BOBBIN FOR COIL, WINDING COMPONENT, COIL COMPONENT, SWITCHING POWER SUPPLY UNIT, AND METHOD OF MANUFACTURING COIL COMPONENT

摘要

PROBLEM TO BE SOLVED: To provide an inter-core gap of magnetic core members with high precision through easy assembling operation.

SOLUTION: Bobbins 40 of a winding component 1 are bobbins for coils which electrically insulate a pair of magnetic core members at least one of which has leg parts, from coil windings 2 sandwiched between the pair of magnetic core members with the leg parts being inserted in the coil windings 2, respectively. The bobbins 40 of the winding component 1 include cylindrical parts 40a each provided on an inner peripheral side of the each coil winding 2 along the each center axis direction of the coil winding, spacer parts 61 each provided in the each cylindrical part 40a so as to provide the gap between the paired magnetic core members, and support pieces 63 each coupling an inner wall of the each cylindrical part 40a to the each spacer part 61 and supporting the spacer part 61, wherein the spacer part 61 is pressed by the leg part of the magnetic core member to draw or cut the support piece 63.

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