Coils Patents (Class 310/208)
  • Patent number: 10886804
    Abstract: A rotating electrical machine that includes a rotor core; a stator core disposed so as to face the rotor core in a radial direction and including a plurality of teeth and a plurality of slots each located between adjacent ones of the teeth; and a concentric coil formed by concentrically winding a wire, and including a slot accommodated portion placed in the slot of the stator core and a coil end portion projecting in an axial direction from the stator core, wherein of the slot accommodated portion of the concentric coil, an axial end of the slot accommodated portion located on a side facing the rotor core is located closer to an outside in the radial direction than an axial middle part of the slot accommodated portion located on the side facing the rotor core.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 5, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Kiyotaka Koga, Shingo Hashimoto, Shingo Sato
  • Patent number: 10886807
    Abstract: A brushless motor includes a stator, a control device, and a rotor. The stator includes a stator core and windings. The stator core includes teeth arranged next to one another in a circumferential direction and slots formed between the teeth. The windings are inserted into the slots and wound around the stator core as three-phase windings of a plurality of systems. The control device generates a three-phase driving current. The rotor is rotated and driven when the three-phase windings are supplied with the three-phase driving current. The windings are operable independently in each system. At least two windings of different systems and the same phase are arranged mixed in the same slot. The driving current of the same phase is supplied to the two windings of different systems and the same phase arranged in the same slot.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 5, 2021
    Assignee: DENSO CORPORATION
    Inventor: Rintaro Horizumi
  • Patent number: 10790728
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: September 29, 2020
    Assignee: Enure, Inc.
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10727712
    Abstract: An axial field rotary energy device can include a housing having an axis with an axial direction. A stator assembly can include a plurality of stator panels that are discrete panels from each other. The stators panels can be mechanically and stationarily coupled to the housing. Each stator panel can include a printed circuit board (PCB) having coils that are electrically conductive, each stator panel consists of a single electrical phase. In addition, rotors can be rotatably mounted within the housing on opposite axial ends of the stator assembly. The rotors can be mechanically coupled together with a rotor spacer. Each rotor can include magnets. In addition, in one version, no rotor is disposed between axially adjacent ones of the stator panels.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 28, 2020
    Assignee: Infinitum Electric, Inc.
    Inventors: Bernhard L. Schuler, Rich Lee, Jorgen Rasmussen
  • Patent number: 10720818
    Abstract: A synchronous reluctance type rotary electric machine of an embodiment includes a shaft, a rotor core, rotor core pressers, a plurality of conductor bars, and short-circuit rings. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft and includes multi-layered hollow parts having a convex shape toward a radially inward side formed for each pole in cross section. The rotor core pressers hold the rotor core by pressing the rotor core from both sides in a rotation axis direction. The plurality of conductor bars are disposed in the hollow parts to extend along the rotation axis and have both ends protruding through the rotor core pressers. The short-circuit rings are provided at both ends of each of the plurality of conductor bars and connect the plurality of conductor bars together. Thus, the conductor bars are fixed to the rotor core pressers.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: July 21, 2020
    Assignees: Toshiba Industrial Products and Systems Corporation, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Masaaki Matsumoto, Takashi Araki, Makoto Matsushita, Katsutoku Takeuchi, Toshio Hasebe
  • Patent number: 10686350
    Abstract: A manufacturing method of a rotary electric machine is disclosed. The rotary electric machine includes a stator provided with a stator iron core, which is cylindrical and in which slots are formed in a circumferential direction on an inner circumferential surface, and coils of phases that are each inserted into the slots, and a movable element provided with a movable element iron core supported in a rotatable manner relative to the stator and at least a pair of movable element magnetic poles provided in the movable element iron core. The method includes: a split flux coil formation step; a coil setting step; a stator iron core setting step; and a split flux coil collective insertion step.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: June 16, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Toshiya Sugiyama, Yusaku Kawanishi, Akinori Hoshino, Hiroaki Yabui, Koji Sato
  • Patent number: 10637314
    Abstract: The invention relates to a bar winding arrangement of a stator or a rotor of an electric machine, including a number of bar segments, which are housed in a plurality of slots of the stator or the rotor and are electrically connected to one another in such a way that they form a continuous winding of the stator or the rotor, wherein each of the slots is divided by the bar segments into a first group of bar segments and at least one second group of bar segments, wherein the bar segments of the first group have a smaller cross section than the bar segments of the second group, wherein the bar segments of the first group are electrically connected in series and the bar segments of the second group are electrically connected in series and in parallel with the bar segments of the first group and wherein the bar segments of the first group are arranged closer to a slot opening in the radial direction than the bar segments of the second group.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 28, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Stefan Götz, Malte Jaensch
  • Patent number: 10622820
    Abstract: Embodiments describe a wireless charging transmitter coil includes: a support structure having an outer perimeter surrounding a contact housing and having first and second channels extending from the outer perimeter to the contact housing; first and second contacts positioned within the contact housing; and a wire wound around the outer perimeter of the support structure, the wire having a first end that extends through the first channel and a second end that extends through the second channel.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 14, 2020
    Assignee: Apple Inc.
    Inventors: Eric S. Jol, Christopher S. Graham, Demetrios B. Karanikos
  • Patent number: 10614951
    Abstract: A winding unit including a case is provided. The case has a receiving space capable of housing at least one turn of a coil portion in addition to a winding portion in a radial direction. In case, a blank portion having a dimension of one turn of the coil portion in the radial direction is formed between the two coil portions next to each other in the winding portion. When manufacturing the winding unit, the blank portion can be formed in a suitable position, and the number of turns of the winding portion (the number of coil portion) does not need to change. Further, an inductance value of the winding portion can be adjusted with simply structure.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 7, 2020
    Assignee: YAZAKI CORPORATION
    Inventors: Takahiro Nakahara, Ngahu Antony Wambugu, You Yanagida, Masao Ishizaka
  • Patent number: 10587157
    Abstract: A stator for a rotating electrical machine, the stator including a tubular core having a plurality of slots; and a coil mounted in the core, wherein the coil includes a plurality of conductor wires aligned in the slots, each of the conductor wires has ends projecting beyond the slot, a pair of the ends are bonded together to form a bonded end, a plurality of the bonded ends are arranged next to each other in a circumferential direction of the core and are arranged in a radial pattern so as to extend in a radial direction of the core, and a cap is formed by molding using a resin material having electrical insulation properties so that the cap integrally covers adjacent ones of the plurality of bonded ends.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: March 10, 2020
    Assignee: AISIN AW CO., LTD.
    Inventors: Yoichi Miyoshi, Junichi Yokota, Kiyotaka Koga, Junichi Sugawara, Hideaki Kimura
  • Patent number: 10574107
    Abstract: In some embodiments, a system includes a machine segment that includes multiple coils. Each coil is electrically isolated from the other coils in the machine segment, and each coil is electrically coupled to at least one electrical terminal to provide electrical access to the coil. Each electrical terminal provides electrical access to the coil to which it is electrically coupled such that the coil can be removably electrically coupled to an electrical circuit. The machine segment is also configured to be removably mechanically coupled to a second machine segment to form at least a portion of a stator or a portion of a rotor.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 25, 2020
    Assignee: BWP Group
    Inventors: James S. Smith, Marc W. Eichinger, Stephane A. Eisen, James D. Jore, Michael A. Kvam, Brian J. Sullivan
  • Patent number: 10511199
    Abstract: The rotary machine of the present disclosure is provided with an annular stator that has: an annular yoke section; multiple salient poles that protrude radially inward and are arranged circumferentially; and coils disposed on the salient poles. Circumferential surfaces of the salient poles are formed into tapered surfaces that taper toward the tip of the salient poles, and the coils include a first coil and a second coil.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: December 17, 2019
    Assignee: IHI CORPORATION
    Inventors: Narifumi Tojima, Takehiro Jikumaru
  • Patent number: 10505426
    Abstract: A reduction in size and an improvement in cooling performance of a dynamo-electric machine are achieved. A stator of a dynamo-electric machine according to the present invention includes a plurality of segment coils surrounding a rotation axis, a stator core partially accommodating each of the segment coils, and an insulating coating covering at least certain portions of the segment coils protruding from the accommodating space of the stator core, in which the segment coils are arranged in a direction from the rotation axis to a radially outer side, and the volume of the insulating coating is larger on a radially outer side than on a side close to the rotation axis.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kenichi Nakayama, Naoki Nishikawa
  • Patent number: 10483820
    Abstract: An induction motor stator encapsulate method, including arranging a stator of an induction motor in a case of the induction motor, wherein the stator comprises a stator core and a stator winding surrounding the stator core; filling a first encapsulating material into the case for forming a first insulation layer, wherein the first insulation layer directly covers the stator winding; and filling a second encapsulating material into the case for forming a second insulation layer, wherein the second insulation layer covers the first insulation layer; wherein a shrink rate of the first encapsulating material is smaller than a shrink rate of the second encapsulating material.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 19, 2019
    Assignee: Shanghai XPT Technology Limited
    Inventors: Miao Luo, Jifei Ma, Kangjun Luo, Zhaofeng Li, Bohan Yang
  • Patent number: 10461613
    Abstract: A stator includes a stator core and an insulator. The insulator includes a main body and a wall. An adhesive is attached to a portion of a triangular gap between the wall of the insulator and a yoke of the stator core. The adhesive is expandable, and adheres and fixes the insulator to the stator core by expanding to fill in the gap by being heated. Also, a stator manufacturing method includes attaching an adhesive to the wall of the insulator or an inside wall of the yoke, installing the insulator on a tooth, and heating the stator core and the insulator.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukio Tsuchiya, Hiroyuki Hattori
  • Patent number: 10447125
    Abstract: The present invention was contrived through attention being focused on the following in a prior-art distributed-winding coil: a “solenoid” configuration in which winding wires are to be wound is preserved when initially formed, but this configuration tends to be loosened during subsequent steps, and the initial winding sequence of the winding wires, or the position of the winding wires relative to each other, tends to be disrupted, and accordingly must be prevented, when a certain force is applied and the necessary bending or deformation is induced in coils with distributed winding in which the solenoid configuration is preserved, or when the coils are ultimately inserted into slots.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 15, 2019
    Assignee: Hayashi Industry Co., LTD.
    Inventors: Ko Kajita, Takahiko Hobo
  • Patent number: 10439461
    Abstract: A rotational electric machine achieving both of productivity and insulation property is provided. A rotational electric machine includes an iron core having a plurality of slots, and a plurality of segment conductive bodies arranged in the slots, wherein the iron core includes a coil guide arranged at, at least, one of opening portions of the slots, and the coil guide includes a slot insertion portion located between the slot and the segment conductive body and at least one separation portion located between the segment conductive bodies, and the slot insertion portion and the separation portion are arranged in the slot together with the segment conductive body.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 8, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi Matahira, Yoshimi Mori, Takahiro Oomori, Takayuki Koizumi
  • Patent number: 10411563
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: September 10, 2019
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10404127
    Abstract: Provided are a motor and method for producing the motor that automatically insert interphase insulation paper. Interphase insulation paper (7) has a parting strip (8) that partitions the boundary between windings (5) that are adjacent in the circumferential direction when inserted into coil ends (6). The parting strip (8) is sandwiched between the adjacent windings (5, 5).
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: September 3, 2019
    Assignee: FANUC CORPORATION
    Inventors: Gang Ren, Hidetoshi Uematsu
  • Patent number: 10374489
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: August 6, 2019
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10325709
    Abstract: There is provided a power transmission device to switch a coupled state and an uncoupled state between a first member and a second member which are arranged in a transmission path of a driving force to thereby control transmission of the driving force. The device includes a movable body having ferromagnetic property, a first magnetic path and a second magnetic path, and a permanent magnet. The device also includes a driving portion to excite the electromagnet in the forward direction and then increases an attraction force on a side on which a magnetic flux is increased or decreased.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: June 18, 2019
    Assignee: SINFONIA TECHNOLOGY CO., LTD.
    Inventor: Hideaki Kuwabara
  • Patent number: 10250093
    Abstract: Stator for rotary electric machine has stator core and stator coil. The stator core has plural slots. The stator coil has a one-side conductor segment, a first other-side conductor segment, and a second other-side conductor segment. In the one-side conductor segment, a first leg and a second leg are inserted in first and second slots from one axial end side of the stator core. In the first other-side conductor segment, a third leg is inserted in the first slot from another axial end side of the stator core. In the second other-side conductor segment, a fourth leg is inserted in the second slot from the other axial end side of the stator core. The stator coil is formed such that the opposing legs are joined in each of the slots and a plurality of the one-side conductor segment and a plurality of the other-side conductor segment are sequentially joined.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 2, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyuki Hattori
  • Patent number: 10243416
    Abstract: An electric motor includes a stator and a rotor. One of the stator and the rotor includes a magnetic core, preferably an iron core. A reactive metal or a mixture or reactive metals is fixed to the magnetic core. The or each reactive metal has a reactivity greater than the reactivity of the metal of the magnetic core. A rotor and a stator is also provided. By fixing the reactive metal or metal mixture to the magnetic core of the motor, rotor or stator, oxidation and corrosion of the core can be avoided or reduced.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 26, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Ping Wo Poon, Tian Wen Li
  • Patent number: 10186922
    Abstract: An axial field rotary energy device can include a housing having an axis with an axial direction. A stator assembly can include a plurality of stator panels that are discrete panels from each other. The stators panels can be mechanically and stationarily coupled to the housing. Each stator panel can include a printed circuit board (PCB) having coils that are electrically conductive, each stator panel consists of a single electrical phase. In addition, rotors can be rotatably mounted within the housing on opposite axial ends of the stator assembly. The rotors can be mechanically coupled together with a rotor spacer. Each rotor can include magnets. In addition, in one version, no rotor is disposed between axially adjacent ones of the stator panels.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: January 22, 2019
    Assignee: INFINITUM ELECTRIC INC.
    Inventors: Bernhard L. Schuler, Rich Lee, Jorgen Rasmussen
  • Patent number: 10177620
    Abstract: In some embodiments, a system includes a machine segment that includes multiple coils. Each coil is electrically isolated from the other coils in the machine segment, and each coil is electrically coupled to at least one electrical terminal to provide electrical access to the coil. Each electrical terminal provides electrical access to the coil to which it is electrically coupled such that the coil can be removably electrically coupled to an electrical circuit. The machine segment is also configured to be removably mechanically coupled to a second machine segment to form at least a portion of a stator or a portion of a rotor.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: January 8, 2019
    Assignee: Boulder Wind Power, Inc.
    Inventors: James S. Smith, Marc W. Eichinger, Stephane A. Eisen, James D. Jore, Michael A. Kvam, Brian J. Sullivan
  • Patent number: 10050488
    Abstract: The invention relates to a slot sealing material (7) for an electric machine, which for accommodating an electric conductor arrangement (3) comprises at least one slot (2) having a slot opening (5). Said slot sealing material contains a magnetic filler, especially a soft-magnetic filler, and a reaction resin mixture comprising at least one resin component and a curing agent component. To improve the temperature resistance and mechanical strength of the slot sealing material, a dianhydride is used as curing agent component.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: August 14, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Juergen Huber, Bernhard Klaussner, Dieter Schirm
  • Patent number: 10019674
    Abstract: A machine learning apparatus includes a state observing unit for observing a state variable comprised of at least one of an actual dimension value, a resistance actual value, etc., and at least one of a dimension command value, a resistance command value, etc., and an execution time command value for a program, and a learning unit for performing a learning operation by linking at least one of an actual dimension value, a resistance actual value, etc., to at least one of a dimension command value, a resistance command value, etc., observed by the state observing unit, and an execution time command value for the program.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: July 10, 2018
    Assignee: FANUC CORPORATION
    Inventor: Yasunori Sugimoto
  • Patent number: 9941759
    Abstract: A unit winding formed by bundling conductor strands in a first slot first sectional region from one end in a stator axial direction toward the other end is turned back so that positions of the insulating conductor strands are inverted in the axial direction. The unit winding is disposed into a second slot third sectional region from the other end in the axial direction toward the one side, and turned back so that the positions of the strands are inverted in a circumferential direction. Then, the turned back unit winding is disposed into the first slot second sectional region from the one end in the axial direction toward the other side, and turned back so that positions of the strands are inverted in the axial direction. The unit winding is disposed in the second slot fourth sectional region from the other end in the axial direction toward the one end.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: April 10, 2018
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Tamami Oryu, Katsuya Umemoto
  • Patent number: 9929613
    Abstract: A motor includes a rotor and a stator. The stator is operable to electromagnetically induce movement of the rotor and includes stator teeth and a motor-board. A stator tooth includes a core material, a plurality of winding segments, and a bobbin. The bobbin includes a core receptacle for mechanically engaging the core material, radial-orientated sections to support and electrically isolate the winding segments, and connectors for electrically coupling the winding segments. The motor-board includes electrical receptacles for electrically mating with the connectors for each of the winding segments and traces for coupling the winding segments to a power source.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: March 27, 2018
    Assignee: Bison Gear & Engineering Corp.
    Inventors: Matthew Sherman Hanson, Edmund Peter Henke, Jr.
  • Patent number: 9912205
    Abstract: A rotor structure for a rotary electric machine in which an inner surface of a hollow rotor core and an outer surface of a shaft inserted into a hole of the rotor core are fitted together by mutual engagement between a projection and a recess to compose a rotor, the rotor structure including: a first retainer brought into contact with one end of the rotor core; and a second retainer brought into contact with a surface of the first retainer opposite to a surface in contact with the rotor core so as to fix the first retainer and the rotor core to the shaft, wherein a coefficient of static friction of a first sliding surface between the first retainer and the second retainer is smaller than any other sliding surface provided in the rotor.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 6, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takuma Kinoto, Tatsuya Imai, Masahide Kimura, Hideo Sakuyama, Koichi Murata, Makoto Abe
  • Patent number: 9899901
    Abstract: A flat coil includes at least first and second coil layers having the shape of a ring and stacked, each of the first and second coil layers includes a pair of linear portions facing each other in a first direction and a pair of end portions facing each other in a second direction crossing the first direction, and the flat coil is bent on at least one of the end portions. The flat coil is an ?-winding coil and is bent toward the first coil layer from the second coil layer. A first end face of the first coil layer in the second direction and a second end face of the second coil layer in the second direction are positioned on the same plane at the end portion to be bent.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 20, 2018
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Takashi Ikeda, Doutaro Usui, Kotaro Wada
  • Patent number: 9899135
    Abstract: Provided is a device that reduces loss by means of a large-capacity, three-phase reactor device that eliminates high-frequency components arising in a power controller system used in solar power generation and the like. The present invention is provided with: a yoke core that uses an amorphous ribbon; magnetic leg cores formed into a fan shape using an amorphous ribbon; and a coil wound around the magnetic leg cores.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: February 20, 2018
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Kenji Nakanoue, Naoyuki Kurita
  • Patent number: 9893584
    Abstract: An end winding support for an electric generator includes a pair of winding lead supports formed on opposite sides of a winding slot and separated by an upper slot width. Each of the winding lead supports includes a winding channel routed between a lead coupling port and the winding slot. The winding slot includes a base support and a pair of alignment members that define a transition between the base support and the winding lead supports. A lower slot width is defined along the base support between the alignment members and a ratio of the upper slot width to the lower slot width is between 1.024 and 1.053.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: February 13, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Andreas C. Koenig, Mark J. Franklin, David Pfaffinger
  • Patent number: 9831753
    Abstract: The invention provides a switched reluctance motor having high torque and reduced counter electromotive force for generating mechanical energy. The motor includes a rotor component having a plurality of rotor poles speed equally circumferentially around the center of the rotor component, a stator component positioned around the rotor component and having a plurality of bifurcated stator poles and coil windings to in the separation between the legs of each stator pole, and a magnet mounted between adjacent stator poles, a shunt in electromagnetic communication with the coil windings the stator poles, and a bridge component encircled by the coil windings and separating each stator pole from each shunt.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: November 28, 2017
    Inventor: Paul Boaventura-Delanoe
  • Patent number: 9806588
    Abstract: An electric motor comprising a rotor which has a plurality of permanent magnets arranged along a circumferential direction, a stator arrangement with a winding arrangement which surrounds, at least in parts, the permanent magnets. Said stator arrangement comprises a first stator having a plurality of windings and the stator arrangement comprises a second stator, the windings of the first and second stators being embodied, respectively as frame-shaped coils, said coils of the first stator being arranged in the radial direction on the outside of the permanent magnets, the coils of the second stator being arranged in the radial direction inside the permanent magnets, and the coils are arranged along the winding axis thereof in the radial direction and the permanent magnets are arranged along the magnetization direction thereof in the radial direction.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 31, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Martin Hoffmann, Gerhard Huth
  • Patent number: 9804508
    Abstract: A linear motor with high heat recovery efficiency that inhibits the rise in surface temperature is offered. The linear motor is disposed in a surrounding member (142) and facing a flow passage (142a) of a liquid for regulating temperature, and is provided with a coil unit (141) having at least a part thereof in contact with the liquid. The coil unit (141) is provided with a coil body (144), a mold layer (143) that covers the coil body and holds it in specific form, and a liquid protection layer (150) that covers the mold layer (143) and has liquid protection properties.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 31, 2017
    Assignee: Nikon Corporation
    Inventors: Shigeru Morimoto, Tadahiro Kominami
  • Patent number: 9793774
    Abstract: An armature for a rotary electric machine includes: a core that includes a plurality of teeth that are arranged at a predetermined pitch in a circumferential direction; and a plurality of edgewise coils that are configured by winding a rectangular conductor wire into an edgewise winding, the plurality of edgewise coils each include rectilinear portions and coil end portions that are arranged radially, and that are each linked by bent portions, the rectilinear portions are arranged radially on circumferential side portions of the teeth so as to be gradually further away from a central axis of the teeth from a tip end of the teeth toward a root, and radially adjacent portions of the rectangular conductor wire are configured such that bulging portions that arise due to compressive stresses resulting from bending at inner peripheral side portions of the bent portions do not face each other.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: October 17, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hirohisa Yokota, Yutaro Shirai, Shinichiro Yoshida
  • Patent number: 9698643
    Abstract: A stator winding of a rotary electric machine includes windings for each pole of each phase being configured by a single layer lap wound coil. The single layer lap-wound coil includes combination coils each configured by two or more divided unit coils of the same phase being disposed one over the other in a radial direction inside slots of a stator core. The combination coils each comprise a first-row unit coil and a second-row unit coil disposed in a radially inner side of the stator core with respect to the first-row unit coil. A turns count of the first-row unit coil equals a turns count of the second-row unit coil. A count of lead wires of the first-row unit coil differs from a count of lead wires of the second-row unit coil.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 4, 2017
    Assignee: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORP.
    Inventors: Hisaaki Shimozu, Hisami Katsurayama, Takeo Kaito, Hiroaki Nagashima
  • Patent number: 9692271
    Abstract: An electric motor has a stator positioned lengthwise within and fixed to a case. The stator has a stator core, a coil wound around a tooth extending from the stator core, and an insulating member attached to the stator core wherein the insulating member is configured to insulate the coil from the stator core. A wire holding part extends from the insulating member to hold a wire within an outer diameter of the insulating member. A rotor is positioned lengthwise along an inner circumference of the stator wherein the rotor is configured to rotate about a motor axis extending lengthwise across the electric motor.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: June 27, 2017
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Sengiku, Youko Tomita
  • Patent number: 9641036
    Abstract: A U-phase coil that constitutes an armature winding includes four (first through fourth) small coil groups U101, U102, U201, and U202 that make one round circumferentially, that are formed by connecting in series in order of circumferential arrangement winding bodies that are housed in slot pairs that are separated by 360 electrical degrees. The U-phase coil is configured into a parallel circuit in which the first and fourth small coil groups U101 and U202, which are connected in series, and the second and third small coil groups U102 and U201, which are connected in series, are connected in parallel by linking together winding ends within a radially inner winding end group using crossover wires 711 and 721, and by linking together winding ends within a radially outer winding end group using a crossover wire 821.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 2, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Atsushi Sakaue, Hiroyuki Akita, Masaya Inoue
  • Patent number: 9590479
    Abstract: Disclosed is a stator for a rotating electrical machine, which includes a stator core having a plurality of slots, and a plurality of coils. Each of the coils has a first inserting section and a second inserting section, which are inserted into two slots which form a pair, a first coil end, and a second coil end. The first and/or the second coil end has a twisted portion and a bent portion. The twisted portion is formed by twisting the coil end at a part close to the first inserting section. The bent portion is formed by bending, at a part close to the second inserting section, the coil end such that the coil end is laid flat.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: March 7, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Hiroshi Tsuge, Kazuyuki Yamaguchi
  • Patent number: 9505046
    Abstract: A flat wiring member includes a plurality of rectangular enamel coated wires arranged in the form of a flat plate, a wiring stem portion that the rectangular enamel coated wires are arranged in parallel to each other and adjacent ones of the rectangular enamel coated wires are bonded to each other at a surface of an enamel coat layer thereof, and a wiring branch portion with the rectangular enamel coated wires bent so as to branch off from the wiring stem portion.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: November 29, 2016
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kotaro Tanaka, Toshiyuki Horikoshi, Takumi Sato, Kenichi Murakami, Yasuhiro Funayama, Asuka Okamoto
  • Patent number: 9455613
    Abstract: A winding for a rotor for use in an electrical generator utilized in the power generation industry. The winding includes a plurality of axial sections and a plurality of transversely oriented end arc sections. An integrated leg section extends from each end arc section to form an associated corner section at an intersection of each leg section and associated end arc section. Each leg section is affixed to an associated axial section at a joint that is spaced apart from an associated corner section such that the joint is not subjected to stress concentration which occurs at the associated corner section.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: September 27, 2016
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Mark A. Grobe, David Earl Hulsey, James V. Johnson, Robert F. Lemke, Robert W. Ralph, Christian T. Schneider, Stephen T. Soto, Randy Edward Whitener, Larry L. Zeller
  • Patent number: 9438082
    Abstract: A rotary electric machine includes a coil portion of the stator coil that protrudes from an end of a stator core, a terminal module that is provided on a top of the coil portion on an axial end of the coil portion and that electrically connects the stator coil and an external electric device, and a cover unit in which a cover that covers the terminal module and a guide that guides a coolant to the coil portion are formed together into one piece. The guide is provided on each of circumferentially opposite sides of the cover to supply a coolant to the coil portion in a distributed manner.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: September 6, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yosuke Kurono, Tatsuhiko Mizutani
  • Patent number: 9419487
    Abstract: A rotary electric machine includes: a stator core that is formed of a plurality of split core pieces that are annularly arranged therein, coil conductors being wound around respective split core pieces. One ends of the respective coil conductors which are wound around the respective split core pieces are connected to power supply terminals for corresponding phases, and other ends of the respective coil conductors are connected to each other to form a neutral point, the respective coil conductors are formed of rectangular wires, and the neutral point-side end portions of the respective coil conductors are led to an outside of the stator core from one point on a circumference of the stator core.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: August 16, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Manabu Yazaki, Koichi Ono, Satoshi Yamada, Tarou Genda
  • Patent number: 9328736
    Abstract: A bearing that is used in a motor pump in which a liquid is, not only pumped by means of an impeller driven by the pump, but also is used to lubricate components of the motor pump including the motor pump shaft. The bearing is for supporting the shaft at at least one location of the shaft. The bearing is constructed of a bronze material having added thereto a small amount of graphite, preferably around 2.5%.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: May 3, 2016
    Assignee: AquaMotion, Inc.
    Inventors: Benno Lebkuchner, Hans L. Kuster
  • Patent number: 9287744
    Abstract: A winding structure for a rotating electric machine includes: a core including slots; and a coil including a first winding and a second winding combined by intersecting the first winding and the second winding with each other. Each straight portion of the coil is inserted into any one of two slots arranged at a given interval so that the coil is assembled to the core.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: March 15, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Takashi Fukushige
  • Patent number: 9276452
    Abstract: A method is disclosed for manufacturing the winding coil of an electrical machine from flat wire. The coil can include coil sides fitted to a groove of an electrical machine and end sections which are left outside the groove and form a coil end. Flat wire can be used for winding a spool in which the coil rounds are in the same winding plane and in which there are two parallel straight coil sides on opposite sides. After this, the parallel straight coil sides can be bent towards each other essentially to the right angle in comparison to the winding plane.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: March 1, 2016
    Assignee: ABB TECHNOLOGY AG
    Inventors: Antti Laamanen, Jari Jäppinen, Juhani Mantere, Pekka Ketola
  • Patent number: 9225217
    Abstract: An electric power collection and distribution ring includes a plurality of annular bus rings for collecting and distributing power to windings of a stator, the windings being covered with an insulation cover and the stator being formed by winding the windings around a plurality of teeth arranged in a circular pattern. The bus ring is formed by annularly coupling a plurality of arc-shaped conductive members each including terminal portions at both circumferential end portions, the terminal portions being welded to each other together with an end portion of the winding. The terminal portion includes a first contact surface coming into contact with the end portion of the winding at the time of the welding and a second contact surface to be a contact point between the terminal portions.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: December 29, 2015
    Assignee: HITACHI METALS LTD.
    Inventors: Kazuhiko Tomita, Kenichi Egami, Takahiro Futatsumori, Kazuyuki Watanabe
  • Patent number: 9130429
    Abstract: A rotating electrical machine includes a toric stator and a rotator located inside or outside the stator. The stator includes a plurality of teeth radially extending from the center of a circle of the stator with equal gap, and the plurality of coils arranged in order and in layers by the winding wire being turned a plurality of times around the circumference of each of a plurality of teeth. The number of turns of the two respective coils arranged on the circumference of the two adjacent teeth is different.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 8, 2015
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takaaki Shibuya, Mitsuru Iwakiri, Manabu Harada, Jun Kojima