Unlock instant, AI-driven research and patent intelligence for your innovation.
Heat pipe and manufacturing method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A heat pipe and pipe body technology, applied in the field of heat pipes and their manufacturing, can solve the problems of easy cracks in the sealing of heat pipes, shortened service life of heat pipes, leakage of working medium of heat pipes, etc., and achieves the effects of low cost, long service life and extended service life.
Inactive Publication Date: 2012-07-04
ZHEJIANG HAILIANG ENERGY MANAGEMENT
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Existing heat pipes usually use copper with high thermal conductivity as the shell. When producing heat pipes, the two ports of the copper pipe are usually punched into a tapered shape with a punch, and then welded by argon arc welding to form the head of the heat pipe. , the heat pipe head formed by this welding is bound to have a weld seam, which will cause the working medium in the heat pipe to leak and shorten the service life of the heat pipe
Or flatten the end of the copper pipe to form a heat pipe seal. This kind of flattened heat pipe seal is prone to cracks, which will also cause leakage of the working medium in the heat pipe and shorten the service life of the heat pipe.
In addition, the process of stamping the two ports of the copper tube into a tapered shape is complicated and the cost is high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] refer to figure 1 , 2
[0021] The heat pipe includes a sealed pipe body filled with working medium, and both ends of the pipe body are dome-shaped heads;
[0022] The sealing heads are integrated with the pipe body, one of the sealing heads is provided with a through hole, and a plug is inserted in the through hole, and the plug is integrated with the sealing head by fusion welding.
[0023] The technical idea of the present invention is: by heating the pipe body to the melting point, forming a head integrated with the pipe body by spinning the end of the pipe body, there is no gap between the head and the pipe body; melting the plug until it is integrated with the head, There is no gap between the plug and the head, so as to prevent the leakage of the working medium and prolong the service life of the heat pipe.
[0024] The invention has the advantages of simple manufacture, seamless head, uniform wall thickness, uniform heat conduction, long service life of the...
Embodiment 2
[0026] The manufacturing method of described heat pipe, comprises the following steps:
[0027] 1), manufacture hollow pipe body;
[0028] 2) Clamp the pipe body in the fixture, drive the pipe body clamped in the fixture to rotate, and heat one port of the pipe body, press the head block against the pipe body port, and push the outer edge of the end toward the pipe body Extrude in the direction of the central axis to form a dome-shaped head;
[0029] 3), turn over the pipe body, repeat step 2) to complete the head of the other port of the pipe body;
[0030] 4), a through hole is opened on a head of the pipe body, and the working medium is injected into the pipe body through the through hole;
[0031] 5) Insert the plug into the through hole, and there is a gap between the plug and the through hole;
[0032] 6) Heat the pipe body until the air in the pipe body is discharged through the gap between the plug and the through hole, and stop heating;
[0033] 7) Knock the plug ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention provides a heat pipe which comprises a sealed pipe body full of working medium, wherein both ends of the pipe body are dome-shaped sealing heads; the sealing heads and the pipe body form a whole; a through hole is arranged in one of the sealing heads; a plug is inserted on the through hole; and the plug and the sealing head form a whole through high-temperature melting. A manufacturing method of the heat pipe comprises the following steps of: manufacturing a hollow pipe body; manufacturing the sealing heads at two ends of the pipe body; arranging the through hole in one of the sealing heads, and injecting the working medium into the pipe body; inserting the plug in the through hole, wherein a gap is arranged between the plug and the through hole; heating the pipe body until the air in the pipe body is discharged outwards through the gap between the plug and the through hole, stopping the heating; hitting the plug into the through hole, wherein the plug is in interferencefit with the through hole; and heating the plug until the plug is melted to enable the plug and the pipe body to form a whole. The heat pipe has the advantages of simplicity in manufacture, seamless sealing heads, long service life and low cost.
Description
technical field [0001] The invention relates to a heat pipe and a manufacturing method thereof. technical background [0002] The heat pipe is a high-efficiency heat exchange element that is filled with a working medium in a closed tube shell and uses the phase change of the medium to absorb and release heat for heat exchange. Existing heat pipes usually use copper with high thermal conductivity as the shell. When producing heat pipes, the two ports of the copper pipe are usually punched into a tapered shape with a punch, and then welded by argon arc welding to form the head of the heat pipe. Therefore, the heat pipe head formed by this welding will inevitably have a weld seam, which will cause leakage of the working medium in the heat pipe and shorten the service life of the heat pipe. Or flatten the end of the copper pipe to form the seal of the heat pipe. This kind of flattened heat pipe seal is prone to cracks, which will also cause leakage of the working medium in the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More