Patent ID: 8050035
Filing Date: 2011-11-01
Classification: F28F,H01L

Abstract:
1. A heat dissipation device comprising: a cooling fan comprising a motor-stator and an impeller mounted around the motor-stator; and a heat sink on which the cooling fan is mounted, the heat sink comprising a plurality of fins and defining at least one notch incising the fins, the at least one notch being angled towards a portion of the heat sink immediately under the motor-stator of the cooling fan; wherein the fins are divided into a first group at a front side of the heat sink and a second group at a rear side of the heat sink, the fins of the first group angling from the front side towards the portion of the heat sink immediately under the motor-stator, and the fins of the second group angling from the rear side towards the portion of the heat sink immediately under the motor-stator.