CN100379505C

CN100379505C - Heat pipe sealing method for shrink-free pipe and its structure

Info

Publication number: CN100379505C
Application number: CNB2005100077945A
Authority: CN
Inventors: 徐惠群
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-17
Filing date: 2005-02-17
Publication date: 2008-04-09
Anticipated expiration: 2025-02-17
Also published as: CN1820870A

Abstract

The present invention relates to a heat pipe opening sealing method for a shrink-free pipe and a structure thereof. The opening sealing structure forms at a pipe opening end of a heat pipe, the inner part of the heat pipe is in a sealed state after pressed and tightly connected, and further, the heat pipe is formed by squeezing and kneading. An arched surface which is the same as an outer wall of the heat pipe forms at the pipe opening end of the heat pipe after sealed, and an arched circumference formed by the arched surface is longer than the semicircle circumference of the outer wall of the heat pipe.

Description

Exempt from the heat pipe seal method and the structure thereof of the draw

Technical field

The present invention relates to a kind of heat pipe seal method and structure thereof of exempting from the draw, relate in particular to a kind of procedure of processing of must opposite heat tube not carrying out the draw, the nose end of this heat pipe can be sealed, and still can on the pipe port of this heat pipe, be connected the heat pipe seal method of exempting from the draw and the structure thereof of radiating fin.

Background technology

Figure 1 shows that the enclosuring structure of known heat pipe 1a, the nose end 10a of heat pipe 1a carried out the draw, dwindle into the 100a of portion that carefully contracts in advance after; Utilize tightly carefully the contract end of the 100a of portion of tube sealing clamp die again, flatten district 101a to constitute; And welding (not shown) in the upper end of flattening district 101a, the nose end 10a with heat pipe 1a is sealed thus.

But the enclosuring structure of above-mentioned known heat pipe 1a, its nose end 10a dwindle into the main purpose of the 100a of portion that carefully contracts is to make the volume and the area in the enclosuring structure zone of nose end 10a to reduce in advance, so that the carrying out of welding processing.Yet, though dwindling the back, the nose end 10a of heat pipe 1a helps welding processing, but cause the generation of the invalid end of heat pipe 1a also, especially when heat pipe 1a need be applied on the occasion that connects radiating fin, the nose end 10a of heat pipe 1a not only can't connect outside the fin because of dwindling caliber, and more fins group is outer to take up room because of nose end 10a must give prominence to.

Given this, the inventor is for improving and solve the defective that exists in the above-mentioned prior art, through concentrating on studies and cooperating the utilization of scientific principle, proposes a kind of reasonable in design and effectively improve the present invention of above-mentioned defective finally.

Summary of the invention

Main purpose of the present invention is to provide a kind of heat pipe seal method and structure thereof of exempting from the draw, it can solve the defective that exists in the known technology, make heat pipe on nose end, also have the effect that connects radiating fin, also can increase simultaneously the quantity of radiating fin that heat pipe connects, or the minimizing heat pipe protrudes in the outer shared space, invalid end of radiating fin.

To achieve these goals, the invention provides a kind of heat pipe seal method of exempting from the draw, its nose end with heat pipe is being pressed, and makes its nose end form the closely flattening tube wall of contact of interior sidewall surface, and makes the semicircle girth of the formed section length of this flattening tube wall greater than this heat pipe outer wall.

To achieve these goals, the invention provides a kind of heat pipe enclosuring structure of exempting from the draw, it takes shape on the nose end of heat pipe; Wherein, this nose end is the closely flattening tube wall of contact of interior sidewall surface, and should flatten the semicircle girth of the formed section length of tube wall greater than this heat pipe outer wall.

Description of drawings

Fig. 1 is the side cross-sectional schematic of known draw formula heat pipe

Fig. 2 is the three-dimensional appearance schematic diagram of the embodiment of the invention;

Fig. 3 is pressing for the embodiment of the invention and is overlooking section action schematic diagram () when connecting airtight;

Fig. 4 is pressing for the embodiment of the invention and is overlooking section action schematic diagram (two) when connecting airtight;

When carrying out extrusion modling for the embodiment of the invention, Fig. 5 overlooks section action schematic diagram ();

When carrying out extrusion modling for the embodiment of the invention, Fig. 6 overlooks section action schematic diagram (two);

Fig. 7 is the top cross-sectional view of the embodiment of the invention;

Fig. 8 is the user mode schematic diagram of the embodiment of the invention;

Action schematic diagram when Fig. 9 embodiment of the invention is carried out lead angle.

In the accompanying drawing, the list of parts of each label representative is as follows:

The 1a-heat pipe

The 10a-nose end 100a-portion of carefully contracting

101a-flattens the district

The 1-heat pipe

10-nose end 100-flattens tube wall

101-arcwall face 102-lead angle

The 11-outer wall

2-is pressing mould

The 20-first mould 21-second mould

The 3-mould

30-pressing mould 31-pressing mould

32-pressing mould 33-pressing mould

The 4-radiating fin

The 40-perforation

5-lead angle mould

The specific embodiment

In order to make those skilled in the art further understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, accompanying drawing only provide with reference to and usefulness is described, be not to be used for limiting the present invention.

Fig. 2 is the three-dimensional appearance schematic diagram of the embodiment of the invention.The invention provides a kind of heat pipe seal method and structure thereof of exempting from the draw, as shown in Figure 2, this enclosuring structure is formed on the nose end 10 of heat pipe 1, be used to make heat pipe 1 inside to be sealing state, make the working fluid (workingfluid) of heat pipe 1 can carry out phase change, guarantee that the function of heat pipe 1 is able to normal performance.Simultaneously, the nose end 10 of heat pipe 1 still can be for radiating fin 4 (as shown in Figure 8) serial connection thereon after sealing.

This enclosuring structure is being pressed the nose end 10 of heat pipe 1 earlier and is being connected airtight in moulding, further its extruding is mediated and moulding again; Existing conjunction with figs. illustrates its manufacture process:

As shown in Figures 3 and 4, at first, the nose end 10 of heat pipe 1 is placed on pressing in the mould 2, pressing mould 2 to include first mould 20 and second mould 21.First,

second mould

20,21 is protruding, recessed fit shapes respectively, and the nose end 10 of opposite heat tube 1 pushes and the nose end 10 of heat pipe 1 is being pressed connect airtight, promptly pressing moulding in the mode of matched molds, make nose end 10 form the closely flattening tube wall 100 of contact of interior sidewall surface, and flatten tube wall 100 with the semicircle girth of first and

second mould

20,21 formed section length, form planform as shown in Figure 4 greater than heat pipe 1 outer wall.

In addition, after nose end 10 is being pressed and sealed, can further weld earlier, form preferable enclosuring structure the nose end edge that flattens tube wall 100; Perhaps also can be when pressing, pressing with ultrasonic fusing and to connect airtight.

As Fig. 5 and shown in Figure 6, when heat pipe 1 finish above-mentioned pressing the step of connecting airtight after, heat pipe 1 as shown in Figure 4 can be placed in the mould 3.The present invention for embodiment in, mould 3 comprises that four groups are the

pressing mould

30,31,32,33 that inwardly is formed with concave arc, the flattening tube wall 100 that makes heat pipe 1 is relatively between four groups of

pressing moulds

30,31,32,33; After the flattening tube wall 100 of shaping mould tool 3 opposite heat tubes 1 carries out extrusion modling, can make and flatten tube wall 100 and form the arcwall face 101 (as shown in Figure 2) consistent with the outer wall 11 of heat pipe 1, and owing to flatten the semicircle girth of the section length of tube wall 100 greater than heat pipe 1 outer wall, therefore the circular arc girth that constituted of arcwall face 101 is also greater than the semicircle girth of heat pipe 1 outer wall 11, thereby obtains enclosuring structure as shown in Figure 7.

In addition, if end 10 suitable for reading pressing seal after, when the peristoma of flattening tube wall 100 not being welded, also can after flattening tube wall 100 and carrying out the step of this extrusion modling, again the peristoma of flattening tube wall 100 be welded.

By above-mentioned contexture, can obtain heat pipe seal method and the structure thereof of exempting from the draw of the present invention.

Thus, as shown in Figure 8, when heat pipe 1 is applied to connect on the occasion of a plurality of radiating fins 4, because the nose end 10 of heat pipe 1 has formed enclosuring structure as described in the present invention, because its arcwall face 101 formed circular arc girths are greater than the semicircle girth of heat pipe 1 outer wall 11, therefore, the perforation 40 that is opened on each radiating fin 4 can closely match and socket with the nose end 10 of heat pipe 1, makes the nose end 10 of heat pipe 1 also have the effect that connects radiating fin 4.Simultaneously, the moulding of arcwall face 101 also can increase contacting of

nose end

10 and 4 of radiating fins, and has increased the quantity of the radiating fin 4 of heat pipe 1 connection of passing, or reduces heat pipe 1 and protrude in the outer shared space, invalid end of radiating fin 4.

As shown in Figure 9, for making heat pipe 1 nose end 10 when inserting radiating fin 4, be convenient to carrying out smoothly of insert action, also available lead angle mould 5 line up ends 10 carry out extrusion modling, form lead angle 102 in the edge of flattening tube wall 100.Lead angle 102 is convenient to heat pipe 1 carries out radiating fin 4 with this sealing end insert action.

In sum, the present invention can reach the application target of expection really, solves the defective that exists in the prior art, have novelty and creativeness, meet the requirement of application for a patent for invention fully, file an application according to Patent Law, would like to ask detailed survey and authorize this case patent, to ensure inventor's right.

The above only is the preferred embodiments of the present invention, be not so promptly limit claim of the present invention, the equivalent structure transformation that every utilization specification of the present invention and accompanying drawing content are done, or directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present invention.

Claims

1. heat pipe seal method of exempting from the draw, it is characterized in that, described method is: the nose end of described heat pipe is being pressed, and make its nose end form the closely flattening tube wall of contact of interior sidewall surface, and make the semicircle girth of the formed section length of described flattening tube wall greater than described heat pipe outer wall, and described flattening tube wall further carried out extrusion modling, make it form the arcwall face consistent with described heat pipe outer wall.

2. heat pipe seal method of exempting from the draw as claimed in claim 1 is characterized in that the nose end of described heat pipe is being pressed moulding in the mode that matched molds pushes relatively.

3. heat pipe seal method of exempting from the draw as claimed in claim 1 when the nose end that it is characterized in that described heat pipe is being pressed, is being pressed with ultrasonic fusing.

4. heat pipe seal method of exempting from the draw as claimed in claim 1, after the nose end that it is characterized in that described heat pipe was being pressed, further the nose end edge to described flattening tube wall welded.

5. heat pipe seal method of exempting from the draw as claimed in claim 1, it is characterized in that described flattening tube wall carries out extrusion modling after, the mouth of pipe edge to described flattening tube wall welds again.

6. heat pipe enclosuring structure of exempting from the draw, it is molded on the nose end of heat pipe; It is characterized in that the nose end of described heat pipe is the closely flattening tube wall of contact of interior sidewall surface, and the formed section length of described flattening tube wall is greater than the semicircle girth of described heat pipe outer wall, described flattening tube wall has the arcwall face consistent with described heat pipe outer wall.

7. heat pipe enclosuring structure of exempting from the draw as claimed in claim 6 is characterized in that the nose end edge of described flattening tube wall is formed with lead angle.