Cooling Or Fluid Contact Patents (Class 310/52)
  • Patent number: 12249878
    Abstract: An inverter is disposed adjacent to one end of a motor in a rotational axis direction. The inverter includes a plurality of power modules, a smoothing capacitor, busbars that connect the power modules to the smoothing capacitor, and a thin case that accommodates these components. The plurality of power modules are disposed at the periphery of the smoothing capacitor. The smoothing capacitor and each of the power modules are disposed in an inner portion of the thin case and arranged on the same plane orthogonal to the rotational axis direction. The busbars are formed to extend in the circumferential direction. An inner edge portion of each of the busbars has an arc shape or a circular shape.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: March 11, 2025
    Assignees: MAZDA MOTOR CORPORATION, ROHM CO., LTD.
    Inventors: Takayuki Sato, Masashi Hayashiguchi
  • Patent number: 12244212
    Abstract: A coolant supply system for a drive device of an electrically operated vehicle axle of a two-track vehicle with an electric machine. The coolant supply system has an electric machine hydraulic circuit in which a coolant tank, the interior of a cylindrical stator housing and a stator housing sump are integrated, in which the coolant draining from the stator housing collects, which can be returned from there to the coolant tank by at least one return pump. The stator housing sump has a suction point on each of its axially opposite axial sides, from which the coolant can be sucked off by the return pump.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: March 4, 2025
    Assignee: AUDI AG
    Inventors: Andreas Weber, Ivo Greiter, Harald Gloede, Herbert Tschentscher, Frank Röthlingshöfer
  • Patent number: 12237755
    Abstract: A coolant supply system for an electric vehicle axle drive having an electric machine, in the electric machine housing of which a stator interacts with a rotor. The electric machine outputs to at least one vehicle wheel of the vehicle axle via a transmission arrangement. A coolant separator is arranged in the electric machine housing, which divides the interior of the electric machine housing into a radially outer stator chamber, in which the stator with its stator windings is arranged, and into a radially inner rotor chamber, which is separated therefrom in a largely fluid-tight manner and in which the rotor is arranged.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: February 25, 2025
    Assignee: AUDI AG
    Inventor: Ivo Greiter
  • Patent number: 12218570
    Abstract: A rotating electric machine including a rotor, a stator, and a case forming outflow holes through which a refrigerant flows out toward an extra-slot conductor of a stator coil. The outflow holes are arranged above the extra-slot conductor, and when the bending direction of the extra-slot conductor with respect to an intra-slot conductor arranged on the outermost diameter side in a slot in the stator coil on an upper portion of the stator is a coil bending direction, the first outflow hole is arranged on the bending direction side with respect to a vertical line passing through the rotation center axis, and the second outflow hole is arranged on a side opposite to the bending direction with respect to the vertical line, and the arrangement angle of the second outflow hole with reference to the vertical line is larger than the arrangement angle of the first outflow hole with reference to the vertical line.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: February 4, 2025
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Zhi Jing, Satoshi Yamamura, Kenichi Nakayama, Tomohiro Adachi, Shinji Yamazaki, Hiromitsu Okamoto, Yuuki Takahashi
  • Patent number: 12206296
    Abstract: A motor controller includes a housing, a power circuit board, and a control circuit board. The housing includes a first mounting platform, a second mounting platform, and a side wall. There is a height difference between the first mounting platform and the second mounting platform. The first mounting platform is disposed on an upper part of the side wall, and the second mounting platform is disposed on a middle part of the side wall. The second mounting platform is disposed on one side of the first mounting platform. The first mounting platform and the side wall form an upper chamber, and the control circuit board and the power circuit board are disposed in the upper chamber. The control circuit board is closer to the first mounting platform than the power circuit board. The second mounting platform and the side wall form a lower chamber communicating with the upper chamber.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: January 21, 2025
    Assignee: ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD.
    Inventors: Jianhui Li, Gui Zhang, Hairong Sun, Chao Guan, Xiaosan Xu, Yunsheng Chen
  • Patent number: 12206338
    Abstract: An inverter is disposed adjacent to one end of a motor in a rotational axis direction. The inverter includes a plurality of power modules each including a switching element, a smoothing capacitor, busbars that connect the power modules to the smoothing capacitor, and a thin case that accommodates these components. The plurality of power modules are disposed at the periphery of the smoothing capacitor and arranged in the circumferential direction. The busbars are formed to extend in the circumferential direction. An inner edge portion of each of the busbars connected to a terminal of the smoothing capacitor has an arc shape or a circular shape.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: January 21, 2025
    Assignees: MAZDA MOTOR CORPORATION, ROHM CO., LTD.
    Inventors: Takayuki Sato, Masashi Hayashiguchi
  • Patent number: 12199492
    Abstract: A rotor shaft for an electric motor includes an axially extending tubular body having an inner circumferential surface defining a hollow interior thereof with at least a portion of the hollow interior configured to receive a coolant therein. A plurality of circumferentially spaced splines extends radially inwardly from the inner circumferential surface into the portion of the hollow interior configured to receive the coolant therein. Each of the splines is configured to provide a heat exchanging structure for transferring heat from the rotor shaft to the coolant. The splines are one of integrally formed with the tubular body or provided as inserts captured by the tubular body during a flow forming process.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: January 14, 2025
    Assignee: METAL FORMING & COINING, LLC
    Inventors: Timothy John Cripsey, Robert Herston, Nicholas Brockett
  • Patent number: 12184150
    Abstract: A rotary electric machine in which the casing containing the rotor/stator assembly comprises an intermediate closing cover that closes one end of the casing, a roller bearing immersed in oil and seated inside the oil tank of the machine, which has a casing with an outer wall that is spaced apart axially from the intermediate closing cover. The spacing between the outer wall and the intermediate closing cover forms a path for air to flow from a fan or a space to be filled with thermally insulating material.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: December 31, 2024
    Assignee: WEG EQUIPAMENTOS ELÉTRICOS S.A.
    Inventors: Marcelo Verardi, Thiago Schwinden Leal, Douglas Eyng Fritzen, Cassiano Antunes Cezario
  • Patent number: 12170475
    Abstract: According to an aspect of the present disclosure, a rotor assembly includes a rotor core having a through-hole disposed at a central portion thereof along an axial direction of the rotor core, and a rotor shaft that passes through the through-hole and coupled to the rotor core, the rotor shaft includes a shaft body having a hollow portion in an interior thereof, a cooling fluid hole part including a plurality of cooling holes passing through the shaft body to discharge a cooling fluid introduced through the hollow portion to an outside of the shaft body and arranged to be spaced apart from each other along an axial direction of the shaft body, and a support flange protruding radially on an outer surface of the shaft body to restrain axial movement of the rotor core and having a passage communication hole.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: December 17, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Jin Woo Choi
  • Patent number: 12132376
    Abstract: A fluid compressor device includes a housing and a rotating group supported for rotation within the housing about an axis. The device also includes a controller for an e-machine of a turbomachine having a rotating group that is supported for rotation about an axis including a support structure, a first bus bar that is elongate and that extends about the axis, a second bus bar that is elongate and that extends about the axis, the second bus bar stacked on the first bus bar in an axial direction with respect to the axis, and a fastener arrangement that attaches the first bus bar and the second bus bar to the support structure.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: October 29, 2024
    Assignee: GARRETT TRANSPORTATION I INC.
    Inventors: Valeriy Fedorikhin, Andrew Love, Ali Mohammadpour
  • Patent number: 12113404
    Abstract: A motor assembly includes a housing and a plate-shaped first substrate. The housing houses a motor whose axis of rotation extends in the axial direction. Electronic components are mounted on the first substrate. The housing includes a tubular portion and a side wall portion. The tubular portion extends in the axial direction and accommodates the motor. The side wall portion protrudes from a radial outer surface of the tubular portion in a direction including at least the radially outward direction and the circumferential direction, and extends in the axial direction. An accommodation space to accommodate the electronic components is provided between the tubular portion and the side wall portion as viewed from the axial direction.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 8, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Toshiya Okamoto, Yoshiaki Yamashita, Takashi Hattori
  • Patent number: 12103372
    Abstract: In a drive device, a housing includes a motor accommodation portion for accommodating a motor and an inverter accommodation portion for accommodating an inverter unit, the motor accommodation portion includes a tubular portion of a tubular shape extending in a first direction, the inverter accommodation portion includes a peripheral wall portion surrounding the inverter accommodation portion when viewed from a second direction and a plate portion extending from the tubular portion along one side in a direction perpendicular to the first direction and intersecting the second direction and continuous with the peripheral wall portion, and at least one of the pump and the oil cooler is fixed to the plate portion.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: October 1, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Yuki Ishikawa, Hitoshi Kuroyanagi
  • Patent number: 12088152
    Abstract: Modular cooling assemblies are provided for simultaneously cooling both a power module and a vehicle motor. Each cooling assembly may include a first cooling structure defining at least one major surface in thermal communication with the vehicle motor. A second cooling structure may be provided, defining at least one major surface in thermal communication with a power module. An interlayer structure may be provided, configured to couple the first cooling structure to the second cooling structure. The first cooling structure, the second cooling structure, and the interlayer structure are positioned in a stacked arrangement and configured to provide a flow of coolant fluid from a fluid inlet defined in first cooling structure, through the interlayer structure, and to at least one heat sink feature of the second cooling structure. The coolant fluid is then directed through a fluid outlet defined in the second cooling structure.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: September 10, 2024
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Feng Zhou, Ercan Mehmet Dede
  • Patent number: 12062970
    Abstract: An electric motor includes a shaft supported rotatably around a rotation axis, a rotor located radially outward from the shaft and rotatable integrally with the shaft, and a stator radially opposing the rotor. At least one of the rotor or the stator includes a ventilation path that is a through hole. The ventilation path has a branched shape. A total length of inner circumferential surface lengths of branched ventilation paths in a cross section perpendicular to a penetration direction of the ventilation path is longer than an inner circumferential surface length of an unbranched ventilation path in the cross section perpendicular to the penetration direction.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: August 13, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naoki Hayami, Tetsuya Sakurada
  • Patent number: 12034360
    Abstract: A brushless motor with an internal integrated heat dissipation module thereof is provided. The brushless motor includes a stator including at least one recess to receive a corresponding heat dissipation module therein, and an outer rotor, the heat dissipation module sliding in the corresponding recess to contract to the bottom of the recess; an ejection element arranged in the recess for pushing the heat dissipation module outwards from the recess; two to four temperature sensors integrated in the heat dissipation module; the outer rotor including an annular pressing plate formed at a top thereof to bind and compress a wire harness at the end of a coil winding; an interior cavity inside the stator providing an annular baffle for dividing the cavity into inner and outer parts, and sealing the internal cavity, thereby air only flowing, through the external part near the outer side of the annular baffle.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: July 9, 2024
    Inventors: Qicai Wu, Jichang Gan, Min Wu, Huaqiu Huang
  • Patent number: 12027953
    Abstract: A superconducting rotating machine includes a stator that includes a cylindrical stator iron core and a stator winding that is toroidally wound around the stator iron core and formed of a superconducting material, and generates a rotating magnetic field, an inner rotor rotatably held at an inner circumferential side of the stator, and an outer rotor rotatably held at an outer circumferential side of the stator. The inner and outer rotors each include at least one rotor winding selected from a superconducting squirrel cage winding including a single or a plurality of rotor bars and end rings that are formed of a superconducting material, and a normal conducting squirrel cage winding including a single or a plurality of rotor bars and end rings that are formed of a normal conducting material, and a rotor iron core including a plurality of slots that accommodate respective rotor bars of the rotor winding.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: July 2, 2024
    Assignee: KYOTO UNIVERSITY
    Inventor: Taketsune Nakamura
  • Patent number: 11962189
    Abstract: A stator (1a, 1 b) for an electric machine. The stator (1a, 1b) is fixedly mounted relative to a rotational axis (Rot). The stator (1a, 1b) comprises a stator yoke (2) that extends in the axial (A) and radial (R) directions. Stator teeth (3), facing toward the rotational axis (Rot), are arranged in a ring shape on the stator yoke (2). The teeth are uniformly spaced apart from one another so that a stator groove (14) is formed therebetween. The stator (1a, 1b) is divided into a first stator section (5) and a second stator section (6). First and second outer walls (9, 10) are provided on the stator yoke (2) and serve to axially support the stator yoke (2). A cooling manifold disk (11) is integrated between the first stator section (5) and the second stator section (6). An electric machine with a stator of that type is also disclosed.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 16, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Rayk Gersten, David Wörzler, Stefan Spühler, Martin Jelinewski, Johannes Glückler, Timo Hele, Kai Bornträger
  • Patent number: 11956900
    Abstract: An object of the present invention is to improve the component mounting efficiency. An electronic control unit of the present invention includes: a power board 23 that includes a first insertion hole portion R1A having a plurality of holes 23Aa-2U, 23Aa-2V, and 23Aa-2W through which a coil wire of a first system is inserted and a second insertion hole portion R2A having a plurality of holes 23Aa-2U, 23Aa-2V, and 23Aa-2W through which a coil wire of a second system is inserted; a control board 25 provided on an upper part of the power board 23; and a board-to-board connector 105 that electrically connects the power board 23 and the control board 25. The first insertion hole portion R1A and the second insertion hole portion R2A are collectively arranged on the same side of the power board 23.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: April 9, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Tomohiro Fukuda, Yoshiaki Mizuhashi
  • Patent number: 11923753
    Abstract: An electric motor includes a housing, a stator assembly disposed in the housing, a rotor assembly rotatably disposed in the stator assembly, and an impeller configured to be rotated by the rotor assembly and to generate a flow of air. The stator assembly defines an inner flow path configured to guide a part of the air to pass through an inside of the stator assembly. The housing defines a bypass flow path at an outside of the stator assembly, where the bypass flow path is configured to guide another part of the air to bypass the stator assembly.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: March 5, 2024
    Assignee: LG Electronics Inc.
    Inventors: Taeyong Jung, Jeongho Lee, Joongkeun Choi, Seongho Cho
  • Patent number: 11923739
    Abstract: An electric motor includes an end turn ring and a cooling structure that is in a thermally conductive relationship with the end turn ring.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: March 5, 2024
    Assignee: APPLE INC.
    Inventors: Dillon J. Thomasson, Kan Zhou, Rui Guan, Yateendra B. Deshpande, William M. Price
  • Patent number: 11884409
    Abstract: Aircraft electric motors include a motor unit having a rotor and a stator. The stator includes a plurality of windings and cooling channels arranged to provide cooling thereto. A drive unit is configured to drive operation of the motor unit. A cooling system includes a working fluid arranged within a cooling fluid flow path, wherein the cooling fluid flow path includes a liquid cooling path configured to direct flow of the working fluid through, at least, the cooling channels of the motor unit and a vapor cooling path configured to direct flow of the working fluid through the drive unit and a separator arranged upstream of each of the liquid cooling path and the vapor cooling path and configured to direct a liquid portion of the working fluid into the liquid cooling path and configured to direct a vapor portion of the working fluid into the vapor cooling path.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: January 30, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Abbas A Alahyari, Kimberly Rae Saviers, Joseph Turney, Jagadeesh Kumar Tangudu
  • Patent number: 11885229
    Abstract: The present disclosure pertains to electric machines such as electric propulsion systems for aircraft that integrated cooling systems, and methods of cooling such an electric machine. Exemplary electric machines include an electric motor that has a stator, a rotor, and a drive shaft operably coupled to the rotor. Exemplary electric machines further include a motor cooling conduit that defines a pathway for conveying a cooling fluid through or around at least a portion of the electric motor, a casing assembly that circumferentially surrounds at least a portion of the electric motor, a casing assembly conduit integrally formed within at least a portion of the casing assembly which defines a pathway for conveying the cooling fluid through the at least a portion of the casing assembly, and a pump or compressor operably coupled to the drive shaft and configured to circulate the cooling fluid through the motor cooling conduit and the casing assembly conduit.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: January 30, 2024
    Assignee: General Electric Company
    Inventors: William Dwight Gerstler, Florian Stefan Hoefler, Mark Aaron Chan Chan
  • Patent number: 11799363
    Abstract: A slotless electric motor provides a phase change material that may communicate thermally through the sides of coils directly attached to the outer circumference of the central stator. A control system modeling the motor allows effective operation for short durations.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: October 24, 2023
    Assignee: Hinetics LLC
    Inventors: Kiruba S. Haran, Xuan Yi, Yangxue Yu
  • Patent number: 11770042
    Abstract: A hybrid drive assembly is provided having a hybrid drive housing with an electric motor and a disconnect clutch therein. A transmission is connected to the hybrid drive housing and a torque converter is provided between the electric motor and the transmission. A baffle extends radially between the torque converter and the hybrid drive housing. The baffle includes a ring-shaped body that is affixed to the hybrid drive housing and extends completely around a transmission side periphery of the hybrid drive housing. A fluid pathway is located on or in the baffle, and orifices extend from the fluid pathway toward the electric motor. A fluid inlet port is connected to the fluid pathway, and a fluid connection is provided from a pressurized fluid source to the fluid inlet port. This allows fluid circulated by a pump within the transmission, to be sprayed on the electric motor for cooling.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: September 26, 2023
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: John Ramsey
  • Patent number: 11756709
    Abstract: An oxide superconducting wire includes a superconductor laminate including an oxide superconducting layer on at least one surface of a base material, and a plating layer which is included in a stabilizing layer of the superconductor laminate and formed by plating. A surface roughness Ra of the plating layer is 1.0 ?m or more and 2.0 ?m or less. An entire average crystal grain size of the plating layer is 0.86 ?m or more and 3.05 ?m or less.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: September 12, 2023
    Assignee: Fujikura Ltd.
    Inventor: Naonori Nakamura
  • Patent number: 11705770
    Abstract: A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core defining a plurality of slots and windings arranged within the slots. The thermistor is disposed within a first of the slots between first and second axial ends of the core and is configured to measure a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: July 18, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Akash Changarankumarath Pradeepkumar, Singar Rathnam
  • Patent number: 11689074
    Abstract: An adhesive-reinforced rotor for a rotary electric machine includes rotor lamination layers (“rotor lams”) having axial inner surfaces collectively defining rotor openings through the rotor lams. The rotor also includes reinforcement blocks disposed within a respective one of the rotor openings. A polymer primer/adhesive layer of the rotor having a bond line thickness of less than 1 mm is disposed between the one or more reinforcement blocks and the axial inner surfaces of the rotor lams. The reinforcement blocks and the primer/adhesive layer each have a tensile strength of at least 50 MPa. A modulus of elasticity of the reinforcement blocks is at least three times greater than that of the materials of the polymer primer/adhesive layer. A method of constructing an adhesive-reinforced rotor is also described herein.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: June 27, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Anthony M. Coppola, Kestutis A. Sonta, Alireza Fatemi, Gayatri V. Dadheech, Yew Sum Leong, Xiaosong Huang
  • Patent number: 11686214
    Abstract: A turbomachine system includes a turbomachine provided with a turbomachine rotor. The turbomachine rotor is comprised of a turbomachine shaft with a first shaft end and a second shaft end. The turbomachine shaft is supported by active magnetic bearings for rotation in a turbomachine casing. The turbomachine system further includes a rotary machine drivingly coupled to the first shaft end, and a first closed cooling circuit adapted to circulate a cooling fluid therein and fluidly coupled to the active magnetic bearings to remove heat therefrom. The closed cooling circuit includes a cooling fluid impeller mounted on the turbomachine shaft for rotation therewith and adapted to circulate the cooling fluid in the closed cooling circuit. The closed cooling circuit further includes a heat exchanger adapted to remove heat from the cooling fluid. A method of operating a turbomachine system is further disclosed.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 27, 2023
    Assignee: Nuovo Pignone Tecnologie SRL
    Inventors: Duccio Fioravanti, Giuseppe Iurisci, Paola Di Festa, Giuseppe Sassanelli
  • Patent number: 11658524
    Abstract: Provided is a rotary electric machine that is able to suppress vibration noise of the rotary electric machine caused by an out-of-plane deformation. The rotary electric machine includes a stator including a frame being an annular member, and a plurality of split cores arranged in an annular shape and fitted to and held by a radially inner portion of the frame, wherein the frame is formed such that an inner diameter of each of both end portions thereof is smaller than an inner diameter of an axial middle portion thereof, and fitting fastening force between the frame and each split core is set to be greater at both the end portions than at the axial middle portion.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: May 23, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Keiichi Konishi, Naoki Ohashi, Ryuichi Kitora, Koichi Shimizu
  • Patent number: 11626776
    Abstract: Various methods and systems are provided for a system for cooling an electric motor that includes a rotor shaft rotatably mounted inside a motor housing, a lamination stack integrally connected to the rotor shaft, an encoder-end balance plate integrally connected to a first end of the lamination stack and a first end of the rotor shaft, an output-end balance plate integrally connected to a second end of the lamination stack and a second end of the rotor shaft, an oil supply coupled to the output-end balance plate and the rotor shaft. A closed-looped coolant pathway is formed between the transmission, the rotor shaft, the encoder-end balance plate, the lamination stack, and the output-end balance plate.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: April 11, 2023
    Assignee: Dana Belgium N.V.
    Inventors: Shawn P.A. Jackson, Steven Vanhee
  • Patent number: 11626224
    Abstract: Various embodiments include a superconducting coil device comprising: a coil winding with at least one turn of a superconducting strip conductor; wherein the strip conductor has a first main face and a second main face. The coil winding includes a turning region wherein the strip conductor is bent such that, in the turning region, the strip conductor has a distinct change of direction in a longitudinal direction and simultaneously changes the orientation of both the first main face and the second main face with respect to a central axis of the coil device.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: April 11, 2023
    Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
    Inventors: Tabea Arndt, Marijn Pieter Oomen
  • Patent number: 11606017
    Abstract: An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: March 14, 2023
    Assignee: General Electric Company
    Inventors: David Allan Torrey, Wei Zhang, Mark Ernest Vermilyea, James William Bray, Siddharth Navinchandra Ashar, Hendrik Pieter Jacobus de Bock, Weijun Yin, Alexander Kagan, Anoop Jassal, Joseph John Zierer, Rammohan Rao Kalluri
  • Patent number: 11605995
    Abstract: A stator is described herein comprising a first longitudinally extending slot having a cavity defined by a first inwardly facing longitudinal surface and a second inwardly facing longitudinal surface; said stator further comprising a spacer provided in said cavity of said first slot, said spacer comprising a first spacer component that comprises a first sheet of material having a first sheet surface facing inwardly into said slot and an opposite sheet surface that is in contact with and extends along the first longitudinally extending inner surface of said slot and wherein said inwardly facing first sheet surface of said first spacer component comprises at least one ridge projection extending along its length L. Methods for assembling such stators are also described.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: March 14, 2023
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Parminder Singh Sangha, Edward Graham Charles Pocock, Michael Dawson
  • Patent number: 11606006
    Abstract: A system for overcooling a drive motor and a method for controlling the same may include a first cooling loop in which a first coolant circulate, the first coolant being in a heat exchange with a power electronics (PE) part and a drive motor cooler mounted in the first cooling line and configured to cool cooling oil supplied to the drive motor fluidically connected to the drive motor cooler; a second cooling loop disposed independently from the first cooling loop, wherein a second coolant circulates in the second cooling loop, the second coolant being in a heat exchange with a battery module and a battery chiller mounted in the second cooling loop; and a switch unit configured to selectively shift a flow path of the second coolant such that the second coolant is in a heat exchange with the drive motor cooler.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: March 14, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Byoung Hoon Choi, Sung Hyun Ahn, Hee Ra Lee, Jong Hyun Kim
  • Patent number: 11552518
    Abstract: The present disclosure relates to armature segments for an armature for an electrical machine. An armature segment may comprise a plurality of coils and an electrically insulating supporting structure providing structural support to the plurality of coils. An armature may comprise a plurality of armature segments. The present disclosure further relates to methods for assembling such armature segments and armature.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: January 10, 2023
    Assignee: General Electric Renovables Espana, S.L.
    Inventors: Andrew Thomas Cross, David Torrey, Michel Schweitzer, Bruno Crepel, Mickael Portets, Roel Schuring
  • Patent number: 11532972
    Abstract: A driving device includes an electric motor, a rotating shaft, a motor housing, a printed circuit board, an electric power converting circuit, a rear frame end working as a heat radiating member, gel working as a heat transfer member, multiple mounted parts and so on. The heat radiating member is located on a side of the printed circuit board and facing a motor-side surface of the printed circuit board, to which multiple switching elements are mounted. The gel is plastically deformed and adhered to the switching elements and the heat radiating member for transferring heat of the switching elements to the heat radiating member. At least one of the mounted parts is mounted to the printed circuit board and located at a position between a through-hole opposing area and one of the switching elements, which is located at a position closest to a rotational angle sensor mounted to the printed circuit board in the through-hole opposing area.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: December 20, 2022
    Assignee: DENSO CORPORATION
    Inventors: Yoshimichi Hara, Hiroyasu Sugiura
  • Patent number: 11502590
    Abstract: A radial-gap type superconducting synchronous machine 1 is prepared which includes a rotor 20 having, on its peripheral side, a convex magnetic pole 21 which includes, at its distal end part, bulk superconductors 30. When viewed in the direction of the rotational axis C1 of the rotor 20, the magnetic pole center side of the bulk superconductors 30 is disposed nearer to a stator 10 than the magnetic pole end side of the bulk superconductors 30. A ferromagnet 28 is disposed on the rotational axis C1 side of the bulk superconductors 30. A magnetizing apparatus 100 is disposed outside the bulk superconductors 30 in the radial direction of the rotor 20. Magnetization of the bulk superconductors 30 is performed by directing magnetic flux lines from the magnetizing apparatus 100 toward the bulk superconductors 30.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: November 15, 2022
    Assignee: National University Corporation Tokyo University Of Marine Science And Technology
    Inventors: Mitsuru Izumi, Motohiro Miki
  • Patent number: 11502579
    Abstract: A motor unit includes a motor including a rotor, a stator radially outside of the rotor; a housing for housing the motor; an oil passage for circulating the oil in the housing space; and a gear portion connected to a shaft of the rotor. The housing includes a motor housing portion defining a motor chamber in an interior, a gear housing portion defining a gear chamber in an interior, and a partition dividing the gear chamber and the motor chamber. The oil passage includes a flow passage arranged in an interior of the housing, and an oil feeding structure on an upper side of the motor to feed the oil to at least one of a stator core or coil ends. The flow passage includes a portion extending along an axial direction to feed the oil to the oil feeding structure. The partition includes the portion of the flow passage.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: November 15, 2022
    Assignee: NIDEC CORPORATION
    Inventor: Shuhei Nakamatsu
  • Patent number: 11491322
    Abstract: A catheter pump system is disclosed. The catheter pump system can include a shaft assembly and an impeller coupled with a distal portion of the shaft assembly. The catheter pump system can include a motor assembly, the motor assembly comprising a chamber and a shaft-driving portion disposed in the chamber. The shaft-driving portion can be configured to impart rotation to the impeller through the shaft assembly. The chamber can be filled with a gas that at least partially surrounds the shaft-driving portion. A fluid pathway can convey fluid proximally during operation of the catheter pump system. A bypass pathway can be in fluid communication with the fluid pathway, the bypass pathway configured to direct at least a portion of the fluid to bypass the chamber.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: November 8, 2022
    Assignee: TC1 LLC
    Inventors: Paul F. Muller, Keif M. Fitzgerald, Michael R. Butler, Todd Jenkins
  • Patent number: 11486378
    Abstract: An electric compressor includes a housing, an inverter, an inverter case, a case bottom wall, and a case peripheral wall. The inverter case has a seal peripheral wall. The seal peripheral wall has a cylindrical shape and extends from the case bottom wall in a direction opposite to a direction in which the case peripheral wall extends. The seal peripheral wall surrounds a part of an outer peripheral surface of the housing. A seal member having an annular shape seals a gap between an inner peripheral surface of the seal peripheral wall and the outer peripheral surface of the housing.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: November 1, 2022
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takeshi Okochi, Junya Yano, Yusuke Kinoshita, Shumpei Yamakage
  • Patent number: 11476733
    Abstract: A rotary electric machine for use with coolant includes a stator and rotor assembly. The rotor assembly includes a rotor, rotor shaft, and first and second end rings. The rotor has inner and outer diameter surfaces and an embedded set of rotor magnets proximate the outer diameter surface. The shaft is connected to the rotor and defines a main coolant passage along an axis of rotation. Radial shaft coolant passages are in fluid communication with the main coolant passage. The end rings are positioned at opposing distal ends of the rotor. The shaft coolant passages direct the coolant into the rotor and/or the end rings such that the coolant flows axially through rotor cavities of the rotor and cools the rotor magnets via forced convection.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: October 18, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Alireza Fatemi, Derek F. Lahr, Erik B. Golm, Xiaofeng Yang
  • Patent number: 11469644
    Abstract: A multipart rotor shaft for an electric machine comprises a first shaft journal with a first end flange and a first axial passage bore, a second shaft journal with a second end flange. The rotor shaft also includes a hollow carrier for a laminated rotor core, a line element for conducting a cooling medium, and a separating element which divides a cavity between the carrier and the line element into a first partial cavity and a second partial cavity.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: October 11, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventor: Holger Fröhlich
  • Patent number: 11462958
    Abstract: An electric motor cooling system is provided that utilizes stator-integrated axial coolant channels and a coolant manifold centrally located within the stator to efficiently remove motor assembly heat. The coolant manifold includes a middle member that allows coolant to enter the axial coolant channels via transition laminations, where the transition laminations include coolant distribution channels that direct the flow of coolant entering into the manifold into the stator-integrated axial coolant channels.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: October 4, 2022
    Assignee: Atieva, Inc.
    Inventors: Emad Dlala, Jeremy Mayer, Barnaby James Gerard Lewis, Mohammad Mahmoudi
  • Patent number: 11462970
    Abstract: The present invention provides a cooling mechanism between a linear motor rotor and a platform coupled thereto, characterized essentially in that a cooling portion is provided between the rotor and the platform, and further in that heat transfer is blocked between the cooling portion and the platform, thereby preventing heat received by the cooling portion during heat dissipation from being transferred to the platform, so as to ensure the precision of the platform.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 4, 2022
    Assignee: HIWIN MIKROSYSTEM CORP.
    Inventors: Min-Chang Huang, Cheng-Te Chi, Chao-Chin Teng
  • Patent number: 11444513
    Abstract: An electric motor including a rotor, a stator, a motor housing having a controller can, and a controller having an electronic component disposed within the controller can. The controller can includes an insert comprising thermally conductive metal for exchanging heat with an external heat sink space.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: September 13, 2022
    Assignee: Nidec Motor Corporation
    Inventors: Steven R. Palmer, Richard L. Eason
  • Patent number: 11424669
    Abstract: A rotor (1) for an electric machine (21) with a central rotor axis (A) is specified. The rotor comprises—at least one superconducting coil element (3) with a local winding axis (a), and—at least one winding carrier (5) into which the coil element (3) is embedded, —wherein a cohesive connection is formed between the winding carrier (5) and the coil element (3), —wherein the cohesive connection is provided on a connecting surface (11c) which forms only a first partial region of the entire contact surface (11a, 11b, 11c) between coil element (3) and winding carrier (5). Also specified are a machine with a rotor (1) of said type and a production method for a rotor (1) of said type.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 23, 2022
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Christian Weidermann, Johannes Richter
  • Patent number: 11413623
    Abstract: A paper shredder motor cooling assembly having a paper shredder motor coupled to a fan shaft, an enclosure surrounding the paper shredder motor and having selected input and selected output vents to control airflow to the paper shredder motor, a fan coupled to the fan shaft, communicating with the selected input vents or the selected output vents; when the paper shredder motor is operating, the rotor shaft turns the fan to generate a differential air pressure between the selected input vents and the selected output vents, removing heat from the motor. A duty cycle of greater than 15 minutes is obtained. The fan can be coupled to the motor by speed increasing gearing, attached to the cutter blade assembly, such that the fan turns faster than the motor. The fan also can be attached to the motor shaft. An input fan and an output fan can be used.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: August 16, 2022
    Assignee: Aurora Office Equipment Co., Ltd. Shanghai
    Inventors: Kiapin Li, Zhankai Yang, Yung Kang Tso, Bin Zhang
  • Patent number: 11418080
    Abstract: A rotary electric machine includes a rotor having a rotor core, an end plate disposed on a rotor core end surface, and a stator including a stator core disposed at a gap from the rotor, and a coil provided to the stator core. The stator core includes a stator yoke portion having a substantially annular shape, stator teeth portions provided along a circumferential direction and protruding radially from the stator yoke portion, and slot portions formed between adjacent stator teeth portions. The coil is inserted into each slot portion of the stator core and includes a coil end portion protruding in an axial direction from a stator core end surface. A refrigerant is discharged radially outward of the rotor. A refrigerant guide unit for guiding the refrigerant discharged radially outward in a protruding direction of the coil end portion is disposed on the stator core end surface.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: August 16, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Takahiro Tsutsui
  • Patent number: 11377137
    Abstract: The device has motor housing side annular engagement portion 40 formed at outer circumferential surface of end surface portion of motor housing 11 which is opposite side to output shaft portion of rotation shaft of electric motor; and metal cover side annular engagement portion 38 formed at opening end 37 of metal cover 12 that covers electronic control unit and engaged with motor housing side annular engagement portion 40. Fixing region is formed by fixing metal cover side annular engagement portion 38 to motor housing side annular engagement portion 40 in a fixing manner without using any fixing screw in a state in which metal cover side annular engagement portion 38 is engaged with motor housing side annular engagement portion 40. Sealing region is formed between fixing region and opening end 37 of the metal cover 12 with liquid sealant 41 applied between fixing region and opening end 37.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: July 5, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Hideyuki Hara, Haruaki Motoda, Kazuhiko Nakano, Katsumasa Hagiwara, Tetsuro Tateyama
  • Patent number: 11381130
    Abstract: An electric motor includes: a housing having a first rotor bearing and a stator support surface; a cantilever stator that includes a lamination stack, a first side of the lamination stack abutting the stator support surface and a second side of the lamination stack abutting a stator endbell that has a second rotor bearing, wherein the cantilever stator is held by way of tie rods attaching the stator endbell to the housing; and a rotor in the cantilever stator, the rotor held by the first and second rotor bearings.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: July 5, 2022
    Assignee: Tesla, Inc.
    Inventors: Edwin M. Pearce, Jr., Jim Robbins, Scott Heines, David F. Nelson, Gary A. Pinkley, Michael Balsamo, Augusto E. Barton