Isabellenhuette Heusler Gmbh & Co. Kg

Isabellenhutte Heusler Gmbh & Co. Kg

Bender Gmbh & Co Kg

Schunk Sintermetalltechnik Gmbh

Isabellenhuette Meusler Gmbh & Co. Kg

Heraeus Deutschland Gmbh & Co Kg

Jan Marien

Alexander Wassmann

Ullrich Hetzler

Benjamin Seel

Jens Hartmann

Eckhard Broeckmann

Michael Pollmann

Christina Modes

Mario Lehr

Andreas Lepper

Carsten Weiss

Felix Lebeau

Benedikt Kramm

Andreas Baum

Marcus Escher

Florian Bernhardt

Paul Harke

Siegfried Herb

Daniel Zuckermann

Joerg Ziesche

Matthias Gruen

Eckhard Wendt

Steffen Burk

Daniel Woelfel

Ingolf Langer

Phillip Prinz

Petra Schmidt

Sieglinde Mueller

Alexander Witt

Jessica Reitz

Andreas Laufer

Daniel WÖLFEL

Eckhard BRÖCKMANN

Matthias GRÜN

Jochen Langer

Melanie Bawohl

Anja Desch

Paul Kalemba

Roland Reul

The invention relates to a current measuring apparatus for redundant measurement of an electric current (I) with a low-resistance current measuring resistor () for current measurement according to the four-lead technique and with a magnetic field sensor (). The invention provides that the electric current (I) to be measured in the current measuring apparatus is divided into a main current path with a main current (I) and a secondary current path with a secondary current (I), the main current path and the secondary current path together forming a parallel circuit. The low-resistance current measuring resistor () is arranged in the main current path and has the main current (I) flowing through it, while the magnetic field sensor () is arranged in the secondary current path and measures the secondary current (I).

Current measuring apparatus with redundant current measurement

The invention relates to a sensor(S), in particular for an electrical network of an electrically driven vehicle, in particular in an electric car. The sensor according to the invention comprises first of all a measuring device (ME) for current measurement and/or for voltage measurement in the electrical network, in particular with a low-resistance current sense resistor for current measurement according to the four-wire technique. Furthermore, the sensor(S) according to the invention comprises an integrated insulation monitoring device (ME, IQ, Rk, S) for monitoring an electrical insulation of high-side and/or low-side of the electrical network. The sensor(S) according to the invention is characterized by the fact that the insulation monitoring device (ME, IQ, Rk, S) operates actively and impresses measurement pulses into the electrical network for insulation monitoring.

Sensor for a vehicle electrical system

The invention relates to a current measuring resistor () for measuring an electrical current, in particular in the kA range, in a high-voltage network. The current measuring resistor () according to the invention comprises two connection parts () for conducting the electrical current in and out and a resistance element () made of a low-impedance resistive material. The resistance element () is arranged between the two connection parts () in the direction of current flow and is joined to the two connection parts (), such that the electrical current to be measured flows through the resistance element () during operation and produces a voltage drop across the resistance element (). According to the invention, the connection parts () and the resistance element () each have a substantially round cross section, in particular a substantially circular cross section, in a section plane perpendicular to the direction of current flow of the electrical current.

Current measuring resistor and associated production method

The invention relates to a production method for an electrical resistance element (for example a shunt) with the following steps: &#x2014;providing a resistance alloy in powder form, and&#x2014;forming the resistance element from the powdered resistance material. The invention also relates to a correspondingly produced resistance element.

Production method for an electrical resistance element and corresponding resistance element

The invention concerns a manufacturing method for an electrical resistor (), in particular for a low-resistance current measuring resistor, with the following steps (S-S): Furthermore, the invention includes an appropriately manufactured resistor and a corresponding production plant.

Production method for a resistor, resistor and corresponding production installation

The invention relates to a connecting element (), in particular a screw () or a nut (), for mechanically connecting components (), the connecting element () consisting at least partially of a material with a mechanical tensile strength of at least 350 MPa. According to the invention, the material of the connecting element () has an electrical conductivity of at least 50% IACS. The invention also relates to a corresponding production method for a connecting element () of this type.

Connecting element, in particular screw or nut

The invention relates to a coupling for electrically and mechanically connecting medium-voltage or high-voltage components, in particular for voltages of 1 kV to 52 kV, comprising a first connecting piece for mechanically and electrically connecting a medium-voltage or high-voltage component, in particular for connecting to a complementary connecting piece of a bushing of a switchgear cabinet, and a second connecting piece for mechanically and electrically connecting another medium-voltage or high-voltage component, in particular for connecting to a complementary connecting piece of an electrical cable, wherein the two connecting pieces of the coupling belong to complementary connection types, which fit together mechanically, and comprising a low-resistance current sensing resistor, which is built into the coupling and electrically connected between the first connecting piece and the second connecting piece in order to measure a current flow between the first connecting piece and the second connecting piece.

Medium-voltage or high-voltage coupling

The invention relates to a punched part for producing an electrical resistor, in particular a current measuring resistor, comprising a resistor element () consisting of a low-resistance resistive material (for example Manganin&#xae;) and two electrical connection parts () consisting of a conductor material (for example copper), wherein the resistor element () is arranged between the two electrical connection parts () in the direction of current flow in such a way that the electrical current flows through the resistor element (). In accordance with the invention, the punched part additionally has a landing area () for providing an integrated circuit () on the landing area () of the punched part. Furthermore, the invention comprises a current sensor comprising such a punched part and a corresponding production method.

Punched part for producing an electrical resistor, current sensor and corresponding production method

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Herborn, Germany

Jan Marien