MOLDED COIL AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To integrate a bobbin with a molding in a molded electromagnetic coil. SOLUTION: In a molded electromagnetic coil, a PS resin is used as a molding material 4. With a bobbin 2 also formed of the same material as the molding material, an acute protruded part A and a recessed part B are formed on and in the bobbin 2. When the molding material is injected, the protruded part A is molten and the bobbin 2 is integrally formed with the molding material to constitute a molding, whereby the electromagnetic coil is constituted into a such a structure that the integral formation of the bobbin with the molding material is contrived.