Coil On A Preformed Support Or Mount Patents (Class 336/208)
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Patent number: 7724115Abstract: 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: GrantFiled: September 24, 2008Date of Patent: May 25, 2010Assignee: Delta Electronics, Inc.Inventors: Yi-Lin Chen, Hsin-Wei Tsai, Chia-Ching Lee, Shih-Yun Chen
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Patent number: 7717631Abstract: A coil bobbin includes: a body portion around which a coil is wound and having a cylindrical shape; a pair of flange portions formed at both ends of the body portion respectively; and terminal portions which are formed in the pair of flange portions, respectively, the terminal portions being around which respective ends of the coil are wound. The pair of flange portions have thicker portions and thinner portions, respectively, different from each other in thickness. The pair of flange portions is formed to gradually reduce a thickness from the thicker portions toward the thinner portions, respectively. The terminal portions are formed in the thicker portions, respectively.Type: GrantFiled: May 22, 2009Date of Patent: May 18, 2010Assignee: Seiko Precision Inc.Inventor: Mitsuru Suzuki
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Publication number: 20100117778Abstract: A transformer is provided. The transformer comprises a coil frame, an input coil and an output coil. The input coil and the output coil are both disposed on the coil frame and interlaced with each other. A second voltage outputted by the output coil is induced by a first voltage inputted into the input coil. The output coil comprises at least one metal strip to enhance the output power. The coil frame is formed with a plurality of coil openings with chamfered angles or rounded angles, so that the bended angle formed by the input coil at the location where the input coil passes each of the coil openings is substantially less than 15 degrees.Type: ApplicationFiled: January 7, 2009Publication date: May 13, 2010Applicant: DELTA ELECTRONICS, INC.Inventors: Jebby Luo, C.S. Kung
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Patent number: 7714687Abstract: 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: GrantFiled: February 28, 2005Date of Patent: May 11, 2010Assignee: Panasonic CorporationInventors: Tomio Marui, Koji Nakashima, Toshiyuki Nakata
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Patent number: 7714689Abstract: A transformer structure includes an iron core set, a main bobbin, and two sub-bobbins. The main bobbin includes a primary winding area for winding a first coil, a main bobbin through hole longitudinally mounted in and penetrating through the main bobbin, and two assembling troughs respectively formed at two ends of the main bobbin through hole. The two sub-bobbins are respectively accommodated in the two assembling troughs and respectively include a secondary winding area for winding a second coil and a sub-bobbin through hole communicated with the main bobbin through hole for penetrating the iron core set. Therefore, the sub-bobbins are mounted in two extended assembling troughs of the main bobbin, the first coil is wound on the primary winding area at the outer side of the main bobbin, and the first coil is separated from the second coils not only by horizontal distance but also by the assembling troughs.Type: GrantFiled: December 8, 2008Date of Patent: May 11, 2010Assignee: FSP Technology, Inc.Inventor: Wen Sen Hsieh
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Patent number: 7710230Abstract: A transformer including an insulating housing, a first bobbin, a primary coil, a second bobbin, a secondary coil, a first core and a second core is provided. The insulating housing has a first chamber and a second chamber separated from the first chamber, wherein two apertures of the first chamber and the second chamber are respectively disposed on two opposite side-walls of the insulating housing. The first bobbin has a first through hole disposed in the first chamber. The primary coil is surrounded on the first bobbin. The second bobbin has a second through hole disposed in the second chamber. The secondary coil is surrounded on the second bobbin. The first core is inserted to the first through hole and the second through hole. The first core and the second core are coupled together to form a magnetic loop.Type: GrantFiled: September 28, 2006Date of Patent: May 4, 2010Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Wan-Chin Hsu
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Publication number: 20100102914Abstract: 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: ApplicationFiled: May 20, 2009Publication date: April 29, 2010Applicant: AMPOWER TECHNOLOGY CO., LTD.Inventors: CHIH-CHAN GER, CHIA-KUN CHEN
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Patent number: 7692525Abstract: An improved choke assembly for a power electronics device is provided. More specifically, a choke assembly with improved protection from environmental conditions such as dirt and water is provided. An improved choke assembly may include a double layer of protection around an inductor coil of a choke that seals the inductor coil from the outside environment. Another embodiment may include a choke with a projection that seals the cabinet from the cooling channel while allowing the choke leads to pass into the cabinet.Type: GrantFiled: September 30, 2008Date of Patent: April 6, 2010Assignee: Rockwell Automation Technologies, Inc.Inventors: Peter John Halpin, Robert Allen Savatski, Paul Thomas Krause
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Patent number: 7676922Abstract: A micro-electromechanical system (MEMS) inductor is formed in a saucer shape that completely surrounds a magnetic core structure which is formed from a ferromagnetic material. In addition, an array of MEMS inductors can be formed by dividing up the saucer-shaped MEMS inductor into a number of electrically-isolated MEMS inductor wedges.Type: GrantFiled: June 19, 2007Date of Patent: March 16, 2010Assignee: National Semiconductor CorporationInventors: Peter J. Hopper, Peter Johnson, Kyuwoon Hwang, Philipp Lindorfer
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Publication number: 20100060396Abstract: A coil former for an electromagnetic relay is configured to receive a core and a coil winding. The coil former includes a first coil flange, a second coil flange, and a cylindrical winding area for fixing a coil winding arranged between the first and second coil flange, wherein at least one of the coil flanges is shaped such that at least a portion of one coil flange sits flush with the winding area of the coil former in a region of a periphery of the coil former. Also, a coil body for an electromagnetic relay includes a base integrally connected to the coil former. The coil former or the coil body is formed such that, in the production thereof, it has no more than three demolding directions for a master mould.Type: ApplicationFiled: November 19, 2009Publication date: March 11, 2010Inventors: Rudolf Mikl, Leopold Mader
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Patent number: 7639111Abstract: A high voltage transformer for a backlight power source includes a windings base, a core and windings, the windings base having isolating walls disposed exterior thereto through which a primary side region and a secondary side region are formed, the secondary side region being optionally formed with several windings troughs by using of the isolating walls and the windings being wound on the windings troughs, the windings being wound upward layer by layer on a bottom of the windings trough when the windings are wound across the isolating walls in prevention of the windings of different voltages flown therein crossing and contacting with each other and fixed onto a windings fixation post after the windings troughs are full, and the core being received within a hollow structure of the windings base. As such, distance generated from stacking of the windings is served to increase the bearing voltage and reduce length of the transformer.Type: GrantFiled: January 30, 2008Date of Patent: December 29, 2009Assignee: Logah Technology Corp.Inventors: Cheng Chia Hsu, Teng Kang Chang
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Publication number: 20090309686Abstract: A low profile coil-wound bobbin is disclosed. A low profile coil-wound bobbin includes a spool and a terminal. The spool is configured to have a coil-wire arrangement wound around the spool. The terminals are to be coupled to the coil-wire arrangement and a first side of a circuit board. The terminal is configured to mechanically and/or electrically couple the low profile coil-wound bobbin to the first side of the circuit board such that the low profile bobbin extends through the circuit board to another side of the circuit board.Type: ApplicationFiled: June 12, 2008Publication date: December 17, 2009Applicant: Power Integrations, Inc.Inventor: Marvin C. Espino
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Patent number: 7616086Abstract: There is provided an integrated type transformer that reduces the volume by integrating a plurality of transformers transmitting power for driving a plurality of lamps in an inverter circuit for an LCD into one transformer structure. An integrated type transformer according to an aspect of the invention includes a bobbin unit including a bobbin body having a predetermined length and a through hole therein in a longitudinal direction of the bobbin unit, and a core unit including an inner core inserted into the through hole of the bobbin unit, and an outer core formed along one surface in the longitudinal direction among outer circumferential surfaces of the bobbin unit and electromagnetically coupled to the inner core to form one magnetic path.Type: GrantFiled: December 26, 2007Date of Patent: November 10, 2009Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Gie Hyoun Kweon, Sug Chin Sakong, Chung Wook Roh, Sang Kyoo Han, Sung Soo Hong, Jong Rak Kim
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Publication number: 20090261938Abstract: The present invention provides a conductive module for use in a magnetic element. The conductive module includes a conductive base, an electronic component and a plurality of conductive units. The electronic component is coupled to the conductive base and disposed on one side of the conductive base. The conductive units have respective hollow portions. The conductive units are spaced from each other and fixed on the conductive base such that the hollow portions of the conductive units are aligned with each other to define a channel.Type: ApplicationFiled: March 27, 2009Publication date: October 22, 2009Inventors: Sheng-Nan Tsai, Yi-Fan Wu, Yung-Sheng Yeh, Jia-Li Tsai, Chia-Cheng Yang, Yung-Yu Chang
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Publication number: 20090251269Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method includes providing a first insulative layer having a curved surface along which a conductor segment may be positioned, and forming a channel in the insulative layer, which defines a first conductor path. The channel includes first and second opposing channel surfaces each extending from the surface of the insulative layer into the insulative layer and a third channel surface extending between the first and second channel surfaces. Each of the first and second channel surfaces includes a substantially flat surface portion with the surface portion of the first channel surface parallel with the surface portion of the second channel surface. A first segment of conductor is placed in the channel.Type: ApplicationFiled: April 3, 2008Publication date: October 8, 2009Inventors: Gerald Stelzer, Rainer Meinke, Mark Senti
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Publication number: 20090251271Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method includes forming a structure comprising layers of material extending along a first aperture path. The structure includes multiple concentric layer surfaces. A channel is formed in each of the layers of the material and along each of the multiple surfaces. Conductive material is positioned in each channel to provide a spiral configuration. The surfaces of multiple ones of the layers are of tubular shape. The layers of material are sequentially positioned one over another and about an axis along which first and second opposing coil end regions are formed. The layers are formed with a region of a first thickness and a shoulder region. The shoulder region is alternately formed in the sequence at one coil end region or at the other coil end region.Type: ApplicationFiled: April 3, 2008Publication date: October 8, 2009Inventors: Gerald Stelzer, Rainer Meinke, Paul Bruton
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Publication number: 20090251270Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first layer that is tubular in shape with an outer surface along which a conductor may be positioned. A channel defining a first conductor path is formed in the first layer outer surface to create a pattern extending along the first layer. A first segment of conductor is placed in the first channel and defines a shape about an aperture region. After placing the first segment of conductor in the first channel, at least part of the first layer outer surface and at least part of the first segment of conductor are coated with a second layer. A second channel is formed along an outer surface of the second layer to define a second conductor path extending about the aperture region for placement of a second segment of conductor.Type: ApplicationFiled: April 3, 2008Publication date: October 8, 2009Inventors: Rainer Meinke, Gerald Stelzer
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Publication number: 20090231080Abstract: The invention relates to a coil former (1) for an electrical coil having a hollow central region for accommodating a subregion of a coil core (2) in the interior (11a) of the hollow central region and for applying at least one winding (3) to the outer side (11b) of the central region, movable flaps (12a, 12b) being arranged at side regions of the coil former (1) and being designed such that, in the closed state, they are arranged as electrical insulation between the winding (3) and adjacently arranged outer limbs (21) of the coil core (2). The invention also relates to an electronic component having such a coil former (1) and to a method for producing such an electronic component.Type: ApplicationFiled: July 27, 2006Publication date: September 17, 2009Applicant: Patent-Treuahand Gesellschaft Fur Elektrische Gluhlampen MBHInventors: Wolfgang Ebert, Jürgen Klier, Bernhard Orben
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Patent number: 7573364Abstract: A coil unit including an annular toroidal core, two coils wound over the toroidal core providing a bifilar winding, a winding-start positioning part, and a winding-end positioning part. The winding-start positioning part is adapted for making contact with a winding-start portion of the coils. The winding-end positioning part is adapted for making contact with a winding-end portion of the coils for regulating the positions of the winding-start portion and the winding-end portion relative to the toroidal core.Type: GrantFiled: December 12, 2007Date of Patent: August 11, 2009Assignee: TDK CorporationInventors: Hiroshi Suzuki, Kazunori Arimitsu, Yutaka Hatakeyama, Hideki Sasaki, Masaru Kumagai
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Publication number: 20090160596Abstract: A magnetic device includes a circuit board, a magnetic induction element, an insulating structure and a plurality of conductive wire segments. The circuit board has at least one conductive layer. The magnetic induction element is disposed on the circuit board. The insulating structure covers the magnetic induction element. The insulating structure is wound by the conductive wire segments. Two ends of each conductive wire segments are electrically connected to the conductive layer to form a coil loop.Type: ApplicationFiled: March 20, 2008Publication date: June 25, 2009Inventors: Chung-Jung Yang, Chuan-Yuan Kung, Man-Mei Chen, Po-Jen Tsai
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Patent number: 7535331Abstract: A booster transformer 100 for driving a magnetron includes a bobbin 11 on which at least a first winding 13 and a secondary winding 15 are wound and a core 19 inserted through the center of the bobbin 11, wherein a winding area of the secondary winding 15 is divided into two areas while interposing a partition wall 23, and an outer diameter d of a wire material of the secondary winding 15 and a width t1 of each of the divided winding areas are so set as to satisfy the relation t1<11d.Type: GrantFiled: April 14, 2004Date of Patent: May 19, 2009Assignee: Panasonic CorporationInventors: Shinichi Sakai, Keiichi Satou, Kenji Yasui, Haruo Suenaga, Hisahi Morikawa
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Patent number: 7528694Abstract: A transformer. The transformer comprises a bobbin, a first core and a second core. The bobbin comprises a primary winding area and a secondary winding area. The first core is disposed in the bobbin. The second core is mounted on the bobbin. The second core comprises a plurality of first protrusions which are disposed at two sides of the bobbin. A second protrusion is integrally formed on the second core and is disposed between the first protrusions. The second protrusion is disposed between the primary winding area and the secondary winding area.Type: GrantFiled: January 4, 2007Date of Patent: May 5, 2009Assignee: Delta Electronics, Inc.Inventors: Hsiang-Yi Tseng, Chen-Feng Wu
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Publication number: 20090108979Abstract: A transformer for use in a power supply has a primary winding, a secondary winding, a bobbin on which the primary and secondary windings are separately wound, and a core subassembly mounted in the bobbin. An opening is formed in the cylindrical portion of the bobbin, and an inside core in the magnetic core insertion hole and an outside core located outside the hole are adhesively bonded together via a spacer through the opening in the cylindrical portion.Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Applicant: TAIYO YUDEN CO., LTD.Inventors: Akifumi KOSUGI, Kichi KIKUCHI, Yasuo HOSAKA
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Publication number: 20090102593Abstract: A coil form for forming an inductive element (10) includes a coil body (2) and at least one, for example three separating plates (3). The coil body (2) has an opening (4.1) and includes two portions, a coil portion (6) and a flange portion (7). To put the inductive element (10) together, the separating plates (3) are pushed over the coil portion (6) of the coil body (2). For positioning of the separating plates (3), recesses (8) are provided on the surface of the coil portion (6). The separating plates (3) divide the surface of the coil portion (2) into a plurality of coil areas where the coil or the coils of the inductive component (10) can be provided, for example by winding an isolated wire around the coil portion (6) in a coil area. Afterwards, the core of the inductive component is installed by fitting the two E-shaped core parts (11.1, 11.2) together such that the middle leg (13) of each core part (11.1, 11.2) is inserted into the opening (4.1) of the core body (2).Type: ApplicationFiled: September 22, 2008Publication date: April 23, 2009Inventor: Jurgen Pilniak
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Patent number: 7515026Abstract: A transformer includes a first bobbin piece, a second bobbin piece, a first pin, a second pin and a magnetic core assembly. A primary winding coil is wound on the first bobbin piece. The second bobbin piece includes a first secondary side plate, a second secondary side plate, a plurality of partition plates, a wall portion, and a secondary base. A secondary winding coil is wound on the second bobbin piece. The second pin includes a wire-arranging part, an insertion part and an intermediate part. The wire-arranging part is protruded from the second secondary side plate. The intermediate part is buried in the wall portion. The insertion part is protruded from the bottom surface of the secondary base. A first terminal of the secondary winding coil is fixed on the first pin. A second terminal of the secondary winding coil is fixed on the wire-arranging part of the second pin.Type: GrantFiled: February 25, 2008Date of Patent: April 7, 2009Assignee: Delta Electronics, Inc.Inventors: Tzu-Yang Liu, Ching-Hsien Teng, Hsin-Wei Tsai
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Publication number: 20090066290Abstract: A battery-charging system includes a power supply having a high-frequency transformer and is configured to deliver a battery charging power to charge at least one battery. The high-frequency transformer has a bobbin including an elongated top and bottom surfaces and first and second substantially semi-circular end surfaces connecting the top surface with the bottom surface to form an elongated first coil winding surface having a central axis. A first coil is wound around the first coil winding surface, and a second coil is magnetically coupled to the first coil and wound thereto.Type: ApplicationFiled: September 11, 2007Publication date: March 12, 2009Inventors: Kenneth Altekruse, James D. Kimball, Dennis Sigl, Bernard J. Vogel, Jeffrey Lonigro
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Patent number: 7495539Abstract: The present invention provides an in-line filament transformer for a vacuum device. The filament transformer comprises: a core; a primary winding and a secondary winding wound around the core, wherein the secondary winding is biased at a high voltage and the primary winding is placed in line with the secondary winding; and a shield for shielding the primary winding. In an embodiment, the transformer comprises a bobbin for incorporating primary winding and secondary winding. An arrangement of increasing creepage distance is incorporated in the bobbin by providing plurality of sections on the bobbin. The invention also provides a shield in the primary section of the bobbin for shielding the primary winding from the secondary winding. In an embodiment the shield is in the form of shield winding of thin wires wound in a defined manner.Type: GrantFiled: October 2, 2006Date of Patent: February 24, 2009Assignee: General Electric CompanyInventor: Senthil Kumar Sundaram
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Patent number: 7482906Abstract: A first aspect of the disclosure concerns a driving assembly for a power toothbrush which includes a drive member, specifically an E-core electromagnet, a driven member which is responsive to the action of the drive member and a workpiece mounted on the distal end of the driven member. The drive assembly includes an interface registration member, to one end surface portion of which is secured the end face of E-core electromagnet, another portion of which is configured to produce a selected registration of the driven member and the driving assembly, and still another portion of which is configured to produce a selected registration of the interface member relative to the handle of the toothbrush. A second aspect of the disclosure concerns a split bobbin assembly for an electrical coil portion of an electromagnet in a power toothbrush.Type: GrantFiled: August 8, 2006Date of Patent: January 27, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Scott E. Hall, Craig D. Hanela, Richard K. Taylor
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Patent number: 7459863Abstract: A transformer for driving multiple lamps includes a core, a primary winding set, a secondary winding set and a balancing winding set. The primary winding set winds around the core and includes a first primary coil. The secondary winding set winds around the core and includes a first secondary coil. The balancing winding set winds around the core and includes a first balancing coil and a second balancing coil which wind around the core in a combinative way. The primary winding set, the secondary winding set and the balancing winding set have the same magnetic-flux loop in the core.Type: GrantFiled: September 27, 2007Date of Patent: December 2, 2008Assignee: Darfon Electronics Corp.Inventors: Ching-Fu Hsueh, Cheng-Hsien Chien, Wan-Chin Hsu
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Publication number: 20080290981Abstract: An electrical winding can be arranged concentrically around a magnet core. A novel transformer includes at least one magnet core and at least one electrical winding, wherein the electrical winding can be arranged concentrically around the magnet core. The electrical windings are connected fixedly to a fixing apparatus, wherein the fixing apparatus can be fixed in a radial plane. As a result, subsequent fixing of the electrical windings in relation to one another and in relation to the magnet core which is to be reinforced mechanically is dispensed with.Type: ApplicationFiled: November 20, 2006Publication date: November 27, 2008Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Joachim Bischoff, Karl-Heinz Charwat, Rudolf Hanov, Peter Olschewski, Richard Sille
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Patent number: 7449986Abstract: A planar coil component includes terminal metal fittings that include a crimping part, a terminal part, and a junction, and a bobbin on which a winding is wound. The bobbin has a terminal board including insertion holes. The terminal part is inserted from an upper surface of the terminal board into the insertion holes with the junction exposed, so that the terminal part projects from a bottom surface of the terminal board, each end of the winding is inserted into the crimping part through a slot in the bottom surface of the terminal board, and crimped. The winding is one of a litz wire, a stranded wire, and a parallel wire, and welded at an end tip and connected to the terminal metal fitting.Type: GrantFiled: October 17, 2007Date of Patent: November 11, 2008Assignee: TDK CorporationInventors: Kenichi Yamaguchi, Masaaki Iwakura, Toru Kuramochi
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Patent number: 7446642Abstract: An inductor includes a bobbin, a first winding, a second winding, a core set and a magnetic element. The first and second windings are respectively wound around the bobbin and separated by a partition, which is formed on the bobbin and has a recess for accommodating the magnetic element. The core set has one portion passing through the bobbin and the other portion surrounding the bobbin, the first winding and the second winding. The magnetic element is connected with the one portion of the core set passing through the bobbin and is apart from the other portion of the core set outside the bobbin by a gap.Type: GrantFiled: July 23, 2007Date of Patent: November 4, 2008Assignee: Delta Electronics, Inc.Inventors: Jung-Chan Fang, Chen-Feng Wu
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Patent number: 7446637Abstract: A parent-child leadframe type transformer includes a ferrite core module, a child leadframe and a parent leadframe. The parent leadframe has a first opening and a second opening on both ends. The length of the second opening is greater than the length of the first opening along the same axial direction. A containing space is defined between the first and second openings. The child leadframe has a coil winding slot and a through hole for installing the ferrite core module. The axial length of the child leadframe falls between the first and second openings, such that the child leadframe and the ferrite core module can be passed through the second opening, but limited by the first opening. The child leadframe, ferrite core module and parent leadframe are positioned to define a parent-child type transformer structure for reducing the overall height and complying with the safety regulation standards.Type: GrantFiled: October 18, 2007Date of Patent: November 4, 2008Assignee: FSP Technology Inc.Inventors: Chi-Tsung Liang, Yu-Chun Chou, Chih-Hsien Liu
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Patent number: 7443277Abstract: A coil component including a flanged core having a flange portion on at least one end portion of winding core, a coil that is wound around the winding core, a bottomed cylindrical cup-shaped core consisting of a bottom portion and a circumferential wall portion, and at least two or more resin base members having metal terminals, wherein cut-out portions of at least two places or more are formed in the circumferential wall portion, and the resin base members are disposed along a lateral circumferential surface of the flange portion.Type: GrantFiled: June 15, 2006Date of Patent: October 28, 2008Assignee: Sumida CorporationInventor: Takayuki Yamaguchi
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Publication number: 20080238239Abstract: A coil member such as a coil bobbin may include a cylindrical drum part around which a coil is to be wound in a circular shape. The cylindrical drum part is formed by two molding dies and a flat face part is formed on an outer peripheral face of the cylindrical drum part so that a space part is formed between an innermost circumferential face of the coil to be wound and the flat face part. The flat face part is formed so that the two molding dies are separated without pressing the outer peripheral face of the cylindrical drum part, and a joining part on the drum part which is formed by the two molding dies is located on the flat face part. The coil member may be only a coil bobbin, a coil bobbin with a terminal part, or a coil bobbin which is integrated with a stator core.Type: ApplicationFiled: March 31, 2008Publication date: October 2, 2008Inventor: Hiroyuki Sonohara
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Patent number: 7429908Abstract: A coil form for forming an inductive element (10) includes a coil body (2) and at least one, for example three separating plates (3). The coil body (2) has an opening (4.1) and includes two portions, a coil portion (6) and a flange portion (7). To put the inductive element (10) together, the separating plates (3) are pushed over the coil portion (6) of the coil body (2). For positioning of the separating plates (3), recesses (8) are provided on the surface of the coil portion (6). The separating plates (3) divide the surface of the coil portion (2) into a plurality of coil areas where the coil or the coils of the inductive component (10) can be provided, for example by winding an isolated wire around the coil portion (6) in a coil area. Afterwards, the core of the inductive component is installed by fitting the two E-shaped core parts (11.1, 11.2) together such that the middle leg (13) of each core part (11.1, 11.2) is inserted into the opening (4.1) of the core body (2).Type: GrantFiled: October 1, 2002Date of Patent: September 30, 2008Assignee: DET International Holding LimitedInventor: Jurgen Pilniak
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Patent number: 7423510Abstract: A transformer (10) with high sustain voltage includes a first bobbin (125), a second bobbin (126), a core assembly (127), and an insulating frame (128a). The first bobbin defines a first hollow therein. The second bobbin is coupled to the first bobbin, and defines a second hollow therein. The core assembly includes a first iron core (127a) partly received in the first hollow and a second iron core (127b) partly received in the second hollow. The insulating frame is disposed between the first bobbin and the second bobbin, for insulatively isolating at least one part of the first iron core from the second iron core.Type: GrantFiled: December 23, 2006Date of Patent: September 9, 2008Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Chih-Chan Ger, Yu-Chi Tsai
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Patent number: 7408436Abstract: A bobbin has a bobbin body capable of fitting into the inside of a winding, and a protrusion protruding from the outer peripheral surface of the bobbin body and capable of intervening between windings. Preferably, stopper means is further provided for preventing the bobbin from rotating. This means is a stopper piece which protrudes from the outer peripheral surface of the bobbin body substantially on the opposite side of the protrusion, and fits in a slit formed at a bend of the winding. The stopper means may have a flange extending from one end of the bobbin body, and a stopper protrusion protruding from a flange edge in a direction opposite to a direction in which the bobbin body extends, for engagement with a core. The protrusion may have a thickness dimension equal to or larger than a spacing between windings.Type: GrantFiled: January 27, 2005Date of Patent: August 5, 2008Assignee: TDK CorporationInventor: Akira Ikezawa
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Publication number: 20080169894Abstract: An electronic component in accordance with the invention includes a body, such as a base, having a high magnetic permeability material applied to an external surface thereof and a wire winding wound about at least a portion of the high magnetic permeability material. In a preferred form, the body is made of a non-conducting material, such as ceramic or plastic, and the high magnetic permeability material is made of a magnetic material such as ferrite or a metallic glass alloy (i.e., an amorphous metal). The component further includes a spacer for separating the wire winding from the high magnetic permeability material in order to prevent the amorphous metal from damaging the wire winding. The resulting electronic component is capable of sensing magnetic fields and may be used in a variety of circuits such as compasses and magnetometers.Type: ApplicationFiled: January 24, 2008Publication date: July 17, 2008Applicant: COILCRAFT, INCORPORATEDInventors: Gregory L. Proehl, Craig Verdung, Steven W. Hickman
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Patent number: 7397337Abstract: An improved winding base structure of a transformer is assembled by combining a primary-side winding base and a secondary-side winding base. The selection of the material of the primary-side winding base and the secondary-side winding base is dependant on the compression-resistant capability because the primary-side input and the secondary-side output of the transformer bear different voltages. The outside of the assembled winding base is disposed with grooves in which the wires are wound, and the center of the winding base is disposed with a through hole for an iron core to be put therein to form a transformer. The sectional winding base of the subject application is characterized in that the primary-side winding base is made of lower compression-resistant material and the secondary-side winding base is made of higher compression-resistant material. Therefore the production cost of the winding base is reduced.Type: GrantFiled: October 23, 2006Date of Patent: July 8, 2008Assignee: Logah Technology Corp.Inventors: Cheng-Chia Hsu, Yung-Chin Chou
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Patent number: 7391294Abstract: A winding for a toroidal electrodynamic machine is formed by providing a set of bobbins in a rectilinear array, winding the bobbins so that each phase is of one continuous wire, with each set of phases wound one bobbin at a time, the completed rectilinear array then being formed into a circular array for the machine. The rectilinear array has bobbins formed and is wired in such a way that bending into a torus is possible.Type: GrantFiled: December 12, 2003Date of Patent: June 24, 2008Assignee: Wellington Drive Technologies LimitedInventors: David James Howell, Drazen Jaksik
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Patent number: 7388463Abstract: An electromagnetic coil assembly comprising a spool-spindle and a case. The spool-spindle comprises a spindle portion and a larger included portion. The spindle portion has a conductor wound thereon. The larger included portion has opening for receiving the conductor. The case has a first case end and a second case end, with an opening extending through the case. A first internal surrounding surface extends from the second case end and a second surrounding internal surface having a smaller diameter extends from the first case end. The first internal surrounding surface meets the second internal surrounding surface at an annular internal wall. The spool-spindle is positioned in the case until the larger include portion abuts against the annular internal wall, and the case and spool-spindle are joined.Type: GrantFiled: February 1, 2005Date of Patent: June 17, 2008Assignee: Infusion Systems, LLCInventors: John Duggan, Norbert W. Frenz, Jr.
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Carrier Device for a Toroidal-Core Choke, Holder for an Inductive Component, and Inductive Component
Publication number: 20080129436Abstract: A carrier device for a toroidal-core choke includes a base plate, which has projecting wire-guiding devices. A holder for an inductive component includes the carrier device and an electrical isolation device. The holder can be part of an inductive component.Type: ApplicationFiled: December 14, 2007Publication date: June 5, 2008Inventors: Guenter Feist, Juergen Stabenow -
Patent number: 7382221Abstract: The differences in characteristics among parts or the fluctuations of the inductance value of a coil due to temperature variation is lessened by reducing the stray capacitance components induced among the layers of wound conductor, and size reduction and cost reduction are achieved. A winding portion (30) between two flange portions (22a, 22b) is divided into a plurality of sections (30a, 30b, 30c, 30d). One layer of conductor is wound from one end to the other end in each section, and then layers of conductor are wound in the alternately reversed directions to form the multilayer winding portion (30) by solenoid winding. The conductor is preferably wound in such a way that the boundary surface between adjacent sections inclines to a flange portion, which is the winding start, and the boundary surface of an upper layer is closer to the flange portion than that of a lower layer.Type: GrantFiled: December 24, 2004Date of Patent: June 3, 2008Assignee: Sumida CorporationInventors: Yasunori Morimoto, Hiromitu Kuriki
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Patent number: 7378932Abstract: A current sense transformer is provided for which includes a bobbin; the bobbin includes a winding portion for supporting a coil of wire. The winding portion includes a horizontal substantially flat base portion, a horizontal substantially flat top portion and a step portion. The step portion is disposed on top of the horizontal substantially flat base portion. The horizontal substantially flat top portion is disposed on top of the step portion substantially in parallel to the horizontal substantially flat base portion. The top portion has a central recess, raised portions on its upper surface separated from each other, and a ridge on one side of its lower surface. The central recess and the raised portions cooperate to accept a magnetic core, such that the core is substantially flush with the raised portions.Type: GrantFiled: May 11, 2007Date of Patent: May 27, 2008Assignee: Ice Components, Inc.Inventors: David E. Crow, George G. Stokes, Jr., Ken Chen, Gary Lee
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Patent number: 7372353Abstract: An inverse phase converter includes a first bobbin, a plurality of second bobbins, a first magnetic core and a second magnetic core. The first magnetic core and the second magnetic cores are overlapped and coupled to form at least one closed magnetic path. The first bobbin has a wire gathering portion to allow a primary coil to be wound horizontally to increase the winding space thereof. The winding direction of the primary coil is normal to the winding direction of a secondary coil wound on the second bobbin. The temperature generated by the primary coil is lower, and the length of the magnetic cores may be shortened.Type: GrantFiled: August 29, 2005Date of Patent: May 13, 2008Assignee: Taiwan Thick-Film Ind. Corp.Inventor: Chi-Chih Wu
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Patent number: 7365630Abstract: Disclosed is a low magnetic leakage high voltage transformer in which two winding brackets are mounted in an electrically insulative holder frame to hold two primary windings and two secondary windings at two sides, two U-shaped FERRITE cores are inserted into the winding brackets from two sides and abutted against each other, and a straight FERRITE core is inserted into an insertion slot on the electrically insulative holder frame into contact with the abutted U-shaped FERRITE cores and isolated from the primary windings and the secondary windings by baffle flanges of the electrically insulative holder frame, and two electrically insulative caps are capped on the winding brackets and abutted against two opposite sides of the electrically insulative holder frame to increase the creepage distance between conducting terminals of the windings and the FERRITE cores, for enabling the secondary windings to output two high voltages stably for driving multiple loads.Type: GrantFiled: June 24, 2007Date of Patent: April 29, 2008Assignee: Taipei Multipower Electronics Co., Ltd.Inventors: Ching-Sheng Yang, Su-Hua Wu, Yuan-Kuei Cheng
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Patent number: 7360294Abstract: A method of assembling an inductive proximity sensor maintains inductive coil wound bobbins in fixed relation to an inductive core within a housing. The method includes configuring two inductive coil wound bobbins with an integral ledge cantilevered from an inside surface thereof for forming a pocket under the integral ledge at a bottom of each bobbin; disposing each inductive coil wound bobbin around a corresponding leg of the inductive core; containing a foot of each core leg into the pocket of the corresponding bobbin; inserting each of two legs of a thruster element into a corresponding bobbin so that each leg rests upon the ledge of the corresponding bobbin; disposing the inductive core, inductive coil wound bobbins, and thruster element into the housing; disposing a spring element on a top surface of the thruster element; and compressing the spring element against the top surface of the thruster element.Type: GrantFiled: January 5, 2007Date of Patent: April 22, 2008Assignee: Simmonds Precision Products, Inc.Inventors: Robert D. LaClair, David Henry Crowne, Christopher Spagnoletti, Eric Carter
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Patent number: 7356911Abstract: A method for producing an insulated wire having a cross section of a desired shape, in which a conductor having a cross section of a desired shape is coated with an insulating film, which method comprises: supplying a raw conductor while passing through a rolling unit composed of at least one pair of rolling rolls that are capable of freely rotating without a drive mechanism and that have a desired shape, thereby forming a conductor having a cross section of a desired shape; and coating the conductor with an insulating film.Type: GrantFiled: June 27, 2005Date of Patent: April 15, 2008Assignee: The Furukawa Electric Co., Ltd.Inventors: Toshinobu Harada, Masaki Sugiura, Satoshi Saitou
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Publication number: 20080079529Abstract: A coil for a magnetic resonance device is provided. The coil includes a cylindrical coil insulating frame with at least one winding groove running around its circumference, at least one coil conductor wound into the winding groove around the coil insulating frame, and one electrically-insulating insulator lining the winding groove and insulating the coil insulating frame and the coil conductor from each other. The insulation includes a number of molded insulating segments that line the winding groove, supplementing each other to form a circular ring which matches the cross-sectional shape of the winding groove.Type: ApplicationFiled: September 21, 2007Publication date: April 3, 2008Inventor: Martin Schmidt