Patent ID: 8096136
Filing Date: 2012-01-17
Classification: H01L

Abstract:
1. A heat dissipation device adapted for dissipating heat generated by electronic components, the heat dissipation device comprising: a heat absorber adapted for thermally contacting the electronic components; a fin group mounted on the heat absorber; a fan mounted on the fin group; a fan duct mounted on the fan; and a thermoelectric cooler secured on the fan duct, the thermoelectric cooler comprising a cooling module, a first heat sink and a second heat sink, the cooling module having a Peltier effect and extending through a sidewall of the fan duct and secured on the sidewall, opposite ends of the cooling module extending through the sidewall and located at opposite sides of the sidewall, a cold surface and a hot surface formed on the opposite ends of the cooling module, respectively, the first heat sink and the second heat sink located at opposite sides of the sidewall, each of the first heat sink and the second heat sink define a recess therein, the opposite ends of the cooling module correspondingly received in the recesses of the first heat sink and the second heat sink and intimately engaging with the first heat sink and the second heat sink, the first heat sink enclosed by the fan duct and thermally contacting the cold surface of the cooling module, the second heat sink located at an outside of the fan duct and thermally contacting the hot surface of the cooling module; wherein when the fan works, an airflow first flows through the first heat sink and then reaches the fin group via the fan; wherein each of the first heat sink and the second heat sink comprises a base, each base having a first surface; and wherein the first surfaces of the bases of the first heat sink and the second heat sink thermally contact an inner surface and an outer surface of the sidewall of the fan duct, respectively.