HEAT DISSIPATION DEVICE

摘要

A heat dissipation device includes a fan (10) and a fin assembly (20). The fan has an air inlet and an air outlet mating with the air inlet. The fan is mounted on the fin assembly. The fin assembly has a plurality of fins (221) arranged one by one and a plurality of channels (222) formed between adjacent fins. Each fin has a main body (2210), a first flange (2211a) and a second flange (2213a). The first flange and the second flange are slantwise extended from an edge portion of the main body towards the air outlet of the fan. The first flange and the second flange are inclined with respect to the main body, and an airflow produced by the fan is guided into the channels of the fins by the first flange and the second flange of the each fin.