Dehn + Söhne Gmbh + Co Kg

Dehn Se

Dehn Se + Co Kg

Uwe Strangfeld

Stephan Hierl

Michael Waffler

Stefan Schön

Arnd Ehrhardt

Georg Wittmann

Stefanie Schreiter

Bernhard Krauss

Richard Daum

Sebastian Haas

Arnd Erhardt

Patrick Spangler

Stefan SCHÖN

Michael Zimmermann

Bernd Leibig

The invention relates to a pluggable device combination for protecting against surges, having a socket-like bottom part of U-shaped cross section for receiving at least one plug module which accommodates a surge protection element, latching means which act between the plug module and the socket-like bottom part being provided, said latching means comprising first means which are formed on a biased joint on opposite sides of the plug module and respectively interact in a latching manner with associated second means on the bottom part, the latching connection being breakable by pressing the joint at the faces of the plug module, and the respective joint transitioning into an actuation area, the actuation areas additionally being formed opposite each other on the plug module in such a way that imaginary connecting lines between the actuation areas would form the shape of an at least approximate triangle.

Pluggable device combination for protecting against surges

The present invention relates to a lightning-protection spark gap, comprising a housing (G); a first electrode (), and a second electrode (), which diverge from each other; wherein, between the first inner side (Ia) of the first electrode () and the second inner side (Ib) of the second electrode (), an ignition region (Z) and a subsequent propagation region (L) for an arc are formed; wherein the housing (G) forms an arc chamber (LK), which is arranged between the first and second electrodes () and which is delimited by a quenching chamber (); wherein, in the housing (G), at least one gas circulation channel (K) is configured, by means of which a gas flow escaping from the quenching chamber () can be returned to the arc chamber (LK) via a first cut-out (V; V'; V″; V′″) in the propagation region (L) of the first electrode ().

Lightning-protection spark gap

The invention relates to an arrangement for firing spark gaps with a trigger electrode which is located at or in one of the main electrodes and which is insulated from this main electrode, wherein the trigger electrode can be electrically connected to a further main electrode via at least one voltage-switching or voltage-monitoring element and there is an air gap between the trigger electrode and the further main electrode, wherein the trigger electrode forms a sandwich structure with an insulating layer and a layer made of a material with lower conductivity than the material of one of the main electrodes. Moreover, the insulating layer is designed as a thin foil or lacquer layer and the layer made of the material of lower conductivity is in contact with one of the main electrodes or rests on it. According to the invention, for discharging energetically weak overvoltage events without response of the spark gap formed between the main electrodes, the insulating layer of the sandwich structure is interrupted outside the firing area and/or an electrical component which influences the response behavior is connected between the trigger electrode and the associated main electrode.

Arrangement for firing spark gaps

A surge protection device comprises at least one disconnecting device provided in a housing, a heat-conducting element, an actuating element for actuating an indicating device, and a locking element, the heat-conducting element being in contact with the housing. The actuating element is fastened to the heat-conducting element by means of the locking element, and the fastening is configured such that when a predetermined temperature at the locking element is exceeded, the locking element is detached from the heat-conducting element and/or from the actuating element and releases the actuating element.

Overvoltage protection apparatus and modular overvoltage protection system

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 () 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 () is divided on the plane defined by the horn electrodes and has two half shells, and plug or screw connections () which lead out on the end face. According to the invention, with the exception of the sections of the plug or screw connections () leading out, the insulating material housing is surrounded on all sides by a cooling surface () which is near the housing and lies against the housing surface, and the cooling surface () is at least partly supported on webs () which are designed to conduct the gas flow on the outer surface of the half shells.

Non-rotationally symmetrical spark gap, in particular horn spark gap with deion chamber

The invention relates to a device for thermally disconnecting or tripping an overvoltage protection device, comprising: a locking element (A), on which a first force (F) acts, and which is fixed in such a way that same is released when a limit temperature is exceeded; and a slider (S) which is blocked in a first state (Z) by the fixed locking element (A), and on which a second force (F) acts in order to transfer same into a second state (Z) when the locking element (A) is released.

Device for thermally tripping or disconnecting an overvoltage protection device

The invention relates to an arrangement for overload protection for overvoltage protection equipment that has at least one voltage-limiting element and at least one voltage-switching element, and optionally with a back-up fuse, wherein the voltage-limiting element is in the form of a varistor and the voltage-switching element is in the form of a spark gap and these elements are connected in series. According to the invention, to protect against inadmissible pulsed currents, the voltage-limiting element in the series circuit has a monitoring spark gap, forming a bypass, connected in parallel with it. Furthermore, a monitoring device, e.g. a thermal monitoring device, is provided that bypasses both the monitoring spark gap and the voltage-switching element in the event of ageing effects, inadmissibly high mains voltages and/or low-energy, periodic, high-frequency overvoltages.

Arrangement for overload protection for overvoltage protection equipment

The invention relates to a spark gap arrangement comprising two preferably flat, opposing electrodes () that are held apart in a housing body (), said electrodes forming an arc combustion chamber, and comprising a gas-cooling and pressure-compensating chamber that is connected to the arc combustion chamber. According to the invention, the housing body () is formed from two half-shells (), each of which has first recesses that lie opposite each other in one plane for electrode connecting limbs (), said limbs being connected to a connecting terminal () on the outside of the housing body. Each of the half-shells () has a first space for receiving an insulating material support () for the electrodes () and a second space for receiving a cooling block (), which has channels, with a high heat capacity. Furthermore, a U-shaped clamp () that is connected to the half-shells in a mechanical and pressure-resistant manner is provided at least in the receiving region of the cooling block () such that said clamp encompasses the half-shells () on the outside.

Spark gap arrangement comprising two preferably flat, opposing electrodes that are held apart in a housing body

The invention relates to a horn spark gap with a deion chamber () with a non-blowout design having a multi-part insulating housing as supporting and accommodating body for the horn electrodes () and the deion chamber () and means for conducting the arc-induced gas flow, wherein the insulating housing is divided in the plane spanned by the horn electrodes and forms a first and a second half-shell. According to the invention, the horn electrodes () have an asymmetrical form. The arc running region () between the electrodes is delimited in the direction of the deion chamber by a plate-shaped insulating material (), wherein the plate-shaped insulating material () is inserted into a respective first shaped portion of the respective half-shell in a form-fitting manner. Furthermore, the first shaped portions accommodate a ferromagnetic deposit () of the arc running region ().

Horn spark gap with a deion chamber

The invention relates to an arrangement for igniting spark gaps with a trigger electrode T which is located on or in one of the main electrodes Hand is insulated with respect to this main electrode H, wherein the trigger electrode T is electrically connected to one of the other main electrodes Hby means of at least one voltage-switching or voltage-monitoring element and there is an air gap between the trigger electrode T and the other main electrode H. According to the invention, the trigger electrode T forms a sandwich structure with an insulation section I and a layer which is composed of a material M with a lower conductivity than the material of one of the main electrodes, wherein this sandwich structure represents a layered dielectric with the order of a first partial capacitor Cwith the dielectric of the insulation section I and a second partial capacitor Cwith the material M as dielectric.

Growing community of inventors

Nürnberg, Germany

Uwe Strangfeld