Patent ID: 8598973
Filing Date: 2013-12-03
Classification: H01F

Abstract:
1. A reactor, comprising: a magnetic core that includes a plurality of core pieces that are combined so as to form an annular shape; a coil molded product that includes a coil that is formed of a helically wound wire and an internal resin portion that covers an outer periphery of the coil so as to maintain a shape of the coil; and an external resin portion that covers an outer periphery of an assembly of the magnetic core and the coil molded product, the coil molded product being disposed around an outer periphery of the magnetic core, wherein: the magnetic core is fixed in the annular shape without use of adhesive, the coil is maintained in a state in which a free length of the coil is compressed by the resin portion, the coil includes a pair of coil elements formed of a helically wound single continuous wire, and the coil elements are formed so as to have a side-by-side structure in which the axis directions of the coil elements extend parallel to each other.