Patent ID: 7969728

Claim:
A heat dissipation device comprising: a heat sink comprising a plurality of fins defining a plurality of passageways therebetween, the passageways having an inlet and an outlet; a fan located at the inlet of the passageways of the heat sink for providing airflow to the heat sink; two adjusting members mounted at two opposite sides of the heat sink; and a guiding member positioned at the outlet of the passageways of the heat sink for guiding the airflow to electronic components around the heat dissipation device; wherein the guiding member engages the adjusting members and can move vertically relative to the adjusting members, thereby adjusting a height of the guiding member along a height of the heat sink; wherein the guiding member has two fixing arms respectively engaging with the two adjusting members and a tongue embedded into the heat sink, thereby attaching the guiding member to the heat sink; and wherein each of the adjusting members defines a vertical recess therein, and each of the fixing arms has a movable portion extending therefrom and slideable in the vertical recess of one corresponding adjusting member.