Patent ID: 9449745
Filing Date: 2016-09-20
CPC Classification: H01F

Claim Text:
1. A reactor comprising: a sleeve-like coil; a magnetic core that is disposed inside and outside the coil to form a closed magnetic path; a resin mold portion formed by an insulating resin, the resin mold portion covering at least part of an outer circumference of the coil to retain a shape of the coil; and a case that stores the coil and the magnetic core and the resin mold portion, wherein at least part of the magnetic core is formed by a composite material that contains magnetic substance powder and resin, the case includes: a bottom plate portion that is formed by a non-magnetic metal material, an assembled product made up of the coil and the magnetic core being disposed on the bottom plate portion; and a wall portion that is an independent member from the bottom plate portion, the wall portion being attached to the bottom plate portion to surround the assembled product, the resin mold portion integrally retains the coil and the bottom plate portion, and the magnetic core includes: an inner core portion that is disposed inside the coil so that at least one of both axial end faces of the inner core portion is not covered by the resin mold portion and exposed outside; and an outer core portion that is in a shape conforming to a space formed by an inner circumferential face of the case and an outer circumferential face of the resin mold portion, the outer core portion has a part that is coupled to at least one of both axial end faces of the inner core portion.