Patent ID: 8371866

Claim:
A card connector, for connecting an electronic card, said card connector comprising: an insulating body having a substrate, in which a top surface of the substrate is perforated to form a guide groove of which a bottom surface is a cylindrical surface, and one end of the guide groove is communicated with an outer space while the other end is communicated with an accommodating trough; a plurality of conductive terminals fastened to the insulating body; an ejection mechanism comprising a pushing shaft, a plurality of balls, a sliding bulk, and a pressing element, in which the pushing shaft, the plurality of balls, and the sliding bulk are slidably disposed in the guide groove, the plurality of balls are located between the pushing shaft and the sliding bulk and can be rolled sequentially; a tray received in the accommodating trough, one end of the tray corresponding to the sliding bulk; and a metal shell covering the insulating body; wherein the pressing element can push the pushing shaft to make the pushing shaft sliding and thereby pressing the sliding bulk to move the tray, such that the tray is ejected from the accommodating trough of the insulating body.