Patent ID: 9183981
Filing Date: 2015-11-10
Classification: H01F,Y10T

Abstract:
1. A reactor comprising: a reactor core in which two U-shaped core members are connected in a ring shape with a gap section therebetween; a primary insert-molded resin part which is fixed to cover at least an outer peripheral surface of a leg part of the core member other than an adhesion surface of the core member; a coil which is placed around the gap section and the leg part of the core member; and a secondary insert-molded resin part which is made of a thermoplastic resin and which is insert-molded around the coil to fix the coil on the reactor core and fix the leg parts of the two core members in a connected state, wherein a positioning section which determines a relative position of opposed leg parts and a window section which allows a melted thermoplastic resin for forming the secondary insert-molded resin part to flow into the gap section are formed on ends of the primary insert-molded resin part connected to each other in a state in which the core members are placed connected in a ring shape, wherein the reactor is taken out from a molding tool after the secondary insert-molded resin part is formed in the molding tool, and wherein the secondary insert-molded resin part is formed covering almost the periphery of the coil and covering only a portion of the primary insert-molded resin part fixed on the reactor core.