Patent ID: 9702635
Date: 2017-07-11
CPC Classifications: F28D,H01L,H05K

Claim:
1. A loop heat pipe structure with a liquid and vapor separation, comprising: an evaporation chamber having a hollow internal and having two connecting ports connected to the internal thereof; and an inner wall of the evaporation chamber having a liquid-preservation capillary structure; and a loop pipe having two evaporation channel tubular portions and a condensation tubular portion connected between the two evaporation channel tubular portions; and the two evaporation channel tubular portions connected to the two connecting ports of the evaporation chamber respectively; wherein each one of the evaporation channel tubular portions comprises an inner tube and an outer tube; the inner tube is sleeved inside the outer tube; and a flow-returning capillary structure is disposed between the outer tube and the inner tube inside the outer tube; the flow-returning capillary structure extends into the evaporation chamber and is in contact with the liquid-preservation capillary structure; wherein the inner tube of each one of the evaporation channel tubular portions protrudes further than the outer tube into the evaporation chamber.