公开(公告)号：US11936276B2

公开(公告)日：2024-03-19

申请号：US17601756

申请日：2020-04-14

申请人： Nidec Corporation

发明人： Keisuke Fukunaga ,  Yohei Miyata ,  Hironobu Kumagai

IPC分类号： H02K11/30 ,  H02K5/22 ,  H02K9/19 ,  H02K9/193 ,  H02K11/225 ,  H02K11/25 ,  H02K11/33 ,  H02K24/00

CPC分类号： H02K5/225 ,  H02K9/19 ,  H02K9/193 ,  H02K11/225 ,  H02K11/25 ,  H02K11/33 ,  H02K24/00

摘要： A motor assembly includes a motor, an electric pump to supply oil to the motor, an inverter assembly connected to the motor, and a first wire harness and a second wire harness. The inverter assembly includes an inverter to convert a high-voltage direct current into an alternating current and supply the alternating current to the motor, and a controller to control the inverter and the electric pump. The first wire harness electrically connects an external power supply and the inverter assembly, and passes a low-voltage power supply line. The low-voltage power supply line is, at a branch point, branched into a controller power supply line to supply drive power to the controller and a pump power supply line to supply drive power to the electric pump.

公开(公告)号：US11859667B2

公开(公告)日：2024-01-02

申请号：US17879465

申请日：2022-08-02

申请人： Ingersoll-Rand Industrial U.S., Inc.

发明人： Lauri Juhani Salmia ,  Petri J. Mäki-Ontto ,  Esa H. M. Vikman

IPC分类号： F16C32/04 ,  H02K3/52 ,  H02K7/09 ,  H02K1/30 ,  G01D5/20 ,  H02K11/225

CPC分类号： F16C32/0474 ,  G01D5/2046 ,  H02K1/30 ,  H02K3/524 ,  H02K7/09 ,  H02K11/225 ,  H02K2203/03 ,  H02K2203/12

摘要： A position sensor includes a plurality of E-shaped ferromagnetic cores arranged to define a circular opening therethrough to receive a shaft. Each E-shaped ferromagnetic core has a plurality of teeth, wherein adjacent E-shaped ferromagnetic cores of the arranged plurality of E-shaped ferromagnetic cores have an overlapping tooth. The position sensor further includes a frame surrounding the arranged plurality of E-shaped ferromagnetic cores, with the E-shaped ferromagnetic cores coupled to the frame.

公开(公告)号：US11840290B2

公开(公告)日：2023-12-12

申请号：US16496653

申请日：2017-04-04

申请人： Mitsubishi Electric Corporation

发明人： Yoshihiko Onishi ,  Toyoaki Udo

IPC分类号： H02K11/33 ,  B62D5/04 ,  H02K11/225 ,  H02K9/22 ,  H02K5/173 ,  H02K7/08 ,  H02K24/00

CPC分类号： B62D5/04 ,  H02K5/1732 ,  H02K7/083 ,  H02K9/227 ,  H02K11/225 ,  H02K11/33 ,  H02K24/00

摘要： In an electric power steering device in which a control unit and a motor are integrated, when the control unit is housed in a case, although a frame, by which the motor and the control unit are compartmentalized, is required, there have been problems in that the case is deformed by a pressure which influences the case when the frame is provided, and a position accuracy of a shaft center of a rotation shaft of the motor is worsened. Therefore, in order to reduce a deformation of the case, a step portion is provided at an inner wall surface of the case and the frame is contacted to the step portion, and moreover, a connecting portion is provided between an outer circumference portion of the frame and an inner circumference portion of the case, whereby a movement of the frame is restrained.

公开(公告)号：US20230393450A1

公开(公告)日：2023-12-07

申请号：US18447282

申请日：2023-08-09

申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： Weicheng WANG

IPC分类号： G03B13/36 ,  H02K11/225 ,  H02K41/035 ,  H04N23/68

CPC分类号： G03B13/36 ,  H02K11/225 ,  H02K41/0354 ,  H04N23/687

摘要： A voice coil motor is provided in the disclosure. The voice coil motor includes a frame, a magnetic member disposed at the frame, a coil assembly received in an inner cavity of the frame, a first resilient member, a planar coil, and a base. The magnetic member is disposed around the coil assembly. The planar coil is disposed on the base. The frame is disposed on the planar coil. The first resilient member includes a first connection ring connected to the coil assembly and a first positioning portion. The coil assembly is connected to the frame via the first positioning portion. The first positioning portion is configured to reset the coil assembly after movement of the coil assembly relative to the frame. A positioning mechanism is disposed between the frame and the base and configured to reset the frame after movement of the frame relative to the base.

公开(公告)号：US20230378852A1

公开(公告)日：2023-11-23

申请号：US18364861

申请日：2023-08-03

申请人： Vitesco Technologies Germany GMBH

发明人： Andy Holland ,  Lennart Leopold ,  Christoph Heukenroth ,  Henrique Ramos Pereira ,  Lucas Schmieder

IPC分类号： H02K11/225 ,  H02K5/15 ,  H02K11/25 ,  H02K11/33

CPC分类号： H02K11/225 ,  H02K5/15 ,  H02K11/25 ,  H02K11/33 ,  B60K1/00

摘要： An integrated axle drive for an at least partially electrically driven motor vehicle, having an electric machine which has a rotor which is mounted so as to be rotatable about a rotor axis, a transmission which is coupled to the electric machine, an inverter which is arranged on the transmission and which is electrically conductively connected to the electric machine, wherein the transmission is arranged between the electric machine and the inverter, a multi-part rotor position sensor, having a sensor target which is arranged and/or formed on the rotor in a rotationally fixed manner and a sensor board which is arranged, with an air gap to the sensor target, on an end shield of the electric machine, wherein the end shield carrying the sensor board is arranged between the transmission and the rotor, and the sensor board is electrically conductively connected to the inverter.

公开(公告)号：US11770053B2

公开(公告)日：2023-09-26

申请号：US17113828

申请日：2020-12-07

申请人： Tymphany Acoustic Technology Limited

发明人： Ruben Minoru Tuemp Millyard ,  George Albert Bullimore

IPC分类号： G01B7/14 ,  G01B7/30 ,  H01F5/00 ,  H02K11/225 ,  H04R9/06 ,  H02K11/33 ,  H02K41/035 ,  G01P3/488 ,  G01P1/02 ,  G01D5/20 ,  G01D5/14

CPC分类号： H02K11/225 ,  G01P1/026 ,  G01P3/488 ,  H02K11/33 ,  H02K41/0354 ,  H04R9/06 ,  G01D5/145 ,  G01D5/20 ,  G01D5/2013

摘要： A method for determining a voice coil position of a voice coil includes providing a magnetic circuit having a magnetic gap and suspending the voice coil in the magnetic gap, applying a driving signal to the voice coil to produce an electromotive force, providing inductive sensors mechanically coupled to the voice coil, measuring inductive sensor signals based on outputs from the inductive sensors, processing the measured inductive sensor signals by determining at least one inductive sensor signal ratio, and determining a representation of the voice coil position based on the at least one inductive sensor signal ratio. A voice coil system, which can be incorporated in a loudspeaker, is configured to carry out the method.

公开(公告)号：US20230223829A1

公开(公告)日：2023-07-13

申请号：US18180474

申请日：2023-03-08

申请人： MINEBEA MITSUMI Inc.

发明人： Mutsumi MATSUURA ,  Takashi NAKAGAWA ,  Hiroshi ABE ,  Shinya SUZUKI

IPC分类号： H02K24/00 ,  H02K11/225

CPC分类号： H02K24/00 ,  H02K11/225

摘要： A stator structure of an embodiment includes a stator core that comprises: a ring-shaped main body; and a plurality of teeth extending in a radial direction of the main body and arranged along a circumferential direction of the main body. The main body comprises a plurality of elongated holes that are formed in an arc shape along the circumferential direction of the main body and that are arranged along the circumferential direction of the main body, and a plurality of holes that are arranged along the circumferential direction of the main body between the teeth and the elongated holes in the radial direction of the main body. At least one of the holes is disposed between beams and the teeth located close to the beams, the beams being provided between the adjacent elongated holes.

公开(公告)号：US20230093152A1

公开(公告)日：2023-03-23

申请号：US17909330

申请日：2021-01-18

申请人： Robert Bosch GmbH

发明人： Andreas Krueger ,  Benjamin Haufe ,  Janos Tamas Csoti ,  Klaus Lerchenmueller ,  Lothar Detels ,  Patrick Budaker ,  Konstantin Haberkorn

IPC分类号： H02K1/28 ,  H02K11/225

摘要： An electrically controllable component assembly and an electronically slip-controllable brake system having such a component assembly. The component assembly has an electric machine including a rotor, a machine shaft connected to a rotor in a torsionally fixed manner, and a signal transducer, revolving with the rotor, of a sensor device for the electronic sensing and evaluation of the angle of rotation of the machine shaft. The signal transducer has first regions and second regions, which are situated in mutual alternation in sequence in the circumferential direction of the signal transducer and differ from one another in their respective electrical conductivity. The signal transducer includes a shaped sheet metal part, which rests in a flush manner against the rotor and is anchored in a torsionally fixed manner to the machine shaft.

公开(公告)号：US20230054067A1

公开(公告)日：2023-02-23

申请号：US17797192

申请日：2021-01-26

申请人： LG INNOTEK CO., LTD

发明人： Dae Gil BYEON ,  Young Dae PARK

IPC分类号： H02K11/225 ,  H02K5/16 ,  H02K7/08 ,  H02K21/28 ,  G01D5/14

摘要： An embodiment may provide a motor including a shaft, a rotor including a rotor core and a coil disposed on the rotor core, a stator disposed outside the rotor, a substrate electrically connected to the coil, and a first housing in which the substrate is disposed and which is coupled to the shaft and the rotor, wherein the substrate includes a sensor and a coil connected to the sensor, the first housing includes a hole, the stator includes a yoke and a magnet disposed on the yoke, the yoke includes a plurality of protrusions, and the protrusions and the hole are disposed to overlap the coil in an axial direction.

公开(公告)号：US20220216770A1

公开(公告)日：2022-07-07

申请号：US17554478

申请日：2021-12-17

申请人： Kohler Co.

发明人： Isaac S. Frampton ,  Adam Larson

IPC分类号： H02K11/225

摘要： An electric machine includes at least a printed circuit board and a magnetically permeable element. The printed circuit board includes a reluctance coil configured to generate a voltage in presence of a magnetic flux. The magnetically permeable element has a first end positioned adjacent to a rotor of the electrical machine and a second end positioned adjacent to the coil of the printed circuit board. In some examples, rotation of the rotor causes a change in the magnetic flux through the magnetically permeable element and generation of the voltage across the reluctance coil.