Air flow guiding structure

Abstract

An air flow guiding structure includes a plurality of straight radiating fins being parallelly spaced to define an air flow passage between any two adjacent ones of the straight radiating fins; a plurality of first oblique sections extended from first ends of at least some of the straight radiating fins, such that a first air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the first oblique sections; and a plurality of second oblique sections extended from opposite second ends of at least some of the straight radiating fins, such that a second air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the second oblique sections. With these arrangements, air flows can be quickly guided into and out of the air flow passages to improve flow field and achieve best heat dissipation effect.

1 . An air flow guiding structure, comprising a plurality of straight radiating fins respectively having a first end and an opposite second end and being parallelly spaced to define an air flow passage between any two adjacent ones of the straight radiating fins; and a plurality of first oblique sections extended from the first ends of at least some of the straight radiating fins, such that a first air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the first oblique sections. 
     
     
         2 . The air flow guiding structure as claimed in  claim 1 , further comprising a plurality of second oblique sections extended from the second ends of at least some of the straight radiating fins, such that a second air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the second oblique sections. 
     
     
         3 . The air flow guiding structure as claimed in  claim 1 , further comprising a plurality of third oblique sections extended from the first ends of at least some of the straight radiating fins, such that a third air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the third oblique sections. 
     
     
         4 . The air flow guiding structure as claimed in  claim 3 , wherein the third oblique sections are located to one lateral side of the first oblique sections. 
     
     
         5 . The air flow guiding structure as claimed in  claim 2 , further comprising a plurality of fourth oblique sections extended from the second ends of at least some of the straight radiating fins, such that a fourth air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the fourth oblique sections. 
     
     
         6 . The air flow guiding structure as claimed in  claim 5 , wherein the fourth oblique sections are located to one lateral side of the second oblique sections. 
     
     
         7 . The air flow guiding structure as claimed in  claim 1 , wherein a first angle is contained between the straight radiating fin and the first oblique section extended therefrom, and the first angle being larger than 90° and smaller than 180°. 
     
     
         8 . The air flow guiding structure as claimed in  claim 2 , wherein a second angle is contained between the straight radiating fin and the second oblique section extended therefrom, and the second angle being larger than 90° and smaller than 180°. 
     
     
         9 . The air flow guiding structure as claimed in  claim 3 , wherein a third angle is contained between the straight radiating fin and the third oblique section extended therefrom, and the third angle being larger than 90° and smaller than 180°. 
     
     
         10 . The air flow guiding structure as claimed in  claim 5 , wherein a fourth angle is contained between the straight radiating fin and the fourth oblique section extended therefrom, and the fourth angle being larger than 90° and smaller than 180°. 
     
     
         11 . The air flow guiding structure as claimed in  claim 1 , wherein the air flow guiding structure is located adjacent to a fan with the second ends of the straight radiating fins facing toward the fan; whereby when the fan operates, air flows are forced through the air flow passages to flow out of the air flow guiding structure via the first air flow guiding passages. 
     
     
         12 . The air flow guiding structure as claimed in  claim 2 , wherein the air flow guiding structure is located adjacent to a fan with the second oblique sections facing toward the fan; whereby when the fan operates, air flows are guided by the second air flow guiding passages to flow into the air flow passages and then out of the first air flow guiding passages. 
     
     
         13 . The air flow guiding structure as claimed in  claim 1 , wherein the air flow guiding structure is mounted in a chassis; the chassis being provided with a plurality of air outlets, and the air flow guiding structure being mounted in the chassis with the first air flow guiding passages facing toward and located adjacent to the air outlets of the chassis.