公开(公告)号：US20240356414A1

公开(公告)日：2024-10-24

申请号：US18598726

申请日：2024-03-07

申请人： Polestar Performance AB

发明人： Lars STENVALL ,  Per STRANDEMO

IPC分类号： H02K11/042 ,  H02K1/32 ,  H02K7/08

CPC分类号： H02K11/042 ,  H02K1/32 ,  H02K7/083 ,  H02K2203/09

摘要： The present disclosure relates to a rotor (1) for being accommodated by a stator of an electric motor comprising a hollow rotor shaft (2) and an annular rotor core (3) comprising a winding (4), the annular rotor core (3) accommodating the hollow rotor shaft (2). Further, the rotor (1) comprises a power transmitting arrangement (10) comprising a receiving device (11) configured to receive AC power and rectify said AC power to DC power. Further, the rotor (1) comprises coil busbars (20). Furthermore, the receiving device (11) is positioned at an interior of said hollow rotor shaft (2).

公开(公告)号：US12119734B2

公开(公告)日：2024-10-15

申请号：US17764644

申请日：2020-08-21

申请人： Nidec Corporation

发明人： Takaaki Bando ,  Takuya Matsuyama

IPC分类号： H02K9/22 ,  H02K5/173 ,  H02K5/18 ,  H02K5/20 ,  H02K7/08 ,  H02K9/20

CPC分类号： H02K9/225 ,  H02K5/1732 ,  H02K5/18 ,  H02K5/203 ,  H02K7/083 ,  H02K9/20 ,  H02K2205/09

摘要： A motor includes a rotor rotatable about a central axis and a stator including coils. The stator opposes the rotor with a gap interposed therebetween. A housing defines at least a portion of a closed chamber in which a cooling medium is housed. Heat dissipation portions are able to release heat of the cooling medium in the closed chamber to an outside. A pressure adjustment portion is able to adjust a pressure in the closed chamber. At least a portion of the coils and the rotor is housed in the closed chamber.

公开(公告)号：US20240333100A1

公开(公告)日：2024-10-03

申请号：US18622611

申请日：2024-03-29

申请人： NIDEC CORPORATION

发明人： Ryosuke MATSUZAKI ,  Taishi SATODA ,  Sota DOI ,  Jinnosuke IKUSHIMA ,  Daichi SUKEMORI

IPC分类号： H02K9/19 ,  B60K1/00 ,  H02K5/16 ,  H02K7/08 ,  H02K7/116

CPC分类号： H02K9/19 ,  H02K5/161 ,  H02K7/083 ,  H02K7/116 ,  B60K1/00

摘要： A drive device includes a motor, a transmission, a housing, and a flow path. The transmission includes first to third shafts, and first to third bearings supporting the first to third shafts, respectively. The housing includes a side wall covering a gear chamber from one side in an axial direction, and having first to third bearing holding portions for holding the first to third bearings, respectively. The flow path includes a supply flow path portion that supplies a fluid to the inside of the second bearing holding portion, a first flow path portion that connects the inside of the second bearing holding portion and the inside of the first bearing holding portion, and a second flow path portion that connects the inside of the second bearing holding portion and the inside of the third bearing holding portion.

公开(公告)号：US20240317413A1

公开(公告)日：2024-09-26

申请号：US18612116

申请日：2024-03-21

申请人： Rolls-Royce Deutschland Ltd & Co KG

发明人： Andreas REEH ,  Gunar REINICKE ,  Robert BARKER

IPC分类号： B64D27/30 ,  B64D33/08 ,  H02K5/20 ,  H02K7/08 ,  H02K9/06

CPC分类号： B64D27/30 ,  B64D33/08 ,  H02K5/207 ,  H02K7/083 ,  H02K9/06

摘要： An electrical machine for integration into a vehicle frame structure is provided. The vehicle frame structure includes a structural wall that at least partially encloses an inner volume. The electrical machine includes a rotor with a rotor shaft. The rotor shaft is rotatable around a rotational axis, and is connectable to a propulsor for transferring torque to or from a fluid. The electrical machine includes a first bearing unit configured to hold the rotor shaft in a rotatable manner and a second bearing unit configured to hold the rotor shaft in a rotatable manner. The first bearing unit is releasably attachable to a first wall region of the structural wall, and the second bearing unit is releasably attachable to a second wall region of the structural wall. The first wall region and the second wall region are spaced apart with respect to the rotational axis.

公开(公告)号：US20240313611A1

公开(公告)日：2024-09-19

申请号：US18672298

申请日：2024-05-23

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Ian A. DUNCAN ,  Christopher D. JORNLIN ,  Caleb M. SCHOBER

IPC分类号： H02K5/24 ,  B24B23/02 ,  B24B41/00 ,  B24B47/12 ,  B25F5/00 ,  B25F5/02 ,  H02K7/04 ,  H02K7/08 ,  H02K7/14 ,  H02K9/06

CPC分类号： H02K5/24 ,  B24B41/007 ,  B24B47/12 ,  B25F5/006 ,  B25F5/02 ,  H02K7/04 ,  H02K7/083 ,  H02K7/145 ,  H02K9/06 ,  B24B23/02

摘要： A power tool includes a motor housing extending along a first axis, a motor positioned in the motor housing, a handle extending along a second axis perpendicular to the first axis, and a vibration damping assembly positioned between the motor housing and the handle. The vibration damping assembly includes a first coupling portion defined by the motor housing, a second coupling portion defined by the handle, and an elastomeric damper captured between the first coupling portion and the second coupling portion. The first coupling portion includes a first mating surface facing toward the handle, and the second coupling portion includes a second mating surface facing toward the motor housing and positioned opposite the first mating surface. The damper includes a mating surface portion that extends outward in a direction transverse to the second axis, and the mating surface portion is positioned between the first and second mating surfaces.

公开(公告)号：US20240297548A1

公开(公告)日：2024-09-05

申请号：US18578476

申请日：2022-07-12

申请人： Dyson Technology Limited

发明人： Antonio Jose ARROYO CASTILLEJA ,  Thomas Edward HALHEAD ,  Roberto FAVENTI ,  Michael Chung Kau LIU ,  Jamie Lee TYLER ,  Japhet Lee Cordova MORABE ,  Thomas Richard STAFFORD

IPC分类号： H02K5/173 ,  A47L5/24 ,  F16C19/08 ,  H02K3/52 ,  H02K7/08 ,  H02K21/16

CPC分类号： H02K5/1732 ,  A47L5/24 ,  F16C19/08 ,  H02K3/522 ,  H02K7/083 ,  H02K21/16 ,  F16C2380/26 ,  H02K2203/12

摘要： A brushless motor having a stator assembly, a rotor assembly rotatable relative to the stator assembly, and a frame within which the stator assembly and the rotor assembly are housed. The rotor assembly includes a shaft, first and second bearings attached to the shaft, and a permanent magnet attached to the shaft between the first and second bearings. The rotor assembly includes an impeller attached to the shaft, with the first bearing located further away from the impeller than the second bearing. The rotor assembly includes an o-ring mounted between the first bearing and the frame.

公开(公告)号：US12078236B2

公开(公告)日：2024-09-03

申请号：US18341603

申请日：2023-06-26

申请人： Tesla, Inc.

发明人： Benjamin Dellal ,  Scott Michael Graves ,  Luke Ottaway

IPC分类号： H02K7/00 ,  B60K1/00 ,  B60K17/04 ,  F16C25/08 ,  F16H57/04 ,  H02K1/20 ,  H02K5/20 ,  H02K7/04 ,  H02K7/08 ,  H02K7/116 ,  H02K9/193 ,  H02K15/16 ,  B60K1/02 ,  F16H57/02 ,  F16H57/032 ,  F16H57/037 ,  H02K9/19

CPC分类号： F16H57/0409 ,  B60K1/00 ,  B60K17/043 ,  F16C25/083 ,  F16H57/0402 ,  F16H57/0412 ,  F16H57/0423 ,  F16H57/0424 ,  F16H57/0427 ,  F16H57/0436 ,  F16H57/0457 ,  F16H57/046 ,  F16H57/0471 ,  F16H57/0482 ,  F16H57/0483 ,  H02K1/20 ,  H02K5/20 ,  H02K7/003 ,  H02K7/04 ,  H02K7/083 ,  H02K7/116 ,  H02K9/193 ,  H02K15/165 ,  B60K2001/001 ,  B60K1/02 ,  B60K17/04 ,  B60Y2200/91 ,  B60Y2306/03 ,  B60Y2306/05 ,  B60Y2410/1022 ,  F16C2326/06 ,  F16H2057/02034 ,  F16H2057/0325 ,  F16H57/037 ,  H02K7/006 ,  H02K9/19

摘要： An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.

公开(公告)号：US12063002B1

公开(公告)日：2024-08-13

申请号：US18691122

申请日：2023-12-21

申请人： NIKKISO CO., LTD.

发明人： Chihiro Komori

IPC分类号： G05B5/00 ,  F04D13/06 ,  G01D5/20 ,  G01M13/04 ,  H02K7/08 ,  H02K11/225 ,  H02P23/00 ,  H02P23/14

CPC分类号： H02P23/14 ,  F04D13/0606 ,  G01D5/20 ,  G01M13/04 ,  H02K7/083 ,  H02K11/225 ,  H02P23/0022

摘要： The motor bearing wear state estimation device (5, 5A) estimates a wear state of bearings (32, 33) by using a plurality of detection coils (C1 to C8). The device includes a storage (56, 56A) storing a first learning model (M11, M21) and a second learning model (M12, M22), a retrieval unit (550) retrieving each signal, and an estimation unit (551) estimating the wear state by inputting a first difference signal, a second difference signal, and an amplitude signal into the first learning model, and by inputting a thrust difference signal and the amplitude signal into the second learning model. The amplitude signal is a first amplitude signal generated based on each detection signal of first radial detection coils and/or each detection signal of second radial detection coils, or a second amplitude signal generated based on a first combined signal and a second combined signal.

公开(公告)号：US12062950B2

公开(公告)日：2024-08-13

申请号：US18352074

申请日：2023-07-13

申请人： SUMITOMO HEAVY INDUSTRIES, LTD.

发明人： Sebastian Markert ,  Andreas Mueller

IPC分类号： H02K11/215 ,  F16C19/54 ,  F16H57/02 ,  F16H59/14 ,  F16H63/34 ,  H02K5/173 ,  H02K7/08 ,  H02K7/102 ,  H02K7/116 ,  H02K11/33

CPC分类号： H02K11/215 ,  F16C19/54 ,  F16H57/02 ,  F16H59/14 ,  F16H63/345 ,  H02K5/1732 ,  H02K7/083 ,  H02K7/102 ,  H02K7/116 ,  H02K11/33 ,  F16H2057/02034

摘要： Provided is a gear motor including a motor, a speed reducer, a first detector disposition section in which a first rotation detector that detects rotation of a rotor shaft is disposed, a second detector disposition section in which a second rotation detector that detects rotation of an output member of the speed reducer is disposed, and a third detector disposition section in which a torque detector is disposed, in which the gear motor is operable when the first rotation detector is disposed in the first detector disposition section, the second rotation detector is disposed in the second detector disposition section, and the torque detector is disposed in the third detector disposition section, and is operable even when a portion thereof is disposed.

公开(公告)号：US12057756B2

公开(公告)日：2024-08-06

申请号：US17415009

申请日：2019-12-02

申请人： MINEBEA MITSUMI Inc.

发明人： Koichiro Hirabayashi ,  Yukimasa Matsumura ,  Seiya Fujimoto

IPC分类号： H02K5/24 ,  H02K7/08 ,  H02K7/116

CPC分类号： H02K5/24 ,  H02K7/083 ,  H02K7/1166

摘要： A rotating device according to an embodiment includes a motor, an output gear to transmit the rotation of the motor to the external device, and a housing accommodating the motor and the output gear. The motor is held by holding parts formed at the housing via an adhesive having elasticity. The adhesive having elasticity is disposed between surfaces perpendicular to an axial direction in the holding parts of the housing, and a first end part and a second end part-of a frame.