Electrically insulated heat sink with high thermal conductivity

Abstract

This invention relates to an electrically insulated heat sink with high thermal conductivity, which is made of ceramic material and is integrally formed with a plurality of post-shaped heat dissipating bodies on the upper end surface. A plurality of heat pipes charged with working liquid medium therein are disposed within the interior of the heat sink. According to this structure, the heat sink has good insulation, heat absorption and heat dissipation effects.

1 . An electrically insulated heat sink with high thermal conductivity, wherein the heat sink is made of ceramic material and is integrally formed with a plurality of post-shaped heat dissipating bodies disposed on the upper end surface, and a plurality of heat pipes charged with working liquid medium therein which are disposed within the interior of the heat sink. 
   
   
       2 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 1 , wherein the heat sink is coated on the surface with a layer of coating having high thermal conductivity. 
   
   
       3 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 2 , wherein the layer of coating having high thermal conductivity is carbon nanomaterial. 
   
   
       4 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 2 , wherein the layer of coating having high thermal conductivity is a metal coating having high thermal conductivity. 
   
   
       5 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 1 , wherein the post-shaped heat dissipating bodies of the base body in the outmost periphery are made higher than the other post-shaped heat dissipating bodies. 
   
   
       6 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 5 , wherein the heat sink is coated on the surface with a layer of coating having high thermal conductivity. 
   
   
       7 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 6 , wherein the layer of coating having high thermal conductivity is carbon nanomaterial. 
   
   
       8 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 6 , wherein the layer of coating having high thermal conductivity is a metal coating having high thermal conductivity. 
   
   
       9 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 1 , wherein the heat sink is formed by the conglomerate of a plurality of ceramic granules. 
   
   
       10 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 9 , wherein each ceramic granule has a plurality of pores on its surface. 
   
   
       11 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 9 , wherein the diameters of the ceramic granules are different. 
   
   
       12 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 9 , wherein the diameters of the ceramic granules are the same. 
   
   
       13 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 10 , wherein the diameters of the ceramic granules are different. 
   
   
       14 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 10 , wherein the diameters of the ceramic granules are the same. 
   
   
       15 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 9 , wherein the heat sink is coated on the surface with a layer of coating having high thermal conductivity. 
   
   
       16 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 15 , wherein the layer of coating having high thermal conductivity is carbon nanomaterial. 
   
   
       17 . An electrically insulated heat sink with high thermal conductivity in accordance with  claim 15 , wherein the layer of coating having high thermal conductivity is a metal coating having high thermal conductivity.