Motor Or Generator Patents (Class 29/732)
  • Patent number: 10413958
    Abstract: In a back pressure device for progressive die apparatus, a suitable back pressure can be produced during the blanking interval preventing the iron core laminates from being pushed upward by using a simple structure.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: September 17, 2019
    Assignee: KURODA PRECISION INDUSTRIES LTD.
    Inventors: Hideo Horii, Kenichi Shindo
  • Patent number: 10181777
    Abstract: Method for forming at least one U-shaped winding element (10) for an electromagnetically excitable core (11) of an electric rotation machine (12), wherein the U-shaped winding element (10) has a first rod section (13) and a second rod section (15) which are connected by an arcuate connection section (16), wherein an inner tool part (23) having at least one recess (29) in the region of its outer circumference is provided, and an outer tool part (26) having at least one recess (30) in the region of its inner circumference is provided, and at least the U-shaped winding element (10) is inserted into the inner tool part (23) and the outer tool part (26) such that one rod section (13) is inserted into a recess (29) of the inner tool part (23), the other rod section (15) is inserted into a recess (30) of the outer tool part (26), and such that the inner tool part (23) and the outer tool part (26) are rotated with respect to one another about the axis of rotation (36), wherein in that context the at least two rod sec
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 15, 2019
    Assignee: SEG Automotive Germany GmbH
    Inventors: Paul Borrmann, Dittmar Kleemann, Peter Schreiber, Hans-Juergen Schwarz, Klaus Hilke
  • Patent number: 10122227
    Abstract: In various embodiments, a skewed Halbach array rotor as disclosed herein includes (1) a plurality of magnets arranged and oriented relative to adjacent ones of the magnets to form a substantially cylindrical Halbach array the combined magnetic field of which is concentrated on one side of the array, wherein the substantially cylindrical Halbach array has a rotational axis and each of at least a subset of the magnets is oriented in a fixed position such that the longitudinal axis of the magnet is at a prescribed skew angle to the rotational axis; and (2) a retaining structure adjacent to at least a subset of the magnets comprising the plurality of magnets and configured to hold one or more of said subset of magnets in place.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: November 6, 2018
    Assignee: Kitty Hawk Corporation
    Inventor: Geoffrey Alan Long
  • Patent number: 10084353
    Abstract: Provided is a rotor including a first rotor body including a first protrusion protruding from an outer circumferential surface thereof and a second rotor body stacked on and coupled to the first rotor body and including a second protrusion disposed at a position different from the first protrusion with respect to a circumferential direction and protruding from an outer circumferential surface thereof, wherein a height of the first protrusion is formed to be greater than a height of the first rotor body, and a height of the second protrusion is formed to be greater than a height of the second rotor body. The rotor is formed so that coils are wound around the respective protrusions that are divided and have relatively wide winding spaces unlike a rotor integrated with protrusions around which coils are wound, thereby increasing a coil space factor and providing an effect of facilitating a winding task.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: September 25, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Byung Sam Lee
  • Patent number: 9973063
    Abstract: The present application provides a combined stator wedge driver and bar jacking tool for positioning a stator bar and a stator wedge into place along a slot of a stator core. The combined stator wedge driver and bar jacking tool may include a bar jacking tool to drive the stator bar into the slot and a stator wedge driver to drive the stator wedge on top of the stator bar in the slot. The bar jacking tool and the stator wedge driver extend from a common housing.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: May 15, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Darren Friot, David Robert Schumacher
  • Patent number: 9812239
    Abstract: A manufacturing device for a rotor core includes: a magnetization device that magnetizes magnet raw materials before being magnetized disposed in magnet insertion holes of the rotor core to turn the magnet raw materials before being magnetized into permanent magnets; and a detachment device that detaches the rotor core from the magnetization device. The detachment device also functions as a mounting device that mounts a jig around the rotor core when the rotor core is detached from the magnetization device.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: November 7, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Keita Nimura, Naotake Kanda, Ryosuke Yamaguchi
  • Patent number: 9762015
    Abstract: A brush holder system includes a stationary support member having at least one groove, and a fork electrical connector. A brush retainment member is configured to be releasably affixed to the stationary support member. The brush retainment member has at least one rail configured to slide along the at least one groove. The brush retainment member has a knife electrical connector configured to mate with the fork electrical connector. A radio frequency identification device (RFID) tag is mounted on the brush retainment member, and the RFID tag is configured to monitor brush wear and communicate brush wear status to a monitoring system. The stationary support member is configured for electrical connection to a collector mount and the brush retainment member is configured to retain at least one brush.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: September 12, 2017
    Assignee: General Electric Company
    Inventors: Albert Eugene Steinbach, Eric Steven Buskirk, Benjamin Alber Mancuso, Frank Austin Scalzo, III, Curtis Maurice Hebert, Matthew Thomas Preston
  • Patent number: 9667124
    Abstract: In a controller-integrated electric rotating machine configured to assemble a front side semi-manufactured assembly E formed from an electric rotating machine main body 1 and a front bracket 4 with the rear side semi-manufactured assembly D to which a rear bracket 5, a control unit assembly A, a power unit assembly B, and a brush unit assembly C are integrated, a series of brush restricting pin insertion holes 24 are disposed from a rear side end surface of the control unit assembly through the brush, and therefore assembling workability is improved without failures in assembling work which occur due to breaking away of a brush from a brush holder to the rotary shaft side.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: May 30, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshinobu Utsumi, Masahiko Fujita
  • Patent number: 9653973
    Abstract: Apparatuses and methods relating to hub motors having enhanced thermal characteristics may include a hub motor having a stator comprising steel and a central axle (e.g., a mandrel and shaft) comprising a material with a substantially higher thermal conductivity than the stator (e.g., aluminum). Heat may be transferred from the stator through the axle of the motor to an outside heat sink. Manufacturing of thermally enhanced hub motors may include extrusion and/or cryogenic fitting methods relating to the central mandrel and shaft.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 16, 2017
    Assignee: Future Motion, Inc.
    Inventors: Kyle Jonathan Doerksen, Dan Blachinsky, Julian de la Rua, Clyde Hancock
  • Patent number: 9601974
    Abstract: An armature assembly apparatus for assembling an armature of an electrical machine is provided. The armature assembly apparatus has an armature holding apparatus to hold a partially assembled armature such that a rotation axis of the armature is horizontal. The armature assembly apparatus has a rotating device for rotating the partially assembled armature about a rotation axis. The armature assembly apparatus also has a ring segment conveyance for conveying an armature ring segment to a mounting position relative to a free ring segment portion of the partially assembled armature.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: March 21, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Kenneth Damgaard Hoell, Jakob Mikkelsen, John Krath Pedersen, Martin Bach Soerensen
  • Patent number: 9598141
    Abstract: Apparatuses and methods relating to hub motors having enhanced thermal characteristics may include a hub motor having a stator comprising steel and a central axle (e.g., a mandrel and shaft) comprising a material with a substantially higher thermal conductivity than the stator (e.g., aluminum). Heat may be transferred from the stator through the axle of the motor to an outside heat sink. Manufacturing of thermally enhanced hub motors may include extrusion and/or cryogenic fitting methods relating to the central mandrel and shaft.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: March 21, 2017
    Assignee: Future Motion, Inc.
    Inventors: Kyle Jonathan Doerksen, Dan Blachinsky, Julian de la Rua, Clyde Hancock
  • Patent number: 9481092
    Abstract: A device which prevents a gear from ending up being damaged while enabling the gear to be more easily and suitably gripped is provided. A gear gripping device 10 comprises a pawl which is provided to be able to move so as to approach a circumference of a gear G and which can engage with a gear groove which is formed at the circumference of the gear, a first drive part 18 which drives the pawl to abut against the circumference of the gear G, a second drive part 20 which makes the gear G rotate in the circumferential direction of the gear G, and an engagement detection part 50 which detects if the pawl has engaged with the gear groove.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: November 1, 2016
    Assignee: Fanuc Corporation
    Inventor: Keisuke Suga
  • Patent number: 9209669
    Abstract: A method for manufacturing a stator includes preparing a stator core having a plurality of teeth, a plurality of coils having a plurality of lead lines, a substrate having a plurality of connecting portions, and a plurality of positioning jigs having restraining portions. The method includes positioning the substrate and the lead lines so that distal portions of the lead lines are separated from the connecting portions in at least one of a radial direction and a circumferential direction. The method further includes inserting the lead lines in the restraining portions, aligning the distal portions of the lead lines with the corresponding connecting portions using the positioning jigs, inserting the lead lines into the corresponding connecting portions, and electrically connecting the lead lines inserted in the connecting portions to the corresponding connecting portions.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 8, 2015
    Assignee: ASMO CO., LTD.
    Inventors: Hiroyuki Mizutani, Yoshitsugu Nakagawa, Yukihide Ishino
  • Patent number: 9130439
    Abstract: A method of flaring stator windings includes supporting a first axial end of a stator core having first and second end turn portions on a first cuff having a first central opening. The first end turn portion extends through the first central opening. The method further includes positioning a second cuff having a second central opening upon a second axial end of the stator core with the second end turn portion extending through the second central opening, positioning a flaring guide having an angled surface upon the second cuff about the second end turn portion, aligning a flaring portion of a flare tool with the second end turn portion, urging the flaring portion between first and second stator winding layers forming the second end turn portion, and flaring the second stator winding layer radially outward of the stator core.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: September 8, 2015
    Assignee: REMY TECHNOLOGIES, L.L.C.
    Inventor: James Paul Murphy
  • Patent number: 9093886
    Abstract: A system for rebalancing a generator rotor includes a temporary bearing shield configured to support a non-drive end of the generator rotor, and a pony motor assembly configured for attachment to a drive end of the generator rotor. The pony motor assembly is configured to rotate the generator rotor during a rebalancing operation. The temporary bearing shield and the pony motor assembly enable the generator rotor to be rotated during an in-situ rebalancing operation.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: July 28, 2015
    Assignee: General Electric Company
    Inventors: Ulrich Werner Neumann, Mark Randall Stewart
  • Patent number: 9027234
    Abstract: A motor stator automatically assembling system includes a feeding unit, a wire-winding unit, a first conveyer unit, a second conveyer unit, a first assembly unit and a second assembly unit. A motor stator automatically assembling method includes: the feeding unit is operated to feed a plurality of insulation members; the insulation members are arranged on the first conveyer unit to convey to the wire-winding unit; the wire-winding unit is operated to wind wires on the insulation members to form a plurality of wire-wound insulation members; the wire-wound insulation members are arranged on the second conveyer unit to convey to the first assembly unit; the first assembly unit is operated to insert pole teeth into the wire-wound insulation members to form a plurality of compact pole tooth sets; the second assembly unit is operated to combine the compact pole tooth sets with a stator ring frame to form an assembled motor stator.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: May 12, 2015
    Inventor: Jung-Pei Huang
  • Patent number: 9027233
    Abstract: A supporting basket for an end winding of a stator winding of an electrical machine, the supporting basket including: at least one supporting ring; a plurality of supporting brackets arranged circumferentially distributed along the at least one supporting ring and attached to the at least one supporting ring; and a plurality of round connectors arranged radially externally on the supporting brackets, the round connectors extending circumferentially and being attached to the supporting brackets; wherein the supporting brackets, the at least one supporting ring, and the round connectors comprise an impregnation formed by dip-impregnation as a preassembled unit.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: May 12, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Daniel Hediger, Francesco Stallone
  • Patent number: 9016345
    Abstract: A rotary lamination apparatus has a die assembly rotatable about an axis and a mounting table received in an axial hole extending through the die assembly. Through rotation of the die assembly, punched core pieces are mounted on the mounting table while being rotatively offset. A drive mechanism is employed to rotate the mounting table integrally with the die assembly about the axis of the die assembly.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: April 28, 2015
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventors: Kazuyuki Hirata, Shirou Fujimura, Hajime Banno
  • Publication number: 20150107098
    Abstract: A shaft assembling structure includes a shaft hole formed on a motor rotor and a shaft with a shaft end sheathed on a shaft hole of the motor rotor. The shaft assembling structure further includes a direction setting member secured to the top of the motor rotor and embedded with the shaft, and at least one direction setting member disposed at the bottom of the shaft assembling structure and extended into the first direction setting portion of shaft hole. The shaft end of the shaft includes at least one second direction setting portion embedded into the corresponding first direction setting portion. When the second direction setting portion is aligned precisely with the first direction setting portion, the shaft hole of the motor rotor is sheathed on the shaft end of the shaft to facilitate the process of recognizing and confirming the rotating direction of the shaft.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 23, 2015
    Inventor: WEN-FU CHIANG
  • Patent number: 9003643
    Abstract: Certain embodiments of the invention may include systems for providing stator bar shape tooling. According to an example embodiment of the invention, a system for shaping an element is provided. The system includes tooling that having at least one constraining surface that is fabricated at least in part by selective laser sintering, where the at least one constraining surface includes at least one curved element section to facilitate bending of at least a portion of an element around the at least one curved element section.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventors: Caleb James Munholand, Mark Stephen Clough, Mark Kent Shoemaker, David John Wardell
  • Patent number: 8997334
    Abstract: An auxiliary tool for assembling a number of voice coil motors includes a number of trays, a rod member, and two limiting members. Each tray defines a through hole. The rod member passes through the through holes of the trays. The two limiting members are sleeved over the rod member at two ends of the rod member, the trays being between the two limiting members, each two neighboring trays being configured for clamping a respective one of the voice coil motors.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: April 7, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Tzu-Nan Chou
  • Publication number: 20150076959
    Abstract: The invention relates to a method of producing a rotor (10) of an electric machine, the rotor (10) comprising a rotor body (14) adapted to be rotated about a rotor axis (A) as well as at least one rotor component (16) to be mounted to the rotor body (14), said method comprising the steps of: arranging the rotor component (16) on the rotor body (14) and winding a wire-like structure (20) around an outer circumference (12) of the rotor body having the rotor component (16) arranged thereon so as to form a bandage (18), with the wire-like structure (20) during winding thereof being held under an adjustable bias.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 19, 2015
    Applicant: L-3 Communications Magnet-Motor GmbH
    Inventors: Peter Ehrhart, Jens Steffen, Anton Mueller
  • Patent number: 8978238
    Abstract: A method and apparatus for terminating stator windings. The apparatus includes stator winding termination disks having “U” shaped winding mouths for each group of stator winding ends. After winding the stator, the stator winding termination disks are laid over the termination end of the stator, the unterminated stator windings for one phase of the stator are placed into the “U” shaped winding mouths, the “U” shaped winding mouths are crimped over the unterminated stator windings, and pressure and heat are applied to melt insulation on the unterminated stator winding ends and form an electrical connection between the stator winding termination disks and stator windings for each phase of the stator and for common.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: March 17, 2015
    Inventor: Louis J. Finkle
  • Patent number: 8973251
    Abstract: A method of manufacturing a stator wherein a stator core is fixed by a centering jig, and in this state, a fixing hole is formed in a flange portion provided on a fastening ring for the stator core, using a central position as a reference for position, by drilling with a drill. The fixing hole is opened to be located at a distance relative to the central position. In a plan view, the fixing hole is opened at a predetermined central angle interval (for example, intervals of 120°) relative to the central position.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: March 10, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuhiro Endo, Tomohiko Miyamoto, Hiroaki Urano, Atomi Arakawa
  • Publication number: 20150061469
    Abstract: Provided herein, is an apparatus that includes a first weld attaching a first motor component and a second motor component, a second weld attaching the first motor component and the second motor component, and a plurality of spot welds along a joint between the first and second weld wherein the plurality of spot welds are configured to align the first motor component and the second motor component.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: Seagate Technology LLC
    Inventor: Chris M. Woldemar
  • Publication number: 20150059163
    Abstract: A wye ring centering system and method are provided. The system includes a plurality of rollers configured for contacting a wye ring, and a plurality of mounting fasteners configured for supporting the plurality of rollers. Each of the mounting fasteners is configured to pass through a fan hub. The plurality of rollers and the plurality of mounting fasteners are distributed at substantially equal intervals around the fan hub. The wye ring is placed over the plurality of rollers to center the wye ring around a shaft.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: General Electric Company
    Inventors: Ulrich Werner Neumann, Mark Randall Stewart
  • Publication number: 20150052736
    Abstract: A coil segment manufacturing apparatus includes a conducting wire material feeder which repeatedly feeds a conducting wire material while changing the feeding amount and interposing a processing time, a coating remover which removes an insulation coating of the conducting wire material at a removal position each time the processing time is reached, and a conducting wire material cutter which cuts the conducting wire material each time the processing time is reached.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Kanomi Hayashi, Shinichi Kawano, Daisuke Ueno, Satoru Saito
  • Patent number: 8952586
    Abstract: A component positioning structure for components received in a motor's shaft tube includes a base and a stator unit. The base has a shaft tube, and shaft tube has an opening end having a deformable portion. The stator unit is fitted to an outer circumferential wall of the shaft tube and has a pressing portion. The pressing portion abuts against the deformable portion and causes deformation of the deformable portion, allowing the deformable portion to reduce an inner diameter of the opening end.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 10, 2015
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventor: Alex Horng
  • Patent number: 8950058
    Abstract: It is described a method for producing and stacking lamina elements in an aligned manner, in particular lamina elements for a stator of an electrical generator. The method cutting out a first lamina element from a foil, transferring the first lamina element to a container by utilizing the gravitational force, cutting out a second lamina element from the foil or from a further foil, and transferring the second lamina element to the container on top of the first lamina element by utilizing the gravitational force. It is further described a cutting machine for producing lamina elements, a container for stacking lamina elements in an aligned manner and a system for producing and stacking lamina elements in an aligned manner.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: February 10, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Henrik Stiesdal
  • Patent number: 8943673
    Abstract: In compact drive, spiroid gear unit, and method for manufacturing a drive unit that includes at least an electric motor, a brake, a gear unit, and a frequency converter, the output shaft of the gear unit and the rotor shaft are positioned in parallel to each other, and the shaft-center distance is determined by at least one gear stage. The first gear stage includes a first toothed member connected to the rotor shaft, and a second toothed member, which engages with the first toothed member and is connected to an intermediate shaft, the brake, including at least a brake-rotor shaft, being integrated in the housing of the compact drive, the brake-rotor shaft being parallel to the rotor shaft, and the brake-rotor shaft being connected to a toothed member, which engages with the second toothed member.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: February 3, 2015
    Assignee: Sew-Eurodrive GmbH & Co. KG
    Inventors: Josef Schmidt, Bernhard Köhler, Thomas Leichter, Jochen Mahlein
  • Publication number: 20150026965
    Abstract: A system for rebalancing a generator rotor includes a temporary bearing shield configured to support a non-drive end of the generator rotor, and a pony motor assembly configured for attachment to a drive end of the generator rotor. The pony motor assembly is configured to rotate the generator rotor during a rebalancing operation. The temporary bearing shield and the pony motor assembly enable the generator rotor to be rotated during an in-situ rebalancing operation.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 29, 2015
    Applicant: General Electric Company
    Inventors: Ulrich Werner Neumann, Mark Randall Stewart
  • Publication number: 20150020376
    Abstract: An apparatus is provided for winding a laminated core with a magnet coil for an electric motor in which a conductive, insulated coil wire is wound into one or multiple pole tip grooves of a winding surface of the laminated core. The apparatus comprises a holding device, a counter holding device, and one or multiple clamping elements. The holding device is configured to fix the laminated core to be wound during a winding process. The one or multiple clamping elements are configured to fix an insulating paper to one of the one or multiple pole tip grooves.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 22, 2015
    Applicant: Robert Bowch GmbH
    Inventors: Wolfgang Brielmaier, Rainer Silberer, Gyoergy Mucsi, Juergen Hagedorn, Edmar Lopes, Heiko Wurster
  • Patent number: 8918986
    Abstract: A method (20) is described for making a stator (1) of an electric machine, the stator comprising a stator core (2), the stator core comprising a main body and a plurality of slots (8) which are axially extended inside the main body and are adapted to receive bar conductors. (5, 5?, 5?) of a bar stator winding. The method (20) comprises the steps of : inserting (23) at least one preshaped insulating sheet (10) inside at least one of said slots (8); hot shaping (26) said preshaped insulating sheet (10) inside the slot, along the entire axial extension of the slot (8) or along a substantial portion thereof, in order to confer form regularity and stability to said preshaped insulating sheet (10). Through the described process, it is possible to make stators with bar winding having a stator core with relatively high height and slot fill factor.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: December 30, 2014
    Assignee: Tecnomatic S.p.A.
    Inventor: Sante Guercioni
  • Publication number: 20140368068
    Abstract: A guiding device for coiling electrically conducting wires around an electrically conducting block of a rotor of an electric motor including a shaft extending axially in the rotor, the electrically conducting block including at least four notches for receiving wires. The guiding device includes at least two branches extending radially away from the shaft and disposed at 90° to one another, the branches being connected by an elastic linking mechanism.
    Type: Application
    Filed: November 22, 2012
    Publication date: December 18, 2014
    Applicant: RENAULT S.A.S.
    Inventors: Damien Birolleau, Nicolas Bruyere, Patrick Orval
  • Publication number: 20140360007
    Abstract: A method for producing stator pole teeth includes: arranging stator pole teeth to be wound in the form of a row, each of the stator pole teeth having at least one insulation body; winding one pole tooth or several pole teeth of the row of stator pole teeth; routing winding wire or winding wires out of a winding space in the pole teeth to the outside of the stator pole teeth into a laying space bounded on one side by insulation bodies of the pole teeth; and laying the winding wire or the winding wires in the laying space to connect individual pole teeth to one another. During laying of the winding wire or wires, the laying space is temporarily constricted such that the winding wires are forcibly automatically axially stacked in the laying space so as to avoid wire crossovers.
    Type: Application
    Filed: December 18, 2012
    Publication date: December 11, 2014
    Inventor: Uwe Schein
  • Patent number: 8893375
    Abstract: A method of manufacturing a stator core including stacking a plurality of teeth into a plurality of stacks, said teeth are obtained from a jigsaw pattern of said teeth, said teeth are substantially identical to each other in size, each said tooth is substantially T-shaped via two arms protruding sideways from a leg, said teeth substantially aligning with each other in each said stack; winding said stacks with a plurality of windings; placing said stacks along a perimeter of a polygonal inner surface of a ferromagnetic tube, said inner surface defining an inner space within said tube, each side of said polygonal inner surface corresponding to each said stack and contacting the bases of said legs of each said stack; inserting a shaft into said inner space, the top surfaces of said arms facing said shaft; vacuum encapsulating said inner space in an epoxy resin; removing said shaft.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: November 25, 2014
    Inventor: John Pairaktaridis
  • Publication number: 20140339949
    Abstract: A preformed coil (20) to produce a self-supporting air-gap skewed winding of a small electric motor consisting of at least two preformed coils (20) positioned overlapping on a circumference of a winding (6) and a method and device for producing the coil. Two preformed coil sides (24a, 24b) lying in different radial planes are formed which are connected on their front ends (26a, 26b) by front connections. The front connections feature the radial plane offset from the winding offset sections (28) bridging the preformed coil sides (24a, 24b). The preformed coil sides (24a, 24b) are formed curved with a circular shape around a longitudinal axis (16), and the radius of curvature of the one radial outer preformed coil side (24a) is greater than the radius of curvature of the radial inner preformed coil side (24b).
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: Dr. Fritz Faulhaber GmbH & Co. KG
    Inventors: Roland Keller, Armin Nagel, Andreas Holder, Markus Krumbein, Janos Puplics
  • Publication number: 20140338184
    Abstract: A method and assembly for forming a rotor include forming a rotor core having a plurality of voids and placing the formed rotor core into a die cavity. The method includes moving a plurality of support shoes to define an outer diameter of the die cavity, and injecting at least one of the plurality of voids with a magnetic slurry. At least one permanent magnet is formed from the magnetic slurry by applying pressure to the rotor core and the magnetic slurry within the die cavity and by applying a magnetic field to align the magnetic slurry. After forming the at least one permanent magnet within the rotor core, the plurality of support shoes are retracted and the rotor core removed with the at least one permanent magnet formed therein.
    Type: Application
    Filed: April 14, 2014
    Publication date: November 20, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Edward L. Kaiser, Amanda Luedtke, Peter J. Savagian, Sinisa Jurkovic
  • Publication number: 20140338188
    Abstract: A motor stator automatically assembling system includes a feeding unit, a wire-winding unit, a first conveyer unit, a second conveyer unit, a first assembly unit and a second assembly unit. A motor stator automatically assembling method includes: the feeding unit is operated to feed a plurality of insulation members; the insulation members are arranged on the first conveyer unit to convey to the wire-winding unit; the wire-winding unit is operated to wind wires on the insulation members to form a plurality of wire-wound insulation members; the wire-wound insulation members are arranged on the second conveyer unit to convey to the first assembly unit; the first assembly unit is operated to insert pole teeth into the wire-wound insulation members to form a plurality of compact pole tooth sets; the second assembly unit is operated to combine the compact pole tooth sets with a stator ring frame to form an assembled motor stator.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 20, 2014
    Inventor: Jung-Pei Huang
  • Patent number: 8875385
    Abstract: An apparatus for retaining a package of laminations of an electromagnetic core in a device (3) for the production thereof that is mounted into a panel (1) arranged at a distance from a yoke (2) of said device (3) for the production of individual laminations (4) and mutual joining of same into a package (5), wherein it comprises peripheral units like an aggregate for pressurized hydraulic oil, sensors, control unit and ejector.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 4, 2014
    Assignee: Univerza V Ljubljani
    Inventors: Marko Hladnik, Niko Herakovic
  • Patent number: 8869379
    Abstract: A method of producing a rotor includes crimping and stacking a plurality of core pieces through crimping connecting portions to form a rotor stacked core having a magnet-insertion hole and inserting a permanent-magnet pieces into the magnet-insertion hole. Further, the method also includes clamping the rotor stacked core between an upper die and a lower die, and filling a resin into the magnet-insertion hole from a resin reservoir pot which is formed in the upper die or the lower die. Also, the resin may be filled into the magnet-insertion hole while placing the crimping connecting portions at a center of the resin reservoir pot.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: October 28, 2014
    Assignee: Mitsui High-Tec, Inc.
    Inventors: Hirotoshi Mabu, Kohei Yoshida
  • Publication number: 20140304978
    Abstract: A flaring system for stator windings includes a base member, and a first cuff supported at the base member. The first cuff includes a first body having an inner annular surface that defines a first central opening. A second cuff includes a second body having an inner annular surface that defines a second central opening. A flaring guide includes an angled surface configured and disposed to rest upon the second body. A flare tool includes a flaring portion having an angled surface portion. The flaring portion is configured and disposed to extend between first and second stator winding layers of the a stator end turn portion with the angled surface portion urging one of the first and second stator winding layers radially outward against the angled surface of the flaring guide.
    Type: Application
    Filed: April 16, 2013
    Publication date: October 16, 2014
    Applicant: REMY TECHNOLOGIES, L.L.C.
    Inventor: James Paul Murphy
  • Publication number: 20140290044
    Abstract: A method for producing a round stator includes: inserting wound pole teeth into an insertion section of a rolling device to form a pole tooth row, pushing the pole tooth row into a ring section of the rolling device, which ring section reproduces a round end shape of the stator to form a round stator structure, removing the round stator structure from the rolling device while holding the stator structure together, and processing the stator structure further to form a finished stator unit.
    Type: Application
    Filed: October 30, 2012
    Publication date: October 2, 2014
    Inventors: Benjamin Maares, Uwe Schein
  • Patent number: 8844600
    Abstract: A rotary lamination apparatus has a rotary lamination turntable rotational about a vertical axis. A plurality of workpieces are rotated and laminated on the turntable. The turntable includes a support member that is arranged on an upper surface of the turntable, a plurality of rolling bodies mounted on the upper surface of the turntable, and a plurality of urging members for urging the rolling bodies upward. The support member is formed of material having a high friction coefficient. The rolling bodies are selectively movable between an upper position and a lower position. In the upper position, at least a portion of each of the rolling bodies is located above the upper surface of the support member. In the lower position, each rolling body is located below the upper surface of the support member. In the upper position, the rolling bodies support the workpieces movably in a lateral direction.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 30, 2014
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventor: Kazuyuki Hirata
  • Patent number: 8844118
    Abstract: A method of manufacturing a motor for a power tool includes providing an armature configured to be coupled to a shaft. The armature includes a yoke and a first tooth and a second tooth that extend radially outward from the yoke to define a slot between the first tooth and the second tooth. Each of the first tooth and the second tooth include an inner end adjacent the yoke and an outer end opposite the inner end. The method further includes coupling a first wire guide member to the outer end of the first tooth, coupling a second wire guide member to the outer end of the second tooth, winding wire into the slot, after winding wire into the slot, compressing the wire radially into the slot, uncoupling the first wire guide member from the first tooth, and uncoupling the second wire guide member from the second tooth.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: September 30, 2014
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Jeffrey C. Hessenberger, Alan Yeadon, Brandon Verbrugge, Michael Kolden, Dennis J. Cerney
  • Publication number: 20140259635
    Abstract: According to one embodiment, an assembly machine of a rotating electrical machine includes: a coil alignment portion that aligns coils, when aligning coils in a ring shape, such that one side of a circumferential direction in the ring is made to lay over a top surface side of an adjacent coil, and the other side of the circumferential direction of the coils is made to lay under a bottom surface side of an adjacent coil so as to form mutually overlapping regions in a thickness direction between the adjacent coils; an insertion part having columnar parts inserted into the interior of the mutually overlapping regions; and a pressing part which inserts the insertion part in an axial direction thereof, mutually overlapping in the thickness direction between the adjacent coils, from the insertion part into the interior of a slot in the core of the rotating electrical machine.
    Type: Application
    Filed: September 13, 2013
    Publication date: September 18, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Toshikazu TAKI, Tomohiro Kita, Yukihiro Ikeya, Mitsuhiro Fujii, Mineaki Iida
  • Publication number: 20140259647
    Abstract: A cutting machine for producing lamina elements includes a cutting mechanism for cutting out a first lamina element from a foil at a first position within the foil and for cutting out a second lamina element from the foil at a second position within the foil. With respect to a centerline of the foil the first position has a first distance and the second position has a second distance being different to the first distance. The cutting machine is adapted for releasing the cut out first lamina element and the cut out second lamina element, such that by utilizing the gravitational force the first lamina element and the second lamina element are transferred to a container, in which they are arranged in a stacked and in an aligned manner with respect to each other.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Henrik Stiesdal
  • Patent number: 8832925
    Abstract: An apparatus and a method for manufacturing a stator is disclosed. The stator includes a stator core having slots formed along an axial direction at a plurality of locations in a circumferential direction, and a coil formed by combining a plurality of rectangular wires that have a plurality of straight portions being disposed in the slots and arranged side by side in the circumferential direction and in a radial direction. A restriction jig having a number of restriction pieces is disposed on a first-end side of the coil in the axial direction. The coil is inserted into the stator core from the first-end side in the axial direction to dispose the straight portions in the slots. Circumferential positions of the straight portions are restricted along the axial direction through contact with the restriction pieces by relatively moving the restriction jig and the coil in the axial direction.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 16, 2014
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Tokuhisa Mishina, Shingo Hashimoto, Masaki Saito, Kazuya Iwatsuki
  • Patent number: 8826520
    Abstract: This disclosure describes embodiments of an apparatus for use to extract a rotor from a generator. The apparatus can include a central mount element that secures to the end of the rotor. A pair of support members coupled to the sides of the central mount element. The support members can include a load bearing element that permits travel of the apparatus on a surface, e.g., a platform proximate to the turbine generator. During implementation, the apparatus is configured to direct pulling forces along the center axis of the rotor to restrict movement of the rotor and, in particular, limit rotation of the rotor that can result in inadvertent contact with the stator or other parts of the generator.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: September 9, 2014
    Assignee: General Electric Company
    Inventors: Charles Vaughan Spanos, Charles Van Buchan, James Bradford Holmes
  • Patent number: 8826513
    Abstract: A twisting method is described, for twisting free end portions of bar conductors for the stator or rotor bar winding of an electrical machine. The twisting method allows achieving a non uniform twisting of the bar conductors from the welding side of the stator or rotor core by means of a twisting fixture. The twisting fixture comprises a pocket member including a main structure provided with an arc of adjacent pockets and a secondary structure, provided with at least one further pocket, which can axially translate with respect to the main structure.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: September 9, 2014
    Assignee: Technomatic S.p.A.
    Inventor: Sante Guercioni