Electrical current sensor with magnetic field detector
First Claim
1. Current sensor comprising a magnetic circuit with an air-gap, a winding arranged on this magnetic circuit in which flows the electric current to be measured, a magnetic field detector arranged in said air-gap, and a support plate bearing an electric circuit arranged for amplifying an output signal of said magnetic field detector, characterized in that said support plate comprises a main portion and a lateral extension of the same, such that the plate has a cutaway area defined by adjacent sides of, respectively, said main portion and said extension, the magnetic field detector being mounted on the support plate and the magnetic circuit being fixed to this plate in such a way that the magnetic field detector is placed in the air-gap of the magnetic circuit and the winding is placed, at least partially, in said cut-away area.
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Accused Products
Abstract
The invention concerns an electrical current sensor comprising a magnetic circuit (3), with an air gap (3a), a winding (4) on the magnetic circuit in which a current to be measured flows, a magnetic field detector (5) arranged in the air gap, and a support plate (2) carrying an electrical circuit (6) configured to amplify an output signal from the magnetic field detector. The support plate (2) comprises a main part (21) and a lateral extension (23), the entire unit having an area cut away from the overall rectangular shape of the plate. The turns (4a) of the winding (4) are arranged at that area in such a way that the thickness of the sensor depends on the transverse dimensions of the winding.
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Citations
11 Claims
- 1. Current sensor comprising a magnetic circuit with an air-gap, a winding arranged on this magnetic circuit in which flows the electric current to be measured, a magnetic field detector arranged in said air-gap, and a support plate bearing an electric circuit arranged for amplifying an output signal of said magnetic field detector, characterized in that said support plate comprises a main portion and a lateral extension of the same, such that the plate has a cutaway area defined by adjacent sides of, respectively, said main portion and said extension, the magnetic field detector being mounted on the support plate and the magnetic circuit being fixed to this plate in such a way that the magnetic field detector is placed in the air-gap of the magnetic circuit and the winding is placed, at least partially, in said cut-away area.
Specification