| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composite magnetic core which is cheap and easily connected to another composite magnetic core, by a method wherein the composite magnetic core is a cylindrical magnetic core which is used as an EMI countermeasure for a cable and formed of soft magnetic alloy powder and organic binder. SOLUTION: A composite magnetic core 1 used as an EMI countermeasure is formed of a cylindrical composite magnetic body composed of soft magnetic alloy powder and organic binder. A male screw 2 is provided to the one edge of the core 1 concentrically with the core 1. The male screw 2 is smaller in diameter than the core 1, and a female screw 3 is provided to the other edge of the core 1 concentrically with the core 1. The inner diameter of the female screw 3 is equal to the outer diameter of the male screw 2, so that the male screw 2 can be screwed in the female screw 3. The composite magnetic core 1 is fixed through such a manner that a hole which is provided to a case 4 and through which a cable 6 is led outside is threaded into a female screw 5 into which the male screw 2 can be screwed, the cable 6 is put through the composite magnetic core 1, and then the composite magnetic core 1 (if composite magnetic cores are necessary, composite cores 1 and 1b are prepared) in screwed into the case 4 to be fixed. |
