Patent ID: 7938658
Filing Date: 2011-05-10
Classification: H01R

Abstract:
1. A card edge connector for an electronic card to be inserted therein, wherein the electronic card is provided with a snap-fitting portion on at least one side thereof and the snap-fitting portion is formed with a fastened surface, the card edge connector being characterized in that it comprises: an electrical receptacle, being formed with a slot for the electronic card to be inserted therein, wherein the electrical receptacle is provided with a tower portion extending upward on at least one side thereof, and the tower portion is formed with an abutting surface facing downward; at least one fastener, being provided with at least one pivot portion for movably pivoted to the electrical receptacle, wherein the fastener is further provided with a detent portion which is formed with a snap-fitting surface, the detent portion pivots about the pivot portion to be snap-fitted with the snap-fitting portion, the snap-fitting surface is exactly located above the fastened surface and makes contact with the fastened surface to form a fastening area, the fastening area has a contact point that is closest to a central perpendicular line of the electrical receptacle and the contact point has a first shortest distance from the central perpendicular line; and wherein the fastener is provided with an abutting portion between the pivot portion and the detent portion, the abutting portion is located exactly beneath the abutting surface when the detent portion is snap-fitted to the snap-fitting portion, a top surface of the abutting portion abuts against the abutting surface to form an abutting area, the abutting area has an abutting point that is closest to the central perpendicular line, and the abutting point has a second shortest distance from the central perpendicular line which is less than the first shortest distance; whereby, before the fastener is operated to be detached from the snap-fitting portion, in case the electronic card is subjected to a force opposite to a direction in which the electronic card is inserted, the fastened surface of the electronic card will push against the snap-fitting surface to drive the abutting point of the abutting portion to abut against the abutting surface correspondingly, and with the abutting point as a fulcrum, a torque is generated from the abutting force to rotate the detent portion of the fastener towards the central perpendicular line, thereby improving the snap-fitting capability.