Ventilating Passages (e.g., By Coil Section Or Core Part Spacers) Patents (Class 336/60)
  • Patent number: 10581643
    Abstract: Systems for power over data line applications with low mode conversion are described. For example, an apparatus may include a magnetic core; a first conductive coil wound in a first winding direction around the magnetic core; a second conductive coil wound in a second winding direction around the magnetic core; a first conductive lead connecting a first end of the first conductive coil to a first pin; a second conductive lead connecting a second end of the first conductive coil to a second pin; a third conductive lead connecting a first end of the second conductive coil to a third pin, wherein lengths of the first conductive lead and the third conductive lead are equal; and a fourth conductive lead connecting a second end of the second conductive coil to a fourth pin, wherein lengths of the second conductive lead and the fourth conductive lead are equal.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Apple Inc.
    Inventors: Abhilash Rajagopal, Paul A. Baker, Neven Pischl
  • Patent number: 9679692
    Abstract: Provided is a reactor device which is inexpensive, has high heat radiation and with which there is a high degree of freedom when positioning the transformer core. A heat-radiating plate (105) of U-shaped cross section is contacted onto an upper face and both side faces of an upper part E core (102) forming a transformer (101) upper part, and a transformer (101) provided with the heat-radiating plate (105) is housed from one face which is open of a reactor case (106), and a potting resin material is charged into the gap between the transformer (101) and the reactor case (106) until a lower edge part of the heat-radiating plate (105) is submerged. The reactor case (106) housing the transformer (101) is installed and secured onto a base providing a cooling mechanism.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: June 13, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGMENT CO., LTD.
    Inventors: Atsushi Yamashima, Yuuji Yamaguchi
  • Patent number: 9601255
    Abstract: In an amorphous core transformer, an amorphous core is constructed such that, when a plurality of kinds of amorphous magnetic strips having different widths are arranged in abutting relation and laminated, the amorphous magnetic strips are alternated in arrangement for lamination so that abutting surfaces of the arranged and laminated amorphous magnetic strips are displaced with respect to one another. Thus, hours of wrapping work are drastically reduced and working efficiency is improved.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: March 21, 2017
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Keisuke Kubota, Toshiki Shirahata, Junji Ono, Yoetsu Shiina
  • Patent number: 9576709
    Abstract: A transformer is provided having a stacked core with a pair of outer legs extending between a pair of yokes. The core is arranged in a plurality of layers. Each of the layers includes a pair of yoke plates and a pair of outer leg plates. In an inner-most layer, the width of each yoke plate is less than the width of each outer leg plate. In each of the layers, the inner points of the outer leg plates are substantially in contact with the yoke plates. The cross-section of the inner leg and the outer legs may be rectangular or cruciform.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: February 21, 2017
    Assignee: ABB SCHWEIZ AG
    Inventors: Charlie Sarver, William E. Pauley, Jr.
  • Patent number: 9466415
    Abstract: A reactor provided with a cooler, comprising: a coil, a core formed of a soft magnetic material, the core covers an inside of the coil and an outer periphery of the coil; the cooler being arranged on both sides of the core, the core and the cooler being pressed in a stacking direction of the core and the cooler; a thickness of the core in the stacking direction being smaller than a length of a height of a surface of the core that faces the stacking direction; and the thickness of the core in the stacking direction being smaller than a length of a width of the surface of the core that faces the stacking direction.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: October 11, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mao Nobusaka, Takashi Atsumi
  • Patent number: 9466409
    Abstract: An electrical insulation system for a high voltage inductive device includes a cylindrical insulation barrier defining an axial direction, a longitudinal bar having a main extension in the axial direction, the longitudinal bar arranged to support the cylindrical insulation barrier along the axial direction and to provide spacing in a radial direction, and the longitudinal bar having a first side facing the cylindrical insulation barrier and a second side, opposite the first side, having a groove, and a spacer having a main extension in the radial direction, the spacer being arranged to provide spacing in the axial direction, the spacer having a groove fitting end portion. The longitudinal bar is adapted to receive the groove fitting end portion of the spacer in the groove, and wherein the spacer is dimensioned so relative to the groove that the groove captures any streamer propagating from the spacer towards the cylindrical insulation barrier.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: October 11, 2016
    Assignee: ABB Schweiz AG
    Inventors: Anders Bo Eriksson, Uno Gäfvert, Josë-Luis Del Real, Jan Hajek
  • Patent number: 9437356
    Abstract: The invention concerns a medium frequency transformer with a housing, in which numerous winding chambers, having primary and secondary windings, are disposed, wherein the housing is filled, at least partially, with an insulating liquid. The transformer is distinguished in that numerous winding chambers, filled with the insulating liquid, are disposed in the housing, and at least one winding is disposed in each winding chamber, such that, for the most part, only the windings are surrounded by the insulating medium. Preferably the winding chambers are sealed and separated from one another by means of insulating separating walls, wherein the windings are positioned and fixed in place in the winding chambers, and the winding chambers are filled with the insulating liquid. Between the windings there are thus, according to the invention, at least two insulating barriers, which function simultaneously and consist of solid matter insulation in the form of housing and separating walls, and the insulating liquid.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: September 6, 2016
    Assignee: STS Spezial-Transformatoren-Stockach GmbH & Co. KG
    Inventors: Wilhelm Krämer, Christoph Gulden
  • Patent number: 9355774
    Abstract: The embodiments disclosed herein relate generally to magnetic resonance imaging systems and, more specifically, to the manufacturing of a gradient coil assembly for magnetic resonance imaging (MRI) systems. For example, in one embodiment, a method includes ultrasonically consolidating a plurality of sheets of a conductive material to form a consolidated structure and machining one or more conductive channels into the consolidated structure to form an inductor.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 31, 2016
    Assignee: General Electric Company
    Inventors: Jean-Baptiste Mathieu, Yanzhe Yang, Bruce Courtney Campbell Amm, Silke Maria Lechner-Greite
  • Patent number: 9289866
    Abstract: A compact, portable resistance heating device that takes a source of alternating current electricity and through a series of connections and circuitry splits the alternating current electricity into a plurality of circuits. The compact, portable resistance heating device is capable of heating a plurality of cartridge heaters at one time, individually or a combination thereof. The compact, portable resistance heating device is controlled by at least one controller that controls three (3) power output receptacles. The controller is capable of producing 0-100% output power to each respective cartridge heater. Each cartridge heater may be individually controlled by an on/off switch, and an indicator light may be provided and illuminate when each cartridge heater is energized. The cartridge heaters of the compact, portable resistance heating device do not require close tolerances with an axial bore of a stud or threaded bolt and are further capable of being bent to suit the particular operation.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: March 22, 2016
    Assignee: Xtreme Bolting Service, Inc.
    Inventors: Jody Lynn Keihle, Thomas William Decker
  • Patent number: 9281098
    Abstract: A dry type electrical insulation is provided. The insulation includes a base fiber having an outer surface and a first melting point and a binder material, coated onto the outer surface of the base fiber, having a second melting point. In this insulation, the second melting point is lower than the first melting point. A dry type insulation matrix is also provided. The insulation matrix includes a plurality of composite fibers having a base fiber having a first melting point and a binder material co-extruded therewith, having a second melting point. In this insulation matrix, the second melting point is lower than the first.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 8, 2016
    Assignee: Waukesha Electric Systems, Inc.
    Inventors: Thomas M. Golner, Shirish P. Mehta, H. Jin Sim
  • Patent number: 9208939
    Abstract: At least two winding modules nested hollow-cylindrically one inside the other and extending around a common winding axis, wherein said winding modules are spaced radially apart from one another within at least one hollow-cylindrical cooling channel arranged therebetween by means of insulation strips, wherein the insulation strips have a cross-sectional form which avoid a surface profile radially with respect to the winding axis, the insulation strips including one of a fiber-reinforced epoxy, polyester resin, or from an unreinforced thermoplastic material.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 8, 2015
    Assignee: ABB TECHNOLOGY AG
    Inventors: Benjamin Weber, Bhavesh Patel, Burak Esenlik, Frank Cornelius, Marcos Bockholt, Jens Tepper
  • Patent number: 9142349
    Abstract: A method for achieving converter transformer for suppressing DC bias magnet comprises increasing the seaming width of the transformer core lamination, which comprises in detail calculating the width and the height of each stage of lamination according to the reserved seaming width of the lamination, the sectional area of the core, the space between columns, and the height of the window, shearing the lamination based on the width and the height of the lamination obtained by calculating, overlapping two pieces of laminations into one piece of lamination according to the order of stages, placing them on the core frame alternately by stages, and after overlapping all the laminations, fastening each stage of lamination.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: September 22, 2015
    Assignee: TBEA SHENYANG TRANSFORMER GROUP CO., LTD.
    Inventors: Jian Wang, Guiping Li, Yong Sun, Zhikai Ma
  • Patent number: 9129738
    Abstract: An oil-filled transformer switching frame is disclosed which includes at least one longitudinal channel element that is essentially formed by a wall that is curved in a U-shaped manner, for receiving in its inner region stranded conductors of an oil tank of an oil transformer. The wall of the channel element can include a first layer of mechanically strong, planar insulating material and a second layer of mechanically strong, planar insulating material that is adjacent to and fundamentally parallel to said first layer, the first layer and the second layer being connected to and spaced apart by a third layer of a mechanically strong, corrugated insulating material having hollow spaces that can be flooded with a fluid by way of lateral edges.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: September 8, 2015
    Assignee: ABB TECHNOLOGY AG
    Inventors: Hartmut Brendel, Matthias Starke, Marikka Hübner, Ralf Büchner, Klaus Herkert, Isidoro Li Pira
  • Patent number: 9099237
    Abstract: Cooling systems include a first passageway forming member that includes first and second ends and at least one connecting recess that opens into first and second passageways formed by the first passageway forming member. A second passageway forming member includes first and second ends and inlet and outlet ports proximate the first end such that the first end, including an elastomeric seal and the inlet and outlet ports, is sealably insertable in and removable from the at least one connecting recess, where the inlet port opens into the first passageway and the outlet port opens into the second passageway, and where, when the first end is inserted in the at least one connecting recess, the elastomeric seal is sandwiched between and in substantial contact with both the first end and the first passageway forming member.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: August 4, 2015
    Assignee: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
    Inventors: John A. Balcerak, Jeremy J. Keegan, William K. Siebert, Neil Gollhardt, Scott D. Day
  • Patent number: 9076582
    Abstract: A bobbin can be used for a magnetic component. The magnetic component includes at least one coil, and the coil includes at least one pin. The bobbin includes a body and a pin holder. The body includes a winding part and two plates. The winding part is used for winding the coil. The plates are respectively disposed on the opposites of the winding part. The pin holder is disposed on one of the plates, and it includes at least one locating hole for inserting the pin.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: July 7, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chia-Ming Liu, Ming-Cheng Lee, Yi-Lin Chen, Po-Yu Wei, Chih-Ming Chen, Cheng-En Liao, Wei-Chin Chen
  • Patent number: 9073145
    Abstract: An impeder for use in an electric induction welding process is provided. A cooling medium is circulated around the exterior of the impeder's magnetic material with the impeder entry and exit passages for the cooling medium located on opposite sides of the impeder.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: July 7, 2015
    Assignee: Inductotherm Corp.
    Inventors: Paul F. Scott, Michael A. Nallen, Oleg S. Fishman, John H. Mortimer
  • Patent number: 9062704
    Abstract: A compact, portable resistance heating device that takes a source of alternating current electricity and through a series of connections and circuitry splits the alternating current electricity into a plurality of circuits. The compact, portable resistance heating device is capable of heating a plurality of cartridge heaters at one time, individually or a combination thereof. The compact, portable resistance heating device is controlled by at least one controller that controls three (3) power output receptacles. The controller is capable of producing 0-100% output power to each respective cartridge heater. Each cartridge heater may be individually controlled by an on/off switch, and an indicator light may be provided and illuminate when each cartridge heater is energized. The cartridge heaters of the compact, portable resistance heating device do not require close tolerances with an axial bore of a stud or threaded bolt and are further capable of being bent to suit the particular operation.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: June 23, 2015
    Assignee: Xtreme Bolting Service, Inc.
    Inventors: Jody Lynn Keihle, Tom William Decker
  • Patent number: 9046211
    Abstract: A mechanical support for thermal or electric systems. The support is hollowed, and includes two bearing surfaces, substantially parallel to each other, and separated from each other by a lateral surface defining a perimeter. The lateral surface includes through openings, distributed along at least one row substantially parallel to the bearing surfaces. The support includes at least one stiffening flange, in contact with the lateral surface of the support, all along the perimeter of the lateral surface, on or in the vicinity of the or of each row of through openings.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: June 2, 2015
    Assignee: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventor: Romain Berthier
  • Patent number: 9048015
    Abstract: A high-temperature superconductor (HTS) coil includes a coil winding with a superconducting material and a coil former for carrying the coil winding. When the high-temperature supercon-ductor (HTS) coil cools down from a room temperature to an operating temperature, the coil winding or the coil former counteract a thermal shrinkage of the coil winding in order to avoid or reduce a longitudinal compression of the superconducting material of the coil winding.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: June 2, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Wolfgang Nick, Marijn Pieter Oomen
  • Patent number: 9041501
    Abstract: The disclosure relates to an amorphous transformer core including at least one transformer core disc with a plurality of layers of strip-like amorphous core material arranged concentrically around at least one winding window. At least one heat dissipating plate extends into an interior of the amorphous transformer core and is fed from there into at least one heat exchange region outside the amorphous transformer core. This can enhance dissipation of heat energy which is produced inside the amorphous transformer core.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: May 26, 2015
    Assignee: ABB TECHNOLOGY AG
    Inventors: Martin Carlen, Marcos Bockholt, Benjamin Weber
  • Publication number: 20150137925
    Abstract: According to one embodiment, a contactless power transfer transformer includes a both-sides wound coil. The both-sides wound coil includes an inter-magnetic-pole core portion between two magnetic pole portions. The winding wire is wound around a wound region of the inter-magnetic-pole core portion. The inter-magnetic-pole includes: a plurality of separate magnetic members that connect to each of the two magnetic pole portions, and are arranged with a spacing therebetween and in parallel with each other; and a heat conductor that is alternately arranged with respect to the separate magnetic members on a plane formed by the separate magnetic members so as to be in contact with the separate magnetic members. Heat generated by the separate magnetic members is guided to the outside of the wound region of the inter-magnetic-pole core portion through the heat conductor, and is dissipated.
    Type: Application
    Filed: June 5, 2013
    Publication date: May 21, 2015
    Applicant: TECHNOVA INC.
    Inventors: Shigeru Abe, Yasuyoshi Kaneko, Tomio Yasuda
  • Patent number: 9024713
    Abstract: Methods and devices for an extreme duty transformer with wet wound primary and secondary winding encapsulated with a resin and having corrugated insulating material as cooling ducts as a transformer capable of withstanding extreme mechanical stresses in an underground mining environment. The method includes providing a resin impregnated rectangular winding form, forming a secondary winding with alternating layers of magnet wire with a resin impregnated insulating collar above and below the magnet wire and corrugated insulating material extending the full or partial circumference and width of the coil. An insulating layer of corrugated material and resin impregnated insulation is wound to separate the primary from the secondary windings.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 5, 2015
    Assignee: Power Distribution Products, Inc.
    Inventor: Kurt Carlson
  • Publication number: 20150109081
    Abstract: A transformer comprises a core of magnetic permeable material. A first coil assembly extends around the core and includes a first coil of wire encased in a first body of electrical insulating material. The first body is annular with a first inner surface and a first outer surface with a first plurality of fins projecting from the first inner surface. A second coil assembly extends around the first coil assembly and includes a second coil encased in a second body of electrical insulating material. The second body is annular with a second inner surface and a second outer surface with a second plurality of fins projecting from the second outer surface. A third plurality of fins projects from either the first outer surface of the first body or the second inner surface of the second body.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 23, 2015
    Applicant: Hammond Power Solutions, Inc.
    Inventor: Dhiru S. Patel
  • Publication number: 20150097644
    Abstract: A magnetic device includes an electrically insulating body and a conductor coil. The insulating body defines an internal cavity for a magnetic device core and a coolant channel routed about the internal cavity. The conductor coil extends through the insulating body and winds about the internal cavity. The electrically insulating body electrically insulates the internal cavity and coolant channel from the conductor coil.
    Type: Application
    Filed: February 19, 2014
    Publication date: April 9, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Charles Shepard, Eric Karlen
  • Patent number: 8952777
    Abstract: A transformer winding, having at least two multi-layered winding modules, which are connected electrically in series, extend about a common winding axis, and are nested one inside the other hollow-cylindrically, at least one cooling channel, which is arranged along the common winding axis hollow-cylindrically between the winding modules, and a flat electrical shield is provided within the at least one cooling channel at least sectionally along the radial circumference thereof, wherein the electrical shield extends over approximately the entire axial length and through which electrical shield the electrical capacitance distribution in the transformer winding connected electrically in series is influenced.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: February 10, 2015
    Assignee: ABB Technology AG
    Inventors: Benjamin Weber Weber, Bhavesh Patel, Burak Esenlik, Frank Cornelius, Marcos Bockholt, Jens Tepper
  • Patent number: 8928444
    Abstract: A cooling structure for a magnet-equipped reactor includes: a magnet-equipped reactor (60) having a core (61) around which a coil (70) is wound, and a magnet (75) arranged to contact the core (61); and a cooling member (51) arranged to contact the magnet (75) of the magnet-equipped reactor (60) to cool the magnet (75).
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: January 6, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Naohiro Kido, Toshiyuki Maeda
  • Patent number: 8902034
    Abstract: The invention comprises a phase change inductor cooling system. The cooling system uses a non-conductive refrigerant in proximate and/or in direct contact with an inductor. Heat from the inductor changes the refrigerant from a liquid to a gas phase, which removes heat from the inductor. The gas phase refrigerant is subsequently removed from the inductor to remove heat from the environment about the inductor. The refrigerant is optionally recirculated using the steps of condensing and/or compressing the refrigerant prior to reintroduction into the environment proximate and/or in direct contact with the inductor.
    Type: Grant
    Filed: May 12, 2012
    Date of Patent: December 2, 2014
    Inventor: Grant A. MacLennan
  • Publication number: 20140313679
    Abstract: The invention relates to a heavy-current transformer (12), in particular for a power source (10) in order to provide a welding current of a resistance welding device (1), with at least one primary winding (13) and at least one secondary winding (14) with center tapping, and to a transformer element, a contact plate (29) and a secondary winding (14) for such a heavy-current transformer (12) as well as a method for the manufacturing thereof. For reduction of losses and improvement of efficiency, at least four contacts (20, 21, 22, 23) are provided to form a multi-point contacting, said contacts (20, 21, 22, 23) being formed by four contact faces within which the at least one primary winding (13) and the at least one secondary winding (14) are arranged in a series/parallel connection.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 23, 2014
    Applicant: FRONIUS INTERNATIONAL GMBH
    Inventors: Bernhard Artelsmair, Christoph Schultschik, Johannes Neuboeck, Stefan Wolfsgruber
  • Publication number: 20140216344
    Abstract: In large area plasma processing systems, process gases may be introduced to the chamber via the showerhead assembly which may be driven as an RF electrode. The gas feed tube, which is grounded, is electrically isolated from the showerhead. The gas feed tube may provide not only process gases, but also cleaning gases from a remote plasma source to the process chamber. The inside of the gas feed tube may remain at either a low RF field or a zero RF field to avoid premature gas breakdown within the gas feed tube that may lead to parasitic plasma formation between the gas source and the showerhead. By feeding the gas through an RF choke, the RF field and the processing gas may be introduced to the processing chamber through a common location and thus simplify the chamber design.
    Type: Application
    Filed: April 10, 2014
    Publication date: August 7, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Jozef KUDELA, Carl A. SORENSEN, John M. WHITE
  • Publication number: 20140210124
    Abstract: A coil for a transformer includes first and second coil segments with each coil segment being defined by successive layers of wound conductor sheeting. The coil segments are electrically connected together and are adjacent, defining a space therebetween. A plurality of cooling duct pairs are disposed between certain of the layers in each of the first and second coil segments such that, for each cooling duct pair, an end of a cooling duct disposed in the first coil segment is adjacent to an end of a cooling duct disposed in the second coil segment, with the ends being disposed in the space. A connector connects the adjacent ends of each pair of cooling ducts.
    Type: Application
    Filed: May 9, 2012
    Publication date: July 31, 2014
    Applicant: ABB TECHNOLOGY AG
    Inventors: Charlie H. Sarver, William E. Pauley
  • Publication number: 20140184372
    Abstract: The embodiments disclosed herein relate generally to magnetic resonance imaging systems and, more specifically, to the manufacturing of a gradient coil assembly for magnetic resonance imaging (MRI) systems. For example, in one embodiment, a method includes ultrasonically consolidating a plurality of sheets of a conductive material to form a consolidated structure and machining one or more conductive channels into the consolidated structure to form an inductor.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jean-Baptiste Mathieu, Yanzhe Yang, Bruce Courtney Campbell Amm, Silke Maria Lechner-Greite
  • Patent number: 8766755
    Abstract: A transformer and a liquid crystal display apparatus having the transformer are provided. The transformer includes a bobbin having at least one first winding section, at least one second winding section, and at least one core insertion groove formed therein. The transformer also includes at least one coil wound around the first winding section and the second winding section with at least one core inserted into the core insertion groove.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: July 1, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Gun Lee, Moon-Shik Kang, Timothy Su, Ju-Hyun Lee
  • Publication number: 20140176271
    Abstract: An apparatus (e.g., an inductor system) includes an elongate magnetic core, at least one coil wrapped around the magnetic core and a spacer configured to separate an inner side of the at least one coil from the magnetic core to provide a coolant passage between the inner side of the at least one coil and the magnetic core. The apparatus further includes at least one flux concentrator body positioned on an outer side of the at least one coil and configured to concentrate a magnetic flux on the outer side of the at least one coil. In some embodiments, the apparatus includes a frame configured to support the magnetic core, the at least one coil and the at least one flux concentrator body. In further embodiments, the at least one flux concentrator body may be mounted on at least one wall of an enclosure or chassis.
    Type: Application
    Filed: March 8, 2013
    Publication date: June 26, 2014
    Applicant: Eaton Corporation
    Inventors: George W. Oughton, JR., Larry V. Lynam, Thomas A. Wallace
  • Patent number: 8742876
    Abstract: The disclosure relates to a transformer coil which can be cooled by a heat pipe and has a primary winding and a secondary winding and relates to a transformer which is formed from transformer coils which can be cooled in this way. The heat from the transformer coil is dissipated by the heat pipe. The evaporator of the heat pipe is arranged in the area of the windings and forms at least one extensive evaporator segment, which extends in the circumferential direction of the windings and along the winding axis of the transformer coil and in the process covers a multiplicity of the turns of the secondary winding.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: June 3, 2014
    Assignee: ABB Technology AG
    Inventors: Daniel Chartouni, Rafael Murillo, Tilo Bühler
  • Publication number: 20140132380
    Abstract: An apparatus includes a coil assembly, a core, and at least one cooling channel. The coil assembly includes at least one winding configured to receive a varying electrical current. The core includes multiple segments, and the at least one winding is wound around portions of the segments and is configured to generate a magnetic flux. The at least one cooling channel is configured to transport coolant through the coil assembly or core in order to cool the coil assembly or core. Portions of the segments of the core can be separated from one another to form multiple cooling channels through the core, and the multiple cooling channels can be configured to transport coolant through the core. The coil assembly may include at least one insulative spacer having multiple cooling channels, and the multiple cooling channels may be configured to transport coolant through the coil assembly.
    Type: Application
    Filed: November 13, 2012
    Publication date: May 15, 2014
    Applicant: Raytheon Company
    Inventor: Raytheon Company
  • Publication number: 20140132381
    Abstract: A dry-type transformer for mobile applications includes a transformer core, at least one radially inner first winding segment, and at least one radially outer, second hollow cylindrical winding segment. The segments are wound around a common winding axis and the transformer core passes therethrough. The segments are nested inside one another and radially spaced apart from one another, such that a hollow cylindrical cooling duct is formed therebetween. Spacing is achieved by spacer elements arranged such that the cooling duct allows a passage of coolant in an axial direction. The spacer elements are formed and arranged along the radial circumference of the cooling duct over the axial length thereof such that the proportionate weight of the horizontal transformer can be borne on at least one contact surface of the at least second winding segment without causing deformation to the cooling duct.
    Type: Application
    Filed: January 17, 2014
    Publication date: May 15, 2014
    Applicant: ABB Technology AG
    Inventors: Benjamin WEBER, Michael Luckey, Wolfgang MÖNIG, Marcos Bockholt
  • Patent number: 8717133
    Abstract: A reactor including an assembly of a coil, a magnetic core on which the coil is disposed, and a case that houses the assembly. The case includes an installation face, a side wall that is removably attached to the installation face and surrounds the periphery of the assembly, and a heat dissipation layer formed on the inner face of the installation face and interposed between the installation face and the installation-side face of the coil. The installation face consists of aluminum, the side wall consists of an insulating resin, and the heat dissipation layer consists of an adhesive with high thermal conductivity and excellent insulation. The installation face is separate from the side wall, making it easy to form the heat dissipation layer, and having excellent heat dissipation. The side wall consists of an insulating resin, thus reducing the gap between it and the coil.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 6, 2014
    Assignees: Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Akinori Ooishi, Hiromi Yabutani, Takahiro Onizuka, Takayuki Sano, Atsushi Ito, Shinichiro Yamamoto, Hajime Kawaguchi
  • Patent number: 8680959
    Abstract: An immersion cooled inductor includes an inductor at least partially submerged in cooling liquid and a localized boiling feature operable to instigate boiling of the cooling liquid prior to oversaturation.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: March 25, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Robert Scott Downing
  • Publication number: 20140062634
    Abstract: The present invention provides a transformer having assembled bobbins and a voltage transformation module having the transformer. The transformer includes a base, bobbins, secondary windings and two magnetic cores. The base is provided with a penetration hole. The bobbins are disposed in the base and each has an annular groove, a hollow portion corresponding to the penetration hole, and protrusions formed on a surface of the bobbin. The protrusions form a gap between the two adjacent bobbins when the two adjacent bobbins are assembled with each other. The secondary windings are disposed between the bobbins and each has a through-hole corresponding to the hollow portion. The two magnetic cores penetrate the penetration hole of the base, the hollow portions of the bobbins, and the through-holes of the secondary windings to assemble them together.
    Type: Application
    Filed: November 5, 2013
    Publication date: March 6, 2014
    Applicant: Chicony Power Technology Co., Ltd.
    Inventors: Hao-Te HSU, Yung-Hung HSIAO
  • Patent number: 8614614
    Abstract: It is described a single-phase or three-phase distribution electric transformer, of solid insulation, for use in aerial installation, in poles, in platforms or pedestals, or installation in underground distribution network for operation in air environment, semi-submerged or submerged. Such transformer comprises at least one high voltage winding (3) and at least one low voltage winding (2) concentrically assembled around a core column (1.2,1.3), the low voltage and high voltage windings (2,3) being electrically isolated from a solid material, a core window (20) being defined as a space between two core columns (1.2,1.3), the transformer comprising at least one electrical insulation sheet (4) assembled on at least a core window (20) of said transformer, the assembly of the electrical insulation sheet (4) being defined in the longitudinal direction (300) of the transformer. Such sheet (4) avoids the formation of spiral around the core by immersion water or conductive dust.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 24, 2013
    Assignee: Siemens Ltda.
    Inventors: Martin Alsina Navarro, Jose Carlos Medeiros, Eledilson Clayton Betiol, Marilucia Martinato, Renan Junqueira Dias, Jean Carlos da Silva
  • Patent number: 8604899
    Abstract: An electrical transformer is disclosed which includes an enclosure; a magnetic core assembly arranged within the enclosure, the magnetic core assembly having a first core limb, a second core limb and a third core limb; and three coil assemblies having a first coil assembly, a second coil assembly, and a third coil assembly. At least two diaphragms are arranged within the enclosure, the diaphragms being essentially sealed to a first outermost coil of the first coil assembly, and arranged for guiding a cooling fluid in series through a first inner fluid duct, a second inner fluid duct, a third inner fluid duct and an extra-coil volume along outsides of third, second and first outermost coil coils of the third, second and first coil assemblies.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: December 10, 2013
    Assignee: Abb Research Ltd.
    Inventors: Bernardo Galletti, Arthouros Iordanidis, Jasmin Smajic, Martin Carlen
  • Publication number: 20130321113
    Abstract: A dry-type electrical transformer includes a coil assembly having at least one winding wound into a plurality of concentric turns, at least one cooling sector defined between adjacent concentric turns, spacers positioned inside the cooling sector and spaced from each other to allow a plurality of air ducts each defined between two adjacent spacers, and at least one electrical shield positioned in the cooling sector and arranged to electrically shield the air ducts. At least one electrical shield is positioned in the cooling sector and arranged to electrically shield the air ducts. The electrical shield include a first end edge connected to the turn at the inner side of the cooling sector, a second end edge which is free and electrically insulated from the surrounding parts, and a central portion extending between the first and second end edges and is positioned at the outer side of the spacers.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: ABB Technology AG
    Inventors: Carlos ROY, Rafael Murillo, Lorena Cebrian Lles
  • Publication number: 20130314185
    Abstract: Provided are a transformer cooling apparatus and a transformer assembly including the same. The transformer cooling apparatus includes a first plate on which a transformer including a magnetic member and a coil is seated, a second plate disposed on a side of the first plate, the second plate being spaced apart from the first plate, and a coolant passage in which a coolant flows, the coolant passage being defined between the first plate and the second plate.
    Type: Application
    Filed: April 23, 2013
    Publication date: November 28, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Jun Seok EOM, Jae Ho LEE
  • Publication number: 20130307654
    Abstract: An electrical device includes a winding, a primary cooling system, a secondary cooling system, and an actuator. The winding includes an interior portion and an exterior surface. The primary cooling system cools the exterior surface of the winding. The secondary cooling system cools the interior portion of the winding. The actuator is configured to actuate the secondary cooling system in response to a sensed condition of the electrical device or a predicted condition of the electrical device.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Inventors: Roderick A. Hyde, Jordin T. Kare, Lowell L. Wood, JR.
  • Publication number: 20130300526
    Abstract: The disclosure is related to a dry transformer, which includes a transformer core with at least two parallel limbs and upper and lower yokes, and at least two hollow cylindrical coils, each arranged as neighbored coils around a limb of the at least two parallel limbs. A cooling system can include at least one wall-like diaphragm in-between the neighbored coils, which is in parallel to the orientation of the limbs.
    Type: Application
    Filed: July 12, 2013
    Publication date: November 14, 2013
    Inventors: Marcos BOCKHOLT, Frank Cornelius, Jens Tepper, Burak Esenlik, Bhavesch Patel, Benjamin Weber, Arthouros Iordanidis, Jasmin Smajic, Thorsten Steinmetz, Bernardo Galletti
  • Patent number: 8575479
    Abstract: In one embodiment, a transformer is provided for coupling between a utility connection and a plurality of power cells of a drive system. The transformer may be of a horizontal arrangement and include a housing and a core configured within the housing and having multiple columns each adapted along a horizontal axis. Each column corresponds to a phase, and each phase includes a coil having primary winding and multiple secondary windings concentrically adapted about the column horizontal axis to provide an air gap between adjacent ones of the primary and secondary windings. In addition, the transformer may include a baffler adapted about the core and configured within the housing to prevent air flow at a periphery of the coils and to direct air flow through the air gaps of the coils.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 5, 2013
    Assignee: TECO—Westinghouse Motor Company
    Inventors: Mehdi Abolhassani, Manzoor Hussain
  • Patent number: 8570131
    Abstract: A transformer containing an electrical active part arranged in an insulating space and including primary and secondary winding wound around a magnetic core. and radially spaced apart from each other by a winding space having an insulation fluid. A block defines a compartment closed and separated from a remaining insulating space, the compartment being at least partially arranged within the winding space. The compartment contains an insulation fluid different from insulation fluid in the remaining insulating space, and having a higher dielectric breakdown field strength than the insulation fluid in the remaining insulating space.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: October 29, 2013
    Assignee: ABB Technology AG
    Inventor: Rafael Murillo
  • Publication number: 20130278370
    Abstract: An inductor comprises a ferromagnetic core, a plurality of conductor turns encircling the ferromagnetic core, a bobbin, and a wave spring. The bobbin encloses the ferromagnetic core and supports the plurality of conductor turns and the wave spring is situated between the bobbin and the ferromagnetic core.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 24, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Adam M. Finney, Charles Shepard, Kris H. Campbell, Robert Scott Downing
  • Patent number: 8564392
    Abstract: An ignition coil includes a central core, a primary winding, a spool, a secondary winding, and a case outward of the core, spool, primary winding, and secondary winding. The secondary winding is wound on the spool and includes a high voltage end. The ignition coil also includes a cup formed of a metal material in electrical communication with the high voltage end of the secondary winding and is configured to be contacted by a conductive connector that is suitable for connection to a spark plug. The cup includes a generally cylindrical first sidewall press fit with the case and defining a press fit area at the interface of the first sidewall and the case, a generally cylindrical second sidewall spaced radially from the first sidewall, and an annular space defined between the press fit area and the second sidewall.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: October 22, 2013
    Assignee: Delphi Technologies, Inc.
    Inventors: Albert A. Skinner, Harry O. Levers
  • Patent number: 8547193
    Abstract: In a stationary induction apparatus, an inter-partial-coil insulating plate and a plurality of inter-partial-coil spacer insulators form a refrigerant flow path in conjunction with each other. A space having an inter-partial-coil insulation dimension for withstanding an abnormal voltage is formed between a pair of partial coils. The inter-partial-coil insulating plate and the inter-partial-coil spacer insulators support both the pair of partial coils at an insulated state so as to maintain the inter-partial-coil insulation dimension. The insulators are arranged so as to be overlapped with each other in the direction in which mutually adjacent partial coils are opposed to each other.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: October 1, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Soichiro Kainaga, Takao Tsurimoto, Takahiko Ishikura, Hirotaka Muto, Hiroki Otera, Tetsuya Matsuda, Koji Kise, Noboru Hosokawa, Kiyoyuki Ishikawa, Koji Shinya, Ryuichi Nishiura