Heat dissipation device

Abstract

A heat dissipation device for an electronic component includes a heat sink thermally contacting the electronic component and a label member fixed on the heat sink for providing information. The heat sink includes a base and a plurality of fins extending upwardly from a top surface of the base. Two engaging portions protrude from two spaced fins, towards each other. Two flanges angle outwardly from two opposite lateral sides of the label member and clasp the two engaging portions of the heat sink, respectively.

1 . A heat dissipation device comprising:
 a heat sink comprising a base and a plurality of fins extending upwardly from a top surface of the base, and two engaging portions protruding from two fins, respectively, and towards each other; and   an elongated label member fixed on the fins of the heat sink, two flanges angling outwardly from two opposite lateral sides of the label member and clasping the two engaging portions of the heat sink, respectively.   
   
   
       2 . The heat dissipation device as claimed in  claim 1 , wherein the fins comprise a plurality of first fins divided into two parts located at two opposite lateral sides of the base, respectively, and a plurality of second fins located at a center of the base and between the two parts of the first fins. 
   
   
       3 . The heat dissipation device as claimed in  claim 2 , wherein the two flanges protrude inwardly and horizontally from two inmost first fins located adjacent to the second fins, respectively. 
   
   
       4 . The heat dissipation device as claimed in  claim 3 , wherein each of the two flanges protrudes from a top end of each of the two inmost first fins. 
   
   
       5 . The heat dissipation device as claimed in  claim 2 , wherein height of the second fins gradually decreases from a middle second fin to two outmost second fins, whereby top ends of the second fins cooperatively form a curved surface. 
   
   
       6 . The heat dissipation device as claimed in  claim 5 , wherein the label member spans the top ends of the second fins. 
   
   
       7 . The heat dissipation device as claimed in  claim 6 , wherein a bottom surface of the label member is received on the top ends of the second fins. 
   
   
       8 . The heat dissipation device as claimed in  claim 1 , wherein a central portion of the label member arches upwardly, such that the label member presents a curved configuration. 
   
   
       9 . The heat dissipation device as claimed in  claim 1 , wherein the base of the heat sink is rectangular, and the fins of the heat sink extend along a width of the base. 
   
   
       10 . The heat dissipation device as claimed in  claim 1 , wherein characters and images are formed on the label member by stamping, etching or carving. 
   
   
       11 . The heat dissipation device as claimed in  claim 1 , wherein each of the engaging portions has a top inclined guide face and a bottom engaging face, and the flanges of the label member clasp the bottom engaging faces of the engaging portions. 
   
   
       12 . A heat dissipation device comprising:
 a heat sink comprising a base and a plurality of fins extending upwardly from a top surface of the base, the fins comprising two spaced first fins and a plurality of second fins located between the two first fins, two elongated engaging portions extending from the two first fins, respectively, and towards each other; and   an elongated label member disposed on the second fins of the heat sink, the two engaging portions pressing two opposite lateral ends of the label member downward, respectively.   
   
   
       13 . The heat dissipation device as claimed in  claim 12 , wherein each of the two engaging portions protrudes from a top end of each of the two first fins. 
   
   
       14 . The heat dissipation device as claimed in  claim 12 , wherein each of the engaging portions has an engaging face parallel to the base, the engaging faces of the engaging portions pressing the two lateral ends of the label member downward, respectively. 
   
   
       15 . The heat dissipation device as claimed in  claim 12 , wherein the label member spans top ends of the second fins. 
   
   
       16 . The heat dissipation device as claimed in  claim 12 , wherein top ends of the second fins cooperatively form a curved surface. 
   
   
       17 . The heat dissipation device as claimed in  claim 12 , wherein the label member further comprises two flanges angling upwardly from two opposite lateral sides thereof to clasp the two engaging portions, respectively. 
   
   
       18 . The heat dissipation device as claimed in  claim 14 , wherein each of the engaging portions has a top inclined guide face above the engaging face, and the engaging face is located at a bottom of the each of the engaging portions.