| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thin electromagnetic inductor which can be mounted on a wiring board with a small mounting area. SOLUTION: This electromagnetic inductor is constituted in such a way that windings 11 and 12 are wound around a flat bobbin 1 having an axial dimension D1 smaller than its diametral dimension D2 and the middle leg sections 24 and 24 of a pair of F-shaped core pieces 23 and 23 are inserted into the center holes 20 and 22 of the bobbin 1. At the same time, the outer leg sections 27 and 27 of the core pieces 23 are positioned outside the windings 11 and 12 in the diametral directions of the windings 11 and 12 on the outside of the bobbin 1 and the arm sections 31 and 31 of the pieces 23 are extended in the diametral directions of the windings 11 and 11 and parallelly faced to each other.</p> |
