公开(公告)号：US09729019B2

公开(公告)日：2017-08-08

申请号：US14390816

申请日：2012-05-01

Applicant: Ryuichi Shimomura ,  Masaya Inoue

Inventor： Ryuichi Shimomura ,  Masaya Inoue

IPC: H02K1/28 ,  H02K7/08 ,  H02K1/30 ,  H02K1/06

CPC classification number: H02K1/28 ,  H02K1/06 ,  H02K1/30 ,  H02K7/083 ,  H02K7/085 ,  H02K2201/06

Abstract: Provided is a rotor structure of a rotary electric machine, which is easily adaptable to offer a wide variety of products. The rotor structure of a rotary electric machine includes at least: a rotor shaft (3); a rotor core including a first rotor core section (15) and a second rotor core section (17); a boss section (9); and a pressurizing section. The second rotor core section and the boss section are arranged on an outer circumference of the rotor shaft. The first rotor core section is arranged on an outer circumference of the boss section. The pressurizing section is positioned on an axially outer side of the rotor core. The second rotor core section is pressurized by an abutment surface of the boss section. The first rotor core section arranged on the boss section is pressurized by the pressurizing section.

公开(公告)号：US09692284B2

公开(公告)日：2017-06-27

申请号：US14939316

申请日：2015-11-12

Applicant: ARM Limited

Inventor： David Pietromonaco

IPC: H02P25/08 ,  H02K16/04 ,  H02K1/18 ,  H02K19/10 ,  H02K3/28

CPC classification number: H02K16/04 ,  H02K1/185 ,  H02K3/28 ,  H02K19/103 ,  H02K2201/06 ,  H02P25/08

Abstract: An electric motor apparatus comprises a rotor and a stator formed of at least two stator components, each of the at least two stator components having a substantially hollow cylindrical form. The rotor is mounted within the at least two stator components on a rotational mounting such that the rotor can rotate about a longitudinal central axis with respect to the stator. Each of the at least two stator components has at least two protrusions arranged at different circumferential points on an inner surface of the at least two stator components. Each protrusion has a winding mounted thereon. Control circuitry generates control signals to control power supplied to the windings on each stator component such that power can be controlled to each stator component independently. The stator components are mounted adjacent to each other along the longitudinal central axis and rotationally offset with respect to each other such that the two protrusions on one of the stator components are offset with respect to the protrusions on an adjacently mounted stator component, such that a portion of each winding that extends beyond a longitudinal end of the protrusions on one of the stator components fits within a gap between windings mounted on the adjacently mounted stator component.

公开(公告)号：US09627933B2

公开(公告)日：2017-04-18

申请号：US14466392

申请日：2014-08-22

Applicant: Johnson Electric S.A.

Inventor： Mao Xiong Jiang ,  Yue Li ,  Tao Zhang ,  San Yuan Xiao ,  Lik Hon Chan

IPC: H02K1/27 ,  F04F5/16 ,  F04F5/46

CPC classification number: H02K1/278 ,  F04F5/16 ,  F04F5/46 ,  H02K2201/06 ,  Y10T137/2224

Abstract: A brushless motor includes a stator comprising a stator core with teeth protruding inwardly and windings wound on the teeth, and a rotor comprising a shaft, a rotor core fixed to the shaft, and a ring magnet fixed to the circumferential outer surface of the rotor core. The ring magnet includes a plurality of magnetic poles radially magnetized so that north poles and south poles are arranged alternately in the circumferential direction, boundary lines between adjacent magnetic poles being skewed by an angle α relative to an axis of the shaft. A plurality of grooves are formed in a circumferential outer surface of the rotor core. Each groove extends from one axial end to the other axial end of the rotor core, has a circumferential width smaller than each of the magnetic poles, and is covered by the ring magnet with a void formed between the groove and the ring magnet.

公开(公告)号：US20170093260A1

公开(公告)日：2017-03-30

申请号：US15281954

申请日：2016-09-30

Applicant: Johnson Electric S.A.

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

IPC: H02K21/16 ,  H02K3/28 ,  H02K3/18 ,  H02K1/27 ,  H02K1/14

CPC classification number: H02K21/16 ,  H02K1/146 ,  H02K1/2706 ,  H02K1/278 ,  H02K3/18 ,  H02K3/28 ,  H02K3/325 ,  H02K5/15 ,  H02K29/03 ,  H02K2201/03 ,  H02K2201/06

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. Air gaps are formed between an outer circumferential surface of the rotor and respective pole faces of the first teeth and the second teeth. Each of the air gaps is asymmetrical with regarded to a central line of the corresponding one of the first teeth and the second teeth.

公开(公告)号：US20170085143A1

公开(公告)日：2017-03-23

申请号：US15126503

申请日：2015-02-24

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Toshinori TANAKA ,  Eigo TOTOKI ,  Ryuichi TAKIGUCHI

IPC: H02K1/27 ,  H02K1/14

CPC classification number: H02K1/2706 ,  H02K1/146 ,  H02K1/276 ,  H02K1/278 ,  H02K29/03 ,  H02K2201/03 ,  H02K2201/06 ,  H02K2213/03

Abstract: R1>R2>R3 is satisfied, where R1 is a radius of curvature of a cylindrical surface that contacts circular arc-shaped curved surfaces arranged circumferentially, R2 is a radius of curvature of the circular arc-shaped curved surfaces, and R3 is a radius of curvature of an upper surface of permanent magnets, air gaps are formed on radially outer portions of two circumferential side portions of magnet housing apertures, surfaces that contact two circumferential side surfaces of the permanent magnets so as to be parallel to a radial direction are disposed on radially inner portions of the two circumferential end portions, and B2>B1 is satisfied, where B1 is a thickness of a core portion of the rotor core between the circular arc-shaped curved surfaces and the magnet housing apertures at a magnetic pole center, and B2 is a thickness of a circumferential end portion of the core portion.

公开(公告)号：US20160380489A1

公开(公告)日：2016-12-29

申请号：US15121389

申请日：2015-03-12

Applicant: Aldan Asanovish SAPARGALIYEV

Inventor： Aldan Asanovich SAPARGALIYEV

IPC: H02K1/08 ,  H02K1/30 ,  H02K41/02 ,  H02K1/18

CPC classification number: H02K1/08 ,  H02K1/14 ,  H02K1/182 ,  H02K1/30 ,  H02K3/28 ,  H02K21/24 ,  H02K41/02 ,  H02K2201/06 ,  H02K2213/03

Abstract: The present invention relates to electric machines (EM), such as electric motors and electric generators, which convert electrical energy into mechanical energy and mechanical energy into electricity respectively, including linear motion EMs, curvilinear motion EMs and rotary (turning) motion EMs. More particularly, the present invention relates to an EM induction method and device, said induction system comprising two main magnetic coupling subsystems, for example a subsystem comprising permanent magnets and a subsystem comprising electromagnets. Thus, EM induction system comprises at least one special feature chosen from the group consisting of the following kinds (a)-(c):(a) it is configured as a multiple-vector (MV) system and it is configured such as to provide multiple-vector coupling; (b) at least one of the permanent magnets is selected from the group consisting of: a closed-laminated permanent magnet; and a Π-shaped anti-symmetric group of permanent magnets. (c) the induction system is vertically configured of multiple rows and comprises, in a vertical direction, two or more electromagnetic induction blocks.

Abstract translation: 本发明涉及电动机（EM），例如电动机和发电机，其分别将电能转换成机械能和机械能，包括直线运动EM，非线性运动EM和旋转（转动）运动EM。 更具体地说，本发明涉及一种EM感应系统操作方法和装置，所述感应系统包括两个主磁耦合子系统，例如包括永磁体的子系统和包括电磁体的子系统。 此外，EM感应系统包括从由以下类型（a） - （c）组成的组中选择的至少一种特殊特性：（a）其被配置为多向量（MV）系统，并且感应系统 配置为提供多向量耦合; （b）永磁体中的至少一个选自包含封闭层压永磁体的组; 和U形反对称组的永磁体; （c）感应系统由多列垂直构成，并且在垂直方向上包括两个或更多个电磁感应单元。

公开(公告)号：US20160336822A1

公开(公告)日：2016-11-17

申请号：US15111481

申请日：2014-12-29

Applicant: LETRIKA D.D.

Inventor： Lovrenc Gasparin ,  Alan Vivic

IPC: H02K1/27 ,  H02K21/14

CPC classification number: H02K1/2706 ,  H02K1/276 ,  H02K1/2766 ,  H02K21/14 ,  H02K2201/06 ,  H02K2213/03

Abstract: A rotor stack of an electric motor may include a gap for insertion of at least two permanent magnets of an individual magnet pole. The gap may include a central connecting element and at least two side connecting elements, which mechanically connect an inner part and an outer part of the rotor stack, so that the at least two side connecting elements define an air barrier having a form of a polygon. The air barrier in an outer corner of the gap may extend to at least two side of a respective one of the at least two permanent magnets. According to an implementation, the respective permanent magnets may be configured as a cuboid.

Abstract translation: 电动机的转子堆可以包括用于插入单个磁极的至少两个永磁体的间隙。 间隙可以包括中心连接元件和至少两个侧连接元件，其将机械地连接转子堆叠的内部部分和外部部分，使得至少两个侧面连接元件限定具有多边形形式的空气阻挡件 。 间隙的外角中的空气阻挡件可以延伸到至少两个永磁体中的相应一个的至少两个侧面。 根据实施方式，各永磁体可以构成为长方体。

公开(公告)号：US20160315528A1

公开(公告)日：2016-10-27

申请号：US15104298

申请日：2014-02-17

Applicant: Mitsubishi Electric Corporation

Inventor： Yuji TAKIZAWA ,  Shusuke HORI ,  Takanori ICHIKAWA ,  Toyoaki UDO ,  Satoru AKUTSU

IPC: H02K29/03 ,  H02K21/16 ,  H02K11/33 ,  H02K1/27

CPC classification number: H02K29/03 ,  H02K1/2746 ,  H02K1/278 ,  H02K3/28 ,  H02K11/33 ,  H02K21/16 ,  H02K2201/06 ,  H02K2213/03 ,  H02K2213/12

Abstract: In a permanent magnet motor, projections each include a second projecting portion and a first projecting portion separated away from a side surface of a permanent magnet. When the first projecting portion has a total length L1 in an axial line direction and a height t1, and when the second projecting portion has a total length L2 in the axial line direction and a height t2, (L1×t1)>(L2×t2) is satisfied. As a result, the permanent magnet motor capable of reducing vibration noise of the motor by reducing irregular rotation, reducing decrease in motor torque, and further reducing increase in motor physical size can be obtained.

Abstract translation: 在永磁电动机中，突起部分包括第二突出部分和与永磁体的侧表面分离的第一突出部分。 当第一突出部分具有在轴线方向上的总长度L1和高度t1时，并且当第二突出部分在轴线方向上具有总长度L2和高度t2时，（L1×t1）>（L2× t2）。 结果，可以获得能够通过减少不规则旋转，减小电动机转矩的降低并进一步减小电动机物理尺寸的增加来减少电动机的振动噪声的永磁电动机。

公开(公告)号：US20160241123A1

公开(公告)日：2016-08-18

申请号：US15027880

申请日：2014-08-29

Applicant: HITACHI METALS, LTD.

Inventor： Hiromitsu OHHASHI

IPC: H02K49/10

CPC classification number: H02K49/102 ,  F16H49/00 ,  H02K16/02 ,  H02K49/106 ,  H02K2201/06

Abstract: Cylindrical outer and inner rotors coaxially supported so as to be rotatable, and a cylindrical stator interposed between the rotors are provided, and rotational torque is transmitted between the outer rotor and the inner rotor by interaction between: a plurality of magnets uniformly arranged on the inner circumference of the outer rotor; a plurality of magnets uniformly arranged on the outer circumference of the inner rotor; and a plurality of magnetic bodies juxtaposed at equal intervals in the circumferential direction of the stator. Rod-shaped magnetic bodies extending in the axial direction of the stator are used, and each magnetic body is placed in skew arrangement with a deviation amount in the circumferential direction corresponding to 1/12 to ¼ of the juxtaposition pitch in the circumferential direction between one axial end and the other axial end. Such arrangement can effectively reduce cogging torque, and realize stable power transmission under small torque fluctuation while ensuring high torque density.

Abstract translation: 圆柱形外转子和内转子同轴支撑以便可旋转，并且设置在转子之间的圆柱形定子，并且旋转扭矩在外转子和内转子之间通过以下之间的相互作用传递：多个均匀地布置在内转子 外转子周长; 均匀地布置在所述内转子的外周上的多个磁体; 以及在定子的圆周方向上以等间隔并列的多个磁体。 使用在定子的轴向方向延伸的杆状磁体，并且每个磁体被置于偏斜布置中，其周向上的偏移量对应于沿圆周方向的并列间距的1/12至1/4，在一个 轴向端部和另一个轴向端部。 这样可以有效地减少齿槽转矩，并且在确保高转矩密度的同时，在小扭矩波动下实现稳定的动力传递。

公开(公告)号：US20160241115A1

公开(公告)日：2016-08-18

申请号：US15019440

申请日：2016-02-09

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kenichi Ono ,  Manabu Yamamoto ,  Hideaki Onda

IPC: H02K15/02

CPC classification number: H02K15/02 ,  H02K2201/06

Abstract: A skew correction device is provided that can easily correct the skew in the circumferential direction of the stator core arising due to insertion of electrical conductors into each slot and twisting and bending of the leading ends thereof in the circumferential direction. A skew correction device (10) for stator cores (2), includes: a support member (71) capable of supporting from outwards a protrusion (5) formed by the plurality of projecting parts (21) aligning; a first pressurizing mechanism (72) for pressing the support member (71) towards an inner side in a radial direction; and a rotation mechanism (73) for correcting skew in the circumferential direction, by causing the support member (71) to rotate in a direction in which the skew in the circumferential direction is corrected by way of a rotating shaft (731), in a state supporting the protrusion (5) from outwards by pressing the support member (71).

Abstract translation: 提供一种倾斜校正装置，其可以容易地校正由于将导体插入每个槽中而导致的定子芯的圆周方向上的偏斜，并且其前端在圆周方向上的扭曲和弯曲。 一种用于定子铁芯（2）的歪斜矫正装置（10），包括：支撑构件（71），其能够从外部支撑由所述多个突出部分（21）形成的突起（5）对准; 第一加压机构（72），用于将所述支撑构件（71）沿径向向内侧按压; 以及旋转机构（73），用于通过使支撑构件（71）沿着周向的倾斜方向旋转，通过旋转轴（731）进行校正，来校正圆周方向上的歪斜， 通过按压支撑构件（71）从外部支撑突起（5）的状态。