Heat dissipating apparatus with vortex generator

Abstract

A heat dissipating apparatus with a vortex generator includes a heat conducting base, a heat pipe, and a plurality of heat dissipating fins. Each heat dissipating fin has a vortex generator installed thereon and disposed adjacent to a side of the heat pipe. The vortex generator has two guiding oblique surfaces protruding from a surface of the heat dissipating fin. The two guiding oblique surfaces are disposed with an included angle there between. A through hole is formed at a position opposite to a side of the heat dissipating fin, such that the vortex generator of each heat dissipating fin induces a stack effect at corresponding upper and lower parts of the heat dissipating fin to improve the heat dissipating efficiency.

1 . A heat dissipating apparatus with a vortex generator, comprising:
 a heat conducting base ( 1 );   a heat pipe ( 2 ), coupled to the heat conducting base ( 1 ); and   a plurality of heat dissipating fins ( 3 ), sequentially penetrated by the heat pipe ( 2 );   wherein each heat dissipating fin ( 3 ) has a vortex generator ( 4 ) installed thereon and disposed proximate to a side of the heat pipe ( 2 ), the vortex generator ( 4 ) has two guiding oblique surfaces ( 40 ), ( 41 ) arranged with an included angle therebetween, and a through hole ( 32 ) is formed at a position opposite to a side of the heat dissipating fin ( 3 ).   
     
     
         2 . The heat dissipating apparatus with a vortex generator of  claim 1 , wherein the heat conducting base ( 1 ) is substantially a plate. 
     
     
         3 . The heat dissipating apparatus with a vortex generator of  claim 1 , wherein each of the heat dissipating fins ( 3 ) has a corresponding penetrating hole ( 30 ) for allowing the heat pipe ( 2 ) to pass through. 
     
     
         4 . The heat dissipating apparatus with a vortex generator of  claim 3 , wherein each penetrating hole ( 30 ) has a circular flange ( 31 ) protruding from the periphery of the penetrating hole ( 30 ) for keeping a close contact with the heat pipe ( 2 ). 
     
     
         5 . The heat dissipating apparatus with a vortex generator of  claim 1 , wherein there is a plurality of heat pipes ( 2 ), and each heat pipe ( 2 ) has a vortex generator ( 4 ) installed on its one side. 
     
     
         6 . The heat dissipating apparatus with a vortex generator of  claim 1 , wherein the two guiding oblique surfaces ( 40 ), ( 41 ) of each vortex generator ( 4 ) have top edges ( 400 ), ( 410 ) ascendingly protruding from the two guiding oblique surfaces ( 40 ), ( 41 ) respectively, the top edges ( 400 ), ( 410 ) of the two guiding oblique surfaces ( 40 ), ( 41 ) extend downwardly to form included angle lines (L 1 ) respectively that are intersected with each other. 
     
     
         7 . The heat dissipating apparatus with a vortex generator of  claim 6 , wherein the included angle formed by intersecting the two included angle lines (L 1 ) is equal to 60°. 
     
     
         8 . The heat dissipating apparatus with a vortex generator of  claim 1 , wherein the two guiding oblique surfaces ( 40 ), ( 41 ) of each vortex generator ( 4 ) have an aspect ratio of 2:1. 
     
     
         9 . The heat dissipating apparatus with a vortex generator of  claim 1 , wherein each heat dissipating fin ( 3 ) includes a plurality of auxiliary vortex generators ( 5 ) arranged transversally on the heat dissipating fin ( 3 ). 
     
     
         10 . The heat dissipating apparatus with a vortex generator of  claim 9 , wherein each auxiliary vortex generator ( 5 ) has two guiding oblique surfaces ( 50 ) protruding from a surface of the heat dissipating fin ( 3 ), the two guiding oblique surfaces ( 50 ) protrude in a tapered form, a through hole ( 51 ) is formed at a corresponding position penetrating through the heat dissipating fin ( 3 ). 
     
     
         11 . The heat dissipating apparatus with a vortex generator of  claim 10 , wherein the two guiding oblique surfaces ( 50 ) of each auxiliary vortex generator ( 5 ) have an included angle of 30°. 
     
     
         12 . The heat dissipating apparatus with a vortex generator of  claim 10 , wherein the two guiding oblique surfaces ( 50 ) of each auxiliary vortex generator ( 5 ) have an aspect ratio of 2:1. 
     
     
         13 . The heat dissipating apparatus with a vortex generator of  claim 10 , wherein the through hole ( 51 ) of each auxiliary vortex generator ( 5 ) is oriented upwardly and obliquely. 
     
     
         14 . The heat dissipating apparatus with a vortex generator of  claim 9 , wherein the auxiliary vortex generators ( 5 ) are provided in pairs. 
     
     
         15 . The heat dissipating apparatus with a vortex generator of  claim 9 , wherein the two guiding oblique surfaces ( 50 ) of the auxiliary vortex generator ( 5 ) protrude to be intersected to form a ridge (L 2 ), the ridges (L 2 ) of adjacent paired auxiliary vortex generators ( 5 ) form an included angle of 60°. 
     
     
         16 . The heat dissipating apparatus with a vortex generator of  claim 1 , wherein each heat dissipating fin ( 3 ) further includes a ventilation hole ( 33 ) formed at a position proximate to each vortex generators ( 4 ), and a tapered circular enclosed portion ( 34 ) protrudes upwardly from the periphery of the ventilation hole ( 33 ). 
     
     
         17 . The heat dissipating apparatus with a vortex generator of  claim 16 , wherein the circular enclosed portion ( 34 ) is disposed between the two guiding oblique surfaces ( 40 ), ( 41 ).