Patent ID: 8771028
Filing Date: 2014-07-08
Classification: H01R

Abstract:
1. A connection structure, comprising: a circuit board formed with at least one hole having an inner periphery and a first metal plating layer made of a first metal formed on the inner periphery of the at least one hole; a terminal fitting with a board connecting portion formed with resilient deformation portions that are resiliently deformable in directions intersecting an inserting direction of the terminal fitting into the hole and resiliently held in contact with the inner periphery of the hole when the board connecting portion is inserted in the hole; a second metal plating layer made of a second metal being formed in an area of the outer surface of each resilient deformation portion to be resiliently held in contact with the inner periphery of the hole and alloyed with the first metal plating layer for holding the board connecting portion in the hole; and at least one third metal plating layer made of the first metal and formed in at least one area of the outer surface of each resilient deformation portion to be resiliently held in contact with the inner periphery of the hole and being substantially adjacent to the second metal plating layer, the third metal plating layer contacting the first metal plating layer and forming a conductive area having higher conductivity than an alloyed area formed by resilient contact of the first metal plating layer and the second metal plating layer.