Patent ID: 8047271

Claim:
A heat dissipation device adapted for dissipating heat from a heat-generating electronic element, the heat dissipation device comprising: a heat sink comprising a base and a plurality of fins extending upwardly from the base, an engaging groove being defined in top ends of the fins; a fan holder comprising a top panel, two sidewalls extending downwardly from two lateral edges of the top panel, and a bottom board connecting to front portions of the lower ends of the sidewalls, the top panel having an inserting protrusion extending downwardly from a bottom surface thereof, the two sidewalls being perpendicular to the top panel and having two latching legs at lower ends thereof, the bottom board being parallel to the top panel and having an air-guiding plate extending downwardly from a front side thereof, and the air-guiding plate defining a plurality of through holes that are located beneath the base of the heat sink; and a fan secured at a front side of the fan holder; wherein the top panel is partially placed on a front portion of the top ends of the fins and the inserting protrusion is inserted into the engaging groove of the fins, the two sidewalls abut against front portions of two lateral sides of the heat sink, and the two latching legs fasten to two lateral sides of the base of the heat sink.