Patent ID: 7312681
Filing Date: 2007-12-25
Classification: H01F,Y10T

Abstract:
1. An internal combustion engine ignition apparatus comprising: a case in which a connecting end of an external terminal is exposed internally; a transformer that is configured such that a secondary coil that is configured by winding a secondary wire onto a secondary bobbin is disposed concentrically outside a primary coil that is configured by winding a primary wire onto a primary bobbin and a magnetic pole portion of a closed magnetic circuit core is disposed at a central axial position of said primary coil, said transformer being housed inside said case such that said connecting end of said external terminal is positioned radially outside a secondary wire winding region of said secondary bobbin; a transformer terminal that connects a winding finish end portion of said secondary wire to said connecting end of said external terminal; and an insulating resin portion that is injected into and hardened inside said case such that said transformer and said transformer terminal are fixed to said case in an insulated state, wherein: said transformer terminal is configured as a single part that includes: said base portion is mounted to a first flange portion of said secondary bobbin so as to be pivotable around an axis of said base portion such that said second connecting portion can adopt a withdrawn position that is shifted axially away from radially outside said secondary wire winding region of said secondary bobbin and a connecting position that aligns with said connecting end of said external terminal that is radially outside said secondary wire winding region.