Current sensing device
AssigneeABB Schweiz AG
InventorsAdrian Hozoi, Jaromir Podzemny
Life of this patent
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Abstract
A current sensing device includes a substrate and one or more coil elements. The substrate comprises a plurality of holes extending at least partially through the substrate from a first surface of the substrate. The coil element comprises two locating pins. A first locating pin engages a locating cavity of a first flange and locates in a first hole. A second locating pin engages another locating cavity of a second flange and locates in a second hole. The end of the first locating pin bends to form an obtuse angle. The end of the second locating pin also bends to form an obtuse angle.
Claims13
A current sensing device, comprising:
- a substrate;
- and
- one or more coil elements;
- wherein the substrate comprises a plurality of holes extending at least partially through the substrate from a first surface of the substrate, wherein prior to a coil element being mounted to the substrate each of the plurality holes has a circular cross section;
- wherein the coil element comprises a winding body, two flanges disposed at either end of the winding body, a length of wire, and two locating pins;
- wherein the winding body has an outer surface around an axis of the winding body, and wherein at least a portion of the length of wire is wound multiple times around the outer surface of the winding body in a generally circumferential direction with respect to the axis of the winding body;
- wherein, when the coil element is mounted to the first surface of the substrate:
- a first locating pin of the two locating pins is engaged in at least one locating cavity of a first flange of the two flanges and an end portion of the first locating pin of the two locating pins is located in a first hole of the plurality of holes, and a second locating pin of the two locating pins is engaged in at least one locating cavity of a second flange of the two flanges and an end portion of the second locating pin is located in a second hole of the plurality of holes;
- and
- a first section of the first locating pin including the end portion located in the first hole is bent with respect to a second section of the first locating pin such that there is an obtuse angle between the first section and second section of the first locating pin;
- and
- a first section of the second locating pin including the end portion located in the second hole is bent with respect to a second section of the second locating pin such that there is an obtuse angle between the first section and second section of the second locating pin,
- wherein the two locking pins comprise at least one locking anchor configured to stop the two flanges from moving perpendicularly away from the first surface of the substrate, and
- wherein the locking anchor is formed from a bridge part connecting the first locating pin to the second locating pin, and wherein when the coil element is mounted to the first surface of the substrate and the end portions of the locating pins are located in their respective holes of the substrate a portion of the bridge part is located adjacent to a surface of the first flange facing away from the first surface of the substrate and a portion of the bridge part is located adjacent to a surface of the second flange facing away from the first surface of the substrate.
Dependencies are inferred from the claim text.