Patent ID: 7990699

Claim:
A heat dissipation device being configured for dissipating heat of a memory module, the heat dissipation device comprising: two fin assemblies, each of the fin assemblies comprising a plurality of fins, each of the fins defining an axle hole, the axle holes of the fin assemblies aligning with each other and receiving a pivot therethrough, the fin assemblies thereby pivotally assembled together through the pivot; two heat spreaders adapted for being arranged at two opposite side surfaces of the memory module to absorb heat generated by memory chips of the memory module; and two heat pipes each comprising an evaporation section and a condensation section formed at two opposite ends thereof, the condensation sections of the heat pipes being respectively attached to the fin assemblies, the evaporation sections of the heat pipes being respectively and thermally attached to the heat spreaders, whereby the heat of the memory module is transferred by the heat pipes from the heat spreaders to the fin assemblies for dissipation when the heat dissipation device is configured to the memory module.