Heat dissipation module and heat pipe thereof

Abstract

A heat dissipation module includes a heat pipe and a plurality of fins disposed around the heat pipe. The heat pipe includes a main body, a base, a first wick, a second wick and a working fluid. The main body has a top portion and a sidewall portion disposed around the top portion. The base is combined with the main body to form a closed chamber. The base is disposed corresponding to the top portion and has an uneven surface facing the top portion. The first wick is disposed on the sidewall portion and the top portion of the main body, the second wick is disposed on the base, and the working fluid is filled within the closed chamber.

1 . A heat pipe, comprising: 
 a main body comprising a top portion and a sidewall portion disposed around the top portion;    a base disposed corresponding to the top portion and having an uneven surface facing the top portion wherein the base and the main body are combined to form a closed chamber,    a first wick disposed on the sidewall portion and the top portion;    a second wick disposed on the base and connected to the first wick; and    a working fluid filled within the closed chamber.    
   
   
       2 . The heat pipe according to  claim 1 , wherein the sidewall portion and the top portion are integrally formed as a single piece, or the sidewall portion and the top portion are two separate components and are combined to form the main body.  
   
   
       3 . The heat pipe according to  claim 1 , wherein the uneven surface of the base is formed with at least one protrusion.  
   
   
       4 . The heat pipe according to  claim 3 , wherein a cross section of the protrusion on the uneven surface of the base has a semi-spherical, arc, triangular, quadrangular, rectangular or trapezoidal shape.  
   
   
       5 . The heat pipe according to  claim 1 , wherein the uneven surface of the base is formed with a plurality of protrusions, and the protrusions constitute a checkerboard pattern, an array pattern, a symmetrical pattern or an asymmetrical pattern.  
   
   
       6 . The heat pipe according to  claim 1 , wherein the second wick is disposed over the uneven surface of the base such that the second wick facing the top portion forms a plane, and the second wick has a first thickness and a second thickness relatively smaller than the first thickness in a direction perpendicular to the base.  
   
   
       7 . The heat pipe according to  claim 1 , wherein the second wick is disposed on the uneven surface of the base along a profile of the base, and the second wick has a uniform thickness or a varied thickness.  
   
   
       8 . The heat pipe according to  claim 1 , wherein an inner surface of the top portion of the main body has an even shape, or an inner surface of the top portion of the main body has an uneven shape and is formed with at least one protrusion.  
   
   
       9 . The heat pipe according to  claim 8 , wherein the inner surface of the top portion is formed with a plurality of protrusions, and the protrusions constitute a checkerboard pattern, an array pattern, a symmetrical pattern or an asymmetrical pattern.  
   
   
       10 . The heat pipe according to  claim 1 , wherein the first wick is disposed on an inner surface of the top portion such that the first wick facing the base forms a plane, and the first wick has a third thickness and a fourth thickness relatively smaller than the third thickness in a direction perpendicular to the top portion.  
   
   
       11 . The heat pipe according to  claim 10 , wherein the first wick is disposed on the inner surface of the top portion along a profile of the top portion, and the first wick has a uniform thickness or a varied thickness.  
   
   
       12 . The heat pipe according to  claim 1 , wherein an inner surface of the sidewall portion of the main body has an uneven shape and is formed with at least one protrusion.  
   
   
       13 . The heat pipe according to  claim 12 , wherein the inner surface of the sidewall portion of the main body is formed with a plurality of protrusions and a cross section of the sidewall portion constitutes a sawtooth ring pattern or a continuous semi-circular pattern.  
   
   
       14 . The heat pipe according to  claim 12 , wherein the first wick is disposed on the inner surface of the sidewall portion such that the first wick facing the closed chamber forms a plane.  
   
   
       15 . The heat pipe according to  claim 14 , wherein the first wick is disposed along a profile of the inner surface of the sidewall portion, and the first wick has a uniform thickness or a varied thickness.  
   
   
       16 . The heat pipe according to  claim 1 , wherein the base has a circular, rectangular or other shape.  
   
   
       17 . A heat dissipation module, comprising: 
 a heat pipe comprising a main body, a base, a first wick, a second wick and a working fluid, wherein the base and the main body are combined to form a closed chamber, the base has an uneven surface, the second wick is connected to the first wick, the first wick and the second wick are disposed on an inner surface of the main body; and the working fluid is filled in the closed chamber; and    a plurality of fins disposed around the heat pipe.    
   
   
       18 . The heat dissipation module according to  claim 17 , wherein the main body comprises a top portion and a sidewall portion disposed around the top portion, the base is disposed corresponding to the top portion, the uneven surface of the base faces the top portion, and the first wick is disposed on the top portion and the sidewall portion of the main body.  
   
   
       19 . The heat dissipation module according to  claim 17 , wherein the fins are arranged in a horizontal interval distribution, a vertically interval distribution, a slantingly interval distribution or a radial distribution.  
   
   
       20 . The heat dissipation module according to  claim 17 , wherein the fins are formed by way of aluminum extrusion or pressing.