Heat dissipating device

Abstract

A heat dissipating device includes: a plurality of conduits stacked one above the other, each of the conduits including upper and lower halves, each including a base wall with two opposite end portions and an intermediate portion, a flange that extends from the base wall and that cooperates with the base wall to define a chamber half therebetween, and two protrusions that protrude respectively and outwardly of the chamber half from the end portions of the base wall, the protrusions being formed with a through-hole and being connected respectively to the protrusions of adjacent upper and lower halves of adjacent conduits; and a plurality of heat dissipating fin units, each is disposed between and is in contact with two adjacent ones of the conduits.

1 . A heat dissipating device characterized by: 
 a plurality of conduits stacked one above the other, each of said conduits being in fluid communication with an adjacent one of said conduits and including upper and lower halves, each of said upper and lower halves including a flat base wall that has a peripheral edge, two opposite end portions, and an intermediate portion extending between said end portions, each of said upper and lower halves further including a flange that extends from said peripheral edge of said base wall and that cooperates with said base wall to define a chamber half therebetween, and two protrusions that protrude respectively and outwardly of said chamber half from said end portions of said base wall, at least one of said protrusions of each of said upper and lower halves of each of said conduits being formed with a through-hole, said protrusions of each of said upper and lower halves of each of said conduits being connected respectively to said protrusions of an adjacent one of said upper and lower halves of an adjacent one of said conduits in such a manner so as to permit fluid communication between two adjacent ones of said conduits; and    a plurality of heat dissipating fin units, each of which is disposed between two adjacent ones of said conduits, and each of which is in contact with two adjacent ones of said intermediate portions of said base walls of said upper and lower halves of two adjacent ones of said conduits.    
   
   
       2 . The heat dissipating device of  claim 1 , characterized in that said flanges of said upper and lower halves of each of said conduits are welded to form a first seam therebetween.  
   
   
       3 . The heat dissipating device of  claim 2 , further characterized in that each of said protrusions of each of said upper and lower halves of each of said conduits is welded to the respective one of said protrusions of the adjacent one of said upper and lower halves of the adjacent one of said conduits to form a second seam therebetween.  
   
   
       4 . The heat dissipating device of  claim 3 , further characterized in that said chamber halves of said upper and lower halves of each of said conduits cooperatively define a fluid chamber in the respective one of said conduits, said conduits being arranged in such a manner that said fluid chambers in said conduits are formed into a tortuous fluid channel.