公开(公告)号：US20170250637A1

公开(公告)日：2017-08-31

申请号：US15596004

申请日：2017-05-16

Applicant: CTS Corporation

Inventor： Yulanda King ,  Scott Calkins

IPC: H02P8/22 ,  H02K11/30 ,  H02K37/12 ,  H02K11/215 ,  H02K1/27 ,  H02K1/18

CPC classification number: H02P8/22 ,  H02K1/182 ,  H02K1/2793 ,  H02K11/215 ,  H02K11/30 ,  H02K11/33 ,  H02K21/24 ,  H02K37/125 ,  H02K2213/03 ,  H02P8/42

Abstract: An axial brushless DC motor comprising a stator including a plurality of coils, a rotor including a magnet with a plurality of pairs of magnetic poles and adapted for movement relative to the stator in one or more full steps, and a coil phase circuit adapted for moving the rotor relative to the stator a fractional step less than the one or more full steps and/or holding the rotor at the fractional or one or more full steps.

公开(公告)号：US20170040918A1

公开(公告)日：2017-02-09

申请号：US15222134

申请日：2016-07-28

Applicant: Fumihiro SHIMIZU ,  Takashi HASHIMOTO ,  Hiroshi KOIDE

Inventor： Fumihiro SHIMIZU ,  Takashi HASHIMOTO ,  Hiroshi KOIDE

IPC: H02P21/18 ,  H02K37/12 ,  H02K16/04 ,  H02K1/27

CPC classification number: H02P21/18 ,  H02K1/246 ,  H02K1/2733 ,  H02K21/145 ,  H02K21/16

Abstract: To manufacture a permanent magnetic motor having saliency at a low cost, a permanent magnet motor includes a stator provided with an armature winding configured to form a plurality of phases, a rotor having a surface facing the stator, the rotor including a permanent magnet disposed to face the stator, the permanent magnet having a plurality of magnetic poles arranged in a circumferential direction of the rotor, and a conductive member made of a conductive material and disposed on the surface of the rotor facing the stator.

Abstract translation: 为了以低成本制造具有显着性的永磁电动机，永磁电动机包括定子，其具有构造成形成多相的电枢绕组，具有面向定子的表面的转子，转子包括设置在 面向定子，具有沿转子周向设置的多个磁极的永久磁铁，以及配置在面向定子的转子表面上的由导电材料制成的导电部件。

公开(公告)号：US09356500B2

公开(公告)日：2016-05-31

申请号：US13868662

申请日：2013-04-23

Applicant: Johnson Electric S.A.

Inventor： Miha Furlan ,  Yvan Bourqui

IPC: H02K37/12 ,  H02K15/03 ,  H02K7/06 ,  H02K37/14 ,  H02K7/106

CPC classification number: H02K37/12 ,  H02K7/06 ,  H02K7/106 ,  H02K15/03 ,  H02K37/14 ,  Y10T29/49012

Abstract: A stepper motor has a rotor having a permanent magnet, a stator housing and a plurality of stator coil assemblies disposed within the stator housing. Each coil assembly has a bobbin, a coil wound about the bobbin, and two pole plates having pole fingers extending axially inside of the bobbin. The bobbin is disposed between the two pole plates and defines a space accommodating the rotor. A number of magnetic detent plates are disposed about the permanent magnet rotor. Each magnetic detent plate has a central opening accommodating the rotor and a plurality of projections extending inwardly, spaced about the central opening. The projections interact with the magnetic field of the rotor magnet.

Abstract translation: 步进电动机具有转子，该转子具有永磁体，定子壳体和设置在定子壳体内的多个定子线圈组件。 每个线圈组件具有绕线管，缠绕在线轴上的线圈和两个极板，其具有在线轴的轴向内部延伸的极指。 线轴被设置在两个极板之间并且限定容纳转子的空间。 多个磁性止动板围绕永磁转子设置。 每个磁性止动板具有容纳转子的中心开口和向内延伸的多个突起，该突起围绕中心开口间隔开。 突起与转子磁体的磁场相互作用。

公开(公告)号：US08922077B2

公开(公告)日：2014-12-30

申请号：US13454509

申请日：2012-04-24

Applicant: Takeshi Miyasaka ,  Hiroaki Usui

Inventor： Takeshi Miyasaka ,  Hiroaki Usui

IPC: H02K16/00 ,  H02K1/14 ,  H02K3/52 ,  H02K37/12

CPC classification number: H02K1/145 ,  H02K3/525 ,  H02K37/12

Abstract: In the outer rotor-type motor, coil leads can be efficiently wired in small spaces of stator units. The outer rotor-type motor comprises: a stator being constituted by a plurality of the stator units, in each of which a coil is sandwiched between stator yokes having magnetic pole teeth; a rotor having a rotor yoke, which includes a permanent magnet and which is capable of rotating together with an output shaft; and lead terminals of a driving circuit for energizing the coils. Each of the stator yokes is constituted by a plurality of yoke parts and formed into a ring shape, the stator yokes surround outer circumferences of the coils, and coil leads are extended outward from the inner side of each of the coils via a gap between the outer circumference of the coil and the magnetic pole teeth.

Abstract translation: 在外转子型电动机中，线圈引线可以有效地布线在定子单元的小空间中。 外转子型电动机包括：定子，由多个定子单元构成，每个定子单元中的每个定子线圈夹在具有磁极齿的定子轭之间; 具有转子轭的转子，其包括永磁体，并且能够与输出轴一起旋转; 以及用于对线圈通电的驱动电路的引线端子。 每个定子轭由多个轭部构成并形成环形，定子轭围绕线圈的外周，并且线圈引线从每个线圈的内侧经由 线圈的外周和磁极齿。

公开(公告)号：US08860282B2

公开(公告)日：2014-10-14

申请号：US10489854

申请日：2002-09-25

Applicant: Pierre Gandel ,  Daniel Prudham

Inventor： Pierre Gandel ,  Daniel Prudham

IPC: H02K1/22 ,  H02K21/12 ,  H02K1/06 ,  H02K37/12

CPC classification number: H02K37/125

Abstract: The invention concerns a polyphase motor comprising M phases, M being equal to 2 or 3, the motor consisting of a stator part (1) excited by electric coils and by a magnetized rotor (2). The invention is characterized in that the rotor (2) has a disc-shaped magnetized part with R pairs of alternately poles magnetized in alternating directions in the thickness, R being equal to n*(M+1) or 5*n, and said stator part (1) has S poles, some of which excited at least by an electric coil, S being equal to 8*n, for even M, and 9*n for odd M, n being an integer not less than 1.

Abstract translation: 本发明涉及一种多相电动机，其包括M相，M等于2或3，电动机由由电线圈激励的定子部分（1）和由磁化转子（2）激励。 本发明的特征在于，转子（2）具有圆盘形磁化部分，其中R对交替磁极在交替方向上以厚度磁化，R等于n *（M + 1）或5 * n，所述 定子部分（1）具有S极，其中一些至少由电线圈激励，对于偶数M，S等于8 * n，对于奇数M为9 * n，n为不小于1的整数。

公开(公告)号：US20130278086A1

公开(公告)日：2013-10-24

申请号：US13868662

申请日：2013-04-23

Applicant: JOHNSON ELECTRIC S.A.

Inventor： Miha FURLAN ,  Yvan BOURQUI

IPC: H02K37/12 ,  H02K15/03 ,  H02K7/06

CPC classification number: H02K37/12 ,  H02K7/06 ,  H02K7/106 ,  H02K15/03 ,  H02K37/14 ,  Y10T29/49012

Abstract: A stepper motor has a rotor having a permanent magnet, a stator housing and a plurality of stator coil assemblies disposed within the stator housing. Each coil assembly has a bobbin, a coil wound about the bobbin, and two pole plates having pole fingers extending axially inside of the bobbin. The bobbin is disposed between the two pole plates and defines a space accommodating the rotor. A number of magnetic detent plates are disposed about the permanent magnet rotor. Each magnetic detent plate has a central opening accommodating the rotor and a plurality of projections extending inwardly, spaced about the central opening. The projections interact with the magnetic field of the rotor magnet.

Abstract translation: 步进电动机具有转子，该转子具有永磁体，定子壳体和设置在定子壳体内的多个定子线圈组件。 每个线圈组件具有绕线管，缠绕在线轴上的线圈和两个极板，其具有在线轴的轴向内部延伸的极指。 线轴被设置在两个极板之间并且限定容纳转子的空间。 多个磁性止动板围绕永磁转子设置。 每个磁性止动板具有容纳转子的中心开口和向内延伸的多个突起，该中心开口围绕中心开口间隔开。 突起与转子磁体的磁场相互作用。

公开(公告)号：US07755229B2

公开(公告)日：2010-07-13

申请号：US12189154

申请日：2008-08-09

Applicant: Chia-Ming Chang ,  Chia-Chun Wei

Inventor： Chia-Ming Chang ,  Chia-Chun Wei

IPC: H02K37/12 ,  H02K37/14

CPC classification number: H02K37/18

Abstract: A hybrid step motor comprises a stator, a rotor assembly, a magnet and a mandrel. The rotor assembly and the magnet are mounted on the mandrel and are disposed in the stator. The proportion of a stator outer diameter to a stator inner diameter is 1:0.475 to 1:0.6. The proportion of the stator outer diameter to a rotor outer diameter is 1:0.5125 to 1:0.5875. The proportion of a first rotor thickness to a magnet thickness to a second rotor thickness is 0.236:0.09:0.236 optimally. The proportion of the rotor outer diameter to a magnet outer diameter is 0.54:0.45. By such arrangements, the optimal proportion is formed and the output efficiency is improved.

Abstract translation: 混合步进马达包括定子，转子组件，磁体和心轴。 转子组件和磁体安装在心轴上并设置在定子中。 定子外径与定子内径的比例为1:0.475〜1:0.6。 定子外径与转子外径的比例为1：0.5125〜1：0.5875。 第一转子厚度与磁体厚度相对于第二转子厚度的比例最好为0.236:0.09:0.236。 转子外径与磁体外径的比例为0.54：0.45。 通过这种布置，形成最佳比例，提高输出效率。

公开(公告)号：US07714475B2

公开(公告)日：2010-05-11

申请号：US11376091

申请日：2006-03-16

Applicant: Yuji Enomoto ,  Motoya Ito ,  Kenji Miyata ,  Chio Ishihara ,  Ryoso Masaki ,  Yasuaki Motegi ,  Kouki Isozaki ,  Tadashi Sato

Inventor： Yuji Enomoto ,  Motoya Ito ,  Kenji Miyata ,  Chio Ishihara ,  Ryoso Masaki ,  Yasuaki Motegi ,  Kouki Isozaki ,  Tadashi Sato

IPC: H02K21/14 ,  H02K37/12

CPC classification number: H02K21/145 ,  H02K1/02 ,  H02K1/145 ,  H02K16/04

Abstract: In a multiple phase claw pole type motor which includes: a plurality of claw poles including a claw portion extending in an axial direction and having a magnetic pole surface facing a rotor in a state of being separated from the rotor by a small gap, a radial yoke portion extending radially outwardly from this claw portion, and an outer peripheral yoke extending from this radial yoke portion in the same direction as the direction of extension of the claw portion; a stator core formed by alternately placing the claw poles in a circumferential direction so that a distal end of each claw portion faces the outer peripheral yoke of an adjacent one of the claw poles; and a stator constructed by sandwiching an annular coil with the adjacent claw poles of this stator core, a multiple phase claw pole type motor characterized in that the claw poles are formed by compacting a magnetic powder and are formed of a magnetic compact having a DC magnetizing property of its flux density becoming 1.7 teslas or more when 10000 A/m of magnetic field is applied.

Abstract translation: 一种多相爪极式电动机，其特征在于，包括：多个爪极，包括爪状部，所述爪部在与所述转子分离的状态下以小间隙在轴向延伸并具有面向转子的磁极面， 从该爪部向径向外侧延伸的轭部，以及与该爪部的延伸方向相同的方向从该径向轭部延伸的外周磁轭; 定子铁芯，其通过将爪极在周向上交替放置，使得每个爪部的前端面对相邻的一个爪极的外周磁轭而形成; 以及通过将环形线圈与该定子铁心的相邻爪极夹持而构成的定子，其特征在于，所述爪极通过压缩磁粉而形成，并且由具有直流磁化的磁性体形成 当施加10000A / m的磁场时，其磁通密度的特性变为1.7特斯拉或更高。

公开(公告)号：US07589440B2

公开(公告)日：2009-09-15

申请号：US11562692

申请日：2006-11-22

Applicant: Shoji Oiwa ,  Masafumi Sakamoto ,  Toru Kobayashi ,  Masahiko Azegami ,  Yasuaki Motegi ,  Takaya Kato ,  Yasuo Matsuda ,  Kazuo Onishi ,  Naoyuki Kanamori ,  Tadashi Fukushima

Inventor： Shoji Oiwa ,  Masafumi Sakamoto ,  Toru Kobayashi ,  Masahiko Azegami ,  Yasuaki Motegi ,  Takaya Kato ,  Yasuo Matsuda ,  Kazuo Onishi ,  Naoyuki Kanamori ,  Tadashi Fukushima

IPC: H02K37/12

CPC classification number: H02K37/18 ,  H02K1/2713 ,  H02K16/02 ,  H02K2201/06 ,  H02K2213/03

Abstract: A stepping motor includes: a stator having main magnetic poles each having small stator teeth on its tip, a core-back portion that connects outer portions of the poles, and windings wound around the poles; and two sets of rotor units that are arranged in an axial direction and face the stator with an air gap therebetween. Each rotor unit consists of two rotor cores that are separated in the axial direction and a magnet sandwiched thereby and magnetized in the axial direction. Each rotor core has small rotor teeth around its outer surface. The rotor cores of each rotor unit are deviated by ½ pitch of the small rotor teeth, and the two rotor units are arranged to make the magnetic polarities of the small rotor teeth of the adjacent two rotor cores identical. A magnet thickness Tm and a rotor core thickness Tc satisfy 0.25≦Tm/Tc≦0.45.

Abstract translation: 步进电动机包括：定子，其顶端具有小的定子齿的主磁极，连接极的外部的芯部部分和绕磁极缠绕的绕组; 以及两组转子单元，其在轴向方向上布置并且与定子面对并具有气隙。 每个转子单元由沿轴向分离的两个转子芯和由其夹在其中并在轴向上被磁化的磁体组成。 每个转子芯在其外表面周围具有小的转子齿。 每个转子单元的转子磁芯偏离小转子齿的1/2间距，并且两个转子单元布置成使相邻两个转子磁芯的小转子齿的磁极相同。 磁体厚度Tm和转子芯厚度Tc满足0.25

公开(公告)号：US07569953B2

公开(公告)日：2009-08-04

申请号：US11300549

申请日：2005-12-14

Applicant: Akira Koike ,  Ikuo Takeshita

Inventor： Akira Koike ,  Ikuo Takeshita

IPC: H02K37/12

CPC classification number: H02K37/14

Abstract: Depressed portions for being fitted with two rotor collars 51, 52 are formed in two rotor stacks 72, 71 opposed to each other in an axial direction of the rotating shaft 1 with the rotor collars 51, 52 therebetween. Each of the rotor collars 51, 52 includes a central portion 5a and a pair of fitting portions 5b. Shapes of the depressed portions 8A and fitting portions 5b are both defined so that there occurs no relative displacement in the radial direction of the rotating shaft 1 between the rotor stacks 72, 71 and the rotor collars 51, 52 with the fitting portions 5b fitted into the depressed portions 8A. With this arrangement, position alignment of rotor collar and rotating shaft can easily be performed.

Abstract translation: 用于装配有两个转子套环51,52的凹陷部分形成在两个转子叠层72,71中，转子套筒72,71在旋转轴1的轴向上彼此相对，转子套环51,52在它们之间。 每个转子套环51,52包括中心部分5a和一对装配部分5b。 凹部8A和嵌合部5b的形状都被限定为使得转子叠层72,71与转子轴环51,52之间的旋转轴1的径向方向上不发生相对位移，并且嵌合部5b嵌入 凹部8A。 通过这种布置，可以容易地进行转子轴环和转轴的位置对准。