Heat dissipation device

Abstract

A heat dissipation device includes a plurality of fins connected to each other. Each fin includes a plate and a pair of flanges extending from the plate. Each flange includes a first section extending perpendicularly away from the plate, a third section extending perpendicularly towards the plate and a second section interconnecting the first section and the third section. The first section is parallel to the third section and the second section is parallel to the plate. Three channels are defined by the first flange, the second flange and the plate for allowing airflow to flow through the fins.

1 . A heat dissipation device comprising:
 a plurality of fins, each of the fins comprising:
 a plate; and 
 a first flange comprising a first section extending from the plate along a direction away from the plate, a third section extending along a direction towards the plate, and a second section interconnecting the first section and the second section, the first section, the second section and the third section are non-coplanar with each other. 
   
     
     
         2 . The heat dissipation device of  claim 1 , wherein the first section is perpendicular to the plate. 
     
     
         3 . The heat dissipation device of  claim 2 , wherein the second section is parallel to the plate. 
     
     
         4 . The heat dissipation device of  claim 2 , wherein the third section is parallel to the first section. 
     
     
         5 . The heat dissipation device of  claim 1 , wherein the each of the fins further comprises a second flange extending from the plate, the second flange comprising a first section extending away from the plate, a third section extending towards the plate and a second section interconnecting the first section and the second section. 
     
     
         6 . The heat dissipation device of  claim 5 , wherein the first section of the second flange is parallel to the first section of the first flange, the second section of the second flange is parallel to the second section of the first flange, and the third section of the second flange is parallel to the third section of the first flange. 
     
     
         7 . The heat dissipation device of  claim 5 , wherein the first flange is extended from a top side of the plate, and the second flange is extended from a bottom side of the plate. 
     
     
         8 . The heat dissipation device of  claim 7 , wherein the first flange and the plate enclose a first channel, the second flange and the plate enclose a second channel, and the third sections of the first flange and the second flange and the plate cooperatively define a third channel. 
     
     
         9 . The heat dissipation device of  claim 8 , wherein the third channel is located between the first channel and the second channel. 
     
     
         10 . The heat dissipation device of  claim 8 , wherein the second channel has a length more than that of the first channel. 
     
     
         11 . The heat dissipation device of  claim 8 , wherein the second channel has a width more than that of the first channel. 
     
     
         12 . The heat dissipation device of  claim 8 , wherein the third sections of the first flange and the second flange are directly connected to the plate so that the first channel, the second channel and the third channel are separated from each other along the length thereof. 
     
     
         13 . The heat dissipation device of  claim 8 , wherein the third sections of the first flange, the second flange are spaced gaps from the plate so that the first channel, the second channel and the third channel communicate with each other along length thereof. 
     
     
         14 . The heat dissipation device of  claim 8 , wherein the first channel and the second channel are terminated within a periphery range of the plate so that airflow flowing out of the first channel and the second channel disturb with airflow flowing through the third channel at a place within the periphery range of the plate. 
     
     
         15 . The heat dissipation device of  claim 14 , wherein the first channel and the second channel have first openings flush with a lateral side of the plate, and second openings spaced intervals from an opposite lateral side of the plate. 
     
     
         16 . The heat dissipation device of  claim 1 , wherein each of the fins further comprises a second flange and a third flange, the second flange and the third flange are respectively located at a top side and a bottom side of the plate and the first flange is located at a middle of the plate. 
     
     
         17 . The heat dissipation device of  claim 16 , wherein each of the second flange and the third flange comprises a first section parallel to the first section of the first flange. 
     
     
         18 . The heat dissipation device of  claim 17 , wherein the first sections of the first flange and the second flange and the plate cooperatively define a first channel, the first section of the third flange and the third section of the first flange and the plate cooperatively define a second channel, and the first flange and the plate cooperatively enclose a third channel. 
     
     
         19 . The heat dissipation device of  claim 18 , wherein first channel, the second channel and the third channel are separated from each other along the length thereof. 
     
     
         20 . The heat dissipation device of  claim 18 , wherein the third channel is located between the first channel and the second channel.