Heat sink structure with heat pipe

Abstract

A heat sink structure with heat pipe includes at least one aluminum fin assembly and at least one copper heat pipe, which are made of dissimilar metal materials. The aluminum fin assembly includes at least one through hole and al least one groove, in which a copper embedding layer is provided for contacting with and connected to the copper heat pipe. By providing the copper embedding layer, the connection between the aluminum fin assembly and the copper heat pipe made of dissimilar metal materials is improved, and the problems of eutectic grains formed on the surface of the aluminum fin assembly and environmental pollution caused by electroless nickel plating are eliminated.

What is claimed is: 
     
         1 . A heat sink structure with heat pipe, comprising:
 at least one aluminum fin assembly being formed of a plurality of aluminum fins sequentially fastened to one another, and having a bottom surface and a top surface; any two adjacent ones of the aluminum fins defining a flow passage between them; the bottom surface being provided with at least one groove, which has an open side and a groove inner surface; the aluminum fins being respectively provided with a through hole that extends through the aluminum fin in a thickness direction thereof, and the through holes respectively including a flange, which is projected from one side of the aluminum fin and internally defines a flange inner surface; the groove inner surface and flange inner surfaces being areas of the aluminum fin assembly for connecting to other members of the heat sink structure and being provided with a copper embedding layer thereon, which includes a deepening surface and a connecting surface; and the deepening surface bonding to and deeply penetrating into the groove inner surface and the flange inner surfaces; and   at least one copper heat pipe having a first end and a second end extended through the through holes and the groove on the aluminum fin assembly, respectively; the first end being connected to the flanges by loose fit and being in contact with and connected to the connecting surface of the copper embedding layer provided on the flange inner surfaces; and the second end being in contact with and connected to the connecting surface of the copper embedding layer provided on the groove inner surface.   
     
     
         2 . The heat sink structure with heat pipe as claimed in  claim 1 , wherein the second end of the at least one copper heat pipe has an exposed surface and a contact surface; and the exposed surface being exposed from the groove while the contact surface being in contact with and connected to the connecting surface of the copper embedding layer provided on the groove inner surface.