HEAT DISSIPATION DEVICE USED IN LED LAMP

摘要

A heat dissipation device (100) for dissipating heat of LEDs (80) includes a heat sink (10). The heat sink includes a plurality of fins (12). Each of the plurality of fins defines a plurality of notches (120) in a peripheral edge thereof. The fins are spaced from each other from top to bottom. The notches coincide with each other from top to bottom so as to form a plurality of vertical air channels (122) in a periphery of the heat sink. A thermal base (40) has a bottom face to which the LEDs are attached. A U-shaped heat pipe (30) has an evaporator (32) connected to the thermal base and a condenser (35) extending upwardly through the fins.