Plural Coils With Plural Cores Patents (Class 336/131)
  • Patent number: 11848498
    Abstract: Filter arrangement comprising an inner electric conductor comprising at least one inner conductor segment, an outer electric conductor at least partly surrounding the inner conductor, at least one dielectric element and at least one coil spring. The at least one dielectric element is arranged sandwiched between at least one inner conductor segment and the outer conductor to form a capacitance between the outer conductor and the inner conductor segment. The at least one coil spring is arranged inside said outer conductor to force the inner conductor segment and the at least one dielectric element against the outer conductor. The at least one coil spring is made from an electrically conducting material to form an inductance and is electrically connected with the inner conductor segment. An antenna feeding network and a multi-radiator antenna comprising such a filter arrangement is also provided.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: December 19, 2023
    Assignee: CELLMAX TECHNOLOGIES AB
    Inventors: Alf Ahlström, Anders Edquist
  • Patent number: 11703983
    Abstract: The application relates to a capacitance sensing circuit, which samples and holds a reference signal to generate an input reference signal, hereby, an input signal is generated to a sensing circuit. Thereby, the sensing circuit generates an output signal according to the input signal and a sensing signal, for the capacitance sensing.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: July 18, 2023
    Assignee: Sensortek Technology Corp
    Inventors: Tun-Ju Wang, Ching-Jen Tung, Chi-Huan Lu, Chun-Yu Lin, Yen-Shao Lin
  • Patent number: 11594921
    Abstract: A rotor assembly for an electric machine, e.g., of an electrified powertrain, includes a rotor having inner and outer diameter surfaces, and a rotor shaft connected to and surrounded by the rotor. The rotor has equally-spaced rotor magnetic poles each having a quadrature-axis (“q-axis”) and a pair of direct-axes (“d-axes”). At each of magnetic pole of the rotor, the rotor defines at least three arcuate notches, including a center notch bisected by the q-axis and a pair of additional arcuate notches symmetrically flanking the center notch. The rotor may include embedded permanent magnets, which may be arranged in a dual V-shaped configuration. Each additional notch may be positioned within a sweep of a top-layer opening angle of the magnets. The center notch and/or the pair of additional notches may define tangentially-continuous fillets which smoothly transition the notch into the outer diameter surface.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 28, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Peng Zhang, Song He, Michael C. Muir
  • Patent number: 11435205
    Abstract: An inductive position sensor for determining the position of a moving body along a linear or rotary path (F), including: a moving target (3) adapted to modify an electromagnetic field; a fixed circuit board (5) extending along a limited portion and including a primary coil (7) surrounding two secondary coils (8, 9) having substantially identical lengths (L) and having shapes of sine and cosine functions; a current generator (11) to create an inductive coupling modulated by the position of the target; a detector (13) of the linear or angular position of the target; and a system for balancing the coupling between the primary coil (7) and the secondary coils (8, 9) to compensate for the measurement offset induced by the proximity between the secondary coils (8, 9) and the end segments (7b) of the primary coil (7).
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: September 6, 2022
    Assignee: ELECTRICFIL AUTOMOTIVE
    Inventors: Jean-Philippe Ferreira Da Cunha, Rainer Möller
  • Patent number: 11422010
    Abstract: An electromagnetic induction type encoder includes a detection head and a scale. The detection head has a first transceiver coil to generate magnetic flux with respect to a first track and a second transceiver coil to generate magnetic flux with respect to a second track. The scale has a first plurality of periodical elements with respect to the first track and a second plurality of periodical elements with respect to the second track. The detection head has a receiver coil that continuously extends from the first track to the second track, is electromagnetically coupled with the magnetic flux generated by the first plurality of periodical elements and the magnetic flux generated by the second plurality of periodical elements, and detects a phase of the magnetic flux generated by the first plurality of periodical elements and a phase of the magnetic flux generated by the second plurality of periodical elements.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: August 23, 2022
    Assignee: MITUTOYO CORPORATION
    Inventor: Hiroto Kubozono
  • Patent number: 10395821
    Abstract: Disclosed herein is a rotary type magnetic coupling device including first and second coils magnetically coupled to each other used for a rotator. Each of the first and second coils is a loop-shaped having an opening surrounding a rotary axis of the rotator. Each of the first and second coils includes first and second wiring parts extending in a peripheral direction of the rotator, a third wiring part bent in the rotary axis direction from one end of the first and second wiring parts, and a fourth wiring part bent in the rotary axis direction from other end of the first and second wiring parts. At least one of the first and second coils is configured such that the third and fourth wiring parts match or overlap each other when viewed in a radial direction substantially orthogonal to the rotary axis.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: August 27, 2019
    Assignee: TDK CORPORATION
    Inventors: Kazuyoshi Hanabusa, Takashi Urano
  • Patent number: 10317431
    Abstract: A circuit interrupting device includes a grounded neutral transformer core, a high frequency transformer core, and a differential transformer core nested within the grounded neutral transformer core and/or the high frequency transformer core. The grounded neutral transformer core and the high frequency transformer core are disposed in a stacked configuration with one another.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: June 11, 2019
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Ronald Jansen, Michael Kamor, Michael Ostrovsky, Alfred J. Lombardi
  • Patent number: 10290419
    Abstract: A power supply system including: a power supply configured to provide a constant AC current; a power transmission line connected to the power supply to form a closed circuit; and at least one pickup configured to accept and slidingly engage with the power transmission line such that the pickup completely encircles a portion of the power transmission line threaded through the pickup, and to inductively couple to the power transmission line, wherein the at least one pickup can be positioned at any point along the length of the power transmission line by sliding it along the power transmission line.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: May 14, 2019
    Assignee: HUNZA HOLDINGS LIMITED
    Inventor: Andrew William Cunningham
  • Patent number: 9368262
    Abstract: An electromagnetic actuation device with an actuation element, which can be adjusted relative to a stator on the basis of a magnetic actuation force which can be generated by the stator, wherein the stator has a coil winding, the winding wire of which is guided to a contact element bent at a bending region and is fixedly and electrically conductively connected to the same, wherein the contact element (5) has a depression geometry (9) in a bending region (7), which shortens a bending path of the winding wire (4) and through which the winding wire (4) passes.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: June 14, 2016
    Assignee: ETO Magnetic GmbH
    Inventor: Thomas Golz
  • Patent number: 9041500
    Abstract: A magnetic core includes a first core having a predetermined magnetic permeability and a second core formed of the same material as the first core. The second core forms a closed magnetic circuit together with the first core. The second core is configured to radiate heat through a heat radiating unit. At least one of the first core and the second core is configured to be wound with a coil. The magnetic core includes a third core that is arranged between the first core and the second core and has a lower magnetic permeability than the first core.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: May 26, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Sergey Moiseev
  • Patent number: 8954001
    Abstract: An inductive signal interface includes a coil assembly which has one or more inductive coils. The inductive signal interface also has a bridge circuit that couples to the coil assembly to a power input/output (I/O). The bridge circuit has components that operate to enable the inductive signal interface to selectively operate in either a power transmit mode or a power receive mode.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventor: Manjirnath Chatterjee
  • Publication number: 20140333403
    Abstract: Power swivel for transmitting electrical power from a first terminal to a second terminal, includes a central part with a huh and an outer ring of a magnetic material, coaxial with and surrounding the hub, the outer ring and central part being rotatable relative to one another around a vertical axis, at least two radial arms of a magnetic material projecting from the hub or from the outer ring, adjacent arms being spaced-apart, each arm carrying a conductor wound around the arm to form a coil for generating a magnetic flux along a radial flux path through the arm, the conductors being connected to the first terminal, wherein the outer ring or the hub has a cylindrical surface at close proximity to free ends of the arms, a plurality of axially extending conductors being distributed along the circumference of the outer ring or hub at or near the cylindrical surface.
    Type: Application
    Filed: July 24, 2014
    Publication date: November 13, 2014
    Inventor: Mauro BEDINI
  • Patent number: 8847718
    Abstract: Described herein are rotary transformers for coupling signals between components that rotate relative to one another. In an exemplary embodiment, a rotary transformer comprises a rotary shaft, a first magnetic core on the rotary shaft, and a first winding wound around the first magnetic core. The rotary transformer farther comprises a hollow second magnetic core, and a second winding wound along the inner wall of the second magnetic core. During operation, the first winding on the rotary shaft rotates within the second winding with the magnetic cores magnetically coupling signals between the two windings. Also, the first and second windings are closely spaced to provide capacitive coupling between the windings that extends the frequency response of the transformer. In one embodiment, the windings comprises substantially flat conductors wound in the shape of the windings. In another embodiment, each of the windings comprises circular loops connected by jogs.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: September 30, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Donald Masters, Stuart L. Carp, Peter Thornton
  • Patent number: 8766758
    Abstract: A high-frequency transformer includes a plurality of cores having a central leg, the cores being arranged to form core windows that are separated by the central legs. A primary winding has a predetermined length of electrically conductive wire that is wound about the central legs and extends through each of the core windows. One or more secondary windings extend through each core window, generally adjacent to the primary winding. The core windows are sized and shaped to provide a predetermined amount of leakage inductance between the primary and secondary windings, and are further adapted to provide a path for cooling air through an interior portion of the transformer.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: July 1, 2014
    Assignee: Solid State Controls, LLC
    Inventor: Matthew Bridge
  • Patent number: 8665047
    Abstract: A transformer system includes a cabinet and at least one toroidal transformer with each toroidal transformer being supported in a cradle. Each cradle is mounted in the cabinet and supports its toroidal transformer in a vertical or horizontal orientation such that a central air-filled region thereof is arranged in a substantially horizontal or vertical orientation, respectively. The cradle supports active and passive cooling arrangements for the toroidal transformer, while also providing modular attributes for the transformer system.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: March 4, 2014
    Assignee: Marina Electrical Equipment, Inc.
    Inventors: Robert C. Dively, Barry J. Sharp
  • Publication number: 20130289412
    Abstract: Rotational intravascular ultrasound (IVUS) imaging devices, systems, and methods are provided. The present disclosure is particularly directed to rotary transformers incorporating flex circuits that are suitable for use in rotational IVUS systems. In one embodiment, a rotary transformer for a rotational IVUS device includes: a rotational component and a stationary component. At least one of the rotational and stationary components includes a core formed of a magnetically conductive material and a flex circuit coupled to the core. In some instances, the flex circuit is coupled to the core such that a coil portion of the flex circuit is received within a recess of the core and an extension of the flex circuit extending from the coil portion extends through an opening of the core.
    Type: Application
    Filed: March 19, 2013
    Publication date: October 31, 2013
    Inventors: Paul Douglas Corl, David Miller
  • Patent number: 8564392
    Abstract: An ignition coil includes a central core, a primary winding, a spool, a secondary winding, and a case outward of the core, spool, primary winding, and secondary winding. The secondary winding is wound on the spool and includes a high voltage end. The ignition coil also includes a cup formed of a metal material in electrical communication with the high voltage end of the secondary winding and is configured to be contacted by a conductive connector that is suitable for connection to a spark plug. The cup includes a generally cylindrical first sidewall press fit with the case and defining a press fit area at the interface of the first sidewall and the case, a generally cylindrical second sidewall spaced radially from the first sidewall, and an annular space defined between the press fit area and the second sidewall.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: October 22, 2013
    Assignee: Delphi Technologies, Inc.
    Inventors: Albert A. Skinner, Harry O. Levers
  • Patent number: 8508323
    Abstract: A transformer has primary coils and secondary coils that are arranged in a laminated manner in a direction of a winding axis and are mutually insulated. The secondary coils are composed of conducting plates in a plurality of layers arranged in the laminated manner in the direction of the winding axis, and the conducting plates are electrically connected in series. Connecting portions between the each conducting plates are arranged in an inner space of the primary coils.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: August 13, 2013
    Assignee: Denso Corporation
    Inventors: Masamichi Ishikawa, Shinjiro Yasui
  • Patent number: 8437695
    Abstract: An inductive signal interface comprises a coil assembly including one or more inductive coils, a bridge circuit including a plurality of switches, and control circuitry. The control circuitry is configured to individually operate the plurality of switches to enable the inductive signal interface to dynamically switch between a power-transmit mode and a power receive mode.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: May 7, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Manjirnath Chatterjee, Michael Lehr, Dyke Shaffer
  • Patent number: 8405480
    Abstract: An electrical assembly is provided. The electrical assembly includes a ring having at least two annular segments. Each annular segment includes a first portion and a second portion. The second portion tapers from the first portion toward an end of the second portion to define a circumferential cross-sectional area of the ring that is substantially constant along a radius of the electrical assembly. At least one winding is coupled about the ring.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: March 26, 2013
    Assignee: General Electric Company
    Inventors: Alexander Felix Fiseni, Jan Hemmelmann, Stefan Brandhoff
  • Patent number: 8400245
    Abstract: Magnetic components including pre-formed clips are described that are more amenable to production on a miniaturized scale. Discrete core pieces can be assembled with pre-formed coils and physically gapped from one another with more efficient manufacturing techniques.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 19, 2013
    Assignee: Cooper Technologies Company
    Inventors: Yipeng Yan, Robert James Bogert, Guo Ouyang, Zhigang Cheng
  • Patent number: 8378771
    Abstract: Described herein are rotary transformers for coupling signals between components that rotate relative to one another. In an exemplary embodiment, a rotary transformer comprises a rotary shaft, a first magnetic core on the rotary shaft, and a first winding wound around the first magnetic core. The rotary transformer further comprises a hollow second magnetic core, and a second winding wound along the inner wall of the second magnetic core. During operation, the first winding on the rotary shaft rotates within the second winding with the magnetic cores magnetically coupling signals between the two windings. Also, the first and second windings are closely spaced to provide capacitive coupling between the windings that extends the frequency response of the transformer. In one embodiment, the windings comprises substantially flat conductors wound in the shape of the windings. In another embodiment, each of the windings comprises circular loops connected by jogs.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 19, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Donald Masters, Stuart L. Carp, Peter Thornton
  • Patent number: 8350654
    Abstract: A Tran-Energy Machine is an energy conversion device to regain electric energy supplied to activated coils, from the total magnetic flux in the activated coils, and the rising and falling of magnetic flux lines of movable permanent magnets. The device may include one or more timing switches, electronic components in electric circuits, magnetic cores, permanent magnets, rotary parts, inductive coils, activation windings, rectifiers, and output switches. The one or more permanent magnets may be movably arranged with respect to the magnetic core for inducing alternating magnetic field upon movement, wherein activating and deactivating the windings attracts and repels the movable magnets generating regained energy from kinetic movement and changes in magnetic flux.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 8, 2013
    Inventor: Cong Toan Tran
  • Patent number: 8350656
    Abstract: A rotary transformer includes a primary core having a primary coil wound thereon, and a secondary core having a secondary coil wound thereon, the cores being mounted for relative rotation about an axis of rotation. The transformer is characterized in that one of the cores includes a plurality of core segments arranged in spaced-apart relation relative to one another in a substantially circular array about the axis, and the other core has a substantially annular configuration. In a particular embodiment, the primary core is fixed and hence remains static during operation, and includes a plurality of spaced apart core segments arranged in a circular array around the axis.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: January 8, 2013
    Assignee: Rolls-Royce PLC
    Inventors: John J A Cullen, Ellis F H Chong, Felix L Langley
  • Patent number: 8350655
    Abstract: Axisymmetric solid of revolution derivable from section at FIG. 5 is generally toroidal with electric current(s) in windings 110, 160 preferably flowing circumferentially along major circle(s) during power coupling device operation. Current(s) in windings 110, 160; current(s) in half-shields 120, 170; and the volume of space swept out by shield airgap(s) 101 emerge from plane of paper perpendicularly at FIG. 5 but as these emerge therefrom they curve to follow toroidal major circle(s). Cores 115, 165 preferably shunt and align magnetic flux such that magnetic field lines escape therefrom primarily only in region(s) of core airgap(s) and such that magnetic flux loops lie in planes of toroidal minor circle(s).
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: January 8, 2013
    Assignee: Analogic Corporation
    Inventor: John M. Dobbs
  • Patent number: 8188401
    Abstract: A wire electric discharge machining apparatus includes guide rollers and a single electrode wire that is wrapped around each of the guide rollers to form cut wire portions that are spaced from one another between pairs of the guide rollers. A processing power supply feeds electric power to the individual cut wire portions through a power feed element. A high frequency insulator includes wound coils of the electrode wire that are located between adjacent cut wire portions, and cores which close respective magnetic circuits of the individual coils. The magnetic circuits are magnetically insulated from one another. The power feed element is arranged between the individual cut wire portions and the individual coils, and the individual cut wire portions are insulated from one another at high frequencies by the individual coils. Voltages are impressed on the individual cut wire portions independently, so discharges can be generated simultaneously, in parallel.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: May 29, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventor: Tatsushi Sato
  • Publication number: 20110254648
    Abstract: A movable transformer embedded into an opening of a PCB includes a first bobbin unit, a second bobbin unit, a third bobbin unit, a winding unit and a magnetic unit. The second bobbin unit is electrically connected to the PCB. The third bobbin unit is electrically connected to the PCB. The winding unit is disposed around the first bobbin unit, the second bobbin unit and the third bobbin unit. The magnetic unit passes through the first bobbin unit and disposed outside the first bobbin unit. In addition, one side of the first bobbin unit is slidably mated with the second bobbin unit, another side of the first bobbin unit is slidably mated with the third bobbin unit, so that the first bobbin unit is selectively moved from one position above the opening to another position in the opening.
    Type: Application
    Filed: April 15, 2010
    Publication date: October 20, 2011
    Inventors: CHUN-KONG CHAN, Kuo-Jen Hsieh
  • Patent number: 7969266
    Abstract: Provided is an inductor capable of adjusting an inductance in dozens of nH increments without requiring a large number of components. The inductor includes: a conductor; a first core body and a second core body each having an opposed surface, the opposed surface of the first core body and the opposed surface of the second core body facing each other so as to enclose the conductor; and a holding part provided with a slide surface for varying an opposed area of the opposed surfaces of the first core body and the second core body, for holding at least one of the first core body and the second core body at a desired position.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: June 28, 2011
    Assignee: Sumida Corporation
    Inventors: Kan Sano, Yuichiro Urano
  • Patent number: 7924130
    Abstract: An isolation magnetic device produced by inserting a first end of a wire through a first hole of a core, wrapping the first end of the wire around a first side of the core and inserting the first end of the wire through a second hole of the core. The second hole of the core is spaced from the first hole and has a longitudinal axis extending parallel to a longitudinal axis of the first hole. The device is further produced by inserting a second end of the wire through the second hole of the core, wrapping the second end of the wire around the first side of the core and inserting the second end of the wire through the first hole of the core.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: April 12, 2011
    Inventors: Brian J. Buckmeier, John Hess, Joseph Berry, Edwin Edralin
  • Patent number: 7924134
    Abstract: A vehicular power converter includes switches and first and second inductive components. The first and second inductive components have substantially adjacent portions and are coupled to the plurality of switches such that when current flows from the plurality of switches and through the first and second inductive components, flux generated by the current flowing through the adjacent portions of the first and second inductive components and located between the adjacent portions is oriented in substantially opposite directions.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: April 12, 2011
    Assignee: GM Global Technology Operations LLC
    Inventor: Keming Chen
  • Publication number: 20110057758
    Abstract: Wire-holders are provided that confine a single wire over a limited arc section and that are interspersed with ferrite ingots that provide wire-ways for several wires are utilized in the winding of the coils of a transformer. A method for consistently producing windings having accurate wire placement on rotors, stators, and other electrical componentry is also provided.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 10, 2011
    Inventors: Gregory M. Dunlap, Kai Chi Chan
  • Publication number: 20100321141
    Abstract: A transformer includes a core unit that includes an elongated first core part extending in a longitudinal direction and having first and second segments, and an E-shaped second core part including a connecting segment that extends in the longitudinal direction, and three extension segments that extend from the connecting segment in a transverse direction. A central one of the extension segments is disposed in contact with the second segment. The second segment has a size in the transverse direction that gradually decreases along the longitudinal direction away from the first segment. The first core part is movable relative to the second core part from a tunable position to an assembled position for adjusting a position of the second segment relative to the central one of the extension segments so as to vary a size of an effective magnetic flux region defined between the first and second core parts.
    Type: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Inventors: Hong-Fei Chen, Ting-Cheng Lai, Shu-Bin Wang
  • Patent number: 7839255
    Abstract: A composite transformer, having first and second inductors and a transformer, includes a transformer core that has a core leg around which portions of first and second windings are wound, and a base fixing the core leg, a first inductor core that has a core leg around which a portion of the first winding is wound and a base fixing the core leg, and a second inductor core that has a core leg around which a portion of the second winding is wound and a base fixing the core leg. The first and second windings are wound in a manner that flux are cancelled with each other, and are wound around the core leg of the transformer core in a manner alternately overlapping with each other, and are wound around respective core legs of the first and second inductor cores so as to be apart from each other to suppress any interference of magnetic fluxes.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: November 23, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masao Nagano, Mitsuaki Hirakawa
  • Patent number: 7839249
    Abstract: The present invention provides a splitter including a seat, a first inner core, a second inner core, a first coil, an outer core and a second coil. The seat has a bobbin, and the first coil is wound on the bobbin. The first inner core and the second inner core, disposed on the bobbin, are assembled with each other to cover the bobbin. The outer core and the first inner core are assembled with each other. The second coil is disposed between the outer core and the first inner core.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: November 23, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Hung-Chieh Tseng, Ying-Chian Kang, Tsung-Hsien Lee, Shu-Hui Chen, Hua-Sheng Shih
  • Patent number: 7808355
    Abstract: Combined type transformer includes: a transformer core; first and second coils provided with respect to the transformer core; first and second inductor cores provided around the first coil; and third and fourth inductor cores provided around the second coil. The transformer core and the first and second coils constitute a transformer, the first coil and the first and second inductor cores constitute a first inductor, and the second coil and the third and fourth inductor cores constitute a second inductor.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: October 5, 2010
    Assignees: Honda Motor Co., Ltd.
    Inventors: Masao Nagano, Mitsuaki Hirakawa, Toshihisa Shimizu
  • Patent number: 7786833
    Abstract: An edgewise coil which includes a non-circular cross-sectional shaped conductor having a cross-sectional shape defined by a pair of first and second long sides and a pair of first and second short sides, the shaped conductor wire being laminated while being bended with using the first short side as a bending fulcrum so as to form a plurality of laminated wire layers having a rectangular shape in a plan view, wherein the pair of long sides include, in a longitudinal cross section in a pre-bending-process state before the shaped conductor wire is bended, a pair of straight-line regions extending from both ends of the second sides so as to be parallel to each other and a pair of tapered regions extending between the straight-line regions and the first short side, and the pair of tapered regions, in a longitudinal cross section in the pre-bending-process state, come closer to each other as they approach the first short side.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: August 31, 2010
    Assignee: Suncall Corporation
    Inventor: Takao Murakami
  • Patent number: 7760060
    Abstract: In a vehicle transformer including a core 1, a winding 2, a rectangular tank 3 holding them, a cooling unit 7 for cooling a cooling medium 6 filling the tank 3, and a circulating pump 8 for forcibly circulating the cooling medium 6, a partition member 9 is provided for dividing an interior of the tank 3 into two and the partition member 9 divides a channel of the cooling medium 6 flowing within the winding 2 into a first cooling medium channel 10 and a second cooling medium channel 11, and both of the cooling medium channels 10, 11 are communicated at one end side of the tank 3 and the cooling unit 7 connected to both of the cooling medium channels 10, 11 is provided at the other end for the cooling medium 6 to flow and circulate in the first cooling medium channel 10 and the second cooling medium channel 11. Thereby, the connection between the tank and the cooling unit is simplified and a vehicle transformer reduced in size and weight is obtained.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: July 20, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Kiuchi, Yutaka Koba
  • Patent number: 7755463
    Abstract: The claimed invention relates to arrangements of inductors and integrated circuit dice. One embodiment pertains to an integrated circuit die that has an inductor formed thereon. The inductor includes an inductor winding having a winding input and a winding output. The inductor also comprises an inductor core array having at least first and second sets of inductor core elements that are magnetically coupled with the inductor winding. Each inductor core element in the first set of inductor core elements is formed from a first metallic material. Each inductor core element in the second set of inductor core elements is formed from a second metallic material that has a different magnetic coercivity than the first magnetic material. The inductor further comprises a set of spacers that electrically isolate the inductor core elements. Some embodiments involve multiple inductor windings and/or multiple inductor core elements that magnetically interact in various ways.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: July 13, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Peter J. Hopper, Peter Johnson, Peter Smeys, Andrei Papou
  • Patent number: 7724115
    Abstract: The present invention relates to a circuit carrier and transformer assembly. The circuit carrier and transformer assembly includes a circuit carrier and a transformer. The transformer includes a bobbin with multiple bobbin bases. The circuit carrier includes multiple receiving holes corresponding to respective bobbin bases of the bobbin. The bobbin bases are received in respective bobbin bases when the transformer is mounted on the circuit carrier.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: May 25, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Yi-Lin Chen, Hsin-Wei Tsai, Chia-Ching Lee, Shih-Yun Chen
  • Patent number: 7714687
    Abstract: In a transformer including a coil part having a first bobbin to which a coil is mounted, a second bobbin to be fitted to the first bobbin combined to each other, the coil part being sandwiched between magnetic cores from above and below, the first bobbin includes at least one lead drawing through holes on a periphery on the inner peripheral side of a coil mounting surface, and at least one of coil-drawn-leads of the coil is drawn through the lead drawing through hole. With this transformer, coming out of the coil-drawn-lead, displacement, and erroneous wiring are prevented, and hence the inserting capability of the coil is improved. Therefore, the workability is remarkably improved, and hence a product which is low in price can be provided.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: May 11, 2010
    Assignee: Panasonic Corporation
    Inventors: Tomio Marui, Koji Nakashima, Toshiyuki Nakata
  • Patent number: 7710228
    Abstract: An electrical inductor assembly comprises an inductor core having a circular shape, a wire guide that surrounds the inductor core and includes a plurality of slots, at least one of the slots forming a path winding around the inductor core, and at least one wire placed in one of the plurality of slots to form a winding. A method of forming an electrical inductor assembly comprises forming an inductor core having a circular shape, surrounding the inductor core with a wire guide, winding at least one wire around the inductor core along a slot in the wire guide, and applying an insulating material to the slot containing the at least one wire to electrically insulate the at least one wire.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: May 4, 2010
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Frank Z. Feng, Dwight D. Schmitt, Steven Schwitters, Clifford G. Thiel, Debabrata Pal, John Huss, John Horowy, Joseph Sukkar, Dirk Derr, Mark Hamilton Severson
  • Patent number: 7705703
    Abstract: A signal distribution inductor is suitable to be adsorbed by a surface mounting technology (SMT) apparatus. The signal distribution inductor includes a base, a separated iron-core, and a plurality of induction coils. The separated iron-core includes a first induced body and a second induced body, wherein the first induced body and the second induced body are provided at the base. The first induced body and the second induced body are joined together to form a joining surface through which the signal distribution inductor is adsorbed by the SMT apparatus. In addition, the first induced body has a first through hole, and the second induced body has a second through hole. The induction coils are wound on the first induced body, the second induced body and the base through the first through hole, the second through hole.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 27, 2010
    Assignee: Unihan Corporation
    Inventor: Wei-Chun Tsao
  • Patent number: 7701316
    Abstract: An integrated magnetic device disposed on a system circuit board is disclosed. The integrated magnetic device comprises a first magnetic device and a second magnetic device. The first magnetic device comprises a primary winding having at least a terminal; a secondary winding disposed corresponding to the primary winding, a magnetic core assembly assembled with the primary and secondary windings and partially covered by the primary and secondary windings, and a receiving chamber. The second magnetic device has a central through hole and a plurality of conductive ends. The second magnetic device is received in the receiving chamber of the first magnetic device and electrically connected to the system circuit board via the conductive ends, and the terminal of the primary winding of the first magnetic device pierces through the central through hole of the second magnetic device and electrically connects to the system circuit board.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: April 20, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Ching-Hsien Teng, Kao-Tsai Liao
  • Patent number: 7701315
    Abstract: A device for contactless transfer of energy and data. One embodiment includes a primary coil assembly on a first support and a secondary coil assembly on a second support, the supports rotatable in relation to one another, the primary and secondary coil assemblies having an energy coil for inductive transfer of electric energy. To minimize interference in data transfer, the primary and secondary coil assemblies may include at least one data coil for inductive data transfer wherein at least one winding of the data coil surrounds at least one winding of the energy coil so that a first section of the data winding is wound in the wound direction of the energy coil and a second section of the data winding is wound in a direction opposite the wound direction of the energy coil.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: April 20, 2010
    Assignees: Siemens Aktiengesellschaft, Institut fur Automation und Kommunikation e.V.
    Inventors: Rudolf Mecke, Christian Rathge
  • Patent number: 7696851
    Abstract: A bobbin includes a first winding frame to wrap primary winding coils thereon, a first winding chassis defining a first opening to receiving the first winding frame therein, a pair of second winding chassis positioned at two opposite ends of the bobbin and each defining a second opening, a pair of second winding frames received in the second openings of the second winding chassis to wrap secondary winding coils thereon, and a receiving hole extending through the second winding chassis and the first winding frame. The first winding frame is positioned between the second winding chassis. Each of the second winding frames defines a through hole communicating with the receiving hole. The first opening of the first winding chassis faces to a first direction, and each of the second openings of the second winding chassis faces to a second direction different from the first direction.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: April 13, 2010
    Assignee: Ampower Technology Co., Ltd.
    Inventors: Chih-Chan Ger, Chia-Kun Chen
  • Patent number: 7679482
    Abstract: An inductor includes a first magnetic substance core which has a middle leg, a first outer leg, a second outer leg, and a body portion interconnecting the middle leg, the first outer leg and the second outer leg, and a second magnetic substance core which is arranged to be opposed to the first magnetic substance core. A first conductor is arranged in a first space which is formed by the middle leg, the first outer leg, part of the body portion, and the second magnetic substance core. A second conductor is arranged in a second space which is formed by the middle leg, the second outer leg, part of the body portion, and the second magnetic substance core. The middle leg is formed with a region which is lower in height than the first outer leg, in the same direction as the longitudinal direction of the first outer leg.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: March 16, 2010
    Assignee: NEC Tokin Corporation
    Inventors: Seiichi Yamada, Okikuni Takahata, Hiroyuki Kamata, Fumishirou Tsuda, Masahiro Kondo
  • Patent number: 7671713
    Abstract: An integrated structure of passive elements in an LLC resonance converter realized by flexible circuit boards includes a closed magnetic circuit formed by first and second magnetic cores, a tubular, double-sided, flexible circuit board, tubular magnetic-material layer and tubular, single-sided, flexible circuit board. The single-sided circuit board is coaxially sleeved in turn from inside outwards on a magnetic core column of the closed magnetic circuit. The tubular, double-sided, circuit board is a laminated plate material formed in turn of a first insulating layer, first copper foil, insulating medium layer, second copper foil and second insulating layer. The tubular, single-sided, circuit board is a laminated plate material formed in turn of a third insulating layer, third copper foil and fourth insulating layer. The integration of a resonance capacitor, resonance inductor, shunt inductor and transformer in a LLC resonance converter is realized by using these flexible circuit boards.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: March 2, 2010
    Assignees: Zhe Jiang University, Fuji Electric Systems Co., Ltd.
    Inventors: Dehong Xu, Yanjun Zhang, Yi Chen, Kazuaki Mino
  • Patent number: 7667563
    Abstract: The present invention relates in general to the field of interface technology. Electronic components, such as modular converters for measurement control and regulation technology, in particular isolation amplifiers, are known from interface technology. Such isolation amplifiers can be used for galvanic separation, conversion, amplification and filtering of standard, normal signals and for matching analog signals. These isolation amplifiers are galvanically separated from one another in the input, output and supply circuits. According to the invention, a separate component of a transformer is integrated for separation into a circuit board of an isolation amplifier with the aid of SMD mounting technology, wherein the transformer contains a combination of inductive components, consisting of a magnetic core and a winding, and a substrate which contains internal printed conductors that form planar short-circuit windings.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: February 23, 2010
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventor: Joerg Blanke
  • Patent number: 7646279
    Abstract: Apparatus for supplying energy to a load, comprises a power supply unit (102) e.g. a switched mode electronic transformer or electronic ballast having an input for receiving current at mains frequency and a means for stepping-up said mains frequency to a higher frequency e.g. 30-50 kHz and an output for delivering energy at the higher frequency. A two part connector (108) has a first core portion (106) that has a primary winding (104) connected to the output of the power supply unit and a mating second core portion (112) that has a secondary winding (110) for delivery of energy to a load (114), the core portions being of a high resistivity material, e.g. a ferrite having a resistivity of at least 104 ?cm. The apparatus may be used to power e.g. low voltage halogen or other incandescent lighting, fluorescent lighting, or an electric motor, a power supply for a computer, radio, television or like electronic device, a heater or the like.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: January 12, 2010
    Inventors: George A. Limpkin, Simon G. Rozenberg
  • Patent number: 7646277
    Abstract: An ignition coil includes a coil part having primary and secondary coils, a center core, and a peripheral core, a connector case part, a seal rubber, and a ventilation passage. The coil part is inserted in a plug hole of an engine, and the case part is outside the plug hole. An axial end of the peripheral core is inserted in an insertion hole of the case part. The peripheral core and an inner wall surface of the insertion hole define a ventilation clearance therebetween. A gap between the case part and the plug hole is sealed with the rubber. The rubber is closely-attached to the plug hole and the case part along its whole circumference. The passage, through which the plug hole is ventilated, includes the clearance and a ventilation hole formed at a certain position of the case part away from the rubber to communicate with the clearance.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: January 12, 2010
    Assignee: Denso Corporation
    Inventors: Kouji Tsunenaga, Kiyotoshi Nakamoto