Preformed Insulation Between Coil And Core (e.g., Spool) Patents (Class 336/198)
  • Patent number: 10998115
    Abstract: An inductor includes a support member, a plurality of conductor patterns disposed on at least one surface of the support member and supported by the support member, and an insulating structure interposed between conductor patterns adjacent each other among the plurality of conductor patterns, the insulating structure including a first insulating layer and a second insulating layer disposed on the first insulating layer, the second insulating layer covering side and upper surfaces of the conductor patterns, the second insulating layer being continuously formed along the side and upper surfaces of the conductor pattern, depending on external shapes of the side and upper surfaces of the conductor pattern disposed below the second insulating layer.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Woon Chul Choi
  • Patent number: 10971290
    Abstract: A magnetic assembly includes plural first magnetic cores, plural coil windings and a second magnetic core. Each of the plural first magnetic cores includes plural legs and a first connection part. The first connection part is connected with first terminals of the plural legs. The first connection part of the first magnetic core at an upper position is located adjacent to second terminals of the plural legs of the adjacent first magnetic core at a lower position. Each coil winding is wound around at least one leg of the plural legs of the corresponding first magnetic core so as to form a magnetic element of the corresponding converter. The second magnetic core is stacked over the plural first magnetic cores. The second magnetic core is located adjacent to the second terminals of the legs of the topmost first magnetic core.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: April 6, 2021
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Zengyi Lu, Yajiang Yan, Haijun Yang, Jun Sun
  • Patent number: 10918166
    Abstract: An inductor includes a coil having a plurality of coil patterns and external electrodes connected thereto. An innermost coil pattern and an outermost coil pattern in the coil grow using first and second insulating wall as growth guides and the inductor has a structure in which there is no deviation in thickness and shape between the coil patterns.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: February 16, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Woon Chul Choi
  • Patent number: 10910139
    Abstract: A common mode choke assembly includes a main core, a shunt core, and first and second two-piece bobbins. The main core has a generally rectangular main core body, and first and second core riser portions. The first and second core riser portions are connected to opposite ends of the main core body. The first core riser portion includes a first riser notch and the second core riser portion includes a second riser notch aligned with the first riser notch. The shunt core spans between and is positioned within the first and second riser notches. The first and second two-piece bobbins are positioned on opposite sides of the main core body adjacent to the first and second core riser portions. Each two-piece bobbin includes at least first and second end flanges, a passageway, and a mating surface. The assembly further includes a mounting header for receiving the main and shunt core.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: February 2, 2021
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, Mike LeBlanc
  • Patent number: 10777348
    Abstract: A winding layer pitch compensation for an air-core reactor which has at least two radially spaced apart concentric winding layers, includes a first set of strip-shaped star sheets, each of which is configured to be arranged radially below or above the winding layers and which are provided with at least one receiving slot along an edge extending from that edge, a second set of strip-shaped compensation sheets, each of which is provided with at least one insert slot along an extending from another edge, where a compensation sheet can be inserted into each receiving slot of a star sheet in a formfitting manner, where the star sheet engages into the insert slot of the compensation sheet in a formfitting manner, and where the slot depths of at least two receiving slots of the set of star sheets are different.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: September 15, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventor: Otto Haslehner
  • Patent number: 10763034
    Abstract: An arrangement of coaxial windings is provided. The arrangement includes primary and secondary windings as air-core pulse transformers having insulation and winding arrangement for efficient energy transfer to the secondary winding. The secondary winding is wound with a central metallic core to include a coaxial transmission line with it and is configured to deliver a rectangular pulse across its terminals. The arrangement also includes a coaxial feeding arrangement for the primary winding with a central coaxial terminal connecting to one end of an adjustable primary closing switch electrode so as to have variable voltage feed input corresponding to its load requirement.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: September 1, 2020
    Assignee: Secretary, Department of Atomic Energy
    Inventor: Kumar Rajawat Rajendra
  • Patent number: 10685777
    Abstract: A three-phase AC reactor according to an embodiment of the present invention includes an input and output terminal block; a peripheral iron core disposed under the input and output terminal block; and at least three iron-core coils each constituted of an iron core and a coil wound around the iron core, so as to contact an inner surface of the peripheral iron core or so as to be coupled to the inner surface. The at least three iron-core coils form gaps that can be magnetically coupled between two of the iron-core coils adjoining each other. The three-phase AC reactor includes a phase-based coil extending member unit that extends from coil end portions of the coils as base points to connection points of the input and output terminal block.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 16, 2020
    Assignee: FANUC CORPORATION
    Inventors: Kenichi Tsukada, Kaname Matsumoto, Makoto Takeshita, Yuuichi Yamada, Masatomo Shirouzu
  • Patent number: 10636554
    Abstract: An inductor includes a support member, a plurality of conductor patterns disposed on at least one surface of the support member and supported by the support member, and an insulating structure interposed between conductor patterns adjacent each other among the plurality of conductor patterns, the insulating structure including a first insulating layer and a second insulating layer disposed on the first insulating layer, the second insulating layer covering side and upper surfaces of the conductor patterns, the second insulating layer being continuously formed along the side and upper surfaces of the conductor pattern, depending on external shapes of the side and upper surfaces of the conductor pattern disposed below the second insulating layer.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: April 28, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Woon Chul Choi
  • Patent number: 10600546
    Abstract: An inductor includes a coil having a plurality of coil patterns and external electrodes connected thereto. An innermost coil pattern and an outermost coil pattern in the coil grow using first and second insulating wall as growth guides and the inductor has a structure in which there is no deviation in thickness and shape between the coil patterns.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: March 24, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Woon Chul Choi
  • Patent number: 10586644
    Abstract: An operator is prevented from touching terminals and the like. A reactor includes an outer peripheral iron core, and at least three core coils disposed inside the outer peripheral iron core. Each of the core coils includes a core and a coil wound onto the core. The reactor further includes a terminal base that has a plurality of terminals connected to leads extending from the coils and is disposed on one end of the outer peripheral iron core, and an electric shock prevention cover for covering the terminals of the terminal base.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: March 10, 2020
    Assignee: FANUC CORPORATION
    Inventors: Kenichi Tsukada, Masatomo Shirouzu
  • Patent number: 10573458
    Abstract: Provided is a low-weight, high-efficiency inductor design for use with or in electrical power equipment, such as inverters. A toroidal power inductor includes a support structure comprising an outer shell, an inner shell, and one or more coolant channels formed therebetween, a plurality of conductors wrapped around and supported by an exterior surface of the outer shell, and an interior cavity substantially enclosed by the inner shell of the toroidal support structure. The plurality of conductors are configured to provide an inductance for the toroidal power inductor, and the one or more coolant channels are distributed beneath the exterior surface of the outer shell to cool the plurality of conductors. An air-core power inductor may implement the conductors using high-temperature superconducting (HTS) tapes cooled by cryogenic fluid flowing within the coolant channels.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: February 25, 2020
    Assignee: THE BOEING COMPANY
    Inventors: John R. Hull, Vyacheslav Khozikov, Shengyi Liu, Eugene V. Solodovnik, John Dalton Williams
  • Patent number: 10504642
    Abstract: A filter component assembly kit includes a bobbin that is configured with first and second members and a core that is in a quadrangular frame shape. When the first member is assembled with the second member, a through hole is formed in the bobbin. The through hole extends in a first direction. The core is configured with first and second extension bars. The first and second extension bars extend in parallel in the first direction. When the first extension bar is disposed in the through hole of the bobbin, rotation of the core around the first extension bar is prevented. First allowance of the first extension bar in a second direction, which is perpendicular to the first direction, in the through hole is larger than second allowance of the first extension bar in a third direction, which is perpendicular to the first and second directions, in the through hole.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: December 10, 2019
    Assignee: SUMIDA CORPORATION
    Inventors: Naoki Sasaki, Jiayu Chen
  • Patent number: 10483033
    Abstract: An electromagnetic device includes an outer peripheral iron core, and at least three iron core coils which are in contact with or coupled to the inner surface of the outer peripheral iron core. The at least three iron core coils each include an iron core, and at least one of a primary coil and a secondary coil, which are wound around the iron core. The at least three iron core coils are arranged in a circle, and the iron core of one of the at least three iron core coils is in contact with the iron cores of the other iron core coils adjacent to the one iron core coil.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: November 19, 2019
    Assignee: FANUC CORPORATION
    Inventors: Masatomo Shirouzu, Kenichi Tsukada
  • Patent number: 10276288
    Abstract: A coupled inductor includes a ladder magnetic core including two opposing rails extending in a lengthwise direction and joined by a plurality of rungs. The coupled inductor further includes a respective winding wound around each of the plurality of rungs. The plurality of rungs are divided into at least two groups of rungs, and a lengthwise separation distance between adjacent rungs in each group of rungs is less than a lengthwise separation distance between adjacent rungs of different groups of rungs.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: April 30, 2019
    Assignee: Volterra Semiconductor LLC
    Inventor: Alexandr Ikriannikov
  • Patent number: 10177610
    Abstract: A stator includes a stator core, an insulating body, a coil, and a resin-molded product. The stator core includes a circumferentially side surface and an axially upper surface. The insulating body includes a side wall and an upper wall. The side wall covers the circumferentially side surface of the stator core. The upper wall covers the axially upper surface of the stator core. A radially inner side end surface of the upper wall is positioned farther toward a radially outer side than a radially inner side end surface of the side wall. The resin-molded product covers the coil.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: January 8, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kentaro Haruno, Tomohiko Miyamoto, Tatsuo Nagashima
  • Patent number: 10090099
    Abstract: An ignition transformer for use with a spark ignition system for an internal combustion engine includes a central core, a primary coil, a secondary coil, and a magnetic return. The central core defines a first end and a second end. The primary coil is used to vary magnetic energy into the central core in response to a primary current applied to the primary coil. The secondary coil is used to generate a secondary voltage in response to changes in the magnetic energy in the central core. The magnetic return defines a return-path to couple magnetic energy from the first end to the second end. A permeability value of the return-path is selected so the transformer has a secondary-current versus time-response characteristic that decays to fifty-percent (50%) of an initial secondary current when ten percent (10%) to twenty-five percent (25%) of a burn-time interval has passed.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: October 2, 2018
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Albert A. Skinner, Harry O. Levers, Jr.
  • Patent number: 10090097
    Abstract: A high voltage transformer (50) includes a magnetic core (5); a low voltage winding (10); a high voltage winding (20); at least one inner sleeve (30); and a coil bobbin (24) for carrying the high voltage winding (20). The coil bobbin (24) is configured to be arranged inside the at least one inner sleeve (30) and configured to be attached to the at least one inner sleeve (30) at an outer perimeter of the at least one inner sleeve (30). The coil bobbin (24) includes at least one field-control electrode (22), which is adapted to shape an electric field generated by the high voltage winding (20).
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 2, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Bernd Ackermann, Wolfgang Efftinge, Albert Garcia Tormo, Christian Hattrup, Ralf Kröger, Thomas Scheel, Peter Lürkens, Antonius Johannes Joseph Wismans
  • Patent number: 9987777
    Abstract: The present invention discloses a power inductor encapsulated through injection molding. The power inductor comprises a coil winding, a soft magnetic ferrite middle column inserted in a middle of the coil winding, and a magnetic powder glue for encapsulating the coil winding and the soft magnetic ferrite middle column through injection molding. The power inductor is square and meets L?W and 2rc>0.4×2W, wherein a section width of the soft magnetic ferrite middle column perpendicular to a height direction of the inductor is 2rc, a length of the power inductor is 2L, and a width of the power inductor is 2W. According to the present invention, a balanced direct-current resistance and a direct-current superposition saturation characteristic can be obtained, and the direct-current resistance is greatly decreased while an excellent direct-current superposition saturation characteristic is ensured.
    Type: Grant
    Filed: September 16, 2017
    Date of Patent: June 5, 2018
    Inventor: Zhi Huang
  • Patent number: 9991045
    Abstract: A magnetic assembly includes a bobbin having at least first and second end flanges. The bobbin includes a channel wall displaced from the first end flange to from a channel therebetween. The channel receives and frictionally engages an I-core to retain the I-core in the channel. The bobbin includes a passageway that receives a middle leg of an E-core. The passageway includes a plurality of longitudinal ribs that extend from the first end flange toward the second end flange. The ribs are tapered with respect to the inner wall of the passageway. The middle leg of the E-core crushes the ribs. The frictional engagement of the crushed ribs with the middle leg retains the middle leg in the passageway. No taping, gluing or other additional step is required to assemble the bobbin and the two cores.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: June 5, 2018
    Assignee: UNIVERSAL LIGHTING TECHNOLOGIES, INC.
    Inventors: Donald Folker, Mike LeBlanc
  • Patent number: 9978496
    Abstract: A magnetic device for an electronic circuit includes a printed circuit board. A first and second magnetic component assembly can be electrically connected to the printed circuit. The second magnetic component assembly can be stacked on the first magnetic component assembly. The first magnetic component assembly can be positioned between the second magnetic component assembly and the printed circuit board. Each magnetic component assembly can include a bobbin, a winding disposed on the bobbin, and a core extending through the bobbin. A second bobbin on the second magnetic component can be positioned on either a first core or a first bobbin of the first magnetic component assembly. The stacked magnetic component configuration can help reduce the board space required to electrically connect both the first and second magnetic component assemblies to the printed circuit board, which can help increase the power density of the magnetic device.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 22, 2018
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, John J. Dernovsek, Mike LeBlanc
  • Patent number: 9899144
    Abstract: A resonant high current density transformer including two cores that are abut against each other with their first and second side posts on two sides thereof. A first bobbin envelops the first side posts on the same side of the two cores. A side plate is provided on either end of the first bobbin. The space between the two side plates is divided into two coil slots with a spacer, and at least a wire is wound in each coil slot to form a primary winding. A further second bobbin envelops the second side posts on the same side of the two cores. The outer periphery of the second bobbin is divided into two winding regions by another spacer, and a metal plate envelops each of the winding regions to form a secondary winding. A bobbin mount is disposed at the external flank of the second bobbin with a barrier plate at a side thereof for separating the first and the second bobbins.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: February 20, 2018
    Inventor: Sen-Tai Yang
  • Patent number: 9796165
    Abstract: An ignition coil for delivering a spark-generating current to a spark plug includes a magnetically-permeable core; a primary winding disposed outward of the core; and a secondary winding disposed outward of the primary winding and inductively coupled to the primary winding. The secondary winding terminates at one end thereof in a low-voltage end and terminates at another end thereof in a high-voltage end. At least one of the low-voltage end of the secondary winding and the high-voltage end of the secondary winding is electrically connected directly to a terminal through an electrically conductive polymer.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: October 24, 2017
    Assignee: DELPHI TECHNOLOGIES, INC.
    Inventors: Albert A. Skinner, Harry O. Levers, Jr., Mary A. Skinner, Marco Meza
  • Patent number: 9793044
    Abstract: A coil device includes a bobbin, a first winding part, and a second winding part. A partition portion is formed on an outer peripheral surface of the bobbin. The first winding part is wound around the outer peripheral surface at one side of the partition portion. The second winding part is wound around the outer peripheral surface at the other side of the partition portion and has an inner winding layer and an outer winding layer located farther to the outer peripheral surface at the other side than the inner winding layer.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: October 17, 2017
    Assignee: TDK Corporation
    Inventors: Masaaki Iwakura, Katsuhiro Ishigaki, Hiroshi Maeda, Satoshi Shinbo, Nobuo Kitajima
  • Patent number: 9793045
    Abstract: According to one embodiment, contactless power transfer transformer includes power transmission coil and power reception coil. At least one of the power transmission coil and the power reception coil is configured by coupled and both-sides wound coil. The coupled and both-sides wound coil is configured by both-sides wound coils. One of magnetic poles of one of the both-sides wound coils is connected to one of the magnetic poles of adjacent one of the both-sides wound coils. Directions of magnetic fluxes toward corresponding coil from each of the magnetic poles connected to each other are identical. The both-sides wound coils are selected so that leakage magnetic flux around moving body does not exceed predetermined value. Number of the both-sides wound coils is set so that value obtained by multiplying power transfer capacity of one of the both-sides wound coils by the number satisfies capacity of the transformer.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: October 17, 2017
    Assignee: TECHNOVA INC.
    Inventors: Shigeru Abe, Yasuyoshi Kaneko, Tomio Yasuda, Hiroyuki Kishi
  • Patent number: 9788430
    Abstract: A magnetic device for an electronic circuit includes a printed circuit board. A first and second magnetic component assembly can be electrically connected to the printed circuit. The second magnetic component assembly can be stacked on the first magnetic component assembly. The first magnetic component assembly can be positioned between the second magnetic component assembly and the printed circuit board. Each magnetic component assembly can include a bobbin, a winding disposed on the bobbin, and a core extending through the bobbin. A second bobbin on the second magnetic component can be positioned on either a first core or a first bobbin of the first magnetic component assembly. The stacked magnetic component configuration can help reduce the board space required to electrically connect both the first and second magnetic component assemblies to the printed circuit board, which can help increase the power density of the magnetic device.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 10, 2017
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, John J. Dernovsek, Mike LeBlanc
  • Patent number: 9754713
    Abstract: A choke includes a single-piece core made of a same material, the single-piece core having a first board, a second board, and a pillar located between the first and second boards, a winding space located among the first board, the second board and the pillar, wherein the pillar has a non-circular and non-rectangular cross section having a first axis and a second axis substantially perpendicularly intersecting with each other at a center of the cross section of the pillar, and wherein a circumference of the cross section of the pillar includes two arc edges, four first substantially straight edges substantially parallel to the first axis, and two second substantially straight edges substantially parallel to the second axis, each of the first substantially straight edges being a joint of and in direct contact with one of the arc edges and one of the second substantially straight edges.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: September 5, 2017
    Assignee: CYNTEC CO., LTD.
    Inventors: Tsung-Chan Wu, Roger Hsieh, Yi-Min Huang, Lan-Chin Hsieh, Yu-Ching Kuo, Chia-Hui Lai
  • Patent number: 9704629
    Abstract: A coupled inductor includes a ladder magnetic core including two opposing rails extending in a lengthwise direction and joined by a plurality of rungs. The coupled inductor further includes a respective winding wound around each of the plurality of rungs. The plurality of rungs are divided into at least two groups of rungs, and a lengthwise separation distance between adjacent rungs in each group of rungs is less than a lengthwise separation distance between adjacent rungs of different groups of rungs.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: July 11, 2017
    Assignee: Volterra Semiconductor LLC
    Inventor: Alexandr Ikriannikov
  • Patent number: 9511377
    Abstract: A high-gradient internal-circulating oil-cooled Magnetic Separator, includes magnetic system coils, an internal-circulating oil path system, an external-cooling system and an oil conservator. The magnetic system coils are used for generating excitation magnetic field to achieve the iron-absorption function, the magnetic paths of the magnetic system coils being an open magnetic path structure. The internal-circulating oil path system is used for allocation and collection circulation of transformer oil. The external-cooling system is used for heat dissipation of transformer oil to achieve internal heat dissipation balance. The oil conservator is used as a supplementary container for the transformer oil expansion during the apparatus's operation. An internal-circulating structure is employed, and external-circulating pipes are simplified, circulating resistance in oil paths being reduced, problems including complex interference in oil paths arrangement, low circulation efficiency, leakage at welding spots, etc.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: December 6, 2016
    Assignee: LONGI MAGNET Co., Ltd.
    Inventors: Chengchen Zhang, Chengwu Zhang, Nengping Zhao, Hongxu Li, Ylng Zhao, Shikuan Bi, Wenbo Yu
  • Patent number: 9438067
    Abstract: Provided is a wireless charging system having different wireless modes, the system comprising: a method of providing a coil having different charging modes in one set, which is performed by providing separate coils or providing a lead wire in the middle of one coil, when the coil having at least two different charging modes is provided in the one set in a receiver for the wireless charging system using non-contact magnetic induction, wherein when one charging mode is selected for one coil set, a status value of the coil for transmitting and receiving wireless power energy is detected, thereby enabling the one charging mode to be selected, and different charging modes is mounted in one wireless charging system so that a charging mode appropriate for optimum conditions can be selected according to states and charging conditions wireless power transmitting and receiving devices.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: September 6, 2016
    Assignee: KTHEPOWER INC.
    Inventors: Gi-Yong Na, Si-Han Kim
  • Patent number: 9401237
    Abstract: A bobbin apparatus for a magnetic component includes a core passage having one or more core passage steps located therein. The core passage steps provide one or more gaps between a core disposed in the core passage and the bobbin body. A potting material may be disposed in the gap or gaps in some applications to enhance heat transfer and/or to improve magnetic component performance by reducing effects of fringing flux on inner windings. A method of assembling a magnetic component to include one or more gaps between the core and bobbin core passage is also provided.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: July 26, 2016
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, Mike LeBlanc, James Neal Van Pelt
  • Patent number: 9368263
    Abstract: A magnet assembly, having a disk-shaped magnet, which is made predominantly of metal material and has a through-hole and, by the through-hole, can be placed onto a region of a shaft made of plastic by a press fit. In the region of the magnet placed onto the shaft, the shaft has a diameter that is smaller than the diameter of the through-hole. The shaft has a plurality of radially protruding projections in the region of the magnet placed onto the shaft. The projections are distributed evenly on the circumference of the shaft and, with respect to the longitudinal axis of the shaft, having a radius, the double of which is oversized relative to the diameter of the through-hole before the magnet is placed onto the projections of the shaft.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: June 14, 2016
    Assignee: Continental Automotive GmbH
    Inventors: Thorsten Alexander Kern, Andreas Walther
  • Patent number: 9263178
    Abstract: Disclosed is a coil structure including: a first wire rod including a first coil portion and a first lead wire connected to the first coil portion, the first coil portion winding around a coil axis in a first space; a second wire rod including a second coil portion, the second coil portion winding around the coil axis in a second space, the second space being aligned with the first space along the coil axis; and an insulating structure including a first insulating section that insulates the first coil portion from the second coil portion. The first lead wire portion extends through the second space. The insulating structure fixes the first lead wire portion at a position that is away from the second coil portion by not less than a minimum creepage distance between the first and second coil portions, the minimum creepage distance being defined by the first insulating section.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: February 16, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD
    Inventor: Eiji Takahashi
  • Patent number: 9236179
    Abstract: An interconnectable bobbin has first and second end flanges and a fastener on the first end flange positioned to engage a second bobbin on an adjacent leg of a multiple leg magnetic core. A magnetic component apparatus includes one or more of the interconnectable bobbins, the magnetic component apparatus including a magnetic core with first and second legs, the first leg extending into a first bobbin, and the second leg extending into a second bobbin, wherein the first and second bobbins are fastened together.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: January 12, 2016
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, Mike LeBlanc
  • Patent number: 9196414
    Abstract: The present disclosure relates to planar transformers including a plurality of circuit layers that are configured to reduce termination losses on at least one of the plurality of circuit layers. The plurality of circuit layers are stacked together in a first direction and include at least first and second circuit layers. The first and second circuit layers each include an electrically conductive trace forming at least one winding having a first termination portion and a second termination portion that are separated by a gap. The gaps of the first and second circuit layers are offset relative to each other in a second direction different from the first direction. The plurality of circuit layers may further include a third circuit layer, which includes an electrically conductive trace having a grounded portion that is disposed adjacent to at least one of the gaps of the first and second circuit layers.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: November 24, 2015
    Assignee: Covidien LP
    Inventor: Mark A. Johnston
  • Patent number: 9183974
    Abstract: A bobbin apparatus and associated magnetic component is configured to reduce gap losses associated with a core air gap in a bobbin-wound magnetic component such as an inductor or transformer. The bobbin includes a step structure protruding from the winding surface between bobbin ends. The step is operable to provide spacing between the conductive windings disposed on the bobbin and the core air gap inside the bobbin axial passage. The spacing reduces stray flux interactions with the conductive winding, thereby reducing gap losses and preventing undesirable heating of the winding and core. Additional winding configurations and methods for use with the bobbin apparatus are also provided.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: November 10, 2015
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, Mike LeBlanc, Brandon Dyer
  • Patent number: 9082544
    Abstract: To improve the insulation property of a coil winding wire without increasing the number of components. In a case where a coil winding wire 3 is inserted into a region formed by two side wall portions 41 and 42 and two connection portions 43 and 44 and this result is sandwiched between magnetic core members 6A and 6B, it is possible to prevent the two side wall portions 41 and 42 from contacting the coil winding wire 3 and the outer electronic components. Further, since the coil winding wire 3 is sandwiched by the connection portion 42 formed at the upper surface side of the coil winding wire 3 and the connection portion 44 formed at the lower surface side thereof from the upper and lower surfaces of the coil winding wire, the insulation property with respect to other electronic components in the up and down direction is also maintained.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: July 14, 2015
    Assignee: TDK CORPORATION
    Inventor: Akira Ikezawa
  • Patent number: 9035735
    Abstract: An object of the present invention is to provide a contact coil terminal having smaller numbers of components and assembling manhours, and thus, higher productivity. For this, there is a coil terminal 153 in which a press-fitting portion is pressed into a press-fitting groove (152c) provided at a corner portion of a flange portion (152a) of a spool (152) with a coil wound therearound, and a lead-out line of the coil is entwined around a coil entwining portion (153a) projected from the flange portion (152a), and the coil entwining portion (153a) is bent and raised. Particularly, the coil entwining portion (153a) extends in an opposite direction of a press-fitting direction of the press-fitting portion so as to be able to be bent and raised, and a lead wire connecting portion (153b) extends laterally to the press-fitting direction so as to be able to be bent and raised.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: May 19, 2015
    Assignee: OMRON Corporation
    Inventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
  • Patent number: 9030284
    Abstract: A combined structure of hollow bobbin and conductive sheet for a transformer includes a hollow bobbin and at least one conductive sheet. The hollow bobbin includes an outer surface and at least one positioning structure formed on the outer surface. The conductive sheet is fit on the outer surface of the hollow bobbin and includes a main body and at least one engaging structure. The main body has a hollow portion, making the main body to have an inner circumference. The engaging structure is formed on the inner circumference of the main body and is engaged with the positioning structure of the hollow bobbin. The transformer includes at least one winding disposed on the outer surface of the hollow bobbin and abutting against the conductive sheet.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: May 12, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Zhi-Liang Zhang, Ching-Hsien Teng, Yu-Liang Hung
  • Publication number: 20150123758
    Abstract: A transformer includes a core of magnetic permeable material around which both a primary coil and a secondary coil extend. A sheets of electrical insulation are located between the layers of windings of the primary and secondary coils, between the primary and secondary coils, and between the core and the coils. The sheet is formed of material that is non-conductive to electricity, and has a first major surface and a second major surface opposing each other. A first plurality of ribs projects outward from the first major surface. Optionally a second plurality of ribs projects outward from the second major surface of the sheet. The force exerted on to the inter-layer or inter-winding electrical insulation sheets during the winding process are absorbed by deformation of one or more of the ribs thereby inhibiting that force from adversely affecting the electrical insulating property of the sheet.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: Hammond Power Solutions, Inc.
    Inventor: Dhiru S. Patel
  • Patent number: 9019056
    Abstract: Disclosed are a coil component capable of securing insulation between primary and secondary coils while being miniaturized, a mounting structure thereof, and an electronic device having the same. The coil component includes a bobbin including a winding part around which coils are wound and first terminal fastening parts fastened to a plurality of first connection terminals; and a second terminal fastening part including terminal blocks protruded from the bobbin and a plurality of second connection terminals fastened to the terminal blocks, wherein the second terminal fastening part is mounted on a substrate while being spaced apart from the bobbin after the coils are wound therearound.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 28, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Duck Jin An, Ki Hung Nam, Soon Young Kwon, Myeong Sik Cheon
  • Publication number: 20150109087
    Abstract: A power transformer is provided that includes a first transformer component, a second transformer component; and an electrical insulator. The electrical insulator is disposed between the first transformer component and the second transformer component. The electrical insulator includes a first layer and a second layer. The first layer has a binder fiber. The binder fiber is a staple fiber coated with a binder material. The second layer has an uncoated staple fiber. The first layer and the second layer are bound together with the binder material.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 23, 2015
    Inventors: Thomas M. Golner, Shirish P. Mehta, Jeffery J. Nemec
  • Patent number: 8994487
    Abstract: A transformer includes a bobbin, at least one primary winding coil, at least one secondary winding coil, and a magnetic core assembly. The bobbin includes a main body, plural extension structures, and plural pin groups. The main body includes a channel, plural winding sections, a first connecting seat, and a second connecting seat. The plural extension structures are connected with the first connecting seat and the second connecting seat, respectively. In addition, each of the plural extension structures has a notch and a stepped structure, and the stepped structure comprises plural stepped parts. Each of the primary winding coil and the secondary winding coil includes plural outlet terminals. The plural outlet terminals of the secondary winding coil are respectively disposed on the plural stepped parts of the stepped structure and fixed on the pin group which is disposed on one of the extension structures.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 31, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Han-Hsing Lin, Hsiang-Yi Tseng, Ching-Hsiang Tien, Hsin-Wei Tsai, Yi-Lin Chen, Chun-Ping Chen
  • Patent number: 8970335
    Abstract: The coil form according to the invention for forming an inductive element includes a hollow cylindrical mantle portion, two flange portions and a slit. The flange portions and the mantle portion form a winding chamber for winding therein a wire that forms a first winding or a part of a first winding of the inductive element. The coil form, which is completely made of copper, forms a second coil or a winding of a second coil of the inductive element. Due to the increased contact surface between the first and the second coil the heat dissipation capabilities and the magnetic coupling between the coils are increased. This in turn results in an increased power density of the inductive element.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: March 3, 2015
    Assignee: DET International Holding
    Inventors: Joachim Peck, Jurgen Pilniak, Peter Wallmeier
  • Patent number: 8963673
    Abstract: In a hand tool device having at least one charging coil provided for transmitting energy, the charging coil includes a coil core having at least two core segments which are movable relative to each other.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: February 24, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Matthias Wolf
  • Publication number: 20150028981
    Abstract: An RF transformer is provided. The RF transformer includes a ferrite core and a winding coil structure formed around the ferrite core. The winding coil structure is in electrical contact with a center portion of the ferrite core. The winding coil structure is essentially electrically and physically spaced from external portions of the ferrite core.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 29, 2015
    Applicant: PPC Broadband, Inc.
    Inventors: Leon MARKETOS, Erdogan ALKAN
  • Patent number: 8933772
    Abstract: A coil component comprises: a coil bobbin, which has a coil-winding section in an outer circumferential portion so that a coil is to be wound on the coil-winding section, and which has a through-hole in a central portion thereof; a first core and a second core, which have a plurality of magnetic legs respectively, wherein a certain leg of the plurality of the magnetic legs of the first core and a certain leg of the plurality of the magnetic legs of the second core are inserted into the through-hole of the coil bobbin to face each other with a predetermined gap, and wherein facing surfaces of the certain legs of the magnetic legs are fixed by an adhesive; and a protective cover, which is positioned between the coil bobbin and the certain legs to suppress the adhesive from being attached to the coil bobbin.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: January 13, 2015
    Assignee: Minebea Co., Ltd.
    Inventors: Mitsuaki Suzuki, Masahiro Tanaka
  • Patent number: 8922318
    Abstract: A transformer includes a bobbin, a winding coil assembly, a magnetic core assembly, and a bracket. The bobbin includes a supporting part and a winding part. The winding coil assembly includes a primary winding coil and a secondary winding coil. The secondary winding coil has an outlet part. The primary winding coil and the secondary winding coil are wound around the winding part of the bobbin. The magnetic core assembly includes a first magnetic core and a second magnetic core. The bobbin is arranged between the first magnetic core and the second magnetic core. The bracket is connected with the supporting part of the bobbin for assisting in positioning the outlet part of the secondary winding coil.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: December 30, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Hsien-Chun Peng, Yi-Che Su, Zhi-Liang Zhang, Guang-Wei Li
  • Patent number: 8922320
    Abstract: The embodiment relates to a transformer. A transformer according to an aspect includes: a first coil assembly including a first core, a first bobbin coupled to the first core, and a first coil provided on the first bobbin; and a second coil assembly coupled to the first coil assembly, and including a second core, a second bobbin coupled to the second core, and a second coil provided on the second bobbin.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: December 30, 2014
    Assignee: LSIS Co., Ltd.
    Inventors: Jun Seok Eom, Woo Sup Kim
  • Patent number: 8922065
    Abstract: A wireless energy transfer system includes a first energy transfer unit having at least one resonant frequency, a second energy transfer unit having the at least one resonant frequency, and a load. The first wireless energy transfer unit includes a first coil magnetically coupled to a first wireless energy transfer cell, and the second wireless energy transfer unit includes a second coil magnetically coupled to a second wireless energy transfer cell. The first coil receives first energy and through the magnetic coupling between the first coil and the first wireless energy transfer cell, the first wireless energy transfer cell is caused to generate second energy, wherein the second wireless energy transfer cell receives the second energy and through the magnetic coupling between the second wireless energy transfer cell and the second coil, the second coil is caused to provide third electromagnetic wave energy to the load.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: December 30, 2014
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Mingui Sun, Steven Hackworth, Robert Sclabassi, Fei Zhang, Xiaoyu Liu
  • Patent number: 8922322
    Abstract: A combined structure of hollow bobbin and conductive sheet for a transformer includes a hollow bobbin and at least one conductive sheet. The hollow bobbin includes an outer surface and at least one positioning structure formed on the outer surface. The conductive sheet is fit on the outer surface of the hollow bobbin and includes a main body and at least one engaging structure. The main body has a hollow portion, making the main body to have an inner circumference. The engaging structure is formed on the inner circumference of the main body and is engaged with the positioning structure of the hollow bobbin. The transformer includes at least one winding disposed on the outer surface of the hollow bobbin and abutting against the conductive sheet.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: December 30, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Hua-Sheng Lin, Yi-Fan Wu, Yu-Chieh Li, Zhi-Liang Zhang, Ching-Hsien Teng, Yu-Liang Hung