THIN HEAT PIPE
A thin heat pipe includes a thin hollow tube and a capillary structure. The capillary structure is formed in at least half of an inner wall of the thin hollow tube by a chemical etching process.
1 . A thin heat pipe comprising:
a thin hollow tube; and
a capillary structure formed in at least half of an inner wall of the thin hollow tube by a chemical etching process.
2 . The thin heat pipe of claim 1 , wherein a wall thickness of the thin hollow tube is between 0.2 mm and 0.3 mm.
3 . The thin heat pipe of claim 1 , wherein the capillary structure is a groove-type capillary structure.
4 . The thin heat pipe of claim 1 , wherein the capillary structure is a porous capillary structure comprising a plurality of micro-holes and a diameter of each micro-hole is between 1 μm and 100 μm.
5 . The thin heat pipe of claim 4 , wherein a shape of each micro-hole is irregular.
6 . The thin heat pipe of claim 1 , wherein a thickness of the capillary structure is between ⅓ times and ⅔ times a wall thickness of the thin hollow tube.
7 . The thin heat pipe of claim 1 , wherein the thin hollow tube has an evaporation end and a condensation end, and the capillary structure at least covers the evaporation end.
8 . The thin heat pipe of claim 7 , wherein the evaporation end is hydrophilic and the condensation end is hydrophobic.