Patent ID: 8643460
Filing Date: 2014-02-04
Classification: H01F

Abstract:
1. A transformer structure, comprising: a bobbin comprising a main body and a channel, wherein said main body has a first winding section and plural first pins, said plural first pins are located at bilateral sides of said main body, and said channel runs through said main body; a conductive base disposed on a bottom side of said bobbin, and comprising at least one connecting part, wherein through said connecting part of said conductive base, at least a portion of said plural first pins are electrically connected with each other; a first winding coil wound around said first winding section; plural second winding coils connected with corresponding first pins; a magnetic core assembly partially embedded into said channel of said bobbin; and said connecting part of said conductive base comprises plural third pins and at least one trace, wherein said trace is buried within said conductive base and connected with two of said plural third pins, wherein said two of said plural third pins are extended from bilateral sides of said conductive base and electrically connected with two of said plural first pins at said bilateral sides of said main body of said bobbin, so that said two of said plural first pins at said bilateral sides of said main body of said bobbin are electrically connected with each other through said trace.