Electrical connector assembly

Abstract

A board-to-board electrical connector assembly consists of a plug connector connected to a daughter board and a receptacle connector connected to a mother board. The receptacle connector has a first housing with a top face connected to the mother board and a bottom face connected to the plug connector, a pair of metal shields mounted to a front and rear face of the first housing, respectively, and a number of contacts fixedly received in contact passageways of the first housing. Each metal shield is integrally formed with two lateral sections each including an upper solder pad soldered to a grounding circuit of the mother board, and a leg covering a corresponding lateral wall of the first housing and defining an engaging foot, and a body portion between the two lateral sections. The body portion is formed with a bent line between and parallel to an upper and lower edge of the body portion. The plug connector has a second housing, a number of contacts fixedly received in contact passageways of the second housing and two second solder pads fixed to lateral ends of the second housing. The second solder pads are soldered to a grounding circuit of the daughter board and connect with the engaging feet of the shields. The bent line causes the lower edge of the shield to extend toward the second housing so that beads formed on the lower edge can positively engage with grounding contacts of the contacts of the plug connector.