CN201744793U

CN201744793U - End welding structure of embedded welding flux type heat pipe

Info

Publication number: CN201744793U
Application number: CN2010202779239U
Authority: CN
Inventors: 饶振奇; 施铭铨; 陈彦辰
Original assignee: Suzhou Juli Motor Co Ltd
Current assignee: Suzhou Juli Motor Co Ltd
Priority date: 2010-08-02
Filing date: 2010-08-02
Publication date: 2011-02-16
Anticipated expiration: 2020-08-02

Abstract

The utility model discloses an end welding structure of an embedded welding flux type heat pipe, in the technical scheme, a heat pipe comprises a pipe wall, a hollow inner part and a welding end part; the welding end part comprises a closed port and welding flux combined with the closed port, wherein the closed port comprises an outer end edge and an inner wall edge; the end welding structure is characterized in that: the welding flux is placed in the inner wall edge of the closed port in advance, so a welding flux combination and distribution area which comprises the inner wall edge and the outer end edge of the closed port is formed; and by adopting the design, because the welding flux can be placed in the closed port deeply, the welding fastening area can be greatly increased, so the practical inventiveness of effectively increasing the close state strength of the heat pipe end part, prolonging the service life of the heat pipe and improving the quality of the heat pipe are achieved.

Description

The built-in heat pipe of a kind of scolder end welding structure

Technical field

The utility model relates to a kind of heat pipe end welding structure, is meant that especially a kind of scolder adopts built-in in advance innovation structure design.

Background technology

On the heat pipe processing procedure, after the setting of finishing inner capillary structure, working solution filling and vacuumizing operation procedure, its end must be sealed and imposed welding, reach the sealing closed state to make port.

Whether described port reaches preferable closed state, with described welding procedure whether directly related apply the quality good and the bad, yet, with regard to the welding processing procedure and tectonic type of existing heat pipe closed end, normally earlier its port is pressed and be set as a flat closed, imposing scolder in the port of this flat closed again welds, yet, the existing heat pipe of this kind end welding means, because described pressure is set as the port thickness of flat closed 0.6mm may only be arranged,, often be difficult to precisely port be covered sealing fully so put on the scolder of this port outside, and deviation is arranged slightly, will cause the incomplete flaw bad phenomenon of port adaptation; Moreover, because scolder only is distributed in this port outside, even if can precisely fully port be covered sealing, but still can be too weak because of solder side, and be difficult to the firm interior pressure active force that is produced during in the future because of inner expanded by heating in response to heat pipe, and then originating port splits and causes serious problems such as inner vacuum forfeiture, working solution leak outside easily, so and has greatly shortened the service life of heat pipe.

At above-mentioned existing issue, how to develop a kind of innovation heat pipe end welding structure that has more desirable practicality, looked forward to by the user in fact, also must make great efforts target and the direction that research and development break through for relevant dealer.

In view of this, the inventor this in manufacturing development and the design experiences of being engaged in Related product for many years, at above-mentioned target, in detail after design and the scrupulous assessment, eventually the utility model of a true tool practicality.

Summary of the invention

The utility model provides the built-in heat pipe of a kind of scolder end welding structure, and it is primarily aimed at and how develops a kind of new-type heat pipe end welding structure that has more desirable practicality is that target is innovated breakthrough.

For achieving the above object, the technical solution adopted in the utility model is: the built-in heat pipe of a kind of scolder end welding structure, described heat pipe include a tube wall, a hollow is inner and the welding end; Wherein said welding end comprises a closed port and the scolder that is incorporated into this closed port, and described closed port comprises an external end edge and an inner frieze; Wherein: described scolder is for inserting the kenel that presets in this closed port inner frieze in advance, comprises the inner frieze and the external end edge of described closed port with what this constituted described scolder in conjunction with distributed areas.

Related content in the technique scheme is explained as follows:

1. in the such scheme, described scolder is a sheet, when described closed port is the open state of not pressing, insert in advance, and when described closed port during, impose heat again and melt the scolder that welding operation makes this sheet and inner frieze, the external end edge melting driving fit of closed port by pressing.

2. in the such scheme, the scolder of described sheet has bend and is meander-like.

3. in the such scheme, described scolder is a paste, inserts in advance when described closed port is the open state of not pressing, and when described closed port during by pressing, imposes welding operation again and make the scolder of this paste and the inner frieze of closed port reach driving fit.

The utility model operation principle and advantage: the utility model is inserted described scolder in the closed port inner frieze in advance, comprises the inner frieze and the external end edge of described closed port with what this constituted described scolder in conjunction with distributed areas; Innovate unique design whereby, make the utility model contrast prior art, because scolder can penetrate with the inside of described closed port port, so the welding fixed-area that can significantly increase, reach effective enhancement heat pipe end sealing state strength, prolong heat pipe service life, promote the practical improvement of heat pipe quality.

Description of drawings

Accompanying drawing 1 is the combination stereogram of the utility model heat pipe;

Accompanying drawing 2 is the structure sealing forming state cutaway view of the utility model heat pipe welding end;

Accompanying drawing 3 is the formation exploded perspective view of the utility model heat pipe welding end;

Accompanying drawing 4 is that the utility model scolder is inserted the state stereogram in the closed port in advance;

Accompanying drawing 5 is the utility model heat pipe welding end forming step figure;

Accompanying drawing 6 is pressed into the variable condition schematic diagram of the flat mouthful shape of straight line by the opening shape for the utility model closed port.

In the above accompanying drawing: the A. heat pipe; 10. tube wall; 20. hollow inside; 30. welding end; 31. closed port; 311. external end edge; 312. inner frieze; 32. scolder; 40. mechanical pressing mold; 50. welding operation.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: see also shown in Fig. 1～3, be the preferred embodiment of the built-in heat pipe of the utility model scolder end welding structure.

Described heat pipe A can be flat heat pipe or circle heat pipe, it includes a tube wall 10, a hollow inner 20 and welding end 30, described hollow inside 20 is provided with capillary structure and inserts working solution (this partly is not the part that the utility model institute desire is inquired into improvement, promptly will not describe in detail and illustrate); Wherein said welding end 30 comprises a closed port 31 and the scolder 32 that is incorporated into this closed port 31, and this closed port 31 comprises an external end edge 311 and an inner frieze 312; And wherein, described scolder 32 is for inserting the kenel that presets in these closed port 31 inner friezes 312 in advance, whereby, and the inner frieze 312 that comprises described closed port 31 in conjunction with distributed areas that constitutes described scolder 32 and external end edge 311 (detailed as shown in Figure 2).

As shown in Figure 3, described scolder 32 can be made as a sheet, when being the open state of not pressing, described closed port 31 inserts (knowing clearly as shown in Figure 4) in advance, and when described closed port 31 during by pressing (please join shown in Fig. 2,6), impose again heat melt welding operation (as high frequency, reducing atmosphere stove, vacuum drying oven etc.) make as described in inner frieze 312, the external end edge 311 melting driving fits of scolder 32 and closed port 31 of sheet.

It is described to hold continuous epimere, and the scolder 32 of described sheet also can have bend 321 and is meander-like, when described closed port 31 during by pressing, can make scolder 32 exhibitions of meander-like stretch and be tending towards straight sheet (as shown in Figure 5).

Perhaps, described scolder 32 also can be paste (annotate: this example is only with explanatory note), when described closed port is the open state of not pressing, insert in advance equally, and, impose welding operation again and make the scolder of this paste and the inner frieze of closed port reach driving fit when this closed port during by pressing.

Form design by said structure, core design of the present utility model, mainly be to make scolder 32 for inserting the technical characterictic that presets kenel in heat pipe A closed port 31 inner friezes 312 in advance, design whereby, it sees also step shown in Figure 5 on making, the scolder 32 (as hard solder material B razing) of laminar (Foil) or paste (Paste) can be inserted in the inner frieze 312 of heat pipe A closed port 31, with mechanical pressing mold 40 this closed port 31 is pressed into the flat mouthful shape of straight line again, hard solder this moment material will be by described inner frieze 312 tight clampings; The closed port 31 that then will finish pressing more carries out the welding operation 50 (as high frequency, reducing atmosphere stove, vacuum drying oven etc.) of the above temperature of hard solder material melting point, can finish the welding and sealing of heat pipe closed port 31, and constitute scolder comprise the large tracts of land welding and sealing state (detailed as shown in Figure 2) of described closed port 31 inner friezes 312 and external end edge 311 in conjunction with distributed areas.

The utility model is inserted described scolder in the closed port inner frieze in advance, comprises the inner frieze and the external end edge of described closed port with what this constituted described scolder in conjunction with distributed areas; Innovate unique design whereby, make the utility model contrast prior art, because scolder can penetrate with the inside of described closed port port, so the welding fixed-area that can significantly increase, reach effective enhancement heat pipe end sealing state strength, prolong heat pipe service life, promote the practical improvement of heat pipe quality.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1. the built-in heat pipe of scolder end welding structure, described heat pipe include a tube wall, a hollow is inner and the welding end; Wherein said welding end comprises a closed port and the scolder that is incorporated into this closed port, and described closed port comprises an external end edge and an inner frieze; It is characterized in that: described scolder is for inserting the kenel that presets in this closed port inner frieze in advance, comprises the inner frieze and the external end edge of described closed port with what this constituted described scolder in conjunction with distributed areas.

2. the built-in heat pipe of scolder according to claim 1 end welding structure, it is characterized in that: described scolder is a sheet.

3. the built-in heat pipe of scolder according to claim 2 end welding structure, it is characterized in that: the scolder of described sheet has bend and is meander-like.

4. the built-in heat pipe of scolder according to claim 1 end welding structure, it is characterized in that: described scolder is a paste.