By Assembling Coil And Core Patents (Class 29/606)
  • Patent number: 10278279
    Abstract: A power adapter device may include a power field effect transistor (FET), a transformer including a radiant heat exchanger, and electrical conductors coupled between the power FET and the transformer. The electrical conductors may transfer heat generated by the power FET from the power FET to the transformer. The radiant heat exchanger may dissipate a portion of the heat to cool the power FET. As such, the radiant heat exchanger may function as a heat sink for the power FET, enabling efficient heat dissipation using a compact design.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 30, 2019
    Assignee: Dell Products L.P.
    Inventors: Andrew Thomas Sultenfuss, Travis C. North
  • Patent number: 10170231
    Abstract: The present invention relates to a choke with two coils and a core for interleaved applications in step-up or step-down circuits or power factor compensation circuits. The core comprises several core sections with several lateral legs and a middle leg, whereby the core is designed such, that a coupling factor k of the two coils is smaller than 3%-5%. Furthermore, the core is designed such, that the core section form two loops with the middle leg as a common section, whereby each of the two coils lies on different loops outside of the common section. The lateral legs have a cross section A1 and the middle leg for the common section has a cross section A2<2×A1.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 1, 2019
    Assignee: Sumida Components & Modules GmbH
    Inventors: Johann Winkler, Ernst Holzinger, Robert Ludwig, Iyad Kebaisy, Herbert Jungwirth
  • Patent number: 10153071
    Abstract: The present invention relates to a method and an apparatus for producing superconducting devices and to superconducting devices. The method comprises determining one or more regions of reduced critical current density in the superconducting device and modifying the critical current density in the one or more regions of reduced critical current density, so as to increase the overall critical current or to decrease the overall AC losses of the superconducting device. The modifying comprises modifying the amount and/or distribution of the superconducting material in the one or more regions of reduced critical current density; and/or modifying the chemical composition of the superconducting material in the one or more regions of reduced critical current density; and/or decreasing the cooling temperature in the one or more regions of reduced critical current density. A superconducting device formed according to such method can also be provided.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: December 11, 2018
    Inventors: Victor Manuel Rodriguez Zermeno, Bernhard Holzapfel
  • Patent number: 10105811
    Abstract: An eddy current monitoring system may include an elongated core. One or more coils may be coupled with the elongated core for producing an oscillating magnetic field that may couple with one or more conductive regions on a wafer. The core may be translated relative to the wafer to provide improved resolution while maintaining sufficient signal strength. An eddy current monitoring system may include a DC-coupled marginal oscillator for producing an oscillating magnetic field at a resonant frequency, where the resonant frequency may change as a result of changes to one or more conductive regions. Eddy current monitoring systems may be used to enable real-time profile control.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: October 23, 2018
    Assignee: Applied Materials, Inc.
    Inventors: G. Laurie Miller, Boguslaw A. Swedek, Manoocher Birang
  • Patent number: 10098189
    Abstract: An induction cooking heater including an inductor having a number of magnetic field concentration bars located beneath the inductor. The inductor having the magnetic field concentration bars is supported by a polymeric frame. The polymeric frame includes a first support element on which the inductor is wound and a second support element that supports the magnetic field concentration bars. The first support element and the second support element are assembled together through a central ring-shaped zone having a snap engagement. The inductor is wound on an upper surface of the first support element opposite to the second support element.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 9, 2018
    Assignee: Whirlpool Corporation
    Inventor: Fabiano Chinazzo
  • Patent number: 9928954
    Abstract: A bond-wire transformer for an RF device is described. The primary and secondary circuits of the bond-wire transformer are formed using loops formed with a pair of normal profile and low profile bond-wires. This results in improved efficiency and higher power operation.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 27, 2018
    Assignee: Ampleon Netherlands B.V.
    Inventor: Vittorio Cuoco
  • Patent number: 9852845
    Abstract: In order to provide an air core coil fitting apparatus that can automatically fit an air core coil onto a core, an air core coil fitting apparatus includes a holding member, a coil fitting rod, a rod driving member, a pushing member, and a sending member. The holding member holds a core main body that is formed in a ring shape, has a gap extending through the core main body from an inner circumferential face to an outer circumferential face thereof, and allows an air core coil wound in advance to be fitted onto the core main body from one end thereof. On the coil fitting rod, the air core coil that is to be fitted onto the core main body held by the holding member is fitted. The rod driving member brings a front end of the coil fitting rod close to or into contact with the one end of the core main body held by the holding member. The pushing member pushes the air core coil fitted on the coil fitting rod, toward the one end of the core main body.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: December 26, 2017
    Assignee: SHT Corporation Limited
    Inventors: Tsunetsugu Imanishi, Masafumi Inoue, Yasuomi Takahashi, Hitoshi Yoshimori
  • Patent number: 9818526
    Abstract: A wound core for stationary induction apparatus is provided that includes a wound core body, the core body being configured with laminated metal ribbons and provided in an upright manner, and a uniting binder provided on the outer circumference of the wound core body more sparsely toward the upper portion of the core body.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 14, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Satake, Koji Sasaki, Chie Kobayashi
  • Patent number: 9761373
    Abstract: The invention proposes a method of producing induction components. A plurality of coils are embedded, with predetermined orientation of the coil ends, in a block made of in particular pulverulent substrate. The block is positioned on a plate having a marking for each coil. The combination made up of block and plate is pressed. The winding ends are exposed by milling and provided with contacts. The block is then sawn up mechanically into individual elements each containing a coil.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: September 12, 2017
    Assignee: Würth Elektronik eiSos GmbH & Co. KG
    Inventors: Markus Stark, Klaus Richter, Dorian Degen
  • Patent number: 9721715
    Abstract: Solid state components having an air core and methods of producing such components are presented. An air core component preferably has lower conducting bands, upper conducting, and conducting posts that collectively form a conducting coil. A coating material placed at least over the upper bands of the coil provides structural support for the coil. The coil can be built around or in a sacrificial core material that can be removed leaving an air core behind.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: August 1, 2017
    Assignee: 2Sentient Inc.
    Inventors: Henry Roskos, Fredrick Quincy Johnson
  • Patent number: 9609756
    Abstract: A method includes aligning a first portion of a magnetic core with respect to a first side of a PCB using a first alignment device. The method includes applying a first bonding material to a surface of at least one of the first portion of the magnetic core and a second portion of the magnetic core. The method further includes coupling a second alignment device that retains the second portion of the magnetic core to the first alignment device. When the first alignment device and the second alignment device are coupled, the first portion and the second portion of the magnetic core are retained in a specified assembly position. The specified assembly position includes a specified gap between the first portion and the second portion of the magnetic core. The method also includes curing the first bonding material.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: March 28, 2017
    Inventors: Norman L. Call, Jose M. Chavez, Rodolfo Chavez
  • Patent number: 9530585
    Abstract: The invention relates to a switching device (10), in particular in a motor vehicle, having an adjustable touch-sensitive switching element (12) which is switchable by a touch pressure exerted in a direction (s) of actuation. The switching element (12) is adapted to assume a first initial position, in which the switching element (12) bears on an abutment (14) in the direction (s) of actuation. The switching element (12) is adapted to assume a second initial position, in which, compared with the first initial position, the switching element (12) is adjusted by a predeterminable travel (x1) contrary to the direction (s) of actuation.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: December 27, 2016
    Assignee: TRW Automotive Electronics & Components GmbH
    Inventor: Joachim Korherr
  • Patent number: 9406469
    Abstract: An electromagnetic relay has a movable touch piece, a movable contact provided on the movable touch piece, and a fixed contact opposed to the movable contact. The movable touch piece is rotated by a movable iron piece that rotates based on magnetization and demagnetization of an electromagnet block, to make the movable contact come into contact with and separate from the fixed contact. Operation characteristics are made adjustable by a press-fitting amount at the time of press-fitting a fixed contact terminal provided with the fixed contact into a spool of the electromagnet block along a moving direction of the movable contact.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: August 2, 2016
    Assignee: OMRON Corporation
    Inventors: Yoshiaki Mimura, Hironori Sanada, Hideto Yamauchi
  • Patent number: 9390849
    Abstract: In the disclosed magnetic element (1) for wireless power transmission, in a cross section that matches the direction of magnetic coupling, a conductor section (2) and a magnetic material section (3) that abuts the conductor section (2) are disposed in parallel in a direction perpendicular to the direction of magnetic coupling, and one of either the conductor section (2) or the magnetic material section (3) has a protruding region (61) that protrudes in the direction of magnetic coupling more than the other does.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: July 12, 2016
    Inventors: Takezo Hatanaka, Mitsuru Honjo, Takeshi Tanaka, Masami Inoue
  • Patent number: 9263355
    Abstract: An electronic signal transmitting device is disposed in a housing of an integrated circuit. The integrated circuit includes at least one first signal end and at least one second signal end. The electronic signal transmitting device includes at least one electromagnetic transmitting unit, coupled between the first signal end and the second signal end for transmitting an electronic signal between the first signal end and the second signal end; and an electromagnetic insulating layer covering the electromagnetic transmitting unit for protecting the integrated circuit from electromagnetic interference.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: February 16, 2016
    Assignee: Wistron Corporation
    Inventors: Lung-Fai Tuen, Chi-Fang Weng, Wei-Cheng Lin, Hong-Kuei Lee, Wei-Shuen Chang, Wei-Shen Chu
  • Patent number: 9147514
    Abstract: A small wire-wound inductor has a drum-shaped core member constituted by an assembly of soft magnetic alloy grains, a coil conductive wire wound around the core member, a pair of terminal electrodes connected to the terminals of the coil conductive wire, and an outer sheath member covering the wound coil conductive wire and constituted by a magnetic powder-containing resin having a specified magnetic permeation ratio, wherein the soft magnetic alloy grains are fixedly bonded together via oxidized layers, and the core member contains 2 to 15 percent by weight of chromium (Cr).
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: September 29, 2015
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yoshinari Nakada, Koichiro Wada, Yuichi Kasuya, Masanori Takahashi, Masashi Kuwahara, Tetsuo Kumahora
  • Patent number: 9123461
    Abstract: A tape wound inductor core device, inductors including same and methods of manufacture. Tape wound material may be cut and/or shaped into “pucks” that have an exterior surface made up of or defined substantially by the edge surfaces of the layers of the constituent conductive material, with all or most of the broad surfaces disposed inwardly, thereby reducing eddy currents and associated losses. Various puck configurations, inductor arrangements and fabrication techniques are disclosed.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: September 1, 2015
    Assignee: Peregrine Power, LLC
    Inventor: Bruce W. Carsten
  • Publication number: 20150143690
    Abstract: In accordance with an embodiment of the application a method of forming an integrated magnetic device is described. A prepreg or core is mounted on a carrier. A winding layer is plated and patterned on the prepreg or core. Vias are plated. The silicon is placed on a die attach pad, ensuring sufficient clearance of die to vias and d/a char. The assembly is laminated and grinded to expose the vias. A 2nd layer of vias is provided by sputtering or plating followed by laminating assembly; and grinding assembly to expose vias. The windings are plated and patterned. A solder mask (SMSK) is applied and assembly finished.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventor: Anindya Poddar
  • Publication number: 20150145634
    Abstract: A wireless charging coil is provided herein. The wireless charging coil comprising a first stamped coil having a first spiral trace, the first spiral trace defining a first space between windings, and a second stamped coil having a second spiral trace, the second spiral trace defining a second space between windings, wherein the first stamped coil and second stamped coil are planar to and interconnected with one another, such that the first stamped coil is positioned within the second space of the second stamped coil, and the second stamped coil is positioned within the first space of the first stamped coil.
    Type: Application
    Filed: August 27, 2014
    Publication date: May 28, 2015
    Applicant: A.K. Stamping Company, Inc.
    Inventors: Arthur Kurz, Bernard Duetsch, Joshua Kurz
  • Publication number: 20150145344
    Abstract: A high voltage transformer arrangement for supplying power to a high voltage tank assembly is disclosed. The high voltage transformer arrangement includes a first core arranged in the high voltage tank assembly and a secondary winding configured on the first core, a second core positioned outside of the high voltage tank assembly and at a predefined distance from the first core, and a primary winding configured on the second core. The second core and the primary winding transfers current received from an external power source to the first core and secondary winding for supplying power to the high voltage tank assembly.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Niranjan KUMAR, Denis Perrillat-Amede, Venugopal Vadivel
  • Publication number: 20150137920
    Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 21, 2015
    Inventors: Gerald Stelzer, Rainer Meinke, Mark Senti
  • Patent number: 9035736
    Abstract: A magnetic device is provided. The magnetic device includes a magnetic core and a conductive winding inductively coupled to the magnetic core. The conductive winding includes a first terminal segment, a second terminal segment, and an inductive segment electrically coupled in series therebetween. The first terminal segment includes a current sensing element.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: May 19, 2015
    Assignee: General Electric Company
    Inventors: Joao Luiz Andres, John F. Steel, Robert James Catalano, Loc Ngo
  • Publication number: 20150130577
    Abstract: A low cost, high performance electronic device for use in electronic circuits and methods. In one exemplary embodiment, the device includes an interleaved flat coil and coil winding arrangement that ensures low leakage inductance while using a combination of flat coil windings and self-bonded Litz coil windings. The flat coil windings further include features that are configured to mate with the header assembly terminal pins which substantially simplify the manufacturing process. Methods for using and manufacturing the aforementioned inductive devices are also disclosed.
    Type: Application
    Filed: September 3, 2014
    Publication date: May 14, 2015
    Inventors: Ma Hongzhong, Li Huatu
  • Publication number: 20150130979
    Abstract: An apparatus including a first layer having a first coil; a second layer having a second coil, where the first and second coils are stacked relative to each other and configured to be located at an aperture of a housing member including electrically conductive material; and a third layer located under the second layer. The third layer includes a ferrite member located under the second coil such that the second coil is between the first coil and the ferrite member. The first coil or the second coil has a substantially “8” shape.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 14, 2015
    Inventors: Wei Huang, Niels Bonne Larsen, Marie Van Deusen, Jorge Zabaco
  • Patent number: 9030198
    Abstract: A magnetometer is described, having a substrate and a magnetic core, the substrate having an excitation coil for generating a magnetic flux in the magnetic core; and the excitation coil having a coil cross section, which is aligned generally perpendicular to a main plane of extension of the substrate. The magnetic core is situated outside the coil cross section.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: May 12, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Frank Schatz, Tino Fuchs, Ando Feyh
  • Patent number: 9027229
    Abstract: Coil assembly (1) comprising a planar coil (2) comprising a plurality of turns (15) arranged in a trench (10) in a first magnetic core plate (3) and a second magnetic core plate (8), where the first magnetic core plate (3) and second magnetic core plate (8) are in direct contact with each other or separated by an electrically insulating insulator layer (5) with a thickness (t) equal to or less than 50 ?m and least one tap (6) extends from the coil (2) in a respective via hole (11) through the first magnetic core plate (3) to a respective contact pad (7), wherein the coil (2) and the tap (6) are integrally formed.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: May 12, 2015
    Assignee: ÅAC Microtec AB
    Inventor: Robert Thorslund
  • Patent number: 9027232
    Abstract: A cylindrical magnet assembly has at least one coil mounted on a former, assembled to a bore tube by a number of inserts within holes formed in a material of the former. Each insert can bear on a dished radially outer extremity of a radially-outwardly directed protrusion or each insert can bear on a radially outer concave surface of a radially-inwardly directed protrusion.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: May 12, 2015
    Assignee: Siemens Plc.
    Inventor: Russell Peter Gore
  • Patent number: 9027228
    Abstract: Methods for the manufacture of an electromagnetic coil assembly are provided. In one embodiment, the method includes joining a first end portion of a braided lead wire to a coiled magnet wire. A dielectric-containing material is applied in a wet-state over the coiled magnet wire and over the first end portion of the braided lead wire. The dielectric-containing material is cured to produce an electrically-insulative body in which the coiled magnet wire and the first end portion of the braided lead wire are at least partially embedded. Prior to application of the dielectric-containing material, the braided lead wire is at least partially impregnated with a masking material deterring wicking of the dielectric-containing material into an intermediate portion of the braided lead wire. In certain cases, the masking material may be removed from the braided lead wire after curing, and the electrically-insulative body may be sealed within a canister.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: May 12, 2015
    Assignee: Honeywell International Inc.
    Inventors: James Piascik, Eric Passman, Robert Franconi
  • Publication number: 20150115723
    Abstract: A device may include a multiple inductive coils arranged concentrically for operating according multiple modes of wireless power transfer. The device may include multiple layers of magnetic shields to protect device components from the effects of the magnetic field used for power transfer. Construction and material of multiple layers of shields may be based on addressing individually the different parameters of the multiple modes of operation and based on the combined effect of the layers in each mode of operation. In some examples, the device may include first and second ferrite shields each having different magnetic properties.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: Nokia Corporation
    Inventors: Sakari Johannes LEVO, Jari Juhani MUURINEN
  • Patent number: 9015925
    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: January 11, 2013
    Date of Patent: April 28, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Kenneth Damgaard Hoell, Jakob Mikkelsen, John Krath Pedersen, Martin Bach Soerensen
  • Patent number: 9009951
    Abstract: An electromagnetic component includes a coil portion with a multi-layer stack structure, a molded body encapsulating the coil portion, and two electrodes respectively coupled to two terminals of the coil portion. The coil portion is fabricated using plating, laminating and/or pressing manufacturing techniques.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: April 21, 2015
    Assignee: Cyntec Co., Ltd.
    Inventors: Wei-Chien Chang, Chia-Chi Wu, Lang-Yi Chiang, Tsung-Chan Wu, Jih-Hsu Yeh
  • Patent number: 9009949
    Abstract: A method of fabricating an electric machine stator includes inserting one or more electrical coils into a form and partially curing the one or more electrical coils. The method also includes populating the electric machine stator with the one or more electrical coils and curing the electric machine stator with one or more electrical coils.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: April 21, 2015
    Assignee: DRS Power Technology, Inc.
    Inventors: Edgar S. Thaxton, Gregory Cervenka, Raymond Jones, Eric Tripodi
  • Publication number: 20150101854
    Abstract: An inductive device may include a pair of half-shell magnetically-conductive housings joined together and defining an enclosed cavity between them. The inductive device may also include primary and secondary windings provided spatially within the cavity providing magnetic coupling between them. The windings may be electrically insulated from each other and terminals of the primary and secondary windings may traverse to an exterior of the inductive device.
    Type: Application
    Filed: March 12, 2014
    Publication date: April 16, 2015
    Applicant: ANALOG DEVICES, INC.
    Inventors: Check F. Lee, James Doscher
  • Patent number: 9003641
    Abstract: A nickel strip is made from a starting material of solid cathode sheets having a minimum nickel content of 99.94% by weight and a maximum trace element content, in ppm by weight, of <35 carbon, <5 sulphur, <14 manganese, <11 magnesium, <11 aluminum, <25 titanium, and <15 silicon. The sheets are hot-rolled individually in a single layer/ply. The sheets are then joined to form the strip.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 14, 2015
    Inventor: Theodor Stuth
  • Publication number: 20150096168
    Abstract: A method of producing a transformer module by placing at least one transformer which includes a core, a primary winding, and a secondary winding at a bottom surface of a case at which a plurality of external terminals are provided. The method comprising placing two support columns on the bottom surface, placing the bottom surfaces of cores near the lead-out points of the leads of the windings at the two sides of the cores on core support parts of the two support columns to support them, stringing leads at the two sides of the cores to the external terminals and electrically joining them, removing the two support columns so that the bottom surfaces of the cores are placed on the bottom surface of the case, then fastening the cores to the bottom surface of the case to produce a transformer module where the leads from the cores are given excess length.
    Type: Application
    Filed: September 15, 2014
    Publication date: April 9, 2015
    Inventors: Masayuki ITOH, Hiroshi KUROSAWA
  • Publication number: 20150097644
    Abstract: A magnetic device includes an electrically insulating body and a conductor coil. The insulating body defines an internal cavity for a magnetic device core and a coolant channel routed about the internal cavity. The conductor coil extends through the insulating body and winds about the internal cavity. The electrically insulating body electrically insulates the internal cavity and coolant channel from the conductor coil.
    Type: Application
    Filed: February 19, 2014
    Publication date: April 9, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Charles Shepard, Eric Karlen
  • Publication number: 20150097645
    Abstract: A transformer apparatus includes: a case with a component mounting surface; an external-terminal provided on a wall adjacent to the component mounting surface of the case; a transformer provided on the component mounting surface and including a magnetic core and a winding; and a support provided in a position between the external-terminal and the core on the component mounting surface, and including a first-slit in a top surface of the support, the first-slit holding a first-conductor of the winding drawn from the core and a second-conductor drawn from the external-terminal, wherein the first-conductor is held at one end of the first-slit by a conductive member, the second-conductor is held at the other end of the first-slit by the conductive member, the first-conductor and the second-conductor are electrically connected through the conductive member, and the first-conductor and the second-conductor have surplus lengths.
    Type: Application
    Filed: August 21, 2014
    Publication date: April 9, 2015
    Inventors: Masayuki ITOH, Hiroshi KUROSAWA
  • Patent number: 8997333
    Abstract: A method of manufacturing an inductor includes a lamination step, a division step, a firing step, and a plating step. In the lamination step, a laminate including an insulator, a coil body, and external electrodes is formed. That is, in the lamination step, insulating layers having wide filling conductors, insulating layers having narrow filling conductors, and conductor patterns having external electrode patterns are laminated. As a result, the conductor patterns form the coil body, and the wide filling conductors, the narrow filling conductors, and the external electrode patterns form the external electrodes. The narrow filling conductors have a width that is less than the widths of the wide filling conductors and the external electrode patterns, and recesses and projections are provided in the external electrodes.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: April 7, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Kazuhiko Yamano
  • Publication number: 20150089795
    Abstract: A method to form a choke is disclosed, wherein the method comprises: encapsulating a hollow coil by a molding body; forming a first core, wherein the first core comprises a pillar; and disposing at least one first portion of the pillar inside the encapsulated hollow coil. The method avoids the overflow or vertical flow issue during a molding process for encapsulating a coil that has been wound on a core already.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 2, 2015
    Inventors: Lan-Chin Hsieh, Roger Hsieh, Yu-Ching Kuo, Chun-Tiao Liu
  • Patent number: 8978239
    Abstract: A method for preparing a field coil winding assembly including cleaning a plurality of copper coils followed by developing, after the cleaning, a copper oxide layer on each of the copper coils by oxidizing each of the copper coils in a solution. After the developing, each of the copper coils is rinsed followed by drying. After the drying, a turn insulation system is applied to each of the copper coils. The turn insulation system includes a turn insulation and an adhesive. The turn insulation includes at least one of a glass fiber re-enforced polyamideimide, a glass fiber re-enforced polyester, or a glass fiber re-enforced high temperature novolac epoxy. After the applying, each of the copper coils with the turn insulation system is cured. The plurality of copper coils with the turn insulation system are stacked in each of a plurality of rotor slots in a rotor.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: March 17, 2015
    Assignee: General Electric Company
    Inventors: James Jun Xu, Stephen Frank Francese, Alan Michael Iversen, Leonard Paul Squillacioti
  • Publication number: 20150070120
    Abstract: A coil component has a wound coil, a coil magnetic body, and an exterior body. The coil magnetic body has a magnetic core inside winding of the wound coil. The exterior body covers a surface of the coil magnetic body. This coil component has a mount surface, and a thermal conductivity in a direction parallel to a surface of the exterior body is greater than a thermal conductivity in a direction perpendicular to the surface of the exterior body.
    Type: Application
    Filed: September 1, 2014
    Publication date: March 12, 2015
  • Patent number: 8973252
    Abstract: Several embodiments of a circuit device using principles of planar Litz wire construction are disclosed using flexible printed circuit boards on which a given set of conductors is located on one surface only. The FPCBs are folded at strategic locations to effectively cause conductors in adjacent parallel planes to effectively cross one another to realize the advantages of braided Litz wire conductors, but without the use of vias or circuit interconnections between opposite sides of any given FPCB or between different sections of a continuous FPCB wherein each section defines its own coil or coil set.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 10, 2015
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Tsuyoshi Nomura, Ken Toshiyuki, Yuanbo Guo
  • Publication number: 20150060226
    Abstract: Provided are an opposed iron core transmitting rotation motion, a manufacturing method thereof, and an electromagnetic fan clutch formed by the opposed iron core. The opposed iron core includes iron core grooves (12; 13) axially arranged in a back-to-back manner on an electromagnetic iron core body (11). The manufacturing method of the opposed iron core includes: directly drawing the iron core body (11) to form the iron core grooves arranged in the back-to-back manner, or directly spinning the iron core body (11) to form the iron core grooves arranged in the back-to-back manner. The electromagnetic fan clutch formed by the opposed iron core has a first actuation gap (841) and a second actuation gap (842) respectively on two sides of the electromagnetic iron core body (11) of an opposed iron core apparatus.
    Type: Application
    Filed: March 30, 2012
    Publication date: March 5, 2015
    Inventor: Zhaoyu Wang
  • Patent number: 8970339
    Abstract: A magnetic core is provided. The magnetic core includes a magnetic base and a magnetic plate. The magnetic base includes a first U-core, a second U-core, and a spacing member. The first U-core has a relatively high magnetic permeability, and includes a first surface having a first winding channel defined therein. The second U-core has a relatively high magnetic permeability, and includes a second surface having a second winding channel defined therein. The first and second surfaces are substantially coplanar with one another. The spacing member is connected to the first and second U-cores such that a gap having a relatively low magnetic permeability is formed between the first and second U-cores. The magnetic plate is coupled to the magnetic base such that the magnetic plate substantially covers the first and second surfaces.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 3, 2015
    Assignee: General Electric Company
    Inventor: Robert James Catalano
  • Patent number: 8966742
    Abstract: A method of producing a stator winding for a stator of an electrical machine includes positioning a phase winding segment of the stator winding in a same plane in a serpentine manner in a first direction (X) and in a shape of a wave in a second direction (Y) transverse to the first direction. The method includes bending regions (A, B, C) of the phase winding segment toward one another along a folding line to form a lap winding including positioning regions (C) parallel to each other connected by regions (B) where the regions (B) cross the at least one folding line (108). The phase winding is formed with a continuous wire.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: March 3, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Thomas Berger
  • Patent number: 8970338
    Abstract: A distribution transformer having a slot-and-tab core frame assembly. The core frame (17) encloses a transformer core (11) having at least one phase and provides compression on the core yokes and end members of the transformer to bind the assembly together. First and second clamps (10, 24) of the core frame contain receiving slots (34) for the tabbed (18, 28), longitudinal side supports (20), creating an interlock when connected. For larger transformers, the tabbed side supports may be alternatively comprised of a subassembly of end plates, cams, and tabbed locking plates, encompassing a sturdy locking mechanism.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: March 3, 2015
    Assignee: ABB Technology AG
    Inventor: Charles W. Johnson
  • Patent number: 8959752
    Abstract: A transformer core manufacturing apparatus for manufacturing an annular transformer core having thin plates formed of magnetic materials laminated includes an uncoiler unit which allows a plurality of uncoilers each having a thin plate magnetic material coiled hoop-like to uncoil the magnetic material, a carrier unit for guiding a plurality of the magnetic materials uncoiled from the plurality of the uncoilers as a single group of magnetic body, a first alignment unit for aligning the carried group of the single magnetic body in a width direction, a cut-off unit for cutting the magnetic body aligned by the first alignment unit in a predetermined dimension, a laminating unit for laminating a plurality of the groups of the magnetic body cut by the cut-off unit, a second alignment unit for aligning the magnetic body laminated on the laminating unit, and a control unit for controlling operations of the above cited units.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: February 24, 2015
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shunsuke Ikeda, Junichi Ishizuki, Takashi Kurata, Eisuke Maruyama
  • Publication number: 20150048909
    Abstract: A polarized relay comprising an electromagnet, a two-pole or three-pole permanent magnet, an armature, and switches, which are mounted in and on a shelf-like support component. The support component accommodates magnetic flux pieces and the permanent magnet in an upper cavity, and the permanent magnet is magnetized while the electromagnet is still outside the support component. Subsequently, the electromagnet is inserted into lower cavity of the support component and the rest of the components of the relay are mounted.
    Type: Application
    Filed: March 27, 2013
    Publication date: February 19, 2015
    Inventors: Jens Heinrich, Christian Mueller, Ralf Hoffmann
  • Publication number: 20150040381
    Abstract: A method for making a magnetic assembly comprises the following steps: twisting a first to eighth magnetic wires to form a bundle of wires having a first end and an opposite second end; providing a magnetic core; winding the bundle of magnetic wires around the magnetic core; sorting the first end and the second end of the bundle of wires to form individual first ends and individual second ends of the first to eighth wires; picking out the second ends of the first wire and the second wire, and the first ends of the third wire and the fourth wire to form a centre tap of a primary coil of a transformer; and picking out the second ends of the fifth wire and the sixth wire, and the first ends of the seventh wire and the eighth wire to form a centre tap of a secondary coil of the transformer.
    Type: Application
    Filed: October 26, 2014
    Publication date: February 12, 2015
    Inventors: YONG-CHUN XU, JIE ZHANG
  • Patent number: 8943676
    Abstract: A method of manufacturing a solenoidal magnet structure, comprising the steps of providing a collapsible mold in which to wind coils; winding wire into defined positions (88) in the mold to form coils (34); placing a preformed tubular mechanical support structure (102, 120) over the coils (34) so wound; impregnating the coils and bonding them to the mechanical support structure by applying a thermosetting resin and allowing the thermosetting resin to harden; and collapsing the mold and removing the resultant solenoidal magnet structure comprising the resin impregnated coils and the mechanical support structure from the mold as a single solid piece.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: February 3, 2015
    Assignee: Siemens PLC.
    Inventors: Graham Hutton, Jonathan Noys, Adrian Mark Thomas