  H02K21/04

CPC classification number: H02K1/27 ,  H02K1/243 ,  H02K1/2706 ,  H02K1/2713 ,  H02K1/2766 ,  H02K1/30 ,  H02K16/02 ,  H02K21/044

Abstract: A rotor includes at least one of a group of one or more auxiliary magnets that are located between first and second claw poles in a circumferential direction and magnetized to be magnetic poles of the same polarity as the first and second claw poles and another group of one or more auxiliary magnets that are located on a rear side of the first and second claw poles and magnetized to have radially outer portions of the same polarity as the first and second magnetic poles. The auxiliary magnets are arranged to protrude beyond at least one of axial end surfaces of the first and second core bases.

Abstract translation: 一个转子包括一组一个或多个辅助磁体中的至少一个，它们沿圆周方向位于第一爪极和第二爪极之间，并且被磁化为与第一和第二爪极相同极性的磁极，另一组 或更多的辅助磁体，其位于第一爪极和第二爪极的后侧，并被磁化以具有与第一和第二磁极具有相同极性的径向外部。 辅助磁铁配置成突出超过第一和第二磁芯基座的至少一个轴向端面。

公开(公告)号：US10734852B2

公开(公告)日：2020-08-04

申请号：US15709062

申请日：2017-09-19

Applicant: ASMO CO., LTD.

Inventor： Koji Mikami ,  Shigemasa Kato ,  Yoji Yamada ,  Seiya Yokoyama

IPC: H02K1/24 ,  H02K5/04 ,  H02K21/04 ,  H02K1/27 ,  H02K1/22

Abstract: A motor includes a stator, a rotor and a case. The rotor includes a first rotor core, a second rotor core, and a field magnet. Each of the first rotor core and the second rotor core includes a core base and a plurality of claw poles. The field magnet is located between the core bases. The case includes a cylindrical yoke housing and a lid. To balance magnetic flux from the first rotor core with magnetic flux from the second rotor core, the distance between the rotor and the stator is varied from the distance between the rotor and the yoke housing or the teeth of the stator are shaped to enable magnetic saturation.

公开(公告)号：US09653952B2

公开(公告)日：2017-05-16

申请号：US14287536

申请日：2014-05-27

Applicant: Asmo Co., LTD.

Inventor： Yoji Yamada ,  Seiya Yokoyama ,  Shigemasa Kato ,  Yoshiaki Takemoto ,  Yoko Tateishi

IPC: H02K1/27 ,  H02K1/24 ,  H02K29/03 ,  H02K21/16

CPC classification number: H02K1/24 ,  H02K1/2746 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

Abstract: 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°

公开(公告)号：US20160197527A1

公开(公告)日：2016-07-07

申请号：US14975394

申请日：2015-12-18

Applicant: ASMO CO., LTD.

Inventor： Yoji Yamada ,  Koji Mikami ,  Akihiro Utsumi ,  Akihisa Hattori ,  Chie Morita ,  Seiya Yokoyama

IPC: H02K1/24 ,  H02K1/30 ,  H02K1/27

CPC classification number: H02K1/2706 ,  H02K1/2713 ,  H02K1/2766 ,  H02K21/16

Abstract: A rotor of a motor includes first and second rotor cores, a field magnet, and a commutator magnet. The first and second rotor cores each include a core base and a plurality of claw poles. The claw poles of the first rotor core and the claw poles of the second rotor core are alternately arranged in a circumferential direction. The field magnet is located between the core bases. The field magnet is magnetized in an axial direction so that the claw poles of the first rotor core and the claw poles of the second rotor core function as different magnetic poles in the circumferential direction. The commutator magnet is located on an outer circumference of the field magnet around the claw poles. The commutator magnet is magnetized so that surfaces having the same polarity face each other between the claw poles and the commutator magnet.

Abstract translation: 电动机的转子包括第一和第二转子芯，场磁体和换向器磁体。 第一和第二转子芯分别包括芯基部和多个爪极。 第一转子铁心的爪极和第二转子铁芯的爪极在圆周方向交替地配置。 场磁体位于核心基座之间。 场磁体沿轴向磁化，使得第一转子铁心的爪极和第二转子铁芯的爪极在周向上起到不同的磁极的作用。 换向器磁体位于磁极周围的爪极周围。 换向器磁体被磁化，使得具有相同极性的表面在爪极和换向器磁体之间彼此面对。

公开(公告)号：US20150295457A1

公开(公告)日：2015-10-15

申请号：US14682962

申请日：2015-04-09

Applicant: Asmo Co., Ltd.

Inventor： Yoji Yamada ,  Chie Morita ,  Takahiro Tsuchiya ,  Seiya Yokoyama

IPC: H02K1/24 ,  H02K1/27

CPC classification number: H02K1/243 ,  H02K1/2713 ,  H02K1/2746 ,  H02K19/103 ,  H02K21/16

Abstract: A rotor includes first and second rotor cores, a field magnet, and an annular magnet. The first and second rotor cores each include a core base and core magnetic poles. The core magnetic poles are provided on an outer peripheral portion of the core base at equal intervals. The core bases are faced with each other. The core magnetic poles are alternately arranged in a peripheral direction. The annular magnet is a resin molding product including a magnetic pole magnet portion and an inter-pole magnet portion. The annular magnet has a non-contact portion not in contact with the first and second rotor cores. A gate mark portion in injection molding of the annular magnet is arranged in the non-contact portion.

Abstract translation: 转子包括第一和第二转子芯，场磁体和环形磁体。 第一和第二转子芯每个包括芯基部和芯磁极。 核心磁极以相等的间隔设置在铁芯基座的外周部上。 核心基地相互面对。 核心磁极沿圆周方向交替布置。 环形磁体是包括磁极磁体部分和极间磁体部分的树脂模制产品。 环形磁体具有不与第一和第二转子芯接触的非接触部分。 在非接触部分中布置有环形磁体的注射成型中的门标记部分。

公开(公告)号：US20150222152A1

公开(公告)日：2015-08-06

申请号：US14603879

申请日：2015-01-23

Applicant: ASMO CO., LTD.

Inventor： Yoji Yamada ,  Takahiro Tsuchiya ,  Chie Morita ,  Koji Mikami ,  Seiya Yokoyama ,  Masaru Irie

IPC: H02K1/24 ,  H02K15/02 ,  H02K11/00 ,  H02K1/27 ,  H02K5/02

CPC classification number: H02K5/02 ,  H02K1/27 ,  H02K1/2713 ,  H02K1/276 ,  H02K5/04 ,  H02K11/01 ,  H02K29/08 ,  Y10T29/49012

Abstract: A motor includes a stator, a rotor, and a case. The stator includes a stator core and windings. The rotor is provided inside the stator. The rotor includes first and second rotor cores and a field magnet. The first and second rotor cores each includes a core base and claw-shaped magnetic poles. The core bases are opposed to each other and the claw-shaped magnetic poles of the first and second rotor cores are alternately disposed in a circumferential direction. The field magnet is disposed between the core bases in the axial direction. The field magnet is magnetized in the axial direction so as to cause the claw-shaped magnetic poles of the first rotor core and the second rotor core to function respectively as first magnetic poles and second magnetic poles. At least part of an end part of the case in the axial direction is made of a non-magnetic body.

Abstract translation: 电动机包括定子，转子和壳体。 定子包括定子铁芯和绕组。 转子设在定子内部。 转子包括第一和第二转子芯和场磁体。 第一和第二转子芯每个包括芯基部和爪形磁极。 芯基部彼此相对，并且第一和第二转子芯的爪形磁极在圆周方向上交替设置。 场磁体沿轴向设置在芯基座之间。 场磁体在轴向上被磁化，从而使第一转子铁心和第二转子铁心的爪形磁极分别作为第一磁极和第二磁极起作用。 壳体的轴向端部的至少一部分由非磁性体构成。