By Assembling Coil And Core Patents (Class 29/606)
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Patent number: 8869383Abstract: A magnetics assembly (100) including a transformer (1) made of litz wire. The transformer includes a toroid core (2) and a bundle of wires (3) winding around the toroid core. The bundle of wires includes first to eighth wires, and has a central portion with all eight wires twisted together and winding around the toroid core. First and second ends of the bundle of wires oppositely extend out from the toroidal core. The ends of the first to eighth wires are connected to form a primary and a secondary coils of the transformer, wherein the second ends of the first wire and the second wire, and the first ends of the third wire and the fourth wire are sorted out to form central taps (35, 36) of the primary and secondary coils, respectively.Type: GrantFiled: June 14, 2012Date of Patent: October 28, 2014Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Yong-Chun Xu, Jie Zhang
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Patent number: 8857043Abstract: A method of manufacturing a leadless marker for localizing the position of a target within a patient. According to one embodiment, the method includes providing a ferromagnetic element; positioning a coil of an inductor at least around a portion of the ferromagnetic element, wherein the coil comprises a plurality of windings of a conductor; and positioning the ferromagnetic element such that the radiographic and magnetic centroids of the marker are at least substantially coincident. The marker does not have external electrical lead lines extending through the casing. The ferromagnetic element is at least partially within the inductor. The ferromagnetic element has a volume such that when the marker is in an imaging magnetic field having a field strength of 1.5 T and a gradient of 3 T/m, then the force exerted on the marker by the imaging magnetic field is not greater than gravitational force exerted on the marker.Type: GrantFiled: September 27, 2007Date of Patent: October 14, 2014Assignee: Varian Medical Systems, Inc.Inventors: Steven C. Dimmer, Eric Hadford
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Patent number: 8857042Abstract: Disclosed is a method for producing a stator for a rotary electric machine, which involves preparing a stator core having a plurality of slots. Each of a plurality of coils is provided with a pair of coil ends, a first side, and a second side. The first side and/or the second side is inserted into the retaining groove of a jig, and each coil is set on the jig in a manner such that both coil ends extend further to the outside than the end surfaces of the jig in the axial direction thereof. The jig is disposed inside the stator core in the diameter direction. The space between the first side and the second side of the coil is expanded by applying pressing force to both coil ends from the axial direction of the stator core by means of a pressing member.Type: GrantFiled: March 10, 2011Date of Patent: October 14, 2014Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Takuya Hasegawa, Kazuyuki Yamaguchi
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Publication number: 20140300442Abstract: A device is disclosed to include: a first set of windings and a second set of windings that are formed in a printed wiring board (PWB) and that are to be magnetically coupled, wherein upon receiving an applied voltage, the first set of windings generates a first uniform external field and induces the second set of windings to generate a second uniform external field; a first conductor formed in the PWB and positioned at a first location that is within the first uniform external field; and a second conductor formed in the PWB and positioned at a second location that is within the second uniform external field; wherein the first conductor and the second conductor are galvanically coupled.Type: ApplicationFiled: April 7, 2014Publication date: October 9, 2014Inventor: Fred O. Barthold
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Publication number: 20140292459Abstract: A magnetic device is provided. The magnetic device includes a magnetic core and a conductive winding inductively coupled to the magnetic core. The conductive winding includes a first terminal segment, a second terminal segment, and an inductive segment electrically coupled in series therebetween. The first terminal segment includes a current sensing element.Type: ApplicationFiled: June 16, 2014Publication date: October 2, 2014Inventors: Joao Luiz Andres, John F. Steel, Robert James Catalano, Loc Ngo
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Publication number: 20140292458Abstract: A magnetic device is provided. The magnetic device includes a magnetic core and a conductive winding inductively coupled to the magnetic core. The conductive winding includes a first terminal segment, a second terminal segment, and an inductive segment electrically coupled in series therebetween. The first terminal segment includes a current sensing element.Type: ApplicationFiled: March 18, 2014Publication date: October 2, 2014Applicant: General Electric CompanyInventors: Joao Luiz Andres, John F. Steel, Robert James Catalano, Loc Ngo
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Publication number: 20140266548Abstract: Systems and methods for creating an inductive element are disclosed. Multiple partial windings may be created relative to a core, where each of the partial windings is initially discontinuous. Multiple printed conductors may be created on a substrate, where the multiple printed conductors are arranged to electrically connect the multiple partial windings. The multiple partial windings may be electrically connected to the multiple printed conductors to create a complete winding around the core.Type: ApplicationFiled: March 7, 2014Publication date: September 18, 2014Applicant: Eldon Technology LimitedInventor: John Nicholas Brooksbank
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Publication number: 20140266552Abstract: An integrated inductor assembly is provided. The integrated inductor assembly includes a magnetic core, a first inductor, and a second inductor. The magnetic core has a first side, an opposing second side, and an opening defined within the magnetic core. The opening extends into the magnetic core from at least one of the first side and the second side. The first inductor includes a first conductive winding inductively coupled to the magnetic core. The first conductive winding includes a first shorting segment positioned within the opening. The second inductor includes a second conductive winding inductively coupled to the magnetic core. The second conductive winding includes a second shorting segment positioned within the opening. The first and second inductors are configurable to operate independently of one another.Type: ApplicationFiled: March 4, 2014Publication date: September 18, 2014Applicant: General Electric CompanyInventors: Arturo Silva, John Steel
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Publication number: 20140266530Abstract: An integrated magnetic assembly includes a magnetic core, an input winding inductively coupled to the magnetic core, a first output winding inductively coupled to the magnetic core, and a second output winding inductively coupled to the magnetic core. The magnetic core includes first and second non-winding legs, and first and second winding legs. The first and second non-winding legs are spaced apart from one another, and the magnetic core defines an opening between the first and second non-winding legs. The input winding extends through the opening between the first and second non-winding legs, and is wound around each of the first and second winding legs. The first output winding is wound around the first winding leg. The second output winding is wound around the second winding leg.Type: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Inventors: Joao Luiz Andres, Jouni Timo Uusitalo, Arturo Silva
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Publication number: 20140277223Abstract: The present disclosure provides methods and techniques associated with a planar transformer for an apparatus. The planar transformers include a substrate carrying electronic components, an upper core bonded on a first exterior surface of the substrate, and a lower core bonded on a second exterior surface opposed to the first side of the substrate. The electronic components include primary windings and secondary windings associated with the transformer. In some embodiments, the transformer includes encapsulant material that is dispensed over and between the components of the transformer to seal air gaps.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: MEDTRONIC, INC.Inventors: Mark R. Boone, Mohsen Askarinya, Mark S. Ricotta, Lejun Wang
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Publication number: 20140266558Abstract: A magnetic core is provided. The magnetic core includes a magnetic base and a magnetic plate. The magnetic base includes a first U-core, a second U-core, and a spacing member. The first U-core has a relatively high magnetic permeability, and includes a first surface having a first winding channel defined therein. The second U-core has a relatively high magnetic permeability, and includes a second surface having a second winding channel defined therein. The first and second surfaces are substantially coplanar with one another. The spacing member is connected to the first and second U-cores such that a gap having a relatively low magnetic permeability is formed between the first and second U-cores. The magnetic plate is coupled to the magnetic base such that the magnetic plate substantially covers the first and second surfaces.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: GENERAL ELECTRIC COMPANYInventor: Robert James Catalano
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Publication number: 20140266541Abstract: An electronic component includes a magnetic core member, a winding and a magnetic exterior body. The magnetic core member has a flat base and a core. The flat base has a top surface, a bottom surface, a first side surface and a second side surface opposite to the first side surface. The core is located on the top surface of the flat base. A winding has an edgewise coil and two non-wound flat wires that extend from the edgewise coil. A magnetic exterior body covers at least the core and the edgewise coil. The two non-wound flat wires continuously extend along the top surface, the first side surface, the bottom surface and the second side surface of the flat base in this order. The two non-wound flat wires located on the bottom surface work as electrodes.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: SUMIDA CorporationInventors: Shinichi SAKAMOTO, Zhigang CHENG, Fernando Chan Mock, Mitsugu KAWARAI
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Publication number: 20140266546Abstract: A package comprises a substrate with a plurality of metal tracks, a via hole formed in the substrate, wherein the sidewall of the via hole is partially plated and the via hole is filled with a magnetic material, and a first winding magnetically coupled to the via hole.Type: ApplicationFiled: February 22, 2014Publication date: September 18, 2014Inventor: Hengchun Mao
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Patent number: 8826514Abstract: Microfabricated inductors with through-wafer vias and including a first wafer and a second wafer, each wafer having a plurality of metal fillings therein, and a plurality of metal conductors connecting the plurality of metal fillings together to form a spiral. A method for producing an inductor including steps of forming a first plurality of vias in a first substrate, filling the first plurality of vias in the first substrate with a first plurality of metal fillings, forming a first plurality of metal conductors, connecting pairs of the first plurality of metal fillings together using the first plurality of metal conductors to form a spiral, performing the foregoing steps similarly on a second substrate formed with a second plurality of vias filled with a second plurality of metal fillings, and bonding the first substrate with the second substrate.Type: GrantFiled: February 14, 2011Date of Patent: September 9, 2014Assignee: Teledyne Scientific & Imaging, LLCInventors: Alexandros Papavasiliou, Jeffrey F. DeNatale, Philip A. Stupar, Robert L. Borwick, III
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Publication number: 20140245598Abstract: A method for fabricating a power supply converter comprises a load inductor wrapped by a metal sleeve structured to transform the inductor into a heat sink positioned to deposit layers of solder paste on a sleeve surface and on the inductor leads. A metal carrier having a portion of a first thickness and portions of a greater second thickness is placed on the solder layers of the inductor. The carrier portion of first thickness is aligned with the inductor sleeve. The carrier portions of second thickness are aligned with the inductor leads. A sync and a control FET are placed side-by-side on solder layers deposited on the carrier portion of first thickness opposite the inductor sleeve. Reflowing is preformed and the solder layers are solidified. The FETs, the carrier and the inductor become integrated and the un-soldered surfaces of the FETs and the carrier portions of second thickness become coplanar.Type: ApplicationFiled: May 12, 2014Publication date: September 4, 2014Applicant: Texas Instruments IncorporatedInventors: Juan A. Herbsommer, Osvaldo J. Lopez, Jonathan A. Noquil, David Jauregui, Lucian Hriscu
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Patent number: 8813346Abstract: A coil-type electronic component has a coil inside or on the surface of its base material and is characterized in that: the base material is constituted by a group of grains of a soft magnetic alloy containing iron, silicon and other element that oxidizes more easily than iron; the surface of each soft magnetic alloy grain has an oxide layer formed on its surface as a result of oxidization of the grain; this oxide layer contains the other element that oxidizes more easily than iron by a quantity larger than that in the soft magnetic alloy grain; and grains are bonded with one another via this oxide layer.Type: GrantFiled: April 22, 2011Date of Patent: August 26, 2014Assignee: Taiyo Yuden Co., Ltd.Inventors: Hideki Ogawa, Atsushi Tanada, Hitoshi Matsuura, Kiyoshi Tanaka, Hiroshi Kishi, Kenji Kawano
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Publication number: 20140232509Abstract: An electrostatic shield for controlling the electrostatic field between a high voltage conductor and a low voltage conductor in an instrument transformer is provided. The instrument transformer has a current transformer and a voltage transformer. The current transformer has a split core which includes a first core segment and a second core segment. When the first core segment adjoins the second core segment, a current transformer is formed, having a core formed from the first and second core segments. The high voltage conductor runs between the first and second core segments of the current transformer. The first core segment is encapsulated in a polymer resin and when encapsulated, forms a first encasement. The second core segment has a low voltage winding mounted thereon. The electrostatic shield is disposed between the low voltage winding and the high voltage conductor. A second encasement is formed by encapsulating the electrostatic shield, low voltage winding and second core segment in a polymer resin.Type: ApplicationFiled: April 12, 2012Publication date: August 21, 2014Applicant: ABB Technology AGInventors: Steven A. Shaw, Jashbhai S. Patel
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Publication number: 20140209598Abstract: Provided is a kitchenware item comprising a pot comprising a metal substrate (31), and a power supply source (7) connected to a heating electrical resistance (9) with which the pot is provided. The electrical resistance is arranged in the region of the side wall (300) of the pot: either outside the metal substrate, or embedded in said substrate, within either a moulded electroconductive metal material or a plurality of electroconductive metal layers that are interconnected, without adhesive, by deformation and/or physicochemical metal connection.Type: ApplicationFiled: July 11, 2012Publication date: July 31, 2014Applicant: SEB S.A.Inventor: Jocelyn Bonnel
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Patent number: 8789262Abstract: A method for manufacturing an inductor includes a mold device having a mold cavity, disposing a coil member above the mold cavity of the mold device, filling metallic particles into the mold cavity of the mold device, forcing the coil member into the metallic particles to form a base member, applying two conductive coating members onto the base member and electrically connecting to the terminals of the coil member respectively, and attaching two conductive coverings onto the conductive coating members respectively and electrically connecting to the conductive coating members respectively for allowing the inductors to be quickly manufactured in a mass production.Type: GrantFiled: April 18, 2012Date of Patent: July 29, 2014Assignee: Mag. Layers Scientific Technics Co., Ltd.Inventor: Chien Chih Liu
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Publication number: 20140203885Abstract: Aspects of the invention provide for a Marchand balun structure and a related design method. In one embodiment, a marchand balun structure includes: a first trace for an unbalanced port on a first metal layer, the first trace comprising: an unbalanced line including a first width for a first half and a second width for a second half, wherein the second width can be different from the first width; a pair of traces for balanced ports on a second metal layer, the pair of traces comprising: a pair of balanced lines; and a ground plane on a third metal layer, the ground plane comprising: a pair of openings directly under the pair of traces for balanced ports, wherein a center of the unbalanced line of the first trace is offset from a center of the pair of balanced lines of the pair of traces.Type: ApplicationFiled: January 18, 2013Publication date: July 24, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Hanyi Ding, Yan Ding
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Patent number: 8776359Abstract: A method of forming a motor winding wire for use in an oilfield application can include providing a conductive core; layering an insulating polymer layer about the core for electrical isolation thereof; adding an outer polymer layer about the insulating polymer layer to provide contaminant resistance; providing a sealable casing that comprises an oil-fillable space; disposing the motor winding wire within the oil-fillable space of the casing; filling the oil-fillable space with oil; and sealing the sealable casing to seal the oil in the oil-fillable space.Type: GrantFiled: March 27, 2010Date of Patent: July 15, 2014Assignee: Schlumberger Technology CorporationInventors: Joseph Varkey, Byong Jun Kim, Pete Howard
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Patent number: 8773227Abstract: The present invention is related to a method for fabricating an electromagnetic actuator. It is further related to an electromagnetic actuator and a charged particle device comprising such an actuator. According to the present invention, the method for fabricating is characterized by determining an optimal allocation of permanent magnets to reduce the magnetic stray field caused by deviations between the nominal and actual magnetization values of the permanent magnets. The invention further provides a charged particle device comprising an electromagnetic actuator fabricated using the method according to the invention.Type: GrantFiled: July 1, 2010Date of Patent: July 8, 2014Assignee: Tecnotion B.V.Inventor: Petrus Theodorus Krechting
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Patent number: 8763220Abstract: Provided is a manufacturing method for a micro device. The manufacturing method includes forming a micro-electronic-mechanical system (MEMS) movable structure, forming a plurality of metal loops over the MEMS movable structure, forming a piezoelectric element over the MEMS movable structure, and a magnet disposed over the plurality of metal loops. The method also includes encapsulating the MEMS movable structure, the plurality of metal loops, and the piezoelectric element.Type: GrantFiled: February 12, 2013Date of Patent: July 1, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Tien-Kan Chung, Chung-Hsien Lin, Yao-Te Huang, Chia-Hua Chu, Chia-Ming Hung, Wen-Chuan Tai, Chang-Yi Yang
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Publication number: 20140176278Abstract: There is provided an inductor, including a circuit board having an input and output terminal formed on a lower surface thereof, a connection pad formed on an upper surface thereof, and a via electrically connecting the input and output terminal and the connection pad, a coil having both ends joined to the connection pad and wound in a circular or a polygonal spiral shape in a longitudinal direction of the circuit board so as to have one or more turns, and a body stacked on the circuit board such that the coil and the connection pad are embedded therein.Type: ApplicationFiled: March 15, 2013Publication date: June 26, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Dong Hwan LEE, Seung Wook PARK, Christian ROMERO, Young Do KWEON, Jin Gu KIM
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Publication number: 20140176281Abstract: There is provided an electromagnetic induction module for a wireless charging element, including a laminate formed by laminating magnetic sheets, each magnetic sheet including magnetic particles and having a groove portion of a coil pattern formed in one surface thereof, and a coil disposed in the groove portion.Type: ApplicationFiled: May 7, 2013Publication date: June 26, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Chang Ryul JUNG, Dong Hyeok CHOI, Sung Yong AN
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Patent number: 8752276Abstract: A method of manufacturing a rotating electrical machine has steps of a preparation step that accommodates the cap in a jig space while bringing the jig and the pulley in contact in an up-and-down direction so that an operation space is sealed, and a main step that decompresses the operation space to pressure lower than atmospheric pressure, moves the cap to an upper side in the decompressed operation space, and press-fits the cap into the pulley. By this, an inclination and a misalignment in the axial direction of the cap by the action of the reaction force can be suppressed since the reaction force acting downwardly on the cap can be weakened compared with the case where the cap is press-fit under atmospheric pressure. Therefore, the press-fit-state of the cap can be stabilized.Type: GrantFiled: January 23, 2012Date of Patent: June 17, 2014Assignee: Denso CorporationInventors: Toshiyuki Yoshikawa, Satoru Hara
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Patent number: 8752275Abstract: The method is capable of forming stator coils in dead spaces, into which a nozzle of a wire coiling machine is inserted, and improving space factor of the coils. The method comprises the steps of: regular-winding a magnet wire in vacant longitudinal outer parts of slots alternately, without getting into spaces for inserting the nozzle of the wire coiling machine; regular-winding the magnet wire in the rest vacant longitudinal outer parts of the slots and the spaces for inserting the nozzle; regular-winding the magnet wire in vacant longitudinal inner parts of the slots alternately, without getting into spaces for inserting the nozzle; and regular-winding the magnet wire in the rest vacant longitudinal inner parts of the slots and the spaces for inserting the nozzle.Type: GrantFiled: October 21, 2011Date of Patent: June 17, 2014Assignee: Shinano Kenshi Kabushiki KaishaInventor: Nobuchika Maruyama
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Publication number: 20140159707Abstract: A magnetic field sensor assembly includes a hollow cylindrical core, conductive material and at least first and second lead wires. The hollow cylindrical core is made of ferromagnetic material and has a proximal end and a distal end. The conductive material is disposed around the hollow cylindrical core and forms at least one turn of a coil that has at least one start terminal and at least one finish terminal. The first and second lead wires pass through the center of the hollow cylindrical core and the first lead wire is connected to the start terminal thereby forming a first termination and the second lead wire is connected to the finish terminal thereby forming a second termination. The first and second terminations are positioned within the hollow cylindrical core.Type: ApplicationFiled: December 12, 2012Publication date: June 12, 2014Applicant: Ascension Technology CorporationInventor: Westley S. Ashe
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Publication number: 20140145512Abstract: There is provided a contactless power transmission device including a permanent magnet disposed at the center of a coil of a receiver in order to allow the center of the coil of the receiver and the center of a coil of a transmitter to coincide, and a coating layer formed on a surface of the permanent magnet.Type: ApplicationFiled: February 25, 2013Publication date: May 29, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kang Ryong CHOI, Ji Man RYU, Dong Hyeok CHOI, Chang Ryul JUNG, Sung Yong AN
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Patent number: 8732939Abstract: An electronic component capable of preventing the occurrence of magnetic saturation due to a magnetic flux surrounding each coil conductor and a method of manufacturing the electronic component are provided. The electronic component includes a laminate formed by stacking unit layers, where each unit layer includes a first insulating layer, and a coil conductor and second insulating layer formed on the first insulating layer. Each second insulating layer has a Ni content greater than a Ni content of each first insulating layer. Portions of the first insulating layers have a Ni content lower than a Ni content of the second portions after the laminate is calcined.Type: GrantFiled: December 20, 2011Date of Patent: May 27, 2014Assignee: Murata Manufacturing Co., Ltd.Inventor: Kiyoshi Iwai
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Patent number: 8726493Abstract: It is described a clamping system (30) of special conductors (S1, S2, S3) for a stator or rotor bar winding (U1, S1, S2, S3) for an electric machine, such as connection terminals (S1), jumpers (S2), neutrals or star points (S3), etc. The system (30) allows the special conductors (S1, S2, S3) to be clamped during a twisting step and/or a step of picking up such conductors from a twisting device (250). The system comprises a system axis (T-T), a plurality of grippers (10) aligned or able to be aligned along a circumference lying on a plane substantially perpendicular to the system axis (T-T) and actuation elements (50, 60, 70, 80, 90) of the grippers (10). Each gripper includes a pair of jaws (32, 33) mounted so as to be mobile in a plane transversal to said system axis (T-T).Type: GrantFiled: July 16, 2010Date of Patent: May 20, 2014Assignee: Tecnomatic S.p.A.Inventor: Sante Guercioni
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Patent number: 8707547Abstract: A lead-frameless power inductor and its fabrication method are disclosed. The power inductor comprises a lower substrate, a coil provided on the lower substrate, and an intermediate layer which encloses the coil, wherein the lower substrate can be a soft magnetic entrainer or a non-magnetic entrainer. The coil is made of an insulated wire, and the intermediate layer is a colloid consisting of magnetic powder. A method for fabricating the lead-frameless power inductor includes steps of preparing a lower substrate; forming a plurality of conducting metal layers on the lower substrate; forming a wire package on an upper surface of said lower substrate; coating a surface of said wire package with a magnetic powder; dividing the substrate into a plurality of granulated elements by cutting process; and forming the conducting metal layer on both sides of the element to form a surface mounting device.Type: GrantFiled: July 12, 2012Date of Patent: April 29, 2014Assignee: Inpaq Technology Co., Ltd.Inventor: Wei Chih Lee
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Publication number: 20140112044Abstract: The present invention is directed to a reactor 1 including a combined product 10 made up of a coil member 2 and a magnetic core 3, and a case 4 storing the combined product 10. The case 4 is formed by a combination of a side wall portion 41 surrounding the combined product 10 and a bottom plate portion 40 being a member separate from the side wall portion 41. Between the bottom plate portion 40 of the case 4 and the coil member 2 (coils 2a and 2b), an insulating sheet 42 is interposed. In order to fabricate the reactor 1, the insulating sheet 42 is disposed on the bottom plate portion 40, and the combined product 10 is disposed on the insulating sheet 42. Then, the side wall portion 41 is disposed from above the combined product 10, and the side wall portion 41 and the bottom plate portion 40 are engaged with each other.Type: ApplicationFiled: March 14, 2012Publication date: April 24, 2014Applicants: Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Hajime Kawaguchi, Hideo Tawara, Takahiro Onizuka, Akinori Ooishi
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Patent number: 8701272Abstract: A method of forming a power module located on a conductive substrate by providing power conversion circuitry. The method of providing the power conversion circuitry includes forming a magnetic device by placing a magnetic core proximate a conductive substrate with a surface thereof facing a conductive substrate, and placing a conductive clip proximate a surface of the magnetic core. The method of forming the magnetic device also includes electrically coupling ends of the conductive clip to the conductive substrate to cooperatively form a winding therewith about the magnetic core. The method of providing the power conversion circuitry also includes providing at least one switch on the conductive substrate. The method of forming the power module also includes depositing an encapsulant about the power conversion circuitry.Type: GrantFiled: October 5, 2005Date of Patent: April 22, 2014Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Mathew A. Wilkowski, Trifon M. Liakopoulos, John D. Weld
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Patent number: 8695208Abstract: A method for manufacturing a monolithic inductive component is provided. The method may include providing a green body comprising a green sheet composite for forming a multilayer ceramic body with an integrated winding and a shaped body of ferritic core material, the green sheet composite being combined with an encapsulation so as to create a cavity with a cavity opening between the encapsulation and the green sheet composite, and the cavity being filled with the ferritic core material through the cavity opening; and heat-treating the green body, a multilayer ceramic body with an integrated winding being created from the green sheet composite and a magnetic core comprising the ferritic core material being created from the green sheet composite.Type: GrantFiled: June 18, 2008Date of Patent: April 15, 2014Assignee: Siemens AktiengesellschaftInventor: Richard Matz
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Publication number: 20140090235Abstract: A coil component includes a core formed by a magnetic material, a coil embedded in the core, a part of a terminal portion of the coil protruded from a side surface of the core, and a tabular terminal, a part thereof protruded from the side surface of the core and partly connected with the protruded part of the terminal portion of the coil. The protruded part of the terminal portion of the coil and the protruded part of the tabular terminal are respectively bent toward the bottom surface side of the core along the side surface of the core, and the protruded and bent part o the terminal portion of the coil is arranged between the protruded and bent part of the tabular terminal and the core.Type: ApplicationFiled: December 9, 2013Publication date: April 3, 2014Applicant: SUMIDA CORPORTIONInventors: Satoru Yamada, Yoshiyuki Hatayama
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Patent number: 8683675Abstract: Provided is a method for fabricating a molded stator of a rotary electric machine, the method comprising: a lamination step of laminating a plurality of core sheets each having a plurality of core pieces connected to one joining portion via bridge portions, thereby forming a divided-laminated-core group structure; a winding step of winding a coil on a teeth portion of each divided laminated core of the divided-laminated-core group structure; a cutting step of cutting the bridge portions, thereby separating the divided laminated cores wound with the coils; a temporary fixing step of temporarily fixing the divided laminated cores circularly arranged to form a stator; and a molding step of placing, in a mold, the stator into which a mold mandrel is inserted along the inner circumferential surface, and molding an outer circumferential surface of the stator with resin.Type: GrantFiled: November 19, 2009Date of Patent: April 1, 2014Assignee: Mitsubishi Electric CorporationInventors: Masahiro Yuya, Nobuaki Miyake, Yuji Nakahara, Haruyuki Hasegawa, Takenori Aomi, Fumiaki Tsuchiya, Ryoko Komaki
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Patent number: 8677608Abstract: An annular core member having an opening portion located at a position rotated by 90 degrees from a reference position, where the opening portion is oriented in the counterclockwise direction, and an annular core member having the opening portion located at the reference position, where the opening portion is oriented in the clockwise direction, are prepared to form an iron core by a rotary lamination apparatus by rotating the annular core members and by a predetermined angle (90 degrees) such that a first end, in the annular core member, which is at the position rotated by 90 degrees from the reference position and has no rotation uneven part, is circumference-positionally identical in the laminating direction with that of a fourth end, in an annular core member, which is at the reference position and has no rotation uneven part.Type: GrantFiled: July 24, 2008Date of Patent: March 25, 2014Assignee: Mitsubishi Electric CorporationInventors: Hiroyuki Akita, Kimiyasu Furusawa
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Publication number: 20140075744Abstract: A method and arrangement for pressing of windings assembled onto a transformer. The method includes applying pressing force on the windings, and controlling the pressing force on the windings during drying of transformer active part. Thus, before the drying process commences, the windings are assembled onto the transformer core and a pressing force is applied to the windings assembled onto a respective transformer core limb, wherein an individual pressing force is applied to the respective winding. This individual pressing force applied to the respective winding is then controlled during the process of drying the transformer active part. The windings will as a result advantageously be effectively compressed onto the core and stabilized.Type: ApplicationFiled: November 27, 2013Publication date: March 20, 2014Inventors: Jan Anger, Uno Gafvert, Orlando Girlanda, David Goeransson, Zdenko Cabrajic
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Patent number: 8671555Abstract: Firstly, a flat conductor raw wire is formed in a rectangular cross-section and bent in a continuous meandering pattern in a same plane to include in-slot wire portions arranged in each slot of the stator core, coil-end wire portions arranged as a coil end outside the slots, and bent portions joining the in-slot wire portions and the coil-end wire portions. Thereafter, in a setting step, the bent portions located at the opposite ends of the in-slot wire portion are grasped by a pair of grasping tools and the in-slot wire portion is grasped by a twisting jig. Next, in a processing step, the bent portions are twisted and bent into crank-shape by displacing a predetermined axis to a predetermined direction while rotating the twisting jig about the axis. The flat conductor is obtained by performing the setting step and the processing step each of the in-slot wire portions.Type: GrantFiled: September 30, 2009Date of Patent: March 18, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideki Kamatani, Kazuhiro Sato
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Method for producing stator or rotor with interlaced wire groups forming an intertwined wave winding
Patent number: 8667666Abstract: The disclosed method produces a stator or rotor having a distributed wave winding, in which the wires are associated in pairs lying with straight segments in the same slots. Head portions of two successive straight segments of each wire of a pair protrude from opposite ends of slots. For forming two wire groups, a plurality of coil windings are simultaneously created by winding up n parallel wires with intermediate spacing onto a striplike former that is rotatable about its longitudinal axis. From each of the parallel wires one straight segment and one end turn are doubled by being bent over with the wire length of a head portion, and then head portions are formed and the wires interlaced. Finally, the two wire groups are wound onto one another and thereby intertwined with one another, and then introduced as an entire intertwined wave winding strand into the stator or rotor slots.Type: GrantFiled: April 14, 2009Date of Patent: March 11, 2014Assignee: Elmotec Statomat Vertriebs GmbHInventors: Sadik Sadiku, Keith A. Witwer -
Publication number: 20140062189Abstract: A ferroresonant transformer is adapted to be connected to a primary power source, an inverter system, and a resonant capacitor. The ferroresonant transformer comprises a core, a main shunt arranged to define a primary side and a secondary side of the ferroresonant transformer, first windings arranged on the primary side of the ferroresonant transformer, second windings arranged on the secondary side of the ferroresonant transformer, and third windings arranged on the secondary side of the ferroresonant transformer. The first windings are operatively connected to the primary power source.Type: ApplicationFiled: November 4, 2013Publication date: March 6, 2014Applicant: Alpha Technologies Inc.Inventors: Thanh Le, James Richardson, Litcho Datzov
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Patent number: 8661651Abstract: The rotary electric machine includes a rotor, and a stator including an stator core that is formed by laminating and integrating magnetic steel plates, and concentrated winding coils that are mounted to respective teeth, the stator being disposed so as to surround the rotor. Bobbins each including a trunk portion and first and second guide portions that are disposed so as to protrude from two longitudinal ends of an upper surface of the trunk portion are disposed so as to place bottom surfaces of the trunk portions alongside two axial end surfaces of the teeth. The concentrated winding coils are configured by winding a conductor wire a predetermined number of times around the teeth so as to pass through a concave space that is formed by the trunk portions and the first and second guide portions at two axial ends of the teeth.Type: GrantFiled: February 16, 2012Date of Patent: March 4, 2014Assignee: Mitsubishi Electric CorporationInventors: Hironori Tsuiki, Yukinobu Karata, Shinichiro Yoshida, Hiroyuki Akita, Masaya Inoue
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Patent number: 8661654Abstract: A method for manufacturing a spiral coil, the method including: forming a solenoid having a diameter larger than a length by spirally winding an insulated electric wire; forming a spiral coil having folded corners by folding four corners in a circumference direction with respect to the solenoid; fixing the folded corners of the spiral coil; and fixing two terminal portions corresponding to start and end points of the spiral coil to a fixing module. According to the method, a thin and long spiral coil having folded corners is easily manufactured by using a general insulated electric wire. In addition, the spiral coil manufactured by using such a method is applicable to a surface radio frequency (RF) coil optimized for various applications of an electro-magnetic acoustic transducer (EMAT) and enables easy access to an optimized transducer.Type: GrantFiled: June 24, 2009Date of Patent: March 4, 2014Assignee: Industry-Academic Cooperation Foundation, Yeungnam UniversityInventors: Myoung Seon Choi, Sung Joon Kim, Won Nyoung Heo
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Patent number: 8650742Abstract: The application relates to a process for preparing a crosslinked cable, including: —applying one or more layers including a polymer composition on a conductor, wherein at least one layer includes one or more free radical generating agents, —crosslinking by radical reaction said at least one layer including said free radical generating agent(s), —cooling the obtained crosslinked cable in pressurized conditions, and —reducing or removing the content of volatile decomposition products(s), which are originating from optionally in elevated temperature, from the crosslinked cable obtained from cooling and recovery step.Type: GrantFiled: July 10, 2008Date of Patent: February 18, 2014Assignee: Borealis Technology OyInventor: Annika Smedberg
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Publication number: 20140043118Abstract: According to an illustrative embodiment, a switching device structure is provided comprising a cavity defined by a laminated structure; and a moveable member comprising a plurality of laminated layers, wherein the moveable member is suspended from a side surface of the cavity by a hinge comprising a plurality of adjacent electrical conductors. In one embodiment, a current conducting coil is formed within the moveable member, and first and second of the adjacent electrical conductors of the hinge respectively comprise coil-in and coil-out conductors electrically connected to the coil. In such an embodiment, the third and fourth of said electrical conductors may respectively comprise tip and ring conductors. In illustrative embodiments, each of the electrical conductors of the hinge may comprise a resilient or flexible copper material.Type: ApplicationFiled: April 24, 2013Publication date: February 13, 2014Inventors: William C. Page, Lawrence DiFrancesco, Dain P. Bolling, David P. Paturel
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Publication number: 20140028302Abstract: An eddy current probe is constructed with four coils in a wheatstone bridge configuration.Type: ApplicationFiled: July 25, 2012Publication date: January 30, 2014Applicant: General Electric CompanyInventor: Matthew Barton Wolf
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Patent number: 8631560Abstract: A method of forming a magnetic device by providing a conductive substrate and placing a magnetic core proximate the conductive substrate with a surface thereof facing the conductive substrate. The method also includes placing a conductive clip proximate a surface of the magnetic core and electrically coupling ends of the conductive clip to the conductive substrate to cooperatively form a winding therewith about the magnetic core.Type: GrantFiled: October 5, 2005Date of Patent: January 21, 2014Assignee: Enpirion, Inc.Inventors: Ashraf W. Lotfi, Mathew A. Wilkowski, Trifon M. Liakopoulos, John D. Weld
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Patent number: 8621744Abstract: A method of manufacturing an inductor for a microelectronic device comprises providing a substrate (610), forming a first plurality of inductor windings (111, 211, 411, 620, 2030) over the substrate, forming a magnetic inductor core (112, 212, 412, 810) over the first plurality of inductor windings, and forming a second plurality of inductor windings (113, 213, 413, 1010) over the magnetic inductor core. In another embodiment, the method comprises forming the inductor on a sacrificial substrate (1610) such that the inductor can subsequently be mounted onto a carrier tape (1810). In yet another embodiment, a method of manufacturing a substrate for a microelectronic device comprises forming an inductor within a build-up layer (101, 102, 103, 104) of a substrate.Type: GrantFiled: August 23, 2011Date of Patent: January 7, 2014Assignee: Intel CorporationInventors: Aleksandar Aleksov, Gloria Alejandra Camacho-Bragado
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Publication number: 20140002227Abstract: A magnetic device comprises a lead frame, a first core body and a coil. The lead frame has a first portion and a second portion spaced apart from the first portion. A first core body is disposed on the lead frame, wherein the first core body comprises a first through opening and a second through opening. A coil is disposed on the first core body, wherein the coil has a first terminal and a second terminal, wherein the first portion is electrically connected with the first terminal via the first through opening, and the second portion is electrically connected with the second terminal via the second through opening, respectively.Type: ApplicationFiled: May 28, 2013Publication date: January 2, 2014Applicant: CYNTEC CO., LTD.Inventors: Roger Hsieh, Cheng-Chang Lee, Chun-Tiao Liu, Yi-Min Huang, Chih-Siang Chuang