Patents by Inventor Thomas GRADINGER
Thomas GRADINGER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210398741Abstract: A transformer includes a transformer core having a first core leg having a first longitudinal axis and second core leg having a second longitudinal axis; a first low voltage (LV) winding arranged around the first core leg, a first high voltage (HV) winding arranged around the first LV winding; a second low voltage (LV) winding arranged around the second core leg; and a second high voltage winding arranged around the second LV winding, wherein the first HV winding is provided with a first HV connector and a second HV connector each extending substantially perpendicular away from the first longitudinal axis, and wherein the second HV winding is provided with a third HV connector and a fourth HV connector each extending substantially perpendicular away from the second longitudinal axis.Type: ApplicationFiled: September 18, 2019Publication date: December 23, 2021Applicant: ABB Power Grids Switzerland AGInventors: Uwe DROFENIK, Thomas GRADINGER, Bernhard WUNSCH
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Publication number: 20210391117Abstract: A transformer is described. The transformer includes a transformer core having a core leg having a longitudinal axis, a low voltage winding arranged around the core leg, the low voltage winding extending along a first length in the direction of the longitudinal axis, a high voltage winding arranged around the low voltage winding, the high voltage winding extending along a second length in the direction of the longitudinal axis, wherein the second length is shorter than the first length, and a casting embedding the low voltage winding and the high voltage winding. The casting has a recess. The recess is provided at a radial location of the high voltage winding and the recess extends in the direction of the longitudinal axis.Type: ApplicationFiled: September 24, 2019Publication date: December 16, 2021Inventors: Uwe Drofenik, Thomas Gradinger
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Publication number: 20210018554Abstract: Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.Type: ApplicationFiled: July 10, 2020Publication date: January 21, 2021Inventors: Uwe Drofenik, Thomas Gradinger, Francisco Canales
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Patent number: 10879150Abstract: An arrangement for subsea cooling of a semiconductor module. The arrangement includes a tank. The tank is filled with a dielectric fluid. The arrangement includes at least one semiconductor module. The at least one semiconductor module is placed in the tank. Each at least one semiconductor module includes semiconductor submodules and is attached to a heat sink. The semiconductor submodules generate heat, thereby causing the dielectric fluid to circulate by natural convection. The heat sink includes a first part having a first thermal resistance from the semiconductor module to the dielectric fluid. The heat sink includes a second part having a second thermal resistance from the semiconductor module to the dielectric fluid. The second thermal resistance is higher than the first thermal resistance. The heat sink is oriented such that, when the arrangement is installed, the first part is configured to lie vertically higher than the second part.Type: GrantFiled: January 18, 2017Date of Patent: December 29, 2020Assignee: ABB Schweiz AGInventors: Heinz Lendenmann, Thomas Gradinger, Thomas Wagner, Timo Koivuluoma, Tor Laneryd
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Publication number: 20200383239Abstract: A heat exchanging arrangement for a subsea electronic system, the heat exchanging arrangement including: at least one pipe having an external surface; and at least one heat exchanging element arranged inside the at least one pipe and defining at least one internal passage for conducting a dielectric fluid through the at least one pipe; wherein the at least one heat exchanging element is arranged to press laterally outwards against an internal surface of the at least one pipe to establish a heat transfer bond between the at least one heat exchanging element and the at least one pipe. A subsea electronic system including the heat exchanging arrangement is also provided.Type: ApplicationFiled: April 4, 2018Publication date: December 3, 2020Inventors: Tor Laneryd, Thomas Gradinger, Heinz Lendenmann, Thomas Wagner, Hui Huang, Kim Missing, Mika Norolampi
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Publication number: 20200350232Abstract: A semiconductor component, including a support frame and at least one semiconductor module attached to the support frame, wherein the support frame includes a respective passage (on the edge of which a base plate of the semiconductor module rests, wherein the base plate is soldered to the support frame.Type: ApplicationFiled: April 13, 2020Publication date: November 5, 2020Applicants: AUDI AG, ABB Schweiz AGInventors: Thomas GRADINGER, Daniele TORRESIN
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Publication number: 20200340763Abstract: A heat exchanging arrangement for a subsea electronic system, the heat exchanging arrangement including a wall section; a corrugation formed in the wall section, the corrugation having two generally opposing internal corrugation surfaces; and at least one heat exchanging element forced against at least one of the internal corrugation surfaces. A subsea electronic system including a heat exchanging arrangement is also provided.Type: ApplicationFiled: April 17, 2020Publication date: October 29, 2020Inventors: Tor Laneryd, Thomas Gradinger, Thomas Wagner, Heinz Lendenmann
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Publication number: 20190371517Abstract: A transformer is provided, which includes a tank having an enclosed volume with an insulating material, the tank including at least one channel extending through the tank, wherein the interior of the at least one channel is separated from the enclosed volume of the tank by a channel wall. A transformer core is provided outside of the enclosed volume, including at least one core leg extending through the tank via the at least one channel. At least one coil is located inside the enclosed volume, the coil being wound about the at least one channel, the tank has an inner wall or outer wall including a weakly-conductive layer, which includes fibers embedded in an impregnating material.Type: ApplicationFiled: August 12, 2019Publication date: December 5, 2019Inventors: Lise Donzel, Rudi Velthuis, Thomas Gradinger, Felix Greuter
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Patent number: 10420240Abstract: A pressure compensated subsea arrangement for housing of electric components. The arrangement includes a pressure compensated housing. The pressure compensated housing is filled with a dielectric liquid. The arrangement includes at least one electric component. The at least one electric component is provided inside the pressure compensated housing. The dielectric liquid is a hydrocarbon dielectric liquid including isoparaffin. There is also provided a method of manufacturing such an arrangement.Type: GrantFiled: June 3, 2015Date of Patent: September 17, 2019Assignee: ABB Schweiz AGInventors: Santanu Singha, Tor Laneryd, Thomas Gradinger, Heinz Lendenmann
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Patent number: 10390459Abstract: An arrangement for cooling components of a subsea electric system including a tank filled with a dielectric fluid. The tank includes first and second sections. The arrangement includes one first electric component within the first section, and one second electric component within the second section. The arrangement includes a first heat exchanger located outside the tank and in fluid contact with the tank, and arranged during operation to be in thermal contact with sea water. The arrangement includes a pump arranged to force a flow of dielectric fluid through the first heat exchanger. Flow of dielectric fluid in the tank is by both natural and forced convection generated by the pump. The first electric component generates more heat than the second electric component. Within the first section the share of the flow by natural convection is greater than within the second section.Type: GrantFiled: March 3, 2015Date of Patent: August 20, 2019Assignee: ABB Schweiz AGInventors: Thomas Gradinger, Tor Laneryd
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Patent number: 10244650Abstract: A pressure compensated subsea electrical system and a pressure compensated subsea electrical system which has a housing filled with a dielectric liquid. The housing has a first housing portion and a second housing portion in pressure communication with each other. The first housing portion includes a transformer, and the second housing portion includes a power converter. The pressure compensated subsea electrical system includes a pressure compensator arranged to compensate pressure inside the housing. The pressure compensator is enabled to compensate pressure in both the first housing portion and the second housing portion.Type: GrantFiled: August 10, 2015Date of Patent: March 26, 2019Assignee: ABB Schweiz AGInventors: Tor Laneryd, Thomas Gradinger, Heinz Lendenmann, Esa Virtanen, Thomas Wagner, Timo Koivuluoma
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Patent number: 9888612Abstract: It is proposed a two-phase heat exchanger device for a power-electronic module arrangement having a semiconductor module. The two-phase heat exchanger device includes a base plate configured for being in contact with a first semiconductor module at a first side of the base plate; and at least one tube element for a first cooling medium including a first portion having at least one evaporator channel and a second portion having at least one condenser channel. The base plate has a groove containing the tube element, wherein the groove is dimensioned for enabling thermal contact between the base plate and the first portion of the tube element and dimensioned to form a gap between the base plate and the second portion of the tube element for thermal separation of the base plate and the second portion of the tube element.Type: GrantFiled: January 9, 2017Date of Patent: February 6, 2018Assignee: ABB Schweiz AGInventors: Daniele Torresin, Bruno Agostini, Francesco Agostini, Thomas Gradinger, Mathieu Habert
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Publication number: 20180020562Abstract: A pressure compensated subsea arrangement for housing of electric components. The arrangement includes a pressure compensated housing. The pressure compensated housing is filled with a dielectric liquid. The arrangement includes at least one electric component. The at least one electric component is provided inside the pressure compensated housing. The dielectric liquid is a hydrocarbon dielectric liquid including isoparaffin. There is also provided a method of manufacturing such an arrangement.Type: ApplicationFiled: June 3, 2015Publication date: January 18, 2018Applicant: ABB Schweiz AGInventors: Santanu Singha, Tor Laneryd, Thomas Gradinger, Heinz Lendenmann
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Publication number: 20170280577Abstract: A pressure compensated subsea electrical system and a pressure compensated subsea electrical system which has a housing filled with a dielectric liquid. The housing has a first housing portion and a second housing portion in pressure communication with each other. The first housing portion includes a transformer, and the second housing portion includes a power converter. The pressure compensated subsea electrical system includes a pressure compensator arranged to compensate pressure inside the housing. The pressure compensator is enabled to compensate pressure in both the first housing portion and the second housing portion.Type: ApplicationFiled: August 10, 2015Publication date: September 28, 2017Applicant: ABB Schweiz AGInventors: Tor Laneryd, Thomas Gradinger, Heinz Lendenmann, Esa Virtanen, Thomas Wagner, Timo Koivuluoma
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Publication number: 20170243805Abstract: An arrangement for subsea cooling of a semiconductor module. The arrangement includes a tank. The tank is filled with a dielectric fluid. The arrangement includes at least one semiconductor module. The at least one semiconductor module is placed in the tank. Each at least one semiconductor module includes semiconductor submodules and is attached to a heat sink. The semiconductor submodules generate heat, thereby causing the dielectric fluid to circulate by natural convection. The heat sink includes a first part having a first thermal resistance from the semiconductor module to the dielectric fluid. The heat sink includes a second part having a second thermal resistance from the semiconductor module to the dielectric fluid. The second thermal resistance is higher than the first thermal resistance. The heat sink is oriented such that, when the arrangement is installed, the first part is configured to lie vertically higher than the second part.Type: ApplicationFiled: January 18, 2017Publication date: August 24, 2017Inventors: Heinz LENDENMANN, Thomas GRADINGER, Thomas WAGNER, Timo KOIVULUOMA, Tor LANERYD
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Patent number: 9736967Abstract: Cooling apparatus cooling for an electrical or electronic device, comprising an at least partially hollow body containing a refrigerant and having a plurality of electrically conductive sections Each electrically conductive section has a respective coupling portion suitable to be operatively associated with a corresponding electrically conductive part of the electrical or electronic device, wherein the at least partially hollow body further comprises one or more electrically insulating sections. Each electrically insulating section is positioned between and electrically insulates from each other two adjacent electrically conductive sections.Type: GrantFiled: August 7, 2013Date of Patent: August 15, 2017Assignee: ABB S.P.A.Inventors: Francoise Molitor, Patrik Kaufmann, Tilo Buehler, Francesco Agostini, Thomas Gradinger, Federico Gamba
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Publication number: 20170202108Abstract: It is proposed a two-phase heat exchanger device for a power-electronic module arrangement having a semiconductor module. The two-phase heat exchanger device includes a base plate configured for being in contact with a first semiconductor module at a first side of the base plate; and at least one tube element for a first cooling medium including a first portion having at least one evaporator channel and a second portion having at least one condenser channel. The base plate has a groove containing the tube element, wherein the groove is dimensioned for enabling thermal contact between the base plate and the first portion of the tube element and dimensioned to form a gap between the base plate and the second portion of the tube element for thermal separation of the base plate and the second portion of the tube element.Type: ApplicationFiled: January 9, 2017Publication date: July 13, 2017Inventors: Daniele Torresin, Bruno Agostini, Francesco Agostini, Thomas Gradinger, Mathieu Habert
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Patent number: 9668376Abstract: An electric converter system, including a housing configured to receive a dielectric fluid, at least two electric modules, each including a first space and a second space, the first space including a connecting portion and a cooling system configured to circulate the dielectric fluid to cool the electric modules. The converter system further includes an inter module bus bar portion including a complementary connecting portion, whereby the connecting portion is configured to be connected to the complementary connecting portion of the inter module bus bar portion, whereby the inter module bus bar portion is configured to interconnect one of the at least two electric modules with the other of the at least two electric modules, said one electric module being proximate to said other electric module, and whereby the connecting portion, the first space and the second space of each electric module are arranged in series.Type: GrantFiled: July 2, 2014Date of Patent: May 30, 2017Assignee: ABB Schweiz AGInventors: Gernot Riedel, Slavo Kicin, Thomas Gradinger
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Publication number: 20170112021Abstract: An arrangement for cooling components of a subsea electric system including a tank filled with a dielectric fluid. The tank includes first and second sections. The arrangement includes one first electric component within the first section, and one second electric component within the second section. The arrangement includes a first heat exchanger located outside the tank and in fluid contact with the tank, and arranged during operation to be in thermal contact with sea water. The arrangement includes a pump arranged to force a flow of dielectric fluid through the first heat exchanger. Flow of dielectric fluid in the tank is by both natural and forced convection generated by the pump. The first electric component generates more heat than the second electric component. Within the first section the share of the flow by natural convection is greater than within the second section.Type: ApplicationFiled: March 3, 2015Publication date: April 20, 2017Applicant: ABB Schweiz AGInventors: Thomas Gradinger, Tor Laneryd
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Publication number: 20160192540Abstract: An electric converter system, including a housing configured to receive a dielectric fluid, at least two electric modules, each including a first space and a second space, the first space including a connecting portion and a cooling system configured to circulate the dielectric fluid to cool the electric modules. The converter system further includes an inter module bus bar portion including a complementary connecting portion, whereby the connecting portion is configured to be connected to the complementary connecting portion of the inter module bus bar portion, whereby the inter module bus bar portion is configured to interconnect one of the at least two electric modules with the other of the at least two electric modules, said one electric module being proximate to said other electric module, and whereby the connecting portion, the first space and the second space of each electric module are arranged in series.Type: ApplicationFiled: July 2, 2014Publication date: June 30, 2016Inventors: Gernot Riedel, Slavo Kicin, Thomas Gradinger