-
公开(公告)号：US12089298B2
公开(公告)日：2024-09-10
申请号：US17132692
申请日：2020-12-23
发明人： Ahmad Asafi , Stefan Plewnia , Kai-Fabian Bürkle , Rüdiger Freitag , Michael Niederer , Müge Pilavtepe-Christ
CPC分类号： H05B3/16 , B60H1/2215 , H05B3/03 , H05B3/06 , B60H2001/2278 , H05B2203/016 , H05B2203/017 , H05B2203/02 , H05B2203/023
摘要： A heat-generating element of an electric heating device includes a PTC element, conductor tracks abutting surfaces of the PTC element, and an adhesive which connects the conductor tracks to the PTC element. The conductor track has several contact projections which protrude from an abutment surface of the conductor tracks. The contact projections form a contact surface which abuts the surface in an electrically conductive manner with a free space between the surface and the abutment surface, in which the adhesive is accommodated. Also disclosed is a method in which the contact projections are formed from initially planar conductor track, an adhesive is applied to the abutment surface between the contact projections, a masking covering the contact surfaces is removed, and the conductor track is glued to a PTC element with the adhesive accommodated between the surface and the abutment surface.
-
公开(公告)号：US11092358B1
公开(公告)日：2021-08-17
申请号：US16791465
申请日：2020-02-14
发明人： Rüdiger Freitag
摘要： An electrical heating device for a motor vehicle has a housing which encloses a circulation chamber, The housing has inlet and outlet openings for a medium to be heated which communicate with the circulation chamber. An electrically insulated PTC element projects into the circulation chamber and is electrically conductively connected to conductor elements leading to connections of different polarity, The housing forms a connection chamber in which the connections to the PTC element are electrically connected. The connection chamber and the circulation chamber are separated from one another and are sealed against each other. A flat tube is curved in a U-shape for a good heat discharge. The flat tube has opposite legs which each contain at least one PCT element and against which rests at least one heat-emitting element which is exposed in the circulation chamber.
-
公开(公告)号：US20210204365A1
公开(公告)日：2021-07-01
申请号：US17132692
申请日：2020-12-23
发明人： Ahmad Asafi , Stefan Plewnia , Kai-Fabian Bürkle , Rüdiger Freitag , Michael Niederer , Müge Pilavtepe-Christ
摘要： A heat-generating element of an electric heating device includes a PTC element, conductor tracks abutting surfaces of the PTC element, and an adhesive which connects the conductor tracks to the PTC element. The conductor track has several contact projections which protrude from an abutment surface of the conductor tracks. The contact projections form a contact surface which abuts the surface in an electrically conductive manner with a free space between the surface and the abutment surface, in which the adhesive is accommodated. Also disclosed is a method in which the contact projections are formed from initially planar conductor track, an adhesive is applied to the abutment surface between the contact projections, a masking covering the contact surfaces is removed, and the conductor track is glued to a PTC element with the adhesive accommodated between the surface and the abutment surface.
-
公开(公告)号：US11913676B2
公开(公告)日：2024-02-27
申请号：US16856724
申请日：2020-04-23
发明人： Kurt Walz , Michael Niederer , Rüdiger Freitag
CPC分类号： F24H1/121 , H05B3/50 , H05B2203/02 , H05B2203/021
摘要： A PTC heating element has a casing that joins as a unit at least one PTC element, conductor paths electrically connected to the PTC element, and insulating layers bearing, in a heat-conductive manner against the PTC element. The PTC heating element also has contact strips which project over itself and which are electrically conductively connected to the conductor paths for energizing the PTC element with different polarities. The casing forms a receptacle space that receives the PTC element, the conductor paths, and the insulating layers. In order to improve heat decoupling from the PTC element, the receptacle, in a cross-sectional view, is defined by two oppositely disposed inner surfaces covering the PTC element and concave cavities, adjoining the inner surfaces and forming the longitudinal edges of the casing, the diameter of which is greater than the distance between the inner surfaces. The electric heating device has at least one PTC heating element arranged in a circulation chamber. Also disclosed is a method in which the casing is first formed, the PTC element, the conductor paths and the insulating layers are then introduced through an opening of the casing into the receptacle space, and the casing then is deformed by deforming forces acting upon edge regions of the casing, so that oppositely disposed inner surfaces of the casing are abutted against the insulating layers.
-
公开(公告)号：US20240053057A1
公开(公告)日：2024-02-15
申请号：US18232655
申请日：2023-08-10
发明人： Rüdiger Freitag , Ulrich Mundt , Michael Clade
CPC分类号： F24H3/0447 , H05B3/06 , F24H3/0452 , H05B2203/02 , H05B2203/017
摘要： A PTC heating device has contact surfaces formed by a metallization, and also has first and second contact elements which are to be assigned different polarity and which are electrically contacted with the contact surfaces. Both of the first and second contact surfaces are circumferentially sealed by a frame that follows the contour of the respective contact surface and that is made of an electrically non-conductive adhesive coating. In the method of making the PTC heating device, the contact surfaces of the PTC element are contacted in an electrically conductive manner with the two contact elements, each of which has a strand an electrically non-conductive adhesive coating following the contour of the contact surfaces. During this contacting, the adhesive coating is displaced in such a manner that both contact surfaces are circumferentially sealed by a frame formed by the adhesive coating.
-
公开(公告)号：US20240011667A1
公开(公告)日：2024-01-11
申请号：US18218321
申请日：2023-07-05
CPC分类号： F24H3/0429 , F24H3/0476 , F24H3/0441 , H05B3/06 , B21D22/022 , F24H2250/04 , H05B2203/017
摘要： An electric heating assembly of an electric heating device includes a metal housing which forms a pocket in which at least one PTC element, contact sheets abutting surfaces of the PTC element and insulating layers which are arranged between the contact sheets and inner surfaces of the pocket. The contact sheets each have contact projections which project in the direction of one of the contact surfaces of the PTC element and are surrounded by an adhesive which connects the contact sheet to the PTC element. In order to improve heat extraction from the electrical contact of the PTC element, front end regions of the contact projections abutting against the PTC element are plastically deformed against the surface of the PTC element. Also disclosed is a method of making a heating device.
-
公开(公告)号：US20210144812A1
公开(公告)日：2021-05-13
申请号：US17091070
申请日：2020-11-06
发明人： Michael Niederer , Rüdiger Freitag
摘要： A PTC heating device for introduction into a receiving pocket of an electric heating device includes at least one PTC element, a conductor track that is electrically connected to the PTC element, and insulating layers that are abutted in a thermally conductive manner against the PTC element. A frame-shaped casing joins the at least one PTC element, the conductor track, and the insulating layers as a unit. The frame-shaped casing has a leading frame member with elastic guide tabs which, in an initial assembly state, project on oppositely disposed sides of the frame-shaped casing over the heat-emitting open surface respectively associated with them, which are inclined obliquely from the leading frame member in a direction of the open surface, and which are elastically pivotable. During heating device assembly, the PTC heating device is centered and guided by the elastic guide tabs when introduced into a heating rib of a heating chamber.
-
公开(公告)号：US20200340708A1
公开(公告)日：2020-10-29
申请号：US16856724
申请日：2020-04-23
发明人： Kurt Walz , Michael Niederer , Rüdiger Freitag
摘要： A PTC heating element has a casing that joins as a unit at least one PTC element, conductor paths electrically connected to the PTC element, and insulating layers bearing, in a heat-conductive manner against the PTC element. The PTC heating element also has contact strips which project over itself and which are electrically conductively connected to the conductor paths for energizing the PTC element with different polarities. The casing forms a receptacle space that receives the PTC element, the conductor paths, and the insulating layers. In order to improve heat decoupling from the PTC element, the receptacle, in a cross-sectional view, is defined by two oppositely disposed inner surfaces covering the PTC element and concave cavities, adjoining the inner surfaces and forming the longitudinal edges of the casing, the diameter of which is greater than the distance between the inner surfaces. The electric heating device has at least one PTC heating element arranged in a circulation chamber. Also disclosed is a method in which the casing is first formed, the PTC element, the conductor paths and the insulating layers are then introduced through an opening of the casing into the receptacle space, and the casing then is deformed by deforming forces acting upon edge regions of the casing, so that oppositely disposed inner surfaces of the casing are abutted against the insulating layers.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.014 秒)
