Heat-exchange Structure Patents (Class 310/64)
  • Patent number: 10513186
    Abstract: The in-wheel electric motor system with an increased electromagnetic flux and energy recovery brake provides electromagnetic flux with optimal characteristics of starting torque and peak power in all modes of motor operating. It becomes possible because the stator of the electric motor consists of windings with a “star” connection and windings with a “wye” connection in such a way that electromagnetic fields of these windings are summed and the number of phases of the motor is more than a standard motor that has one type of winding.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: December 24, 2019
    Inventors: Denis Vasilyevich Shchurovskiy, Waldemar Olegovich Wagner
  • Patent number: 10498188
    Abstract: A motor equipped with dampers for reducing the vibration and noise of a rotator is disclosed. The motor includes: a stator block configured such that a core around is fastened and installed in the upper outer portion of the inside of a cover; a printed circuit board (PCB) fastened and installed below the stator block inside a motor housing; a shaft installed inside the stator block; and a rotor configured to include a magnet; wherein the motor housing includes an upper cover and a lower cover, a plurality of fastening portions is formed on the upper cover, and a plurality of fastening depressions is formed on the lower cover; and wherein the motor further includes dampers configured to receive and accommodate the fastening portions, to be inserted over side surfaces of the base portion of the stator block, and to cancel vibration and noise.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: December 3, 2019
    Assignee: Hyoseong Electric Co., Ltd.
    Inventor: Jingeun Jung
  • Patent number: 10491079
    Abstract: The invention relates mainly to a rotary electrical machine for a motor vehicle, comprising: a heat dissipater (65); two power modules (50) integrated in the heat dissipater (65), each comprising rectifier elements (53) which form three rectifier bridge arms (52), connection terminals (58) associated with the rectifier bridge arms (52), and a control unit which can control the rectifier bridge arms; and a connector (61) which establishes electrical connections, in particular between the terminals (58) for connection of the power modules (50) and the phase outputs of the rotary electrical machine.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 26, 2019
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Svetislav Jugovic, Fabrice Tauvron, Farouk Boudjemai, Pierre-François Ragaine, Laurent De Lamarre, Hugues Tempez
  • Patent number: 10454350
    Abstract: A controller-integrated rotating electric machine includes a rotating electric machine having a rotor, a stator, and a housing, and a controller having a plurality of switching element modules. Cooling fins having insulating coatings on surfaces thereof facing the switching element modules are bonded to the switching element module. The controller-integrated rotating electric machine of which the cooling fins are electrically insulated by having the cooling fins having the insulating coating on the surfaces facing the switching element modules, so that the electrolytic corrosion between the cooling fins and the heat sinks of the switching element modules is suppressed from occurring.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 22, 2019
    Assignee: DENSO CORPORATION
    Inventor: Takatoshi Inokuchi
  • Patent number: 10415572
    Abstract: There is provided an electric supercharger having a compressor including a compressor impeller, a motor housing, an electric motor rotationally driving the compressor, and a first bearing and a second bearing provided to support a shaft and a rotor in the motor housing. The first bearing is located on the compressor side of the rotor and the second bearing is located on the other side of the rotor. The motor housing includes a thermal conductive passage through which heat generated by a coil wound around a stator is transmitted to the first and second bearings. The thermal conductive passage between the coil and the first bearing is formed with a reduced thickness portion in such a way that thickness of the thermal conductive passage is reduced in a direction that is perpendicular to a direction in which the heat is transmitted through the thermal conductive passage.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: September 17, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Makio Oshita, Satoshi Umemura, Yutaka Fujiki, Toshihiro Yamamichi
  • Patent number: 10411574
    Abstract: An electronic control unit includes two inverters, a magnetic sensor, a failure detection unit, an inverter driving unit, a signal examination unit, and a failed element identification unit. The magnetic sensor detects a magnetic flux generated around a winding. The failure detection unit detects an ON-state failure of the inverter. When the ON-state failure is detected, the inverter driving unit stops driving the inverter to which the ON-state failure has been detected, and continues driving the other inverter. The signal examination unit examines a presence or absence of a special signal. When there is a signal appearing according to a special magnetic flux, the failed element identification unit identifies a failed switching element based on a motor electric angle generated by the signal.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: September 10, 2019
    Assignee: DENSO CORPORATION
    Inventor: Kotaro Nakashima
  • Patent number: 10374493
    Abstract: A configuration of a rectifying device configuring a vehicle-use rotating electric machine is such that when a lead drawn out from a stator winding is inserted into a through hole of a rear bracket forming a casing, a periphery of the lead is enclosed, and the through hole sealed, by a tubular member extended from a main body portion of a terminal block, and the through hole not blocked by the tubular member is sealed by a stopper portion extended in the same way from a main body portion of the terminal block. Even when the number of leads drawn out is reduced, standardization of the rear bracket is carried out by the through hole (3a) of the rear bracket being sealed by the stopper portion.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: August 6, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuzuru Kobayashi, Masao Akiyoshi, Kazunori Tanaka
  • Patent number: 10374472
    Abstract: An electrical machine includes a casing including a base wall provided with a projection projecting from the base wall towards the inside of the casing. A stator includes a core having a plurality of pole shoes, a plurality of conductors wound on the pole shoes to form a plurality of coils constituting a stator winding. Insulators are interposed between the core and the stator winding. A coil of the winding has an end portion engaged with the projection for heat exchange. The insulators include a housing for a first number of turns of the coil and a second housing for a second number of turns of the coil. The first and second housings are shaped such that a layer of the turns of the end portion abutted against the projection is defined by stretches of the conductors all substantially coplanar with each other.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: August 6, 2019
    Assignee: SPAL AUTOMOTIVE S.R.L.
    Inventor: Pietro DeFilippis
  • Patent number: 10355553
    Abstract: Disclosed is an electric machine (10) comprising a pole housing (12) and a printed circuit board (14) for controlling the electric machine (10). The circuit board (14) is arranged on a flanged side (16) of the pole housing (12), and a protective wall (18) which protects the circuit board (14) from loose small parts is arranged between the circuit board (14) and the pole housing (12).
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: July 16, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Christian Meyer, Markus Peters, Sebastian Hansen, Torsten Gmuend, Christian Acker
  • Patent number: 10348164
    Abstract: In a brush holder accommodating part 26d of a gear housing 26, paired flat surface parts 26c and paired curved parts 26b are alternately disposed so as to be formed into an elliptical shape, one of the paired flat surface parts is formed with first heat sinks 26i, and two brushes 20 and 20 mounted on a brush holder unit 19 accommodated in the brush holder accommodating part 26d are disposed near the first heat sinks 26i.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: July 9, 2019
    Assignee: Mitsuba Corporation
    Inventors: Hiroto Tanaka, Takeshi Kanai, Masaaki Kimura, Koji Tsuchiya
  • Patent number: 10348159
    Abstract: A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: July 9, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventor: Andrew T. Beyerl
  • Patent number: 10348167
    Abstract: A ceiling fan motor with a reduced height includes a stator, a rotor and a circuit unit. The stator includes an iron core and a shaft. The iron core has an assembly hole, and the shaft extends through the assembly hole in an extending direction. The rotor is rotatably coupled with an outer periphery of the shaft. The circuit unit is arranged between the iron core and the shaft in a radial direction of the shaft perpendicular to the extending direction of the shaft, or is arranged between the iron core and the housing of the rotor in the radial direction of the shaft.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 9, 2019
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Tso-Kuo Yin, Duo-Nian Shan
  • Patent number: 10332822
    Abstract: An electronic package connectable to an electric machine includes a cooling tower having a metallic wall with a radially outer wall surface. The radially outer wall surface includes discrete, radially outwardly projecting pedestals. The planar pedestal mounting surfaces are parallel with the central axis such that the radial distance between the axis and the radially outer wall surface is greater within the periphery than outside the periphery. Power modules are mounted to the pedestals. Each power module includes a base in thermal contact with a pedestal mounting surface and an opposing interior surface in thermal communication with a MOSFET power electronics device. A cover plate is spaced from the base interior surface. A dielectric housing member surrounds the MOSFET power electronics devices. An electrical connection terminal is disposed outside the periphery of each module. An electric machine including such an electronic package is also disclosed.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: June 25, 2019
    Assignee: BORGWARNER INC.
    Inventor: Michael D. Bradfield
  • Patent number: 10320265
    Abstract: A wiper motor has: a magnet disposed on the yoke and formed with at least four poles; an armature disposed on an inner side of the magnet; a speed reduction mechanism unit having an output shaft for transmitting the rotation of the armature shaft; a gear housing connected to the yoke; a gear housing cover covering an opening of the gear housing; a magnet attached to the output shaft of the speed reduction mechanism unit; an absolute position detecting sensor disposed so as to face the magnet; and a control board having the absolute position detecting sensor attached thereto, the control board being disposed between the gear housing and the gear housing cover, and configured to control the rotation of the armature shaft.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 11, 2019
    Assignee: Mitsuba Corporation
    Inventors: Hiroto Tanaka, Takeshi Kanai, Masaaki Kimura, Koji Tsuchiya, Hiroji Okabe, Toshiyuki Amagasa, Hachidai Watanabe
  • Patent number: 10308335
    Abstract: A watercraft comprises a motor, an inertial mass, and a fin. The motor oscillates the inertial mass about an axis, producing a torque reaction on and oscillation of the motor. Oscillation of the motor is communicated to the fin, producing thrust.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: June 4, 2019
    Inventor: Martin Spencer Garthwaite
  • Patent number: 10298098
    Abstract: A power tool includes a stator having a coil, a sensor circuit board attached to the stator and on which a magnetic sensor is provided, the sensor circuit board having a first side facing the stator and a second side opposite the first side, a rotor configured to rotate with respect to the stator, a tool-accessory retaining part configured to be driven by the rotor and a power-supply line configured to supply electrical power to the coil. The power-supply line is connected to the coil without traversing the second side of the sensor circuit board.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: May 21, 2019
    Assignee: MAKITA CORPORATION
    Inventor: Akira Niwa
  • Patent number: 10277091
    Abstract: Disclosed is an end cap for a motor housing containing an electric motor, including a tubular structure defining an interior space, including an open first end connectable to the mater casing; a second end, including a first planar surface; a second planar surface offset from the first planar surface and substantially parallel to the first planar surface; and at least one air grate surface substantially perpendicular to the first planar surface and the second planar surface, positioned between and attached to the first planar surface and the second planar surface, and wherein the at least one air grate surface includes at least one air grate configured to permit air flow into and/or out of the interior space.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: April 30, 2019
    Assignee: Asia Connection LLC
    Inventor: Reza Afshar
  • Patent number: 10236749
    Abstract: A motor comprises a motor main body including a rotor and a stator around which a coil is wound, a drive circuit part including a circuit board to which a drive circuit including a power element is attached on mainly one face, a heat sink arranged on another face of the circuit board and to radiate heat of the drive circuit part, and a winding terminal to which at one side of the winding terminal an end portion of the coil of the motor main body is electrically connected. Another side of the winding terminal is partially electrically connected to the power element attached to the circuit board, and the winding terminal conducts heat generated by the power element from the one face to the other face of the circuit board.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: March 19, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Yutaka Kamogi, Yasuhiro Ikehara
  • Patent number: 10236750
    Abstract: A rotating electric machine with a built-in control device that can be downsized. The rotating electric machine with a built-in control device includes a rotor including a permanent magnet of sensor use provided on a rear side of a rotor shaft, a front side housing fixed with a first bearing supporting a front side of the rotor shaft, a motor frame including a rotor and a stator, a heat sink fixed with a second bearing supporting the rear side of the rotor shaft, a control substrate mounting a rotary sensor, a microcomputer, and a driving circuit. The microcomputer controls the driving circuit based on signals from the rotary sensor and drives a plurality of switching elements. At least one of a smoothing condenser and a noise reduction coil, connected to the switching elements, is arranged at a far rear side of the control substrate.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: March 19, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yu Hirotani, Masatsugu Nakano, Hiroyuki Waku, Hiroyuki Akita, Koji Kise, Hiroyasu Iwabuki, Kosuke Nakano
  • Patent number: 10237967
    Abstract: Among other things, an electronics assembly within an imaging system is provided. The electronics assembly includes a circuit board assembly through which a signal is delivered. The circuit board assembly defines a heat transfer opening between a first side and a second side. An electronics component is electrically coupled to the first side of the circuit board assembly. A heat transfer component supports the electronics component. The heat transfer component includes a base portion coupled to the electronics component and to the circuit board assembly. The heat transfer component includes a heat dissipation portion extending through the heat transfer opening of the circuit board assembly. The heat dissipation portion dissipates heat generated by the electronics component.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: March 19, 2019
    Assignee: Analogic Corporation
    Inventors: Richard A. Maillet, Jr., Garry Allen Fellows
  • Patent number: 10224779
    Abstract: According to an embodiment of the invention, an electric machine is provided. The machine includes a support structure, a stator secured to the support structure, and a rotor rotatably secured to the support structure. The machine also includes a circuit board positioned at least partially within the support structure. The circuit board is adapted for controlling an electromagnetic field produced by the stator. The machine also includes a potting material in contact with a first surface of the circuit board and a harrier for at least partially containing the potting material.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: March 5, 2019
    Assignee: Regal Beloit America, Inc.
    Inventors: Philip Wayne Johnson, Joshua James Westhoff, Michael Allen Marks
  • Patent number: 10211709
    Abstract: In an electric power steering device, a power module includes a plurality of terminals including a motor control terminal and a power supply terminal connected to a power supply, each having a distal end portion being oriented toward a control board. A holder has holes through which the terminals pass. The terminals each have the distal end portion to be connected to the control board. A winding terminal has a distal end portion to be connected to the distal end portion of the motor control terminal. The control unit further includes a junction terminal. The junction terminal and the power supply terminal each having a distal end portion extending from the control board toward the connector assembly are respectively connected to connector terminals of the connector assembly.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 19, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihito Asao, Akihiko Mori
  • Patent number: 10160478
    Abstract: A frame of an electric motor opens in one end. A heat sink, to which a control substrate is connected, closes an opening of the frame. A stator is positioned on an inner circumferential surface of the frame to be movable in an axis of rotation direction. A fastening bolt penetrates through the heat sink and a motor cover to fasten to the frame, thereby holding the stator between a pressing portion formed on the heat sink and a stepped portion formed on the inner circumferential surface to fix the stator to the frame. A disc spring is interposed between a front bearing that retains a rotor shaft and a spring retainer formed in the heat sink, and the rotor shaft is biased in the axis of rotation direction by a biasing force from the disc spring.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: December 25, 2018
    Assignee: DENSO CORPORATION
    Inventor: Jirou Hayashi
  • Patent number: 10122247
    Abstract: In this inverter-integrated electric compressor, the circuit board of an inverter device is divided into: a main circuit board (23) having a shape and size that can be housed within an inverter housing section (8); and a sub-circuit board (26) that is electrically connected to the main circuit board (23). The main circuit board (23) is affixed and installed to boss sections (27) at at least the (four) corners, and is also affixed and supported by electrical components mounted to the circuit board (23). The sub-circuit board (26) has a flaring shape from the front end side to the back end side, and is affixed and installed to boss sections (31) at three front/back points in a space below the main circuit board (23) to the back of a bottom section inclined downwards toward the back from the front of the inverter housing section (8).
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: November 6, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Masahiko Asai
  • Patent number: 10087932
    Abstract: A G-rotor pump assembly is disclosed. The assembly makes use of a housing having a pump/motor housing portion and a laterally projecting housing portion. An electric motor is disposed within the pump/motor housing portion. A controller has a circuit board with a portion which is positioned within the pump/motor housing portion so as to be generally axially aligned with the electric motor and in proximity to the electric motor. A lower cover is configured to engage with the housing to encapsulate the controller and the electric motor within the housing.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: October 2, 2018
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Zugang Huang, Charles G. Stuart
  • Patent number: 10069367
    Abstract: An assembly for use in a rotor of a turbine generator is provided that includes at least one creepage disposed on an upper load surface of copper windings. At least one slot spring is disposed on the creepage, and at least one amortisseur is disposed on the slot spring. A plurality of hollow locking members are disposed within apertures of the creepage, the slot spring, and the amortisseur. At least one slot wedge is disposed on the slot spring and the plurality of hollow locking members. At least one field retaining ring is disposed against one of the end portions of the rotor body and against the slot wedge.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 4, 2018
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Andrew Adam, Mark Roberts
  • Patent number: 10063123
    Abstract: In the electric power converting apparatus, a frame unit is configured by mounting an inner frame into an outer frame, brackets are disposed on two axial ends of the frame unit, an annular liquid cooling jacket is configured between the inner frame and the outer frame, the inner frame is configured into a tubular shape by bending a plurality of base members that are linked consecutively at thin linking portions between the base members, and butting together the base members that are positioned at two ends in a direction of linking, the power modules are mounted to respective side wall surfaces of the inner frame that face radially inward, and sealing members that seal the liquid cooling jacket are respectively disposed in the butted portion of the base members, and between the frame unit and the bracket.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: August 28, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Junji Kitao, Yoshihiro Miyama, Akihiro Daikoku, Norihiro Watanabe
  • Patent number: 10044248
    Abstract: In an electric driving apparatus and an electric power steering apparatus, an electronic control assembly is divided into a power-supply circuit unit mounted on a metal substrate, a power-conversion circuit unit mounted on a metal substrate, and a control circuit unit mounted on a resin substrate. A power-supply-connector wiring part, which supplies electric power from the power-supply circuit unit to the power-conversion circuit unit and the control circuit unit, and a signal-transmission-connector wiring part, which transmits signals to be input to or output from the control circuit unit, are embedded in a synthetic-resin connector terminal assembly arranged on an outer peripheral side of each of the metal substrates.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: August 7, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Masao Fujimoto
  • Patent number: 10005190
    Abstract: An apparatus including a robot arm comprising a wrist, and an end effector. The wrist includes a frame member. The frame member includes a first material having a first coefficient of thermal expansion. The end effector is connected to the wrist at a connection. The end effector is configured to support a substrate thereon. The end effector includes a first member and a second member. At least one of the first and second members has a different second material with a different second coefficient of thermal expansion. The connection includes the first and second members being stationarily attached to each other with a portion of the frame member sandwiched therebetween. The connection is configured to substantially prevent the different respective coefficients of thermal expansion to deflect the end effector relative to the wrist when the end effector and wrist are heated and/or cooled.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: June 26, 2018
    Assignee: Persimmon Technologies Corporation
    Inventor: Tuan Ha
  • Patent number: 10008909
    Abstract: A motor driving control device for a vehicle that includes: a circuit board on which is packaged a circuit that generates the voltage applied to windings of a motor, the circuit board having a ground region; a heat dissipating member that dissipates heat from the circuit board, and that is electrically connected to the ground region on the circuit board; a supporting member that holds the circuit board and a bearing member of the motor, and that has an insulating surface; and an electrically-conductive member that is provided at a surface of the supporting member, and that, by electrically connecting the bearing member and the heat dissipating member, grounds a rotating body, an output shaft and the bearing member of the motor.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: June 26, 2018
    Assignee: ASMO CO., LTD.
    Inventor: Kentaro Ozaki
  • Patent number: 10003233
    Abstract: In a mechanically and electrically integrated rotary electric machine, a motor portion and an inverter portion are inserted inside a cylindrical frame. The motor portion has a plurality of coils. The inverter portion has a plurality of switching elements. The coils and the switching elements are electrically connected by a connector. The connector has: an end portion connector that distributes sinusoidal electric currents from the switching elements to the respective coils; and a plurality of axial connectors that direct the sinusoidal electric currents from the switching elements to the end portion connector. The end portion connector is disposed on an end portion of the motor portion near an output shaft. The axial connectors are disposed parallel to an axial direction of the frame so as to pass from the switching elements through a mounted region of the motor portion.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: June 19, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Norihiro Watanabe, Yoshihiro Miyama, Hideaki Arita, Akihiro Daikoku
  • Patent number: 9960654
    Abstract: An electronic package adapted for connection to a rear frame member of an electric machine of liquid and/or air-cooled type. The electronic package includes a cooling tower having opposite first and second axial ends spaced along a package central axis. The cooling tower includes a metallic wall extending about the package central axis to define a radially outer wall surface. The cooling tower is at ground potential and defines a heat sink. The electronic package also includes a plurality of power modules mounted in conductive thermal communication to the cooling tower at positions on the radially outer wall surface. Heat transference to the cooling tower from each power module occurs along a respective primary cooling path. Transference along the primary cooling paths of heat from the cooling tower includes thermal convection to air and/or liquid. An electric machine of liquid and/or air-cooled type including an electronic package is also disclosed.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: May 1, 2018
    Assignee: BORGWARNER INC.
    Inventor: Michael D. Bradfield
  • Patent number: 9954417
    Abstract: A power tool with a combined printed circuit board (PCB) that reduces internal wiring of the power tool and provides a large amount of air flow to internal components. In some instances, the combined PCB has a surfboard shape and includes a motor control unit and power switching elements (Field Effect Transistors or FETs). The combined surfboard PCB is located above the trigger, but below the motor and drive mechanism. In other instances, the combined PCB has a doughnut shape and is located coaxially with a motor shaft. The combined PCB may be positioned between a doughnut-shaped control PCB and the motor.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: April 24, 2018
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Matthew J. Mergener, Michael Kolden, William E. Check, Matthew P. Wycklendt, Andrew T. Beyerl
  • Patent number: 9915198
    Abstract: A belt pulley arrangement for a belt drive to drive auxiliary units of a motor vehicle, having a belt pulley for introducing a torque that can be provided via a flexible drive means, an output shaft for driving an auxiliary unit, in particular a cooling water pump, and an electric machine for the transmission of torque between the belt pulley and the output shaft, wherein the electric machine has a rotor connected to the belt pulley and a stator connected to the output shaft. As a result of the power flow between the belt pulley and the output shaft, which can be influenced by the electric machine, it is not necessary to design the auxiliary unit that is attached via the output shaft for the least beneficial operating point, so that the auxiliary unit can be dimensioned smaller and a reduction in the installation space for motor vehicle components, in particular the installation space for auxiliary units of a motor vehicle that can be driven via the belt drive, is made possible.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: March 13, 2018
    Assignee: Schaeffler Technologies AG & Co., KG
    Inventors: Oliver Dippold, Vladimir Baranov, Ralf Wagner, Bernd Hartmann, Laszlo Man
  • Patent number: 9903379
    Abstract: An inner surface of each first supporting hole of a shroud ring has on both sides in the axial direction of a turbine impeller two first bearing portions by which first nozzle shaft is rotatably supported. An inner surface of each second supporting hole of a nozzle ring has a second bearing portion by which a second nozzle shaft is rotatably supported. The fitting clearance between the second bearing portion and the second nozzle shaft is set larger than the fitting clearance between each of the first bearing portions and the first nozzle shaft.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: February 27, 2018
    Assignee: IHI CORPORATION
    Inventors: Kuniaki Iizuka, Yoshinari Yoshida, Yasushi Asada, Osamu Kagimoto, Hideumi Ohkuma, Yohei Suruga, Toshihiko Kitazawa
  • Patent number: 9888592
    Abstract: A rectifier module comprises a conductive housing made of injection molded aluminum or aluminum alloy. Diodes are inserted into recesses formed in the housing. The housing is placed at an alternating input potential during operation, and transmits alternating current input power to the diode modules for conversion to direct current power. Multiple recesses may be provided for high and low side diodes, of which there may be one or many. Multiple such modules may be provided for converting multiple phases of input power to direct current power.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: February 6, 2018
    Assignee: Illinois Tool Works Inc.
    Inventor: Nathan J. Jochman
  • Patent number: 9822998
    Abstract: A centrifugal compressor includes a casing, an inlet guide vane, an impeller, a motor, a diffuser and a cooling medium delivery structure. The motor includes a rotor mounted on the shaft and a stator disposed radially outwardly of the rotor to form a gap between the rotor and the stator. The cooling medium delivery structure includes inlet and outlet conduits located to supply and discharge a cooling medium to and from the motor. The shaft has an external shape different than an internal shape of the rotor to form at least one axial passageway between the shaft and the rotor. The cooling medium is supplied through the gap and the at least one axial passageway to cool the rotor.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 21, 2017
    Assignee: DAIKIN APPLIED AMERICAS INC.
    Inventors: Joseph Layton Knopp, Jeffrey Allen Morgan, Ronald J. Formosa, Jr.
  • Patent number: 9812919
    Abstract: The purpose is to provide an inverter-integrated electrically driven compressor by which the danger of contacting an inverter device while power is being applied can be overcome in a reliable manner, without the need to provide any extra components, such as safety devices or the like. In this inverter-integrated electrically driven compressor, the inverter device is arranged housed within an inverter housing part hermetically sealed by a cover, and power and communication lines from an external power supply and a control device are connectable to the inverter device through connectors. The connector on the compressor side is furnished to the cover side, and at least one bolt of a fastening means for fastening the cover to the inverter housing part is furnished at location covered by the connector on the power line side, making access impossible, when the connector on the power line side has been coupled to the connector on the compressor side.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: November 7, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.
    Inventor: Noriaki Arashi
  • Patent number: 9787159
    Abstract: A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: October 10, 2017
    Assignee: Milwaukee Electric Tool Corporation
    Inventor: Andrew T. Beyerl
  • Patent number: 9780619
    Abstract: In construction of an electric drive device such as an electric power steering device or the like, there is employed a cylindrical metal housing that has therein in order first, second, third and fourth spaces coaxially arranged to respectively house therein a power circuit part, a power conversion circuit part, a control circuit part and an electric motor, a circular heat transfer metal substrate is arranged in the cylindrical metal housing between the first and second spaces and the circular heat transfer metal substrate has a cylindrical outer wall that is in contact with a cylindrical inner surface of the cylindrical metal housing, one flat surface to which a basal metal plate of the power circuit part is intimately connected and another flat surface to which a basal metal plate of the power conversion circuit part is intimately connected.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: October 3, 2017
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Masao Fujimoto
  • Patent number: 9755482
    Abstract: In one aspect, a stator for use in a liquid cooled electric machine having a rotor is provided. The stator includes a stator body having a radially outer periphery and a radially inner periphery, and at least one first coolant passage extending radially through the stator body from the outer periphery to the inner periphery. The at least one first coolant passage facilitates providing a coolant to an air gap defined between the stator body and the rotor.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 5, 2017
    Assignee: Regal Beloit America, Inc.
    Inventor: John Edward Raczek
  • Patent number: 9748819
    Abstract: A motor includes a rotor, a stator, a housing, and a driving shaft. The rotor includes a rotor body and two rotor covers fixed with two ends of the rotor body respectively. The stator sleeves on the rotor body. The housing sleeves on the stator. The housing includes a base body, a first cover, and a second cover. The base body sleeves on the stator. The first cover and the second cover assembling with opposite ends of the base body correspondingly. The first cover defines an oil inlet hole and an oil outlet hole. A driving shaft passes through and non-rotatably connected to the rotor body and the two rotor covers. Two recesses are separately formed in an inner surface of the base body and two gaps formed between the base body and the stator thereof corresponding to the oil inlet hole and the oil outlet hole.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: August 29, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jin-Yu Ko, Shih-Hsin Hsu
  • Patent number: 9730366
    Abstract: An electromagnetic interference (EMI) suppressing shield is disclosed. The EMI suppressing shield can include a plurality of shield portions electrically coupled to a positive electric potential polarity or a negative electric potential polarity. At least some of the plurality of shield portions can be electrically isolated from one another. At least one of the plurality of shield portions can be electrically coupled to the positive electric potential and at least one of the plurality of shield portions can be electrically coupled to the negative electric potential.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: August 8, 2017
    Assignee: Raytheon Company
    Inventors: Boris S. Jacobson, Stephen R. Elkins, Bradley S. Jaworski
  • Patent number: 9726188
    Abstract: Disclosed is an end cap for a motor housing containing an electric motor, including a tubular structure defining an interior space, including an open first end connectable to the motor casing; a second end, including a first planar surface; a second planar surface offset from the first planar surface and substantially parallel to the first planar surface; and at least one air grate surface substantially perpendicular to the first planar surface and the second planar surface, positioned between and attached to the first planar surface and the second planar surface, and wherein the at least one air grate surface includes at least one air grate configured to permit air flow into and/or out of the interior space.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: August 8, 2017
    Assignee: Asia Connection LLC
    Inventor: Reza Afshar
  • Patent number: 9698648
    Abstract: Recesses and projections that extend in an axial direction are formed on an outer-circumferential surface of a molded resin body. The recesses are provided on portions where are extended outward from the winding and are on the outer circumferential surface. In addition, further recesses and projections that extend in a radial direction are formed on an axial-direction end surface of the molded resin body. The further recesses are provided on portions of the axial-direction end surface that are aligned in the axial direction with the winding.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: July 4, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yuichiro Tashiro, Hideharu Hiwaki
  • Patent number: 9680351
    Abstract: An electrical machine has passages in the rotor. The passages have an inlet port and an exit port disposed at different locations. The passages remove heat from the electrical machine during operation. Another embodiment is an electrical machine rotor. The rotor has passages that remove heat from an electrical machine during operation. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for electrical machines and the cooling of electrical machine rotors and/or stators.
    Type: Grant
    Filed: March 15, 2014
    Date of Patent: June 13, 2017
    Assignee: INGERSOLL-RAND COMPANY
    Inventors: Fredrik Andreas Boxberg, Petri Juhani Maki-Ontto, Juha Tuomas Saari
  • Patent number: 9661789
    Abstract: An alternator includes a housing body, and an electronics chassis electrically in common with output voltage (B+) of the alternator, conductively isolated from heat of the housing body, and having cooling fins. An air router intermediate the housing body and the chassis directs cooling air from air intake openings to the cooling fins. An electric machine includes a housing with air intake openings, an electronics chassis having rectifier electronics mounted thereon and having axially-extending cooling fins, and an air router secured intermediate the housing body and the electronics chassis, for routing the cooling air from the air intake openings directly to the cooling fins. An alternator includes a housing, an electronics chassis electrically in common with (B+), air intake openings, and an air router secured intermediate the housing body and the electronics chassis, the air router structured for routing air from the air intake openings directly to the electronics chassis.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 23, 2017
    Assignee: Remy Technologies, LLC
    Inventors: Alex Creviston, Chris Bledsoe
  • Patent number: 9660504
    Abstract: A cooling device mounted in a flow path formed by an internal space of a cooling fluid duct being mounted on the periphery of a frame of a rotating electric machine is configured in such a manner that at least one of the end-face portions between a first end-face portion through which a cooling fluid flows into the cooling device and a second end-face portion from which the cooling fluid flows out thereof is placed tilting with respect to at least one of a first orthogonal surface perpendicular to an inflow direction of the cooling fluid and a second orthogonal surface perpendicular to an outflow direction of the cooling fluid, or with respect to a flow-path-width's direction perpendicular to a direction in which an axis line of a stator extends.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: May 23, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kiyonori Koga, Masao Akiyoshi
  • Patent number: 9627948
    Abstract: An electronics package for an alternator includes an electrically conductive carrier member and a terminal assembly engaging the carrier member. The carrier member includes an inner side, an outer side, and at least one passage extending from the inner side to the outer side. A plurality of switches are connected to the carrier member. The terminal assembly includes an electrically insulative portion and a plurality of electrical traces extending through the electrically insulative portion. The electrically insulative portion includes a post extending through the at least one passage of the carrier member, a first shoulder engaging the outer side of the carrier member, and a second shoulder engaging the inner side of the carrier member. The post, the first shoulder, and second shoulder are all formed as a unitary component.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: April 18, 2017
    Assignee: REMY TECHNOLOGIES LLC
    Inventors: Christopher Bledsoe, Kirk Neet
  • Patent number: 9586615
    Abstract: An electric power steering apparatus (1) is provided with a heat sink (5) and an intermediate member (4) whose surface portions are perpendicularly placed with respect to an axial direction of a motor's shaft center, and arranged in such a way that each of power modules (51a, 51b) of a plurality of driving circuits is attached on a surface portion of the heat sink (5) so that an extending direction of a maximum outer dimension of the power modules (51a, 51b) is perpendicular to the axial direction, and each of electric devices (C1a-C1b) of the plurality of driving circuits is attached on a surface portion of the intermediate member (4) so that an extending direction of a maximum outer dimension of the electric devices (C1a-C1b) is perpendicular to the axial direction.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: March 7, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihito Asao, Akihiko Mori