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：US12088160B2

公开(公告)日：2024-09-10

申请号：US17550341

申请日：2021-12-14

Applicant: Black & Decker Inc.

Inventor： Barak N. Gohn ,  Colin M. Crosby ,  Nicholas J. Lowe ,  James R. Clarke ,  Daniel F. Heck ,  Michael P. Sikora ,  Christian B. Rogerson ,  Ryan F. Schroeder ,  Connor T. Mohan ,  Michael D. Grove

IPC: H02K1/27 ,  H02K1/16 ,  H02K1/276 ,  H02K1/28 ,  H02K3/28 ,  H02K3/46 ,  H02K3/52 ,  H02K5/16 ,  H02K7/14 ,  H02K9/06 ,  H02K11/33 ,  H02K21/12 ,  H02K21/16 ,  B25F5/00 ,  H02K11/215

CPC classification number: H02K21/12 ,  H02K1/16 ,  H02K1/165 ,  H02K1/27 ,  H02K1/276 ,  H02K1/28 ,  H02K3/28 ,  H02K3/46 ,  H02K3/522 ,  H02K5/16 ,  H02K7/145 ,  H02K9/06 ,  H02K11/33 ,  H02K21/16 ,  B25F5/001 ,  H02K11/215 ,  H02K2203/03 ,  H02K2213/03

Abstract: A brushless direct-current (BLDC) motor for a power tool includes a rotor assembly; a stator assembly including a stator having stator teeth forming slots therebetween and stator windings wound around the stator teeth; stator terminals extending substantially parallel to the longitudinal axis from the stator assembly and being substantially aligned with centerlines of the slots of the stator assembly; and a circuit board mounted on the stator terminals adjacent the stator assembly. The circuit board includes conductive traces facilitating a one of a delta or a series connection between the stator windings. An end insulator is provided at an axial end of the stator to electrically insulate the stator from the stator windings, the end insulator including support members to support the stator terminals relative to the stator assembly. The circuit board is mounted and fastened to the support members.

公开(公告)号：US20240293862A1

公开(公告)日：2024-09-05

申请号：US18655677

申请日：2024-05-06

Applicant: Persimmon Technologies Corporation

Inventor： Martin Hosek ,  Sripati Sah ,  Jayaraman Krishnasamy

IPC: B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/02 ,  H02K1/02 ,  H02K1/12 ,  H02K1/22 ,  H02K3/28 ,  H02K21/12 ,  H02K21/16

CPC classification number: B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/0246 ,  H02K1/02 ,  H02K1/12 ,  H02K1/22 ,  H02K3/28 ,  H02K21/12 ,  H02K21/16 ,  C22C2202/02

Abstract: A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.

公开(公告)号：US12003152B2

公开(公告)日：2024-06-04

申请号：US18106429

申请日：2023-02-06

Applicant: Advanced Magnet Lab, Inc.

Inventor： Rainer Meinke ,  Shashikant Manikonda

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

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：US11975386B2

公开(公告)日：2024-05-07

申请号：US17863486

申请日：2022-07-13

Applicant: Persimmon Technologies, Corp.

Inventor： Martin Hosek ,  Sripati Sah ,  Jayaraman Krishnasamy

IPC: H02K3/28 ,  B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/02 ,  H02K1/02 ,  H02K1/12 ,  H02K1/18 ,  H02K1/22 ,  H02K21/12 ,  H02K21/16

CPC classification number: B22F1/16 ,  B22F3/115 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/0246 ,  H02K1/02 ,  H02K1/12 ,  H02K1/22 ,  H02K3/28 ,  H02K21/12 ,  H02K21/16 ,  C22C2202/02

Abstract: A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.

公开(公告)号：US11942842B2

公开(公告)日：2024-03-26

申请号：US17521791

申请日：2021-11-08

Applicant: AeroVironment, Inc.

Inventor： Wally Ewald Rippel ,  Zaher Abdallah Daboussi ,  Bradford M. Hori ,  Scott Garret Berman ,  Bart Dean Hibbs

IPC: H02K3/14 ,  H02K3/30 ,  H02K3/32 ,  H02K3/47 ,  H02K7/14 ,  H02K9/02 ,  H02K9/06 ,  H02K9/14 ,  H02K9/22 ,  H02K16/02 ,  H02K21/12

CPC classification number: H02K3/14 ,  H02K3/30 ,  H02K3/32 ,  H02K3/47 ,  H02K7/14 ,  H02K9/02 ,  H02K9/06 ,  H02K9/14 ,  H02K9/227 ,  H02K16/02 ,  H02K21/12 ,  Y02E10/72 ,  Y10T29/49009

Abstract: In one possible embodiment, a motor winding is provided having a high density multi-conductor wire bundle with a compacted Litz wire bundle. The compacted Litz wire bundle has a serpentine configuration with a central portion having compacted Litz wire and end turns having non-compacted Litz wire.

公开(公告)号：US20240048005A1

公开(公告)日：2024-02-08

申请号：US18484180

申请日：2023-10-10

Applicant: Dana Automotive Systems Group, LLC

Inventor： Joachim DRUANT ,  Steven VANHEE

IPC: H02K1/14 ,  H02K21/12 ,  H02K16/00 ,  H02P25/18

CPC classification number: H02K1/148 ,  H02K21/12 ,  H02K16/00 ,  H02P25/188

Abstract: Methods and systems are provided for operating an electric motor including multiple rotor and stator sections. In one example, a system may include the multiple rotor sections configured to be mechanically coupled and decoupled from each other concurrently with multiple stator sections configured to be electrically coupled and decoupled from each other, within certain regimes of operation of the electric motor.

公开(公告)号：US11863031B2

公开(公告)日：2024-01-02

申请号：US17340748

申请日：2021-06-07

Applicant: DENSO CORPORATION

Inventor： Yuki Takahashi

IPC: H02K3/18 ,  H02K21/12 ,  H02K1/14 ,  H02K1/27 ,  H02K15/02 ,  H02K15/06 ,  H02K15/12 ,  H02K1/2788

CPC classification number: H02K21/12 ,  H02K1/14 ,  H02K1/27 ,  H02K1/2788 ,  H02K3/18 ,  H02K15/022 ,  H02K15/06 ,  H02K15/12 ,  H02K2203/06

Abstract: In a rotating electrical machine, an armature includes a filmy sheet member secured to one of an inner peripheral surface and an outer peripheral surface of a base member to cover one of the inner peripheral surface and the outer peripheral surface of the base member. A sheet member is made of thermoplastic resin as non-magnetic material, and has a field-member side peripheral surface. Each conductive member has at least part embedded in the sheet member in a radial direction of the rotating electrical machine to thereby arrange a base-member side peripheral surface to be radially closer to the base member than the field-generator side peripheral surface of the sheet member is.

公开(公告)号：US11817747B2

公开(公告)日：2023-11-14

申请号：US17587318

申请日：2022-01-28

Applicant: WHYLOT SAS

Inventor： Vasile Mihaila ,  Loic Mayeur ,  Huguette Tiegna ,  Romain Ravaud

IPC: H02K1/04 ,  H02K1/12 ,  H02K1/27 ,  H02K1/28 ,  H02K3/46 ,  H02K5/04 ,  H02K15/03 ,  H02K15/12 ,  H02K16/04 ,  H02K21/12 ,  H02K21/24 ,  H02K41/03 ,  H02K1/2798 ,  H01F7/02 ,  H02K41/02 ,  H02K1/02 ,  H01F41/02 ,  H02K7/00

CPC classification number: H02K1/2798 ,  H01F7/0221 ,  H01F41/0253 ,  H02K1/02 ,  H02K1/04 ,  H02K1/12 ,  H02K1/27 ,  H02K1/28 ,  H02K3/46 ,  H02K5/04 ,  H02K15/03 ,  H02K15/12 ,  H02K16/04 ,  H02K21/12 ,  H02K21/24 ,  H02K41/031 ,  H01F7/021 ,  H02K7/003

Abstract: A three-dimensional magnet structure (6) made up of a plurality of individual magnets (4), the magnet structure (6) having a thickness that forms its smallest dimension, the magnet structure (6) incorporating at least one mesh (5a) exhibiting mesh cells each one delimiting a housing (5) for a respective individual magnet (4), each housing (5) having internal dimensions just large enough to allow an individual magnet (4) to be inserted into it, the mesh cells being made from a fibre-reinforced insulating material, characterized in that a space is left between the housing (5) and the individual magnet (4), which space is filled with a fibre-reinforced resin, the magnet structure (6) comprising a non-conducting composite layer coating the individual magnets (4) and the mesh structure (5a).

公开(公告)号：US20230327514A1

公开(公告)日：2023-10-12

申请号：US18022814

申请日：2021-06-23

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Dirk REIMNITZ

IPC: H02K7/08 ,  H02K21/12

CPC classification number: H02K7/085 ,  H02K21/12

Abstract: An electric machine arrangement with first and second electric machines, each having a stator and a rotor, and a common housing in which the electric machines are arranged axially adjacently. Respective output shafts are rotationally fixed with the rotors of the first and second electric machines. The rotor of the first electric machine, on its side away from the second electric machine, is arranged with radial support of a supporting part of the housing rotatably mounted by a first bearing, and the rotor of the second electrical machine, on its side facing away from the first electric machine, is arranged with radial support of the supporting part in a manner rotatably mounted by a second bearing. One of the rotors is supported radially against the other by a third bearing. The rotor of one of the first or second electric machine is radially supported by a fourth bearing.