公开(公告)号：US20240250569A1

公开(公告)日：2024-07-25

申请号：US18100896

申请日：2023-01-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anthony Michael Coppola ,  Derek Frei Lahr ,  Alireza Fatemi ,  Erik Brandon Golm ,  Alan G. Holmes ,  Michael B. Viola

IPC: H02K1/30 ,  H02K1/04 ,  H02K1/27

CPC classification number: H02K1/30 ,  H02K1/04 ,  H02K1/27 ,  H02K2201/09

Abstract: The present disclosure includes a rotor core assembly for an electric motor. The rotor core assembly includes a plurality of laminations secured together. A center bore is defined by the plurality of laminations. A longitudinal axis of the rotor core assembly extends along an axial center of the center bore. A carbon fiber sleeve surrounds the plurality of laminations. Magnet slots are defined by the plurality of laminations. The magnet slots extend parallel to the longitudinal axis. Magnets are seated in the magnet slots. Reinforcing bores are defined by, and extend across, the plurality of laminations. Reinforcing members are seated in the reinforcing bores.

公开(公告)号：US20240204632A1

公开(公告)日：2024-06-20

申请号：US18498683

申请日：2023-10-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kensuke KOMORI ,  Minoru NAKAMURA ,  Junichi DEGUCHI

IPC: H02K15/02 ,  H02K15/12

CPC classification number: H02K15/02 ,  H02K15/12 ,  H02K2201/09

Abstract: Provided is a method for manufacturing a laminated core capable of reducing the likelihood that the iron loss increases while increasing the space factor of the laminated core. A method for manufacturing a laminated core includes a laminating step of laminating a plurality of thin plates made of a soft magnetic material, an impregnating step of filling a resin into spaces between the plurality of thin plates laminated, and a fixing step of curing the filled resin to fix the plurality of thin plates laminated. In the fixing step, the resin is cured while applying a pressure larger than 0 MPa and equal to or smaller than 1.5 MPa to the plurality of thin plates laminated in a laminating direction of the plurality of thin plates.

公开(公告)号：US12009710B2

公开(公告)日：2024-06-11

申请号：US18550956

申请日：2023-03-03

Applicant: Jiangyin Huaxin Precision Technology Co., Ltd.

Inventor： Bin Guo ,  Yicun Zhou ,  Dawei Liu ,  Laiyuan Zhao

IPC: H02K15/02 ,  H02K15/12

CPC classification number: H02K15/02 ,  H02K15/12 ,  H02K2201/09 ,  H02K2215/00 ,  Y10T29/49009

Abstract: A stamping progressive die for a stator and rotor core of a motor using adhesive dispensing lamination and an adhesive dispensing process. The adhesive dispensing lamination device comprises a stamping station, an adhesive dispensing station for a first adhesive component, an adhesive dispensing station for a second adhesive component and a blanking station which are arranged on the stamping progressive die for the core of the stator and rotor of the motor, wherein an automatic stacking mechanism for core stamping sheets is arranged below the blanking station; one of the adhesive dispensing station for the first adhesive component and the adhesive dispensing station for the second adhesive component is located at an upper position of a material strip, and the other adhesive dispensing station is located at a lower position of the material strip.

公开(公告)号：US20240146159A1

公开(公告)日：2024-05-02

申请号：US18550956

申请日：2023-03-03

Applicant: Jiangyin Huaxin Precision Technology Co., Ltd.

Inventor： Bin GUO ,  Yicun ZHOU ,  Dawei LIU ,  Laiyuan ZHAO

IPC: H02K15/02 ,  H02K15/12

CPC classification number: H02K15/02 ,  H02K15/12 ,  H02K2201/09 ,  H02K2215/00

Abstract: A stamping progressive die for a stator and rotor core of a motor using adhesive dispensing lamination and an adhesive dispensing process. The adhesive dispensing lamination device comprises a stamping station, an adhesive dispensing station for a first adhesive component, an adhesive dispensing station for a second adhesive component and a blanking station which are arranged on the stamping progressive die for the core of the stator and rotor of the motor, wherein an automatic stacking mechanism for core stamping sheets is arranged below the blanking station; one of the adhesive dispensing station for the first adhesive component and the adhesive dispensing station for the second adhesive component is located at an upper position of a material strip, and the other adhesive dispensing station is located at a lower position of the material strip.

公开(公告)号：US20230291287A1

公开(公告)日：2023-09-14

申请号：US18105458

申请日：2023-02-03

Applicant: MITSUI HIGH-TEC, INC.

Inventor： Shinichiro ONO

IPC: H02K15/02

CPC classification number: H02K15/024 ,  H02K2201/09 ,  H02K2215/00

Abstract: There are provided a laminated iron core, a manufacturing method thereof, and a progressive die machine, in which the laminated iron core includes: a plurality of iron core pieces which are laminated; adhesives that bond the iron core pieces adjacent to each other. Each of the iron core pieces includes an annular yoke portion and a plurality of teeth portions projecting radially from the yoke portion. Each of the adhesives is arranged at a different radial distance from a central axis of the iron core pieces and is evenly arranged in a circumferential direction of the iron core pieces on at least one of the entire yoke portion and the entire teeth portions.

公开(公告)号：US20230179037A1

公开(公告)日：2023-06-08

申请号：US17540333

申请日：2021-12-02

Applicant: BorgWarner Inc.

Inventor： Michael Duane Bradfield

IPC: H02K1/20 ,  H02K3/52

CPC classification number: H02K1/20 ,  H02K3/527 ,  H02K2201/09

Abstract: A wound field rotor includes a shaft having an outer surface, an inner surface defining a flow path, and an opening defining a passage extending from the flow path through the outer surface. A plurality of laminations is mounted to the outer surface. The plurality of laminations includes an inner annular surface disposed on the shaft and an outer annular surface defining a plurality of rotor teeth. A plurality of field windings is disposed about corresponding ones of the plurality of rotor teeth. A first portion of the plurality of rotor laminations includes a first passage portion that extends from the inner annular surface radially outwardly and is fluidically connected to the passage, and a second portion of the plurality or rotor laminations adjacent the first portion includes a second passage portion that includes a first end that registers with the first passage portion and a second end.

公开(公告)号：US20190149027A1

公开(公告)日：2019-05-16

申请号：US16154246

申请日：2018-10-08

Applicant: Wieland-Werke AG

Inventor： Gerhard THUMM ,  Volker VOGGESER ,  Michael Wolf ,  Christoph Kästle

IPC: H02K17/16 ,  H02K15/00

CPC classification number: H02K17/165 ,  H02K15/0012 ,  H02K2201/09

Abstract: The invention relates to a squirrel-cage rotor (1) having a shaft (2), a rotor plate stack (3) with rotor bars (4) arranged in the interior thereof, and cage rings (5), wherein at least one part of a cage ring (5) is comprised of a disk stack (7), which is constituted as a layered structure of disks (6) with cut-outs (63), through which the ends of the rotor bars (4) project out of the rotor plate stack (3). Adjoining disks (6) in the disk stack (7) are mutually spaced, and form a gap. The clearance between two adjoining disks (6), resulting from the gap, is constituted by moldings (61) which are arranged on the disks (6) wherein, in the gap (8), at least in the region of the moldings (61), a joint connection (9) is provided. The invention further relates to a method for producing a squirrel-cage rotor.

公开(公告)号：US20180062470A1

公开(公告)日：2018-03-01

申请号：US15556749

申请日：2016-03-10

Applicant: Lappeenrannan teknillinen yliopisto

Inventor： Scott SEMKEN

IPC: H02K1/30

CPC classification number: H02K1/30 ,  H02K2201/09 ,  H02K2213/12

Abstract: A wheel of an electrical machine, includes a hub and a rim connected by spokes, the rim being formed by layered sheet metal elements assembled together. Also disclosed is an electrical machine including the wheel.

公开(公告)号：US20170338703A1

公开(公告)日：2017-11-23

申请号：US15670369

申请日：2017-08-07

Applicant: Whirlpool S.A.

Inventor： Anderson Wolf ,  Andre Lucas Merini ,  Hermann Otto Knupfer ,  Sergio Do Rosario ,  Tarcisio Joao Grott

IPC: H02K1/26 ,  H02K1/06 ,  H02K15/02

CPC classification number: H02K1/265 ,  H02K1/06 ,  H02K15/02 ,  H02K15/024 ,  H02K2201/09 ,  Y10T29/49009 ,  Y10T428/24322

Abstract: Each lamination of the lamination stack comprises at least one assembly of coupling elements, said assembly comprising one insertion clamp, one receiving clamp and at least one receiving window, said coupling elements maintaining the same relative positioning from one another, the insertion clamp and the receiving clamp being defined by respective portions of the lamination axially projecting to the same side of the latter, each insertion clamp of a lamination being fitted, by interference, in the interior of a receiving clamp of an adjacent lamination, and each receiving clamp of a lamination being housed in the receiving window of at least one lamination of the stack.

公开(公告)号：US20170317544A1

公开(公告)日：2017-11-02

申请号：US15522060

申请日：2015-11-02

Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

Inventor： Yasuhiro WATANABE ,  Atsushi SUZUKI

IPC: H02K1/28 ,  H02K1/27

CPC classification number: H02K1/28 ,  H02K1/276 ,  H02K2201/09

Abstract: A rotor for a motor is provided with: a stacked core made of a plurality of steel plates stacked on top of each other in a direction of an axis of a rotating shaft, has a circular pillar shape centered around the axis, and is provided with a plurality of magnet insertion grooves arranged in a circumferential direction of the rotor and penetrating through the circular pillar shape in the direction of the axis; permanent magnets respectively inserted into the magnet insertion grooves; a pair of end plates respectively stacked on opposite ends of the stacked core in the direction of the axis and closing the magnet insertion grooves; and a pressing portion restraining the permanent magnet in the direction of the axis by pressing the permanent magnet in the direction of the axis.