Patent ID: 7606037

Claim:
A fastener for a heat-dissipating device, said fastener being adapted to secure a heat sink on a securing seat, the securing seat including two positioning members disposed respectively on two opposite sides of the securing seat, and two openings disposed respectively in two opposite sides of one of the two positioning members, said fastener comprising: a fastening arm having a coupling member and a plate body disposed respectively at two opposite ends thereof, said coupling member being adapted to couple with one of the positioning members; a fastening member disposed spacedly below said plate body of said fastening arm and opposite to said coupling member, said fastening member being adapted to couple with the other of the positioning members; and two linkage sets, each of which is connected to and is disposed between said plate body and said fastening member, said two linkage sets being disposed respectively on two opposite sides of said plate body and of said fastening member, each of said linkage sets including a first resilient connecting element connected to said plate body, and a second resilient connecting element connected to said fastening member, said two linkage sets being pivotable toward each other in a direction of said fastening member within a determined angle, with said first and second resilient connecting elements serving as axes, and being capable of bringing said plate body to displace downward toward said fastening member such that said two linkage sets are adapted to engage the two openings, respectively.