Patent ID: 7674135

Claim:
A board-to-board electrical connector comprising: a male connector ( 1 ), including a first insulating base ( 10 ), a plurality of male terminals ( 11 ) integrally molded with said first insulating base( 10 ), each male terminal ( 11 ) having a male contact ( 111 ), and a male stator( 100 ) disposed at each end of said first insulating base ( 10 ); and a female connector ( 2 ), including a second insulating base ( 20 ), a plurality of female terminals ( 21 ) received in said second insulating base ( 20 ), each female terminal ( 21 ) having a female lead ( 210 ) and a female contact ( 211 ) extending from said female lead ( 210 ) in a bending direction for engagement with said male contact ( 111 ), and a female stator ( 200 ) disposed at each end of said second insulating base ( 20 ), which engages with said male stator ( 100 ); characterized in that, each male contact ( 111 ) is shaped in a closed ring with at least a protrusion ( 113 ) extending from an outside surface of said ring, said protrusion restrained in a receiving cavity ( 2112 ) formed between a first convex portion ( 2110 ) of said female contact ( 211 ) and a second convex portion ( 2111 ) set abreast to the first convex portion ( 2110 ), said outside surface of said male contact ( 111 ) contacting with said first convex portion ( 2110 ) and said second convex portion ( 2111 ) respectively, wherein the first convex portion ( 2110 ) and the second convex portion ( 2111 ) each comprise an arm are formed from said female contact ( 211 ) by extending forth and then back, said protrusion ( 113 ) engaging with said first convex portion ( 2110 ) or said second convex portion ( 2111 ) in a locking manner.