Patents by Inventor Harald Kobolla
Harald Kobolla 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: 20240153844Abstract: A power semiconductor module has a base plate with a housing and a switching device. The switching device has a substrate and a connecting device with a first and a second main face. A group of power semiconductor components is arranged on a conductor track of the substrate, and has a group midpoint. A pressure device is formed on the substrate in the normal direction to exert pressure, which pressure device has a pressure body and a pressure inducing body, wherein a pressure element is arranged protruding from the pressure body, wherein the pressure element presses onto a pressure section of the second main face of the connecting device, and wherein the pressure inducing body has a pressure transmission section with a pressure transmission point.Type: ApplicationFiled: October 27, 2023Publication date: May 9, 2024Applicant: SEMIKRON DANFOSS ELEKTRONIK GMBH & CO. KGInventors: Stefan OEHLING, Matthias HAGER, Verena GULITSCH, Harald KOBOLLA
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Patent number: 11916329Abstract: An arrangement having a housing and an electrically conductive contact spring is presented, wherein the contact spring has a first and a second orthogonal main plane along its specified spring direction, wherein it is formed so as to be symmetric with respect to the first main plane, x-z plane, and asymmetric with respect to the second main plane, x-y plane, and also with respect to a rotation through 180° about the specified spring direction. The housing has a spring shaft for receiving the contact spring, and wherein this spring shaft likewise has a first and a second main plane, which coincides with the respective main plane of the contact spring, and wherein the spring shaft is formed so as to be symmetric relative to both main planes. And a power semiconductor module having such an arrangement.Type: GrantFiled: July 6, 2023Date of Patent: February 27, 2024Assignee: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: André Schlötterer, Harald Kobolla
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Publication number: 20240022014Abstract: An arrangement having a housing and an electrically conductive contact spring is presented, wherein the contact spring has a first and a second orthogonal main plane along its specified spring direction, wherein it is formed so as to be symmetric with respect to the first main plane, x-z plane, and asymmetric with respect to the second main plane, x-y plane, and also with respect to a rotation through 180° about the specified spring direction. The housing has a spring shaft for receiving the contact spring, and wherein this spring shaft likewise has a first and a second main plane, which coincides with the respective main plane of the contact spring, and wherein the spring shaft is formed so as to be symmetric relative to both main planes. And a power semiconductor module having such an arrangement.Type: ApplicationFiled: July 6, 2023Publication date: January 18, 2024Applicant: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: André SCHLÖTTERER, Harald KOBOLLA
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Patent number: 11837525Abstract: A module and a power semiconductor device wherein a module is configured with a molded plastic body and load terminal elements of the power semiconductor device, wherein respective load terminal elements are configured as a flat shaped metal body having a first main face and an opposite second main face, and having a first secondary face and an opposite second secondary face. The secondary faces connect the main faces, and have a terminal section, wherein the molded plastic body forms channels and comprises a bottom body part, a first and a second edge body and a partition body. The load terminal elements are arranged with a section in an associated channel, and an edge body of the channel has an indentation directed towards the one main face of the directly neighboring terminal element.Type: GrantFiled: June 28, 2023Date of Patent: December 5, 2023Assignee: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: Harald Kobolla, Marco Lederer, Rainer Popp
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Patent number: 11791740Abstract: A power converter module has a switching device with a substrate with a first and a second DC voltage conductor track and a first and a second DC voltage terminal element connected in an electrically conducting manner with the correct polarity, and having a first and a second DC voltage connection element. The first DC voltage terminal element is connected to the first DC voltage connection element in an electrically conducting manner with the correct polarity by means of a first materially-bonded connection, wherein the second DC voltage terminal element is connected to the second DC voltage connection element in an electrically conducting manner with the correct polarity by means of a second materially-bonded connection.Type: GrantFiled: March 31, 2021Date of Patent: October 17, 2023Assignee: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: Ingo Bogen, Florian Fink, Jürgen Steger, Harald Kobolla
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Patent number: 11705650Abstract: A power electronic assembly with a sleeve that has a virtual longitudinal axis and a circuit carrier. The sleeve has a tube-shaped plug-in section which runs around the longitudinal axis, and a first base section arranged at a first end of the plug-in section and runs around the longitudinal axis and extends away from the longitudinal axis. The first base section has at its end a flat first contact surface which runs around the longitudinal axis in a closed manner and which runs in a first plane which runs perpendicular to the longitudinal axis. The first base section has an edge surface which runs around the longitudinal axis in a closed manner and the first base section has a second contact surface which runs from the first contact surface and away from the first plane in the direction towards the edge surface.Type: GrantFiled: May 12, 2021Date of Patent: July 18, 2023Assignee: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: Jörg Ammon, Harald Kobolla, Jürgen Riegel
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Patent number: 11706883Abstract: A power semiconductor module contains a power semiconductor assembly, a housing which in a housing side with an outer surface has a recess with a direction of passage in the normal direction of the outer surface, having an internal contact device which has an electrically conducting contact inside the housing to an external connection element, designed as a load terminal element, with one section in the recess and having a spring element. The connection element is designed as a rigid metallic shaped body with an inner and an outer contact surface, and the outer contact surface is accessible from the outside, and the connection element is connected to the housing via an electrically insulating and mechanically elastic retaining device such that the connection element is moveable in the direction of passage, and wherein the spring element is arranged and designed in such a way that the spring action thereof acts directly or indirectly on the connection element in the direction of passage.Type: GrantFiled: March 18, 2020Date of Patent: July 18, 2023Assignee: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: Sandro Bulovic, Harald Kobolla
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Publication number: 20230197561Abstract: A power semiconductor module has a substrate and an insulation layer and a metal layer arranged on the insulation layer, forming conductor tracks, comprising power semiconductor components arranged on the metal layer and conductively contacted with the metal layer. A pressure device arranged above the substrate in the normal direction of the insulation layer and having a pressure body and pressure elements running toward the substrate. The pressure elements each being connected to the pressure body to move resiliently in the normal direction via a spring element. The pressure body exerting a pressure onto the pressure elements in the direction toward the substrate via the spring elements, the pressure elements being arranged in such a way that, owing to the pressure exerted by the pressure body, they press onto power semiconductor component surrounding regions, surrounding the power semiconductor components, of the substrate.Type: ApplicationFiled: December 9, 2022Publication date: June 22, 2023Applicant: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: Jörg AMMON, Harald KOBOLLA, Ralf EHLER, Simon HÜTTMEIER
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Publication number: 20230038316Abstract: A liquid cooling device with a main body has a planar surface for the arrangement of a power semiconductor device. This main body has a first end face and a second end face opposite said first one, and a plurality of tubular cooling recesses extending from the first to the second end face. A first swirling element arranged in an associated cooling recess, wherein the swirling element has an operative section arranged within the associated cooling recess and a locking section, wherein the locking section interacts with a locking abutment and/or with a further swirling element, and therefore prevents rotation of the operative section in the associated recess.Type: ApplicationFiled: August 12, 2022Publication date: February 9, 2023Applicant: Semikron Elektronik GMBH & Co. KGInventors: HARALD KOBOLLA, Rainer Popp, Christian Zeller
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Publication number: 20210391229Abstract: A power electronic circuit device has a substrate, with multiple conductive tracks, and a power semiconductor component on these conductive tracks has a connection device with a metal sheet which electrically connects a contact pad of the power semiconductor component to a contact pad of a further power semiconductor component or a conductive track, and has a pressure device. The connection device includes a contact section for connection to an assigned contact pad and a connecting section arranged between the two contact sections. The pressure device includes a two-dimensional resilient pressure element that comprises pressure element sections, and first pressure element sections press with a first pressure surface section onto a contact section and second pressure element section presses with a second pressure surface section press onto the connecting section.Type: ApplicationFiled: June 1, 2021Publication date: December 16, 2021Applicant: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: Markus Düsel, Harald Kobolla, Manuel Noderer, Alexander Wehner
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Publication number: 20210376504Abstract: A power electronic assembly with a sleeve that has a virtual longitudinal axis and a circuit carrier. The sleeve has a tube-shaped plug-in section which runs around the longitudinal axis, and a first base section arranged at a first end of the plug-in section and runs around the longitudinal axis and extends away from the longitudinal axis. The first base section has at its end a flat first contact surface which runs around the longitudinal axis in a closed manner and which runs in a first plane which runs perpendicular to the longitudinal axis. The first base section has an edge surface which runs around the longitudinal axis in a closed manner and the first base section has a second contact surface which runs from the first contact surface and away from the first plane in the direction towards the edge surface.Type: ApplicationFiled: May 12, 2021Publication date: December 2, 2021Applicant: SEMIKRON ELECTRONIK GMBH & CO. KGInventors: JÖRG AMMON, Harald Kobolla, Jurgen Riegel
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Publication number: 20210336552Abstract: A power converter module has a switching device with a substrate with a first and a second DC voltage conductor track and a first and a second DC voltage terminal element connected in an electrically conducting manner with the correct polarity, and having a first and a second DC voltage connection element. The first DC voltage terminal element is connected to the first DC voltage connection element in an electrically conducting manner with the correct polarity by means of a first materially-bonded connection, wherein the second DC voltage terminal element is connected to the second DC voltage connection element in an electrically conducting manner with the correct polarity by means of a second materially-bonded connection.Type: ApplicationFiled: March 31, 2021Publication date: October 28, 2021Applicant: SEMIKRON ELEKTRONIK GMBH & CO., KGInventors: Ingo BOGEN, Florian FINK, Jürgen STEGER, Harald KOBOLLA
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Publication number: 20200352041Abstract: A power semiconductor module contains a power semiconductor assembly, a housing which in a housing side with an outer surface has a recess with a direction of passage in the normal direction of the outer surface, having an internal contact device which has an electrically conducting contact inside the housing to an external connection element, designed as a load terminal element, with one section in the recess and having a spring element. The connection element is designed as a rigid metallic shaped body with an inner and an outer contact surface, and the outer contact surface is accessible from the outside, and the connection element is connected to the housing via an electrically insulating and mechanically elastic retaining device such that the connection element is moveable in the direction of passage, and wherein the spring element is arranged and designed in such a way that the spring action thereof acts directly or indirectly on the connection element in the direction of passage.Type: ApplicationFiled: March 18, 2020Publication date: November 5, 2020Applicant: SEMIKRON ELEKTRONIK GMBH & CO.KGInventors: SANDRO BULOVIC, Harald KOBOLLA
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Patent number: 10790207Abstract: The invention relates to a power semiconductor device comprising a pin element which passes through a housing opening, comprising a support device, further comprising an elastic sealing device which is arranged on the support device, comprising a pressure device which is arranged on the sealing device, and comprising an electrically conductive sleeve. A first pressure element of the pressure device presses a first sealing element of the sealing device against a first support element of the support device in the axial direction of the pin element causes deformation of the first sealing element so that the first sealing element presses against the housing opening wall and against the sleeve in a perpendicular direction in relation to the axial direction of the pin element.Type: GrantFiled: May 17, 2019Date of Patent: September 29, 2020Assignee: SEMIKRON ELEKTRONIK GmbH & CO. KGInventors: Jörg Ammon, Harald Kobolla, Stefan Weiss
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Patent number: 10615107Abstract: A power electronic switching device having plurality of potential surfaces. At least two different potentials are respectively assigned to at least one of the potential surfaces. A plurality of semiconductor components are arranged in an n×m matrix, oriented in the x-y-direction, on a first conductor track, formed by at least one potential surface of the first potential. The semiconductor components are connected in parallel with one another and form a current valve. In this case, the semiconductor components can be distributed among a plurality of potential surfaces of the first potential which form the first conductor track.Type: GrantFiled: November 20, 2016Date of Patent: April 7, 2020Assignee: Semikron Elektronik GmbH & Co., KGInventors: Frank Stiegler, Stefan Schmitt, Harald Kobolla
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Publication number: 20200013687Abstract: The invention relates to a power semiconductor device comprising a pin element which passes through a housing opening, comprising a support device, further comprising an elastic sealing device which is arranged on the support device, comprising a pressure device which is arranged on the sealing device, and comprising an electrically conductive sleeve. A first pressure element of the pressure device presses a first sealing element of the sealing device against a first support element of the support device in the axial direction of the pin element causes deformation of the first sealing element so that the first sealing element presses against the housing opening wall and against the sleeve in a perpendicular direction in relation to the axial direction of the pin element.Type: ApplicationFiled: May 17, 2019Publication date: January 9, 2020Applicant: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: JORG AMMON, Harald KOBOLLA, Stefan WEISS
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Patent number: 10391572Abstract: The apparatus serves for inhomogeneous cooling of a flat object with a first main face and a second main face opposite the first main face. The flat object is cooled by a cooling device from the direction of the first main face. On the second main face, a heating device locally acts upon a first partial face in such a way that the flat object is subjected to heat at said first partial face relative to a second partial face adjoining said first partial face in such a way that said first partial face is cooled more slowly in comparison with the second partial face and, during the cooling process, the second main face of the flat object therefore has an inhomogeneous temperature distribution at least in a partial time period of the cooling.Type: GrantFiled: March 15, 2016Date of Patent: August 27, 2019Assignee: SEMIKRON ELEKTRONIK GbmH & CO. KGInventors: Jörg Ammon, Harald Kobolla
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Patent number: 10270358Abstract: A submodule and an assembly include a switching device having a substrate, and printed conductors arranged thereupon. The submodule incorporates a first and a second DC voltage printed conductor, to which a first and a second DC voltage terminal element are connected in an electrically conductive manner, and an AC voltage printed conductor, to which an AC voltage terminal element is connected in an electrically conductive manner. The submodule further comprises an insulating moulding, which encloses the switching device in a frame-type arrangement. The first DC voltage terminal element, by means of a first contact section, engages with a first supporting body of the insulating moulding, and the AC voltage terminal element, by means of a second contact section, engages with a second supporting body of the insulating moulding.Type: GrantFiled: June 27, 2018Date of Patent: April 23, 2019Assignee: SEMIKRON ELEKTRONIK GmbH & CO. KGInventors: Harald Kobolla, Alexander Wehner, Ingo Bogen, Jürgen Steger, Peter Beckedahl
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Patent number: 10269755Abstract: A switching device has a substrate, a power semiconductor component arranged thereon, a connection device and a pressure device. The substrate has conductor tracks electrically insulated from each another. A power semiconductor component is arranged on one of the conductor tracks. The connection device is embodied as a film composite having an electrically conductive film and an electrically insulating film and forming a first and a second main surface. The switching device is connected in a circuit-conforming manner by the connection device, and a contact area of the first main surface of the power semiconductor component is connected to a first contact area of an assigned conductor track of the substrate in a force-locking and electrically conductive manner.Type: GrantFiled: July 24, 2017Date of Patent: April 23, 2019Assignee: SEMIKRON ELEKTRONIK GmbH & CO. KGInventors: Harald Kobolla, Jörg Ammon
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Publication number: 20190020285Abstract: A submodule and an assembly include a switching device having a substrate, and printed conductors arranged thereupon. The submodule incorporates a first and a second DC voltage printed conductor, to which a first and a second DC voltage terminal element are connected in an electrically conductive manner, and an AC voltage printed conductor, to which an AC voltage terminal element is connected in an electrically conductive manner. The submodule further comprises an insulating moulding, which encloses the switching device in a frame-type arrangement. The first DC voltage terminal element, by means of a first contact section, engages with a first supporting body of the insulating moulding, and the AC voltage terminal element, by means of a second contact section, engages with a second supporting body of the insulating moulding.Type: ApplicationFiled: June 27, 2018Publication date: January 17, 2019Applicant: SEMIKRON ELEKTRONIK GMBH & CO. KGInventors: Harald KOBOLLA, Alexander WEHNER, Ingo BOGEN, Jürgen STEGER, Peter BECKEDAHL