| 摘要 |
<p>PURPOSE: To provide a current detector which can be miniaturized and is resistive to external electromagnetic noise. CONSTITUTION: This current detector contains a core 1 made of a ferromagnetic material on which a coil electric wire 2 is wound and a circuit board 5 on which a magnetic sensitive element such as Hall element and circuit parts are mounted, and the core 1 has a magnetic gap 1a in the part of a circumferential magnetic circuit and it has a base body case 3 for holding the circuit board 5 and a bobbin part 9 in which a part of the core 1 with the coil electric wire 2 wound on is insulated by an insulating resin, and the base body case 3 covers the core 1 with the insulating resin, and the base body case 3 and the bobbin part 9 are integratedly formed in the core 1.</p> |
