Circulation Patents (Class 310/58)
  • Patent number: 11139718
    Abstract: An electric machine includes a frame and a plurality of electrical components including a rotor assembly and a stator assembly. The electric machine further includes an auxiliary blower mounting arrangement for cooling the electrical components and/or a modular exhaust assembly for noise attenuation, wherein the modular exhaust assembly further has one or more louvers allowing cooling fluid for cooling the electrical components to exit the electric machine.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: October 5, 2021
    Assignee: Siemens Industry, Inc.
    Inventors: Nicholas G. Lang, Keith Kane, Ryan Edward Queen
  • Patent number: 11128201
    Abstract: A stator sleeve assembly for an electric machine includes a first cylindrical housing portion defining an inner radial cavity defined by at least one circumferential wall and an outer radial cavity, and a set of radial passages fluidly connecting the inner radial cavity with the outer radial cavity, and a second cylindrical housing portion defining a third cavity, the second housing portion axially spaced from the first housing portion.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: September 21, 2021
    Assignee: GE Aviation Systems LLC
    Inventors: Pradeep Hemant Sangli, Santosh Kumar Prasad, Todd Eric Rook
  • Patent number: 11122715
    Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: September 14, 2021
    Assignee: General Electric Company
    Inventors: Karthik Bodla, Nathaniel Benedict Hawes, Brian Magann Rush, Weijun Yin, Andrew Thomas Cross
  • Patent number: 11108304
    Abstract: A brushless motor assembly includes a motor body, a circuit board, and a heat sink. The circuit board has a mounting surface and includes a motor control unit and a power switch which are disposed on the mounting surface. The motor control unit is adapted to control an operation of the power switch. The heat sink is disposed between the motor body and the circuit board, wherein the heat sink has a first side portion and a second side portion which are opposite to each other; the first side portion faces the motor body, and the second side portion faces the circuit board and shields the mounting surface of the circuit board. With the aforementioned design, it could effectively protect the electronic components on the circuit board and provide good heat dissipation effect.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: August 31, 2021
    Assignee: MOBILETRON ELECTRONICS CO., LTD.
    Inventor: Wen-Shing Hon
  • Patent number: 11067003
    Abstract: The present disclosure is directed to a gas turbine engine including a housing circumferentially surrounding an electric machine. The electric machine is supported within the housing. The housing defines a cooling passage proximate to the electric machine. The cooling passage circumferentially surrounds the electric machine and is extended at least partially along a lengthwise direction of the electric machine. The cooling passage provides a flow of fluid therethrough.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 20, 2021
    Assignee: General Electric Company
    Inventors: Christian Xavier Stevenson, Nathan Evan McCurdy Gibson, Sean Christopher Binion, Patrick Michael Marrinan
  • Patent number: 11063494
    Abstract: Electrical machine apparatus comprising: a rotor having a longitudinal axis and being arranged to rotate about the longitudinal axis in a first circumferential direction, the rotor defining one or more conduits for receiving fluid therein, the one or more conduits including an inlet and an outlet; and a fluid guide defining a first aperture arranged to direct fluid in a second direction towards the rotor, the second direction having a positive circumferential component in the first circumferential direction.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: July 13, 2021
    Assignee: ROLLS-ROYCE PLC
    Inventor: Rory D. Stieger
  • Patent number: 11060482
    Abstract: The present invention relates to a liquid rocket engine using a booster pump driven by an electric motor, and more particularly, to a liquid rocket engine using a booster pump driven by an electric motor in which a booster pump is installed between a propellant tank and a propellant pump so that a requirement for an inlet pressure of the propellant pump may be met even in a state in which an internal pressure of the propellant tank is reduced, resulting in reduced amount of a propellant and reduced weight of the propellant tank, and the electric motor configured to drive the booster pump may be efficiently cooled through an oxidant, a cooling line, and the like.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: July 13, 2021
    Assignee: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Hyun Duck Kwak, Jin Han Kim, Dae Jin Kim, Chang Ho Choi
  • Patent number: 11063497
    Abstract: A drive device includes a hollow hub rotatable about hub shafts extending parallel to a center axis, a motor housed in the hub and fixed to the hub shafts, and a speed reducer connected to the motor and the hub. The motor includes a rotor including a motor shaft extending parallel to the hub shafts, a stator disposed outside the rotor in a radial direction, and a motor housing holding the stator therein. The drive device includes thermal grease thermally connecting the hub and the motor housing to each other.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: July 13, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Shinji Takemoto, Tomoya Ueda, Kosuke Mizuike
  • Patent number: 11043865
    Abstract: A rotor for an electric machine having a rotor shaft, a winding support coupled to the rotor shaft in rotationally fixed manner, and at least one winding arranged on the winding support or a squirrel cage arranged on the winding support, wherein the rotor includes at least one heat pipe running at an angle to the rotor shaft.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: June 22, 2021
    Assignee: AUDI AG
    Inventor: Korbinian Weber
  • Patent number: 11024921
    Abstract: An insulation system for a vehicle includes a vehicle component that operates at an operating temperature that is higher than an initial temperature, an insulation member thermally coupled to the vehicle component and thermally coupled to an ambient medium, the insulation member including an enclosed chamber, the enclosed chamber including a chamber wall that defines an interior volume, and carbon dioxide positioned within the interior volume of the enclosed chamber, where the chamber wall prevents flow of the carbon dioxide out of the enclosed chamber.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: June 1, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Shailesh N. Joshi, Ercan M. Dede
  • Patent number: 10998796
    Abstract: A structure for cooling a rotating electrical machine includes: an oil pump, a supply oil passage connected to a discharge port of the oil pump, and a first oil passage that is an oil passage located above a stator of the rotating electrical machine in a vertical direction and that has a supplied portion, a discharge hole, and a discharge portion. The supplied portion is connected to the supply oil passage. The discharge hole is formed on a first side in an axial direction, which is one side in the axial direction of the rotating electrical machine with respect to the supplied portion and is configured to discharge oil toward the stator. The discharge portion is formed on the first side with respect to the discharge hole. A second oil passage is formed inside a rotor shaft to which a rotor of the rotating electrical machine is fixed, and a third oil passage connects the discharge portion of the first oil passage and the second oil passage.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: May 4, 2021
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki Ikemoto, Takuya Komatsu, Takefumi Komaki, Hiroshi Kato, Satoshi Miyanaga, Yoshinari Nakagawa, Tomohito Ono, Hiroto Hashimoto, Takashi Matsumoto
  • Patent number: 10965194
    Abstract: A rotor includes: a rotor core; a magnet that is arranged along an axial direction of a central axis of the rotor core; and a heat pipe that is arranged around the central axis of the rotor core, wherein the heat pipe includes: an operation liquid that is provided in an internal space of the heat pipe and that allows heat to move via evaporation and condensation; a heated part that extends so as to be parallel with the central axis, that receives heat from the magnet, and that is heated; and a cooled part that is arranged on one side in a longitudinal direction of the heated part and that is cooled, wherein the cooled part is slanted away from the central axis of the rotor core in a direction from the one side in the longitudinal direction of the heated part toward another side in the longitudinal direction of the heated part.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: March 30, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Takashi Kitahara
  • Patent number: 10954922
    Abstract: A system for cooling a tower of a wind turbine including at least one cooling fluid inlet arranged in a tower wall for receiving a cooling fluid into the tower, a filtration assembly arranged within the tower, and at least one cooling fluid outlet for directing the filtered cooling fluid within the tower. The filtration assembly including a plurality of flow guiding structures that define a plurality of flow paths for providing a plurality of flow direction changes and/or flow velocity changes to the cooling fluid.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 23, 2021
    Assignee: General Electric Company
    Inventors: Edward Wayne Hardwicke, Jr., Alisha Candace Taylor, Samir Armando Salamah
  • Patent number: 10938279
    Abstract: An electrical machine has a stator carrying electrical windings which protrude at opposite ends of the stator to form respective, ring-shaped end windings. The electrical machine further has a rotor having a plurality of magnetic field-producing elements for producing a rotor magnetic field which interacts with a stator magnetic field produced by the windings. The electrical machine further has a coolant bath for holding liquid coolant. The electrical machine further has a heat sink in thermal contact with at least one of the end windings, the bath and the heat sink being configured such that the heat sink is immersed in the coolant held in the bath. The heat sink defines one or more fluid pathways configured such that vapour bubbles, formed when coolant in contact with the heat sink boils, escape by rising through the heat sink.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: March 2, 2021
    Assignee: ROLLS-ROYCE PLC
    Inventors: Rory D. Stieger, Roy S. Bartle
  • Patent number: 10931158
    Abstract: A plurality of magnet holes are arranged in a circumferential direction. Void portions are provided at both ends in the circumferential direction of each magnet hole. Flow holes penetrating in the axial direction are formed, between the magnet holes adjacent in the circumferential direction, on an inner side in a radial direction with respect to the magnet holes. Each core has: first groove portions via which the void portions and the flow holes communicate with each other; and second groove portions via which the void portions and the outer circumferences of the cores communicate with each other and which serve as discharge ports. The end plates have: first holes through which the flow holes are exposed and which serve as intake ports; and tab portions which are located on downstream sides in a rotation direction of the first holes and which assist air intake.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: February 23, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuhiro Shono, Shinichi Ito, Yuki Tamura, Kanji Shinkawa, Mizuho Shimizu
  • Patent number: 10910919
    Abstract: A hollow shaft forms a closed-off cavity and has, axially, at least an evaporator zone and a condenser zone. At least the condenser zone has a microscale structure. The evaporator zone and the condenser zone can be connected in a thermally conductive manner to the respective surrounding elements thereof.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: February 2, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Büttner, Klaus Kirchner, Matthias Warmuth
  • Patent number: 10892655
    Abstract: A plurality of magnet holes are arranged in a circumferential direction. Void portions are provided at both ends in the circumferential direction of each magnet hole. Flow holes penetrating in the axial direction are formed, between the magnet holes adjacent in the circumferential direction, on an inner side in a radial direction with respect to the magnet holes. Each core has: first groove portions via which the void portions and the flow holes communicate with each other; and second groove portions via which the void portions and the outer circumferences of the cores communicate with each other and which serve as discharge ports. The end plates have: first holes through which the flow holes are exposed and which serve as intake ports; and tab portions which are located on downstream sides in a rotation direction of the first holes and which assist air intake.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 12, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuhiro Shono, Shinichi Ito, Yuki Tamura, Kanji Shinkawa, Mizuho Shimizu
  • Patent number: 10888036
    Abstract: An electronic assembly includes a PCB coupled to a mounting surface of a cooling jacket circumferentially mounted on a motor and a thermal management assembly (TMA) thermally connected to the PCB. One or more switching semiconductor devices are disposed on a first surface of the PCB proximate to the motor. The TMA includes the cooling jacket, at least one jacket manifold formed through the cooling jacket, a thermal compensation base layer thermally coupled to the cooling jacket and the one or more switching semiconductor devices, and a cooling manifold disposed through the PCB to form a fluid flow path. The at least one jacket manifold has a fluid inlet and a fluid outlet. Two or more electrically insulated posts, each having a cooling channel, are disposed between the at least one jacket manifold and the cooling manifold and form a fluid circuit between the fluid inlet and the fluid outlet.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: January 5, 2021
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Shailesh N. Joshi, Shohei Suenaga
  • Patent number: 10874014
    Abstract: A cover covering a rectifying device includes a cover end wall portion, a cover outer wall portion, and a cover intermediate portion interposed between the cover end wall portion and the cover outer wall portion. The cover end wall portion includes an inner peripheral side intake portion, and the cover intermediate portion includes an outer peripheral side intake portion. The outer peripheral side intake portion includes an axial direction covering portion existing in a position that is closer to a rotary electric machine main body than the cover end wall portion in an axial direction, and a radial direction covering portion that connects the axial direction covering portion to an outer peripheral portion of the cover end wall portion. Intake holes are provided respectively in the inner peripheral side intake portion, the axial direction covering portion, and the radial direction covering portion.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: December 22, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masao Akiyoshi, Yuzuru Kobayashi, Kentaro Honsho
  • Patent number: 10828974
    Abstract: Provided are systems and methods for enclosing an energy source of a material handling vehicle. The systems and methods include an enclosure having a front wall, a rear wall, and an interior compartment, an inlet channel integrally formed with the front wall and in fluid communication with the interior compartment, the air inlet channel defined by an inlet louver and an inlet flange, an outlet channel integrally formed with the rear wall and in fluid communication with the interior compartment, the air outlet channel defined by an outlet louver and an outlet flange, one or more energy source cells positioned within the interior compartment; and a cooling fan in fluid communication with the inlet channel and the interior compartment. The cooling fan operates to draw air through the inlet channel to the interior compartment such that air within the interior compartment is expelled out of the outlet channel.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 10, 2020
    Assignee: The Raymond Corporation
    Inventors: Joseph E. Cragnotti, Greg Stoermer, Lawrence O. Hilligoss
  • Patent number: 10819187
    Abstract: A system and kit for dissipating heat generated by a motor assembly and methods for manufacturing and using same. The motor assembly includes a housing that defines an internal chamber. The internal chamber communicates with an air inlet and an air outlet each being formed in the housing, and can at least partially receive motor inner workings. A pump assembly can be included in the internal chamber for generating an air flow during operation of the motor assembly. The pump assembly can draw air into the internal chamber via the air inlet, generating an air flow within the internal chamber. The air drawn into the internal chamber is applied to the motor inner workings, and the air heated by the motor inner workings is expelled from the internal chamber via the air outlet. Thereby, the air flow advantageously can cool the motor assembly as the air traverses the internal chamber.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 27, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Shimeng Bei, Xumin Wu, Qiang Yu, Jiyuan Ao, Xiaolong Wu
  • Patent number: 10819181
    Abstract: A terminal lead support for use in an integrated drive generator has a body defining an outer end extending to two outer angled surfaces. The outer angled surfaces each extend to curved end portions. The curved end portions connect the outer angled surfaces into inner angled surfaces. The inner angled surfaces each extend into cupped portions formed about a radius. There are six apertures formed within the body, with laterally outer apertures spaced from the outer surface by a greater amount than laterally intermediate apertures. The laterally intermediate apertures are spaced from the outer surface by a greater amount than laterally inner apertures. An integrated drive generator and a method of replacing a terminal lead support are also disclosed.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: October 27, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 10790726
    Abstract: The invention relates to an assembly (1000) comprising an electrical machine (100) comprising: a stator (9) having windings forming coils (106), a rotor (103), a shaft (101) rotating the rotor (103), and an impeller (1) for cooling the electrical machine, said cooling impeller (1) comprising at least two crowns (2, 21, 22), including a first crown (21) and a second crown (22), each crown (2, 21, 22) comprising blades (3), the blades (3, 31) of the first crown (21) of the cooling impeller (1) being arranged so as to generate the circulation of a cooling fluid flow in a first direction (F1), and the blades (3, 32) of the second crown (22) being arranged so as to generate the circulation of the cooling fluid flow in a second direction (F2), the second direction (F2) opposing the first direction (F1). Said invention is applicable to motor vehicles.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: September 29, 2020
    Assignee: INSTITUT VEDECOM
    Inventor: Guy Diemunsch
  • Patent number: 10784747
    Abstract: The invention relates to an electric motor, particularly an “external rotor motor”, comprised of a stator housing and a rotor housing which is rotatable with respect to the stator housing, wherein the rotor housing has a cooling ring disposed on its side which axially faces the stator housing, wherein the stator housing and the cooling ring are each provided with a plurality of first and second cooling fins (the second cooling fins also being referred to as “cooling ribs”) which face each other axially and are disposed so as to be distributed in the respective circumferential directions, which fins/ribs collaborate in flow technology when the rotor housing is in rotating operation; wherein, in an axial plan view, the first cooling fins extend radially outwardly, and the second cooling fins (the cooling ribs) are V-shaped and point in the circumferential direction, wherein a rotary relative movement of the first and second cooling fins (the cooling fins and the cooling ribs) generates a cooling air stream, at
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: September 22, 2020
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Michael Sturm, Werner Müller
  • Patent number: 10784741
    Abstract: A cooling structure for rotary electric machine is provided. The cooling structure for rotary electric machine comprises a sleeve, a plurality of dividers, a plurality of first walls and a plurality of second walls. The sleeve comprises an annular surface of a first half annular surface and a second half annular surface. The dividers are configured on the annular surface of the sleeve in parallel to provide multiple channels. The first walls are configured on the first half annular surface and between multiple corresponding dividers to provide multiple first division regions. The second walls are configured on the second half annular surface and between multiple corresponding dividers to provide multiple first division regions wherein the first division regions are asymmetric to the second division regions.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: September 22, 2020
    Assignee: HIWIN MIKROSYSTEM CORP.
    Inventors: Chen-An Li, Ruei-Bin Hsiao, Li-Wei Cheng
  • Patent number: 10734876
    Abstract: A brushless motor for a heating, ventilation, and air conditioning (HVAC) system. The brushless motor includes a rotor and a stator. The rotor has an odd number (X) of magnets. The stator defines an odd number (Y) of slots, each including a plurality of fractional-pitch phase windings. The brushless motor has a fundamental order that is (X·Y)/2, which is a non-integer number.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: August 4, 2020
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventors: Prakash Thawani, Stephen Sinadinos, Fouad Dallal
  • Patent number: 10724544
    Abstract: A centrifugal compressor is provided. The centrifugal compressor includes a housing and a rotatable assembly mounted for rotation about an axis within the housing. The rotatable assembly includes an impeller forming part of a compressor stage. A first air intake is located at a first end of the apparatus, the first air intake providing an air source for the compressor stage and a second air intake is located at a second end of the apparatus. A thrust plate is attached to the rotatable assembly, the thrust plate including at least one interior channel so that air entering the second air inlet passes through the at least one interior channel.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: July 28, 2020
    Assignee: Vortech Engineering, Inc.
    Inventors: Gregory Graham, Robert Anderson, James Middlebrook
  • Patent number: 10697368
    Abstract: The hyperbaric load control for a power plant is an energy storage device used to regulate the tangent velocity of a gas turbine. Specifically, the hyperbaric load control for a power plant: a) releases previously stored energy in the form of supplemental electrical energy to compensate for an energy deficit created by an operating condition where the electrical energy demanded by the electric load is greater than the energy provided by the gas turbine; and, b) absorbs and stores the excess energy created by an operating condition where the energy transferred to the electric generator from the gas turbine is greater than the electric energy demanded by the electric load. The hyperbaric load control for a power plant comprises an electric motor, a compressor, a high pressure gas tank, a supplemental turbine, a supplemental electric generator, and a control system.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: June 30, 2020
    Inventor: Tilahun Anshu
  • Patent number: 10675753
    Abstract: A robot includes an arm that includes an arm main body and a motor and rotates about a rotation axis, and an amplifier unit that is provided in the arm and includes a drive circuit which drives the motor, in which at least a portion of the amplifier unit or the motor is positioned on the outside of the arm main body as seen from an axial direction that is parallel to the rotation axis.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: June 9, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Hahakura, Hidenori Hama
  • Patent number: 10615656
    Abstract: A motor comprising: a stator including a plurality of coils, and a rotary axis penetrating the stator, the stator includes n (n?2) sets of three-phase circuits, each of which is provided with three phases, each phase of the three-phase circuit has a coil group in which m (m?2) coils are formed with a single conductive wire, and all coil groups of three-phase circuits have the same winding direction, the three-phase circuits include neutral point bus bars connecting each coil terminal on one side of each of the coil group at a neutral point, and three phase bus bars connecting each coil terminal on one side of each of the coil group, the three phase bus bars are arranged in a circumferential direction and form a phase bus bar group, and the phase bus bar group and the neutral point bus bars are alternately arranged in the circumferential direction.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: April 7, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Hidehiro Haga, Yu Asahi
  • Patent number: 10587170
    Abstract: A rotor body for a high-speed generator includes a rotor body with interior and exterior surfaces, a coolant inlet and outlet, and a rotor cooling path for actively cooling the rotor body. The coolant inlet and outlet extend between the interior and exterior surfaces. An interior segment of the rotor cooling path fluidly couples the coolant inlet and coolant outlet and is bounded by the rotor body interior surface. An exterior segment of the cooling path is bounded by the rotor body exterior surface and fluidly couples the coolant outlet an environment external to the rotor body.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: March 10, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Lubomir A. Ribarov, Robert Scott Downing, Richard A. Himmelmann
  • Patent number: 10566874
    Abstract: The rotary electrical machine comprises, in front, a pulley (3) secured to a shaft (9) of a rotor (20) passing through the front bearing (1a) of a housing. The bearing includes a base, having a nose (18) for mounting a front ball bearing (7) for rotating the shaft (9), and air inlets (15) defined by arms belonging to an outwardly opening area connecting a peripheral strip of material from the base to the nose (18) in order to shift the nose (18) toward the front in accordance with the central body of a device (100) for adjusting the tension of a belt received in the groove (31) of the pulley (3) and attached onto the housing (1a, 1b). The adjustment device (100) comprises at least one idler (200, 201) for tensioning the belt and a central opening (102) enabling passage of air through the air inlets (15).
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: February 18, 2020
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Ryadh Ben-Omrane, Christophe Monteil, Blaise Rouleau
  • Patent number: 10560003
    Abstract: A motor includes a shaft presenting a shaft lead end, a switch assembly including a switch arm shiftable between a first position and a second position, and shield structure. The shaft lead end and the switch assembly are disposed axially outward of an endshield. The shield structure is disposed axially outward of the switch arm to at least substantially restrict direct tool access to the switch arm from an axially outward position relative to the switch arm. The shield structure at least in part defines first and second tool access channels each extending radially inwardly to the shaft lead end, such that the shield structure enables direct tool access to the shaft lead end via the tool access channels but prevents or at least substantially restricts direct tool access to the switch arm via the tool access channels.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: February 11, 2020
    Assignee: Nidec Motor Corporation
    Inventors: John G. Schrader, Steven R. Palmer, Jeffrey S. Sherman
  • Patent number: 10557478
    Abstract: A fan assembly for a robot vacuum cleaner and a robot vacuum cleaner are provided. The fan assembly includes an electric motor, a stator impeller, a rotor impeller and a fan cover. The stator impeller defines a shaft hole, the electric motor is mounted on a side of the stator impeller, and an output shaft of the electric motor passes through the shaft hole. The fan cover is mounted on another side of the stator impeller, and an end surface of the fan cover away from the stator impeller defines an air inlet. The rotor impeller is mounted to the output shaft of the electric motor and located between the fan cover and the stator impeller.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 11, 2020
    Inventors: Xiaowei Xu, Fangfei Xiong
  • Patent number: 10530214
    Abstract: The application relates to a stator frame of an electrical machine having a first end and a second opposite end. A flange is protruding from the first end and surrounding the first end. The stator frame includes cooling fluid channels and cooling fins on the outer surface of the stator frame extending from the first end to the second end. The stator frame is formed as a single piece. The ends of the outer walls of the cooling fluid channels in the first end are connected to the flange and the cooling fins extend to the junction of the flange and the first end.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: January 7, 2020
    Assignee: ABB Schweiz AG
    Inventors: Toni Kilpeläinen, Aleksi Kinnunen, Jani Kosonen
  • Patent number: 10519969
    Abstract: A centrifugal fan is provided. The centrifugal fan comprises a housing and an impeller. The housing includes an upper cover and a lower cover. The impeller is configured in the housing. The impeller includes a hub, a plurality of blades and an air guiding structure. The hub is pivoted on the lower cover and rotates around a rotation axis. The rotation axis extends in the axial direction. The blades are connected to a peripheral surface of the hub and configured between the upper cover and the lower cover. The air guiding structure is connected to the blades. An angle between the air guiding structure and the rotation axis increases along with a distance in the direction away from the hub.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: December 31, 2019
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Hsin-Chen Lin, Ing-Jer Chiou
  • Patent number: 10523092
    Abstract: A vehicle AC power generator includes a protection cover disposed at the rear side of a rear bracket included in a housing of the vehicle AC power generator, an attachment bolt that penetrates a through-hole formed in a bottom portion of a protection cover and is fixed to a portion at one axle-direction side of the housing, an output terminal bolt that extends from a rectifier, which rectifies AC electric power, toward the outside of one axle-direction side of the protection cover, and an insert coated conductor that is supported by the output terminal bolt and the attachment bolt and is provided at the rear surface of the protection cover.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: December 31, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuya Akamatsu, Kazunori Tanaka, Kyoko Higashino
  • Patent number: 10516321
    Abstract: This invention is concerning a rectifying device in an AC power generator, the rectifying device including a broken-ring-shaped heat sink supporting a rectifying element and cooling the rectifying element and a circuit board holding the heat sink. The circuit board includes an engaging projection. The heat sink includes a hole, into which the engaging projection is fit, and a gravity center adjustment portion.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: December 24, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yuzuru Kobayashi
  • Patent number: 10516309
    Abstract: Provided is a rotating machine capable of obtaining a uniform temperature distribution by improving a cooling air flow to a heat generation portion. The rotating machine has a salient pole rotor (11) and a stator (12). The salient pole rotor (11) has a rotation shaft (15), a disk-shaped spoke (22), a cylindrical rib (23), and a plurality of salient poles (25) arranged in a radial shape on an outer circumferential surface of the rib (23), each of the salient poles (25) being formed along an axial direction of the rotation shaft (15). The disk-shaped spoke (22) is provided to an anti-feeding side end of the cooling air of the salient pole rotor (11). The cylindrical rib (23) is provided with through-holes (231) extending from an inner space of the cylindrical rib (23) through gaps between a plurality of salient poles (25).
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: December 24, 2019
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Takayuki Mihara, Dan Umeda
  • Patent number: 10468938
    Abstract: The invention relates to an electric motor (100) comprising a stator (2) and a rotor (3), the rotor (3) being arranged around the stator (2), an element (9) for supporting said rotor (3) and said stator (2), a motor support (5) through which a stream of fluid flows, a radiator (8) and an electronic body (7), said radiator (8) being inserted between said motor (100) support (5) and said electronic body (7), characterised in that the element (9) for supporting the rotor (3) and the stator (2), and the radiator (8), form the same so-called bifunctional part (30).
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: November 5, 2019
    Assignee: Valeo Systemes Thermiques
    Inventors: Morgan Le Goff, Geoffroy Capoulun
  • Patent number: 10454330
    Abstract: A motor including a stator including a plurality of stator slots having stator coils disposed therein, and a rotor rotatable within the stator about a central axis. The stator includes a plurality of stator channel formed adjacent to the stator slots and extending in the axial direction of the central axis.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: October 22, 2019
    Assignee: WARD LEONARD INVESTMENT HOLDINGS, LLC
    Inventors: Eric Sailor, Daniel Cook, Alexander Gimmel, Alex Bridgemohan, Paul Matthews, Myron Moroz
  • Patent number: 10432065
    Abstract: A brushless direct current motor for a power tool. The motor includes a stator assembly including a stator core having stator laminations with an annular portion and inwardly extending stator teeth. The motor also includes a rotor assembly including a rotor core having rotor laminations and defining a central aperture that receives an output shaft. The rotor assembly also includes a rotor end cap on a first side of the rotor core having a bearing holder and defining a channel, wherein the channel is open on a side of the rotor end cap facing the rotor core. The motor further includes a bearing provided in the bearing holder that couples the rotor end cap to the output shaft and a position sensor board assembly provided in the channel of the rotor end cap and configured to provide position information of the rotor core to a motor controller.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: October 1, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Andrew T. Beyerl, Keith Boulanger, Alex Huber, William A. Elger, Jeffrey M. Wackwitz
  • Patent number: 10418881
    Abstract: A rotary electric machine includes a rotor, a stator disposed facing the rotor in a radial direction having a stator core with a plurality of slots aligned in a circumferential direction and a stator winding wound around the slots of the stator core, and a cooling mechanism for cooling first and second coil-end groups of the stator winding by dropping a liquid coolant from an outer peripheral side thereof. The stator is disposed along an inner circumferential surface of at least one of the first and the second coil-end groups of the stator winding, and there is provided a shielding member for preventing the liquid coolant from falling into the inner circumferential side of the first and the second coil-end groups. Thus, it is possible to cool throughout the first and the second coil-end groups efficiently and reliably by the liquid coolant, a sufficient cooling effect can be obtained.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: September 17, 2019
    Assignee: DENSO CORPORATION
    Inventor: Akito Tamura
  • Patent number: 10418882
    Abstract: A traction motor comprises a stator, a rotor core, an iron core holder, a cooling fan, a rotor, a frame, a bracket, and a bearing unit. The cooling fan includes a main plate that separates the inside and the outside of the totally-enclosed traction motor; blades provided on the bracket side of the cooling fan and along a rotational direction of the rotor; and a guide provided on the bracket side of the blades. In the bracket, inlets are provided within an area obtained when the guide is projected onto the bracket. The guide is formed such that air drawn in through the inlets is guided to a rotor shaft.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: September 17, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Kenta Kaneko
  • Patent number: 10404136
    Abstract: A handheld grinder includes an elongated housing, an electric motor, an output shaft, a wall, a planar circuit board, and a motor drive circuit. The elongated housing defines a cavity therein and includes a motor case disposed at a front end and a handle portion to a rear end. The electric motor has a drive shaft that is mounted within the motor case. The output shaft is drivably coupled to the drive shaft of the electric motor. The wall separates the cavity between the motor case and the handle portion of the housing. The planar circuit board disposed in the handle portion of the housing. The motor drive circuit is accommodated entirely within the handle portion of the housing on the planar circuit board.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: September 3, 2019
    Assignee: Black & Decker Inc.
    Inventors: Craig A. Oktavec, David J. Smith, Colin C. Crosby, Matthew J. Velderman, Zollie W. Privett, Jr., Pradeep Pant, Kyle J. Christophersen, Daniel F. Nace, James H. Stiles, III, Floyd E. Moreland, IV
  • Patent number: 10396636
    Abstract: In a power converter, outer lead frames are drawn out from a semiconductor module and are bent to be separated from a cooler. Each of the outer leads has a terminal end. The terminal end of each outer lead frame projects from a virtual plane extending along a second surface of a housing. Connector leads each includes an inner portion disposed in the housing, and an outer portion drawn out from the housing and bent to be separated from the cooler. The outer portion of each connector lead has a terminal end. The terminal end of the outer portion of each connector lead projects from the virtual plane.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 27, 2019
    Assignee: DENSO CORPORATION
    Inventor: Nobuo Isogai
  • Patent number: 10355562
    Abstract: A slip-ring arrangement for an electrical rotary machine has a rotor and a sliding-contact device which is arranged on the rotor and has a slip ring, and a sliding-contact element with which the slip ring can make electrical contact. Furthermore, a radial fan impeller with an intake device is arranged on the rotor, wherein the intake device is designed in such a way that, during operation of the radial fan impeller, a cooling fluid can be drawn into the radial fan impeller through the intake device along the sliding-contact device. Furthermore, the slip-ring arrangement has a spiral housing which is of spiral design and surrounds a radial circumference of the radial fan impeller.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: July 16, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Christian Hoenig
  • Patent number: 10355564
    Abstract: The subject of the invention is an electronic architecture (10) intended to supply an electric machine for automotive vehicle, the electronic architecture (10) comprising at least: an electronic power unit (100); a thermal dissipator (200) supporting the electronic power unit (100); an electronic control unit (300) configured to control the said electronic power unit (100); a support (400) of the electronic control unit supporting the electronic control unit (300) and arranged between the electronic power unit (100) and the electronic control unit (300); and an electrical connector (500) comprising at least one power trace intended to be connected electrically to at least some electrical elements (phase ?, B+, B?) of the electric machine and/or of an electrical energy source, the electrical connector (500) being arranged between the electronic power unit (100) and the support (400) of the electronic control unit and configured to electrically connect the electronic power unit (100) and/or the electronic co
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 16, 2019
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Guillaume Tramet, Arnaud Mas, Ernesto Sacco
  • Patent number: 10312769
    Abstract: Provided is a motor enabling more simple and efficient cleaning of the inside of an air path. The motor includes a stator, a housing which holds the stator, a fan arranged outside the stator, a fan cover which houses the fan and is mounted on the housing, an air path including an inlet and an outlet for a cooling gas, and a first cleaning hole extending from a first opening that faces and opens to the air path at a position closer to the outlet than the inlet to a second opening which opens to the outside.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 4, 2019
    Assignee: FANUC CORPORATION
    Inventor: Yasuyuki Nakazawa
  • Patent number: 10298085
    Abstract: A motor support unit designed to be mounted on a shell of a heating, ventilation and/or air-conditioning installation is disclosed. Additionally, the motor support unit includes a motor and a motor support. The motor support unit further includes a connection piece for fitting on the motor support and may also be intended for fitting on the shell in such a manner as to form an interface between the motor support and the shell. Furthermore, the connection piece and the motor support are formed by two distinct pieces.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: May 21, 2019
    Assignee: Valeo Systemes Thermiques
    Inventors: Geoffroy Capoulun, Morgan Le Goff, Alain Farkh