Class / Patent application number | Description | Number of patent applications / Date published |
336061000 |
Heat exchanging surfaces
| 59 |
336060000 |
Ventilating passages (e.g., by coil section or core part spacers)
| 43 |
336058000 |
Liquid insulating medium
| 32 |
336057000 |
With inductor insulating fluid circulating means
| 24 |
336059000 |
Vented casing | 4 |
20100117776 | COOLING SYSTEM FOR A DRY-TYPE AIR-CORE REACTOR - An air-core reactor with natural-air cooling of a winding includes first open spaces to let air flow through the winding in parallel with an axis of symmetry of the reactor and second open spaces crossing the first open spaces to let air flow through the winding angular to the axis of symmetry. A ventilation unit to produce a forced-air flow is arranged in such a way to the air-core reactor that a first part of the forced-air flow enters one of the first or second open spaces and at least one guiding element is arranged with respect to the crossing of the first and the second open spaces in such a way that the first part of the forced-air flow leaves and a second part of the forced-air flow enters the one of the first or second open spaces. A shielding element is arranged at another crossing of the first and the second open spaces so that substantially no air can leave or enter the one of the first or second open spaces. | 05-13-2010 |
20110175696 | ELECTRIC WINDING BODY AND TRANSFORMER HAVING FORCED COOLING - An electrical winding body includes an electrically conductive winding and an insulation surrounding the winding. The surrounding insulation surrounds the entire winding and forms a mechanically stable winding body. At least one continuous channel having an opening in the electrical winding body is disposed inside the winding body. An extension element is placed in the openings of the continuous channels to elongate the channels beyond the dimensions of the electrical winding body, thus providing for improved cooling. Side elements are additionally attached on the outer wall of the electrical winding body to create an intermediate space which forms a new cooling channel that produces an additional cooling effect due to an air current created by the chimney effect. | 07-21-2011 |
20150061803 | TRANSFORMER CHAMBER FOR A WIND TURBINE - A transformer chamber for a wind turbine is described. The transformer chamber includes a liquid-tight tank for receiving a liquid-filled, in particular oil-filled, transformer, a wind turbine structure component includes a component bedframe adapted for receiving such a transformer chamber and a wind turbine includes such a transformer chamber and such a wind turbine structure component. Furthermore, a method for assembling a wind turbine is described. | 03-05-2015 |
20150302979 | STRUCTURE OF TRANSFORMER - An improved structure of a transformer includes a bobbin covering at least a portion of a magnetic core set which has a magnetic loop passing through the bobbin, wherein winding grooves and at least one connecting portion extending sideways are provided on the outer peripheral side of the bobbin, and a plurality of notches with lateral openings are provided on the connecting portion. Coils are wound in the winding grooves of the bobbin. The coils have at least a plurality of line ends, each line end passing through a different notch. One positioning pin is embedded in each of the winding grooves near the lateral opening. The positioning pins hold the respective line ends in place by pressing against them. A casing is fitted on the outer peripheral side of the coils to create separation between the coils and the magnetic core set. The casing is provided with a hollow opening such that the outer peripheral side of the coils facing the airflow is exposed to improve the overall heat dissipating efficiency. | 10-22-2015 |
336062000 |
Hollow conductor coil | 4 |
20090102588 | BRAZE METAL JOINT DESIGN - A copper tube with copper end pieces for a water-cooled secondary winding of a welding transformer is an example of a brazed assembly having a potentially corrodible side, the water-cooled side, and a low-exposure side, the air side or dry side, of the joined pieces. By shaping contacting surfaces of the parts at the brazed joint it is useful to form a barrier, for example, between a special braze material required for the corrosive side and a conventional, easy to apply, braze material for use on the air side of the joint. | 04-23-2009 |
20090322460 | HIGH-FREQUENCY SWITCHING-TYPE DIRECT-CURRENT RECTIFIER - The present invention relates to a novel structure of a transformer for a high-frequency switching-type direct-current (DC) rectifier, and particularly to an improved structure of a transformer applicable to a large-current low-voltage high-frequency switching-type rectifier, wherein the transformer is comprised of a ring-shaped iron core (made of materials such as dust core or nanometer crystalline silicon or amorphous silicone), which is provided with a primary side formed with winding(s) of copper wire(s), coupling with a secondary side that is formed with a newly-developed module or block, which replaces the secondary side that was constructed to provide output with copper wires or copper plate with wire wound thereon. A cooling water tube is arranged in the secondary-side module to remove heat with the water so as to maintain normal temperatures of the transformer in a pollution-free manner with reduced size and weight and easy assembling and reduced costs of the transformer. | 12-31-2009 |
20100156583 | WINDING ELEMENT FOR A COIL WINDING AND TRANSFORMER ARRANGEMENT - The invention relates to a winding element ( | 06-24-2010 |
20120044032 | PUMPED LOOP REFRIGERANT SYSTEM FOR WINDINGS OF TRANSFORMER - A pumped loop cooling system is provided to cool a hollow winding of a transformer utilizing a two phase vaporizable dielectric refrigerant. A liquid refrigerant pump circulates the refrigerant into a transformer and through a copper tube winding of the transformer where the refrigerant at least partially vaporizes in removing heat from the transformer. The refrigerant is then circulated to a condenser and then back to the pump. | 02-23-2012 |
Entries |
Document | Title | Date |
20080197953 | Transformer Having Multi-Layered Winding Structure - Disclosed is a transformer having a multilayered winding structure. The transformer is supplied with alternating current power, and transfers the power to another circuit by electromagnetic induction. The transformer includes a core section having a hollow section, and primary and secondary windings isolated electrically from each other and wound around the core section. Each of the primary and secondary windings has a multilayered structure in which a plurality of metal plates are laminated with gaps therebetween and are coupled to each other at one side ends thereof, and the metal plates of the primary and secondary windings are inserted into and coupled to each other at the other side ends thereof in such a manner that the metal plates of the primary winding are alternately inserted into the gaps of the second windings. Thereby, it is possible to greatly reduce conduction loss generated from a high-frequency and high-capacity transformer, to improve voltage conversion efficiency, to greatly reduce an amount of discharging heat generated from the windings, and to efficiently discharge heat. | 08-21-2008 |
20090189723 | TRANSFORMER WITH ISOLATED CELLS - A power transformer apparatus and method of assembling are provided. In one aspect, a method of assembling a transformer is provided. The method includes providing a heat sink including a plurality of exterior ribs, wherein the heat sink forms a bottom wall of an enclosure. The method also includes coupling at least one diaphragm to the heat sink such that a bottom surface of the diaphragm is in contact with the heat sink, coupling at least one winding to the at least one diaphragm, and coupling a terminal board to the heat sink such that a plurality of spacers are positioned between the terminal board and the heat sink. | 07-30-2009 |
20090302986 | Minimal-length windings for reduction of copper power losses in magnetic elements - The present invention discloses means for reducing copper power losses in windings of magnetic elements by minimizing their length. This is achieved by winding a continuous copper foil of a specific geometrical design at least one turn over a ferromagnetic core with the surface of the foil parallel to the surface of the core The transformer may have high or low turn ratios, may also use winding coil formers to achieve proper creepage and clearance and may use a compressible, thermally conductive pad for facilitating heat dissipation. | 12-10-2009 |
20110037550 | SOLID INSULATION FOR FLUID-FILLED TRANSFORMER AND METHOD OF FABRICATION THEREOF - An insulation system for a fluid-filled power transformer that allows for operation of the transformer at higher temperatures and with lowered susceptibility to aging. The insulation system includes a plurality of fibers that are bound together by a solid binding agent. The solid binding agent may, for example, for sheaths around the fibers or may be in the form of dispersed particles that bind the fibers to each other. Also, a method of fabricating such an insulation system. | 02-17-2011 |
20110115591 | Power Adapter Having a Heating and Heat Dissipating Device - The present invention provides a power adapter having a heating and heat dissipating function. The power adapter comprises an outer shell, an inner shell, a power source input terminal and a power source output terminal. The outer shell further comprises a recessed slide. The inner shell includes a stopper, an opening, a transformer and a heating device. The outer shell could slide along the recessed slide. While the outer shell moves from a first position to a second position, the heating device could be revealed. The user could put anything that need to be heated or warmed up on the heating device. | 05-19-2011 |
20110227680 | INDUCTOR MOUNT METHOD AND APPARATUS - The invention comprises an inductor mounting method and apparatus. An about annular inductor is mounted using a non-conducting clamp element passing at least into a center opening of the inductor. Mounting hardware forces the clamp element toward a mounting surface to edge mount the inductor, where the mounting hardware, non-conducting clamp element, and mounting surface minimally contact the inductor. The minimal contact allows greater surface area for liquid, convective, and/or radiative cooling of the inductor. The inductor is optionally composed of particles of magnetic material coated with carbon and embedded into an epoxy to yield a distributed gap material. | 09-22-2011 |
20120092108 | LIQUID COOLED MAGNETIC COMPONENT WITH INDIRECT COOLING FOR HIGH FREQUENCY AND HIGH POWER APPLICATIONS - A magnetic component such as a transformer or inductor comprises one or more litz-wire windings and one or more metallic cooling tube windings. Each litz-wire winding is wound together with a corresponding single metallic cooling tube winding on a common bobbin to provide an indirectly-cooled magnetic component. | 04-19-2012 |
20120092109 | TRANSFORMER COIL AND TRANSFORMER WITH PASSIVE COOLING - 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. | 04-19-2012 |
20120161911 | INDUCTION DEVICE - An induction device includes a casing, a coil retainer, a coil that is disposed in the casing and retained to the coil retainer and a core that is disposed in the casing. The coil extends spirally around the core. The core and the coil retainer are fixed to the casing separately. | 06-28-2012 |
20120223792 | PHASE CHANGE INDUCTOR COOLING APPARATUS AND METHOD OF USE THEREOF - 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. | 09-06-2012 |
20120262264 | LIQUID-COOLED INDUCTIVE COMPONENT - A liquid-cooled inductive component includes a magnetic core and pressures pieces which are arranged on two opposite sides of the magnetic core and are in mechanical contact with the magnetic core either directly or via a thermally conductive material. A winding is provided which is wound around the magnetic core and the pressure pieces, so that the pressure pieces are arranged between portions of the magnetic core and the winding. The pressure pieces are configured as hollow bodies including coolant connections, portions of the winding abutting on the pressure pieces directly or via a thermally conductive material. | 10-18-2012 |
20120306605 | MAGNETIC CORE - A magnetic core includes a first core having a predetermined magnetic permeability and a second core formed of the same material as the first core. The second core forms a closed magnetic circuit together with the first core. The second core is configured to radiate heat through a heat radiating unit. At least one of the first core and the second core is configured to be wound with a coil. The magnetic core includes a third core that is arranged between the first core and the second core and has a lower magnetic permeability than the first core. | 12-06-2012 |
20120306606 | DEVICE FOR LIMITING CURRENT HAVING VARIABLE COIL IMPEDANCE - A device for limiting current with variable coil impedance includes a choke coil and a cooling device. An additional coil is made of a high-temperature superconducting material and is disposed in the choke coil such that the current is limited by the device without using an iron core. | 12-06-2012 |
20130093553 | INDUCTION DEVICE - An induction device includes a first core made of a ferrite material, a second core made of a material having a lower magnetic permeability than the ferrite material and a higher saturation magnetic flux density than the ferrite material, a cooling device and a coil. The first core and the second core cooperate to form a closed magnetic circuit. The first core includes a contact surface cooled by the cooling device and a first magnetic leg extending so as to intersect with the contact surface and toward the second core. The second core includes a second magnetic leg extending so as to intersect with the contact surface and toward the first core and disposed to be wound around by the coil. | 04-18-2013 |
20130099883 | REACTOR - A reactor is provided with: a reactor core that is generally annular and that has a coil; and one of a housing and a cooler to which the reactor core, having the coil, is fixed via an adhesive region that is formed of a moisture-curable adhesive, wherein the adhesive region is discontinuous in at least one planar direction of the adhesive region. | 04-25-2013 |
20130141201 | IRON CORE WINDING ASSEMBLY - An iron core winding assembly comprises a coil rack and an iron core structure coupled with the coil rack. The coil rack includes a winding portion, a through hole located in the winding portion and at least one lateral wire exit portion extended from the winding portion. The iron core structure includes two end walls and two axial magnetic cylinders located between the two end walls, and two top walls and two bottom walls located between the two end walls to cover the winding portion. Each axial magnetic cylinder runs through the through hole. Each top wall forms a wire exit notch with the bottom wall run through by the lateral wire exit portion. The iron core winding assembly thus formed is positioned transversely on an electronic baseboard at a desired height. By separating the winding portion and electronic baseboard via the bottom wall, electromagnetic interference can be avoided. | 06-06-2013 |
20130162380 | CONNECTION DEVICE WITHOUT ELECTRICAL CONTACT, ALLOWING THE TRANSMISSION OF THREE-PHASE ELECTRICAL POWER - The invention relates to a connection device, without electrical contact, between a source and a load in order to transmit AC electrical power having a frequency below 2 kHz and at least one phase, the device comprising two parts being able to be separated and assembled at will in a particular configuration suitable for transferring power without electrical contact, a primary part (P | 06-27-2013 |
20130222100 | REACTOR | 08-29-2013 |
20130293329 | TRANSFORMER WINDING WITH COOLING CHANNEL - 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. | 11-07-2013 |
20140035709 | DRY TRANSFORMER HEATER - A dry-type transformer heater includes a closed housing, and at least one transformer winding arranged in the housing. The at least one transformer winding includes at least one corresponding winding conductor and a corresponding insulation layer surrounding the transformer winding, respectively. In addition to the respective winding conductor, at least one coil heating wire is provided in at least one of the insulation layer and on the surface of the insulation layer to input thermal power into the respective insulation layer. | 02-06-2014 |
20140132378 | TEMPERATURE REGULATION OF AN INDUCTOR ASSEMBLY - A vehicle is provided with a transmission having an inductor assembly. The inductor assembly is mounted within the transmission such that it is directly cooled by transmission fluid through at least one of spraying, splashing and immersion. The transmission includes at least one gear that is configured to, when rotating, transmit torque between an input and output of the transmission and splash fluid onto the inductor assembly to cool the inductor assembly. | 05-15-2014 |
20140292456 | REACTOR - A reactor includes an annular core, coils, a sensor detecting a state of the reactor, and a connector outputting signal from the sensor. Resin-molded bodies are provided around the annular core. The resin-molded body has bobbins for the respective coils and core covering portions formed integrally with each other. An exposed area where no resin covers the bottom of the core is formed in the lower face of the covering portions. A holder to fasten the connector is formed integrally with the upper portion of the covering portion. An assembly including the resin-molded bodies in which the annular core is embedded, and the coils wound around the bobbins are retained in a metal casing. A clearance is formed between the assembly and the casing, and a filler is filled in this clearance. The filler covers the exposed area of the core bottom. | 10-02-2014 |
20140327504 | Cellulose Based Electrically Insulating Material - An electrical device including a cellulose based electrically insulating composite material in the form of a paper or pressboard, the composite material having cellulose fibres; and an electrically insulating thermoplastic polymer material; wherein the polymer material is arranged around and between the cellulose fibres, and binds the fibres to each other. | 11-06-2014 |
20140327505 | Inductor and Associated Production Method - An inductor includes a magnetizable core with a winding axis and at least one winding. The winding is formed by a conductor which at least partly surrounds the winding axis of the core. The winding is formed in one layer and a cross section of the conductor is rectangular, in particular square. | 11-06-2014 |
20150084728 | DRY TYPE ECONOMIZER - A dry type economizer includes an economizing unit formed of a plurality of bodies, each body including a silicon-steel layer, an insulating layer surrounding the silicon-steel layer, a plurality of windings surrounding the insulating layer, and reactance elements and reactance filter converters respectively electrically connected to the windings, each winding being formed of a wire material having an increased wire diameter larger than a standard wire diameter of 3.5 mm. Thus, each body eliminates the use of any insulating oil, and has an increased volume to provide a large surface area in contact with the atmosphere for quick dissipation of heat during operation of the reactance elements. | 03-26-2015 |
20150377715 | MEASUREMENT OF THE HOMOGENEOUS TEMPERATURE OF A COIL BY INCREASING THE RESISTANCE OF A WIRE - The invention relates to a method of measuring the temperature of a coiled component comprising the injection of a known DC current into a gauge wire ( | 12-31-2015 |
20160086713 | THERMALLY CONDUCTIVE SILICONE ADHESIVE COMPOSITION FOR REACTOR AND REACTOR - A thermally conductive silicone adhesive composition for a reactor, having good fluidity even when containing a large amount of thermally conductive filler to obtain a thermally conductive silicone adhesive composition, permitting potting of fine substrates, having good properties after curing, having little change in properties even with heat or moist-heat aging, and giving good adhesiveness to metals and organic resins, and a reactor potted by this composition, can be provided by making a thermally conductive silicone adhesive composition having a viscosity of 100 mPa·s at 25° C. and containing a liquid organohydrogenpolysiloxane having 2-10 hydrogen atoms bonded with silicon atoms in the molecule, containing no alkoxy groups, having at least one epoxy group bonded with a silicon atom via an alkylene group, having a polysiloxane degree of polymerization of 15 or lower, and containing a polysiloxane skeleton having a cyclic structure. | 03-24-2016 |
20170236632 | POWER INDUCTOR | 08-17-2017 |
20170236633 | POWER INDUCTOR | 08-17-2017 |