Electrical connector

An electrical connector includes a connection main part surrounded by the seat frame, and a CPU carrier for carrying the CPU and a load plate for downwardly pressing the CPU respectively pivotally located at two opposite ends of the seat frame in the front-to-back direction. A set of rotation mechanism is rotatably assembled upon one end to receive the CPU carrier. A pair of supporting arms are unitarily formed with one end of the seat frame, forming a pair of locking recesses having one open side. The seat frame includes a stopper opposite to the pair of locking recesses in the lengthwise direction. The rotation mechanism is pre-assembled as one piece and successively assembled upon the seat frame along the lengthwise direction with the pivot engaged within the pair of locking recesses and a middle section of the torsion spring engaged with the stopper.