Heat pipe sealing structure, method and equipment
A technology for sealing equipment and heat pipes, which is applied in the field of equipment for manufacturing the sealing structure, can solve the problems of reducing the tightness of the sealing part, and achieve the effects of enhancing the bonding strength, simplifying the process and improving the stability.
Inactive Publication Date: 2007-11-14
FU ZHUN PRECISION IND SHENZHEN +1
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Problems solved by technology
The sealing structure 12 is a two-layer structure formed by deformation of the metal by external force; since the sealing structure 12 is a smooth arc structure and the metal has elasticity, when the external force disappears, the metal tends to restore a small amount of deformation and affect the sealing structure 12. The bonding strength between the two layers of metal, the tightness of the seal will be reduced
Method used
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[0021] Please refer to FIGS. 2 to 3 together. The heat pipe 100 includes a metal shell 120 and a sealing structure 110 . The sealing structure 110 is a bent double-layer structure after being bent three times; the cross-section of the double-layer structure is roughly M-shaped, and its projection on a plane perpendicular to the axis of the heat pipe 100 is also roughly M-shaped. The cross-sectional shape is the same. The double-layer structure is bent along the transverse direction of the heat pipe 100, and straight along the extending direction of the tube body length of the heat pipe 100, that is, the double-layer structure is a continuous body in the extending direction of the tube body length of the heat pipe 100, and no The shoulder structure is used to reduce the stress effect on the sealing structure 110 caused by the sudden change of shape.
[0022] Please refer to FIG. 3 again, the sealing structure 110 can be roughly divided into four overlapping portions, namely tw...
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A thermotube seal structure forms at one seal end of the thermotube, and the seal end's tube wall folds into double deck, and the double deck appears bent style. The thermotube seal structure's making way includes the following steps :(1)providing a metal tube body with an opening end ,(2)using a pair of mould group to punch the tube's opening end along the radial of the tube body, to make the two opposite lamination parts told to a lamination .And the mould group includes the first mould and the second mould ,the first mould contains a sag part, the second mould has a bump, the sag and the bump mesh with each other making the double deck structure be bent style. A device for making said thermotube seal structure is provided. The invention's thermotube seal structure appears ben , and can effectively resist the tube wall restoring to the original state folded, and also linking intensity between the double deck of the thermotube seal structure.
Description
technical field [0001] The invention relates to a heat pipe sealing structure, its manufacturing method and equipment for manufacturing the sealing structure. Background technique [0002] At present, the heat pipe is one of the most widely used heat transfer elements, and its application in the field of electronic heat dissipation is becoming more and more popular. A heat pipe generally includes a sealed pipe body and an appropriate amount of working medium filled in the pipe body. The heat pipe transfers and dissipates the heat generated by the electronic components through the phase change of the working medium in the heat pipe. By vacuuming, a certain degree of vacuum can be formed in the heat pipe to reduce the response temperature of the heat pipe (the temperature at which the phase change of the working medium occurs, that is, the boiling point). The higher the vacuum in the heat pipe (the smaller the pressure in the heat pipe), the lower the response temperature of...
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IPC IPC(8): F28D15/02
Inventor 林振辉李敬皓于巍
Owner FU ZHUN PRECISION IND SHENZHEN