Water cooling device and collector thereof

Abstract

A water cooling device includes a first collector, a second collector and a plurality of tubes. The first collector includes a receiving chamber and a plurality of distribution chamber. The receiving chamber has an inlet for receiving a working fluid. Each of the distribution chambers includes a first wall portion and a second wall portion opposite to the first wall portion. The first wall portion has an opening communicating with the receiving chamber. The second wall portion has an outlet. Each of the tubes is connected to the outlet of one of the distribution chambers on one end, and is connected to the second collector on another end.

What is claimed is: 
     
         1 . A collector, comprising:
 a housing having an inlet, a plurality of outlets and a wall portion, wherein the inlet is configured to receive a working fluid, the wall portion has at least one distribution groove, the distribution groove has a first end at the inlet and at least one second end at one of the outlets.   
     
     
         2 . The collector of  claim 1 , wherein the distribution groove is recessed into the wall portion. 
     
     
         3 . The collector of  claim 1 , wherein the at least one distribution groove is plural in number, and a size of the distribution groove is positively correlated with a distance from one of the outlets corresponding to the distribution groove to the inlet. 
     
     
         4 . The collector of  claim 1 , wherein a cross-sectional area of the distribution groove increases with an increasing distance from the inlet. 
     
     
         5 . The collector of  claim 1 , wherein the at least one second end is plural in number, and a size of the second end is positively correlated with a distance from one of the outlets corresponding to the second end to the inlet. 
     
     
         6 . The collector of  claim 1 , wherein the at least one distribution groove is plural in number, and a width, height or cross-sectional area of the distribution groove is positively correlated with a distance from one of the outlets corresponding to the distribution groove to the inlet. 
     
     
         7 . The collector of  claim 1 , wherein the at least one distribution groove comprises a first distribution groove recessed into a first wall portion and a second distribution groove recessed into a second wall portion that is opposite to the first wall portion. 
     
     
         8 . The collector of  claim 7 , wherein one of the outlets is disposed between the first distribution groove and the second distribution groove. 
     
     
         9 . The collector of  claim 1 , wherein the distribution groove has the first end at the inlet and two second ends at a first outlet and a second outlet respectively. 
     
     
         10 . The collector of  claim 9 , wherein a distance from the first outlet to the inlet is less than a distance from the second outlet to the inlet, a cross-sectional area of the second end at the first outlet is less than a cross-sectional area of the second end at the second outlet.