Vapor chamber having composite supporting structure

Abstract

A vapor chamber having a composite supporting structure includes a flat sealed casing; a wick structure, a working fluid and a composite supporting structure. The composite supporting structure has a waved supporting rack and at least one supporting pillar. The waved supporting rack is configured to support upper and lower inner walls of the flat sealed casing. The waved supporting rack has plural separated channels for allowing vapor of the working fluid to flow through. Both ends of the at least one supporting pillar are respectively connected to the flat sealed casing or the wick structure. With this arrangement, compressive strength and tensile strength of the vapor chamber can be increased simultaneously without obstructing the circulation of liquid/vapor phases of the working fluid and reducing the thermal-conducting efficiency thereof.

1 . A vapor chamber having a composite supporting structure, comprising:
 a flat sealed casing;   a wick structure arranged on inner walls of the flat sealed casing;   a working fluid filled within the flat sealed casing; and   a composite supporting structure mounted in the flat sealed casing, the composite supporting structure having a waved supporting rack and at least one supporting pillar.   
     
     
         2 . The vapor chamber having a composite supporting structure according to  claim 1 , wherein the waved supporting rack is configured to support an upper inner wall and a lower inner wall of the flat sealed casing, the waved supporting rack has a plurality of separated channels for allowing vapor of the working fluid to flow through. 
     
     
         3 . The vapor chamber having a composite supporting structure according to  claim 2 , wherein the waved supporting rack comprises at least two side plates and a plurality of waved pieces connected between the two side plates, each of the waved pieces is constituted of a plurality of wave-crest sections and a plurality of wave-recess sections, the wave-crest sections of any two adjacent waved pieces are staggered to each other, the wave-recess sections are staggered to each other, the wave-crest sections are located in a level higher than that of a top surface of the side plate, and the wave-recess sections are located in a level lower than that of a bottom surface of the side plate, and the separated channels are formed between any two adjacent waved pieces. 
     
     
         4 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein both ends of the at least one supporting pillar are respectively connected to the upper inner wall and the lower inner wall of the flat sealed casing. 
     
     
         5 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein both ends of the at least one supporting pillar are respectively connected to the upper inner wall of the flat sealed casing and the wick structure. 
     
     
         6 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein both ends of the at least one supporting pillar are respectively connected to the lower inner wall of the flat sealed casing and the wick structure. 
     
     
         7 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein both ends of the at least one supporting pillar are respectively connected to the wick structure. 
     
     
         8 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein the at least one supporting pillar is made of metallic materials, the wick structure is made by sintering metallic powders, the wick structure is connected to the supporting pillar by any one of a heat fusion process at high temperature, sintering, brazing or soldering. 
     
     
         9 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein the at least one supporting pillar is disposed toward four corners inside the flat sealed casing and away from the waved supporting rack. 
     
     
         10 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein the at least one supporting pillar is disposed in an opening formed inside the waved supporting rack. 
     
     
         11 . The vapor chamber having a composite supporting structure according to  claim 3 , wherein an outer upper surface of the flat sealed casing is formed with a recess corresponding to the at least one supporting pillar.