Heat sink structure

Abstract

Provided is a heat sink structure which can reliably prevent blocking and narrowing of an inner space of the planar heat pipe thus having excellent heat transmission characteristics, and which can make cooling of a plurality of heat generating elements installed in a narrowed inner space uniform with a simple configuration. A heat sink structure has a planar heat pipe configured to be placed on a plurality of heat generating elements thus being thermally coupled to the plurality of heat generating elements; and a tubular heat pipe thermally coupled to a heat radiating portion of the planar heat pipe at a heat receiving portion of the tubular heat pipe.

What is claimed is: 
     
         1 . A heat sink structure comprising:
 a planar heat pipe configured to be placed on a plurality of heat generating elements thus being thermally coupled to the plurality of heat generating elements; and   a tubular heat pipe thermally coupled to a heat radiating portion of the planar heat pipe at a heat receiving portion of the tubular heat pipe.   
     
     
         2 . The heat sink structure according to  claim 1 , wherein a heat exchange unit is provided on a heat radiating portion of the tubular heat pipe. 
     
     
         3 . The heat sink structure according to  claim 2 , wherein the heat exchange unit includes a heat radiating fin. 
     
     
         4 . The heat sink structure according to  claim 2 , wherein at least one of the heat exchange unit and the heat radiating portion of the tubular heat pipe is cooled by cooling air from a blower fan. 
     
     
         5 . The heat sink structure according to any one of  claims 1 , wherein a biasing member is provided on the planar heat pipe, and the biasing member is fixed to a support member of the heat generating element.