Radiating fin structureand thermal module using same

Abstract

A radiating fin structure includes a main body being angularly upward extended from a first surface to form at least a first and a second ascending airflow-guiding section, so that a first and a second exterior angle are respectively contained between a line extended from an opposite second surface of the main body and the first and the second ascending airflow-guiding section. A thermal module using the radiating fin structure is also disclosed. The thermal module includes at least one heat pipe, a plurality of the above-described radiating fins sequentially extended through by an end of the heat pipe, and a base receiving another end of the heat pipe therein. An ascending airflow passage is defined between any two vertically adjacent first ascending airflow-guiding sections and any two vertically adjacent second ascending airflow-guiding sections to enhance natural convection and accordingly largely upgrades the natural cooling efficiency of the thermal module.

1 . A radiating fin structure comprising a main body having an upper and a lower side defining a first and a second surface, respectively; and the main body having at least one pair of opposite ends angularly upward extended from the first surface to form at least a first ascending airflow-guiding section and at least a second ascending airflow-guiding section. 
     
     
         2 . The radiating fin structure as claimed in  claim 1 , wherein the first ascending airflow-guiding section and a line extended from the second surface of the main body together define a first exterior angle therebetween. 
     
     
         3 . The radiating fin structure as claimed in  claim 2 , wherein the first exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         4 . The radiating fin structure as claimed in  claim 2 , wherein the first exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         5 . The radiating fin structure as claimed in  claim 1 , wherein the second ascending airflow-guiding section and a line extended from the second surface of the main body together define a second exterior angle therebetween. 
     
     
         6 . The radiating fin structure as claimed in  claim 5 , wherein the second exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         7 . The radiating fin structure as claimed in  claim 5 , wherein the second exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         8 . The radiating fin structure as claimed in  claim 1 , wherein the first ascending airflow-guiding section includes a plurality of first extending segments, and the first extending segments being integrally connected to one another to constitute the first ascending airflow-guiding section. 
     
     
         9 . The radiating fin structure as claimed in  claim 1 , wherein the second ascending airflow-guiding section includes a plurality of second extending segments, and the second extending segments being integrally connected to one another to constitute the second ascending airflow-guiding section. 
     
     
         10 . The radiating fin structure as claimed in  claim 1 , wherein the main body is further angularly upward extended from a first one of another pair of opposite ends to form at least a third ascending airflow-guiding section, such that a third exterior angle is contained between the third ascending airflow-guiding section and a line extended from the second surface of the main body. 
     
     
         11 . The radiating fin structure as claimed in  claim 10 , wherein the third exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         12 . The radiating fin structure as claimed in  claim 10 , wherein the third exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         13 . The radiating fin structure as claimed in  claim 10 , wherein the third ascending airflow-guiding section includes a plurality of third extending segments, and the third extending segments being integrally connected to one another to constitute the third ascending airflow-guiding section. 
     
     
         14 . The radiating fin structure as claimed in  claim 1 , wherein the main body is further angularly upward extended from a second one of another pair of opposite ends to form at least a fourth ascending airflow-guiding section, such that a fourth exterior angle is contained between the fourth ascending airflow-guiding section and a line extended from the second surface of the main body. 
     
     
         15 . The radiating fin structure as claimed in  claim 14 , wherein the fourth exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         16 . The radiating fin structure as claimed in  claim 14 , wherein the fourth exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         17 . The radiating fin structure as claimed in  claim 14 , wherein the fourth ascending airflow-guiding section includes a plurality of fourth extending segments, and the fourth extending segments being integrally connected to one another to constitute the fourth ascending airflow-guiding section. 
     
     
         18 . A thermal module comprising:
 at least one heat pipe having a heat-dissipation end and a heat-absorption end;   a plurality of radiating fins; each of the radiating fins including a main body having an upper and a lower side defining a first and a second surface, respectively; and the main body having at last one pair of opposite ends angularly upward extended from the first surface to form at least a first ascending airflow-guiding section and at least a second ascending airflow-guiding section; and the radiating fins being sequentially extended through by the heat-dissipation end of the at least one heat pipe, such that a plurality of ascending airflow passages are defined between the radiating fins; and   a base being provided with at least one receiving hole for receiving the heat-absorption end of the at least one heat pipe therein.   
     
     
         19 . The thermal module as claimed in  claim 18 , wherein the ascending airflow passages are respectively defined between any two vertically adjacent first ascending airflow-guiding sections and between any two vertically adjacent second ascending airflow-guiding sections of the radiating fins. 
     
     
         20 . The thermal module as claimed in  claim 18 , wherein the first ascending airflow-guiding section and a line extended from the second surface of the main body together define a first exterior angle therebetween. 
     
     
         21 . The thermal module as claimed in  claim 20 , wherein the first exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         22 . The thermal module as claimed in  claim 20 , wherein the first exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         23 . The thermal module as claimed in  claim 18 , wherein the second ascending airflow-guiding section and a line extended from the second surface of the main body together define a second exterior angle therebetween. 
     
     
         24 . The thermal module as claimed in  claim 23 , wherein the second exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         25 . The thermal module as claimed in  claim 23 , wherein the second exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         26 . The thermal module as claimed in  claim 18 , wherein the first ascending airflow-guiding section includes a plurality of first extending segments, and the first extending segments being integrally connected to one another to constitute the first ascending airflow-guiding section. 
     
     
         27 . The thermal module as claimed in  claim 18 , wherein the second ascending airflow-guiding section includes a plurality of second extending segments, and the second extending segments being integrally connected to one another to constitute the second ascending airflow-guiding section. 
     
     
         28 . The thermal module as claimed in  claim 18 , wherein the main body of each of the radiating fins is further angularly upward extended from a first one of another pair of opposite ends to form at least a third ascending airflow-guiding section, such that a third exterior angle is contained between the third ascending airflow-guiding section and a line extended from the second surface of the main body. 
     
     
         29 . The thermal module as claimed in  claim 28 , wherein the ascending airflow passages are further defined between any two vertically adjacent third ascending airflow-guiding sections. 
     
     
         30 . The thermal module as claimed in  claim 28 , wherein the third exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         31 . The thermal module as claimed in  claim 28 , wherein the third exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         32 . The thermal module as claimed in  claim 28 , wherein the third ascending airflow-guiding section includes a plurality of third extending segments, and the third extending segments being integrally connected to one another to constitute the third ascending airflow-guiding section. 
     
     
         33 . The thermal module as claimed in  claim 18 , wherein the main body of each of the radiating fins is further angularly upward extended from a second one of another pair of opposite ends to form at least a fourth ascending airflow-guiding section, such that a fourth exterior angle is contained between the fourth ascending airflow-guiding section and a line extended from the second surface of the main body. 
     
     
         34 . The thermal module as claimed in  claim 33 , wherein the ascending airflow passages are further defined between any two vertically adjacent fourth ascending airflow-guiding sections. 
     
     
         35 . The thermal module as claimed in  claim 33 , wherein the fourth exterior angle is ranged between 30 degrees and 80 degrees. 
     
     
         36 . The thermal module as claimed in  claim 33 , wherein the fourth exterior angle is ranged between 45 degrees and 60 degrees. 
     
     
         37 . The thermal module as claimed in  claim 33 , wherein the fourth ascending airflow-guiding section includes a plurality of fourth extending segments, and the fourth extending segments being integrally connected to one another to constitute the fourth ascending airflow-guiding section. 
     
     
         38 . The thermal module as claimed in  claim 18 , wherein the first and the second surface of each of the radiating fins respectively have a coating layer formed thereon. 
     
     
         39 . The thermal module as claimed in  claim 38 , wherein the coating layer is a radiation-enhancing coating for upgrading a cooling effect of the radiating fin.