Patent ID: 7580263

Claim:
A heat dissipation device comprising: a heat sink assembly comprising a heat spreader adapted for contacting with a heat-generating electronic component, and a fin assembly thermally connecting with the heat spreader, the fin assembly defining a plurality of channels therein, the heat sink assembly further comprising a mounting plate mounted on the fin assembly and parallel to the heat spreader; a fan holder having a U-shaped configuration and comprising a top plate mounted on a top of the fin assembly and a pair of vertical baffle walls extending downwardly from two opposite ends of the top plate, a length of each of the baffle walls being corresponding to a length of the fin assembly, the baffle walls of the fan holder being located at two lateral ends of the fin assembly and sandwiching the fin assembly therebetween; and two fans being mounted on two sides of the fan holder and respectively abutting against inlets and outlets of the channels of the fin assembly, an airflow generated by one fan flowing through the fin assembly and being sucked by the other fan; wherein the top plate of the fan holder is mounted on the mounting plate, the top plate defines two through holes, two knurled screws extending through the through holes of the top plate and engaging in the mounting plate.