公开(公告)号：US09966807B2

公开(公告)日：2018-05-08

申请号：US15294354

申请日：2016-10-14

Applicant: ASMO CO., LTD.

Inventor： Seiya Yokoyama ,  Yoshiaki Takemoto

IPC: H02K1/27 ,  H02K21/12 ,  H02K3/28 ,  H02K1/14 ,  H02K1/24 ,  H02K16/02 ,  H02K3/18 ,  H02K7/08 ,  H02K21/14

CPC classification number: H02K1/2706 ,  H02K1/14 ,  H02K1/24 ,  H02K1/2713 ,  H02K1/2746 ,  H02K3/18 ,  H02K3/28 ,  H02K7/083 ,  H02K16/02 ,  H02K21/12 ,  H02K21/14

Abstract: A brushless motor includes a first rotor core, a second rotor core, and a field magnet member. The first rotor core includes primary projecting pieces arranged along a circumferential direction at equal intervals. The second rotor core has the same shape as the first rotor core, and includes secondary projecting pieces arranged along the circumferential direction at equal intervals. The secondary projecting pieces are positioned between the primary projecting pieces that are adjacent to one another in the circumferential direction. The field magnet member is arranged between the first rotor core and the second rotor core. The field magnet member is magnetized along an axial direction to generate primary magnetic poles in the primary projecting pieces, and generate secondary magnetic poles in the secondary projecting pieces. A rotor includes the first rotor core, the second rotor core, and the field magnet member.

公开(公告)号：US20140265703A1

公开(公告)日：2014-09-18

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 ,  Toshihiro Uchida

IPC: H02K1/24

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.

Abstract translation: 一种包括定子和转子的电动机。 定子包括齿和绕组。 每个齿具有由定子的径向向内侧限定的远侧部分。 从定子向径向配置的转子包括转子铁心，磁铁和凸极。 每个凸极由与圆周方向相邻的磁体的空隙分开。 每个齿的远端部分比每个磁体的径向外侧长。

公开(公告)号：US10862380B2

公开(公告)日：2020-12-08

申请号：US15857373

申请日：2017-12-28

Applicant: ASMO CO., LTD.

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

IPC: H02K1/18 ,  H02K16/00 ,  H02K1/14 ,  H02K21/14 ,  H02K1/27 ,  H02K3/52 ,  H02K15/02 ,  H02K1/24 ,  H02K21/04

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：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：US09923420B2

公开(公告)日：2018-03-20

申请号：US15044882

申请日：2016-02-16

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki Takemoto ,  Shigemasa Kato ,  Masashi Matsuda

IPC: H02K1/14 ,  H02K1/22 ,  H02K3/28 ,  F04D17/16 ,  F04D29/28 ,  F04D29/42 ,  F04D25/06 ,  H02K37/12 ,  H02K1/27 ,  H02K16/00

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.

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：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

IPC: H02K1/27 ,  H02K1/24

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.

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

IPC: H02K1/24 ,  H02K1/14 ,  H02K1/27

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。

公开(公告)号：US09143013B2

公开(公告)日：2015-09-22

申请号：US13662810

申请日：2012-10-29

Applicant: ASMO Co., Ltd.

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

IPC: H02K21/12 ,  H02K1/27 ,  H02K16/02

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.

Abstract translation: 具有轴向的转子包括沿轴向布置的至少一对转子芯和位于转子芯之间并沿轴向被磁化的磁场磁体。 每个转子芯包括在轴向方向上延伸的多个爪极。 每个转子铁心包括适当地引起磁通量流向爪极的磁通量控制部分。

公开(公告)号：US20150084470A1

公开(公告)日：2015-03-26

申请号：US14490016

申请日：2014-09-18

Applicant: ASMO CO., LTD.

Inventor： Yoshiaki Takemoto ,  Masashi Matsuda ,  Yusuke Morimoto

IPC: H02K21/14 ,  H02K1/14

CPC classification number: H02K21/145 ,  H02K1/145 ,  H02K1/226 ,  H02K1/2706 ,  H02K1/2713 ,  H02K1/2733

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.

Abstract translation: 电动机包括转子和定子。 该转子包括：第一转子铁芯，其包括多个第一爪状磁极;第二转子铁心，包括多个第二爪状磁极;以及磁场磁铁，设置在第一和第二转子铁心之间。 第一爪状磁极和第二爪状磁极沿圆周方向交替排列。 磁场磁铁使第一爪状磁极和第二爪状磁极作为彼此不同的磁极。 定子包括：第一定子铁芯，其包括多个第一爪状磁极;第二定子铁芯，包括多个第二爪状磁极;以及线圈段，配置在第一和第二定子铁芯之间。 定子构造成使定子的第一爪状磁极和第二爪状磁极作为彼此不同的磁极，并且基于对线圈部的通电来切换磁极的极性。 转子的爪状磁极和定子的爪状磁极中的至少一个形成为使得前端部的圆周中心相对于近端的圆周中心在圆周方向上偏移的形状 部分。