Patent ID: 6250941
Filing Date: 2001-06-26
Classification: H01R,H05K

Abstract:
An electrical socket comprising:a base comprising a plurality of passageways extending vertically therethrough for receiving a corresponding number of electrical contacts therein and a flange extending from a corner thereof, the flange comprising a hole therethrough;a cover slidably mounted on the base, the cover comprising a plurality of passages therethrough in alignment with the passageways of the base, respectively, and a flange positioned over the flange of the base, the flange defining an aperture in alignment with the hole of the base and a stop wall formed beside the aperture, the stop wall defining a pair of stop surfaces on opposite sides thereof; andan actuation mechanism comprising a ring insert molded in the aperture of the cover and a cam actuator rotatably retained with respect to the ring and extending into the hole of the base for actuating the cover to slide on the base, the cam actuator forming a lateral protrusion on an upper periphery thereof engageable with one of the pair of stop surfaces of the cover to determine a respective stop position thereof;wherein the ring has a bottom portion to provide a reliable retention to the aperture;wherein the ring comprises a pair of cutouts for preventing a rotational movement of the ring relative to the cover;wherein the stop surfaces of the cover respectively correspond to a contacts-engaged and a contacts-disengaged position of the socket contacts with pins of a PGA chip;wherein the cam actuator comprises a lower disk received in the ring, an upper disk supported by the ring, and a cam block received in the hole of the base;wherein the upper disk of the cam actuator forms an elongated groove in a top surface thereof adapted for being operated by an external tool;wherein the upper disk contains the lateral protrusion;wherein the actuation mechanism comprises a washer, and the cam block comprises a riveting end for riveting the washer to the cam block;wherein the elongated groove is close ended;wherein the ring comprises a stop wall in an upper section thereof, the stop wall defining a pair of stop surfaces on opposite ends thereof flush with the stop surfaces of the cover, respectively.