US Patent 7497716 Electrical connector

An electrical connector (1) comprises a housing (1) fixed on a PCB, a metal cover (40) pivotally mounted to the housing (10), and a lever (50) attached to the housing (10). The housing (10) defines a plurality of passageways receiving a plurality of terminals (20) therein. The cover (40) defines a first side (401) with a tongue portion (4010), a second side (402) opposite to the first side (401) and a third side (403) and a fourth side (404) opposite to the third side (401) connecting the first side (401) and the second side (402). The third and the fourth side (401, 402) define as an arched configuration and project toward the housing, and the first and the second sides (403, 404) define at least one projection (405) respectively.