Joint vapor chamber assembly with vapor chambers connected by extension wick layer

Abstract

A joint vapor chamber assembly with vapor chambers connected by an extension wick layer is provided. The vapor chambers each have therein a closed space being a vacuum and filled with a working liquid. The joint vapor chamber assembly includes: a base having a first recess, second recess, liquid flow channel and gaseous flow channel in communication with each other; an upper lid coupled to the base to jointly form the closed space, the closed space including the first and second recesses, liquid and gaseous flow channels; a wick structure disposed in the closed space and facing the first and second recesses; an extension wick layer filling the liquid flow channel partially to prevent any gas from entering the first and second recesses via the liquid flow channel. Two ends of the extension wick layer extend from the liquid flow channel to come into contact with the wick structure.

What is claimed is: 
     
         1 . A joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer, the vapor chambers each having therein a closed space being a vacuum and being filled with a working liquid, the joint vapor chamber assembly comprising:
 a base comprising a first recess, a second recess, a liquid flow channel and a gaseous flow channel in communication with each other;   an upper lid coupled to the base to jointly form the closed space, the closed space including the first recess, the second recess, the liquid flow channel and the gaseous flow channel;   a wick structure disposed in the closed space and corresponding in position to the first recess and the second recess; and   an extension wick layer formed in the liquid flow channel, with the liquid flow channel partially filled with the extension wick layer to prevent any gas from flowing within the first recess and the second recess via the liquid flow channel, wherein two ends of the extension wick layer extend from the liquid flow channel to come into contact with the wick structure.   
     
     
         2 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 1 , wherein the liquid flow channel is fully filled with the extension wick layer. 
     
     
         3 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 1 , wherein two ends of the extension wick layer each have an extension segment, the two extension segments extending into the first recess and the second recess by a predetermined length and not being in contact with an inner wall of the first recess and an inner wall of the second recess but spaced apart therefrom by an appropriate distance, respectively. 
     
     
         4 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 3 , wherein the two extension segments are formed by extending two ends of the extension wick layer toward the same side. 
     
     
         5 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 3 , wherein the two extension segments are formed by extending two ends of the extension wick layer toward two different sides, respectively. 
     
     
         6 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 1 , wherein an end of the extension wick layer has an extension segment, the extension segment extending into the first recess without filling the first recess fully, the extension segment having a main segment portion and a plurality of branch segment portions, the main segment portion being rectangular, with the branch segment portions spaced apart from each other and extending from a side of the main segment portion toward the gaseous flow channel. 
     
     
         7 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 1 , wherein the base has two liquid flow channels and two gaseous flow channels, with the two extension wick layers disposed in the two liquid flow channels, respectively, whereas at least a portion of each said liquid flow channel is fully filled with a corresponding one of the extension wick layer such that a gaseous working fluid leaving the two gaseous flow channels is prevented from entering the two liquid flow channels, wherein two ends of the two extension wick layers not only extend from the two liquid flow channels by a predetermined distance and extend into the first recess and the second recess, respectively, but are also connected by two extension segments. 
     
     
         8 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 7 , wherein the first recess and the second recess of the base are in communication with each other by two connection channels, and each said connection channel is partitioned by a partition board therein into a liquid flow channel and a gaseous flow channel, with the two liquid flow channels disposed on opposing inner sides of the two connection channels, respectively, and the two gaseous flow channels disposed on opposing outer sides of the two connection channels, respectively. 
     
     
         9 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 1 , wherein the first recess, the second recess, the liquid flow channel and the gaseous flow channel are coplanar. 
     
     
         10 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 1 , wherein the wick structure comprises a first wick layer, a second wick layer, a third wick layer and a fourth wick layer, with the first wick layer formed on the upper lid in such a manner to face the first recess, the second wick layer formed on the upper lid in such a manner to face the second recess, the third wick layer formed on the base and in the first recess, and the fourth wick layer formed on the base and in the second recess. 
     
     
         11 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 10 , wherein a plurality of raised portions is disposed between the first wick layer, the second wick layer, the third wick layer, and the fourth wick layer and provided in form of solid copper lumps. 
     
     
         12 . The joint vapor chamber assembly with a plurality of vapor chambers connected by an extension wick layer according to  claim 10 , wherein a plurality of raised portions is disposed between the first wick layer, the second wick layer, the third wick layer, and the fourth wick layer and made from sintered copper powder.