Patent ID: 6371783
Filing Date: 2002-04-16
Classification: H05K

Abstract:
A socket for an electrical part, the socket comprising:a socket body having a mount portion on which an electrical part is mounted, said electrical part having terminals; a plurality of contact pins arranged to the socket body and adapted to be contacted to or separated from the terminals of the electrical part, respectively; a movable plate disposed to the socket body so as to be movable with respect to the socket body, each of said contact pins having a moveable elastic piece and an opposing stationary elastic piece, the moveable elastic piece being formed at a front end portion thereof with a contact portion, said contact portion being displaced relative to the stationary elastic piece in accordance with the movement of the movable plate so as to contact the terminal of the electrical part thereby being electrically connected thereto; and means, fixed relative to the socket body, for continuously applying a constant preload to each middle portion of each contact pins' elastic piece, said means arranged to the socket body so as to elastically deform the middle portion of the elastic piece in a direction for closing, relative to the opposing stationary portion, the contact portion of the contact pins to contact the terminal of the electrical part, wherein at the time the electrical part is mounted on the socket said elastic pieces are deformed elastically against said preload by displacement of the movable plate so as to elastically displace the contact portion of the contact pin from an original position thereof.