| 主权项 |
1. An electric current sensor comprising:
a core having a coupling portion formed by bending a part of a plate member, one end portion and the other end portion of the plate member being disposed to oppose to each other through a constant magnetic gap on a side opposite from the coupling portion, when a current to be measured flows to pass through a hollow portion of the core, the electric current sensor is configured to detect a magnitude of the current based on a magnitude of a magnetic flux generated in the core, wherein the core has a first tapered portion in which a width of the plate member continuously decreases from one end of the coupling portion adjacent to the one end portion to a distal end of the one end portion, and a second tapered portion in which the width of the plate member continuously decreases from an other end of the coupling portion adjacent to the other end portion to a distal end of the other end portion. |
