Commutator Or Slip Ring Assembly Patents (Class 29/597)
  • Patent number: 10666004
    Abstract: A method for manufacture of a gold-plated slipring contact, comprising steps of galvanic deposition of a copper layer on the electrically-conductive substrate; of a nickel and/or nickel phosphor layer on the copper layer; and of a gold layer on the nickel and/or nickel phosphor layer.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: May 26, 2020
    Assignee: SCHLEIFRING GMBH
    Inventors: Christian Holzapfel, Peter Heinbuch, Sascha Christmann, Michael Ritz
  • Patent number: 10535934
    Abstract: The disclosed apparatus may include may include (1) a power socket receptacle that (A) fits within a via of a circuit board and (B) is inserted into the circuit board through one side of the via and (2) a power socket plug that (A) fits within the power socket receptacle and (B) is screwed into the power socket receptacle through another side of the via such that the power socket receptacle and the power socket plug collectively provide electrical continuity across the via. Various other apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: January 14, 2020
    Assignee: Juniper Networks, Inc.
    Inventors: Aliaskar Hassanzadeh, Darron L. Holley, Franklin D. Boyden
  • Patent number: 10439349
    Abstract: A rotor includes coils that are formed by winding wires around bobbins of a core, terminals which are arranged on the bobbins and to which end portions of the wires are hooked, and a commutator arranged at an end portion of the core on a side where the terminals are arranged. The terminals and commutator segments of the commutator are electrically connected via metal pieces extending from the commutator segments and via a wiring board.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: October 8, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Yoshitaka Ikitake
  • Patent number: 10389074
    Abstract: A slip ring unit for an electrically excited rotor of a rotary dynamo-electric machine includes an electrical terminal which protrudes axially from an end face of the slip ring unit and having a contact point and a circumferential slip contact surface electrically connected to the electrical terminal. Disposed adjacent to the slip contact surface is an insulation element, with end plates axially retaining the circumferential slip contact surface and the insulation element. An electrically insulated support element is arranged on an end face of the slip ring unit and has a cross section which substantially matches a cross section of the slip ring unit. The support element axially surrounds the electrical terminal and radially supports the electrical terminal.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: August 20, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Herbert Binder, Oliver Memminger
  • Patent number: 10340775
    Abstract: An apparatus used in terminating and winding coils of a core of a dynamo electric machine. The coils being formed from at least an electric wire and the core having a longitudinal axis. The coils are wound by relatively moving a wire dispenser with respect to a core with relative motions of translation and rotation; at least a stretch of wire extends from the coil; and the stretch of wire is provided with a portion for a termination connection to a termination structure of the core, such as a tang. The method avoids waste cut wire in the apparatus. The core is provided with a groove at an end to receive at least a wire in the path of the wire for the termination of the coils. The apparatus comprises a wire deflector positioned adjacent the end of the core, where the groove is located, in order to intercept and align the wire with the groove.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: July 2, 2019
    Assignee: ATOP S.p.A.
    Inventors: Massimo Ponzio, Maurizio Mugelli
  • Patent number: 10270321
    Abstract: An electric motor includes: brushes (31) that are brought into sliding contact with a commutator of an armature that is fixed to a rotation shaft and feeds electric power; a brush holder stay (33) that supports the brushes (31) via brush holders (41); noise prevention elements (110) that are electrically connected to the brushes (31); and terminals (130) and jump wires (141) that electrically connect between the brush holders (41) and the noise prevention elements (110), wherein first connection portions, which connect between the noise prevention elements (110) and the terminals (130), and second connection portions, which connect between the terminals (130) and the jump wires (141), are both disposed only on a first surface (S1) of the brush holder stay (33).
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: April 23, 2019
    Assignee: Mitsuba Corporation
    Inventors: Natsumi Tamura, Tomoo Iijima, Teppei Tokizaki, Satoshi Tamura
  • Patent number: 10236733
    Abstract: A magnetic mass of an electric machine rotor extending along a longitudinal axis and comprising a plurality of housings, each housing being able to receive a respective electrically conductive bar. The magnetic mass further comprises, on at least one portion of its length along the longitudinal axis, at least one opening extending radially from one of the housings and opening outwards along a radial direction, substantially perpendicular to the longitudinal axis.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 19, 2019
    Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LTD
    Inventors: Mathieu Bittermann, Graham Derek Le Flem
  • Patent number: 10177634
    Abstract: Provided is a structure for a slip ring and a brush of a WRSM capable of reducing an axial length of a motor by increasing a contact area between the slip ring and the brush and improving reliability for smoothly implementing performance of the motor by stably supporting a shaft of the motor, the structure including: an inner slip ring combined with a rotation shaft of a motor; a brush disposed at a circumference of the inner slip ring and having a plurality of wrinkles contacting an outer circumferential surface of the inner slip ring formed therein; an outer slip ring disposed at a circumference of the brush and making in contact with the plurality of wrinkles of the brush; and a holder that supports the outer slip ring.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 8, 2019
    Assignee: MANDO CORPORATION
    Inventor: Chung Seong Lee
  • Patent number: 10056727
    Abstract: A rotor of a dynamoelectric machine is provided, the rotor comprising a shaft, an essentially cylindrical armature, an armature coil comprising aluminum coil wires and a drum commutator, which comprises an insulating support body and conductor segments which are attached to said support body and fixed therein by means of armature sections. Said conductor segments each comprise a copper running surface area and a connection area made of aluminum or a metal which can be soldered with aluminum (aluminum-compatible metal) having a soldering tag which greatly projects over the brush running surface. Said coil wires are soldered to the end side to the soldering tag of the respectively associated conductor segments and to be precise, without directly contacting the areas of the running surface.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: August 21, 2018
    Assignee: SIEVA D.O.O.—POSLOVNA ENOTA IDRIJA
    Inventors: Silvo Jesenko, Klemen Petric, Ludvik Kumar
  • Patent number: 9985401
    Abstract: A brush holder has a core side position regulator engaged with a first connection plate to regulate a relative position. The core side position regulator has a projection part projected toward an armature core in the axial direction, and a fitting groove portion defined on both sides of the projection part in a circumferential direction. The relative position in the circumferential direction is regulated by an engagement between the projection part and a slit of the first connection plate. The relative position in the axial direction is regulated by an engagement between sides of the slit and the fitting groove portion. A width of the projection part in the circumferential direction is larger than a width of a brush in the circumferential direction.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 29, 2018
    Assignee: DENSO CORPORATION
    Inventor: Takashi Hirabayashi
  • Patent number: 9867293
    Abstract: A method of controlling alloy composition of deposited gold-tin alloy during electroplating of a large panel includes masking at least one planar surface of the panel with conductive material applied in a predetermined pattern. The masked panel is located at least partially within an electroplating solution including a gold-tin alloy in solution at a predetermined gold:tin ratio. Electrical current applied to the masked panel is conducted across the planar surface via the conductive material to induce a predetermined electrical current distribution across the planar surface and thereby pull gold ions and tin ions from the electroplating solution. The pulled ions are deposited upon a supermajority of an unmasked area of the masked panel. The predetermined pattern is selected to achieve deposition of the gold-tin alloy with substantially uniform alloy composition, directly corresponding to the predetermined gold:tin ratio, across the supermajority of the unmasked area of the masked panel.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 9, 2018
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: Jerry T. Fang
  • Patent number: 9800120
    Abstract: Disclosed is a motor, the motor according to an exemplary embodiment of the present disclosure including a stator arranged at an inner surface of a housing and including a magnet, a rotor core centrally arranged at the stator to pass through a rotation shaft, a rotor including an insulator covering the rotor core and a coil wound on the insulator, a commutator coupled to the rotation shaft to be electrically connected to the coil, and a brush coupled to the housing to be closely contacted to the commutator, wherein the insulator is formed with a short-circuit prevention unit formed on a drop path of conductive particles in order to prevent the short-circuit between the rotor core and the commutator from being generated by the conductive particles generated by the commutator and the brush.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: October 24, 2017
    Assignee: LG INNOTEEK CO., LTD.
    Inventor: Woo Seob Shim
  • Patent number: 9773608
    Abstract: A transformer includes a transformer core, a first wire, which forms a first winding, and a second wire, which forms a second winding. The first and second windings are wound around the transformer core. A preformed insulation structure is arranged between the first and second winding and designed to space apart the second winding from the first winding and the transformer core. The preformed insulation structure further includes a first shell which at least partially encloses the transformer core with the first winding, and a second shell which at least partially encloses the transformer core with the first winding. The first and second shells are identical. One or more holes are defined in the first shell and the second shell. The one or more holes cover more than 10% of a surface of the preformed insulation structure.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: September 26, 2017
    Assignee: CT-Concept Technologie GmbH
    Inventors: Markus Rätz, Olivier Garcia, Sascha Pawel, Jan Thalheim
  • Patent number: 9601967
    Abstract: A motor assembly includes: a motor housing including: at least one brush receptacle having top and bottom ends; a locking element extending from the top end toward the bottom end; and a housing spring member; at least one brush holder apparatus including: a brush holder housing sized to be received within the brush receptacle, including: an upper surface and a lower surface; a receiving aperture; and an open end; a brush spring enclosed by the brush holder housing; and a brush located inside the brush holder housing; wherein the brush holder apparatus is inserted inside the brush receptacle; and wherein the housing spring member urges the brush holder apparatus toward the top end such that the locking element is received inside the receiving aperture.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: March 21, 2017
    Assignee: The Scott Fetzer Company
    Inventor: Daniel K. Amonett
  • Patent number: 9419501
    Abstract: The present invention relates to a brush holder assembly for use with rotating electric machines. The brush holder assembly is used as a grounding mechanism to remove dangerous and damaging static charges and extraneous electric currents from the shafts primarily of the rotating electric machines.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 16, 2016
    Assignee: Phoenix Electric Mfg. Co.
    Inventors: John Bank, Alex Aguayo, Doug Bank
  • Patent number: 9214777
    Abstract: An electrical swivel system may have a movable swivel member adapted to connect to a landing gear and a fixed swivel member adapted to connect to an airframe. Each may have an interface apparatus whereby electrical signals may be conducted between components of the movable swivel member and the fixed swivel member. In this manner, electrical signals may be conveyed across a mechanically movable joint.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 15, 2015
    Assignee: GOODRICH CORPORATION
    Inventor: Derek C Milsom
  • Patent number: 9145298
    Abstract: A reformer furnace (1), comprising: at least one triple conduit assembly (200), including a flue gas conduit (220) enclosing a reaction conduit (240) enclosing a product gas conduit (260), wherein: the reaction conduit (240) extends between a lower end (244) defining a reaction gas inlet (245), and a closed upper end (242); the product gas conduit (260) extends between an upper end (262) defining a product gas inlet (263), and a lower end (264) defining a product gas outlet (265); the flue gas conduit (220) extends between an upper end (222) defining a flue gas inlet (223), and a lower end (224) defining a flue gas outlet (225); and an annulus (250) between the reaction conduit (240) and the product gas conduit (260) comprises a catalyst (252); a combustion chamber (100) that encloses an approximate upper half (226, 246, 266) of the at least one triple conduit assembly (200) while an approximate lower half (228, 248, 268) thereof resides outside of and below the combustion chamber, and that includes at least
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: September 29, 2015
    Assignee: STAMICARBON B.V.
    Inventors: Paola Volpi, Barbara Morico, Lorena Mosca, Cristina Guazzotti, Fabio Prosperi, Gaetano Iaquaniello
  • Publication number: 20150145362
    Abstract: An end plate for an electric machine includes: a bearing receptacle in which a magnetic bearing which is configured for rotatably mounting a rotor of the electric machine can be accommodated; and a radially outwardly pointing circumferential contour on which a number of at least three supporting elements are provided, which supporting elements each protrude radially beyond the circumferential contour by a determined protruding amount, with the result that the supporting elements define a discontinuous external circumferential contour of the end plate. The respective protruding amounts of the support elements are dimensioned such that the end plate can be fitted in by making a center of the magnetic bearing correspond to at least one of a geometric longitudinal axis of the electric machine and a magnetic longitudinal axis of the electric machine.
    Type: Application
    Filed: May 28, 2013
    Publication date: May 28, 2015
    Inventors: Gino Kabs, George Kleynhans, Markus Dettwyler, Marcel Vetter
  • Publication number: 20150143689
    Abstract: Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Inventors: Robert S. Cutsforth, David L. Cutsforth
  • Publication number: 20150137658
    Abstract: A commutator is formed by providing an electrically insulating commutator body. First and second areas are defined on the commutator body covering a brush contact surface in an alternating manner. At least the surfaces of the first areas are formed of laser direct structured material. The first areas are treated by a laser to form metal particle layers. Conductive layers are formed on the metal particle layers by a plating process to form commutator segments. Terminals are connected to the conductive layers for connecting the commutator to rotor windings.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventor: Wilfried GORLT
  • Patent number: 9021684
    Abstract: A process of fabricating a slip ring component, a slip ring component, and a slip ring assembly are disclosed. The process includes forming a first shot, forming a second shot, and immersion bathing the first shot and the second shot. The immersion bathing applies an electrically conductive plating to exposed surfaces of the second shot.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: May 5, 2015
    Assignee: Tyco Electronics Corporation
    Inventors: William Gary Lenker, Gregory Gordon Griffith, Edward John Howard
  • Publication number: 20150101180
    Abstract: A method for repairing or servicing a wye ring of a generator includes the steps of, dismantling the generator to gain access to the wye ring, determining a fault location in the wye ring; and attaching a patch to the wye ring in an area of the fault location. The patch provides an electrical path around the fault location so that the generator is repaired.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Applicant: General Electric Company
    Inventors: Ulrich Werner Neumann, Brent Hamilton Holloway
  • 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
  • Publication number: 20140375062
    Abstract: The invention concerns a method of reconditioning a slip ring transmitter of the gold wire type which has a slip ring, in particular a gold ring, for use with a gold wire board as the circuit board, including the steps: removing a gold wire board from the slip ring transmitter, and fitting a multi-brush board as a replacement for the gold wire board.
    Type: Application
    Filed: January 11, 2013
    Publication date: December 25, 2014
    Inventor: Alfred Beekmann
  • Publication number: 20140360008
    Abstract: A method of manufacturing an armature for an electric motor, includes: placing a commutator and a lamination stack on an armature shaft, winding magnet wire in slots in the lamination stacks to form coils, attaching ends of the magnet wire to the commutator, and molding plastic around the magnet wire and around the shaft of the armature at ends of the lamination stack. A spinning inertia of the armature is adjusted by adjusting at least one of a mass of the plastic molded and a distribution of the plastic molded. Alternatively and/or additionally, at least one of a resonant frequency and critical speed of the armature is adjusted by adjusting at least one of a geometry of the plastic molded, the physical properties of the plastic and the mechanical properties of the plastic.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Inventors: Hung T. Du, Brandon L. Verbrugge, Joshua F. West, Michael R. Sell, Richard T. Walter, David J. Smith, Earl M. Ortt, John C. Stone, Howard T. White
  • Publication number: 20140346922
    Abstract: A motor includes a brush configured to contact a commutator and a movement restricting structure configured to restrict a movement of the brush. The movement restricting structure has: a carbon holder for housing the brush while permitting a movement of the brush in the commutator radial direction; and a circumferentially restricting part for restricting a movement of the brush in the commutator circumferential direction. The circumferentially restricting part has a passing port formed by punching, through which the brush passes.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Applicant: MABUCHI MOTOR CO., LTD.
    Inventors: Atsushi Yoshida, Hisashi Ogino
  • Patent number: 8887378
    Abstract: A flat commutator having a support body, carbon segments, and conductor segments. The support body is formed on a carbon ring disk, which is later separated into carbon segments that are insulated from one another, the support body sitting against the carbon ring disk radially outward, radially inward, and against the end face of the carbon ring disk, the end face lying opposite the brush contact surface. The conductor segments are subsequently applied individually such that a contact pin of each segment penetrates a cavity that extends from the support body surface lying opposite the brush contact surface to the surface of the segments or of the carbon ring disks, the surface lying opposite the brush contact surface; and the free end of the contact pin contacts the surface of the segments or of the carbon ring disk, the surface lying opposite the brush contact surface.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: November 18, 2014
    Assignee: Kolektor Group D.O.O.
    Inventors: Marjam Drmota, Damjan Kumer, Silvester Jesenko
  • Patent number: 8847462
    Abstract: The invention relates to a rotor that exhibits a rotor shaft, by which a rotor axis is defined, and also a core stack that is arranged around the rotor shaft along a longitudinal portion of the rotor axis. Along the longitudinal portion the rotor shaft exhibits a first surface region, the shape of which describes a circular cylinder, and also a second surface region which is constituted by structural elements that with respect to the rotor axis rise radially outwardly above the first surface region. For the purpose of producing the rotor, the core stack can be pushed over the rotor shaft and in the process can be pushed against the structural elements) in such a manner that it is deformed and by this means a positive connection between the rotor shaft and the core stack is generated. In this way, in particularly simple manner in terms of production engineering a reliable and torsion-proof connection between the core stack and the rotor shaft can be formed.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 30, 2014
    Assignee: Hirschvogel Umformtechnik GmbH
    Inventor: Robert Filgertshofer
  • 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: 20140252897
    Abstract: In an electric motor apparatus including an electric motor (13), a speed-reduction mechanism (14) which transmits motive power of the electric motor (13), a housing (15) which accommodates the speed-reduction mechanism (14) and the electric motor (13), and a yoke (16a) fixed to an outer portion of the housing (15), the housing (15) is provided with a concave portion (21), a holding hole (18a), and an accommodation chamber (15a). A connector unit (25) is moved along the first direction and installed to a concave portion (21). A brush holder (26) is moved along the second direction and installed to the holding hole (18a). The speed-reduction mechanism (14) is moved along the first direction and accommodated in the accommodation chamber (15a). The yoke (16a) is moved along the second direction and fixed to the housing (15). Therefore, no restriction is imposed on the routing of an external connector connected to the connector unit (25).
    Type: Application
    Filed: October 31, 2012
    Publication date: September 11, 2014
    Inventors: Kenji Yasumoto, Teppei Tokizaki, Shigeki Ota
  • Publication number: 20140217851
    Abstract: An electric machine and a method of forming a commutator for an electric machine includes forming a commutator assembly including a plurality of commutator bar members linked through a corresponding plurality of bridge elements, rolling the commutator assembly into a commutator form having a substantially continuous, uninterrupted, outer surface, introducing an internal support member that receives an end portion of each of the plurality of commutator bar members into an inner diameter of the commutator form, and separating the plurality of commutator bar members by removing each of the plurality of bridge elements creating a discontinuous outer surface.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 7, 2014
    Applicant: REMY TECHNOLOGIES, L.L.C.
    Inventor: Michael D. Bradfield
  • Patent number: 8720042
    Abstract: A stator manufacturing method which manufactures an insulated conductor coil and mounts this coil to the core, the insulated conductor coil being formed by deforming an insulated conductor into a shape having rectilinear in-slot conductor sections and coil end sections having bent sections, the conductor having an enamel layer formed on the outer periphery thereof and also having an extruded resin coating layer formed on the outer periphery of the enamel layer, comprises: a first step of forming the conductor coil by deforming the conductor to form the bent sections while the coating layer of the conductor is in a non-crystalline resin state; a second step of heating the extruded resin coating layer of the conductor coil to change into a crystalline resin state to a temperature higher than or equal to the glass transition temperature; and a third step of mounting the conductor coil to the core.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 13, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideaki Kimura, Hiroaki Urano
  • Publication number: 20140070662
    Abstract: There is provided an electric motor and a manufacturing method of the electric motor capable of joining a brush and a commutator without placing load on components. An electric motor is formed at a side of a brush holder 13 with a second notch unit 32, and a groove unit 36 is formed on a brush 12 so that it overlaps the second notch unit 32 in the position where the brush 12 stored in the brush holder 13 does not abut against a commutator 8. By doing so, when joining the brush 12 and the commutator 8, the brush 12 may be temporarily fixed with respect to the brush holder 13 by pushing in the brush 12 in the brush holder 13 and coinciding the second notch unit 32 and the groove unit 36, and fixing a jig and the like to the groove unit 36 in this state.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 13, 2014
    Applicant: KITASHIBA ELECTRIC CO., LTD.
    Inventor: Hiroshi SHIRASAKA
  • Publication number: 20140070661
    Abstract: An electrical machine (1). The electrical machine (1) has a commutator (3), a brush (5) and a spring. In this case, the brush (5) is designed to make contact with the commutator (3). The spring is provided for the purpose of pressing the brush (5) against the commutator (3). In this case, the spring is designed as a coil spring (7) with a first coil strip (9) and a second coil strip (11).
    Type: Application
    Filed: September 10, 2012
    Publication date: March 13, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Ina Constantinides, Paul Skljarow, Frank Kraft
  • Publication number: 20140070660
    Abstract: A commutator (10, 40, 54, 60, 64, 70, 76, 78) for a brush motor includes a cylindrical insulating base (12), a plurality of segments (14) disposed on an outer surface (68) of the insulating base (12), circumferentially spaced from each other, and defining a plurality slots (42) between adjacent segments (14), and a plurality of insulating outgas elements (24) capable of releasing a gas having a lower conductivity than air and disposed on the outer surface (68) of the cylindrical insulating base (12). Each outgas element (24) is located between a corresponding pair of the plurality of segments (14), having a gas releasing surface (26) between the corresponding pair of segments (14) and lower than outer surfaces (28) of the corresponding pair of segments (14). A method for making a commutator is also provided.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: Johnson Electrics S.A.
    Inventors: James Ching Sik LAU, Wilfried GORLT
  • Patent number: 8643232
    Abstract: A stator manufacturing method for a motor includes an assembling step coupling a magnetic driving assembly onto an outer circumferential wall of a shaft tube, a mold combining step disposing the shaft tube and the magnetic driving assembly in an intra-cavity of a fixture unit, a glue injecting and forming step injecting a filling glue into the intra-cavity, with the filling glue solidifying into a protective glue coating with which the shaft tube and magnetic driving assembly are coated, a mold removing step removing the fixture unit from the shaft tube, magnetic driving assembly and protective glue coating, and a shaft tube seat coupling step providing a shaft tube seat having an engaging portion and coupling the engaging portion with the shaft tube, allowing the shaft tube, the magnetic driving assembly, the protective glue coating and the shaft tube seat to be coupled together to form a stator for the motor.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: February 4, 2014
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Ching-Sheng Hung, Kun-Li Hsieh, Shu-Hui Chang
  • Patent number: 8635760
    Abstract: In a method for producing a commutator ring for a commutator of an electric machine, the lamellae of a commutator ring are formed of an electrically conductive, deformable band material, and they have at least one recess running in the longitudinal direction of the band material, before a desired number of the formed lamellae are closed to form the commutator ring. After the closing of the lamellae to form the commutator ring, a reinforcing ring made of an electrically nonconductive, deformation-resistant material is introduced into the recess and is fixed in the recess by plastic deformation of the lamellae of the commutator ring.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: January 28, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Olaf Pflugmacher, Christian Anders, Wolfgang Hecht, Normen Sach
  • Publication number: 20140009027
    Abstract: A plurality of teeth of an armature core arranged in a circumferential direction each include an inner winding portion in its proximal region and first and second branch portions that extend radially and branch off in a bifurcated manner from a distal end of the inner winding portion in the circumferential direction. After winding the first to ninth coils around the inner winding portions of all of the teeth, the tenth to eighteenth coils are wound sequentially around outer winding portions of adjacent ones of the teeth each including the first branch portion of one of the two adjacent teeth and the second branch portion of the other one of the adjacent teeth.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 9, 2014
    Inventors: Keita KAWAI, Tomohisa OKAMOTO, Takehiko OHSHITA
  • Publication number: 20130342072
    Abstract: A method of force-fitting a commutator (3) onto the shaft (2) of a rotor. This force-fitting is over an externally knurled part (6) of one end (4) of the shaft. The force-fitting is performed in such a way that the externally knurled part remains located on the outside of a first portion (A) of the commutator supporting the slip rings (8). According to another feature, an internally knurled part (9) of the commutator, situated essentially on the outside of the first portion (A), is force-fitted over an externally plain part (7) of the end of the shaft. The method has the notable advantage of allowing longer brush life. The method is particularly well suited to applications to a motor vehicle alternator or alternator-starter.
    Type: Application
    Filed: November 10, 2011
    Publication date: December 26, 2013
    Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Gregory Godefroy, Christophe Dugue, Khalid Sassane
  • Publication number: 20130323038
    Abstract: An assembly for use in a gas turbine engine includes an inner diameter (ID) shroud having a plurality of ID slots and an outer diameter (OD) shroud having a plurality of OD slots and positioned radially outward from the ID shroud. A plurality of stator airfoils extend from the ID shroud to the OD shroud. Each of the stator airfoils is positioned at least partially in one of the ID slots and is positioned at least partially in one of the OD slots. A bumper is positioned proximate a first end of each of the stator airfoils so as to limit movement of the stator airfoils in a radial direction.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Steven J. Feigleson, David P. Dube
  • Publication number: 20130291371
    Abstract: A method of manufacturing an armature for an electric motor, includes: placing a commutator and a lamination stack on an armature shaft, winding magnet wire in slots in the lamination stacks to form coils, attaching ends of the magnet wire to the commutator, and molding plastic around the magnet wire and around the shaft of the armature at ends of the lamination stack. A spinning inertia of the armature is adjusted by adjusting at least one of a mass of the plastic molded and a distribution of the plastic molded. Alternatively and/or additionally, at least one of a resonant frequency and critical speed of the armature is adjusted by adjusting at least one of a geometry of the plastic molded, the physical properties of the plastic and the mechanical properties of the plastic.
    Type: Application
    Filed: November 1, 2012
    Publication date: November 7, 2013
    Inventors: Hung T. Du, Brandon L. Verbrugge, Joshua F. West, Michael R. Sell, Richard T. Walter, David J. Smith, Earl M. Ortt, John C. Stone, Howard T. White
  • Publication number: 20130263439
    Abstract: A description is given of a method for producing a stator for an electrical machine as an internal rotor, in particular an electric motor. This method involves providing a multiplicity of separate pole teeth, which are wound. The ends of the winding wire of the pole teeth are connected to one another to create a flexible annular pole tooth assembly, and the flexible assembly is inserted into an injection mould and centered. The assembly located in the mould is encapsulated or sealed in a moulding compound. In this way, a dimensionally stable stator with particularly good insulating properties can be produced.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 10, 2013
    Inventors: Rüdiger Brandau, Kurt Siebald
  • Patent number: 8528192
    Abstract: A fixture for removing slip ring assemblies from rotating electrical machinery. The fixture attaches directly to the slip ring assembly through bolted connection points for ease of installation and removal. A jacking mechanism provides mechanical leverage to pry the slip ring from its heat-shrunk fit mounting location in a manner that is reliable and safe for the service worker and the slip ring assembly. The fixture is lightweight and portable, facilitating use with electrical generators in the field and especially with wind turbine generators located on a wind turbine tower.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 10, 2013
    Assignee: General Electric Company
    Inventors: Timothy W. Jayko, Michael G. McClure
  • Patent number: 8510930
    Abstract: A manufacturing method of shield type motor includes the following steps: a): providing an iron core; b): providing a plastic shell and having the exterior face of the plastic shell press against the interior face of the iron core; c): providing a plurality of connected enamel-covered coils for being wound around the bobbin; d): providing a wire fastener for bundling the first material of plastics and the second material of plastics; e): providing a protecting jacket to be connected to the plastic shell and for containing the plurality of enamel-covered coils; f): providing a mold to let the iron core place in the mold and having the first material of plastics teem into the mold; g): having the second material of plastics teem into the mold; and h): removing the mold to expose a main body.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 20, 2013
    Inventor: Fang-Fu Chang
  • Patent number: 8499438
    Abstract: An apparatus for joining a wire pair of a stator coil. The apparatus includes a tool having a pair of electrodes and control equipment. The control equipment is configured to control the electrodes to apply force to the wire pair to push adjacent wires of the wire pair toward each other and cause current to pass between the pair of electrodes, and so through the wire pair pushed together, at a time at which the force is being applied to the wire pair.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: August 6, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: John S. Agapiou, John Patrick Spicer, Stephen R Smith, Jeffrey A Abell
  • Publication number: 20130193795
    Abstract: A direct-current motor includes a yoke having six magnetic poles, an iron core having nine teeth, first and second coils wound about each tooth in directions different from each other, a commutator for being rotated integrally with the iron core and having eighteen commutator pieces, and three pairs of brushes. The brush having the positive pole electrically connected to the first coil is different from the brush having the positive pole electrically connected to the second coil, the brush having the negative pole electrically connected to the first coil is different from the brush having the negative pole electrically connected to the second coil, or the brush having the positive pole and the brush having the negative pole that are electrically connected to the first coil are respectively different from the brush having the positive pole and the brush having the negative pole that are electrically connected to the second coil.
    Type: Application
    Filed: October 29, 2012
    Publication date: August 1, 2013
    Applicant: ASMO CO., LTD.
    Inventor: ASMO CO., LTD.
  • Patent number: 8484827
    Abstract: A method of assembling a hand held electrically powered drilling and/or hammering tool having a tool housing and a drilling and/or hammering spindle mounted within the housing. The spindle has a forward end at which a tool or bit may be mounted. The method of assembly includes the steps of making a motor sub-assembly including a motor and a radial fan, the fan has a plurality of blades located on one side of the fan and non-rotatably mounting the fan on an end of the armature shaft of the motor at a first end of the motor with the blades facing away from the armature of the motor. The method further including balancing the motor sub-assembly, and mounting the sub-assembly within the housing, with the longitudinal axis of the motor armature shaft at an angle, preferably perpendicular to the longitudinal axis of the spindle and with the first end of the motor closest to the spindle axis.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: July 16, 2013
    Assignee: Black & Decker Inc.
    Inventors: Heinz-Werner Faatz, Thomas Stanke, Ernst Staas, Rosie Wache
  • Patent number: 8443509
    Abstract: A method of preparing a plurality of bar-wound stator conductors for electrical interconnection includes inserting the plurality of conductors into a stator, twisting a conductor such that a first conductor of a first row is adjacent to a second conductor of a second row; trimming the adjacent first and second conductors to a common length using a trimming device; and grinding the trimmed first and second conductors to a pre-determined surface profile using a rotary cutting tool.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: May 21, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Urban J. De Souza, Richard M. Kleber, Justin Hanson, Frederick W. Rhoads, John D. Campbell
  • Patent number: 8434212
    Abstract: A stator coil producing method and a stator coil production machine. The stator coil is used in an electric rotating machine. The stator coil production machine includes a rotary retainer which retains and moves shaping press pairs along a looped path to press or shape portions of a conductor wire into in-slot portions to be disposed in slots of a stator core and coil-end portions which extend outside the slots. The method comprises a coil-end portion shaping step of bringing press members of each of the shaping press pairs close to each other in sequence to shape the coil-end portions and an in-slot portion shaping step of advancing the shaping press pairs on the looped path in contact with the cam mechanism and also moving selected ones of the shaping press pairs in sequence in a direction perpendicular to the path to shape the in-slot portions.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: May 7, 2013
    Assignee: Denso Corporation
    Inventors: Daisuke Okushita, Yusuke Hara, Takao Takeuchi, Kiyokazu Futami, Satoshi Nakamura, Fumihiro Nakano
  • Patent number: 8418350
    Abstract: A method for forming a secondary for a motor, for instance a linear drive motor, includes providing a sheet of highly magnetic permeable material with a plurality of slots extending through the sheet spaced along a length of the sheet. The slots define a plurality of teeth in the sheet and enable the sheet to be conformable to a mounting surface when forming the secondary of the motor. The top surface of the sheet has a plurality of pockets formed adjacent the plurality of slots. The pockets extend parallel to the width and are spaced along the length of the sheet. The pockets form a sensor operatively connected to a control of the motor. The sensor may be an encoder, and/or operatively connected to a control for controlling commutation of the motor, and/or setting positional limits, absolute positional information, and/or providing information about the sheet.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: April 16, 2013
    Assignee: Baldor Electric Company
    Inventors: Glenn S. Trammell, Rui Qiao