Resistor, in particular low-resistance current measuring resistor
First Claim
1. A resistor comprisinga) a first connection part comprising a conductive material for conducting an electric current into the resistor,b) a second connection part comprising a conductive material for conducting the electric current out of the resistor, wherein the first connection part and the second connection part are collectively referred to hereinafter as connection parts,c) a resistor element comprising a resistive material, the resistor element being arranged in a direction of current flow between the first connection part and the second connection part so that the electric current flows through the resistor element, andd) several voltage taps which electrically contact the connection parts and measure a voltage drop across the resistor element,e) wherein the connection parts have a really extensive current contact surfaces to conduct the current in and out, andf) at least one part of the resistor is essentially U-shaped in cross-section, andg) the voltage taps are attached on an inner side of the connection parts, andh) the current contact surfaces are attached on an outer side of the connection parts, andi) the connection parts enclose an inner space, andj) at least one part of a measurement device is arranged in the inner space, the measurement device being installed to measure the voltage drop across the resistor element.
1 Assignment
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Accused Products
Abstract
The invention relates to a U-shaped resistor (1), in particular a low-resistance current-measuring resistor (1), comprising a first connection part (2) made of a conductive material having a first current contact surface for conducting an electrical current (I) into the resistor (1), and comprising a second connection part (3) made of a conductive material having a second current contact surface for conducting the current (I) out of the resistor (1), as well as comprising a resistor element (4) made of a resistor material, wherein the resistor element (4) is arranged in the direction of current flow between the first connection part (2) and the second connection part (3), such that the electrical current (I) flows through the electrical resistor (1). The current (I) perpendicularly enters or leaves the connections parts (2, 3) via their outer surfaces. In addition, the voltage taps are attached to the inner side of the U-shaped resistor (1), and contact the connection parts (2, 3) close to the transition to the resistor element (4).
15 Citations
24 Claims
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1. A resistor comprising
a) a first connection part comprising a conductive material for conducting an electric current into the resistor, b) a second connection part comprising a conductive material for conducting the electric current out of the resistor, wherein the first connection part and the second connection part are collectively referred to hereinafter as connection parts, c) a resistor element comprising a resistive material, the resistor element being arranged in a direction of current flow between the first connection part and the second connection part so that the electric current flows through the resistor element, and d) several voltage taps which electrically contact the connection parts and measure a voltage drop across the resistor element, e) wherein the connection parts have a really extensive current contact surfaces to conduct the current in and out, and f) at least one part of the resistor is essentially U-shaped in cross-section, and g) the voltage taps are attached on an inner side of the connection parts, and h) the current contact surfaces are attached on an outer side of the connection parts, and i) the connection parts enclose an inner space, and j) at least one part of a measurement device is arranged in the inner space, the measurement device being installed to measure the voltage drop across the resistor element.
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13. A resistor comprising:
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a) a first connection part comprising a conductive material for conducting an electric current into the resistor, b) a second connection part comprising a conductive material for conducting the electric current out of the resistor, wherein the first connection part and the second connection part are collectively referred to hereinafter as connection parts, c) a resistor element comprising a resistive material, the resistor element being arranged in a direction of current flow between the first connection part and the second connection part so that the electric current flows through the resistor element, and d) several voltage taps which electrically contact the connection parts and measure a voltage drop across the resistor element, e) wherein the connection parts have a really extensive current contact surfaces to conduct the current in and out, and f) at least one part of the resistor is essentially U-shaped in cross-section, and g) the voltage taps are attached on an inner side of the connection parts, and h) the current contact surfaces are attached on an outer side of the connection parts, and i) the resistor element has a cross-sectional shape in a cross-section at right angles to the direction of current flow, said shape deviating from a pure rectangular shape, and j) the resistor element is multiply bent or angled perpendicularly to the direction of current flow so that it surrounds an inner space and at least partially encloses it, and k) the resistor element has at least one limb, which extends in the direction of current flow and projects internally into the inner space, and l) at least one voltage tap is attached to each of the connection parts in a proximity of one of the limbs.
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Specification