公开(公告)号：US1622204A

公开(公告)日：1927-03-22

申请号：US11158726

申请日：1926-05-25

Applicant: FRANCIS B KEANE

Inventor： HERMANN PAPST

IPC: H02K1/14

CPC classification number: H02K1/141 ,  H02K2201/06

公开(公告)号：US907738A

公开(公告)日：1908-12-29

申请号：US1901073050

申请日：1901-08-23

Applicant: GEN ELECTRIC

Inventor： CHURCHWARD ALEXANDER

CPC classification number: H02K2201/06

公开(公告)号：US498327A

公开(公告)日：1893-05-30

申请号：US498327D

CPC classification number: H02K2201/06

公开(公告)号：US20240204637A1

公开(公告)日：2024-06-20

申请号：US18083436

申请日：2022-12-16

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Shuvajit Das ,  Rakibul Islam ,  Mojtaba Bahrami Kouhshahi ,  Alejandro Pina Ortega

IPC: H02K29/03 ,  B62D5/04 ,  H02K1/276 ,  H02K1/278

CPC classification number: H02K29/03 ,  B62D5/0403 ,  B62D5/046 ,  H02K1/276 ,  H02K1/278 ,  H02K2201/06

Abstract: A system includes an electric motor, a rotor associated with electric motor, a first pole of the rotor, and a first magnet stack associated with the first pole. The first magnet set includes a set of magnets disposed proximate the rotor arranged according to a skewed arrangement and including at least a first magnet having a first length, a second magnet having a second length, and a third magnet having a third length.

公开(公告)号：US20240146163A1

公开(公告)日：2024-05-02

申请号：US18280614

申请日：2022-03-01

Applicant: Siemens Aktiengesellschaft

Inventor： KLAUS BÜTTNER ,  KLAUS KIRCHNER ,  MATTHIAS WARMUTH

IPC: H02K17/16 ,  H02K3/02 ,  H02K15/00 ,  H02K15/02 ,  H02K15/12

CPC classification number: H02K17/166 ,  H02K3/02 ,  H02K15/0012 ,  H02K15/02 ,  H02K15/12 ,  H02K2201/06 ,  H02K2203/09

Abstract: In a method for producing a short-circuit rotor of an asynchronous machine, a laminated core is formed with substantially axial slots and with an axial skew over an axial length of the laminated core, which axial skew is 0.3 to 3 times a slot pitch of the rotor. Conductor bars made of a first conductive material are inserted into the slots such that the conductor bars protrude out of end faces of the laminated core in a skewed manner out of the laminated core to define overhangs. At least the overhangs are coated with a galvanic layer of aluminum, tin or a solderable alloy to provide a lubricating layer. Individual laminations of a second conductive material are axially pressed onto the conductor bars such that the individual laminations short-circuit the conductor bars and form a short-circuit ring, which is composed of multiple individual laminations.

公开(公告)号：US20240128844A1

公开(公告)日：2024-04-18

申请号：US18274561

申请日：2022-01-14

Applicant: Cummins Inc.

Inventor： Md Khurshedul Islam ,  Akm Arafat

IPC: H02K21/16 ,  H02K1/276 ,  H02K3/28

CPC classification number: H02K21/16 ,  H02K1/276 ,  H02K3/28 ,  H02K2201/06

Abstract: Six-phase permanent magnet-type electric machines are disclosed. The electric machine includes a stator and a rotor configured to operate as a first three-phase electric machine and a second three-phase electric machine. The first and second three-phase electric machines are coupled with each other via a fractional slot combination with concentrated windings such that a mechanical separation between the first and second three-phase electric machines is at least 60 mechanical degrees.

公开(公告)号：US11916436B2

公开(公告)日：2024-02-27

申请号：US17375101

申请日：2021-07-14

Applicant: GM Global Technology Operations LLC

Inventor： Alireza Fatemi ,  Mohammad F. Momen ,  Thomas W. Nehl

IPC: H02K1/14 ,  H02K1/16 ,  H02K3/12

CPC classification number: H02K1/165 ,  H02K1/146 ,  H02K3/12 ,  H02K2201/06

Abstract: An electric machine includes a housing, a rotor rotatably mounted to the housing, and a stator mounted to the housing about the rotor. The stator includes a stator body formed from a plurality of laminations. The plurality of laminations include an outer annular surface defining a radius, an inner annular surface spaced from the rotor, and a plurality of radially inwardly extending stator teeth spaced one from another by plurality of gaps. Each of the plurality of gaps extend along the radius and include an opening exposed at the inner annular surface. The opening has a first side portion and a second side portion each extending at an angle relative to the radius.

公开(公告)号：US11664691B2

公开(公告)日：2023-05-30

申请号：US17495172

申请日：2021-10-06

Applicant: LG INNOTEK CO., LTD.

Inventor： Byung Sam Lee ,  Sang Tae Kim ,  Su Won Kim ,  Hyun Kag Park ,  Jong Chan Lee

IPC: H02K1/27 ,  H02K1/276 ,  H02K1/278 ,  H02K5/12 ,  F04C2/10 ,  H02K21/14

CPC classification number: H02K1/276 ,  H02K1/278 ,  H02K5/12 ,  F04C2/102 ,  F04C2240/30 ,  F04C2240/40 ,  H02K21/14 ,  H02K2201/06

Abstract: The present invention provides A motor comprising: a shaft; a rotor including a hole in which the shaft is disposed; and a stator outside the rotor, wherein the rotor comprises a rotor core and a magnet, wherein the rotor core comprises: a main body; a pocket which is formed in the main body and in which the magnet is disposed; first barriers extending from both sides of the pocket; and second barriers formed between an inner circumferential surface of the main body and an outer circumferential surface of the main body, wherein a center (C11) of the second barrier has a certain arrangement angle (θ) in a circumferential direction from a first line (L11) passing through a center (CC) of the main body and a center of a width (W) of the magnet.

公开(公告)号：US20190238014A1

公开(公告)日：2019-08-01

申请号：US16336457

申请日：2017-08-17

Applicant: Robert Bosch GmbH

Inventor： Murat Kol ,  Patrick Heuser

IPC: H02K1/27

CPC classification number: H02K1/276 ,  H02K1/2766 ,  H02K29/03 ,  H02K2201/06 ,  H02K2213/03

Abstract: The invention relates to an electric machine comprising a rotor (10) and a stator (20). The rotor (10) has magnet pockets for receiving permanent magnets (55, 56, 85, 86), and the magnet pockets comprise at least one first pair of magnet pockets (50, 51) and a second pair of magnet pockets (80, 11). The second pair (80, 81) is arranged further inwards than the first pair (50, 51) when viewed in a radial direction with respect to a rotational axis, and the magnet pockets of each pair of magnet pockets (50, 51, 80, 81) are arranged symmetrically to one another with respect to an axis of symmetry (45), wherein the axis of symmetry (45) runs in the radial direction and through the center of the rotor (10). The magnet pockets of each pair of magnet pockets (50, 51, 80, 81) are arranged such that the distance of each magnet pocket to the axis of symmetry (45) increases as the distance to the circumferential edge (110) of the rotor (10) decreases. The magnet pockets of the first pair (50, 51) are arranged at a first mechanical angle to one another, and the magnet pockets of the second pair (80, 81) are arranged at a second mechanical angle to one another. The invention is characterized in that the first angle ranges from ca. 100° to ca. 140°, in particular from ca. 120° to ca. 140°, and the second angle ranges from ca. 65° to ca. 112°, in particular from ca. 88° to ca. 112°.

公开(公告)号：US20190214873A1

公开(公告)日：2019-07-11

申请号：US16236672

申请日：2018-12-31

Applicant: SIEMENS GAMESA RENEWABLE ENERGY A/S

Inventor： ZIAD AZAR

IPC: H02K3/42 ,  H02K1/18 ,  H02K21/14 ,  H02K7/18 ,  F03D9/25

CPC classification number: H02K3/42 ,  F03D9/25 ,  F05B2220/7068 ,  H02K1/185 ,  H02K1/187 ,  H02K7/1838 ,  H02K21/14 ,  H02K2201/06

Abstract: An electric generator longitudinally extends along a longitudinal axis between a drive end and an opposite non-drive end. The electric generator includes a stator having: a stator body including a stator yoke and a plurality of teeth protruding according to a radial direction orthogonal to the longitudinal axis from the stator yoke to respective tooth radial ends, each tooth extending longitudinally between the drive end and the non-drive end, a stator support for radially supporting the stator body, the stator support further providing an axial support to the stator body at the non-drive end, an end plate for axially supporting the stator body at one of the drive end or the non-drive end.