THIN HEAT PIPE

• US 20130175008A1
• Filed: 01/10/2012
• Published: 07/11/2013
• Est. Priority Date: 01/10/2012
• Status: Abandoned Application

• Current Assignee: Cooler Master Development Corporation
• Original Assignee: Cooler Master Development Corporation
• Inventors: Lin, Chun-Hung, Yeh, Chien-Chih, Chen, Wen-Shiang, Tao, Chian
• Application Number:
  US13/347,640
• Publication Number:
  US 20130175008A1
• Time in Patent Office: Days
• US Class Current: 165/104.26
• CPC Class Codes: F28D 15/0233 the conduits having a particular shape, e.g. non-circular cross-section, annular F28D15/0241, F28D15/0266 take precedence
• CPC Class Codes: F28D 15/046 characterised by the material or the construction of the capillary structure
• CPC Class Codes: F28F 13/187 especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
• CPC Class Codes: F28F 2245/02 hydrophilic
• CPC Class Codes: F28F 2245/04 hydrophobic

Abstract

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.

Claims

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 μ

m and 100 μ

m.

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.