Electrical connector having retention system for precisely mounting plural boards therein

摘要

An electrical connector (1) comprises a dielectric housing consisting of a first housing (10, 52) and a second housing (40, 51), a spacer (20) assembled at a bottom of the housing and a plurality of circuit boards (30). The housing defines a plurality of parallel channels (15) extending in a mating direction of the electrical connector. A plurality of bumps (106) extends downward from an upper wall of the housing in alignment with the channels for abutting against with an upper face of a corresponding circuit board. The spacer consists of a plurality of identical wafers (21) thereby each two adjacent wafers defining a slot (200) to receive a corresponding circuit board therein. Each wafer has a dielectric base (22), a plurality of terminals (23) attached on a first side of the dielectric base to electrically connect with a corresponding circuit board, and a grounding bus (24) mainly attached on an opposite second side of the dielectric base.