公开(公告)号：US11764025B2

公开(公告)日：2023-09-19

申请号：US17485963

申请日：2021-09-27

申请人： DEHN SE

发明人： Arnd Ehrhardt ,  Peter Zahlmann ,  Sven Wolfram

IPC分类号： H01H89/00 ,  H01H39/00 ,  H01H85/00 ,  H01H85/12 ,  H01H85/18

CPC分类号： H01H89/00 ,  H01H39/006 ,  H01H85/0039 ,  H01H85/12 ,  H01H85/185

摘要： The invention relates to a triggered fuse for low-voltage applications for protecting devices that can be connected to a power supply system, in particular surge protection devices, consisting of at least one fusible conductor which is located between two contacts and is arranged in a housing, and also consisting of a trigger device for controlled disconnection of the fusible conductor in the event of malfunctions or overload states of the respective connected device, wherein an arc quenching medium is introduced into the housing. The at least one fusible conductor has a plurality of conventional electrical bottlenecks, which are designed for the rated load of the respective fuse. At least one further additional geometric bottleneck is provided, which is disconnectable by rupturing depending on the trigger unit when applied by tension.

公开(公告)号：US20230036343A1

公开(公告)日：2023-02-02

申请号：US17791120

申请日：2021-02-26

申请人： DEHN SE

发明人： Florian Gäck ,  Julius Schrafl ,  Markus Götz ,  Herold Hans

IPC分类号： H01H71/10 ,  H01T4/06 ,  H01H71/02

摘要： The invention provides a surge protector, in particular for information technology and/or communications technology systems, which is equipped with: a housing (ST, BT; GT); a first input terminal (E1) for applying a first external voltage signal; a second input terminal (E2) for applying a second external voltage signal; a first output terminal (A1) for outputting the first external voltage signal; a second output terminal (A2) for outputting the second external voltage signal; a surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2), at least part of which is provided on a circuit board (P) located in the housing (ST, BT; G); a first current path (ST1) for conducting the first external voltage signal from the first input terminal (E1) to the first output terminal (A1) bypassing the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a second current path (ST2) for conducting the second external voltage signal from the second input terminal (E2) to the second output terminal (A2) bypassing the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a third current path (ST3) for conducting the first external voltage signal from the first input terminal (E1) to the first output terminal (A1) via the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a first switching contact device (F1) for opening and closing the first current path (ST1); a first electrical surge protection component (G1) which is connected between the first and third current paths (ST1, ST3); and a mechanical tripping device (AU; B, S, EF, SL) for opening the first switching contact device (F1) when in a non-tripped state and for closing the first switching contact device (F1) in order to interrupt the third current path (ST3) when in a tripped state at a tripping current in the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2) caused by exceeding a nominal parameter and/or by degradation of the components.

公开(公告)号：US20220263308A1

公开(公告)日：2022-08-18

申请号：US17609978

申请日：2020-05-06

申请人： DEHN SE + CO KG

发明人： Franz Schork ,  Thomas Böhm ,  Andreas Waigel ,  Stefan Dietweger ,  Sabine Wildfeuer

IPC分类号： H02H3/10 ,  H02H1/00

摘要： The invention relates to a system for protecting an electrical source or an electrical load, having a module comprising an input and an output, and an electronic safety device for the load that can be connected to the source. The module also comprises a voltage monitoring unit, a current monitoring unit, and semiconductor switching units and controllers associated therewith. According to the invention, in order to selectively apply the protection to the source or the protection to the load, a unit for electrical mirroring on the circuit side is provided so that in the event of source protection, the current monitoring unit is applied at the input end and the voltage monitoring unit is applied at the output end, and in the event of load protection, the voltage monitoring unit is applied at the input end and the current monitoring unit is applied at the output end.

公开(公告)号：US20220166152A1

公开(公告)日：2022-05-26

申请号：US17599174

申请日：2020-03-25

申请人： DEHN SE + CO KG

发明人： Johanna Lang

IPC分类号： H01R4/66 ,  H01R4/48 ,  H01R4/64 ,  H01R11/28

摘要： The invention relates to a connection head piece for contacting an insulated down conductor in the external lightning protection, comprising a sleeve having an axially extending first inner diameter section adjusted to the outer diameter or cross-section of the insulated down conductor for receiving one end of the insulated down conductor, and having a second inner diameter section extending axially adjacent thereto and adjusted to the outer diameter or cross-section of a stripped, exposed conductor end of the insulated down conductor, and means for fastening the stripped, exposed conductor end in the second inner diameter section. According to the invention, a static friction-generating means is formed in the first inner diameter section of the sleeve and flexibly projects into the interior of the sleeve such that a nonpositive connection is established between an outer sheath of the insulated down conductor and the sleeve upon insertion of the down conductor.

公开(公告)号：USD952576S1

公开(公告)日：2022-05-24

申请号：US29745354

申请日：2020-08-05

申请人： DEHN SE + Co KG

设计人： Michael Hess ,  Florian Gäck ,  Julius Maria Schrafl

公开(公告)号：USD952572S1

公开(公告)日：2022-05-24

申请号：US29745303

申请日：2020-08-05

申请人： DEHN SE + Co KG

设计人： Michael Hess ,  Florian Gäck ,  Julius Maria Schrafl

公开(公告)号：US11295914B2

公开(公告)日：2022-04-05

申请号：US16976664

申请日：2019-10-15

申请人： DEHN SE + CO KG

发明人： Stephan Hierl ,  Michael Waffler

IPC分类号： H01H37/76 ,  H01H37/22

摘要： An overvoltage protection device has a plurality of overvoltage arresters and a disconnecting apparatus. For each of the overvoltage arresters a blocking element is present, each of which is arranged so as to block the path of movement of a mechanically preloaded wedge slide having a wedge bevel. A rocker lever arrangement has first lever arms corresponding to the number of wedge slides and at least one second lever arm for blocking or releasing a displacement element, wherein ends of the first lever arms each have a surface for contacting the respective wedge bevel of the wedge slides in such a way that, when the respective path of movement is released, at least one of the wedge slides lifts the corresponding first lever arm with its wedge bevel, as a result of which the second lever arm releases the displacement element.

公开(公告)号：US11114823B2

公开(公告)日：2021-09-07

申请号：US16652070

申请日：2019-04-09

申请人： DEHN SE + CO KG

发明人： Uwe Strangfeld ,  Stephan Hierl ,  Stefan Schön

IPC分类号： H01T1/02 ,  H01T4/04 ,  H01T4/14

摘要： The invention relates to a non-rotationally symmetrical spark gap, in particular a horn spark gap with a deion chamber, a multi-part insulating material housing (1) as a support and receiving body for the horn electrodes and the deion chamber, means for conducting the gas flow related to the arc, wherein the insulating material housing (1) is divided on the plane defined by the horn electrodes and has two half shells, and plug or screw connections (4, 5) which lead out on the end face. According to the invention, with the exception of the sections of the plug or screw connections (4, 5) leading out, the insulating material housing is surrounded on all sides by a cooling surface (14) which is near the housing and lies against the housing surface, and the cooling surface (14) is at least partly supported on webs (8) which are designed to conduct the gas flow on the outer surface of the half shells.

公开(公告)号：US20210066009A1

公开(公告)日：2021-03-04

申请号：US16957825

申请日：2018-12-03

申请人： DEHN SE + CO KG

发明人： Arnd Ehrhardt ,  Klaus Bühler

IPC分类号： H01H37/76 ,  H01H39/00

摘要： The invention relates to a short-circuiting device for use in low-voltage and medium-voltage systems for the protection of property and persons, comprising: a switching element, which can be operated by the tripping signal of a fault detection device; two mutually opposite contact electrodes having power supply means, which contact electrodes can be brought into contact with an electrical circuit having connection points at different potential; furthermore, in at least one of the contact electrodes, a movable contact part, which is under mechanical preload and executes a movement to the further contact electrode with the assistance of spring force in the event of a short circuit; and a sacrificial element as a spacer between the contact electrodes, with an electrical connection between the sacrificial element and the switching element on the one hand and one of the contact electrodes on the other hand, in order to deliberately cause current-flow-induced thermal deformation or destruction of the sacrificial element. According to the invention, the movable contact part is in the form of a hollow cylinder which is closed on one side, and a spring for generating preload is inserted in the hollow cylinder. The hollow cylinder is movably guided in a complementary cutout in the first contact electrode, a sliding contact thus being formed. In the region of the base of the closed hollow cylinder, the cylinder wall of said hollow cylinder transitions into a cone at the outer circumference. Furthermore, a first pin-like extension, opposite to which a second pin-like extension insulated from the contact electrodes is situated, extends within the hollow cylinder, proceeding from the base. The sacrificial element, in the form of a bolt or screw, is arranged between the first and the second pin-like extension. A cutout, which has an internal cone and is matched to the external cone of the movable contact, is provided in the second contact electrode. The external cone and the internal cone form a bounce-free short-circuit contact region having frictional locking and interlocking connection on account of plastic deformation which occurs. Furthermore, according to the invention the switching element is designed as an auxiliary short-circuiter on the basis of an electric match.

公开(公告)号：US20210025927A1

公开(公告)日：2021-01-28

申请号：US17040840

申请日：2018-05-23

申请人： DEHN SE + CO KG

发明人： Peter Zahlmann ,  Josef Birkl ,  Thomas Böhm ,  Klaus Bühler ,  Johannes Maget ,  Arnd Ehrhardt ,  Eduard Shulzhenko

IPC分类号： G01R19/165 ,  G01R29/08

摘要： The invention relates to a device for detecting electrical currents on or in the vicinity of electrical conductors with at least one Reed switch as a magnetically responsive switch, which is arranged in the vicinity of the electrical conductor such that, when there is a significant current flow through the conductor, the magnetic field created triggers the switch and initiates an evaluation electronics connected to the switch. For the detection of surge current variables and the differentiation between long-term pulsed currents and short-term pulsed currents, a plurality of Reed switches are arranged at a predetermined distance from the electrical conductor, wherein the evaluation electronics determines the response and the switching times of the respective Reed switches, determines die surge current variable from the allocation of the determined values to the respective Reed switch and the pulse form from the switching time, wherein, for the purpose of adjusting the response behavior, at least one of the Reed switches comprises a shielding for influencing the magnetic field acting on the respective Reed switch.