公开(公告)号：US20170194825A1

公开(公告)日：2017-07-06

申请号：US15237275

申请日：2016-08-15

Applicant: SEW-EURODRIVE GMBH & CO. KG

Inventor： Helmut Nestler

IPC: H02K1/27 ,  H02K21/14

CPC classification number: H02K1/2706 ,  H02K1/278 ,  H02K21/14 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: A synchronous motor includes a stator with a stator winding, and a rotor on which magnetic poles made of permanent-magnetic material are formed, each pole having a cambered outer contour, especially an outer contour cambered radially outwards, in particular, 2×p individual poles being salient in the circumferential direction, p being the number of pole pairs.

公开(公告)号：US20170104399A1

公开(公告)日：2017-04-13

申请号：US15288277

申请日：2016-10-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae-ho YOON ,  Byoung-soo Ko ,  Hong-seok Kim ,  Hyung-chul Lee ,  Young-kwan Kim

IPC: H02K21/14 ,  F04C23/00 ,  H02K7/14 ,  H02K1/14 ,  H02K1/27 ,  H02K3/18 ,  F04C18/34 ,  F04C29/02

CPC classification number: H02K21/14 ,  F04C18/34 ,  F04C23/003 ,  F04C29/02 ,  F04C2210/26 ,  F04C2240/40 ,  H02K1/146 ,  H02K1/2706 ,  H02K3/18 ,  H02K7/14 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: An electric motor is provided. The electric motor includes a hollow-shaped stator configured to have a teeth part protruding on an inner surface thereof, and a rotor configured to be inserted into the hollow-shaped rotor, and including an outer surface facing the teeth part, and a plurality of poles therein. The rotor includes a bridge part disposed between poles and has a front rotor groove and a back rotor groove that are each dented at a front and a back of the bridge part with respect to a rotating direction of the rotor.

公开(公告)号：US20170093233A1

公开(公告)日：2017-03-30

申请号：US15282046

申请日：2016-09-30

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

IPC: H02K1/14 ,  H02K1/27 ,  H02K1/28 ,  H02K21/16

CPC classification number: H02K1/146 ,  H02K1/148 ,  H02K1/2706 ,  H02K1/278 ,  H02K1/28 ,  H02K3/325 ,  H02K21/16 ,  H02K29/03

Abstract: A brushless motor includes a stator and a rotor. The stator includes a stator core and two windings. The stator core includes a yoke, two opposing first teeth, and two second teeth. The windings are respectively wound around the two first teeth. The second teeth are not wound with any winding. The first and second teeth are alternatively arranged. The rotor is received in a space cooperatively bounded by the pole shoes of the main and second teeth. A plurality of slot openings is defined between the pole shoes of the first teeth and adjacent pole shoe of the adjacent second teeth, which reduces the magnetic leakage and increases the motor power density.

公开(公告)号：US20170063208A1

公开(公告)日：2017-03-02

申请号：US15240381

申请日：2016-08-18

Applicant: Johnson Electric S.A.

Inventor： Yue Li ,  Chui You ZHOU ,  Yong WANG ,  Yong LI

IPC: H02K19/04 ,  H02K1/16 ,  H02K15/095 ,  H02K3/18 ,  H02K15/02 ,  H02K1/14 ,  H02K1/27

CPC classification number: H02K19/04 ,  H02K1/146 ,  H02K1/16 ,  H02K1/2706 ,  H02K1/278 ,  H02K3/18 ,  H02K15/02 ,  H02K15/095 ,  H02K29/03 ,  H02K2201/03

Abstract: A single phase permanent magnet motor and a method for making the same are provided. The method includes the steps of: configuring a stator core, wherein the stator core comprises a first ring portion, tooth bodies, and a pole shoe extending from each tooth body, a slot opening is defined between each two adjacent pole shoes, at least one pole shoe includes a main portion, a connecting portion and an easily bendable tip, the easily bendable tip is bent relative to the main portion about the connecting portion; winding a stator winding around the stator core; and bending the easily bendable tip about the connecting portion to narrow the slot opening. The present invention can change the size of the slot opening, thus more rapidly finishing the winding of the stator winding and enhancing the efficiency of the motor fabrication.

Abstract translation: 提供单相永磁电动机及其制造方法。 该方法包括以下步骤：构造定子铁心，其中定子铁芯包括第一环部分，齿体和从每个齿体延伸的极靴，每个两个相邻的极靴之间限定有槽口，至少一个 极靴包括主要部分，连接部分和易弯曲的尖端，容易弯曲的尖端相对于主要部分围绕连接部分弯曲; 绕定子铁心缠绕定子绕组; 并且使所述容易弯曲的尖端围绕所述连接部弯曲以使所述狭槽开口变窄。 本发明可以改变槽开口的尺寸，从而更快速地完成定子绕组的绕组并提高电机制造的效率。

公开(公告)号：US20170018980A1

公开(公告)日：2017-01-19

申请号：US15210517

申请日：2016-07-14

Applicant: Bergstrom, Inc.

Inventor： Kuilin YANG ,  Gengxiang LI ,  Lei WANG

IPC: H02K1/27 ,  H02K1/14

CPC classification number: H02K29/03 ,  H02K1/146 ,  H02K1/2766 ,  H02K2201/03 ,  H02K2213/03

Abstract: A brushless motor includes a stator having stator core and winding teeth evenly distributed on the stator core; and a rotor rotatably disposed within the stator with the winding teeth facing the rotor, where the rotor has a rotor core and magnets evenly distributed around the rotor core. A first symmetry axis is defined passing through a center of a one of the magnets to a center of the rotor, and a second symmetry axis is defined passing between adjacent magnets to the center of the rotor. A first distance between the outer surface of the rotor to a surface of a winding tooth when the first axis is aligned with the winding tooth is smaller than a second distance between the outer surface of the rotor to the surface of the winding tooth when the second axis is aligned with the winding tooth.

Abstract translation: 无刷电动机包括具有均匀分布在定子铁芯上的定子铁芯和绕组齿的定子; 以及转子，其可旋转地设置在所述定子内，所述绕组齿面向所述转子，其中所述转子具有转子芯和围绕所述转子芯均匀分布的磁体。 第一对称轴被定义为通过一个磁体的中心到达转子的中心，并且第二对称轴被限定在相邻的磁体之间通过转子的中心。 当第一轴线与绕组齿对齐时，转子的外表面与绕组齿表面之间的第一距离小于当转子的外表面与绕组齿的表面之间的第二距离时， 轴与卷绕齿对齐。

公开(公告)号：US09537380B2

公开(公告)日：2017-01-03

申请号：US14005429

申请日：2012-01-18

Applicant: Shinichi Yamaguchi ,  Eigo Totoki ,  Masato Ito ,  Daisuke Nishijima ,  Toshinori Tanaka

Inventor： Shinichi Yamaguchi ,  Eigo Totoki ,  Masato Ito ,  Daisuke Nishijima ,  Toshinori Tanaka

IPC: H02K29/12 ,  H02K1/27 ,  H02P6/18 ,  H02K21/16 ,  H02K29/03

CPC classification number: H02K29/12 ,  H02K1/27 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03 ,  H02P6/183

Abstract: A permanent-magnet type rotating electrical machine, including a rotor including a plurality of magnetic poles arranged at an equal interval, and a stator including a plurality of teeth and a plurality of armature windings. A high frequency voltage different in frequency and amplitude from voltages for generating a torque is applied to the armature windings. A magnetic pole position of the rotor is estimated by using a current trajectory of a measured high frequency current. When dq transform is applied to the measured high frequency current, a current trajectory forms an ellipse on d and q axes. Angular variation ranges of a major axis of the ellipse with respect to a load current and a rotor position are set so as to acquire a predetermined position estimation resolution.

Abstract translation: 一种永磁式旋转电机，包括具有以相等间隔排列的多个磁极的转子和包括多个齿的定子和多个电枢绕组。 将频率和振幅与产生转矩的电压不同的高频电压施加到电枢绕组。 通过使用测量的高频电流的当前轨迹来估计转子的磁极位置。 当对测量的高频电流施加dq变换时，当前轨迹在d轴和q轴上形成一个椭圆。 椭圆相对于负载电流和转子位置的长轴的角度变化范围被设定为获得预定的位置估计分辨率。

公开(公告)号：US20160341219A1

公开(公告)日：2016-11-24

申请号：US15160225

申请日：2016-05-20

Applicant: Johnson Electric S.A.

Inventor： Yue Li ,  Chui You Zhou ,  Gang Li ,  Yong Wang ,  Yong Li ,  Wei Zhang ,  Ming Chen ,  Jie Chai ,  Kwong Yip Poon ,  Wen Liang Li ,  Lin Ping Gui

IPC: F04D29/66 ,  H02K1/27 ,  H02K5/16 ,  F04D17/16 ,  A47L5/12 ,  F04D29/28 ,  F04D29/44 ,  F04D29/42 ,  A45D20/00 ,  A47K10/48 ,  H02K1/14 ,  F04D25/06

CPC classification number: F04D29/661 ,  A45D20/00 ,  A47K10/48 ,  A47L9/0081 ,  F04D17/16 ,  F04D25/06 ,  F04D29/281 ,  F04D29/4226 ,  F04D29/441 ,  H02K1/148 ,  H02K7/14 ,  H02K29/03 ,  H02K2213/03

Abstract: A single-phase motor, an airflow generating apparatus, and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and stator windings. The stator core includes a ring-shaped yoke and multiple pole portions. A magnetic bridge or slot opening is formed between each two adjacent pole portions. An end surface of each pole portion includes an arc surface. A positioning groove is formed in each arc surface. The arc surfaces of the pole portions cooperatively form a receiving cavity. The rotor includes a rotary shaft and a permanent magnet fixed to the rotary shaft. The permanent magnet is received in the receiving cavity. The arc surfaces are located on a cylindrical surface centered around a rotation axis of the rotary shaft. The cogging torque of the motor can be reduced, thus reducing the startup current and hence the noise of the motor.

Abstract translation: 提供单相电动机，气流发生装置和电气设备。 电动机包括定子和转子。 定子包括定子铁心和定子绕组。 定子铁芯包括环形磁轭和多极部分。 在每个两个相邻的极部之间形成磁桥或槽开口。 每个极部分的端面包括弧形表面。 在每个弧形表面上形成定位槽。 极部分的弧形表面协同地形成接收腔。 转子包括旋转轴和固定到旋转轴的永磁体。 永磁体被容纳在接收腔中。 弧形表面位于围绕旋转轴的旋转轴线居中的圆柱形表面上。 可以减小电动机的齿槽转矩，从而降低启动电流，从而降低电机的噪音。

公开(公告)号：US09502928B2

公开(公告)日：2016-11-22

申请号：US13636303

申请日：2011-03-24

Applicant: Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Haruhiko Kado ,  Kiyomi Kawamura

Inventor： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Haruhiko Kado ,  Kiyomi Kawamura

IPC: H02K29/03 ,  H02K1/16 ,  H02K21/16 ,  H02K1/14

CPC classification number: H02K1/146 ,  H02K1/16 ,  H02K1/165 ,  H02K1/2733 ,  H02K3/18 ,  H02K21/16 ,  H02K29/03 ,  H02K2213/03

Abstract: A motor of this invention comprises a rotor having a permanent magnet, the number of which magnet poles is P, and a stator including M pcs of teeth, the teeth arranged in a circumferential direction in a manner to face the permanent magnet through a spatial gap, wherein the stator includes stator core having the number M of the teeth, and a winding wire wound about each of the tooth, wherein the number P of the magnet poles and the number M of the teeth have a relation defined by formulae (2/3)M

Abstract translation: 本发明的电动机包括具有永磁体的转子，磁极数为P的定子和包括M个齿的定子，所述齿沿圆周方向以通过空间间隙面对永磁体的方式布置 其特征在于，所述定子包括具有齿数M的定子铁芯和围绕各齿缠绕的绕组线，其中，所述磁极的数量P和所述齿的数量M具有由公式（2 / 3）M

公开(公告)号：US20160336834A1

公开(公告)日：2016-11-17

申请号：US15112658

申请日：2014-12-11

Applicant: WOBBEN PROPERTIES GMBH

Inventor： Volker Diedrichs

IPC: H02K7/18 ,  H02K19/16 ,  H02K11/04 ,  H02K11/049 ,  H02K1/16 ,  H02K29/03

CPC classification number: H02K7/1838 ,  H02K1/165 ,  H02K11/046 ,  H02K11/049 ,  H02K19/16 ,  H02K29/03 ,  H02K2213/03 ,  Y02E10/725

Abstract: A synchronous generator, in particular a multipole synchronous ring generator of a gearless wind turbine for generating electric current, comprising a rotor and a stator having teeth and slots arranged therebetween for receiving a stator winding, wherein the stator is divided in a circumferential direction into stator segments, each having a plurality of teeth and slots, and at least two stator segments being offset or interleaved with respect to one another in a circumferential direction.

Abstract translation: 一种同步发电机，特别是一种用于产生电流的无齿轮风力涡轮机的多极同步环形发电机，包括转子和定子，其具有布置在其间的齿和槽，用于接收定子绕组，其中定子沿圆周方向分成定子 每个段具有多个齿和槽，并且至少两个定子段在圆周方向上相对于彼此偏移或交错。

公开(公告)号：US09496759B2

公开(公告)日：2016-11-15

申请号：US14349720

申请日：2011-10-24

Applicant: Koji Yabe ,  Kazuhiko Baba

Inventor： Koji Yabe ,  Kazuhiko Baba

IPC: H02K21/12 ,  H02K1/27 ,  H02K29/03

CPC classification number: H02K1/276 ,  H02K29/03 ,  H02K2213/03

Abstract: A rotor of an interior permanent magnet motor includes a rotor core; permanent magnet insertion holes formed in an outer circumferential portion of the rotor core along a circumferential direction; a permanent-magnet end-portion air gap formed in each of both end portions of each permanent magnet insertion hole; a permanent magnet inserted in each permanent magnet insertion hole; and slits formed in an outer circumferential core portion on an outer side in a radial direction with respect to each permanent magnet insertion hole, wherein a width of a core present between the permanent-magnet end-portion air gap and the slit and a width of a core present between the slits are such that a width of a core gradually increases as the core is closer to a magnet pole center from the interpolar line.

Abstract translation: 内部永磁电动机的转子包括转子铁心; 永久磁铁插入孔沿圆周方向形成在转子芯的外周部分中; 形成在各永久磁铁插入孔的两端部的永久磁铁端部气隙; 永磁体插入每个永磁体插入孔中; 以及形成在相对于每个永磁体插入孔的径向外侧的外周芯部中的狭缝，其中存在于永磁体端部气隙和狭缝之间的芯的宽度和宽度 存在于狭缝之间的芯使得当芯从极间线更接近磁极中心时，芯的宽度逐渐增加。