End Turn Supports Patents (Class 310/260)
  • Patent number: 10556499
    Abstract: An apparatus for cooling a motor of a hybrid vehicle includes a support ring that is disposed between a motor casing and a motor and has a shape that encloses the motor. A water jacket is formed in the support ring and circulates cooling water and an oil jacket is formed in a support ring and circulates oil. Further, oil is discharged from the oil jacket is sprayed onto the motor to enable the oil to be used to cool the motor and to enable cooling water to be used to cool the motor. Accordingly, the performance of cooling the motor is enhanced.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: February 11, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jong Hyun Kim, Hak Sung Lee, Yeon Ho Kim, Tae Ho Kim, Sung Hyun Ahn
  • Patent number: 10554093
    Abstract: A stator of a brushless motor includes: a stator core; a coil that is formed by winding a conducting wire around the stator core; a connecting terminal that is electrically connected to an end portion of the coil; and a terminal fixing base that has an electrical insulation property, is attached to an end portion of the stator core on one side in an axial direction thereof, and fixes the connecting terminal. The connecting terminal includes a fixing portion that is fixed to the terminal fixing base, an outward projecting portion that extends from the fixing portion toward outside in a radial direction than the stator core, and a joining portion that overlaps with the outward projecting portion in the axial direction and is positioned outside the stator core in the radial direction. The joining portion is opened outward in the radial direction.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: February 4, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Nobuyasu Miwa, Kiyohiro Fukaya, Takemitsu Sumiya, Akihiro Yasui
  • Patent number: 10523076
    Abstract: A method of fabricating a dynamoelectric machine utilizing multi-turn coils includes manufacturing a multi-turn coil having turn and ground insulation and installation of the coil into the stator core of the machine. The loop regions of the coil have no ground insulation during installation and the ground insulation at the loop regions is completed after installation of the coil.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 31, 2019
    Assignee: Voith Patent GmbH
    Inventors: Inna Kremza, Jeff Fenwick
  • Patent number: 10516313
    Abstract: An insulator for an armature has holes and guide portions. The holes are penetrated by pins. The pins are connected to one ends of corresponding coils, respectively. The guide portions respectively guide the jumper lines in a circumferential direction with respect to an axis.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: December 24, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Junichi Satou, Motofumi Ohtsuji
  • Patent number: 10468930
    Abstract: A stator of an electric motor is provided. The stator includes a plurality of segments, each of the segments including a tooth having a magnetically-permeable material, an electric coil surrounding the tooth, and at least one insulator. The stator also includes a plurality of connectors, each connector including first and second terminals, the first terminal adapted to be inserted into the at least one insulator and to couple to the electric coil of each of the plurality of segments and a circuit board coupled to input power lines and including apertures adapted to receive the second terminals of the plurality of connectors. The circuit board is coupled to the electric coils of each of the plurality of segments via when the second terminals are received in the apertures.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: November 5, 2019
    Assignee: KOLLMORGEN CORPORATION
    Inventors: Scott Dawson, Anthony Nozzi
  • Patent number: 10468923
    Abstract: A motor is cooled with a coolant. The motor includes a rotor rotatable about an axis, a stator including a stator core and windings wound about the stator core, a housing enclosing at least a portion of the stator, and a resiliently deflectable spray ring extending circumferentially relative to the axis. The spray ring defines at least one orifice configured to direct coolant on the stator. The spray ring presents first and second arcuately spaced apart ends defining a gap therebetween.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: November 5, 2019
    Assignee: Nidec Motor Corporation
    Inventors: Raymond D. Heilman, Andrew F. Poag, S. Duke Snider, John T. Scoble, III, Thomas E. Kirkley, Jr.
  • Patent number: 10468931
    Abstract: A generator connection ring support device includes a base, a first protruding member extending from the base, a second protruding member extending from the base substantially parallel to the first protruding member, a fastener hole extending through the base and the first protruding member, and a clamping hole extending through the base into the first slot. The clamping hole is configured to at least partly house a clamping element. The first and second protruding members define a first slot therebetween to receive a connection ring, each protruding member having a first end proximate the base and a second end distal the base, the first protruding member configured to be fastened to an end winding axial support at the distal end of the first protruding member, the first protruding member having a longitudinal axis, the fastener hole aligned with the longitudinal axis of the first protruding member.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: November 5, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Karina Elizabeth Padilla, Anthony Salvatore Arrao, Jayan Kaadaapuram George, Jason Rueda
  • Patent number: 10439463
    Abstract: An assembly and a method for supporting generator stator end winding coils are presented. The assembly includes an outer support circumferentially disposed on outer side of bottom end winding coils and inner braces disposed on inner side of top end winding coils and circumferentially spaced apart from each other. At least one inner brace is disposed along an axial direction of the top end winding coils. Studs are radially oriented and threaded into the inner braces from the outer support. The studs are tensioned and retightenable to a required clamping force for supporting the end winding coils. Filler layers are disposed between the top end wind coils and bottom end wind coils for supporting the clamping force.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 8, 2019
    Assignee: SIEMENS ENERGY, INC.
    Inventors: David Thomas Allen, Benjamin Todd Humphries, Robert Gore
  • Patent number: 10432052
    Abstract: A side winding motor stator includes a plurality of stator structures, a plurality of winding structures and a plurality of winding rolls. The stator structures are assembled to form a stator module. Each of the stator structures includes a stator tooth and an insulated frame. The stator tooth is configured into the insulated frame. The insulated frame has a gap. The winding structures, each of which has a plurality of lateral slots, are engaged through the gap. The winding rolls are engaged in the lateral slots.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: October 1, 2019
    Assignee: TECO ELECTRIC & MACHINERY CO., LTD.
    Inventors: Lian-Shin Hung, Ching-Chih Huang, Shu-Wei Lin
  • Patent number: 10424983
    Abstract: A bus bar extended end portion of a bus bar that projects from a main body of a bus bar module and a coil conductor extended end portion extend in the same direction, and are disposed adjacent to each other. The respective distal ends of the coil conductor extended end portion and the bus bar extended end portion are welded to each other. The coil conductor extended end portion and the bus bar extended end portion are also fixed to each other at a position away from the weld.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: September 24, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Akira Takasaki
  • Patent number: 10418867
    Abstract: A switched reluctance motor include: a stator; a case in which the stator is accommodated; a rotor disposed inward of the stator in the radial direction of the switched reluctance motor; and a holding member fixed to the case. The holding member is configured to hold the stator with the stator spaced apart from an inner peripheral surface of the case. The holding member includes a holding portion and a fixed portion. The holding portion is configured to hold the stator from the outside in the radial direction. The holding portion is spaced apart from the inner peripheral surface of the case. The fixed portion is fixed to the case.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: September 17, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kensuke Yoshizue, Kazuya Arakawa, Junichi Deguchi, Masahide Uemura
  • Patent number: 10381894
    Abstract: A rotary electric machine stator includes a stator core including a plurality of teeth, a coil wound around the teeth, a power wire being drawn out from the coil, and a retainer member that presses the coil end against the stator core. The retainer member includes a pressing portion disposed on an end surface in an axis direction of the coil end, leg portions extending from respective end portions on opposite sides of the pressing portion toward respective attachment portions provided at the stator core, and attachment ends provided at the respective leg portions and fixed to the respective attachment portions, and the power wire is drawn out from between the leg portions on the opposite sides of the pressing portion.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: August 13, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshitada Yamagishi
  • Patent number: 10355551
    Abstract: The present disclosure relates to a stator assembly for an electrical machine, and more in particular relates to a support element utilized within the stator assembly in order to improve its performance. The support element allows the thermal expansion of round connection arms while detuning the Eigen-frequency and reducing the amplitude of the vibrations.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 16, 2019
    Assignee: General Electric Company
    Inventors: Christian Auge, Stefan Handt
  • Patent number: 10298086
    Abstract: A rotating electric machine comprising at least one end flange carrying a bearing, and a housing onto which the end flange is attached, said housing being cooled by a liquid cooling circuit and having at least two connectors communicating with the cooling circuit. The two connectors allow the supply and return of cooling liquid to and from the flange when the flange is configured to be cooled by a flow of the cooling liquid.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: May 21, 2019
    Assignee: MOTEURS LEROY-SOMER
    Inventors: Thierry Pera, Philippe Ciciliani, Bernard Corberand
  • Patent number: 10260498
    Abstract: Systems and methods for securing coils of magnet wire to a support core in a linear motor that is used, for example, in an ESP. A hollow member such as a cylindrical metal tube is provided as a support core which is adapted to receive a mover of the linear motor. Coils of magnet wire are positioned at the exterior of the support core (e.g., wound around the core). An outer layer of shrink-wrap material is placed around the support core and coils and is heated, causing it to shrink and conform to the coils and the support core. The shrink-wrap material provides pressure against the coils which holds them securely against the support core. This assembly is then positioned within a stator housing and secured to form the stator for the linear motor.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 16, 2019
    Assignee: Baker Hughes Incorporated
    Inventor: John M. Knapp
  • Patent number: 10193420
    Abstract: Provided is a rotating electric machine capable of improving heat dissipation from each of busbars to achieve a higher output. The rotating electric machine includes: a stator core (8); a frame (3); coil portions; a plurality of busbars (18, 19, 20) arranged on one end surface side of the stator core (8), which are to be electrically connected to the coil portions to distribute electric power to the coil portions; a holder (17); and a plate (24) having one end portion facing at least one of the plurality of busbars (18, 19, 20) and another end portion exposed externally from the holder (17) to be held in contact with an outer circumferential surface of a jacket (4). The plate (24) guides heat of the plurality of busbars (18, 19, 20) from the one end portion to the another end portion.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: January 29, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ryuichi Kitora
  • Patent number: 10193407
    Abstract: A rotor has a rotor core with protruding fingers defining slots for conductors and support blocks at the axial ends of the fingers fixed by screws. The fingers have holes for housing the screws. The method for repairing the rotor includes removing the screws and support blocks, drilling the holes to increase the diameter thereof, providing plugs into the holes.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: January 29, 2019
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Thomas Opderbecke, Kornelia Weidemann, Simon Baldasera, Sanjiv Kumar Mishra, Simon Malcolm Potter, Markus Noe
  • Patent number: 10181765
    Abstract: An electric machine for a vehicle may include a stator, a rotor, and a coolant channel assembly. The stator may include a core defining a cavity and windings disposed within and partially protruding out of the cavity. The rotor may be sized for disposal within the cavity adjacent the windings. The coolant channel assembly may include a channel wound about the partially protruding windings such that the channel and windings are in thermal communication with one another. The coolant channel may define a circular or rectangular cross-section. The coolant channel may define fins therein to induce turbulence into coolant flowing therethrough. The coolant channel and the windings may be arranged such that the coolant channel assembly directly contacts the windings. The coolant channel assembly may be wound such that a portion of the coolant channel assembly is partially disposed between the plurality of base portions.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: January 15, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Prasad Dev Hanumalagutti, Michael W. Degner
  • Patent number: 10135321
    Abstract: An electric motor assembly including a housing, an electric motor supported in a motor compartment of the housing, an encoder operatively coupled to the electric motor and supported in an encoder compartment of the housing, and a heat sink surrounding at least a portion of the encoder, the heat sink in thermal contact with an end cap of the housing at least partially defining the encoder compartment, whereby the heat sink is adapted to absorb heat from the encoder and conduct heat to the end cap.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 20, 2018
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Steven Herrmann, Chetan Chandrasekara
  • Patent number: 10128717
    Abstract: The present disclosure relates to a ring for a rotor of an electric machine as a support for a retaining ring and for cooling coils of the rotor. It is an object of the invention to provide measures for cooling coils of a rotor of an electric machine. Disclosed is a ring for an electric machine, the ring is connected between a retaining ring and coils wound around a rotor, whereas the ring is fabricated from a non-conductive material.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 13, 2018
    Assignee: General Electric Technology GmbH
    Inventors: Sayantan Bhar, Janusz Bialik, Henrik Overstam, Omed Rawandi
  • Patent number: 10027198
    Abstract: Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: July 17, 2018
    Assignee: Nidec Motor Corporation
    Inventors: Philip S. Johnson, Paul G. Michaels
  • Patent number: 9847683
    Abstract: Disclosed are a hairpin connecting device and a hairpin winding motor including the same. An exemplary embodiment of the present invention may provide a hairpin connecting device including: a cover part shaped like a circular loop fastened to a leg side of a stator core; and a plurality of connection caps arranged inside the cover part in a circumference direction and configured to electrically connect connected ends of respective hairpins exposed to the leg side.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 19, 2017
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Dae Sung Jung
  • Patent number: 9847702
    Abstract: A method for sealing fluid cooled conduits in-situ for a generator is provided. The fluid or liquid cooled conduits are located external to a stator of the generator and substantially outward of stator bars. The method includes draining coolant from the fluid cooled conduits, and drying interior surfaces of the fluid cooled conduits. In inserting step inserts a borescope and a sealant applicator through an opening in one of the fluid cooled conduits. A locating step locates a brazed joint in the fluid cooled conduit, and a positioning step positions the borescope and the sealant applicator near the brazed joint. An applying step applies a sealant to the inside of the fluid cooled conduit at the brazed joint A viewing step may be used to view the brazed joint with the borescope to confirm that the applying step has been successful.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: December 19, 2017
    Assignee: General Electric Company
    Inventors: James Oldham Lambert, Eric Lawrence Schilf
  • Patent number: 9660495
    Abstract: A stator for an electric motor for use at very high temperatures of up to 550° C. is provided, comprising a stator winding with an axis and with several winding wire ends which are passed out at a front end of the stator winding. The stator further comprises a stator winding interconnection with several ring conductors which are arranged at the front end of the stator winding coaxially to same and are axially spaced apart from each other. The ring conductors serve the electrical contacting of the winding wire ends. It is provided that an electrically insulating distance ring is respectively provided between axially successive ring conductors, wherein the ring conductors and the distance rings are alternately stacked.
    Type: Grant
    Filed: March 23, 2014
    Date of Patent: May 23, 2017
    Assignee: MAXON MOTOR AG
    Inventors: Yaaqub Brzuska, Kornelia Kunstmann, Pia Aschwanden, Tobias Hänni, Bernd Hage, Bernd Fürderer
  • Patent number: 9647504
    Abstract: Electrically insulating material so foldable as to form an interphase insulator so configured as to be inserted in the slots of the stator or the rotor of an electric machine to prevent separate coils inserted in the same slot to be in direct contact with one another and to prevent the coil heads of different coils to be in direct contact is described herein. The interphase insulator may be so folded that the coil heads are properly insulated from one another.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 9, 2017
    Assignee: TM4 Inc.
    Inventor: Gyula Bihari
  • Patent number: 9641038
    Abstract: An electrical machine is provided. The electrical machine includes a stator having at least one winding, and a mechanical assembly acting on the winding for providing a radial force at the winding for controlling a stiffness of the winding.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: May 2, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Mukesh Kumar Jaluthariya, Neelima Tailor
  • Patent number: 9634535
    Abstract: An electric submersible pump motor can include a housing; and a hermetically sealed cavity defined at least in part by the housing that includes at least one material susceptible to hydrolysis, and a polymeric material that includes epitaxial co-crystals of perfluoroalkoxy (PFA) and polytetrafluoroethylene (PTFE). Various other apparatuses, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: April 25, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Jason Holzmueller, William Goertzen, Melissa Ver Meer, Gregory H. Manke, Patrick Z. Ma
  • Patent number: 9608488
    Abstract: The present invention relates to a stator arrangement for an electric machine, comprising a stator laminate stack, comprising a multiplicity of stator windings, comprising a contact-making device which has at least one contact conductor, which is designed to electrically connect at least two stator windings to one another, wherein a respective contact conductor has at least one connecting lug for electrically coupling an external connection unit to the contact-making device and at least one hook for receiving a winding wire end of a stator winding connected electrically in each case to the contact conductor. The present invention relates to an electric machine comprising such a stator arrangement.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: March 28, 2017
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wūrzburg
    Inventors: Kevin Koch, Veronique Dillmann, Christian Martin
  • Patent number: 9601971
    Abstract: A cooling device for cooling an air-permeable winding braid of an electrical machine is provided. The cooling device includes a baffle and a fan, which is arranged for blowing a stream of cooling air substantially perpendicularly onto a first surface portion of one side of the wind braid, wherein, in the region of a second surface portion of the side of the winding braid, arranged alongside the first surface portion, the baffle is arranged substantially parallel to and that a distance from the surface of the second surface portion such that a partial stream of the stream of cooling air is formed in the channel that is formed by the baffle and the second surface portion, and so, on the side of the winding braid that is opposite from the first-mentioned side, the other partial stream of the stream of cooling air, penetrating the winding braid, flows away from the winding braid without any return flow.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: March 21, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Marcus Banda, Zhiyun Chen, Olaf Michelsson
  • Patent number: 9543807
    Abstract: An electric motor includes a motor housing (1) and a further housing (6), in which electrical and/or electronic components (7) are arranged. A fluid-leading channel circuit is provided for cooling these components (7) and conductively connects the inside of the motor hosing (1) to the inside of the further housing (6).
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: January 10, 2017
    Assignee: GRUNDFOS MANAGEMENT A/S
    Inventors: Niels Erik Linnemann Nielsen, John B. Jacobsen
  • Patent number: 9537375
    Abstract: An electric machine includes a housing, a stator core positioned within the housing, a wire wound about the stator core to form a plurality of end-turns that extend from an end of the stator core, and a thermal conductor positioned between the plurality of end-turns and the housing. The thermal conductor includes a substrate and a thermally conductive coating formed on a surface of the substrate. The thermally conductive coating includes a thermally conductive, dielectric material configured to transfer heat from the plurality of end-turns to the substrate.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: January 3, 2017
    Assignee: General Electric Company
    Inventors: Wei Zhang, Xiaomei Fang
  • Patent number: 9537365
    Abstract: A magnet-type generator 1 has a stator 20 having a stator core 21 and a coil 60, and fixed on an engine cover. The stator core has an annular base portion 26 and salient pole portions 27 extended in a radial direction from the annular base portion. The coil is wound around winding frame portions formed on the salient pole portions. Lead wires 64A, 64B, 64C are inserted into through holes 35A, 35B, 35C passing through the stator core and connected with outgoing wires of the coil at one side of the stator core. The stator core has an extension portion 33, which is partly enlarged outwards in a radial direction from an outer periphery of the annular base portion and fills a part of a gap 32 between neighboring salient pole portions. The through holes are provided on an area including the extension portion of the stator core.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: January 3, 2017
    Assignee: Denso Trim Co., Ltd.
    Inventor: Takahiko Hikita
  • Patent number: 9496766
    Abstract: This bowl (10) for an induction motor intended to be housed in the hollow body of a substantially longitudinal actuator for winding/unwinding sheets, screens, blinds or roller shutters, comprises an outer skirt (12) and an inner skirt (13), the outer skirt (12) and the inner skirt (13) defining, between them, a space (14) intended to receive a lead-out of a stator of the induction motor. Moreover, the inner skirt (13) is capable of being deformed in such a way as to restrict the space (14) between the inner skirt (13) and the outer skirt (12) in order to allow the insertion into the inner skirt (13) of means of supporting a rotor assembly.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: November 15, 2016
    Assignee: SOMFY SAS
    Inventor: Adrien Brondex
  • Patent number: 9469956
    Abstract: Systems and methods for drainage management, including a pipe that is cut along a longitudinal section thereof; and a pipe block having a curved section corresponding to a diameter of the cut pipe and including supporting legs. The curved section of the pipe block is configured to support the cut pipe.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 18, 2016
    Inventor: Robert H. Koerner
  • Patent number: 9225218
    Abstract: The winding overhang of the rotor of an electrical machine is subject to strong centrifugal forces during operation, especially when the machines run at high speed. The winding overhang support prevents the production of relative movements between the winding overhang and the rotor base. These movements result in strong mechanical stresses on the winding bars. The winding overhang support includes an inner ring and an outer ring between which the winding bars are arranged in the region of the winding overhang, the outer ring being shrunk on the inner ring and both the outer ring and the inner ring being interspaced from the lamination stack.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: December 29, 2015
    Assignee: Andritz Hydro GmbH
    Inventors: Alfred Lexer, Stefan Helmlinger
  • Patent number: 9154010
    Abstract: An armature includes an insulator mounted on a tooth portion around which a conducting wire is wound. A pair of a first member and a second member, which are combined so as to abut each other, is provided. The first member includes a first end wall which covers an upper side end in the axial direction of the tooth portion and a pair of first side walls which partially cover both side portions of the tooth portion. A first overlap portion is provided on a tip portion of the first side wall. A plurality of ribs extending so as to be parallel or substantially parallel to the winding direction of the conducting wire is disposed on an outer surface of the first overlap portion.
    Type: Grant
    Filed: December 17, 2011
    Date of Patent: October 6, 2015
    Assignee: Nidec Corporation
    Inventor: Tomoyoshi Yokogawa
  • Patent number: 9118233
    Abstract: The electric machine has a stator with windings connected to phase connections. An insulating cap protects the reciprocally connected portions of the phase connections and windings. The insulating cap has a box-shaped body with an opening for the introduction of a winding within it. The body defines a seat housing the phase connection. The seat is formed in one piece with the body.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: August 25, 2015
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Francesco Stallone, Grzegorz Kunka, Daniel Hediger
  • Patent number: 9041262
    Abstract: A stator coil includes first to fourth in-slot portions and first and second turn portions. Both the first and third in-slot portions are received in one slot of a stator core, while both the second and fourth in-slot portions are received in another slot. The first and second turn portions both protrude from an axial end face of the stator core and respectively connect the pair of the first and second in-slot portions and the pair of the third and fourth in-slot portions. The second turn portion is located inside the first turn portion. When viewed along an axial direction of the stator core, the first and second turn portions extend so as to cross each other with a reference line C interposed therebetween; the reference line C is defined to extend along a circumferential direction of the stator core through an intersection between the first and second turn portions.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: May 26, 2015
    Assignee: DENSO CORPORATION
    Inventors: Tomoyuki Okamura, Norio Kamegawa
  • Patent number: 9018822
    Abstract: A stator for a rotary electric machine includes: a stator core in a cylindrical shape with plural slots formed at an inner circumferential surface; plural coil segments inserted in the slots from one end surface side of the stator core; and plural coil end plates electrically connected with the coil segments on another end surface side of the stator core, wherein the coil segments respectively include: one leg portion; another leg portion; and a curved portion that is continuously formed between the one leg portion and the other leg portion, wherein the coil end plates respectively include: a plate portion in a flat plate shape; and a pair of extended portions, and wherein end portions of the leg portions of the coil segments are connected to the extended portions. It is possible to improve assembility and attain downsizing by reducing the volume of coil end portions for the stator.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: April 28, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takeomi Okimitsu, Koichi Oku
  • Patent number: 9000630
    Abstract: Provided is a motor including a rotor, a stator having a stator core and a coil, a stator frame, an end cover, first and second bearings, and a heat radiating resin in the stator frame. The coil includes first and second end portions projecting oppositely and axially. The stator frame includes a peripheral wall and an end wall, whose respective central parts form first and second boss portions holding the first and second bearings respectively. The heat radiating resin includes a first resin part covering the first end portion and closely contacting an inner surface of the stator frame, and a second resin part covering the second end portion and separating from an outer peripheral surface of the second boss portion. The first resin part has a portion between the first end portion and the first boss portion, the portion having a greater thickness than that of the other.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: April 7, 2015
    Assignees: Kobe Steel, Ltd., Kobelco Construction Machinery Co., Ltd.
    Inventors: Akira Tsutsui, Seiji Saiki, Kazushige Koiwai, Akira Nakazumi
  • Patent number: 8981606
    Abstract: A connector assembly that mechanically and electrically connects respective ends of first and second stator coil sections includes first and second clip assemblies, first and second connector bar assemblies, and first and second coupling structures. The first clip assembly includes first and second clip members and the second clip includes third and fourth clip members. The first and second connector bar assemblies are coupled to the first and third clip members and to the second and fourth clip members, respectively, to structurally couple the first stator coil section to the second stator coil section. The first clip member, the first connector bar assembly, and the third clip member create a first path for electric current between the stator coil sections, and the second clip member, the second connector bar assembly, and the fourth clip member create a second path for electric current between the stator coil sections.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: March 17, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Travis J. Vitello, Mukesh Kumar Jaluthariya
  • Patent number: 8963399
    Abstract: An induction machine short circuit stop is interposed between a brace and a machine component, such as a generator building bolt, in order to limit component motion during a short circuit event. The stop is a block of resilient non-conductive material that is oriented proximal the machine component at a desired spaced gap. Gap dimensions may be modified by use of different height stop blocks and/or shims. The stop is affixed to the brace by straps, cordage or fasteners, such as threaded studs. The stop is suitable for retrofitting existing induction machines in the field or in refurbishing service centers.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: February 24, 2015
    Assignee: Siemens Energy, Inc.
    Inventors: Avinash M. Tekawade, David F. Yurko, Domingo J. Fumero, Sean Woosley
  • Patent number: 8946963
    Abstract: A polyphase stator for an internally ventilated rotating electrical machine comprises a body (14) provided with slots and carrying a coil (12) having at least one winding per phase. A plurality of pairs of lateral branches are mounted in a slot of the body (14). A plurality of connecting heads (50 to 55) extend outside the body (14) so as to form a first lead-out (42) and interconnect each pair of lateral branches. A plurality of coupling feet (150 to 155) are offset circumferentially with respect to the plurality of connecting heads and extend outside the body (14) so as to form a second lead-out (43) and interconnect each pair of lateral branches. One of the pluralities has a generally pointed shape and has an axial length of between 15 and 20 mm. The stator is used with an alternator or alternator-stator for a motor vehicle. An internally ventilated electrical machine is equipped with the stator.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: February 3, 2015
    Assignee: Valeo Equipments Electriques Moteur
    Inventors: Xavier Dunesme, Jerome Fournier, Nicolas Langlard, Pierre Faverolle
  • Publication number: 20150008787
    Abstract: Embodiments of the invention relate generally to electromagnetic devices and, more particularly, to the compression of stator core laminations using wire rope members and to stator cores and electromagnetic devices employing such wire rope members. In one embodiment, the invention includes: affixing a first end of a wire rope member to a first flange plate disposed adjacent a first end of a plurality of stator laminations; affixing a second end of the wire rope member to a second flange plate disposed adjacent a second end of the plurality of stator laminations; tensioning at least one of the first end or the second end of the wire rope member against at least one of the first flange plate and the second flange plate to exert a compressive force against the first flange plate, the second flange plate, and the plurality of stator laminations.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 8, 2015
    Inventors: Anand Shankar Tanavde, Christopher Anthony Kaminski, Lakshminarayana Kanakamedala
  • Patent number: 8922088
    Abstract: Provided is a rotor for a dynamoelectric machine. The rotor includes winding elements arranged in axially extending grooves of a rotor body, a winding head arranged axially adjacent to the rotor body, and a winding head carrier, connected to the winding head by means of tension bolts, all arranged in such a way that reliable securing of the winding head against radial expansion due to centrifugal forces is ensured, while resulting in a compact and cost-effective configuration as well as sufficient cooling.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: December 30, 2014
    Assignee: Voith Patent GmbH
    Inventors: Holger Henning, Philipp Eilebrecht, Stefan Veser, Thomas Hildinger
  • Patent number: 8912705
    Abstract: Method and apparatus for insulating induction machine conductive connectors by sliding a closed-end insulating sheath over the connector. The sheath is circumferentially secured to the conductive connector with a biasing element, such as an elastomeric stretchable fabric, stretch tape or heat shrink material. Additional insulative materials as well as resin curing catalysts or accelerants may be added to the sheath.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: December 16, 2014
    Assignee: Siemens Industry, Inc.
    Inventor: Nicholas G. Lang
  • Patent number: 8907539
    Abstract: A retaining ring configuration system is disclosed. In one embodiment, the system includes a set of adjustment apparatuses configured to contact a portion of a generator rotor, each of the set of adjustment apparatuses including: a base member for contacting the portion of the generator rotor; an adjustment member for adjusting a position of the generator retaining ring relative to the generator rotor; and an actuation member coupled to the base member and operably attached to the adjustment member, the actuation member for actuating movement of the adjustment member to adjust the position of the generator retaining ring relative to the generator rotor.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: December 9, 2014
    Assignee: General Electric Company
    Inventors: Yu Wang, Jordan Christopher Baker, John Matthew Sassatelli, John Thomas Sterle
  • Patent number: 8884484
    Abstract: The invention relates to a DC motor 1 comprising a cylindrical coil carrier 7; 17 comprising wire guide element 9; 10, 12 for guiding a first winding wire 80; 180 and a second winding wire 81; 181 of an air-gap winding on both side end sections, wherein the first winding wire 80; 180 and the second winding wire 81; 181 each comprise rectangular winding segments 20; 120, wherein the rectangular winding segments 20; 120 of the second winding wire 81; 181 are disposed overlapping on the cylindrical coil carrier 7; 17 and the wire guide elements 9; 10, 12 are designed for guiding the first winding wire 80; 180 and the second winding wire 81; 181 past each other.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: November 11, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Krauth, Tilo Koenig
  • Publication number: 20140319962
    Abstract: An insulated cover (10) for insulating at least two electrically-connected stator bar winding ends (18, 20) in a dynamoelectric machine. The cover (10) comprises a first member (12) for mating with a second member (14), a first interlocking structure (52) on a surface of the first member (12) and a second interlocking structure (50) on a surface of the second member (14). When the cover (10) is installed to insulate the bar winding ends (18, 20) by placing the first (12) and second (14) members in contact, the first (52) and second (50) interlocking structures positively lock to prevent relative displacement of the first (12) and second (14) members.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 30, 2014
    Inventors: David Thomas Allen, Travis John Vitello
  • Patent number: 8872404
    Abstract: A dynamoelectric machine includes a rotor body, an annular winding head which is arranged axially next to the rotor body and coaxially in relation thereto, a support ring which is arranged radially inside the winding head and coaxially in relation thereto, the winding head and the support ring are torsion-proof with the rotor body, the winding head and the support ring are clamped together in the radial direction by tension rods which are guided through radial boreholes in the winding heads and in the support ring, where radially inner ends of the tension rods engage on the support ring and radially outer ends of the tension rods engage on bearing blocks which rest on the winding head, and the radially inner ends of the tension rods and the radially outer ends of the tension rods are mounted by the bearing blocks having a spherical surface.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: October 28, 2014
    Assignee: Voith Patent GmbH
    Inventors: Holger Henning, Philipp Eilebrecht, Stefan Veser, Thomas Hildinger