公开(公告)号：US20240322619A1

公开(公告)日：2024-09-26

申请号：US18573550

申请日：2022-07-14

Applicant: DeepDrive GmbH

Inventor： Alexander Rosen ,  Dean Petrovski

IPC: H02K1/16 ,  H02K3/28 ,  H02K3/48 ,  H02K9/22 ,  H02K15/02 ,  H02K15/085 ,  H02K16/02

CPC classification number: H02K1/165 ,  H02K3/28 ,  H02K3/48 ,  H02K9/227 ,  H02K15/024 ,  H02K15/085 ,  H02K16/02 ,  H02K2201/06 ,  H02K2203/09 ,  H02K2213/03

Abstract: The present invention relates to a stator for a radial flux double-rotor machine, in particular for a wheel hub motor. The stator includes a stator core; a winding which is placed in the stator core and is designed to be self-supporting for torque support of the stator, wherein the winding protrudes beyond the stator core at least one axial end; and a support device which is arranged axially offset with respect to the stator core and is designed for form-fitting engagement with the winding at the at least one axial end for torque support.

公开(公告)号：US12051949B2

公开(公告)日：2024-07-30

申请号：US17151823

申请日：2021-01-19

Applicant: MAHLE International GmbH

Inventor： Brett Bowman ,  Brent Haseley

IPC: H02K16/02 ,  H02K1/02 ,  H02K1/278

CPC classification number: H02K16/02 ,  H02K1/02 ,  H02K1/278 ,  H02K2201/06

Abstract: Asymmetric skewed rotors and an electric motor that incorporates said rotors. The rotor being are configured to rotate within a stator positioned to surround a portion of the rotors. The stator and rotors are aligned along a centerline (x). Each rotor includes an asymmetric feature, such that during operation dynamic balance results when the asymmetric feature on each rotor are aligned opposite one another perpendicular to the centerline (x) and static balance results when the asymmetric feature on each rotor are aligned opposite one another parallel to the centerline (x).

公开(公告)号：US12015308B2

公开(公告)日：2024-06-18

申请号：US17690651

申请日：2022-03-09

Applicant: Vitesco Technologies Germany GMBH

Inventor： Ralf Rissmann

IPC: H02K1/27 ,  H02K1/276

CPC classification number: H02K1/276 ,  H02K2201/06

Abstract: A rotor for an electric machine, where the rotor has a plurality of annularly formed laminated core segments, which are arranged in succession in the longitudinal direction of the rotor, and each laminated core segment has at least one pocket with a pole component arranged therein, where the pole components arranged in succession in the longitudinal direction of the rotor form a pole assembly, and the pole assembly has a W-shaped progression in relation to its longitudinal direction.

公开(公告)号：US11888369B2

公开(公告)日：2024-01-30

申请号：US17042704

申请日：2020-03-10

Applicant: BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.

Inventor： Liang Peng ,  Yanhui Li ,  Bin Lan

IPC: H02K1/27 ,  H02K29/03 ,  H02K1/2791 ,  H02K1/30

CPC classification number: H02K29/03 ,  H02K1/2791 ,  H02K1/30 ,  H02K2201/06 ,  H02K2213/03 ,  H02K2213/12

Abstract: A magnetic pole module and a rotor for a permanent magnet generator are provided. The magnetic pole module includes a base plate having a first surface and a second surface arranged opposite to each other, the base plate has a first center line extending in the first direction and a second center line extending in the second direction, the first direction is intersected with the second direction, the first center line is parallel to the central axis of the permanent magnet generator; at least one pair of magnetic steel components is fixed on the base plate, and each pair of magnetic steel components is symmetrically arranged on the first surface with respect to the second center line, each magnetic steel component includes multiple magnetic steels arranged side by side along a side of the first direction from the second center line and arranged at a predetermined angle in the second direction.

公开(公告)号：US20190181740A1

公开(公告)日：2019-06-13

申请号：US16270987

申请日：2019-02-08

Applicant: Moog Inc.

Inventor： David P. Cardamone ,  Carl R. Deirmengian ,  Brian J. Williams

IPC: H02K41/03 ,  H02K15/02 ,  H02K33/12 ,  H02K1/14

CPC classification number: H02K41/031 ,  H02K1/145 ,  H02K15/022 ,  H02K33/12 ,  H02K2201/06 ,  H02K2201/15

Abstract: A linear motor (15) comprising a stator (16) having an opening (18), a mover (19) disposed in the opening and configured and arranged to reciprocate linearly in an axial direction (x-x) relative to the stator, the stator comprising a first pole section (21) and a second pole section (22) stacked in the axial direction and forming a recess (26) between them for receiving annular windings, the first pole section comprising a first laminate (17a) having a first cross-sectional geometry (29) and a second laminate (17b) having a second cross-sectional geometry (30) different from the first cross-sectional geometry, and the first laminate and the second laminate stacked in the axial direction.

公开(公告)号：US20190068014A1

公开(公告)日：2019-02-28

申请号：US16100237

申请日：2018-08-10

Applicant: FANUC CORPORATION

Inventor： Shinobu TAKANO ,  Hisashi MAEDA ,  Takafumi KAJIYA

IPC: H02K1/27 ,  H02K15/03 ,  H02K21/12 ,  H02K3/24 ,  H02K1/28

CPC classification number: H02K1/278 ,  H02K1/28 ,  H02K3/24 ,  H02K5/16 ,  H02K9/19 ,  H02K15/03 ,  H02K21/12 ,  H02K21/16 ,  H02K2201/06

Abstract: A rotor includes: a rotating member; a permanent magnet arranged in a plurality of rows along a circumferential direction of the rotating member and divided into a plurality of parts in a rotational axis direction X of the rotating member; and a cover tube divided into a plurality of parts in the rotational axis direction of the rotating member and covering an outer circumferential surface of the permanent magnet, the cover tube being formed of a fiber-reinforced plastic, wherein the plurality of permanent magnets in each row are arranged in an oblique direction with respect to the rotational axis direction of the rotating member, and the permanent magnets adjacent to the arrangement direction are disposed to be skewed in the circumferential direction, and at least one of the divided cover tubes covers an outer circumferential surface of one of the divided permanent magnets in the circumferential direction of the rotating member.

公开(公告)号：US20190052152A1

公开(公告)日：2019-02-14

申请号：US16059083

申请日：2018-08-09

Applicant: Nidec Corporation

Inventor： Yusuke MAKINO ,  Satoshi KAJIKAWA

IPC: H02K9/06 ,  H02K5/10 ,  H02K5/20 ,  H02K7/08 ,  H02K5/173

CPC classification number: H02K9/06 ,  H01R25/16 ,  H02K1/2773 ,  H02K1/278 ,  H02K1/28 ,  H02K5/10 ,  H02K5/16 ,  H02K5/161 ,  H02K5/1735 ,  H02K5/20 ,  H02K5/225 ,  H02K7/08 ,  H02K7/083 ,  H02K7/085 ,  H02K7/088 ,  H02K15/14 ,  H02K15/165 ,  H02K2201/06

Abstract: A motor includes a shaft, a bearing mechanism rotatably supporting the shaft, a cylindrical rotor main body fixed to the shaft, a rotor fan fixed to the shaft, an armature, and a housing. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in an up and down direction. The housing includes a first opening, a second opening, and a bearing holding portion. A cylindrical wind tunnel portion is outward of the rotor fan in a radial direction. An inner surface of the wind tunnel portion and the rotor fan face each other in the radial direction. An upper end portion of the inner surface of the wind tunnel portion and an outer surface of the bearing holding portion face each other in the radial direction.

公开(公告)号：US20180241263A1

公开(公告)日：2018-08-23

申请号：US15769761

申请日：2016-10-21

Applicant: NIDEC MOTORS & ACTUATORS (GERMANY) GMBH

Inventor： Juergen SCHMID

IPC: H02K1/27

CPC classification number: H02K1/2733 ,  H01F7/0221 ,  H02K1/278 ,  H02K1/2786 ,  H02K29/03 ,  H02K2201/06

Abstract: A ring magnet unit for an electric motor is provided, comprising a circular magnet holder and at least two magnet segments fixed to the magnet holder and arranged in a circumferential direction of the magnet holder, wherein respective one magnet segment has a first surface abutting to a surface of the magnet holder and a second surface which is the opposite surface of the first surface. Both side surfaces of the first surface and the second surface are chamfered in the directions that cross the radial direction of the magnet holder at the same angles. At least one pair of the adjacent two magnet segments comprises one magnet segment whose circumferential length of the first surface is equal to or longer than the circumferential length of the second surface and the other magnet segment whose circumferential length of the first surface is equal to or shorter than the circumferential length of the second surface.

公开(公告)号：US10050510B2

公开(公告)日：2018-08-14

申请号：US15027880

申请日：2014-08-29

Applicant: HITACHI METALS, LTD.

Inventor： Hiromitsu Ohhashi

IPC: H02K49/10 ,  F16H49/00 ,  H02K16/02

CPC classification number: H02K49/102 ,  F16H49/00 ,  H02K16/02 ,  H02K49/106 ,  H02K2201/06

Abstract: Cylindrical outer and inner rotors coaxially supported so as to be rotatable, and a cylindrical stator interposed between the rotors are provided, and rotational torque is transmitted between the outer rotor and the inner rotor by interaction between: a plurality of magnets uniformly arranged on the inner circumference of the outer rotor; a plurality of magnets uniformly arranged on the outer circumference of the inner rotor; and a plurality of magnetic bodies juxtaposed at equal intervals in the circumferential direction of the stator. Rod-shaped magnetic bodies extending in the axial direction of the stator are used, and each magnetic body is placed in skew arrangement with a deviation amount in the circumferential direction corresponding to 1/12 to ¼ of the juxtaposition pitch in the circumferential direction between one axial end and the other axial end. Such arrangement can effectively reduce cogging torque, and realize stable power transmission under small torque fluctuation while ensuring high torque density.

公开(公告)号：US20180216504A1

公开(公告)日：2018-08-02

申请号：US15766816

申请日：2016-10-12

Applicant: HDM S.R.L.

Inventor： Paolo DE MAR

IPC: F01L9/04 ,  F04B27/08 ,  F04B27/00 ,  F04B35/04 ,  H02K41/03

CPC classification number: F01L9/04 ,  F01L2009/0423 ,  F04B5/02 ,  F04B27/005 ,  F04B27/02 ,  F04B27/0895 ,  F04B35/045 ,  H02K1/141 ,  H02K33/12 ,  H02K41/031 ,  H02K2201/06 ,  H02K2213/12

Abstract: An electromagnetic linear motor is described. It comprises a tubular stator (1) having a longitudinal axis (W); and a permanently magnet (7) with poles oriented along the axis and linearly movable along said axis inside the stator (1). The stator (1) comprises at least two columns (A, B) formed by electromagnets (2), each electromagnet (2) comprising a core (U) formed by a central straight segment (4) and two end polar expansions (5) all being oriented towards the—and orthogonally to—said axis (W), The columns are circularly arranged around said the permanent magnet (7), and mutually linearly offset along said axis.