Heat pipe assembly with bonded fins on the baseplate hybrid

Abstract

A hybrid heat pipe assembly includes a baseplate dimensioned to be placed in surface contact with a device. The baseplate is configured to extract heat from the device. A plurality of fins is bonded to the baseplate. The fins are configured to transfer a first portion of the extracted heat from the baseplate to air surrounding the fins. A complex heat pipe extends from the baseplate and has an end positioned within the baseplate. The complex heat pipe is configured to receive and transfer a second portion of the extracted heat transferred from the baseplate. The complex heat pipe is configured to transfer the second portion of heat to a heat pipe fin stack to which.

Having described the invention, the following is claimed: 
     
         1 . A hybrid heat pipe assembly comprising:
 a baseplate dimensioned to be placed in surface contact with a device, the baseplate being configured to extract heat from the device;   a plurality of fins bonded to the baseplate, the fins being configured to transfer a first portion of the extracted heat from the baseplate to air surrounding the fins;   a complex heat pipe extending from the baseplate and having an end positioned within the baseplate, the complex heat pipe being configured to receive and transfer a second portion of the extracted heat transferred from the baseplate; and   a heat pipe fin stack to which the complex heat pipe is configured to transfer the second portion of heat, the heat pipe fin stack being joined to the complex heat pipe and configured to transfer the second portion of the extracted heat received from the complex heat pipe to air surrounding the stack.   
     
     
         2 . The assembly of  claim 1 , wherein the complex heat pipe extends from the baseplate and through the fins and the heat pipe fin stack. 
     
     
         3 . The assembly of  claim 1 , wherein the fins are bonded to the baseplate in a plurality of groups, and
 wherein the groups are separated from each other by the complex heat pipe.   
     
     
         4 . The assembly of  claim 3 , wherein the complex heat pipe extends from the baseplate and through two of the fin groups and the heat pipe fin stack. 
     
     
         5 . The assembly of  claim 1 , wherein the heat pipe fin stack is separated from the baseplate by the fins. 
     
     
         6 . The assembly of  claim 1 , wherein the fins are bonded to the baseplate in a plurality of groups,
 wherein the complex heat pipe is one of a plurality of complex heat pipes, and   wherein each of the complex heat pipes separates one of the fin groups from another one of the fin groups.   
     
     
         7 . The assembly of  claim 6 , wherein each of the complex heat pipes extends through the heat pipe fin stack. 
     
     
         8 . The assembly of  claim 1 , wherein the heat pipe fin stack comprises a heat pipe protective fin into which the complex heat pipe extends, and
 wherein the heat pipe protective fin is positioned on an opposite side of the heat pipe fin stack from the fins.   
     
     
         9 . The assembly of  claim 8 , wherein the heat pipe protective fin is positioned adjacent to one end of the complex heat pipe. 
     
     
         10 . The assembly of  claim 9 , wherein another end of the complex heat pipe is embedded in the baseplate. 
     
     
         11 . The assembly of  claim 1 , wherein the fins are mounted to an opposite side of the plate from a side of the baseplate in contact with the device. 
     
     
         12 . The assembly of  claim 1 , wherein the complex heat pipe is embedded in the baseplate. 
     
     
         13 . The assembly of  claim 12 , wherein the complex heat pipe extends at an angle from the baseplate to an end of the complex heat pipe. 
     
     
         14 . A hybrid heat pipe assembly comprising:
 a baseplate dimensioned to be placed in surface contact with a device, the baseplate being configured to extract heat from the device;   a plurality of fins bonded to the baseplate, the fins being configured to transfer a first portion of the extracted heat from the baseplate to air surrounding the fins;   a complex heat pipe apparatus positioned within the baseplate, the apparatus comprising a chamber positioned within the baseplate and a plurality of complex heat pipes secured within the chamber, the complex heat pipes extending from the baseplate and having ends positioned within the baseplate, the chamber being configured to receive a second portion of the extracted heat transferred from the baseplate and transfer the second heat portion to the complex heat pipes, the complex heat pipes being configured to receive and transfer the second heat portion from the chamber; and   a heat pipe fin stack to which the complex heat pipes are configured to transfer the second portion of heat, the heat pipe fin stack being joined to the complex heat pipes and configured to transfer the second portion of the extracted heat received from the complex heat pipes to air surrounding the stack.   
     
     
         15 . The assembly of  claim 14 , wherein the complex heat pipes extend from the chamber through the fins and the heat pipe fin stack. 
     
     
         16 . The assembly of  claim 14 , wherein the fins are bonded to the baseplate in a plurality of groups, and
 wherein the groups are separated from each other by the complex heat pipes.   
     
     
         17 . The assembly of  claim 16 , wherein the complex heat pipes extend from the chamber through two of the fin groups and the heat pipe fin stack. 
     
     
         18 . The assembly of  claim 14 , wherein the chamber is mounted horizontally in the baseplate. 
     
     
         19 . The assembly of  claim 14 , wherein the chamber is embedded in the baseplate. 
     
     
         20 . The assembly of  claim 14 , wherein the chamber is positioned in a baseplate channel comprising walls defining the baseplate channel, the chamber being secured to the walls.