Interconnected heat pipe assembly and method for manufacturing the same

Abstract

The present invention relates to an interconnected heat pipe assembly and a method for manufacturing the same. The interconnected heat pipe assembly includes a first heat pipe and a second heat pipe. The first heat pipe comprises a first pipe, a first wick structure and a first working fluid. The first pipe has a hollow chamber and an opening. The first wick structure is arranged on inner walls of the hollow chamber. The first working fluid is filled in the hollow chamber. The second heat pipe is disposed through the opening in the first pipe with a portion of the second heat pipe being received in the hollow chamber. An air channel is formed between outer walls of the second heat pipe and inner walls of the first pipe. The present invention can conduct heat to a long distance and has an increased heat-conducting efficiency.

1 . An interconnected heat pipe assembly, including:
 a first heat pipe comprising a first pipe, a first wick structure and a first working fluid, the first pipe having a hollow chamber, the first wick structure being arranged on at least one inner wall of the hollow chamber, the first working fluid being filled in the hollow chamber; and   a second heat pipe comprising a second pipe, a second wick structure and a second working fluid, a portion of the second heat pipe being received and sealed in the hollow chamber of the first pipe, an air channel being formed between an outer wall of the second heat pipe and an inner wall of the first pipe.   
     
     
         2 . The interconnected heat pipe assembly according to  claim 1 , wherein the first pipe is provided with an opening, one end of the first pipe near the opening is formed with a first tapered section, the other end of the first pipe away from the opening is formed with a first degassing port, the first tapered section and a portion of the second heat pipe are soldered together at the opening. 
     
     
         3 . The interconnected heat pipe assembly according to  claim 2 , wherein the other portion of the second heat pipe penetrates the opening to form a second degassing port. 
     
     
         4 . The interconnected heat pipe assembly according to  claim 3 , wherein the first heat pipe and the second heat pipe are pressed to be flat in such a manner that vertical inner walls of the first pipe are brought into tight contact with vertical outer walls of the second heat pipe, the air channel is formed between lateral inner walls of the first pipe and lateral outer walls of the second heat pipe. 
     
     
         5 . The interconnected heat pipe assembly according to  claim 4 , further comprising a third heat pipe connected to the second heat pipe and away from the first heat pipe. 
     
     
         6 . The interconnected heat pipe assembly according to  claim 5 , wherein the third heat pipe comprises a third pipe and a third wick structure arranged on an inner wall of the third pipe, the third pipe has a chamber and a pipe hole, one end of the second heat pipe away from the first heat pipe is disposed through the pipe hole into the third pipe with the other portion of the second heat pipe being received and sealed in the chamber, an air channel is formed between outer walls of the other portion of the second heat pipe and inner walls of the third pipe. 
     
     
         7 . The interconnected heat pipe assembly according to  claim 6 , wherein one end of the third pipe near the pipe hole is formed with a third tapered section, the other end of the third pipe away from the pipe hole is formed with a third degassing port, the third tapered section and the second heat pipe are soldered together at the pipe hole. 
     
     
         8 . The interconnected heat pipe assembly according to  claim 4 , further comprising a third heat pipe connected to the first heat pipe and away from the second heat pipe. 
     
     
         9 . The interconnected heat pipe assembly according to  claim 8 , wherein one end of the first pipe away from the opening is formed with a second opening, the third heat pipe comprises a third pipe and a third wick structure arranged on an inner wall of the third pipe, the third heat pipe is disposed through the second opening into the first pipe with a portion of the third heat pipe being received and sealed in the hollow chamber, another air channel is formed between outer walls of the third heat pipe and inner walls of the first pipe. 
     
     
         10 . The interconnected heat pipe assembly according to  claim 9 , wherein one end of the first pipe near the second opening is formed with a tapered section, a middle portion of the first pipe is provided with a degassing tube, the tapered section and the third heat pipe are soldered together at the second opening, the other portion of the third heat pipe penetrates the second opening to form a third degassing port. 
     
     
         11 . A method for manufacturing an interconnected heat pipe assembly, including steps of:
 a) providing a first pipe, both ends of the first pipe being formed into a first degassing port and an opening;   b) providing a first wick structure, arranging the first wick structure on an inner wall of the first pipe;   c) providing a second heat pipe, disposing the second heat pipe through the opening of the first pipe with a portion of the second heat pipe being received in the first pipe;   d) providing a soldering apparatus, soldering a connecting portion between the opening of the first pipe and the second heat pipe by the soldering apparatus;   e) providing a first working fluid, filling the first working fluid into the first pipe through the first degassing port; and   f) providing a degassing and soldering apparatus, degassing the first pipe and then sealing the first degassing port to form a first heat pipe by the degassing and soldering apparatus.   
     
     
         12 . The method according to  claim 11 , further including a step of providing a pressing tool, and pressing at least one portion of the first heat pipe and the second heat pipe to be flat by the pressing tool. 
     
     
         13 . The method according to  claim 11 , further including steps of:
 g) providing a third pipe, both ends of the third pipe being formed with a third degassing port and a pipe hole;   h) providing a third wick structure, arranging the third wick structure on an inner wall of the third pipe;   j) narrowing the third degassing port, disposing a portion of the second heat pipe away from the first pipe through the pipe hole into the third pipe;   j) soldering a connecting portion between the third pipe and the second heat pipe by the soldering apparatus;   k) providing a third working fluid, filling the third working fluid into the third pipe; and     1 ) degassing the third pipe via the third degassing port by the degassing and soldering apparatus, sealing the third pipe by the soldering apparatus to form a third heat pipe.   
     
     
         14 . The method according to  claim 13 , further including a step of providing a pressing tool, and pressing at least one portion of the first heat pipe, the second heat pipe and the third heat pipe to be flat by the pressing tool. 
     
     
         15 . A method for manufacturing an interconnected heat pipe assembly, including steps of:
 a) providing a first pipe, both ends of the first pipe being formed into an opening and a second opening, the first pipe being provided with a degassing tube;   b) providing a first wick structure, arranging the first wick structure on an inner wall of the first pipe;   c) providing a second heat pipe, disposing the second heat pipe through the opening of the first pipe with a portion of the second heat pipe being received in the first pipe and the other portion of the second heat pipe penetrating the opening to form a second degassing port;   d) providing a third heat pipe, disposing the third heat pipe through the second opening into the first pipe with a portion of the third heat pipe being received in the first pipe and the other portion of the third heat pipe penetrating the second opening to form a third degassing port;   e) providing a soldering apparatus, soldering a connecting portion between the opening of the first pipe and the second heat pipe as well as a connecting portion between the second opening of the first pipe and the third heat pipe by the soldering apparatus;   f) providing a working fluid, filling the working fluid into the first pipe through the degassing tube, filling the working fluid in the second pipe through the second degassing port, filling the working fluid in the third pipe through the third degassing port; and   g) providing a degassing and soldering apparatus, degassing and sealing the first pipe, the second pipe and third pipe to form a first heat pipe, a second heat pipe and a third heat pipe respectively by the degassing and soldering apparatus.   
     
     
         16 . The method according to  claim 15 , further including a step of: providing a pressing tool, and pressing at least one the first heat pipe, the second heat pipe and the third heat pipe to be flat by the pressing tool.