Patent ID: 7114975

Claim:
A card edge connector on a circuit board of an electronic device for the insertion of one edge of a daughter board, wherein the edge has at least a crack and a plurality of contacts, said card edge connector comprising: a connection part disposed on a side surface at the card edge connector in the longitudinal direction, containing a plurality of terminals in parallel, and formed with a long opening for the insertion of the daughter board to enable the contacts of the daughter board to be in electrical connections with the terminals; and a position guider disposed inside the connection part to prevent the daughter board from inserting incorrectly into the card edge connector and containing a guiding structure, wherein the guiding structure includes two slant surfaces extending in opposite directions from the left and right sides of the position guider, a largest width of the position guider is slightly larger than an allowed upper limit of the width of the daughter board crack so that the two slant surfaces are simultaneously in contact with inner walls of the daughter board crack to guide the daughter board to a desired position.