Slot Liners Patents (Class 310/215)
  • Patent number: 11329536
    Abstract: A method of manufacturing a winding assembly for an electrical machine, the method comprising: selecting (S1) a mathematical function defining the spatial separation between adjacent turns of a winding path, the mathematical function dependent on one or more parameters of the electrical machine and/or of the anticipated operating environment of the electrical machine; forming (S2), by three-dimensional, 3D, printing, an electrically insulating body comprising a channel defining the winding path in accordance with said function, the channel having an inlet and an outlet; heating (S3) the electrically insulating body to a temperature above the melting point of an electrically conducting material; flowing (S4) the electrically conducting material through the inlet to the outlet to fill the channel; and cooling the electrically insulating body to solidify the electrically conducting material within the channel, thereby forming said winding assembly.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: May 10, 2022
    Inventors: Jameel B. Khan, Alexis Lambourne, Alexander C. Smith
  • Patent number: 11323002
    Abstract: A rotary electric machine includes magnetic poles to which a coil is attached. A connection portion between a conductive member and a coil end of the coil is arranged in an inter-pole gap between the magnetic poles. The rotary electric machine may include a rotor and a stator. The magnetic poles may be magnetic poles of the stator.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 3, 2022
    Assignee: DENSO CORPORATION
    Inventors: Masayuki Echizen, Seigo Shinoda
  • Patent number: 11309762
    Abstract: Various embodiments relate to a stator having an improved structure of an insulator coupled to teeth and to a motor having the stator. The stator includes an insulator. The insulator includes: a coil-wound portion surrounding an outer circumferential face of a tooth; and both side walls respectively extending from both sides of the coil-wound portion, wherein the both side walls and the coil-wound portion defines a space receiving the coil, wherein one of the both side walls includes a coupling portion, wherein the insulator are divided into two parts and the two parts are coupled to each other via the coupling portion such that the tooth is inserted into and coupled to the insulator.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: April 19, 2022
    Assignee: LG Electronics Inc.
    Inventors: Jin Hong, Yongdae Kim, Kwangyong Jang
  • Patent number: 11283336
    Abstract: An insulating paper (40) is inserted into a slot (13) of a stator core (10) of a rotary electric machine and insulates between the stator core (10) and a stator coil (20) disposed in the slot (13). An insulating member (40) comprises a sheet-shaped insulating base material (50), and a first adhesive layer (60A) which is provided on a first surface (50a) of the insulating base material (50) and which is formed of an adhesive. The first adhesive layer (60A) is provided with an exposed section (61) which extends in the axial direction of the stator core (10) and in which the insulating base material (50) is exposed from the adhesive.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: March 22, 2022
    Assignees: HONDA MOTOR CO., LTD., TERAOKA SEISAKUSHO CO., LTD.
    Inventors: Tadashi Yamaguchi, Ming Lei, Shohei Ogino
  • Patent number: 11270807
    Abstract: A betavoltaic power source. The power source comprises a source of beta particles and a plurality of regions each for collecting the beta particles and for generating electron hole pairs responsive to the beta particle flux. A first set of the plurality of regions is disposed proximate a first surface of the source and a second set of the plurality of regions is disposed proximate a second surface. The first and second surface in opposing relation. A secondary power source is charged by a current developed by the electron hole pairs.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: March 8, 2022
    Assignee: CITY LABS, INC.
    Inventor: Peter Cabauy
  • Patent number: 11264857
    Abstract: A stator for an electric motor, including a stator ring with slots arranged on the inner or the outer circumference, wherein each slot accommodates a plurality of conductors extending along the slot and having a rectangular cross-section, each of which is covered by an insulation layer, wherein to form a channel through which a coolant can flow, the insulation layer of at least one of the conductors has at least one recess extending along the conductor.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 1, 2022
    Assignee: AUDI AG
    Inventor: Philipp Uhlmann
  • Patent number: 11223253
    Abstract: A stator for a rotating electrical machine includes a stator coil, a stator iron core having slots into which the stator coil is mounted, and insulating slot liners inserted into the slots, wherein conductive wire materials constituting the stator coil are inserted into the slot liners, and sections of the slot liners protruding from the slots are each provided with a bellows portion.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: January 11, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kenichi Nakayama, Naoki Nishikawa
  • Patent number: 11218058
    Abstract: An electric machine includes a winding yoke defining a plurality of winding slots between circumferentially spaced apart teeth. A respective winding separator is mounted within each of the winding slots. The winding separator is mounted to a keying feature that extends from the winding yoke into the winding slot. The winding yoke can be a laminated structure, wherein the teeth and keying features are part of a common laminated structure with the winding yoke. The winding yoke can be a stator, and a rotor can be mounted within the stator for rotary movement relative to the stator.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 4, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Joseph Kenneth Coldwate, Tadashi Sawata
  • Patent number: 11211840
    Abstract: A winding structure of motor stator includes a stator core, two insulation members, an upper cap, a lower cap, and a coil. The two insulation members are disposed on two winding grooves of the stator core respectively. The upper cap and the lower cap are disposed on a top end and a bottom end of the stator core respectively. The coil is wound on the upper cap, the two insulation members, and the lower cap. Stopping pieces facing each other are formed on two sides of each of the upper cap and the lower cap. Each of the stopping pieces is separated from the coil without contact.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: December 28, 2021
    Assignee: LIDASHI INDUSTRY CO., LTD.
    Inventors: Yung-Yu Lin, Ching-Hui Hsu, Jui-Yang Hsu
  • Patent number: 11201520
    Abstract: A drive device includes an electric motor and a gear unit that is driven by the electric motor. The electric motor has a laminated stator core which includes stator windings and is accommodated in a stator housing. The stator housing has recesses that are axially uninterrupted, i.e. in particular in the direction of the rotor shaft axis, and the stator housing is surrounded, especially radially surrounded, by a housing of the drive device, in particular a tubular housing and/or a cup-shaped housing, and the housing is set apart from the stator housing, in particular such that an especially circulating airflow is able to be provided within the housing, the recesses in particular guiding the airflow through in the axial direction, and the airflow being returned in the opposite direction in the set-apart region between the stator housing part and the housing.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: December 14, 2021
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Waldemar Becker, Domenik Hettel, Thomas Rung, Jens Schillinger
  • Patent number: 11190074
    Abstract: An insulating paper (40) is inserted into a slot (13) of a stator core (10) of a rotary electric machine and insulates between the stator core (10) and a stator coil (20) disposed in the slot (13). An insulating member (40) comprises a sheet-shaped insulating base material (50), and a first adhesive layer (60A) which is provided on a first surface (50a) of the insulating base material (50) and which is formed of an adhesive. The first adhesive layer (60A) is provided with an exposed section (61) which extends in the axial direction of the stator core (10) and in which the insulating base material (50) is exposed from the adhesive.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: November 30, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tadashi Yamaguchi, Ming Lei, Shohei Ogino
  • Patent number: 11171532
    Abstract: A wind portion of an insulator includes a side surface at the same side as, in a circumferential direction, a second guide surface which is orthogonal to a holding surface capable of holding a coil and which guides a winding in an inner-diameter direction, and an end surface orthogonal to the side surface. A first corner formed at a boundary between the holding surface and the side surface as viewed in the axial direction of a motor stator is located at a guiding-direction side by a first guide surface relative to a second corner formed at a boundary between the first guide surface and the second guide surface. The winding is extended from the second corner to the first corner.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: November 9, 2021
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Satoshi Watanabe, Daisuke Kiryu, Masahiko Hoshino
  • Patent number: 11165304
    Abstract: Winding (12) of an electrical machine, having a plurality of winding segments (13), wherein each winding segment (13) respectively has at least two electrically conductive, hairpin-shaped or U-shaped or rod-shaped conductor elements (15), wherein the conductor elements (15) of each winding segment (13) are surrounded, in a central section thereof, by electrically insulating insulation (16) while leaving ends of the conductor elements free, and wherein each conductor element (15) of each winding segment (13) is connected in an electrically conductive manner to a conductor element (15) of another winding segment at the ends. Projections (17) which are made from an electrically insulating material and are used as spacers are applied to sections of the insulation (16) of the conductor elements (15) and bound sections of the coolant channels (18) for directly cooling the conductor elements (15).
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: November 2, 2021
    Inventors: Maximilian Kneidl, Johannes Stoll
  • Patent number: 11165295
    Abstract: A rotor lamination assembly is formed with a central hole wherein a central axis goes through the central hole. The rotor lamination assembly is further formed with an even number of mounting holes arranged between a rim of the central hole and an outer rim of the rotor lamination assembly. The outer rim of the rotor lamination assembly has a projection on a plane substantially perpendicular to the central axis. The projection includes an even number of base curve edges, an even number of protruding curve edges, and connecting curve edges. Each protruding curve edge is arranged between two adjacent base curve edges in a circumferential direction of the central axis. The protruding curve edges and the base curve edges are connected with each other through the connecting curve edges. Every two mounting holes which are arranged symmetrically constitute a mounting hole group.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: November 2, 2021
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Shibo Chen, Qian Xu
  • Patent number: 11146137
    Abstract: A coil insulation structure for a rotating machine provided in the present invention is based on a conventional insulation technology. In particular, tooth portions of an iron core in which coil windings are inserted have a straight tooth structure without a shoe portion, and a component with an insulation effect is further added at a position of an opening of a groove in which the coil winding is located, so that an insulation effect is improved, and at the same time an added insulation component is used to ensure a thickness and a size of an inner layer located at a position adjacent to an air gap of a motor when the coil winding is encapsulated, thereby improving product quality.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 12, 2021
    Assignee: HIWIN MIKROSYSTEM CORP.
    Inventors: Chia-Siang Lien, Cheng-Hsun Pan, Ming-Chih Lai
  • Patent number: 11108293
    Abstract: A stator includes a stator core and a winding wound around the stator core in wave winding. The winding includes an assembly of a plurality of covered wires, and an outer cover film that surrounds and covers the assembly and contains thermosetting resin. Each of the covered wires includes a conductor and an insulating film surrounding and covering the conductor. Each of the covered wires has a wire width of 1.5 mm or less.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: August 31, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Atsushi Ishikawa, Koji Yabe
  • Patent number: 11081923
    Abstract: The present disclosure relates to electrical machines. The teachings thereof may be embodied in a corona shielding system for an electrical machine. For example, a corona shielding system may include: an outer corona shield and an overhang corona shielding. The outer corona shielding and the overhang corona shielding may comprise a first corona shielding material having a nonlinear field strength-dependent electrical resistance.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: August 3, 2021
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bernhard Klaussner, Jiri Lang, Steffen Lang, Alexander Litinsky, Guido Schmidt, Christian Schulz-Drost, Klaus Schaefer, Christian Staubach
  • Patent number: 11075559
    Abstract: A stator of a rotating electric machine includes a stator core provided with a plurality of slots along a circumferential direction, coils of a plurality of phases distributedly wound around the stator core via the plurality of slots, and an insulating paper disposed between the slot and the coil. The insulating paper has an adhesive portion which fixes the coil to the stator core and a part of the coil of each phase is fixed to the stator core by the adhesive portion.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: July 27, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tadashi Yamaguchi, Ryutaro Kato, Tomohiro Kota, Yusuke Kawano, Takashi Sugawara, Kazuyuki Ohta, Tadamichi Sasaki, Taisuke Maruyama
  • Patent number: 11043869
    Abstract: A stator assembly includes a stator core, an insulated wire frame, a coil, and an annular insulation structure. The stator core includes a magnetic yoke portion and a radial tooth portion, and the radial tooth portion extends from the magnetic yoke portion. The insulated wire frame disposed outside the radial tooth portion of the stator core has a winding slot. The coil is wound in the winding slot of the insulated wire frame annularly. The annular insulation structure is formed by injection moulding and wraps an area where the coil is exposed out of the insulated wire frame, and the coil is packaged between the insulated wire frame and the annular insulation structure.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: June 22, 2021
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventor: Wei-Min Hsu
  • Patent number: 11005314
    Abstract: The present invention relates to a stator core for improving the fixing properties of a magnet wire, and a motor in which the same is applied. Provided is a stator core which comprises a protrusion pattern part for fixing the distal end portion of a magnet wire, and thus eliminates a process of fixing the wire using a separate member during a wiring process, thereby improving processability and inhibiting an insulating film of the magnet wire from being damaged by an external force such as vibration.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: May 11, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Bong Bae Kong
  • Patent number: 10971959
    Abstract: This invention relates to a stator for an axial flux electromagnetic machine, with the stator forming a ring (1) having two substantially circular faces (1a, 1b) connected by a thickness comprising windings (3) regularly distributed in the ring (1). Each winding (3) is carried by a unit portion (4) having a core (5) around which the winding (3) is wound. The unit portions (4) are arranged concentrically edge-to-edge with respect to one another and have securing means (12, 12a, 14) with a support member (6) which is part or not of a casing housing the ring (1) carried either by axial and lateral faces of each unit portion (4) edge-to-edge or by at least one upper or lower face of with each unit portion being part of a substantially circular face.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: April 6, 2021
    Assignee: WHYLOT SAS
    Inventors: Vasile Mihaila, Serghei Savin, Huguette Tiegna, Vincent Ploix, Romain Ravaud
  • Patent number: 10965192
    Abstract: A rotary electric machine includes a stator, a rotor, a plurality of coils and a plurality of spacers. The stator has a stator body and a plurality of stator poles. Each stator pole has a pair of oppositely facing side surfaces. The rotor is positioned within the stator and has a plurality of rotor poles. One coil is disposed about each stator pole. The spacers are disposed between one coil and at least one of an inner circumferential surface of the stator body and the side surfaces of the stator body to define a fluid flow opening between the coil and the stator.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: March 30, 2021
    Assignee: Caterpillar Inc.
    Inventors: Carlos E. Nino Baron, Christopher J. Watson
  • Patent number: 10910901
    Abstract: A wound stator for a dynamo-electric machine comprising a stator stack having a unitary cylindrical yoke and a plurality of circumferentially spaced, radially inward extending stator teeth defining stator slots therebetween. A winding is formed by a strand of wire forming turns around each stator tooth, each winding including a first lead end extending from a stator slot on a first side of a respective stator tooth and a second lead end extending from a stator slot on a second side of the respective stator tooth. An insulation system is provided including an insulating structure septum extending through each stator slot between windings located on two adjacent stator teeth, the turns of each winding located between a respective stator tooth and a first surface of the insulating structure septum engaged with the winding.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: February 2, 2021
    Assignee: Globe Motors, Inc.
    Inventors: Jerry C. Burch, James W. Moran, Allen Abel
  • Patent number: 10897173
    Abstract: There is provided an insulation paper to be disposed between a slot formed in a stator core and a coil inserted into the slot. A crease is provided in advance at a folding position where the insulation paper is to be folded when disposed in the slot. The crease is provided in an area of the insulation paper excluding both end portions thereof.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: January 19, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Tadashi Yamaguchi
  • Patent number: 10892669
    Abstract: A rotor core includes a laminated iron core in which an electrical steel sheets are laminated, a magnet slot being provided in the laminated iron core and extending in a lamination direction of the laminated iron core, and a magnet that is fixed to an inside of the magnet slot through resin. The resin includes a filler, and the filler has a length in a longitudinal direction larger than a length in a width direction. The filler is oriented such that the longitudinal direction is directed towards a surface of the magnet.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: January 12, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Kinpara
  • Patent number: 10868448
    Abstract: A rotating electrical machine capable of achieving a high torque and low noise is provided. In a stator for a rotating electrical machine in which six or more slot conductors are inserted through one slot, the stator for a rotating electrical machine straddles slots such that a slot pitch of a jumper wire connecting round windings having different positions in a radial direction has at least two kinds or more different slot pitches.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: December 15, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yasuyuki Saito, Yuji Kano, Takayuki Koizumi
  • Patent number: 10862362
    Abstract: The present disclosure relates to electrical machines. The teachings thereof may be embodied in a corona shielding system, especially for an electrical machine, e.g., a high-voltage machine, such as a generator for generation of electrical energy, an electric motor, or another piece of electrical equipment having a relatively high rated voltage, e.g., a transformer or a bushing or a cable. A corona shielding system may include: a polymeric matrix; and filler particles comprising mica surrounded by a layer of at least one ceramic metal oxide. The filler particles may be distributed throughout the polymeric matrix.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: December 8, 2020
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bernhard Klaussner, Jiri Lang, Steffen Lang, Alexander Litinsky, Guido Schmidt, Christian Schulz-Drost, Klaus Schaefer, Christian Staubach
  • Patent number: 10833551
    Abstract: A stator of a rotating electrical machine that can realize productivity growth, compared with a conventional technique is provided. A stator of a rotating electrical machine includes a slot; a plurality of coils disposed within the slot; and an insulator disposed around the coils within the slot. The insulator has an outer peripheral portion that surrounds the plurality of coils; and a bent portion that extends from the outer peripheral portion between the coils and that is folded back on a tip end.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: November 10, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shinji Yamazaki, Kenichi Nakayama
  • Patent number: 10778057
    Abstract: An electric power tool includes a brushless motor as a driving source. The brushless motor includes a stator and a rotor. The stator includes coils wound around in three phases. In a wire winding method of the coil of the stator, when the number of slots per phase is N, the number of series of the coils per phase is A, and the number of parallel of the coils per phase is B, a relation of N=A×B (note that, N is a natural number of 3 or more and 10 or less, A is a natural number of 1 or more, and B is a natural number of 2 or more) is satisfied.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 15, 2020
    Assignee: MAKITA CORPORATION
    Inventor: Kiyoshi Aoyama
  • Patent number: 10727713
    Abstract: A rotary electric machine according to the present invention includes: a stator including: a stator core; and a stator winding that is mounted to the stator core, and into which a varnish is impregnated, the stator being held by a housing in a state in which housing interfitting surfaces on two axial end surfaces of a core back portion are clamped by the housing from two axial ends, wherein a varnish leakage stopping portion is formed radially inside the housing interfitting surfaces on two axial end surfaces of the stator core so as to interrupt flow pathways of the varnish from a radially inner side onto the housing interfitting surfaces.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: July 28, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuya Hasegawa, Mitsuyasu Okamoto
  • Patent number: 10680482
    Abstract: A stator includes a plurality of lead wires extending upward from a coil and a guide member supporting the lead wire above the coil. The guide member is an insulating body. The guide member includes a lower plate, an inner wall, and an upper plate. The lower plate spreads annularly around a central axis. The inner wall extends upward from an inner circumference of the lower plate. The upper plate extends from the inner wall to a radial outside. A single lead wire accommodation space exists on an upper side of the lower plate, a lower side of the upper plate, and a radial outside of the inner wall. The plurality of lead wires are circumferentially disposed along the inner wall in the lead wire accommodation space.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: June 9, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Toshiya Okamoto, Shota Kawashima, Masato Aono, Takayuki Migita
  • Patent number: 10673294
    Abstract: The present disclosure relates to electrical machines. The teachings thereof may be embodied in a corona shielding system, especially an outer corona shielding system, for an electrical machine. For example, a corona shielding system may include: a polymeric matrix; particles disposed in the matrix, including a mica-coated core and a layer of metal oxide disposed on the core; and a surface functionalization material disposed on a surface of the particles for binding to the matrix.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: June 2, 2020
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bernhard Klaussner, Jiri Lang, Steffen Lang, Alexander Litinsky, Guido Schmidt, Christian Schulz-Drost, Klaus Schaefer, Christian Staubach
  • Patent number: 10658884
    Abstract: A stator having a structure in which an insulating paper is easily inserted into a slot and a method for manufacturing the same are provided. The stator includes a stator core (21) alternately having teeth (32) and slots (34) in a circumferential direction, a coil (33) installed at the stator core (21), and an insulating paper (60) provided around the coil (33) while being accommodated in the slot (34) and having a folded portion (64) in a lengthwise direction of the slot (34).
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: May 19, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventor: Satoshi Honjo
  • Patent number: 10447098
    Abstract: A rotating electrical machine includes: a rotor core in which a slot passing therethrough is provided; a rotor winding which coil end portion is extended on the axially outer side than the core end face of the rotor core; a U-shaped channel which is arranged on the slot of the rotor core, is touched to come into contact with a bottom portion of the rotor winding, and is axially extended to be projected on the axially outer side than the core end face of the rotor core; a slot cell which insulates the rotor winding and the U-shaped channel from the rotor core; and an interposed piece arranged between the rotor windings at a portion more projected than the core end face of the rotor core. The projected end face of the U-shaped channel is arranged on the axially inner side than the projected end face of the interposed piece.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: October 15, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yosuke Uchida, Naoki Yamamoto
  • Patent number: 10439476
    Abstract: A cooling structure for a rotating electric machine includes a stator, a plurality of refrigerant supply ports, and a refrigerant supply passage. The stator includes a stator core, an insulating member, and a plurality of coils. Each of the plurality of coils includes a corner portion having an arc shape when viewed in a radial direction. The plurality of refrigerant supply ports are arranged at a distance from the plurality of coils in a rotational axis direction. Each of the plurality of refrigerant supply ports is arranged at a position opposite to the corner portion located at a vertically upper side, on both sides of an imaginary vertical plane.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: October 8, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Tetsuhiro Tsuchie
  • Patent number: 10374495
    Abstract: A method releases rotor poles of a large electrical machine from the rotor hub, which in the fitted state is located within the stator. In one method step, at least one device is introduced into the air gap between the sector and a rotor pole to be released. The device has a carrier plate and at least one cushion that can be filled with gas and is attached to the carrier plate. In a following method step, the cushions belonging to the device are filled with gas under pressure, the pressure being successively increased until the pole to be released has come away, and in that, in a following method step, the at least one device is removed from the air gap. In a further step, the released pole is pulled out of the rotor hub.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: August 6, 2019
    Assignee: Voith Patent GmbH
    Inventors: Martin Althoff, Axel Daniel Winter
  • Patent number: 10348150
    Abstract: A stator of a rotating electric machine includes a stator core, a plurality of insulators and a plurality of concentrated winding coils. The stator core includes an annular yoke and a plurality of teeth. The insulators are located along outer peripheral wall surfaces of the teeth. Each of the insulators includes a plurality of first surfaces and a plurality of second surfaces. The second surfaces connect the first surfaces. The coils are fitted on the teeth on which the insulators have been placed from a radially inner side thereof. The first surfaces of each of the insulators are in contact with inner peripheral surfaces of the coil that is placed on the outer periphery of the insulator.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: July 9, 2019
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.
    Inventors: Tomohiko Miyamoto, Takeshi Tsuji, Dai Nakajima
  • Patent number: 10291106
    Abstract: In a stator, a stator winding is wound at a stator core. The stator winding has a section whose shape is rectangular and includes a plurality of conductors electrically connected to each other. Each of the conductors has in-slot portions being accommodated as being stacked in corresponding one of the slots when the winding is wound at the stator core. A fixing member fixes the in-slot portions to each of the slots. The fixing member is composed of an adhesive material charged into each of the slots such that a through-hole is left through each of the slots in the axial direction. Refrigerant is allowed to pass through the through-hole.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: May 14, 2019
    Assignee: DENSO CORPORATION
    Inventor: Yuki Takahashi
  • Patent number: 10291093
    Abstract: A carrier for coils of an electric machine includes a rotation-symmetrical carrier stack having laminations with axial slots which are configured to receive a wire of the coils. Adjacent ones of the slots are separated from one another by a slot wall. The carrier stack has circular end faces and is formed with slot openings for the slots. Electrically insulating material is applied upon at least the slot walls of at least one of the end faces to cover the slot walls at their end face and to electrically insulate the slot walls.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: May 14, 2019
    Assignee: Audi AG
    Inventors: Roman Strasser, Christian Westermaier
  • Patent number: 10211704
    Abstract: A fluid-cooled stator assembly for electrical machines. The stator assembly may include a stator core having a back iron portion and a plurality of stator teeth. Each of the plurality of stator teeth may be separated from each other by at least one of plurality of slots, the slots being structured to receive placement of stator windings. The apparatus also includes a thermal management conduit that is positioned at various locations about the stator assembly, including within or along the back iron portion, stator teeth, slots, and/or among the stator windings. Further, the thermal management conduit may provide insulation for one or more coils of the stator windings. Additionally, at least a portion of the thermal management conduit may be formed from a thermally conductive polymer. The thermal management conduit is configured to convey a thermal management fluid in a heat exchange relationship with the stator assembly.
    Type: Grant
    Filed: August 29, 2015
    Date of Patent: February 19, 2019
    Assignee: ABB Schweiz AG
    Inventors: Darren Tremelling, Steven Hudnut, Heinz Lendenmann
  • Patent number: 10199898
    Abstract: A rotary electric machine includes a stator core, a coil, and a molded portion. The stator core includes an annular yoke and a plurality of teeth. The teeth protrude radially inward from the annular yoke. The coils are wound around the teeth respectively. The coil includes a coil end that protrudes toward an axially outer side from an axially end surface of the stator core. The molded portion is a resin member that covers the coil end. The molded portion includes a first member. The first member includes a communication portion that communicates inside of the molded portion with outside of the molded portion.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: February 5, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, MATSUO INDUSTRIES, INC.
    Inventors: Kentaro Haruno, Haruki Kusamaki, Yuki Yamakawa
  • Patent number: 10158266
    Abstract: A motor includes: a stator core having a plurality of slots; and a winding inserted into the slot as distributed windings of three phases, wherein an interphase insulation sheet is mounted on a coil end of the winding. The interphase insulation sheet includes: planar insulating portions disposed so as to protrude from each of end surfaces of the stator core; a first leg portion and a second leg portion which integrally connect the planar insulating portions at the end surfaces and which are inserted into the slots; insulating convex portions that protrude toward an inner side in a radial direction of the stator core from the planar insulating portion; and a third leg portion that integrally connects the insulating convex portions at the end surfaces and which are inserted into the slot.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: December 18, 2018
    Assignee: FANUC CORPORATION
    Inventor: Hidetoshi Mitsui
  • Patent number: 10103594
    Abstract: A stator of a rotary machine is provided with a first resin molded body, a second resin molded body and third resin molded bodies which electrically insulate a stator core and coils. The first resin molded body is attached to the stator core on a first side of a lamination direction in which steel sheets are laminated and the second resin molded body is attached to the stator core on a second side of the lamination direction. The third resin molded bodies have shapes extending along slot side surfaces and are provided in a state contacting with a predetermined region of the slot side. First slot side portions of the first resin molded body overlaps end portions of a first side of the third resin molded bodies and second slot side portions of the second molded body overlaps end portions of a second side of the third resin molded bodies.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: October 16, 2018
    Assignee: Top Co., Ltd.
    Inventor: Toru Takimoto
  • Patent number: 10008896
    Abstract: A rotary electric machine includes: a rotor rotating about an axis; a stator formed by annularly combining cores having electric wires wound therearound and placed on the outer side of the rotor in a direction orthogonal to the axis; and an insulator including an outer portion placed on the radially outer side of the stator; an inner portion placed on the radially inner side of the stator; a trunk portion coupling the outer portion and the inner portion and having the electric wire wound therearound; a recess portion formed in a portion of the outer portion facing the inner portion to accommodate the electric wire; and a wall placed at the recess portion on the side of the inner portion to partially cover the recess portion. The insulator is attached to one end portion of the cores in a direction parallel with the axis.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: June 26, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shuichi Mori, Koji Iwano, Yuki Kohara
  • Patent number: 9935505
    Abstract: The invention relates to a laminated core, preferably a stator laminated core or a rotor laminated core (2), of an electric machine, in particular an electric fuel pump of a motor vehicle. The laminated core comprises slots (6), each of which has a slot insulation (7), and winding wires of at least one electric winding (10), said wires running in the slots (6). A plastic encapsulation (17) encases the laminated core together with the winding wires which run in the slots (6) at least in some regions. The plastic encapsulation (17) and the slot insulation (7) each consist of a thermoplastic, and the plastic of the slot insulation (7) has a melting point which is equal to, similar to, or lower than the melting point of the plastic of the plastic encapsulation (17) such that the encapsulation process causes the slot insulation (7) to melt, thereby bonding the slot insulation (7) to the plastic encapsulation (17). The invention further relates to a method for producing a laminated core and to an electric machine.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 3, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Oliver Himmel, Ursula Stucke, Joost Nowak, Ingo Buchholz, Alexis Spinner
  • Patent number: 9882445
    Abstract: A phase separator for an electric machine includes a first insulator and a second insulator. The first and second insulators each include a leg portion and an endturn portion connected to the leg portion. The endturn portion is asymmetric with respect to an axis defined by the leg portion such that the second insulator can be inverted and disposed in an overlapping arrangement for electrically insulating endturn portions of adjacent phase windings.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: January 30, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Joseph K. Coldwate, Wilfredo E. Colón-Velázquez, Gordon W. Friske
  • Patent number: 9847206
    Abstract: The embodiments relate to a rotary anode arrangement with a rotary anode, a rotor for driving the rotary anode and a stator, which exerts a torque on the rotor. The stator includes at least one coil for generating a first magnetic field and at least one permanent magnet for generating a second magnetic field. The embodiments also relate to an X-ray tube with the rotary anode arrangement. The embodiments offer the advantage that a high electromagnetic utilization is possible with a synchronous motor that is excited by permanent magnets.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: December 19, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Zeljko Jajtic, Thomas Weidinger
  • Patent number: 9801295
    Abstract: Remote control units with lanyard attachment mechanisms are disclosed. A handheld remote control assembly can include an anchor member, a lanyard coupled to the anchor member, and a device to be carried by the lanyard. The device includes a body and a receptacle formed in the body, the receptacle configured to receive the anchor member therein. A housing can removably cover the receptacle to secure the anchor member in place, and a notch in the housing receives a portion of the lanyard therethrough.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: October 24, 2017
    Assignee: Oculus VR, LLC
    Inventors: Glen Jason Tompkins, Peter Wesley Bristol, Blake Francis Andersen
  • Patent number: 9755471
    Abstract: In a concentrated winding stator, which has a separated iron core structure, of a rotary electric machine, a length of ear portions 3c of insulating sheets 3, which are protruded between neighboring winding 4, is set as a length by which a creepage distance, which is required for an insulation between the neighboring windings 4, can be secured.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: September 5, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kota Katsuragi, Shogo Okamoto, Shinichiro Yoshida
  • Patent number: 9711264
    Abstract: Fewer insulation layers can be used by virtue of using hydrophobic electrically conductive materials around a main insulation around a conductive bar. There are several more layers of conductive and/or non-conductive material.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 18, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Mario Brockschmidt, Peter Gröppel, Friedhelm Pohlmann, Claus Rohr, Roland Röding, Julia Wirsing