ELECTRIC CURRENT DETECTOR AND CORE COMPONENT USED THEREFOR

摘要

In an electric current detector according to the present invention, an annular core 2 having a magnetic gap G and a Hall element 41 which is located in the magnetic gap of the core 2 and detects a magnitude of an electric current passing through the core 2 are arranged in an outer case 1. Here, in the core 2, a mold resin portion 3 which covers a surface of the core 2 over part of an overall length along a magnetic path thereof is molded at one or a plurality of portions along the magnetic path to configure an integral core component, the core component being fixed into the outer case 1 in a state where a surface of the mold resin portion 3 makes contact with an inner surface of the outer case 1.

主权项

1. A core component for an electric current detector comprising:
an annular core having a magnetic gap G; and a plurality of mold resin portions provided at one or a plurality of portions along a magnetic path of the core to partly cover an outer peripheral surface of the core, wherein the core is formed by helically winding a band plate in a spiral state, and one mold resin portion covers at least one corner of the core formed along a magnetic path.