Thin heating pipe

Abstract

A thin heating pipe includes a pipe, a main capillary structure, a first capillary structure, and a second capillary structure. The pipe has a hollow chamber and a connecting chamber. The first capillary structure is disposed in the chamber and between the first and the second capillary structures. The first capillary structure has a first channel, the second capillary structure has a second channel, and the connecting chamber is communicated with the first channel and the second channel.

What is claimed is: 
     
         1 . A thin heating pipe, comprising:
 a pipe having a hollow chamber and a connecting chamber communicated with the hollow chamber, wherein the hollow chamber is extended along an extending path;   a main capillary structure, disposed in the hollow chamber, extended along the extending path;   a first capillary structure, disposed on a side surface of the main capillary structure, having a first channel parallel to the extending path; and   a second capillary structure, disposed on an opposite side surface of the main capillary structure, having a second channel parallel to the extending path,   wherein the connecting chamber is communicated with the first channel and the second channel,   wherein the main capillary structure is located between the first channel and the second channel, and   wherein the hollow chamber has a top surface and a bottom surface opposite to the top surface, and the main capillary structure and the first and second capillary structures are disposed on the top surface and the bottom surface.   
     
     
         2 . The thin heating pipe as claimed in  claim 1 , wherein the main capillary structure and the first and second capillary structures are formed as a single piece and have the same material. 
     
     
         3 . The thin heating pipe as claimed in  claim 1 , wherein the hollow chamber has a central zone extended along the extending path, the main capillary structure is located at the central zone, and the central zone is located between the first channel and the second channel. 
     
     
         4 . The thin heating pipe as claimed in  claim 1 , wherein the hollow chamber has a first side surface and a second side surface opposite to the first side surface, the first capillary structure is disposed on the first side surface, the second capillary structure is disposed on the second side surface, the first channel is adjacent to the first side surface, and the second channel is adjacent to the second side surface. 
     
     
         5 . The thin heating pipe as claimed in  claim 1 , wherein the hollow chamber has a heating zone and a cooling zone, the first and second capillary structures are located at the heating zone, the main capillary structure is located the heating zone and the cooling zone, and the connecting chamber is adjacent to the cooling zone. 
     
     
         6 . The thin heating pipe as claimed in  claim 5 , wherein the first channel and the second channel are extended to the cooling zone. 
     
     
         7 . The thin heating pipe as claimed in  claim 5 , wherein transverse cross-section areas of the first and second channels at the cooling zone are greater than transverse cross-section areas of the first and second channels at the heating zone. 
     
     
         8 . The thin heating pipe as claimed in  claim 1 , wherein each of the first and second capillary structures has a ring transverse cross-section, and the first and second channels are respectively located in the ring transverse cross-sections. 
     
     
         9 . The thin heating pipe as claimed in  claim 1 , wherein the extending path is straight. 
     
     
         10 . The thin heating pipe as claimed in  claim 1 , wherein the thin heating pipe is a flat sealed structure. 
     
     
         11 . The thin heating pipe as claimed in  claim 1 , wherein the main capillary structure and the first and second capillary structures are powder structures or meshed structures.