MANUFACTURING METHOD OF COIL

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a coil with satisfactory heat dissipation performance capable of preventing temperature rise on the coil.SOLUTION: A coil 20 is manufactured in a manner that plural annular conductors C1-C6 each having an opening 10 are piled up so that each of the openings of the neighboring annular conductors comes to a position different from each other, and subsequently a resin is injected into the annular conductors including the opening.