US2013118725A1PendingUtilityA1

Heat Sink and Fins Thereof

43
Assignee: CHEN SHYH-MINGPriority: Nov 10, 2011Filed: Nov 10, 2011Published: May 16, 2013
Est. expiryNov 10, 2031(~5.3 yrs left)· nominal 20-yr term from priority
Inventors:Shyh-Ming Chen
F21V 29/83F21Y 2103/33F21K 9/23F21Y 2115/10F28F 1/20F21V 29/773
43
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Claims

Abstract

The heat sink of the invention includes a cylinder and fins fastened thereto. A hollow in the cylinder is for receiving a heat source. Each the fin includes two parallel wings and a connection plate therebetween. A space is defined by the two wings and the connection plate for air flow.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A heat dissipation fin comprising:
 two parallel wings; and   a connection plate between the two wings;   wherein a space is defined by the two wings and the connection plate.   
     
     
         2 . The heat dissipation fin of  claim 1 , wherein the connection plate is formed with a through hole. 
     
     
         3 . The heat dissipation fin of  claim 1 , wherein at least one of the wings is formed with a passing hole. 
     
     
         4 . The heat dissipation fin of  claim 1 , wherein tops of the wings are separately formed with connecting portions for fastening to a lamp head. 
     
     
         5 . The heat dissipation fin of  claim 1 , wherein bottoms of the wings are separately formed with engaging portions for fastening to a frame. 
     
     
         6 . The heat dissipation fin of  claim 1 , wherein the connection plate has an open area. 
     
     
         7 . The heat dissipation fin of  claim 1 , wherein the connection plate is a plane in shape. 
     
     
         8 . A heat sink comprising:
 a cylinder; and   fins, fastened onto an outer surface of the cylinder, each the fin comprising:
 two parallel wings; and 
 a connection plate between the two wings; 
 wherein a space is defined by the two wings and the connection plate. 
   
     
     
         9 . The heat sink of  claim 8 , wherein the connection plate is formed with a through hole. 
     
     
         10 . The heat sink of  claim 8 , wherein at least one of the wings is formed with a passing hole. 
     
     
         11 . The heat sink of  claim 8 , wherein tops of the wings are separately formed with connecting portions for fastening to a lamp head. 
     
     
         12 . The heat sink of  claim 8 , wherein bottoms of the wings are separately formed with engaging portions for fastening to a frame. 
     
     
         13 . The heat sink of  claim 8 , wherein the connection plate has an open area. 
     
     
         14 . The heat sink of  claim 8 , wherein the cylinder is formed with grooves to separately engage with the fins. 
     
     
         15 . The heat sink of  claim 14 , wherein inner edges of the wings are separately engaged in the grooves. 
     
     
         16 . The heat sink of  claim 14 , wherein the cylinder is formed with guide slots, and each the guide slot is between every two adjacent grooves. 
     
     
         17 . The heat sink of  claim 8 , wherein the connection plate is a plane in shape. 
     
     
         18 . The heat sink of  claim 8 , further comprising a cover on the cylinder. 
     
     
         19 . The heat sink of  claim 18 , wherein the cover is a slice made of plastic or metal.

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