Patent ID: 11892483
Assignee: ISABELLENHUETTE HEUSLER GMBH & CO. KG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 24:
25. A current measuring resistor for measuring an electric current, comprising:
a) a first connection part comprising a conductor material for introducing the electric current into the current measuring resistor,
b) a second connection part comprising a conductor material for conducting the electric current out of the current measuring resistor, and
c) a resistor element comprising a low-resistance resistance material, the resistor element being arranged in a direction of current flow between the first connection part and the second connection part and being joined to the first and second connection parts so that the electric current to be measured flows through the resistor element during operation and produces a voltage drop across the resistor element,
wherein:
d) the first connection part, the second connection part and the resistor element each have a substantially round cross-section in a sectional plane at right angles to the direction of flow of the electric current,
e) a printed circuit board is attached to an outer surface of the current measuring resistor in order to measure the voltage drop across the resistor element,
f) an essentially round outer contour of the current-measuring resistor has at least one flat flattening in a lateral surface of the current-measuring resistor in order to mount the printed circuit board in a plane-parallel manner on the at least one flat flattening,
g) a plurality of flattenings are distributed over a circumference of the current-measuring resistor in the lateral surface of the current-measuring resistor,
h) the flattenings are located in an outer surface of the resistor element,
i) the flattenings extend in the direction of current flow on both sides into the first and second connection parts, and
j) the printed circuit board is bent several times in accordance with the number of flattenings and has a plurality of flat printed circuit board sections which are each mounted plane-parallel on one of the flattenings.