Patent ID: 8465325

Claim:
A card connector adapted for receiving a SIM card and a micro SIM card therein, comprising: an insulating housing having a base board, two side walls and a blocking wall protruding upward from two opposite side edges and a rear edge of the base board respectively, a receiving space being surrounded among the base board, the side walls and the blocking wall, a substantial middle of a top side of the base board being further concaved downward to form a receiving chamber, the base board defining a plurality of terminal fillisters arranged in front of the receiving chamber and communicating with the receiving space; a plurality of electrical terminals disposed in the base board, each electrical terminal having a contact portion which projects into the receiving space through the corresponding terminal fillister; a fool-proofing device including a fool-proofing board and at least two lifting members disposed in two opposite sides of a bottom wall of the receiving chamber, each lifting member having at least one elastic portion projecting upward in the receiving chamber, the fool-proofing board having a shape in accordance with the receiving chamber and defining an inserting mouth in a substantial middle of a front thereof, top edges of other two parts of a front end of the fool-proofing board being cut off to form a pair of slopes, the fool-proofing board being movably located over the receiving chamber by virtue of the elastic portions elastically propping against a bottom thereof; an ejection device assembled in one side wall and further projecting into the receiving space for ejecting the cards out of the card connector; and a shielding shell covered on the insulating housing to restrain the fool-proofing board between the shielding shell and the elastic portions of the lifting members, wherein the SIM card is inserted rearward in the receiving space to electrically contact with the contact portions of the electrical terminals by virtue of pressing the fool-proofing board downward into the receiving chamber under the guiding of the slopes, a rear of the micro SIM card is inserted rearward into the inserting mouth and further pushes the fool-proofing board to slide rearward in the receiving space so as to realize an electrical connection between the micro SIM card and the contact portions of the electrical terminals, the fool-proofing board can move back over the receiving chamber under the ejection action of the ejection device to further eject the micro SIM card out of the card connector.