US Patent 7441592 Cooler module

A cooler module includes a metal base member, which has accommodation grooves, clamping strips respectively extending along two sides of each accommodation groove, and positioning grooves between each two adjacent accommodation grooves; U-shaped heat tubes that have the respective bottom ends accommodated in the accommodation grooves and secured thereto by the clamping strips of the base member; and radiation fins, which have through holes that receive the top ends of the heat tubes, a plurality of bottom notches respectively attached to the periphery of the bottom ends of the heat tubes, and a plurality of positioning strips respectively engaged into the positioning grooves of the base member.