Potted Type Patents (Class 336/96)
  • Patent number: 10586643
    Abstract: The present invention facilitates positioning of contact surfaces of a resin case, core gap management, and assembling processing. A resin case 1 can house at least one magnetic core selected from a U-shaped magnetic core, a UU-shaped magnetic core, a UR-shaped magnetic core, and an I-shaped magnetic core. The resin case 1 is used for an inductance element in which a coil is arranged around the magnetic core so as to house the magnetic core. The resin case is an assembly of a plurality of divided members with the same shape. A recess and a projection A1, A2 mutually fitted complementary to each other are formed on end surfaces of the divided members contacted with each other.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: March 10, 2020
    Assignee: NTN CORPORATION
    Inventors: Kayo Sakai, Eiichirou Shimazu, Takayuki Oda
  • Patent number: 10173531
    Abstract: Provided herein is a carrying device of a receiving device of a system for inductive power transfer to a vehicle, including: a carrying plate, a first edge element arranged at a first lateral edge of the carrying plate, and at least another edge element arranged at a second lateral edge of the carrying plate. The edge elements are slanted with respect to the carrying plate. The carrying plate and the edge elements are made of non-magnetic material. Also provided herein is a method of manufacturing the carrying device of the receiving device.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: January 8, 2019
    Assignee: Bombardier Primove GmbH
    Inventors: Federico Garcia, Anton Geiger, Tobias Leininger, Nestor Martinez Pelaez
  • Patent number: 9478347
    Abstract: A distribution transformer having a coil assembly mounted to a ferromagnetic core. The coil assembly includes a resin-encapsulated low voltage coil mounted to the core, a resin-encapsulated first high voltage coil disposed around the low voltage coil, and a resin encapsulated second high voltage coil disposed around the first high voltage coil. The first high voltage coil is separated from the low voltage coil by an annular first space, and the second high voltage coil is separated from the first high voltage coil by an annular second space. The low voltage coil and the first and second high voltage coils are arranged concentrically. The low voltage coil and the first and second high voltage coils have different axial lengths.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: October 25, 2016
    Assignee: ABB TECHNOLOGY AG
    Inventors: Charlie Sarver, William E. Pauley, Jr.
  • Patent number: 9287032
    Abstract: A one-piece frame is provided for a core/coil assembly of a transformer. The frame includes a first wall, a second wall integral with the first wall, a third wall integral with the second wall and in opposing relation to the first wall, and a fourth wall integral with the third wall and in opposing relation to the second wall. Mounting structure secures the fourth wall to the first wall. The walls define a generally rectangular enclosure having open sides communicating with an interior space. The interior space is constructed and arranged to house at least a portion of a core/coil assembly of a transformer.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: March 15, 2016
    Assignee: ABB Technology AG
    Inventors: Bryan Zweifel, Dana L. Basel, Santiago I. Serrano
  • Patent number: 9128422
    Abstract: An aspect of the present invention provides an image forming apparatus including: a photosensitive element where a latent image is formed and developed into a toner image; an image carrier; an intermediate transfer driving roller that drives the image carrier; a primary transfer roller for transferring the toner image from the photosensitive element to the image carrier; a secondary transfer roller for secondary transfer of the toner image from the image carrier to a medium; a bias applying unit that applies, as a secondary transfer bias, a first bias and a second bias to the intermediate transfer driving roller and the secondary transfer roller, respectively; and a fixing unit that fixes the toner image onto the medium. The first bias is lower than a minimum voltage at which discharge to the primary transfer roller can occur. The second bias depends on the first bias and is opposite in polarity therefrom.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 8, 2015
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Akira Yashiro, Takayuki Kawamoto, Kunihiro Komai
  • 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
  • Patent number: 9007158
    Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20. An interval between the inner end face 24f of the exposed core portion 24 and the end face of the coil 10 is 0.5 mm to 4.0 mm, whereby the resin can easily be packed between the coil 10 and the core 20.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: April 14, 2015
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kouhei Yoshikawa, Shinichiro Yamamoto
  • Patent number: 8991371
    Abstract: An ignition coil for an internal combustion engine includes a magnetically-permeable core extending along a core longitudinal axis, the core having a pair of end surfaces on axially-opposite ends thereof. The ignition coil also includes a primary winding disposed outward of the core, a secondary winding disposed outward of the primary winding, and a structure comprising magnetically-permeable steel laminations having a base and a pair of legs, the structure defining a magnetic return path. The core is disposed between the pair of legs such that the core longitudinal axis extends through the legs and the end surfaces face toward the legs and at least one of the end surfaces of the core is spaced apart from a respective one of the legs to define an air gap. The structure is over-molded with an over-molding material such that the over-molding material fills at least a portion of the air gap.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: March 31, 2015
    Assignee: Delphi Technologies, Inc.
    Inventors: Albert A. Skinner, Harry O. Levers, Andre V. Scaff
  • Publication number: 20150069877
    Abstract: Disclosed is a resin composition for electric insulation which contains an epoxy resin; a hardening agent; and fine particles, in which the fine particles form a plurality of threadlike agglomerates and the agglomerates have a dendritic structure when the epoxy resin, the hardening agent, and the fine particles are mixed and hardened, a base material of the fine particle is formed of silicon dioxide, aluminum oxide, titanium oxide, or boron nitride, and hydrophilic groups and hydrophobic groups are present together on a surface of the base material. Thus improvement of the electric characteristics and the mechanical characteristics of the insulation material and suppression of viscosity of the resin composition are made compatible.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Inventors: Takuya OTOWA, Hiroshi MORITA, Atsushi OHTAKE, Kinya KOBAYASHI, Keiji SUZUKI
  • Patent number: 8947187
    Abstract: The invention comprises an electrical apparatus and method of manufacture. The apparatus includes a substantially annular inductor comprising an inductor core composed of at least a distributed gap material. The distributed gap material includes particles of alternating layers of magnetic and non-magnetic materials separated by a gap material. The particles comprise an average layer thickness of less than about one hundred micrometers, where a majority of said layered particles comprise an average cross sectional size of less than about one millimeter. The inductor is cooled using at least one of: a thermally conductive potting material, a liquid coolant in direct contact with the inductor, a cooling line through the potting material or liquid coolant, and a chill coil in a container about the potting material and/or the liquid coolant.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: February 3, 2015
    Inventor: Grant A. MacLennan
  • Patent number: 8928447
    Abstract: A reactor 1? includes one coil 2, a magnetic core 3 to which the coil 2 is arranged, and a case 4 containing an assembly 10 of the coil 2 and the magnetic core 3. The magnetic core 3 includes an inner core portion 31 inserted into the coil 2, and a coupling core portion 32 disposed around the coil 2. The coupling core portion 32 is made of a mixture of magnetic powder and resin. The coil 2 is covered with the coupling core portion 32 and is enclosed within the case 4 in a sealed state. The reactor 1? includes, in an outermost surface region exposed at an opening of the case 4, a magnetic shield layer 5 made of non-magnetic powder, having smaller specific gravity than the magnetic powder and having electrical conductivity, and the resin. A small reactor capable of reducing magnetic flux leaked to the outside is thereby provided.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Kazuhiro Inaba
  • Patent number: 8922311
    Abstract: An electrical inductor assembly includes an inductor core having a relatively circular geometry. Also included is a wire guide surrounding and retaining the inductor core, the wire guide having a plurality of slots for retaining and guiding a plurality of wires. Further included is an outer housing surrounding and retaining the wire guide and a substance disposed within at least one of the plurality of slots of the wire guide.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: December 30, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, John Horowy
  • Patent number: 8872610
    Abstract: Provided are a coil component capable of contributing to improving productivity of a reactor, and a reactor exhibiting good productivity. A reactor 1A includes one coil 2 formed by spirally winding a wire 2w, and a magnetic core 3, which is disposed inside and outside the coil 2 and which forms a closed magnetic circuit. The magnetic core 3 includes an inner core portion 31 disposed inside the coil 2, and an outer core portion 32 disposed around the coil 2. The coil 2 and the inner core portion 31 constitute a coil component 2A held as an integral unit by a resin molded portion 20. A shape of the coil 2 is maintained by the resin molded portion 20. Since the coil component 2A includes a portion of the magnetic core 3, the number of components can be reduced, and the coil 2 and the inner core portion 31 can be easily placed into a case 4A when they are housed therein. The coil 2 is easier to handle because the coil shape is constantly maintained without expanding or contracting.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: October 28, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Kazuhiro Inaba
  • Patent number: 8860541
    Abstract: Embodiments of an electromagnetic coil assembly are provided, as are methods for the manufacture of an electromagnetic coil assembly. In one embodiment, the electromagnetic coil assembly includes a body of dielectric material, a coiled magnet wire at least partially embedded within the body of dielectric material, a braided lead wire extending into the body of dielectric material to the coiled magnet wire, and a joint buried within the body of dielectric material and mechanically and electrically coupling the braided lead wire and the coiled magnet wire.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: October 14, 2014
    Assignee: Honeywell International Inc.
    Inventors: James Piascik, Eric Passman, Robert Franconi
  • Patent number: 8854167
    Abstract: A magnetic assembly is formed by a Printed Circuit Board (PCB) and a cover. A plurality of magnetic elements is electrically disposed on the PCB, and the magnetic elements are connected to one another through an electric circuit on the PCB. An accommodation space is formed on the cover for receiving the magnetic elements. During the manufacturing of the magnetic assembly, a cover with an appropriate space is selected according to the size, quantity, and specification type of the magnetic elements. After the two components are assembled, adhesive is injected into the cover, so that the cover and the PCB are fixedly disposed, and the elements in the accommodation space are protected. Therefore, in a process of manufacturing the magnetic assembly, covers with different accommodation spaces are selected for collocation according to requirements of the assembled electrical elements.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: October 7, 2014
    Assignee: Mag. Layers Scientific-Technics Co., Ltd.
    Inventors: Ching Tzung Lin, Wen Cheng Yu, Ching Yuan Cheng
  • Patent number: 8847716
    Abstract: An electromagnetic solenoid is provided with a bobbin having a generally cylindrical body and a pair of radially outwardly extending end flanges each disposed at opposite ends of the generally cylindrical body. The pair of end flanges each have an inner face facing one another and an outer face facing away from one another. The inner and outer faces of the pair of end flanges have a plurality of grooves formed in a surface thereof. The grooves provide for enhanced retention of an over-mold that seals a coil within the bobbin assembly.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: September 30, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Carl E. Fonville
  • Patent number: 8841982
    Abstract: High- or medium-voltage equipment comprising an induction-activated portion, a tank surrounding the active portion and filled with a dielectric fluid, such as oil, and passive acoustic reduction means for reducing acoustic waves coming from the active portion and propagating in the dielectric fluid. According to the invention, the passive means create an interference field that divides the propagated waves into two groups of waves of opposite phase that interfere with each other in a zone that is at a distance from the walls of the tank so as to at least limit the amplitude of the waves before they make contact with said walls. The equipment provides an effective solution for significantly reducing the noise that is propagated by the dielectric fluid medium.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: September 23, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Francois Devaux, Pascal Vouagner
  • Patent number: 8816809
    Abstract: A reactor is disclosed. The reactor is comprised of a housing, a solenoid coil, a center columnar member, and a core. The center columnar member provides first surfaces contacting with sandwich portions of the housing, and the core is comprised of resin including magnetic powder. The coil and the center columnar member are fixed in the core. A surface roughness (Rz2) of a second surface which contacts to the core is larger than a surface roughness (Rz1) of the first surfaces. The center columnar member further provides a basis surface of which roughness (Rz3) is smaller than the Rz2 and larger than the Rz1.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 26, 2014
    Assignees: Denso Corporation, Nec Tokin Corporation
    Inventors: Kazuhiro Kosaka, Ryota Tanabe, Souichi Yoshinaga, Masahiko Yamashita, Seigo Satou, Mitsutoshi Kameda, Tsugio Takeda
  • Patent number: 8786392
    Abstract: A corona igniter 20 includes a coil 24 with a plurality of copper windings 26 extending longitudinally along a coil center axis ac. A magnetic core 30 is disposed along the coil center axis ac between the windings 26 and includes a plurality of discrete sections 32. The discrete sections 32 are spaced axially from one another by a core gap 34 filled with a non-magnetic gap filler 78. The magnetic core 30 has a core length lm and the coil 24 has a coil length lc less than the core length lm. A coil former 62 having a former thickness tf spaces the coil 24 from the magnetic core 30. A length difference ld between the core length lm and the coil length lc is preferably equal to or greater than the former thickness tf.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: July 22, 2014
    Assignee: Federal-Mogul Ignition Company
    Inventor: John Antony Burrows
  • Patent number: 8779880
    Abstract: A transformer includes an enclosed tank having an interior and an enclosed radiator spaced from the tank and in fluid communication with the interior. The radiator includes two panels joined to define a substantially enclosed space. The panels have opposing faces and bottom ends. The bottom ends of the panels are joined together by a first weld and portions of the opposing faces of the panels are joined together by a plurality of second welds. The first weld and the plurality of second welds are constructed and arranged such that when an over-pressure condition occurs in the tank and thus in the radiator, the second welds will break generally uniformly permitting the panels to balloon generally uniformly, directing a rupture of the radiator to occur at the first weld, without any rupture of the tank occurring.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: July 15, 2014
    Assignee: ABB Technology AG
    Inventors: Elizabeth D. Sullivan, David B. Elzey, Paul S. Lowry
  • Patent number: 8767372
    Abstract: The invention relates to an ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, comprising an insulator which carries a center electrode, a coil attached to the center electrode, the coil being wound onto a bobbin and enclosed by a tube housing. According to the invention, the coil tapers toward the insulator.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 1, 2014
    Assignee: BorgWarner BERU Systems GmbH
    Inventors: Timo Stifel, Thomas Giffels, Axel Mueller
  • Patent number: 8745850
    Abstract: An apparatus and method for manufacturing a superconducting low-pass filter for quantum computing devices. The apparatus includes a plurality of containers and input and output ports connected to opposite ends of the apparatus. A plurality of coils of superconducting wire are wound using a mandrel. An adhesive is applied to the coils for maintaining a wound state. Each of the coils are positioned in each of the containers and electrically connected to each other with at least one coil being connected to the input port and at least one coil being connected to the output port. The coils are released or expanded from their wound state using an adhesive solvent. The containers are then filled with a conductive polymer and the containers are closed with one or more covers.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 10, 2014
    Assignee: International Business Machines Corporation
    Inventors: Matthew J. Farinelli, George A. Keefe, Frank Milliken, Jr., James R. Rozen
  • Publication number: 20140125308
    Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20. An interval between the inner end face 24f of the exposed core portion 24 and the end face of the coil 10 is 0.5 mm to 4.0 mm, whereby the resin can easily be packed between the coil 10 and the core 20.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Kouhei Yoshikawa, Shinichiro Yamamoto
  • Patent number: 8680962
    Abstract: A vibration-suppressed transformer is fixed to a base plate and includes a magnetic lower core, two or more magnetic upper cores, primary and secondary coils. The lower core is on the base plate. The upper cores are arranged face to face over the lower core. The coils are arranged between the lower and upper cores. Each upper core contacts the lower core, on an outer side of the coils, with a first gap being provided between the upper and lower cores, on an inner side of the coils. The upper cores are extended towards each other from the outer to the inner side of the coils, with a second gap being provided therebetween. The second gap is provided therein with a non-magnetic pressing member to press the lower core against the base plate, on an inner side of the coils.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 25, 2014
    Assignees: Nippon Soken, Inc., Denso Corporation
    Inventors: Tomoyuki Goto, Masanori Yasuda, Hisanaga Matsuoka, Yuuki Takemoto
  • Patent number: 8680961
    Abstract: The disclosed reactor has a case and a cylindrical molded coil assembly which is disposed inside of the case and which is formed by covering a coil with a resin, wherein the coil assembly is sealed by an iron powder mixed resin to which iron powder has been admixed. The reactor has a pillar provided as a single body with the case, and one or multiple ring-shaped core members. The ring-shaped core members are disposed outside the outer surface of the pillar such that the pillar is inserted inside the inner surface of said ring-shaped core members, and the assembly coil is disposed outside the outer surface of the ring-shaped core members such that the ring-shaped core members are inserted inside the inner surface of said coil assembly. The ring-shaped core members are sealed by means of the aforementioned iron powder-mixed resin.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: March 25, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shuji Yokota, Masaki Sugiyama, Shinjiro Saigusa, Nobuki Shinohara
  • Patent number: 8674801
    Abstract: An element for forming an induction component contains a coil body with a core and two radially projecting flanges, which are formed on the respective axial ends of the core and of which the one flange is designed to be attached to a printed circuit board and is larger than the other flange. On its outer side, the coil body is surrounded by a shielding ring, which sits on the larger of the two flanges. To this end, the shielding ring has an inwardly directed step on the lower end corner, the one limb of which step forms an abutment surface to be placed on the inner side of the flange. The other limb forms an abutment surface to be placed against the outer edge of the flange. The step preferably runs over the entire circumference of the shielding ring. As a result, an air gap formed between the upper flange and the inner side of the shielding ring is fixed in terms of its dimensions and position.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: March 18, 2014
    Inventor: Alexander Gerfer
  • Patent number: 8664804
    Abstract: Systems and devices are described herein for reducing a phantom load. The system may include a device for connection to a power source and a transformer or machine, wherein the device is configured to disconnect the transformer or machine from the power source under a predetermined load condition. The device may include a contactor, a current detector, a timer, and a controller. Portions of the current detector, timer, or controller may be implemented in a microcontroller.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 4, 2014
    Assignee: International Electrical Savings & Development, LLC
    Inventors: Paul M. Cruz, Thomas J. McKenzie, Daniel B. Brunning
  • Patent number: 8659382
    Abstract: A non-encapsulated-winding stereo wound-core dry-type amorphous alloy transformer. The core of the transformer has a stereo structure. Three lower yokes are placed on a base of a lower clamp, and an upper clamp and the lower clamp are connected with each other by several press screws. Low-voltage windings include a foil-wound or wire-wound cylindrical structure, while its high-voltage windings are wound with oxygen-free copper wires wrapped in an insulate paper and processed through vacuum pressure impregnation. Upper and lower padding blocks support and compress the high-voltage and low-voltage windings, so that the product is formed in a rigid stereo frame structure.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: February 25, 2014
    Assignee: Guangdong Haihong Co., Ltd.
    Inventors: Kaixuan Xu, Xianqing Guo
  • Patent number: 8653924
    Abstract: The invention provides a reactor to be built in a power converter. In the reactor, an induction component composed of a coil being a winding of a conductor wire, a core in which interior a magnetic path is formed and an insulation bobbin positioning and engaging a wire wound part of the coil is housed in a case to be soaked with a mold resin. Inner bottom face of the case has a plurality of surfaces having not less than two different heights letting the outside bottom of the case a reference surface, and the lower end face of the core is in contact with any of the case inner bottom surfaces excluding the lowest inner bottom surface. As a result, the reactor is suitable for on-vehicle applications to achieve reduced article variation as well as a longer service life, a shorter operation time and decreased cost.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: February 18, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaru Kobayashi, Takao Mitsui, Matahiko Ikeda, Naoki Moritake, Hirotoshi Maekawa, Ryuichi Ishii, Kenji Matsuda, Toshinori Yamane
  • Patent number: 8624697
    Abstract: The main purpose of this invention is to improve high forming pressure of existing Fe—Si—Al insulating magnetic powder which is not suitable for forming, combine heterogeneous insulating magnetic powder, produce hollow cup-like cover and Fe—Si—Al rod core for full magnetic path component assembling, and change the shape structure of rod core and cover design, so there will be advantages including easy to winding, assemble and cooling.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: January 7, 2014
    Assignee: Curie Industrial Co., Ltd.
    Inventor: Sywe-Rung Shang
  • Publication number: 20130335181
    Abstract: Provided is a coil assembly having improved heat resistance for use in a control rod driver, in which the heat resistance of coils is improved to increase the lifespan thereof and the deterioration of the coils and the fall of a control rod are thus securely prevented from occurring due to continuous operations of the control rod driver during an automatic load follow operation, thereby improving the safety and economic feasibility of a nuclear power plant, and a method for manufacturing the same.
    Type: Application
    Filed: July 25, 2013
    Publication date: December 19, 2013
    Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.
    Inventors: Yang Jo Choi, Young Ho Jang, Jae Gon Lee
  • Publication number: 20130221292
    Abstract: A dielectric insulation medium including sulphur hexafluoride (SF6) and/or tetrafluoro methane (CF4), in a mixture with at least one further component being an at least partially fluorinated fluoroketone.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 29, 2013
    Inventors: Mathias Ingold, Thomas Alfred Paul, Javier Mantilla, Oliver Cossalter, Judith Kessler, Navid Mahdizadeh
  • Publication number: 20130222102
    Abstract: A method of production of an ignition coil which provided with a core so as to form a mold release film which enables reduction of the adhesion with an epoxy resin comprising using a metal to form a rod-shaped center core, dipping the formed center core in a liquid UV curing resin, raising the center core from the liquid and shaking off the excess UV curing resin, irradiating the center core with UV rays to cause the UV curing resin which is deposited on the center core to cure and form an insulating film, attaching a first spool to the outside of the insulating film and winding a secondary coil over it, attaching a second spool to the outside of the secondary coil and winding a primary coil over it, inserting these into a case, then injecting an insulating material into the case to thereby produce an ignition coil.
    Type: Application
    Filed: November 9, 2012
    Publication date: August 29, 2013
    Applicant: DENSO CORPORATION
    Inventor: DENSO CORPORATION
  • Publication number: 20130147589
    Abstract: A transformer (10) includes a ferromagnetic core (14); winding structure (12) mounted on the core; electrical terminals (40, 40?) connected to the winding structure; a fast transient mitigator circuit (52) including an impedance circuit serially connected between one of the terminals and the winding structure, and a capacitor connected from the one terminal to external ground. The mitigator circuit is constructed and arranged to reduce a frequency spectrum and magnitude of fast transients. An encasement (16), of an insulating resin, commonly encapsulates the core, the winding structure and at least the impedance circuit of the mitigator circuit.
    Type: Application
    Filed: December 10, 2012
    Publication date: June 13, 2013
    Applicant: ABB TECHNOLOGY AG
    Inventor: ABB TECHNOLOGY AG
  • Publication number: 20130147670
    Abstract: An RFID antenna is arranged in the vicinity of a metal portion of and on an outer surface side of a casing of a communication terminal device. The RFID antenna includes a magnetic core, and a coil conductor that is wound around the magnetic core. The coil conductor includes a first conductor portion positioned on a first main surface side of the magnetic core and a second conductor portion positioned on the second main surface side of the magnetic core and arranged at a different position than the first conductor portion when viewed in plan from the direction of the first and second main surfaces, and the coil conductor is arranged such that the first main surface side of the magnetic core is on the metal portion side and such that the first conductor portion of the coil conductor faces a leading end portion of the casing.
    Type: Application
    Filed: February 6, 2013
    Publication date: June 13, 2013
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Murata Manufacturing Co., Ltd.
  • Publication number: 20130106549
    Abstract: The present invention provides a high-voltage coil superior in insulating properties and rigidity at high temperatures, which comprises a bobbin, a conducting wire wound around the bobbin, and an encapsulant encapsulating the conducting wire, wherein the encapsulant comprises a liquid crystalline polyester having a repeating unit represented by defined formula (1), —O—Ar1—CO—, a repeating unit represented by defined formula (2), —CO—Ar2—CO—, and a repeating unit represented by defined formula (3), —X—Ar3—Y—, as a forming material.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 2, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Sumitomo Chemical Company, Limited
  • Patent number: 8416049
    Abstract: A laminated ceramic component includes a ferrite magnetic layer and a glass ceramic layer made chiefly of borosilicate glass. The glass ceramic layer is laminated with the ferrite magnetic layer, and has an Ag inner conductor embedded inside. A microscopic region where aluminum and silver coexist is dispersed in the glass ceramic layer.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: April 9, 2013
    Assignee: Panasonic Corporation
    Inventors: Tsutomu Inuduka, Hironori Motomitsu
  • Patent number: 8416044
    Abstract: A reactor is composed of a coil and a core placed in the inside area and outer peripheral area of the coil in a container. The core is composed of magnetic powder, non-magnetic powder, and resin. The non-magnetic powder is composed of main component powder and low elastic modulus powder. The main component powder as a main component of the non-magnetic powder is made of one or more kinds of powder of a heat conductivity which is larger than that of the resin. The low elastic modulus powder is made of one or more kinds of powder of an elastic modulus which is smaller than that of the powder forming the main component powder.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: April 9, 2013
    Assignees: Denso Corporation, NEC Tokin Corporation
    Inventors: Kenji Saka, Takashi Yanbe
  • Patent number: 8390415
    Abstract: A coil component 10 includes: a magnetic core made of a magnetic alloy; a coil having a spiral part placed around a pillar part of the magnetic core; a magnetic sheath formed on the magnetic core in a manner covering the coil except for the bottom face of the magnetic core; and a first external terminal and second external terminal formed on the magnetic core and magnetic sheath; wherein the magnetic sheath has numerous voids inside.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: March 5, 2013
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Hideki Ogawa, Tsuyoshi Matsumoto
  • Publication number: 20130002384
    Abstract: The disclosed reactor has a case and a cylindrical molded coil assembly which is disposed inside of the case and which is formed by covering a coil with a resin, wherein the coil assembly is sealed by an iron powder mixed resin to which iron powder has been admixed. The reactor has a pillar provided as a single body with the case, and one or multiple ring-shaped core members. The ring-shaped core members are disposed outside the outer surface of the pillar such that the pillar is inserted inside the inner surface of said ring-shaped core members, and the assembly coil is disposed outside the outer surface of the ring-shaped core members such that the ring-shaped core members are inserted inside the inner surface of said coil assembly. The ring-shaped core members are sealed by means of the aforementioned iron powder-mixed resin.
    Type: Application
    Filed: June 22, 2010
    Publication date: January 3, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shuji Tokota, Masaki Sugiyama, Shinjiro Saigusa, Nobuki Shinohara
  • Publication number: 20120286915
    Abstract: An electric device including windings and magnetic cores, the device further including an encapsulating plastic encasement which includes an inner part and an outer part, the inner part being an inner insulating resin composition of thermosetting material encapsulating components of the device, and the outer part being a shell of a thermoplastic material which at least partly encloses the resin composition in contact therewith. Some components of the device are located in inner boxes encapsulated by the inner insulating resin composition. The invention also relates to a method for manufacturing such a device. According to the method the shell is used as the mould form when moulding the insulating resin composition, and some components of the device are placed in boxes before inserting them into the shell.
    Type: Application
    Filed: July 23, 2012
    Publication date: November 15, 2012
    Inventors: Alessandro Mattozzi, Dariusz Bednarowski, Hoan Le, Lukasz Malinowski, Roman Pernica
  • Patent number: 8289116
    Abstract: A spark plug coil assembly has a primary core bearing primary windings and a secondary winding spool around which secondary windings are wound and in which the primary core is received. A case receives the spool with core. The entire case can be made of composite Iron to function as a magnetic return path for the core, or a composite Iron shield can be overmolded to an otherwise plastic case.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: October 16, 2012
    Assignee: Delphi Technologies, Inc.
    Inventors: Edgard Wolf, Albert Anthony Skinner, Mark Albert Paul
  • Patent number: 8279033
    Abstract: A power transformer apparatus and method of assembling are provided. In one aspect, a method of assembling a transformer is provided. The method includes providing a heat sink including a plurality of exterior ribs, wherein the heat sink forms a bottom wall of an enclosure. The method also includes coupling at least one diaphragm to the heat sink such that a bottom surface of the diaphragm is in contact with the heat sink, coupling at least one winding to the at least one diaphragm, and coupling a terminal board to the heat sink such that a plurality of spacers are positioned between the terminal board and the heat sink.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: October 2, 2012
    Assignee: Tech Design, L.L.C.
    Inventor: O. Stephan Irgens
  • Patent number: 8279035
    Abstract: A compact reactor with excellent productivity and heat dissipation is provided. Reactor 1? includes a coil formed by spirally winding a wire 2w and a magnetic core 3 having an inside core portion inserted into the coil and an outside core portion 32 coupled to the inside core portion. These core portions form a closed magnetic circuit. The coil is covered with an inside resin portion 4 on the outer circumference thereof to form a coil molded unit 20? with its shape being held. The outer circumference of a combination unit 10 of the coil molded unit 20? and the magnetic core 3 is covered with an outside resin portion 5?. Reactor 1? does not have a case and is thus compact. A surface of the outside core portion 32 on the installation side (core installation surface 32d) is exposed form the outside resin portion 5? and is in direct contact with a fixed object, thereby achieving excellent heat dissipation.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: October 2, 2012
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kouhei Yoshikawa, Masayuki Katou, Atsushi Itou, Shinichiro Yamamoto, Hajime Kawaguchi
  • Patent number: 8269595
    Abstract: A coil unit includes a planar coil, a coil-receiving housing having a depression that receives the planar coil, the planar coil being disposed in the coil-receiving housing so that a transmission side of the planar coil faces a bottom of the depression, and a substrate having a mounting surface that is provided with a mounted component and faces a non-transmission side of the planar coil, an inner end lead line and an outer end lead line of the planar coil being connected to the substrate. The substrate is secured as a lid of the coil-receiving housing on an open end side of the depression of the coil-receiving housing.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: September 18, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Hirofumi Okada, Yoichiro Kondo
  • Publication number: 20120200381
    Abstract: A molded coil according to the present invention includes a coil body that is formed by an elongated insulation-coated conductor. The coil body has a spiral portion winded around in a spiral manner, a first end portion forming a beginning end of the spiral portion, and a second end portion forming a terminating end of the spiral portion. The molded coil also includes an insulative locking member that keeps a shape of the spiral portion so as to prevent the spiral portion from expanding in a vertical direction, and an insulative resin body that covers the spiral portion with the locking member being attached thereto.
    Type: Application
    Filed: January 12, 2012
    Publication date: August 9, 2012
    Applicant: Suncall Corporation
    Inventors: Motoaki KIMURA, Takashi Fujimura
  • Patent number: 8237532
    Abstract: An electronic circuit device 1 arranged with a first substrate 11, a core 33 (magnetic body) mounted on the first substrate 11, a resin sealing body 17 which covers the first substrate 11 and the core 33, and a curable type stress relieving material 35 which reduces stress applied to the core 33 by the resin sealing body 17 is arranged within the resin sealing body 33 from the side surface periphery of the core 33 across to the first substrate 11.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: August 7, 2012
    Assignee: Sanken Electric Co., Ltd.
    Inventor: Ryuji Takada
  • Patent number: 8212641
    Abstract: An electronic device including a core, at least a wire and a magnetic material is provided. The core includes a pillar, a top board and a bottom board. The pillar is disposed between the top board and the bottom board. An area of the top board is smaller than an area of the bottom board. A winding space is fanned among the top board, the bottom board and the pillar. The wire is winded around the pillar and located in the winding space. The magnetic material fills the winding space to encapsulate the wire. The magnetic material includes a resin and a metallic powder, wherein an average particle diameter of the magnetic powder is smaller than 20 ?m.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: July 3, 2012
    Assignee: Cyntec Co., Ltd.
    Inventors: Tsung-Chan Wu, Roger Hsieh, Yi-Min Huang, Lan-Chin Hsieh
  • Patent number: 8203411
    Abstract: The invention comprises a potted inductor, where a solid potting material substantially contacting the inductor enhances cooling of the inductor. The inductor comprises an annular core composed of a distributed gap material, where the distributed gap material includes sub-millimeter particles of alternating magnetic and non-magnetic layers separated by gaps. The potting material includes a urethane, resin, epoxy, or the like combined with a lower thermal impedance additive, such as a silica sand or an aluminum oxide. Optionally, one or more cooling lines direct a circulating coolant flow through the potting material, around the inductor, and/or through the inductor.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 19, 2012
    Inventor: Grant A. MacLennan
  • Patent number: 8181334
    Abstract: A method is provided for producing windings for a dry-type transformer with in each case one winding for the low voltage (LV winding) and one for the high voltage (HV winding). The LV and HV windings are each electrically insulated from one another and have layers which are electrically insulated from one another by virtue of, initially, the winding for the low voltage being produced from electrically conductive wire or tape material and an insulating layer including resin-impregnated fibre material. Prior to the application of the HV winding, the maximum insulating thickness for the layer insulation and the number of fiber rovings corresponding to this insulating thickness can be determined, and each winding layer and the associated insulating layer can be produced simultaneously with a physical offset with respect to one another.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: May 22, 2012
    Assignee: ABB Technology AG
    Inventors: Benjamin Weber, Frank Cornelius, Jens Tepper, Oliver Becker, Paul Szasz