Patent ID: 6587341
Filing Date: 2003-07-01
Classification: H01L

Abstract:
An improved heat dissipater structure comprising:a heat sink base comprising a flat base plate; a periphery of the base plate forming a plurality of fins extending upward, each fin is a flat vertical plate angled corresponding to a rotational direction of a fan as to provide airflow channels with adjacent fins; the flat base plate and the fins define a receiving cavity, the fan is disposed inside of the receiving cavity; a pair of hook-like blocks extending upward on opposite sides of the periphery of the flat base plate; a cover body having a central opening for air inlet, the cover body disposed on top of the base plate and the fan; a pair of upper retaining hooks extending downward in correspondence with the pair of the hook-like blocks and engaging with the hook-like blocks to retain the base plate, the fan and the cover body together; and a pair of stop blocks located on opposite sides of the cover body, extending downward from the cover body and pressed against the base plate.