公开(公告)号：US09293974B2

公开(公告)日：2016-03-22

申请号：US14054955

申请日：2013-10-16

Applicant: FANUC CORPORATION

Inventor： Takuya Maeda ,  Reo Arai

IPC: H02K7/04 ,  H02K29/03 ,  H02K1/16

CPC classification number: H02K29/03 ,  H02K1/16 ,  H02K7/04 ,  H02K2201/06 ,  H02K2213/03

Abstract: An electric motor includes a stator having a core back which varies in width in a circumferential direction, and a rotor provided with permanent magnets. In the electric motor, cogging torque is generated M times during one revolution of the rotor, due to the number of magnetic poles of the rotor and the varied shape of the core back. The core back is provided with a step shift by an angle obtained by multiplying (360/M/2) degrees with an odd number. According to one embodiment, the core back may be provided with holes, concave portions or convex portions, so as to provide the core back with the step shift.

Abstract translation: 电动机包括具有在周向上宽度变化的芯背的定子和设置有永磁体的转子。 在电动机中，由于转子的磁极数和芯背的变化形状，在转子的一转期间齿槽转矩产生M次。 芯背设置有通过将（360 / M / 2）度与奇数相乘得到的角度的阶跃移位。 根据一个实施例，芯背可以设置有孔，凹部或凸部，以便使芯返回步进位移。

公开(公告)号：US20160013688A1

公开(公告)日：2016-01-14

申请号：US14794388

申请日：2015-07-08

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： ANDREAS MÄNNL

IPC: H02K1/27

CPC classification number: H02K1/278 ,  H02K1/2706 ,  H02K1/274 ,  H02K1/2753 ,  H02K2201/06

Abstract: A laminated core arrangement for an electric machine includes a laminated core having at least two part cores which are arranged in an axial direction. Each of the part cores has a plurality of polygonal individual sheets, with at least one of the individual sheets being round and disposed between the part cores. The at least one round individual sheet has a diameter which is less than or equal to an inner circle of the polygonal individual sheets. Permanently-excited magnets are disposed around a circumference of the laminated core.

Abstract translation: 电机的层叠铁芯装置包括具有沿轴向布置的至少两个芯部的层压铁心。 每个部分芯具有多个多边形单独的片，其中至少一个单独的片是圆形的并且设置在部分芯之间。 所述至少一个圆形单独片材的直径小于或等于所述多边形单独片材的内圆。 永久激发的磁体设置在层叠芯的圆周周围。

公开(公告)号：US20150357892A1

公开(公告)日：2015-12-10

申请号：US14758298

申请日：2013-04-22

Applicant: Mitsubishi Electric Corporation

Inventor： Masatsugu NAKANO ,  Yu HIROTANI ,  Satoru AKUTSU ,  Toyoaki UDO ,  Yuji TAKIZAWA

IPC: H02K29/03 ,  B62D5/04 ,  H02K3/12 ,  H02K3/28 ,  H02K1/27 ,  H02K21/14

CPC classification number: H02K29/03 ,  B62D5/0424 ,  H02K1/2773 ,  H02K1/278 ,  H02K3/12 ,  H02K3/28 ,  H02K11/33 ,  H02K21/14 ,  H02K2201/06 ,  H02K2213/03 ,  H02P6/10 ,  H02P25/22

Abstract: To provide a permanent magnet type motor having reduced torque ripple, in which torque ripples for electric angle sixth order and twelfth order are both reduced with a small skew angle.Driving is performed such that phases of currents flowing in two sets of three-phase armature windings 26-1 and 26-2 are different from each other by 20 degrees to 40 degrees in electric angle. A rotor 11 is composed of m stages of rotor component units arranged in the axial direction. The m stages of rotor component units are skewed to have a stage-skew structure such that a skew angle θ (unit: degree) between the adjacent units satisfies 26/m≦θ≦43.2/m (m is an integer equal to or greater than 2) in electric angle.

Abstract translation: 为了提供具有减小的扭矩波动的永磁式电动机，其中电角度第六级和第十二级的扭矩波动都以小的倾斜角度减小。 执行驱动，使得在两组三相电枢绕组26-1和26-2中流动的电流的相位在电角度彼此相差20度至40度。 转子11由沿轴向配置的m级转子部件单元构成。 转子部件单元的m级倾斜以具有阶偏斜结构，使得倾斜角度和角度; （单位：度）在电角度中满足26 / m＆nlE;＆amp; thetas;＆nlE; 43.2 / m（m是等于或大于2的整数）。

公开(公告)号：US09209671B2

公开(公告)日：2015-12-08

申请号：US13590691

申请日：2012-08-21

Applicant: Tae-Sang Park ,  Hong-Soon Choi ,  Won-Ho Kim

Inventor： Tae-Sang Park ,  Hong-Soon Choi ,  Won-Ho Kim

IPC: H02K23/44 ,  H02K21/16

CPC classification number: H02K21/16 ,  H02K2201/06 ,  H02K2213/09

Abstract: A stator module and a motor including the stator module are provided. The motor includes a stator and a stator module. The rotor includes a rotor core and a plurality of rotor poles arranged around a circumference of the rotor core, each generating a magnetic flux. The stator module includes a first stator and a second stator disposed coaxially with each other, each being rotatable in a circumferential direction and each having a coil wound thereon, and a rotation driving unit which controls a rotation of the first stator and the second stator through the same angle in opposite directions, thereby controlling a flux linkage of a rotor according to the rotational angle of each of the first stator and the second stator.

Abstract translation: 提供了包括定子模块的定子模块和电动机。 电动机包括定子和定子模块。 转子包括转子芯和围绕转子芯的圆周设置的多个转子磁极，每个转子磁极产生磁通量。 定子模块包括彼此同轴设置的第一定子和第二定子，每个定子可沿圆周方向旋转，并且每个都具有卷绕在其上的线圈，以及旋转驱动单元，其控制第一定子和第二定子的旋转通过 在相反方向上具有相同的角度，从而根据第一定子和第二定子中的每一个的旋转角来控制转子的磁链。

公开(公告)号：US20150318773A1

公开(公告)日：2015-11-05

申请号：US14693502

申请日：2015-04-22

Applicant: MANDO CORPORATION

Inventor： Tae Sik KIM

IPC: H02K21/02 ,  H02K1/28 ,  H02K1/27

CPC classification number: H02K1/278 ,  H02K1/28 ,  H02K16/02 ,  H02K21/029 ,  H02K2201/06 ,  H02K2213/09

Abstract: The present invention relates to a motor. According to one embodiment of the present invention, a skew angle is changed according to a load condition so that noise and vibration can be reduced as compared to a conventional motor.

Abstract translation: 电动机技术领域本发明涉及一种电动机。 根据本发明的一个实施例，根据负载条件改变倾斜角度，使得与常规电动机相比可以降低噪声和振动。

公开(公告)号：US09071117B2

公开(公告)日：2015-06-30

申请号：US13148863

申请日：2010-02-12

Applicant: Tim Woolmer

Inventor： Tim Woolmer

IPC: H02K29/03 ,  H02K21/12 ,  H02K21/24

CPC classification number: H02K21/24 ,  H02K1/182 ,  H02K29/03 ,  H02K2201/06

Abstract: An electric machine (10; 100) comprises a rotor (14) having permanent magnets (24) and a stator (12) having coils (22) wound on stator bars (16) for interaction with the magnets across an air gap (26a, b) defined between them. The rotor has two stages (14a, b) arranged one at either end of the bars. The bars have a shoe (18a, 8) at each end of each bar that links magnetic flux through the bars with said magnets on each stage. Adjacent shoes facing the same stage of the rotor have a high-reluctance shoe gap (27) between them; adjacent magnets on each stage of the rotor have a high-reluctance magnet gap (25) between them; and the shoe and magnet gaps (25, 27) are angled with respect to each other such that they engage progressively as the rotor rotates. Alternatively, the shoes facing each stage are in a ring of connected shoes such that the magnets experience a continuous reluctance that is at least 90% constant as a function of rotor position. The bars (16) and shoes (18) are formed separately from one another and at least a part of each is formed by moulding soft-iron particles so that the particles have a short dimension that is arranged transverse a reluctance-plane. The bars and shoes are assembled so that the reluctance-plane of the bar is parallel a longitudinal axis (16a) of the bar and said reluctance-plane of the shoe is transverse said longitudinal axis.

Abstract translation: 电机（10; 100）包括具有永磁体（24）和定子（12）的转子（14），所述定子（12）具有卷绕在定子杆（16）上的线圈（22），用于与所述磁体相互穿过气隙 b）在它们之间定义。 转子具有在杆的任一端布置成一个的两个阶段（14a，b）。 这些杆在每个杆的每个端部处具有鞋（18a，8），其在每个台上与所述磁体连接通过杆的磁通。 面向转子相同阶段的相邻鞋子在它们之间具有高磁阻鞋间隙（27）; 在转子的每个级上的相邻磁体在它们之间具有高磁阻磁体间隙（25）; 并且鞋和磁体间隙（25,27）相对于彼此成角度，使得它们随着转子旋转而逐渐接合。 或者，面向每个台阶的鞋子处于连接的鞋的环中，使得磁体经历作为转子位置的函数至少90％恒定的连续磁阻。 杆（16）和鞋（18）彼此分开地形成，并且每个的至少一部分通过模制软铁颗粒形成，使得颗粒具有横向于磁阻平面的短尺寸。 杆和鞋被组装成使得杆的磁阻平面平行于杆的纵向轴线（16a），并且所述鞋的所述磁阻平面横向于所述纵向轴线。

公开(公告)号：US09065319B2

公开(公告)日：2015-06-23

申请号：US13616085

申请日：2012-09-14

Applicant: Junya Ono ,  Kazuhiko Nakamura ,  Yasushi Fujimoto ,  Makoto Fujikubo ,  Naoki Kobayashi

Inventor： Junya Ono ,  Kazuhiko Nakamura ,  Yasushi Fujimoto ,  Makoto Fujikubo ,  Naoki Kobayashi

IPC: H02K16/02 ,  H02K7/116 ,  H02K21/02 ,  H02K7/14

CPC classification number: H02K21/024 ,  B60L11/18 ,  B60L2200/12 ,  B60L2220/46 ,  H02K7/116 ,  H02K7/12 ,  H02K7/14 ,  H02K16/02 ,  H02K2201/06 ,  H02K2213/09 ,  Y02T10/641 ,  Y02T10/7005

Abstract: A rotor placed inside or outside of a stator in the radius direction includes a fixed rotor fixed in a position along a rotation axis of the rotor, and a movable rotor allowed to approach/separate from the fixed rotor and to move in a direction along the rotation axis.

Abstract translation: 设置在半径方向的定子的内部或外部的转子包括固定在沿着转子的旋转轴的位置的固定转子，以及允许与固定转子接近/分离的可动转子，并沿着沿着 旋转轴。

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。

公开(公告)号：US20150069879A1

公开(公告)日：2015-03-12

申请号：US14313380

申请日：2014-06-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Francesco Papini ,  Alexander Felix Fiseni ,  Mohamed Osama ,  Manoj Ramprasad Shah

IPC: H02K1/28 ,  H02K1/24 ,  H02K19/14 ,  H02K15/03 ,  H02K1/27

CPC classification number: H02K1/246 ,  H02K1/2766 ,  H02K1/30 ,  H02K2201/06 ,  Y10T29/49012

Abstract: A component that includes a longitudinal axle, having a multiple keybars that extend outward from a surface of the axle, such that each of the keybars are disposed axially along and circumferentially around the axle. Also the axis of the keybars is parallel to the axle, such that a profile of all midpoints of the keybars is helicoidal around the axle, also the helicoidal profile is such that they make up one or more helicoidal paths. The profile may be herringbone skewed. The component may be part of a rotor assembly that is part of an electric machine such as an interior permanent magnet (IPM) or Synchronous Reluctance motor.

Abstract translation: 一种包括纵向轴的部件，其具有从所述轴的表面向外延伸的多个键杆，使得每个所述键棒沿着所述轴线并沿周向设置。 键杆的轴线也平行于车轴，使得钥匙杆的所有中点的轮廓在轴上是螺旋形的，并且螺旋形轮廓使得它们构成一个或多个螺旋路径。 轮廓可能是人字歪斜。 该部件可以是作为诸如内部永磁体（IPM）或同步磁阻电动机的电机的一部分的转子组件的一部分。

公开(公告)号：US20150028709A1

公开(公告)日：2015-01-29

申请号：US14338650

申请日：2014-07-23

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takashi UEDA ,  Masanori ARATA ,  Takaaki HIROSE ,  Shinya NAKAYAMA ,  Hideyuki NAKAMURA

IPC: H02K1/28 ,  H02K1/27

CPC classification number: H02K1/28 ,  H02K1/2706 ,  H02K1/278 ,  H02K1/30 ,  H02K7/1838 ,  H02K2201/06 ,  H02K2213/03 ,  Y02B10/30 ,  Y02E10/725

Abstract: According to one embodiment, there is provided an electric rotating apparatus including a permanent magnet type rotor in which wedge-shaped slots are formed on an outer circumferential portion of a rotor core along an axial direction of a rotor, and permanent magnets are fitted in the wedge-shaped slots, thereby forming a plurality of rotor magnetic poles. Nonmagnetic regions extending in the axial direction of the rotor core are formed between the plurality of rotor magnetic poles.

Abstract translation: 根据一个实施例，提供了一种电动旋转装置，其包括永久磁铁式转子，其中楔形槽沿着转子的轴向形成在转子芯的外周部上，并且永久磁铁安装在 楔形槽，从而形成多个转子磁极。 在多个转子磁极之间形成有沿转子芯的轴向延伸的非磁性区域。