公开(公告)号：US20240204634A1

公开(公告)日：2024-06-20

申请号：US18286534

申请日：2022-04-13

Applicant: NIPPON STEEL CORPORATION

Inventor： Kazutoshi TAKEDA ,  Shinsuke TAKATANI ,  Ryu HIRAYAMA ,  Minako FUKUCHI ,  Yoshiaki IWASE ,  Makoto NIWA ,  Makoto HIRAKAWA

IPC: H02K15/12 ,  H02K15/02

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

Abstract: This bonded and stacked core manufacturing method is a method for manufacturing a bonded and stacked core by performing press working on a strip-shaped steel sheet with a press working oil applied to one surface or both surfaces thereof, applying an anaerobic adhesive and an instantaneous adhesive to one surface of the strip-shaped steel sheet to obtain a plurality of steel sheet components, and stacking and bonding the steel sheet components, in which a curing accelerating layer is formed by applying an anaerobic adhesive curing accelerator and an instantaneous adhesive curing accelerator to one surface or both surfaces of the strip-shaped steel sheet before the press working oil is applied, and drying the adhesive curing accelerator and the instantaneous adhesive curing accelerator.

公开(公告)号：US11929648B2

公开(公告)日：2024-03-12

申请号：US17255716

申请日：2018-07-27

Applicant: Mitsubishi Electric Corporation

Inventor： Tomoki Masuko ,  Masahiro Nigo

IPC: H02K1/276 ,  F25B31/02 ,  H02K21/16

CPC classification number: H02K1/2766 ,  F25B31/026 ,  H02K21/16 ,  H02K2201/09

Abstract: An electric motor includes: a stator including a first stator core, a second stator core, and a slot in which a stator winding is disposed, and a rotor including a first rotor core facing a first stator core in a radial direction and a second stator core facing the second stator core in the radial direction. The first stator core and the second stator core are laminated in an axial direction. The stator includes a depression formed in a position facing the slot and not touching the stator winding. A volume of the first rotor core is smaller than a volume of the second rotor core.

公开(公告)号：US20240039376A1

公开(公告)日：2024-02-01

申请号：US18357157

申请日：2023-07-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomoyuki MAEDA ,  Shinobu ISHIDA

IPC: H02K15/02

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

Abstract: A method of manufacturing a laminated core in which an adhesive can be easily applied to gaps between laminated electromagnetic steel plates is provided. A method of manufacturing a laminated core according to the present disclosure includes a first step, a second step, and a third step. In the first step, an electromagnetic steel plate laminate is formed by laminating a plurality of electromagnetic steel plates in a lamination direction. In the second step, the electromagnetic steel plate laminate is excited in a direction intersecting the lamination direction. In the third step, an adhesive is applied to gaps between the plurality of electromagnetic steel plates in the electromagnetic steel plate laminate.

公开(公告)号：US20230378825A1

公开(公告)日：2023-11-23

申请号：US18247145

申请日：2021-09-21

Applicant: Siemens Aktiengesellschaft

Inventor： Carsten Schuh ,  Thomas Soller ,  Rolf Vollmer

IPC: H02K1/02 ,  H02K1/04

CPC classification number: H02K1/02 ,  H02K1/04 ,  H02K2201/09

Abstract: Various embodiments of the teachings herein include an electric machine. The machine comprises a stator and/or a rotor with a stack of soft-magnetic laminations. The soft-magnetic laminations are disposed next to one another on flat sides of the laminations. At least one of the flat sides on which two adjacent laminations are close to one another is formed with a sintering skin.

公开(公告)号：US20230369920A1

公开(公告)日：2023-11-16

申请号：US18246946

申请日：2021-09-28

Applicant: Valeo Automotive ePowertrain Systems (Shanghai) Co., Ltd.

Inventor： Huafeng MAO ,  Renlong YING ,  Xuehua ZHANG ,  Wei ZHU ,  Robin BUESCH ,  Andreas ECKERT

IPC: H02K1/06

CPC classification number: H02K1/06 ,  H02K2201/09

Abstract: A motor component, a motor and a motor vehicle are disclosed. The motor component has a body extending along a rotation axis of the motor, the body being formed by a set of laminations, and an axially extending cavity being provided on the body; and wherein at least one elongated lamination-holding component is provided in the body, and the lamination-holding component is inserted into the axially extending cavity and is coupled to the body inside the axially extending cavity.

公开(公告)号：US20230344286A1

公开(公告)日：2023-10-26

申请号：US18302798

申请日：2023-04-19

Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft

Inventor： Daniel KNOBLAUCH

IPC: H02K1/20

CPC classification number: H02K1/20 ,  H02K2201/09

Abstract: A stator of an electric machine includes a stator lamination package including a plurality of stator laminations and a coolant guide arranged between the stator laminations. The stator laminations include radially inward recesses and stator windings are arranged in the stator grooves, directly around which windings a coolant can flow within the stator grooves. The coolant guide includes first lamination blanks axially bordering the coolant guide on opposite sides thereof. The coolant guide includes second lamination blanks arranged between the first lamination blanks. The first and second lamination blanks and the stator laminations radially include recesses. Only the second lamination blanks additionally include radial coolant channels configured to guide coolant radially inward or radially outward. The radially inward recesses of the stator laminations and the lamination blanks are closed in a radially inward direction, and axially adjacent stator laminations and lamination blanks are glued together in a laminar manner.

公开(公告)号：US11784520B2

公开(公告)日：2023-10-10

申请号：US17478200

申请日：2021-09-17

Applicant: SANYO DENKI CO., LTD.

Inventor： Manabu Horiuchi ,  Keisuke Nagata

IPC: H02K1/27 ,  H02K1/276 ,  H02K29/03

CPC classification number: H02K1/2766 ,  H02K29/03 ,  H02K2201/06 ,  H02K2201/09

Abstract: A rotor structure of a synchronous motor includes: a stator; and a rotatable rotor on the inner side of the stator, in which the rotor includes: a rotor core fixed to a rotary shaft; and a permanent magnet on the outer side of the rotor core, the permanent magnet on the outer side of the rotor core includes a main magnet and an auxiliary magnet, the auxiliary magnet is provided in contact with the outer side of the rotor core, and the main magnet is provided in contact with the outer side of the auxiliary magnet.

公开(公告)号：US20230318418A1

公开(公告)日：2023-10-05

申请号：US18188605

申请日：2023-03-23

Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft

Inventor： Peter WURSTER ,  Patrick KNECHT ,  Johannes LANGE ,  Florian BRAUNBECK ,  Tobias ENGELHARDT

IPC: H02K15/12 ,  H02K7/04 ,  H02K15/03 ,  H02K15/16

CPC classification number: H02K15/12 ,  H02K7/04 ,  H02K15/03 ,  H02K15/165 ,  H02K2201/09

Abstract: A method for producing a rotor device, including providing a rotor shaft having at least one sheet metal packet joined to the rotor shaft. The at least one sheet metal packet includes magnetic units. The method includes performing a transfer molding process, in which the magnetic units are fixed in position in relation to the at least one sheet metal packet and at least one balancing disk is joined axially on the rotor shaft on at least one side of the at least one sheet metal packet such that a gap of a defined width is ensured between the at least one balancing disk and the at least one sheet metal packet. The gap is filled with a molding compound used for the transfer molding process. The method includes determining an imbalance of the rotor device and compensating the imbalance by removing material from the at least one balancing disk.

公开(公告)号：US11722023B2

公开(公告)日：2023-08-08

申请号：US17091175

申请日：2020-11-06

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Sang Hwa Do ,  Nyeon Han Hong ,  Kyoung Bum Kim

IPC: H02K1/27 ,  H02K1/276 ,  H02K15/03

CPC classification number: H02K1/276 ,  H02K15/03 ,  H02K2201/09

Abstract: A structure for fixing a permanent magnet in a rotor core. The structure includes a magnet accommodation portion into which a permanent magnet is to be inserted, an internal hole formed in an area adjacent to one end of the magnet accommodation portion, a pressing portion provided between the magnet accommodation portion and the internal hole. The pressing portion forms a convex shape toward the permanent magnet to be in contact with the permanent magnet.

公开(公告)号：US20230198354A1

公开(公告)日：2023-06-22

申请号：US18109891

申请日：2023-02-15

Applicant: Suzhou Fine-Stamping Machinery Technology Co., Ltd

Inventor： Yuan Xiang ,  Xiudong Huang ,  Renyi Yang ,  Hongbo Wang ,  Bo Yang ,  Haodong Shi ,  Bajin Wu

IPC: H02K15/02

CPC classification number: H02K15/02 ,  H02K2201/09

Abstract: Disclosed herein are a production apparatus of a motor laminated core and a method for producing the same, the production apparatus comprises an upper die assembly, a lower die assembly and an adhesive spraying device, the adhesive spraying device comprises an adhesive spraying plate, a first die plate and a second die plate successively from top to bottom, and channels are disposed between the plates, and respective channels communicate with first adhesive spraying openings and second adhesive spraying openings so as to coat an adhesive on a portion of a metal strip used for forming an core sheet, and after the core sheet is formed, a plurality of core sheets are cured and bonded at normal temperature in the production apparatus with the aid of a hydraulic cylinder so as to form a motor laminated core.