Patent ID: 8303317

Claim:
A connector assembly, comprising: a socket connector adapted for being soldered on a first printed circuit board, the socket connector including: a socket housing defining an insertion space at a lower portion thereof, at least two embedding grooves being defined in two opposite inner sidewalls of the insertion space and communicating with the insertion space, a top of the embedding groove penetrating upward through a top of the socket housing and a bottom of the embedding groove being deeply curved into the corresponding inner sidewall of the insertion space, the top of the socket housing defining at least two first terminal grooves connected with the tops of the embedding grooves respectively, two bottom edges of the two opposite inner sidewalls of the insertion space being designed with two arc-shaped guiding surfaces; at least two socket terminals received in the first terminal grooves of the socket housing with first soldering portions thereof projecting beyond a front of the socket housing to be soldered on the first printed circuit board; and at least two contact pads inserted in the embedding grooves of the socket housing and face-to-face exposed in the insertion space, with a top end of each contact pad being fastened in the top of the corresponding embedding groove to electrically contact with the socket terminal, and a bottom end of each contact pad being bent to be embedded in the bottom of the embedding groove so as to realize a smooth connection of the contact pad and the guiding surface; and a plug connector adapted to be engaged with the socket connector and soldered on a second printed circuit board, the plug connector including: a plug housing including a base board, a top of the base board protruding upward to form an insertion head defining at least two second terminal grooves vertically penetrating through the base board, and further oppositely passing through two opposite outsides of the insertion head; and at least two plug terminals received in the second terminal grooves, each of the plug terminals having a second contact portion arched outward to elastically project sideward out of the second terminal groove and a second soldering portion projected under the base board to be soldered on the second printed circuit board, the second contact portion together with the insertion head being inserted into the insertion space of the socket housing along the guiding surfaces to electrically contact with the contact pads.