Structure of heat pipe with adjustable working temperature range

Abstract

A structure of heat pipe with adjustable working temperature range are provided. The heat pipe includes a tube, a capillary structure and a working liquid. The tube includes a passage having a length direction and a diameter direction. Besides, a part of the tube has a pressed deformation zone in the pipe diameter direction, and the pressed cross-sectional area of the deformation zone in the diameter direction is reduced by a reduction ratio with respect to an original cross-sectional area before pressing, so that the deformation zone has a higher fluid resistance. Thereby, the heat pipe can be operated under a certain working temperature range, and the working object can achieve the working efficiency.

What is claimed is: 
     
         1 . A structure of heat pipe with adjustable working temperature range, comprising a tube, a capillary structure disposed on an inner wall of the tube, and a working liquid disposed in the tube; the tube comprising a passage having a length direction and a diameter direction perpendicular to the length direction; the working liquid absorbing heat of the working object and being converted into a vapor phase and passing the passage to perform a condensation reaction along the length direction and condensing back to the working liquid; the working liquid moving to a location where the working object attached thereto and absorbing heat of the working object; wherein a part of the tube having a deformation zone in the pipe diameter direction, and a cross-sectional area of the deformation zone in the diameter direction reduced by a reduction ratio with respect to an original cross-sectional area before the deformation zone being pressed, so that the deformation zone having a higher fluid resistance. 
     
     
         2 . The structure of heat pipe with adjustable working temperature range according to  claim 1 , wherein the tube includes a first section and a second section located at opposite sides of the deformation zone; the deformation zone has a length shorter than that of the first section and the second section 
     
     
         3 . The structure of heat pipe with adjustable working temperature range according to  claim 1 , wherein the reduction ratio is 25% to 75%. 
     
     
         4 . The structure of heat pipe with adjustable working temperature range according to  claim 3 , wherein the reduction ratio is 75%.