Heat radiator

Abstract

A heat radiator includes a water tank containing cooling liquid. A first radiating member has a top plate secured at top edges of the water tank. Multiple first fins are formed beneath the top plate and immersed in the cooling liquid. A heat insulating pad is adhered on the top plate. At least one semiconductor refrigerating component is mounted on the top plate and has a hot surface abutting the top plate and a cold surface exposed from the heat insulating pad. A second radiating member is positioned on the first radiating member and has a bottom plate with an area over the semiconductor refrigerating component. Multiple second fins are formed on the bottom plate. A fan is mounted on the second fins of the second radiating member.

1 . A heat radiator comprising: 
 a water tank having a hollow body, and cooling liquid contained in the hollow body;    a first radiating member having a top plate secured at top edges of the water tank, multiple first fins formed beneath the top plate and immersed in the cooling liquid, a heat insulating pad adhered on the top plate, and at least one semiconductor refrigerating component mounted on the top plate and having a hot surface abutting the top plate and a cold surface exposed from the heat insulating pad;    a second radiating member positioned on the first radiating member and having a bottom plate with an area over the at least one semiconductor refrigerating component, and multiple second fins formed on the bottom plate; and    a fan mounted on the second fins of the second radiating member.    
   
   
       2 . The heat radiator as claimed in  claim 1  further comprising a cover detachably mounted on the water tank to envelop the second radiating member and the fan, and louvers defined at top and side surfaces of the cover.  
   
   
       3 . The heat radiator as claimed in  claim 2 , wherein the cover has a handle formed thereon.  
   
   
       4 . The heat radiator as claimed in  claim 1 , wherein the first radiating member further has a shield formed beneath the plate and outside the first fins with a length larger than the first fins.  
   
   
       5 . The heat radiator as claimed in  claim 2 , wherein the water tank has multiple barbs formed at the top edges of the hollow body, and the cover has multiple hooks formed at bottom edges of the cover and respectively attached to the barbs.