| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a coil device which is high in sealing properties. SOLUTION: A coil device is equipped with a coil 10 which is composed of a bobbin 11 and a winding 16 wound on the bobbin 11, and a casing 20 is formed around the coil 10 through molding. Releasing holes 25 for the round pins of a die for holding the coil 10 when the casing 20 is formed by molding are each provided to the upper and lower part of the casing 20. A seam 26 formed between the bobbin 11 and the casing 20 is arranged on each of the releasing holes 25, and a rubber stopper 40 is mounted there, so that the seam 26 is kept high in sealing properties. A holding plate 42 is fixed to the outer side of the rubber stopper 40 by welding, by which the rubber stopper 40 is prevented from falling off.</p> |
