Patent ID: 8837139

Claim:
A flat radiator with heat pipe for cooling electronic chips, comprising at least one heat pipe, at least one air convective extended heat exchange surface, and one or more fans, wherein said fan is a centrifugal type, wherein said heat pipe is a plate type, or a flat tubular heat pipe in a single row, or several tubular heat pipes arranged side by side, wherein said air convective extended heat exchange surface adopts a fin structure, and surrounds an impeller of said fan, and is facing the air outlet of said impeller; and more than half of said fins surrounding said impeller are arranged in an arc shape; and said fins in an arc shape and surrounding said impeller have a structure that the fin blades of said fins incline toward the rotating direction of said impeller or said fins in an arc shape and surrounding said impeller have a structure that the fin blades of said fins are bended and the channel between the two adjacent banded fin blades is not straight, and the air inlet front edge of said fin blade bends against the rotating direction of said impeller, wherein said fins have an intensifying air convection heat transfer structure that the surface of the fin blade of said fins is cut into several discontinuous segments to form a staggered short fin structure.