Coil Turns Cemented To Support Or Embedded In Plastic Patents (Class 336/205)
  • Patent number: 10923271
    Abstract: A core is provided that includes a corner part facing a winding wound on a shaft part, the corner part being chamfered into a curved surface shape.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: February 16, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Takeshi Watanabe, Kenji Okamoto
  • Patent number: 10811183
    Abstract: The coil component includes a magnetic body containing a metallic material and a resin material, a coil conductor embedded in the magnetic body, and a pair of outer electrodes electrically connected to ends of the coil conductor. The coil conductor includes an exposed portion at each end portion of the coil conductor, and a covered portion covered with an insulating substance disposed between the exposed portions. The covered portion is disposed inside a face of the magnetic body on which the outer electrodes are disposed.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: October 20, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Kenichi Araki
  • Patent number: 10770221
    Abstract: A coil component includes an air-core coil embedded in a magnetic body constituted by resin and metal magnetic grains. Both ends of the coil are exposed on the surface of the magnetic body, and the side on which both ends are exposed is polished and etched to form terminal electrodes. To be specific, an underlying layer of metal material is formed across the surface of the magnetic body and the ends by means of sputtering, and then a cover layer is formed. Where the magnetic body contacts the underlying layer, the areas where the underlying layer is in contact with the resin ensure insulation, while the contact between the underlying layer and the exposed parts of the metal magnetic grains ensures adhesion, thus increasing the adhesion strength with respect to the terminal electrodes.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 8, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Daiki Mimura, Toshiyuki Yagasaki
  • Patent number: 10679784
    Abstract: A high current transformer winding made from a flat conductor having opposing ends that are shaped (e.g. a lateral protrusion), such that when a middle portion of the conductor is wound around a transformer core, one or both opposing ends protrude to allow operative connection to a power source.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 9, 2020
    Assignee: VANNER, INC.
    Inventors: Alexander Isurin, Alexander Cook
  • Patent number: 10468175
    Abstract: An annular core includes an upper core and a lower core. A coil is attached to the leg of the annular core in a way that the winding axis is aligned in the vertical direction. The surface of the upper core is covered by an upper cover formed of resin. The surface of the lower core is covered by the lower cover formed of resin. A casing formed of metal includes a bottom plate having an opening, and a side wall integrated with the bottom plate, and the lower core, the coil, and the upper core are housed in the casing. A part of the lower cover is exposed via the opening of the casing. A filler resin is filled in a gap between the circumference of the annular core and the coil, and the side wall of the casing or the lower cover.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: November 5, 2019
    Assignee: TAMURA CORPORATION
    Inventors: Kotaro Suzuki, Tsutomu Hamada
  • Patent number: 10398029
    Abstract: A transformer is configured to include a pair of cores and that each have an inner leg, wherein a primary winding that is wound around a bobbin having a hollow into which the inner legs of the cores and are inserted, and a secondary winding that has a hollow into which the inner legs of the cores and are inserted and that is constituted of a conductor formed by die-cutting a metal plate into a ring, are dispersedly arranged over the inner legs of the cores and. The bobbin has bobbin support portions that come into contact with a surface of a printed circuit board on which the transformer is implemented.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: August 27, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Qichen Wang, Satoru Fujita, Takashi Kuwabara, Nobuyuki Tawada
  • Patent number: 10170236
    Abstract: A coil unit includes: a first case; a second case; a ferrite plate; a coil; a shield member; and a seal member. The ferrite plate, the coil and the shield member are arranged inside an accommodation space. The first case includes a first plate portion, a first circumferential wall portion and a first joint face. The second case includes a second plate portion, a second circumferential wall portion, a second joint face, a protruding portion and a through-hole. At least part of a portion at which the first joint face and the second joint face are joined with each other is located closer to the second plate portion than the ferrite plate. An inner periphery of the second case, which defines the through-hole, includes a large-diameter portion and a small-diameter portion respectively provided at both ends. The seal member is arranged inside the large-diameter portion.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: January 1, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Taiga Doi
  • Patent number: 10074461
    Abstract: The invention relates to an electrical flat conductor (40, 60, 80, 100) for motor vehicles with a flat conductor core (42, 62, 82, 102) of electrically conductive flat conductor material and with an insulation of an insulating material encasing the flat conductor core (42, 62, 82, 102), wherein the height (Hk) of the flat conductor core (42, 62, 82, 102) is less than the width (Bk) of the flat conductor core, wherein the flat conductor core (42, 62, 82, 102) has at least one narrow side (46a-b, 68a-b, 86a-b, 106a-b), which limits the width of the flat conductor core (42, 62, 82, 102) on one side, wherein the at least one narrow side (46a-b, 68a-b, 86a-b, 106a-b) of the flat conductor core (42, 62, 82, 102) has at least in sections over the length of the flat conductor (40, 60, 80, 100) a partial surface (52a-b, 70a-b, 114a-b), whose contour in the cross-section of the flat conductor core (42, 62, 82, 102) forms a straight section (46a-b, 54a-b, 72a-b, 116a-b), which extends over a part of the height of the fl
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: September 11, 2018
    Assignee: Auto-Kabel Management GmbH
    Inventors: Peter Lausch, Sebastian Martens
  • Patent number: 9761366
    Abstract: A dry-type transformer for mobile applications includes a transformer core, at least one radially inner first winding segment, and at least one radially outer, second hollow cylindrical winding segment. The segments are wound around a common winding axis and the transformer core passes therethrough. The segments are nested inside one another and radially spaced apart from one another, such that a hollow cylindrical cooling duct is formed therebetween. Spacing is achieved by spacer elements arranged such that the cooling duct allows a passage of coolant in an axial direction. The spacer elements are formed and arranged along the radial circumference of the cooling duct over the axial length thereof such that the proportionate weight of the horizontal transformer can be borne on at least one contact surface of the at least second winding segment without causing deformation to the cooling duct.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 12, 2017
    Assignee: ABB Schweiz AG
    Inventors: Benjamin Weber, Michael Luckey, Wolfgang Mönig, Marcos Bockholt
  • Patent number: 9734943
    Abstract: A conductive structure for an electromagnetic device includes a conductive sheet and a plurality of protrusions. The conductive sheet includes two electrical connection terminals. The protrusions are arranged between the electrical connection terminals. The protrusions include a support. The support is connected to the conductive sheet. Adjacent two of the protrusions define a first heat dissipation passage.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: August 15, 2017
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Teng Liu, Ai-Xing Tong
  • Patent number: 9493366
    Abstract: A dielectric barrier discharge lamp assembly for a fluid treatment system. The lamp assembly can include an inductive secondary, first and second electrodes coupled to the inductive secondary, and a lamp including a dielectric barrier interposed between the first and second electrodes. The dielectric barrier can define a discharge chamber including a discharge gas, and one of the first and second electrodes can extend within the discharge chamber. The inductive secondary can be adapted to receive power from a nearby inductive primary to promote a dielectric barrier discharge in the discharge chamber. The resulting dielectric barrier discharge can generate ultraviolet light for the treatment of air or water, or for other applications.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: November 15, 2016
    Assignee: ACCESS BUSINESS GROUP INTERNATIONAL LLC
    Inventors: Karlis Vecziedins, Michael E. Miles, Joshua K. Schwannecke, David A. Meekhof, Donovan L. Squires, William T. Stoner, Jr., Matthew J. Norconk, Richard B. Bylsma, Matthew J. Lilley
  • Patent number: 9378882
    Abstract: Circuits and methods of fabricating circuits are disclosed herein. A method of fabricating an electronic circuit includes placing an electronic component on a substrate. A ferromagnetic material is mixed into a mold compound to produce a mixed mold compound having an increased permeability over the mold compound. The mixed mold compound is applied to the substrate by way of a transfer mold process, wherein the mixed mold compound encapsulates the electronic component.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: June 28, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Steven Kummerl, Richard J. Saye
  • Patent number: 9030286
    Abstract: Flexible metamaterials and three-dimensional metamaterials operable in the terahertz range are disclosed. Methods are disclosed for fabricating terahertz response metamaterials using microfluidic-jetted techniques. Layers of material including substrate and deposited material are stacked to form three dimensional bulk metamaterials. The fabricated metamaterials act as left-handed metamaterials in the range 0.1 to 3.0 THz.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: May 12, 2015
    Assignee: New Jersey Institute of Technology
    Inventors: Yew Li Hor, Hee Chuan Lim, Yew Fong Hor, John Francis Federici
  • 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: 8922319
    Abstract: A reactor includes: a molded coil including two coils integrally molded with resin; and two U-shaped cores each having core insertion portions inserted in the coils in a coil axial direction, and the cores being joined in a track-like form by interposing gap elements between them to form a core assembly. The molded coil has a substantially hexahedral shape, each of the cores includes a core outer portion joining the core insertion portions, a resin layer made of magnetic-metal containing resin consisting of binder resin and magnetic metal powder mixed therein is formed on outer surfaces of the core outer portions, the molded coil includes a fastening retaining part for holding and fixing the reactor to a cabinet with a fastening member so that the cabinet supports the reactor, and the molded coil is held apart from the cabinet by the fastening member and the fastening-member retaining part.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: December 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Shuji Yokota
  • Patent number: 8779884
    Abstract: There is provided a multilayered inductor, including: an inductor body; a coil part formed on the inductor body and having a conductive circuit and a conductive via; and external electrodes formed on both end surfaces of the inductor body, wherein the inductor body includes 65 to 95 wt % of a metallic magnetic material and 5 to 35 wt % of an organic material.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: July 15, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Myeong Gi Kim, Sung Yong An
  • Patent number: 8754739
    Abstract: A reactor having a good heat dissipation effect is provided. The reactor includes one coil formed by winding a wire, a magnetic core arranged inside and outside the coil and forming a closed magnetic circuit, and a case for housing an assembly of the coil and the magnetic core. An end surface of the coil has a race track shape, and the coil is housed in the case such that the axial direction of the coil is parallel to an outer bottom surface of the case. A part of an outer peripheral surface of the coil is covered with the magnetic core (outer core portion), and a remaining part thereof not covered with the magnetic core is contacted with an inner bottom surface of the case. Since a part (mainly a linear portion) of the outer peripheral surface of the coil is directly contacted with the inner bottom surface of the case, heat of the coil can be directly dissipated such that the heat is released through the case to an installation target, e.g., a water cooling base, on which the case is installed.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: June 17, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Kazuhiro Inaba
  • Patent number: 8754738
    Abstract: A transformer having a high degree of coupling is connected between, for example, an antenna element and a power feed circuit. The transformer having a high degree of coupling includes a first inductance element connected to the power feed circuit and a second inductance element coupled to the first inductance element. A first end of the first inductance element is connected to the power feed circuit and a second end of the first inductance element is connected to the antenna element. A first end of the second inductance element is connected to the antenna element and a second end of the second inductance element is grounded.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: June 17, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Noboru Kato, Kenichi Ishizuka
  • Patent number: 8749335
    Abstract: A reactor comprises a reactor core in which two U-shaped core members are connected in a ring shape with gap sections including adhesive layers therebetween, a primary insert-molded resin part which is provided covering leg parts of the core member and which includes joint sections formed around end surfaces of the leg parts a coil placed around the gap sections and the leg parts of the core members, and a secondary insert-molded resin part which is made of a thermoplastic resin and which is insert-molded around the coil to fix the coil on the reactor core and fix the leg parts of the two core members in a connected state, wherein the joint sections of the primary insert-molded resin parts are fitted to each other in a state where the core members are placed connected in a ring shape, to form a peripheral wall surrounding the gap section.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: June 10, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuhiro Ueno, Fumio Nomizo
  • Patent number: 8749337
    Abstract: A method for manufacturing a conductive coil, the method comprising using a semiconductor fabrication process (e.g. TSV) to manufacture a coil, typically a planar spiral conductive coil.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: June 10, 2014
    Assignee: Maradin Technologies Ltd.
    Inventors: Adi Baram, Matan Naftali, Sharon Hornstein, Inbal Herer, Menashe Yehiel
  • Patent number: 8749992
    Abstract: For automatic attachment of electronic components onto circuit boards, it is proposed that the electronic component be provided with a holding element that comprises a gripping point for a suction gripper. The holding element is designed as a clip that can be connected to the electronic component. The connecting occurs preferably by a snap-on action, wherein a form fit or positive fit is achieved by the shape of the clip, which is made of plastic. Preferably, the clip comprises a rib on the inside thereof facing the electronic component, said rib extending over at least half the periphery and engaging in a gap in the surface of the electronic component. If the electronic component is a coil, the rib, which is directed inward, can run along a helical line.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: June 10, 2014
    Assignee: Wuerth Elektronik iBE GmbH
    Inventor: Oliver Konz
  • Patent number: 8730001
    Abstract: Provided is a reactor and a reactor component that can prevent cracking of a resin portion that is interposed between a coil and an internal core portion. The reactor includes a coil 10 and a core that includes an internal core portion 22 and a couple core portion 24. The coil 10 is formed by helically winding a wire. The internal core portion 22 is disposed inside the coil and forms a part of a closed magnetic path. The couple core portion 24 is joined to the internal core portion 22 and forms the remaining part of the closed magnetic path. The reactor includes a resin portion (internal resin portion 30) including a region that is interposed between the coil 10 and the internal core portion 22, and a cushioning member 70 that is interposed between the resin portion and the internal core portion 22 and that does not cover the couple core portion 24. It is preferable that the material of the cushioning member 70 has a Young's modulus that is smaller than a resin material of the resin portion.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: May 20, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kouhei Yoshikawa, Masayuki Katou
  • Patent number: 8692643
    Abstract: An exemplary transformer winding including at least two hollow-cylindrical, axially adjacent winding modules, which are arranged about a common winding axis and have an electrical conductor wound in layers, and a common electrical insulting layer, through which the winding modules are enveloped. The insulating layer has at least one annular, radial depression or annular, radial elevation, which is salient transversely to the winding axis on the radial outer face of said insulating layer.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 8, 2014
    Assignee: ABB Technology AG
    Inventors: Benjamin Weber, Bhavesh Patel, Burak Esenlik, Frank Cornelius, Marcos Bockholt, Jens Tepper, Karl-Heinz Zillmann
  • 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: 8633568
    Abstract: Provided is an MCP including a plurality chips stacked therein. Each of the chips includes a plurality of inductor pads configured to transmit power or signals, and at both sides of a reference inductor pad, a first and a second inductor pads are formed to generate magnetic fluxes in different directions from each other.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: January 21, 2014
    Assignee: SK Hynix Inc.
    Inventors: Young Won Kim, Jun Ho Lee, Hyun Seok Kim, Boo Ho Jung, Sun Ki Cho, Yang Hee Kim
  • Patent number: 8633792
    Abstract: An electronic device (1) is provided with at least a base part (2, 22, 32, 42) and an electronic module (3). The base part (2, 22, 32, 42) comprises a soft magnetic layer (5, 25, 35, 45) and at least a primary coil (7). The electronic module (3) comprises at least one electronic element and at least a secondary coil (8) adapted to inductively interact with the primary coil (7). The primary coil (7) is located in a hole (6) of the soft magnetic layer (5, 25, 35, 45). The electronic module (3) further comprises at least one magnet (9) adapted to magnetically interact with the soft magnetic layer (5, 25, 35, 45).
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: January 21, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Oscar Hendrikus Willemsen, Eberhard Waffenschmidt, Petrus Johannes Bremer
  • Patent number: 8624701
    Abstract: An assembled circuit comprising a substrate, a coil, a first conductive segment, a second conductive segment, a first through-hole connector and a second through-hole connector is disclosed. The first conductive segment is electrically connected to one end of the first through-hole connector, the other end of the first through-hole connector is electrically connected to one end of the second through-hole connector via the first conductive segment, and the other end of the second through-hole connector is electrically connected to the second conductive segment.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: January 7, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Jian-Hong Zeng, Wei Yang, Shou-Yu Hong, Jian-Ping Ying
  • Patent number: 8614614
    Abstract: It is described a single-phase or three-phase distribution electric transformer, of solid insulation, for use in aerial installation, in poles, in platforms or pedestals, or installation in underground distribution network for operation in air environment, semi-submerged or submerged. Such transformer comprises at least one high voltage winding (3) and at least one low voltage winding (2) concentrically assembled around a core column (1.2,1.3), the low voltage and high voltage windings (2,3) being electrically isolated from a solid material, a core window (20) being defined as a space between two core columns (1.2,1.3), the transformer comprising at least one electrical insulation sheet (4) assembled on at least a core window (20) of said transformer, the assembly of the electrical insulation sheet (4) being defined in the longitudinal direction (300) of the transformer. Such sheet (4) avoids the formation of spiral around the core by immersion water or conductive dust.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 24, 2013
    Assignee: Siemens Ltda.
    Inventors: Martin Alsina Navarro, Jose Carlos Medeiros, Eledilson Clayton Betiol, Marilucia Martinato, Renan Junqueira Dias, Jean Carlos da Silva
  • Patent number: 8610531
    Abstract: A microcoil is manufactured by rolling a trace unit in such a way as to form at least one winding. The trace unit is comprised of a conductive trace attached to a flexible insulating film. A preferred embodiment of the microcoil contains both a first winding and a second winding electrically connected and spaced apart by ajoining portion. The microcoil may be used for internal magnetic resonance imaging of patient by attaching the microcoil to a catheter.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: December 17, 2013
    Assignee: Medtronic, Inc.
    Inventor: Gerald W. Mills
  • Patent number: 8610526
    Abstract: Disclosed is a resin composition, which comprises a thermosetting resin contained therein in an amount of 40 volume % or more, and a wax contained therein in an amount of 5 to 30 volume %, wherein: the thermosetting resin exists in liquid form at room temperature; and the wax exists in powder form at room temperature and has a melting point of 70 to 150° C., and wherein the resin composition has a viscosity of 50000 to 150000 mPa·s as measured at room temperature.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: December 17, 2013
    Assignee: TOKO, Inc.
    Inventors: Koichi Saito, Yukio Nagashima, Kunio Sasamori
  • Patent number: 8598973
    Abstract: A reactor that is fabricated with high productivity is provided. The reactor 1 includes an annular magnetic core 11, a coil molded product 12A, and an external resin portion 13. The coil molded product 12A is disposed around an outer periphery of the magnetic core 11, the external resin portion 13 covers an outer periphery of an assembly 10 of the magnetic core 11 and the coil molded product 12A. The magnetic core 2 includes a plurality of core pieces that are combined so as to form an annular shape. The magnetic core 2 is fixed in the annular shape using the external resin portion 13 that covers the magnetic core without use of adhesive. The coil molded product 12A includes a coil 12 formed of a helically wound wire 12w and an internal resin portion 12c that maintains the coil 12 in a compressed state. Since the magnetic core 11 is formed without adhesive, a bonding step is not required. Due to use of the coil molded product 12A, the coil 12 needs not be compressed while forming the reactor 1.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: December 3, 2013
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Hajime Kawaguchi
  • Patent number: 8593247
    Abstract: There is provided a chip-type coil component, including: a body formed by laminating a plurality of magnetic layers, and having a lower surface provided as a mounting area, an upper surface corresponding thereto, two end surfaces, and two lateral surfaces; conductor patterns formed on the magnetic layers, respectively, and connected to each other to have a coil structure; and external electrodes formed on at least one external surface of the body, and electrically connected to the conductor patterns, the external electrodes each being formed on the lower surface and spaced apart from edges thereof. Short circuits between electronic components may be prevented and sticking strength between the chip-type coil component and a substrate may be increased.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 26, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Dong Jin Jeong, Jae Wook Lee
  • Patent number: 8592967
    Abstract: A semiconductor apparatus comprising an integrated semiconductor circuit device having pluralities of electrode pads, pluralities of first external terminals connected to the electrode pads of the integrated semiconductor circuit device, an inductor disposed in a region surrounded by the first external terminals, and a resin portion sealing them, the integrated semiconductor circuit device being arranged on an upper surface of the inductor, and the inductor being exposed from a lower surface of the resin portion together with the first external terminals.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 26, 2013
    Assignee: Hitachi Metals, Ltd.
    Inventor: Tohru Umeno
  • Patent number: 8581685
    Abstract: A reactor includes: a first core having end surfaces; a second core having end surfaces facing the end surfaces of the first core; coils wound around at least part of the circumference of the first core and the second core; and gap members arranged between the end surfaces of the first core and the end surfaces of the second core. The coils and the gap members are integrally molded with a first resin in a state where the first and second cores are not provided. The coils and the first and second cores are integrally molded with a second resin in a state where the gap members are sandwiched between the end surfaces of the first core and the end surfaces of the second core.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: November 12, 2013
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventor: Hiroshi Ono
  • Patent number: 8519699
    Abstract: An electrical current sensor is disclosed having conducting coil portion and an insulating body portion, the conducting coil portion comprising a coil portion with one or more helical windings made of a wire conductor and encircling a central cavity. Adjacent windings are separated by a dielectrically effective gap, wherein the insulating body portion comprises a dielectric spacer comprising a helical gap maintaining protuberance configured for insertion in the central cavity of the windings such that the gap maintaining protuberance is at least partially inserted in the gap between windings.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: August 27, 2013
    Assignee: LEM Intellectual Property SA
    Inventors: Mikio Kurosawa, Takashi Kato
  • Patent number: 8487732
    Abstract: There are many varieties of windings. Coils adopting an edgewise winding wire in which winding wires are wound around in the radial direction of the coil have a wide flux linkage area orthogonal to the electric wire, so that stray loss within the wire is increased, winding wire loss is increased and temperature is raised thereby. The present invention provides an arrangement in which a plurality of coil units are prepared and connected via external coupling terminals. At this time, winding is performed so that the contact faces of the coil units have equal potentials, so that there is no need to ensure an insulation distance between coils, and the coils can be downsized. Therefore, the mass of the respective coils can be reduced. Taps disposed on the respective coils are arranged to have equal potentials, according to which the external coupling terminals can double as tap switch terminals, so that there is no need to provide a dedicated tap switch.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: July 16, 2013
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Masaki Takeuchi, Atsushi Suzuki, Tatsuhito Azegami
  • Patent number: 8456266
    Abstract: A vacuum cast or “solid” transformer coil assembly and a method of manufacturing thereof are provided. A solid transformer coil assembly, according to an embodiment of the invention, includes a dielectric substrate, the coil windings provided around the substrate, and an epoxy compound encapsulating the substrate and the coil windings. The substrate is provided with raised “buttons” comprising the same epoxy material as the epoxy compound used for encapsulation. The buttons maintain a specific distance between the coil and the dielectric substrate. The buttons are arranged such that they support the windings and allow the encapsulating epoxy to flow around them flooding the entire mold without entrapping air or creating voids.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: June 4, 2013
    Assignee: Engineered Products of Virginia, LLC
    Inventor: Curtis Frye
  • Patent number: 8410887
    Abstract: In a built-in-coil substrate, when viewed in perspective in a stacking direction in which insulating layers of a substrate body are stacked, mutually superposed second coil elements are located further inward than inner peripheries of mutually superposed first coil elements. A cavity is continuous between at least one of the second coil elements and one insulating layer that is in contact with the second coil element(s), and another insulating layer that opposes the second coil element(s) such that the second coil element(s) are exposed, and, when viewed in perspective in the stacking direction, the cavities have annular shapes and extend further inward than the outer peripheries of the mutually superposed first coil elements, there being an interval provided between the cavities and these outer peripheries, and further outward than the inner peripheries of the mutually superposed second coil elements.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: April 2, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Jyunichi Nanjyo, Hiroki Sakamoto
  • Patent number: 8350659
    Abstract: A transformer may include a first and a second continuous single piece multi-turn helical winding, one concentrically received by the other. The turns of the windings are electrically insulated from one another and spaced sufficiently close together to permit inductive coupling therebetween. The turns may be formed of a conductor having a rectangular cross-section, which may, or may not, include an electrically insulative sheath. The single piece multi-turn helical windings may have a continuous or smooth radius of curvature, with no discontinuities or singularities between first and second end terminals. The transformer may be formed by wrapping electrical conductor about a winding form. The transformer may be used in various electrical circuits, for example converter circuits.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: January 8, 2013
    Assignee: Crane Electronics, Inc.
    Inventors: Christopher Dziubek, David Perchlik, Jay Kuehny
  • Patent number: 8320136
    Abstract: An embodiment of an electronic component includes a circuit element disposed within a package, which includes a surface and at least one standoff protruding from the surface. For example, where the circuit element is an inductor in a power supply, the standoff may allow one to mount the inductor component over another component, such as a transistor component. Therefore, the layout area of such a power supply may be smaller than the layout area of a power supply in which the inductor and transistor components are mounted side by side.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: November 27, 2012
    Assignee: Intersil Americas Inc.
    Inventor: Kun Xing
  • Patent number: 8310327
    Abstract: The present invention provides an improved transformer (20), which broadly includes: a substrate (21) having first and second surfaces (22, 23); a first board (24) mounted on the substrate first surface; a second board (25) mounted on the substrate second surface; the boards being identical to one another and being mounted on the respective proximate substrate surfaces as mirror images of one another; each of the boards having a plurality of dielectric layers with electrically-conductive sheet windings (35, 36, 37, 38) embedded therein; and an assembled core (26, 28) operatively arranged to provide a path for magnetic flux attributable to a current in some of the windings. Third and fourth boards (71, 72) may be piggy-backed onto the first and second boards, respectively, to selectively vary the properties of the transformer.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: November 13, 2012
    Assignee: Moog Limited
    Inventors: Michael J. Willers, Raymond Walsh, Christopher Simmonds
  • Patent number: 8207812
    Abstract: A signal isolating transformer may be arranged such that a first coil of the signal isolating transformer is located in a medium voltage compartment and a second coil of the signal isolating transformer is located external to the medium voltage compartment. The transformer spans an opening defined by a grounded wall to isolate faults in the medium voltage compartment.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: June 26, 2012
    Assignee: Siemens Industry, Inc.
    Inventors: Albert Roc, Peter Willard Hammond
  • Patent number: 8201318
    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: July 10, 2008
    Date of Patent: June 19, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Kazuhiko Yamano
  • Publication number: 20120068804
    Abstract: In a solenoid magnet assembly, and a method for manufacture thereof, the magnet assembly includes a number of concentrically aligned coils, each including a winding impregnated with a resin. Each coil is mechanically restrained so as to hold the coils in fixed relative positions relative to each other when forming the magnet assembly. The mechanical restraint can be formed by annular support sections bonded to the respective coils, lugs bonded to the respective coils, or by lugs that are at least partially embedded in a crust formed on a radially outer surface of the respective windings.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 22, 2012
    Inventors: Ian Dunckley, David William Neil Edington, Edward Wedderburn Kershaw, Matthew John Longfield, Peter Neil Morgan
  • Patent number: 8112872
    Abstract: A coil component having an easily discernible orientation, and a method of producing such a coil component that facilitates the injection of resin. A coil component includes a core with a winding portion, first and second flanges disposed on either end of the winding portion, and a winding accommodating region defined by the winding portion and the first and second flanges, terminal electrodes disposed on the second flange and a winding wound about the winding portion and connected to the terminal electrodes. An insulating resin is formed over the winding at the winding accommodating region. A marker made from a material the same as the insulating resin is provided at outer peripheral surface of the flanges.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: February 14, 2012
    Assignee: TDK Corporation
    Inventors: Shinichi Sato, Satoshi Kurimoto, Makoto Morita, Akira Takashima, Sumio Takahashi, Yoshiaki Kitajima
  • Publication number: 20120019343
    Abstract: A coil device includes a first coil pattern, a second coil pattern, an insulating layer, a magnetic covering element and a number of conductive pillars. The second coil pattern is disposed above the first coil pattern, and is spaced apart from the first coil pattern. The insulating layer covers the first coil pattern and the second coil pattern and defines an opening surrounded by the first coil pattern and the second coil pattern. The magnetic covering element covers the insulating layer and extends into the opening. The conductive pillars are disposed within the magnetic covering element and are exposed from a bottom side of the magnetic covering element. A portion of the conductive pillars are electrically connected to the first coil pattern, and another portion of the conductive pillars are connected to the second coil pattern. The coil device can be easily manufactured.
    Type: Application
    Filed: July 11, 2011
    Publication date: January 26, 2012
    Applicant: CYNTEC CO., LTD.
    Inventors: Roger Hsieh, Cheng-Chang Lee, Chun-Tiao Liu
  • Publication number: 20110175697
    Abstract: The present invention provides a novel direct current thyristor valve saturated reactor includes: case, winding in the case, iron cores, cooling fins, pipes and press fit mechanism. The iron cores are coupled with winding. The invention having the following advantages: simple, modular design, low connection capacity of the wingding, fixed dimension, winding and irons well-cooled, small noise and vibration. The saturated reactor is particularly suitable used as the positive saturated reactor for high voltage current thyristor valve.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 21, 2011
    Applicant: CHINA ELECTRIC POWER RESEARCH INSTITUTE
    Inventors: Jialiang Wen, Xiaoguang Wei, Haiyu Yu, Sheng Zhang
  • Patent number: 7982575
    Abstract: An ignition coil, which includes a primary coil and a secondary coil, has an electrical insulating member. The electrical insulating member includes an insulating material being a base material. The electrical insulating member further includes a reactive agent being an additive added to the insulating material for causing dehydration-decomposition, so as to enhance durability when being applied with high voltage. Alternatively, a reactive agent is coated on a surface of the electrical insulating body for causing dehydration-decomposition, so as to enhance durability when being applied with high voltage.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: July 19, 2011
    Assignee: Denso Corporation
    Inventors: Junichi Wada, Junji Shirai
  • Patent number: 7973634
    Abstract: Disclosed is an electronic component, especially a coil with a coil core, in which the turns of the coil winding are spaced apart from each other at least at one point in the longitudinal direction of the coil. A plastic retaining element which overlaps both the coil core and at least the two adjacent turns of the coil winding in a longitudinal direction is sprayed on in the area of said point, whereby a connection between the coil core and the coil winding is created at the same time. The retaining element can be sprayed around a closed circumference of the coil while covering only a portion of the coil in the longitudinal direction thereof. Preferably, the retaining element is placed approximately in the center relative to the longitudinal extension of the coil.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: July 5, 2011
    Assignee: Wuerth Elektronik Ibe GmbH
    Inventor: Rupert Aumueller
  • Patent number: 7875524
    Abstract: The inductor for a semiconductor device includes at least one dielectric pattern selectively formed on a top of the interlayer dielectric, at least one first metal wire formed on a top of the interlayer dielectric, at least one second metal wire formed on a top of the dielectric pattern, and an upper protective film formed on the top of the interlayer dielectric to completely cover the first and second metal wires, wherein the first and second metal wires are alternately arranged at different vertical locations and are formed in a spiral configuration.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: January 25, 2011
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Nam Joo Kim