| 摘要 |
PROBLEM TO BE SOLVED: To provide a reactor miniaturized by arranging a terminal board above a yoke part of an annular core.SOLUTION: The reactor comprises an annular core 1, coils 51a, 51b wound around an outer periphery of a leg part of the annular core 1, resin moldings 2, 3 in which the annular core 1 is embedded, and a terminal board 71 provided with a terminal for connecting an external wiring to an end of the coil. Bobbins 22a, 22b and coating parts 21, 31 of the core are integrally formed on the resin molding 2. An assembly of the resin moldings 2, 3 in which the annular core 1 is embedded and the coils 51, 51b wound around the bobbins are housed in a metallic case 4. A gap is formed between the assembly and the case 4, and filled with a filler 9. An exposure part at a core bottom is coated with the filler 9. A terminal board 71 is arranged at a top part of the coating part 31, and ribs 36a, 36b for increasing an insulation distance between the terminal board and the case 4 are integrally formed on the coating part 31. A reinforcing plate 37 is integrally formed between the ribs 36a, 36b and the coating part 31. |
