公开(公告)号：US12212187B2

公开(公告)日：2025-01-28

申请号：US16954645

申请日：2018-11-28

Applicant: BSH HAUSGERAETE GMBH

Inventor： Michal Kalavsky

IPC: H02K1/2733 ,  F01P5/12 ,  F04D13/06 ,  H02K1/27 ,  H02K1/278 ,  H02K1/28 ,  H02K5/12 ,  H02K5/167 ,  H02K21/14

Abstract: An electric drive motor has a permanent magnet rotor with a motor shaft on which a permanent magnet carrier is fastened. A first axial end portion of the motor shaft has a seat for an impeller and the permanent magnet carrier carries at least one permanent magnet at a second axial end portion of the motor shaft. The permanent magnet carrier is pot-shaped with a pot base portion, fastened to the second axial end portion and extending radially to the motor shaft, and a circular cylinder wall portion directly adjoining the outer periphery of the pot base portion and coaxially surrounding the motor shaft. The pot base portion and the circular cylinder wall portion have an at least approximately identical or exactly identical wall thickness. There is also described a wet-rotor pump and a household appliance with such an electric drive motor.

公开(公告)号：US12009731B2

公开(公告)日：2024-06-11

申请号：US16894194

申请日：2020-06-05

Applicant: HANWHA POWERSYSTEMS CO., LTD.

Inventor： Jin Seok Hwang ,  Hong Gi Park

IPC: H02K9/06 ,  H02K5/167 ,  H02K5/18 ,  H02K5/20 ,  H02K7/08 ,  H02K9/18

CPC classification number: H02K9/06 ,  H02K5/1675 ,  H02K5/18 ,  H02K5/207 ,  H02K7/085 ,  H02K9/18

Abstract: A rotary device includes a housing; an impeller provided in the housing; a rotor disposed at a rear of the impeller, and configured to rotate; a stator disposed to surround the rotor; a bearing at the rear of the impeller, and configured to relieve friction caused by rotation of the rotor while supporting the rotor when the rotor is rotated; and a fan mounted to an outside of the housing, and configured to introduce external air into an inside of the housing and, after the external air is heated while travelling on a cooling flow path, release the external air to the outside of the housing.

公开(公告)号：US11817759B2

公开(公告)日：2023-11-14

申请号：US17647115

申请日：2022-01-05

Applicant: ABB Schweiz AG

Inventor： Janne Kamppuri ,  Samu Aarnivuo

IPC: H02K5/16 ,  H02K5/167 ,  F16C17/26 ,  H02K7/08

CPC classification number: H02K5/1672 ,  F16C17/26 ,  H02K7/083 ,  F16C2380/26

Abstract: The electric machine includes a shaft, a rotor, a stator, and a frame. The shaft is supported rotatably on the frame with an axially locating sleeve bearing at each axial end of the shaft. The axial play limiting the axial movement of the shaft is greater in one of the two axially locating sleeve bearings compared to the axial play in the other of the two axially locating sleeve bearings. An axial movement of the shaft is limited only by the bearing with the smaller axial play during normal operational circumstances and by both bearings during exceptional events, the bearing with the greater axial play reducing the axial load of the first bearing in such exceptional events.

公开(公告)号：US11552522B2

公开(公告)日：2023-01-10

申请号：US17060747

申请日：2020-10-01

Applicant: MINEBEA MITSUMI Inc.

Inventor： Uwe Schäfer ,  Helmut Schneider ,  Felix Blaser

IPC: H02K5/16 ,  H02K5/167 ,  H02K7/08

Abstract: A rotor for an electric motor, comprising a rotor magnet and a bearing for the rotatable support on a fixed axle, the bearing comprising first and second bearing half-shells, wherein at least the first bearing half-shell is moveably arranged within the rotor body with respect to the second bearing half-shell, and wherein the first bearing half-shell is supported against the rotor body by a resilient element tangentially arranged with respect to the axle. The resilient element, at both its side surfaces facing in an axial direction of the axle, has at least one respective first protrusion extending in the axial direction, and the first bearing half-shell, on a side facing away from its bearing surface, includes at least two axially spaced second protrusions each extending in a radial direction and cooperating with the first protrusions for aligning the resilient element.

公开(公告)号：US20220289016A1

公开(公告)日：2022-09-15

申请号：US17830766

申请日：2022-06-02

Applicant: Autonomous Tractor Corporation

Inventor： Terry Anderson

IPC: B60K7/00 ,  H02K5/167 ,  H02K7/00 ,  F16C17/02

Abstract: A wheel assembly for a vehicle comprises a hollow support cylinder extending along an axis and anchored to a frame of the vehicle, and a wheel disposed about the axis, annularly surrounding the hollow support cylinder. The wheel comprises an inner wall and a tire extending radially outward of the inner wall, and anchored thereto. The wheel assembly further comprises first and second sleeve bearings disposed between and abutting the hollow support cylinder and the inner wall, the first sleeve bearing being situated proximal to the frame along the axis, the second sleeve bearing being situated distal to the frame along the axis, and the wheel being rotatably supported on the hollow support cylinder via the first and second sleeve bearings. The wheel assembly further comprises a first direct drive motor disposed axially between the first and second sleeve bearings. The first direct drive motor comprises a first wound stator anchored to the hollow support structure, and a first permanent magnet rotor anchored to the inner wall, axially aligned with the first wound stator and radially outward of the first wound stator.

公开(公告)号：US11362604B2

公开(公告)日：2022-06-14

申请号：US16852498

申请日：2020-04-19

Applicant: The Regents of the University of Colorado

Inventor： Robert A. Marshall ,  André Lucas Antunes de Sá ,  Austin P. Sousa ,  Alec Viets

IPC: H02P6/16 ,  H02K11/40 ,  H02K11/22 ,  H02K5/167

Abstract: An electric field mill (EFM) incorporates a novel rotor and shaft grounding mechanism providing a low-impedance path to ground via a bearing packed with electrically conductive grease. A removable bearing washer allows for servicing. The EFM includes a data processing scheme built around a peak detection algorithm and moving much of the signal processing to digital processing. A GPS disciplined sampling clock and cellular connectivity allow for use and maintenance of arrays of widely scattered EFMs.

公开(公告)号：US11283326B2

公开(公告)日：2022-03-22

申请号：US16621438

申请日：2018-06-05

Applicant: HANON SYSTEMS BAD HOMBURG GMBH

Inventor： Daniel Schleicher

IPC: H02K7/08 ,  H02K5/167

Abstract: The disclosure relates to an actuator module at least consisting of an electrical machine and an application module. The electrical machine consists of a stator and a rotor, the rotor is slidably mounted directly on the stator, and the stator and the rotor are surrounded with plastic at least in the region of the inner bearing face. The plastic coating of the cylindrical rotor outer face has structures which extend as a spiral continuously over the height of the rotor.

公开(公告)号：US10823225B2

公开(公告)日：2020-11-03

申请号：US16369410

申请日：2019-03-29

Applicant: Delta Electronics, Inc.

Inventor： Cheng-Hsien Yeh ,  Chih-Wei Chan

IPC: F16C27/02 ,  F04D25/06 ,  F04D29/057 ,  H02K5/167 ,  F04D29/053 ,  F01D25/18 ,  F16C17/10 ,  F04D29/051 ,  F04D29/056 ,  H02K1/27 ,  H02K1/17 ,  F04D29/02 ,  F16C32/06

Abstract: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.

公开(公告)号：US20200052535A1

公开(公告)日：2020-02-13

申请号：US16483816

申请日：2018-02-08

Applicant: NIDEC SANKYO CORPORATION

Inventor： Masaki HARADA ,  Hiroki KURATANI

IPC: H02K1/30 ,  H02K5/167

Abstract: A motor may include a rotor comprising a rotating shaft and a bearing component structured to rotatably support. The bearing component may include a sliding surface that the rotor sliding-contacts from a first side in an axial direction. The rotor may include a holding member structured to hold the rotating shaft from an outer circumferential side; a magnet held by the holding member; and a metal component fixed to the rotating shaft and held by the holding member so as to protrude to the outer circumferential side from the rotating shaft.

公开(公告)号：US20200044518A1

公开(公告)日：2020-02-06

申请号：US16051982

申请日：2018-08-01

Applicant: General Electric Company

Inventor： Brandon Wayne Miller ,  Daniel Alan Niergarth ,  Christopher James Kroger ,  Christian Xavier Stevenson

IPC: H02K11/26 ,  B64D41/00 ,  F01D15/10 ,  F16C32/06 ,  F16C41/00 ,  H02K7/18 ,  H02K5/167 ,  H02K7/08

Abstract: In one an exemplary aspect of the present disclosure, an engine includes a drive shaft; an electric machine including a stator assembly and a rotor assembly, the rotor assembly rotatable relative to the stator assembly; and an electrical break, the drive shaft coupled to the rotor assembly through the electrical break.