Current Sensor

Abstract: a current sensor includes a busbar through which a measured current flows, a magnetic detector that detect a magnetic field generated by the measured current, a casing that holds the busbar, a first magnetic shield that reduces disturbance magnetic field noise applied to the magnetic detector, a substrate having the magnetic detector on its surface on one side in a first direction perpendicular to second and third directions perpendicular to each other, where the busbar, magnetic detector, substrate, and first magnetic shield are disposed in this order from the one side in the first direction, and a spacer portion provided between the casing and substrate to separate the busbar from the magnetic detector in the first direction. the substrate has a protruding portion protruding from a position where the substrate is held by the spacer portion in at least one of protruding directions that are the second and third direction.

Inventor(s): Manabu TAMURA

CPC Classification: G01R19/0092 (Arrangements for measuring currents or voltages or for indicating presence or sign thereof ( takes precedence; for measuring bioelectric currents or voltages ))

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