FIN STRUCTURE FOR A HEAT SINK

摘要

A heat sink includes a base adapted for absorbing heat from a heat-generating component, and a plurality of parallel fins having channels defined therebetween. Each of the fins includes a main body standing on the base. A row of protruding portions and openings is alternately arranged on the main body along a direction from a lateral side to an opposite lateral side of the heat sink. The protruding portions disturb and deflect an airflow flowing in the channels from the lateral side to the opposite side of the heat sink. The openings intercommunicate the channels with each other so that the airflow can flow from one of the channels to the other of the channels.