Heat pipe with a radial flow shunt design

Abstract

A heat pipe includes a pipe body filled up with a working fluid and having opposing evaporation segment and condensing segment, a first wick structure having ribs axially extending through the evaporation segment and the condensing segment, a channel defined between each two adjacent ribs and grooves transversely cut through the ribs, and a second wick structure sintered and joined to a predetermined part of the first wick structure in the evaporation segment to fill in the channels and the spiral grooves and to cover the ribs.

1 . A heat pipe, comprising:
 a pipe body filled up with a working fluid, said pipe body comprising opposing evaporation segment and condensing segment;   a first wick structure comprising a plurality of ribs axially extending through said evaporation segment and said condensing segment, a channel defined between each two adjacent ribs of said ribs, and a plurality of grooves arranged in said evaporation segment and cut through said ribs to keep said channels in communication with one another; and   a second wick structure sintered and joined to a predetermined part of said first wick structure, said second wick structure filled in said channels and said spiral grooves and covering said ribs.   
     
     
         2 . The heat pipe as claimed in  claim 1 , wherein said grooves are spirally cut through said ribs such that said channels and said grooves are intersected, forming a lattice pattern. 
     
     
         3 . The heat pipe as claimed in  claim 1 , wherein said second wick structure filled in said channels and said spiral grooves and covering said ribs in said evaporation segment of said pipe body.