Patent ID: 7746645
Filing Date: 2010-06-29
Classification: H01L,Y10T

Abstract:
1. A heat sink assembly adapted for dissipating heat generated by an electronic component mounted on a printed circuit board, the heat sink assembly comprising: a heat sink comprising a base and a plurality of fins extending from a top surface of the base; and a clip assembly adapted for resiliently clamping the heat sink on the electronic component, the clip assembly comprising: a clip comprising a pair of pressing portions abutting against the top surface of the base, and two locking arms extending upwardly from two ends of the pressing portions and located adjacent to two opposite sides of the heat sink, the locking arms being perpendicular to the pressing portions; and two movable fasteners pivotally connected to the locking arms of the clip, respectively, the movable fasteners each comprising a main body, a receiving portion curved upwardly from a free end of the main body and defining a receiving hole therein, and a hook extending downwardly from the free end of the main body, adapted for engaging with the printed circuit board to resiliently clamp the heat sink on the electronic component, the locking arms being pivotally received in the receiving holes of the receiving portions of the two movable fasteners, respectively; wherein the hooks of the movable fasteners can be rotated around the locking arms of the clip so that a distance from the hooks to clasps formed on the printed circuit board is adjustable via rotation of the movable fasteners around the locking arms of the clip to thereby facilitate the hooks to engage with the clasps of the printed circuit board.