Patent ID: 7650929

Claim:
A horizontal cooler module, comprising a heat sink formed of a stack of radiation fins, a base block attached to said heat sink, and a plurality of heat pipes filled up with a working fluid and tightly inserted through the radiation fins of said heat sink and closely attached to said base block, wherein: said base block is a metal block, having a top wall fitting one side of said heat sink, a plurality of bottom open grooves formed on a bottom wall thereof, and a plurality of clamping ribs each extending along two opposite sides of two said bottom open grooves and each having a longitudinal cut with a V-shaped cross section; said heat pipes each have a first extension arm respectively fastened to each of the radiation fins of said heat sink and a second extension arm respectively and tightly fitted into said bottom open grooves of said base block, said second extension arm having a flat wall portion exposed to the outside of said base block and kept in flush with the bottom wall of said base block for direct contact with a heat source to transfer heat energy from the heat source to said heat sink for dissipation.