Isabellenhuette Heusler Gmbh & Co. Kg

Isabellenhutte Heusler Gmbh & Co. Kg

Isabellenhutte Heusler Gmbh Kg

Isabellenhuette Heusler Gmbh & Co., Lg

Ullrich Hetzler

Jan Marien

Michael Pollmann

Alexander Wassmann

Marcus Escher

Paul Harke

Eckhard Wendt

The invention relates to a measuring arrangement () for measuring an electric current (I) in the high-current range, in particular in the current range of more than 1 kA, having a low-resistance current sense resistor () for measuring current in accordance with four conductor technology and a physically integrated measuring circuit () for measuring the voltage which is dropped across the current sense resistor (). The invention provides several pairs of voltage taps for measuring the electrical voltage which is dropped across the resistor element (), wherein the pairs of voltage taps are connected to the measuring circuit (). The invention further provides two busbar connections () for connection to two busbars (). Corrections of the temperature coefficient, the thermoelectric voltage and the offset and also a high sampling rate and resolution allow high-resolution measurement of a DC current in a high AC current.

Measuring arrangement for measuring an electric current in the high-current range

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 concerns a current measuring device for measuring an electric current (Ip, In) according to the four-wire technology with a low resistance current measuring resistor (RCu, RCu, R). The invention also provides for a compensating resistor (Rp) consisting of a fixed resistor connected in parallel with the resistor element (R) of the low-resistance current measuring resistor (RCu, RCu, R) in order to at least partially compensate for the temperature dependence of the resistance value, so that the current measuring device has two current paths, namely a main current path through the resistor element (R) on the one hand and a secondary current path through the compensating resistor (Rp) on the other hand.

Current measuring device

The invention concerns a resistor, in particular a low-resistance current measuring resistor, having two connecting parts made of a conductor material and a resistor element made of a resistance material inserted between the connecting parts, the resistance material having a specific thermal force which generates a specific thermoelectric voltage in the event of a temperature difference between the resistor element on the one hand and the connecting parts on the other hand. The invention additionally provides for a compensating element which in operation generates a thermoelectric voltage which at least partially compensates for the thermoelectric voltage generated by the resistor element. Furthermore, the invention includes a corresponding manufacturing process.

Resistor and method for the production thereof

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 U-shaped resistor (), in particular a low-resistance current-measuring resistor (), comprising a first connection part () made of a conductive material having a first current contact surface for conducting an electrical current (I) into the resistor (), and comprising a second connection part () made of a conductive material having a second current contact surface for conducting the current (I) out of the resistor (), as well as comprising a resistor element () made of a resistor material, wherein the resistor element () is arranged in the direction of current flow between the first connection part () and the second connection part (), such that the electrical current (I) flows through the electrical resistor (). The current (I) perpendicularly enters or leaves the connections parts () via their outer surfaces. In addition, the voltage taps are attached to the inner side of the U-shaped resistor (), and contact the connection parts () close to the transition to the resistor element ().

Resistor, in particular low-resistance current measuring resistor

The invention relates to a measuring resistor (), in particular a low-resistance current-measuring resistor, comprising two terminal parts () that consist of a conductor material for introducing and discharging a current, and a resistor element () that consists of a resistor material, wherein the resistor element () is arranged between the two terminal parts () in the direction of the current and current flows through the resistor element (). According to one variant of the invention, the measuring resistor () has several pairs of voltage-measuring contacts () for measuring the voltage falling across the resistor element () in order to be able to compensate metrologically for inhomogeneities in the current density. In contrast, according to another variant of the invention, one pair of voltage-measuring contacts () is arranged at a location at which the measuring resistor () exhibits neither a capacitive behavior nor an inductive behavior, such that the current flowing through the measuring resistor () and the voltage across the voltage-measuring contacts () are substantially in phase.

Measuring resistor and corresponding measuring method

The invention relates to a composite material strip for producing an electric component, in particular a resistor, in particular a low-resistance current-measuring resistor, comprising a first material strip () made of a copper-containing material, in particular a copper-containing conductor material, for later forming a first connection part of the electric component and comprising a second material strip () for later forming a second connection part of the electric component. The first material strip () and the second material strip () are electrically and mechanically connected together along a longitudinal seam, wherein the second material strip () consists of an aluminum-containing material, in particular an aluminum-containing conductor material. The invention further relates to a corresponding production method and to a corresponding component.

Electric component, method for producing the electric components, and composite material strip for producing the component

The invention relates to an electronic component (), in particular a current sensor, having a resistance element () made of a resistance material, a first connection part () made of a conductor material for introducing an electrical current into the resistance element (), and a second connection part () made of a conductor material for discharging the electrical current from the resistance element (). According to the invention, the component () has a temperature-measuring device () for measuring a temperature difference between the resistance element (), on the one hand, and at least one of the two connection parts (), on the other hand, in order to derive the current from the temperature difference.

Electronic component, in particular current sensor

The invention relates to a resistor, in particular a low-resistance current-measuring resistor, comprising a first connection part () that consists of a conductor material for introducing an electrical current (I), a second connection part () that consists of a conductor material for discharging said electrical current (I), and a resistor element () that consists of a resistor material and is arranged between the two connection parts () in the direction of the current, also comprising a resistor coating () that consists of a metallic material for the purpose of achieving protection from corrosion, and/or improving solderability. According to the invention, the metallic coating () is applied directly to the entire free surface of the resistor element () without any insulation layer.

Resistor, particularly a low-resistance current-measuring resistor

The invention relates to a current-sensing resistor () for measuring an electric current, in particular also for measuring a battery current in a vehicle power supply, having a plate-shaped first connecting part () for introducing the electrical current to be measured, wherein the plate-shaped first connecting part () consists of an electrically conductive conductor material; a plate-shaped second connecting part () for conducting away the electrical current to be measured, wherein the plate-shaped second connecting part () consists of an electrically conductive conductor material; and a plate-shaped resistance element (), which is connected in the current path between the two connecting parts and through which the electrical current to be measured flows, wherein the resistance element () consists of a comparatively high-impedance resistance material. According to the invention an incision () is arranged in the plate-shaped first connecting part () and/or in the plate-shaped second connecting part () in order to reduce the temperature dependency of the measurement and to eliminate the influence of the plate-shaped connecting parts (usually copper or aluminum).

Current-sense resistor

The invention relates to an electronic component (), in particular a low-ohm current-sense resistor, comprising at least one plate-shaped section () and at least one terminal () to electrically contact the plate-shaped section (). According to the invention, the terminals () for measuring the voltage drop created by the current flow are formed by means of stamping and thread-shaping in the plate-shaped sections ().

Electronic component and corresponding production method

The invention relates to a resistor (), particularly an SMD resistor, including a planar, metallic support element () that has a top surface and a bottom surface, a planar resistor element () which is made of a resistive material and is disposed on the bottom surface of the support element (), and at least two separate metallic connecting parts () which electrically contact the resistor element () and are arranged in part on the bottom surface of the support element (). The connecting parts () are laterally exposed on the resistor () and can be laterally wetted in a visible manner by a solder. The invention further relates to a corresponding production method.

Resistor, particularly SMD resistor, and associated production method

The invention relates to a resistor arrangement, especially for current measurement in a vehicle electrical system, with two plate-shaped connection elements separated from each other and a plate-shaped first resistive element, which is arranged between the two connection elements and is electrically and mechanically connected to these elements. According to the invention, at least one of the other plate-shaped resistive elements, which are separated from the first resistive element and which are arranged between one of the two connection elements of the first resistive element and another connection element is connected electrically and mechanically to these connection elements.

Growing community of inventors

Dillenburg-Oberscheld, Germany

Ullrich Hetzler