公开(公告)号：US20050035673A1

公开(公告)日：2005-02-17

申请号：US10889980

申请日：2004-07-12

Applicant: Charles Lafontaine ,  Harold Scott

Inventor： Charles Lafontaine ,  Harold Scott

IPC: H02K1/18 ,  H02K1/27 ,  H02K1/30 ,  H02K7/09 ,  H02K9/06 ,  H02K9/08 ,  H02K9/19 ,  H02K11/04 ,  H02K9/00 ,  H02K5/00

CPC classification number: H02K21/22 ,  H02K1/187 ,  H02K1/2786 ,  H02K1/30 ,  H02K7/088 ,  H02K7/09 ,  H02K9/06 ,  H02K9/10 ,  H02K9/19 ,  H02K11/048 ,  H02K2201/03

Abstract: An apparatus for converting between mechanical and electrical energy, particularly suited for use as a compact high power alternator for automotive use and “remove and replace” retrofitting of existing vehicles. The apparatus comprises a rotor with permanent magnets, a stator with a winding, and a cooling system. Mechanisms to prevent the rotor magnets from clashing with the stator by minimizing rotor displacement, and absorbing unacceptable rotor displacement are disclosed. The cooling system directs coolant flow into thermal contact with at least one of the winding and magnets, and includes at least one passageway through the stator core. Various open and closed cooling systems are described. Cooling is facilitated by, for example, loosely wrapping the winding end turns, use of an asynchronous airflow source, and/or directing coolant through conduits extending through the stator into thermal contact with the windings.

Abstract translation: 用于在机械和电能之间转换的装置，特别适合用作汽车用紧凑型大功率交流发电机，并且“拆卸和更换”现有车辆的改装。 该装置包括具有永磁体的转子，具有绕组的定子和冷却系统。 公开了通过使转子位移最小化并吸收不可接受的转子位移来防止转子磁体与定子发生碰撞的机构。 冷却系统引导冷却剂流与至少一个绕组和磁体热接触，并且包括通过定子芯的至少一个通道。 描述了各种开放和封闭的冷却系统。 通过例如松动缠绕绕组端匝，使用异步气流源和/或引导冷却剂通过定子延伸通过与绕组热接触的导管来促进冷却。

公开(公告)号：US20040178684A1

公开(公告)日：2004-09-16

申请号：US10810614

申请日：2004-03-29

Inventor： Kim Houng Joong ,  Hiroshi Katayama ,  Kohji Maki

IPC: H02K041/00

CPC classification number: H02K41/031 ,  H02K1/145 ,  H02K7/09 ,  H02K2201/03 ,  H02K2213/03

Abstract: To reduce the magnetic flux leakage through the gap between magnetic pole teeth of an armature so as to reduce the magnetic attraction force generated between the armature and a needle, an armature unit is provided with two magnetic poles 1 and 2, on the top of which are magnetic pole teeth 11a, 12b, 21b, and 22a protruding toward the opposing magnetic pole, where the magnetic pole teeth of the magnetic pole 1 are arranged at two heights, upper and lower, and the magnetic pole teeth of the opposing magnetic pole 2 are arranged at two heights, upper and lower, so that the magnetic flux flows upward and downward alternately between the upper and lower magnetic pole teeth. The needle 6 equipped with permanent magnets moves relatively in the gap 8 between the upper and lower magnetic pole surfaces of the armature unit.

Abstract translation: 为了减小通过电枢的磁极齿之间的间隙的磁通量泄漏，以减小电枢和针之间产生的磁吸引力，电枢单元设置有两个磁极1和2，其顶部 是朝向相对的磁极突出的磁极齿11a，12b，21b和22a，其中磁极1的磁极齿被布置在上下两个高度处，并且相对的磁极2的磁极齿 被布置在上下两个高度处，使得磁通量在上磁极齿和下磁极齿之间交替地上下流动。 装配有永磁体的针6相对于衔铁单元的上下磁极面之间的间隙8移动。

公开(公告)号：US20040027332A1

公开(公告)日：2004-02-12

申请号：US10635318

申请日：2003-08-06

Applicant: ENGINEERING MATTERS, INC.

Inventor： David Cope ,  Andrew Wright ,  Neil Tischler

IPC: G09G005/08

CPC classification number: H02K41/031 ,  G05G9/047 ,  G05G2009/04766 ,  H02K1/146 ,  H02K16/00 ,  H02K26/00 ,  H02K2201/03 ,  H02K2201/18

Abstract: A reliable and cost-efficient direct drive force feedback motor is suitable for joystick applications, allowing multiple degrees of output freedom, requiring no coil commutation, and permitting compact packaging. A multiple degree-of-freedom motor consistent with the invention comprises an output shaft, a stator, and a rotor. The stator comprises first and second lamination stacks, each lamination stack having an interior curved surface and a coil wound thereon, the lamination stacks being disposed adjacent the output shaft. The rotor is fixed to the output shaft and movably supported adjacent the stator with an air gap disposed between the rotor and the stator, the rotor including at least one magnet disposed thereon and being movable along the interior curved surface of the lamination stacks in directions defining at least first and second degrees of freedom. Energization of the coil of the first lamination stack establishes a first magnetic field to urge the output shaft to rotate in a first plane, and energization of the coil of the second lamination stack establishes a second magnetic field to urge the output shaft to rotate in a second plane substantially orthogonal to the first plane.

Abstract translation: 一个可靠和具有成本效益的直接驱动力反馈电机适用于操纵杆应用，允许多个输出自由度，不需要线圈换向，并允许紧凑的包装。 符合本发明的多重自由度电动机包括输出轴，定子和转子。 定子包括第一和第二层压叠层，每个层叠叠层具有内部弯曲表面和缠绕在其上的线圈，所述层压叠层邻近输出轴设置。 该转子固定在输出轴上，并且具有设置在转子和定子之间的气隙可移动地支撑在定子附近，该转子包括设置在该转子和该定子之间的至少一个磁体，并且可沿层压叠层的内部弯曲表面沿着限定 至少第一和第二自由度。 第一层压堆叠的线圈的通电建立第一磁场以促使输出轴在第一平面中旋转，并且第二层压叠层的线圈的通电建立第二磁场以促使输出轴在一个 基本上与第一平面正交的第二平面。

公开(公告)号：US06597078B2

公开(公告)日：2003-07-22

申请号：US09774214

申请日：2001-01-30

Applicant: Alan D. Crapo ,  Todd A. Walls ,  Richard E. Hartsfield, Jr.

Inventor： Alan D. Crapo ,  Todd A. Walls ,  Richard E. Hartsfield, Jr.

IPC: H02K108

CPC classification number: H02K29/03 ,  B62D5/0403 ,  H02K1/2733 ,  H02K1/2773 ,  H02K1/278 ,  H02K21/16 ,  H02K2201/03 ,  H02K2201/06

Abstract: An electric power steering system for a vehicle includes a steering wheel and a steering shaft that is connected to the steering wheel. A worm gear is connected to the steering shaft. A worm is threadably engaged to the worm gear. A permanent magnet motor is connected to the worm. The permanent magnet motor includes a stator with twelve slots and a rotor with ten poles. The rotor includes one or more axial rotor sections. If more than one axial rotor section is employed, the axial rotor sections are rotationally offset. The axial rotor sections are rotationally offset by an offset angle that is equal to a cogging angle divided by the number of axial rotor sections. The rotor includes breadloaf, spoke, radial or arc permanent magnets.

公开(公告)号：US5777421A

公开(公告)日：1998-07-07

申请号：US803864

申请日：1997-02-24

Applicant: Richard C. Woodward, Jr.

Inventor： Richard C. Woodward, Jr.

IPC: H02K1/06 ,  H02K1/18 ,  H02K5/04 ,  H02K9/06 ,  H02K9/22 ,  H02K15/02 ,  H02K17/16

CPC classification number: H02K1/06 ,  H02K1/182 ,  H02K15/026 ,  H02K17/16 ,  H02K5/04 ,  H02K9/06 ,  H02K2201/03 ,  H02K9/22

Abstract: The present invention resides in an improved disc-type, electrical machine having enhanced efficiency and effectiveness. The disc-type, electrical machine comprises a housing unit, a stator connected to said housing unit, a shaft rotatably connected to the stator or housing unit with rotation means, a rotor connected to the shaft wherein the stator surface area and the rotor surface area which are juxtaposed to each other are serrated, thus producing increased magnetic flux areas. The larger surface areas improves heat transfer from the unit's interior and lowers the magnetic flux density between the stator and rotor.

Abstract translation: 本发明在于一种改进的盘式电机，其效率和效率都得到提高。 盘式电机包括壳体单元，连接到所述壳体单元的定子，具有旋转装置可转动地连接到定子或壳体单元的轴，连接到轴的转子，其中定子表面积和转子表面积 它们彼此并列是锯齿状的，从而产生增加的磁通面积。 更大的表面积改善了从单元内部的热传递并降低了定子和转子之间的磁通密度。

公开(公告)号：US3110827A

公开(公告)日：1963-11-12

申请号：US4927060

申请日：1960-08-12

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： BAUDRY RENE A

IPC: H02K3/22 ,  H02K3/24 ,  H02K9/00

CPC classification number: H02K3/24 ,  H02K3/22 ,  H02K9/005 ,  H02K2201/03

公开(公告)号：US20240364168A1

公开(公告)日：2024-10-31

申请号：US18682700

申请日：2022-08-05

Applicant: LG INNOTEK CO., LTD.

Inventor： Jin Su PYEON ,  Kwon Cheol SHIN

IPC: H02K3/34 ,  H02K1/14

CPC classification number: H02K3/34 ,  H02K1/146 ,  H02K2201/03

Abstract: The present invention may provide a motor including a shaft, a rotor coupled to the shaft, wherein the rotor includes a rotor core and a plurality of magnets coupled to the rotor core, and a stator disposed to correspond to the rotor, wherein the stator includes a stator core, an insulator coupled to the stator core, and a coil disposed on the insulator. In this case, based on an axial direction, the plurality of magnets are disposed at the same position in a circumferential direction, the stator core includes a yoke and a tooth protruding from the yoke, the tooth includes a first region and a second region formed by dividing an inner surface of the tooth facing the rotor in the axial direction, the first region corresponds to a partial region of the inner surface in which a first notch and a second notch are disposed to be spaced apart from each other in the circumferential direction, the second region corresponds to a partial region of the inner surface in which the first notch and the second notch are not present, and an axial length of the second region is in a range of 17% to 35% of an axial length of the stator core.

公开(公告)号：US12119709B2

公开(公告)日：2024-10-15

申请号：US17754577

申请日：2020-10-21

Applicant: Robert Bosch GmbH

Inventor： Andreas Echle ,  Nejila Parspour

IPC: H02K1/18 ,  H02K5/16 ,  H02K7/14

CPC classification number: H02K1/182 ,  H02K5/161 ,  H02K7/14 ,  H02K2201/03

Abstract: An axial flux machine, in particular a single-sided axial flux motor, for an electrical machining device, includes a machine shaft, in particular a motor shaft, a disc-shaped stator, and a disc-shaped rotor which is arranged adjacent to the stator in the axial direction of the machine shaft. The stator is formed as a winding carrier for at least one stator winding and the rotor, which is connected to the machine shaft in a rotationally fixed manner, can rotationally moved relative to the stator. The axial flux machine further includes a housing for receiving the stator and the rotor. The housing is cylindrical, open on one side and formed with a substantially closed end face, and the housing fixes the stator in such a way that a defined air gap remains between the rotor and the stator. The axial flux machine can be arranged in an electrical processing device.

公开(公告)号：US20240322661A1

公开(公告)日：2024-09-26

申请号：US18732089

申请日：2024-06-03

Applicant: Advanced Magnet Lab, Inc.

Inventor： Rainer Meinke ,  Shashikant Manikonda

IPC: H02K16/02 ,  B22F9/04 ,  B60K7/00 ,  H01F1/057 ,  H01F41/02 ,  H02K1/27 ,  H02K1/278 ,  H02K1/2783 ,  H02K1/2786 ,  H02K1/2792 ,  H02K3/28 ,  H02K3/42 ,  H02K15/03 ,  H02K21/12

CPC classification number: H02K16/025 ,  B60K7/00 ,  H01F1/0576 ,  H01F41/0266 ,  H01F41/0273 ,  H02K1/27 ,  H02K1/278 ,  H02K1/2783 ,  H02K1/2792 ,  H02K3/28 ,  H02K3/42 ,  H02K15/03 ,  H02K16/02 ,  H02K21/12 ,  B22F9/04 ,  H02K1/2786 ,  H02K2201/03

Abstract: A dual-rotor machine comprising a dual rotor support structure rotatably connected to a frame. A stationary stator is disposed between the rotors and is fixed to the frame. An inner rotor and outer rotor, each comprising a permanent magnet Halbach array, are coaxially disposed with the stator and are rotable about the stator. In this configuration, the inner rotor channels its magnetic flux to its outside, while the outer rotor channels its magnetic flux to its inside. The magnetic flux density at the stator for the dual-rotor machine can be as high as 2 Tesla or higher for high-grade neodymium-iron-boron permanent magnet material, and the stored magnetic energy for conversion to mechanical or electrical energy available to the stator may be at least 0.5 KJ/m. The rotor Halbach arrays may comprise monolithic permanent magnets with continuously variable magnetic field direction.

公开(公告)号：US20240283314A1

公开(公告)日：2024-08-22

申请号：US18587811

申请日：2024-02-26

Applicant: John Robert Culleton, III

Inventor： John Robert Culleton, III

IPC: H02K3/24 ,  H02K1/2753 ,  H02K3/28 ,  H02K16/00

CPC classification number: H02K3/24 ,  H02K1/2753 ,  H02K3/28 ,  H02K16/00 ,  H02K2201/03

Abstract: An axial flux electrical machine, such as an electric motor, dynamo, pump, generator, or alternator has a casing with vents or openings enabling cooling or pumped media to flow into and out of the casing when the rotor of the electrical machine rotates. The stator is formed from conductive elements connected at their axial outer regions by interconnecting members. Conductive elements have a gap or space to direct cooling through the winding to the central region. Each conductive element has legs bent in opposing directions relative to the starting plane of the conductor closest to the central axis then the second leg is bent back in the direction of the first. A portion of the windings of the stator are spaced apart to allow media to flow between the windings to the central axis area and then is allowed flow outward between the rotor and the stator.