Heat sink clip with pressing cam

摘要

A heat sink clip ( 1 ) includes a main body ( 50 ), an operating part ( 30 ) movably received in the main body, and a pressing cam ( 70 ) pivotably attached to the main body. The main body includes a central portion ( 52 ), and two hooks ( 54 ) depending from opposite ends of the central portion. The operating part includes a driving portion ( 34 ) and a handle ( 32 ). A plurality of first teeth ( 346 ) is formed in the driving portion. The pressing cam includes a plurality of second teeth ( 74 ) that mesh with the first teeth. When the handle is slid, the first teeth drive the second teeth to rotate. The pressing cam accordingly rotates until it is forced against a top surface ( 3 a) of a heat sink ( 3 ). The main body is thus resiliently displaced upwardly, causing the hooks to be firmly engaged with a socket ( 5 ) on which the CPU is mounted.