Heat dissipation device with heat pipe

Abstract

An exemplary heat dissipation device includes a heat pipe and a fin assembly. The heat pipe includes a main body and an end portion. The end portion has a width smaller than that of the main body. The fin assembly includes a first fin and a second fin adjoining to the first fin. The first fin forms a flange from a side of thereof. The second fin forms a flange from a side of thereof. The flange of the first fin has an extending portion overlapping and soldering to the flange of the second fin. The extending portion defines a number of through holes corresponding to the flange of the second fin. The end portion of the heat pipe is soldered to the extending portion of the first fin and soldered to the flange of the second fin by the through holes of the extending portion.

1 . A heat dissipation device comprising:
 a heat pipe comprising a main body and an end portion , the end portion having a width smaller than a with of the main body; and   a fin assembly comprising a first fin and a second fin adjoining to the first fin, the first fin forming a first flange from a side of thereof, the second fin forming a first flange from a side of thereof, the first flange of the first fin having an extending portion overlapping and soldering to the first flange of the second fin, the extending portion defining a number of through holes corresponding to the first flange of the second fin; wherein the end portion of the heat pipe is soldered to the extending portion of the first fin and soldered to the first flange of the second fin by solder filled in the through holes of the extending portion.   
     
     
         2 . The heat dissipation device of  claim 1 , wherein the fin assembly further comprises a number of third fins, each of the third fins having a first flange coplanar with the first flange of the first fin and soldered with the main body of the heat pipe. 
     
     
         3 . The heat dissipation device of  claim 2 , wherein the first flanges of the first fin, the second fin, and the third fins extend from the end portion of the heat pipe to the main body. 
     
     
         4 . The heat dissipation device of  claim 3 , wherein a middle potion of the first flange of the second fin is concave to received the extending portion of the first fin. 
     
     
         5 . The heat dissipation device of  claim 1 , wherein a width of the extending portion of the first fin is a summation of the width of the first flange of the first fin and a width of the first flange of the second fin. 
     
     
         6 . The heat dissipation device of  claim 1 , wherein the first fin forms a second flange at an opposite side thereof, the second fin forming a second flange coplanar to the second flange of the first fin. 
     
     
         7 . A heat dissipation device comprising:
 a heat pipe comprising a main body and an end portion , the end portion having a width smaller than a with of the main body; and   a fin assembly comprising a number of first fins and second fins, the first fins and the second fins being alternately arranged, each of the first fin forming a first flange from a side of thereof, each of the second fin forming a first flange from a side of thereof, the first flange of each first fin having an extending portion overlapping and soldering on the first flange of adjoining one of the second fins; wherein the end portion of the heat pipe is soldered to the extending portion of an outermost one of the first fins.   
     
     
         8 . The heat dissipation device of  claim 7 , wherein the extending portion of each of the first fins defines a number of through holes corresponding to the first flange of the adjoining second fin for accommodating solder. 
     
     
         9 . The heat dissipation device of  claim 7 , wherein the first flanges of the first fins and the second fin extend from the end portion of the heat pipe to the main body. 
     
     
         10 . The heat dissipation device of  claim 7 , wherein a middle potion of the first flange of each second fin is concave to receive the extending portion of the adjoining first fin. 
     
     
         11 . The heat dissipation device of  claim 7 , wherein a width of the extending portion of each first fin is a summation of the width of the first flange of each first fin and a width of the first flange of each second fin. 
     
     
         12 . The heat dissipation device of  claim 7 , wherein the first fins and the second fins each form a second flange at an opposite side thereof, the second flanges being coplanar to the each other. 
     
     
         13 . A heat dissipation device comprising:
 a first fin comprising a main body and a flange extending from an edge of the main body;   a second fin comprising a main body adjoining the first fin and a flange extending from an edge of the main body, an outer portion of the flange of the first fin overlapping the flange of the second fin, at least one through hole being defined in the outer portion of the flange of the first fin for accommodating solder; and   a heat pipe comprising a main body and an end portion with a width less than that of the main body, the end portion of the heat pipe being soldered to the flange of the first fin and the flange of the second fin by solder filled in the at least one through hole.