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公开(公告)号：US20230298802A1
公开(公告)日：2023-09-21
申请号：US18185405
申请日：2023-03-17
发明人： Hugues NJIENDE , Ralf GRIEGER , Sergey TIKHONOV
CPC分类号： H01F27/26 , H01F27/306 , H01F27/292
摘要： The present disclosure concerns a choke assembly (1), especially for an electric conversion device (100), comprising at least one rake-shaped core (2) respectively including a body portion (3), at least two winding legs (4), around each of which at least one electrical winding (5) is wound, and at least one return leg (6), wherein the at least two winding legs (4) and the at least one return leg (6) extend from the body portion (3) in a first direction (11), and at least one yoke core (7) connected to at least one rake-shaped core (2) and configured to close a magnetic circuit (8) between the at least two winding legs (4) and the at least one return leg (6) of the at least one rake-shaped core (2). The present disclosure also concerns an electric conversion device comprising the choke assembly (1).
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公开(公告)号：US20230361687A1
公开(公告)日：2023-11-09
申请号：US18312611
申请日：2023-05-05
发明人： Hugues NJIENDE
CPC分类号： H02M3/33584 , H01F27/38 , H02M1/0064 , B60L53/20 , B60L2210/10
摘要： The present disclosure provides a bidirectional LLC resonant converter and an integrated magnetic component for such a bidirectional LLC resonant converter. In order to increase the power density of such a converter, the I cores of the corresponding conventional converter are removed and the remaining windings (P1, S1, Lr1, Lr2) for the transformer and the series resonant chokes are arranged and connected such that the magnetic fluxes generated in the yokes of the transformer core elements (E3, E4) at least partially compensate each other. In another example, the windings and the core elements of the series resonant chokes are removed as well and the series resonant inductances are implemented by windings air gaps provided between the primary and the secondary windings wound on the transformer core elements.
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公开(公告)号：US20230109971A1
公开(公告)日：2023-04-13
申请号：US17938670
申请日：2022-10-06
发明人： Hugues NJIENDE , Ralf GRIEGER
摘要： The disclosure concerns a magnetic component and a power converter including the same. The magnetic component includes at least one magnetic core, where at least one gap is formed between end surfaces, especially opposing end surfaces, of the magnetic core(s). The magnetic component further includes at least one electrical winding surrounding at least a part of the at least one magnetic core, and a shielding device for shielding fringing fields of the at least one gap. The shielding device includes: a holding unit attached to the at least one magnetic core and/or to the at least one electrical winding in a periphery of the at least one gap; and at least one shield member attached to the holding unit. The at least one shield member is configured to shield gap fringing fields in the periphery of the gap.
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公开(公告)号：US20240177926A1
公开(公告)日：2024-05-30
申请号：US18522278
申请日：2023-11-29
发明人： Hugues NJIENDE , Ralf GRIEGER , Dieter HELDT
CPC分类号： H01F30/12 , H01F3/14 , H01F27/24 , H01F27/306
摘要： The present application concerns a transformer assembly, especially for an electric conversion device, including at least one rake-shaped core member each of the at least one rake-shaped core member including a body portion, at least three winding legs, and at least two return legs, wherein each of the at least three winding legs is wounded by at least one electrical winding and the at least three winding legs and the at least two return legs being connected magnetically to the body portion; wherein at least a first winding leg and at least a second winding leg form at least one winding leg pair, and at least a first electrical winding of the first winding leg is electrically connected in series with at least a second electrical winding. The present application also concerns an electric conversion device including at least one transformer assembly.
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公开(公告)号：US20230230760A1
公开(公告)日：2023-07-20
申请号：US18155764
申请日：2023-01-18
发明人： Hugues NJIENDE , Sergey TIKHONOV
CPC分类号： H01F27/306 , H01F38/14 , H01F27/263 , H02J50/10
摘要： The present disclosure concerns a magnetic component (1), especially for a wireless charging transformer, including a magnetic core (2), at least one flat pre-wound major electrical coil (3) disposed on the magnetic core (2) and at least one minor electrical coil (4) wound around the magnetic core (2). The present disclosure also concerns a transformer (100) including the magnetic component (1) as a primary magnetic component (101).
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公开(公告)号：US20200234867A1
公开(公告)日：2020-07-23
申请号：US16736456
申请日：2020-01-07
发明人： Hugues NJIENDE , Sergey TIKHONOV , Ralf GRIEGER
摘要： An integrated magnetic component comprises a common mode inductance and a differential mode inductance. The common mode inductance is formed by a common mode core surrounding a winding window and at least two windings wound around the common mode core and through the winding window. The differential mode inductance is formed by the at least two windings and a differential mode core being spaced from the common mode core by a gap. The differential mode core comprises at least one surface being adjacent to each of the at least two windings. Further, a filter for attenuating electromagnetic interference comprises an integrated magnetic component according to the invention. Even further, the integrated magnetic component according to the invention is used for attenuating electromagnetic interference, preferably in a vehicle, a data center, or a telecommunication unit. A method for manufacturing an integrated magnetic component according to the invention comprises two steps. One step comprises providing a common mode inductance formed by a common mode core surrounding a winding window, and at least two windings wound around the core and through the winding window. Another step comprises providing a differential mode core and spacing it from the common mode core by a gap, such that at least one surface of the differential mode core is adjacent to each of the least two windings.
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公开(公告)号：US20240177903A1
公开(公告)日：2024-05-30
申请号：US18522268
申请日：2023-11-29
发明人： Hugues NJIENDE , Ralf GRIEGER , Sergey TIKHONOV
CPC分类号： H01F3/14 , H01F27/26 , H01F2003/103
摘要： The disclosure concerns a magnetic component comprising at least one magnetic core, wherein at least one gap is formed between surfaces, especially opposing end surface(s) and/or side surface(s), of the magnetic core(s), wherein a direction extending between said surfaces is defined as a gap extension direction, a gap distribution device comprising at least one magnetic piece and at least one holding frame configured to hold the at least one magnetic piece, wherein the gap distribution device is arranged within said at least one gap of the at least one magnetic core such that the at least one magnetic piece is arranged within said gap, and at least one electrical winding wound around the at least one magnetic core and/or the at least one holding frame of the gap distribution device.
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公开(公告)号：US20230125969A1
公开(公告)日：2023-04-27
申请号：US18048450
申请日：2022-10-21
发明人： Hugues NJIENDE , Eugen SCHWAN , Sergey TIKHONOV
摘要： The present disclosure concerns a method of manufacturing an electronic device, where the electronic device includes at least one electronic component with at least one electrical winding, and at least one heat dissipation mass coating, and the method includes inserting the at least one electronic component into a cavity; pouring, before or after the insertion of the electronic component, a heat dissipation mass into the cavity so as to at least partially fill the cavity and at least partially cover the electronic component with the heat dissipation mass; removing the electronic device, namely, the electronic component covered by the heat dissipation mass coating, from the cavity. The present disclosure also concerns an electronic apparatus including at least one electronic device manufactured by the foregoing method.
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公开(公告)号：US20200234868A1
公开(公告)日：2020-07-23
申请号：US16735736
申请日：2020-01-07
发明人： Ralf GRIEGER , Hugues NJIENDE
摘要： According to the invention a packaged inductive component comprises an inductive element and an electrically insulating packaging enclosing the inductive element. The packaging comprises a first area consisting of a thermally conductive material and a second area consisting of a thermally insulating material. The first area has a first surface being an outside surface of the packaged inductive component. The outer surfaces of the packaged inductive component are free of any electrical potential. The packaged inductive component allows for an improved heat dissipation. In particular, heat generated by power losses in the inductive element dissipates through the first area of the packaging to an outside surface of the packaged inductive component. This leads to an affordable packaged inductive component. The inductive element can be for example an inductor or a transformer.
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