FLATTENED HEAT PIPE
The flattened heat pipe includes a flattened tube, a first wick structure, a second wick structure and a working fluid. The flattened tube has an annular wall and a chamber formed within the annular wall. The first wick structure is disposed on a portion of the annular wall. The second wick structure is disposed on another portion of the annular wall, and not overlapping with each other. The working fluid is filled in the chamber.
1 . A flattened heat pipe comprising:
a flattened tube, having an annular wall and a chamber formed within the annular wall;
a first wick structure, disposed on a portion of the annular wall;
a second wick structure, disposed on another portion of the annular wall, and not overlapping with each other; and
a working fluid filled in the chamber.
2 . The flattened heat pipe of claim 1 , wherein the flattened tube has two parallel sheets, and an overall height of the two sheets and the chamber is less than 2 mm.
3 . The flattened heat pipe of claim 1 , wherein the first wick structure is a plurality of grooves formed on the annular wall, and the second wick structure is sintered metal powder attached on the annular wall.
4 . The flattened heat pipe of claim 1 , wherein the first wick structure is a plurality of grooves formed on the annular wall, and the second wick structure is a mesh structure attached on the annular wall.
5 . The flattened heat pipe of claim 1 , wherein the first wick structure is a plurality of grooves formed on the annular wall, and the second wick structure is a bundle of fibers attached on the annular wall.
6 . The flattened heat pipe of claim 1 , wherein the first wick structure is sintered metal powder attached on the annular wall, and the second wick structure is sintered metal powder attached on the annular wall and formed with a plurality of grooves.
7 . The flattened heat pipe of claim 1 , wherein the first wick structure is a mesh structure attached on the annular wall, and the second wick structure is sintered metal powder attached on the annular wall.
8 . The flattened heat pipe of claim 1 , further comprising a pair of third wick structures, wherein the first wick structure is a mesh structure attached on the annular wall, the second wick structure is a mesh structure attached on the annular wall, and the third wick structures are separately attached on a remaining area of the annular wall, are out of contact with each other and do not overlap with the first and second wick structures.
9 . The flattened heat pipe of claim 1 , further comprising a pair of third wick structures, wherein the first wick structure is a mesh structure attached on the annular wall, the second wick structure is a mesh structure attached on the annular wall, and the third wick structures are separately attached on a remaining area of the annular wall, are in contact with each other and do not overlap with the first and second wick structures.
10 . The flattened heat pipe of claim 1 , wherein the first wick structure is a plurality of grooves formed on the annular wall, the second wick structure is sintered metal powder attached on the annular wall, and a remaining portion of the annular wall is formed with a smooth surface.
11 . A flattened heat pipe comprising:
a flattened tube, having an annular wall and a chamber formed within the annular wall;
a first wick structure, disposed on a portion of the annular wall and continuously over a front half and a rear half of the flattened tube;
a second wick structure, disposed on another portion of the annular wall and continuously over a front half and a rear half of the flattened tube, and not overlapping with each other; and
a working fluid filled in the chamber.
12 . The flattened heat pipe of claim 11 , wherein the flattened tube has two parallel sheets, and an overall height of the two sheets and the chamber is less than 2 mm.
13 . The flattened heat pipe of claim 11 , wherein the first wick structure is a plurality of grooves formed on the annular wall, and the second wick structure is sintered metal powder attached on the annular wall.
14 . The flattened heat pipe of claim 11 , wherein the first wick structure is a plurality of grooves formed on the annular wall, and the second wick structure is a mesh structure attached on the annular wall.
15 . The flattened heat pipe of claim 11 , wherein the first wick structure is a plurality of grooves formed on the annular wall, and the second wick structure is a bundle of fibers attached on the annular wall.
16 . The flattened heat pipe of claim 11 , wherein the first wick structure is sintered metal powder attached on the annular wall, and the second wick structure is sintered metal powder attached on the annular wall and formed with a plurality of grooves.
17 . The flattened heat pipe of claim 11 , wherein the first wick structure is a mesh structure attached on the annular wall, and the second wick structure is sintered metal powder attached on the annular wall.
18 . The flattened heat pipe of claim 11 , further comprising a pair of third wick structures, wherein the first wick structure is a mesh structure attached on the annular wall, the second wick structure is a mesh structure attached on the annular wall, and the third wick structures are separately attached on a remaining area of the annular wall, are out of contact with each other and do not overlap with the first and second wick structures.
19 . The flattened heat pipe of claim 11 , further comprising a pair of third wick structures, wherein the first wick structure is a mesh structure attached on the annular wall, the second wick structure is a mesh structure attached on the annular wall, and the third wick structures are separately attached on a remaining area of the annular wall, are in contact with each other and do not overlap with the first and second wick structures.
20 . The flattened heat pipe of claim 11 , wherein the first wick structure is a plurality of grooves formed on the annular wall, the second wick structure is sintered metal powder attached on the annular wall, and a remaining portion of the annular wall is formed with a smooth surface.