| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inductance element enabling the simplification and automation of a process for forming a shielded coil of wire and having shielding effect. SOLUTION: In an inductance element in which a coil is wound around a bobbin 3 having more than two spools divided by collars and a ferrite core 1 is placed, the bobbin 3 has a central hole into which the central leg of the core is inserted and the spools provided with outer holes 12 into which the outer legs of the core are inserted to the bobbin bottom, and a shielded coil 4 is constituted at the spools via the upper collar of the bobbin. As a result of this constitution the inductance element having shielding effect too via a sequence of winding process is realized.</p> |
