Patent ID: 7589967

Claim:
A heat dissipation device comprising: a heat sink for contacting a heat-generating component, the heat sink comprising a solid core having an axis substantially perpendicular to the heat-generating component, and a plurality of fins outwardly and radially extending from the core; a plurality of holders connected with fins of the heat sink; a fan comprising a frame and a motor received in the frame, the fan having an intake, the frame having a top level and a bottom level, an airflow generated by the fan and flowing through the heat sink; and an anti-backflow plate mounted between the top level and the bottom level of the fan, the anti-backflow plate extending outwardly and beyond an extremity of the heat sink to prevent the airflow flowing through the heat sink from entering the intake of the fan; wherein each of the holders defines an opening communicating with a channel defined between two of the fins, and a plurality of self-tapping screws extend through the anti-backflow plate, the fan and the openings of the holders in series to threadedly engage with corresponding fins.