Resin-mold core and reactor using the same

摘要

A resin-mold core includes right and left leg portions, and a yoke portion interconnecting those. The resin-mold core includes a magnetic core, and a mold component having the magnetic core embedded therein by molding. Openings where the magnetic core in the mold component is exposed are formed in multiple faces of the mold component that are upper, lower, front, rear, and right and left faces. A part of the yoke portion of the resin-mold core corresponding to a location where terminals are drawn to the exterior of the core from coils attached to the outer circumferences of the leg portions of the core has no opening formed in the multiple faces of the mold component. Positioning members to coaxially align the leg portions of the opposing resin-mold core are formed in abutting faces of the leg portions of the resin-mold core.

主权项

1. A resin-mold core comprising:
a magnetic core having a plurality of leg portions and a yoke portion which connects the leg portions; a resin-mold component inside of which the magnetic core is embedded by mold-forming and having a plurality of leg portions and a yoke portion which connects the leg portions of the resin-mold component; openings exposing the magnetic core inside of the resin-mold component, the openings being formed on plural surfaces of the resin-mold component except a portion of the yoke portion of the resin-mold component through which a terminal connected to a coil to be mounted around the leg portions of the resin-mold component is drawn to an exterior; and a fastener fastening the terminal to a surface of the yoke portion, wherein the fastener has two linear protrusions having tips bent like a hook to be parallel to the yoke portion and formed in parallel with each other along an axial direction of the leg portions with a clearance matching a width of the terminal to be maintained therebetween so that the bent tips face with each other.