CN103256845A - Wick structure forming method of plate type heat pipe and finished product thereof - Google Patents
Wick structure forming method of plate type heat pipe and finished product thereof Download PDFInfo
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- CN103256845A CN103256845A CN 201210036228 CN201210036228A CN103256845A CN 103256845 A CN103256845 A CN 103256845A CN 201210036228 CN201210036228 CN 201210036228 CN 201210036228 A CN201210036228 A CN 201210036228A CN 103256845 A CN103256845 A CN 103256845A
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- heat pipe
- tabular heat
- capillary structure
- forming method
- capillary
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Abstract
The invention relates to a wick structure forming method of a plate type heat pipe and a finished product thereof. The wick structure forming method of the plate type heat pipe comprises firstly providing a plurality of fiber bundles and laying into a sheet shape to sinter the fiber bundles to manufacture a sheet-shaped wick structure, and then manufacturing pit-shaped portions on the manufactured wick structure to serve as airflow channels for vaporized working fluid to pass through. According to the wick structure forming method of the plate type heat pipe and the finished product thereof, metal powders are sintered on a metal net to form the sheet-shaped wick structure, and holes are punched on the wick structure to serve as the airflow channels, therefore, the wick structure not only can serve as a support structure inside the plate type heat pipe, but also thin-type or ultra-thin size requirements can still be met.
Description
Technical field
The present invention relates to a kind of heat conducting element and preparation method thereof, refer to a kind of capillary texture forming method and finished product thereof of tabular heat pipe especially.
Background technology
Heat pipe (Heat pipe) is a kind of environment by inner vacuum, and its inner working fluid (working fluid) can produce liquid because meeting heat, vapour phase changes for injecting, and then transmits heat with steam; Again because meeting the cold liquid state back that reverts back to the heat-conduction component of reflux cycle.And be the 3C heating product in response to slimming at present, cylindrical in the past heat pipe must form tabular heat pipe (Plate type heat pipe) via technologies such as pressings with its flattening.
Yet, when the body of heat pipe form tabular after, its volume inside is flattening in the lump also, so cause heat pipe on technology such as carry out degasification or vacuumize, because vacuum pressure makes its tube wall depression, therefore must insert supporting construction in body prevents the body depressed deformation easily.But the tabular heat pipe of slimming has the restriction of its necessary sized at thickness, if capillary structure and supporting construction are parallel in the tabular heat pipe, also need to reserve the circulation passage after vaporizing for working fluid in certain space, the space size that so adds the General Logistics Department namely can't satisfy or exceed the size requirements of slim or ultra-thinization, thereby has any problem more on technology and remain to be solved.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of capillary texture forming method and finished product thereof of tabular heat pipe, it passes through metal powder sintered on fibre bundle, to form a laminar capillary structure, and in this capillary structure upper punch drilling hole as gas channel, so not only can be used as the supporting construction in the tabular heat pipe, still can reach the size requirements of slim or ultra-thinization simultaneously.
In order to reach above-mentioned purpose, the invention provides a kind of capillary texture forming method of tabular heat pipe, the capillary texture forming method of described tabular heat pipe may further comprise the steps:
A) provide a plurality of fibre bundles, and be laid to one laminar;
B) described fibre bundle is carried out sintering, to make a sheet capillary structure;
C) make the position that is recess at described capillary structure.
As the preferred version of the capillary texture forming method of above-mentioned a kind of tabular heat pipe, wherein step a) is also further infiltrated metal dust between described fibre bundle.
As the preferred version of the capillary texture forming method of above-mentioned a kind of tabular heat pipe, the position that wherein is recess described in the step c) is one or more holes.
As the preferred version of the capillary texture forming method of above-mentioned a kind of tabular heat pipe, the position that wherein is recess described in the step c) is that cutting, compacting or punching out form.
In order to reach above-mentioned purpose, the invention provides a kind of capillary structure of tabular heat pipe, the capillary structure of described tabular heat pipe is bonded to a sheet by a plurality of fibre bundles and is constituted with sintering, and described capillary structure is provided with the position that is recess.
Preferred version as the capillary structure of above-mentioned a kind of tabular heat pipe also is bonded with metal dust with sintering between wherein said fibre bundle.
As the preferred version of the capillary structure of above-mentioned a kind of tabular heat pipe, the wherein said position that is recess is one or more holes.
As the preferred version of the capillary structure of above-mentioned a kind of tabular heat pipe, wherein said hole is strip.
In order to reach above-mentioned purpose, the invention provides a kind of tabular heat pipe, described tabular heat pipe comprises a body and is located at the interior capillary structure of described body, be hollow form in the described body and form an accommodation space that is the finedraw shape, and described capillary structure is inserted in it and support the inwall that is affixed on described accommodation space, and described capillary structure is bonded to a sheet by a plurality of fibre bundles and is constituted with sintering, and is provided with the position that is recess at described capillary structure.
As the preferred version of above-mentioned a kind of tabular heat pipe, wherein said capillary structure also is bonded with metal dust with sintering between described fibre bundle.
As the preferred version of above-mentioned a kind of tabular heat pipe, the wherein said position that is recess is one or more holes.
As the preferred version of above-mentioned a kind of tabular heat pipe, wherein said hole is strip.
As the preferred version of above-mentioned a kind of tabular heat pipe, wherein said body has a blind end and a sealing end, and described hole extends to its sealing end place by nearly its blind end place in the described body, to communicate with described sealing end.
As the preferred version of above-mentioned a kind of tabular heat pipe, wherein said sealing end also comprise a draw portion, that is formed by described body convergent be formed at described draw portion end except gas port and fill out be encapsulated in described except the mouth-sealed portion on the gas port.
The present invention passes through metal powder sintered on fibre bundle, to form a laminar capillary structure, and in this capillary structure upper punch drilling hole as gas channel, so not only can be used as the supporting construction in the tabular heat pipe, still can reach the size requirements of slim or ultra-thinization simultaneously.
Description of drawings
Fig. 1 is the flow chart of steps of manufacturing process of the present invention;
Fig. 2 is laid in laminar floor map for the present invention with fibre bundle;
Fig. 3 for the present invention with metal powder sintered floor map on fibre bundle;
Fig. 4 is the A-A cross-section cutaway view of Fig. 3;
Fig. 5 has the decomposing schematic representation of the body of the fibre bundle of metal dust and tabular heat pipe for sintering of the present invention;
Fig. 6 inserts the interior sectional schematic diagram of body of tabular heat pipe for sintering of the present invention has the fibre bundle of metal dust;
Fig. 7 is the schematic perspective view of the made tabular heat pipe of the present invention;
Fig. 8 is the schematic perspective view of the made tabular heat pipe of another embodiment of the present invention.
[main element symbol description]
Fibre bundle-1;
Metal dust-2;
Capillary structure-3; Hole-30;
Body-4; Accommodation space-40; Blind end-41; Sealing end-42; Draw portion-420; Except gas port-421; Mouth-sealed portion-422;
Step-S1, S2, S3, S4.
The specific embodiment
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing with describe in detail only provide with reference to the usefulness of explanation, be not for limiting the present invention.
The invention provides a kind of capillary texture forming method and finished product thereof of tabular heat pipe, its by metal powder sintered on fibre bundle to form laminar capillary structure, and then go for the tabular heat pipe of slimming, can be simultaneously as the capillary structure in the tabular heat pipe and supporting construction.See also shown in the step S1 of Fig. 1: at first, provide a plurality of fibre bundles 1, and be laid to for one laminar (namely as shown in Figure 2); Described fibre bundle 1 can be laid according to width and the thickness of required capillary structure, and to each other can be freely or optionally interlaced or place, to produce the capillarity of multidirectional.
And the present invention for embodiment in, also further after step S1, add as the step S2 of Fig. 1: as shown in Figure 3, infiltrate metal dust 21 of above-mentioned fibre bundle, increase capillary force by metal dust 21 of each fibre bundle of infiltration.
Then, shown in the step S3 of Fig. 1: with above-mentioned infiltration have metal dust 2 as described in fibre bundle 1 carry out sintering, to make a sheet capillary structure 3(namely as shown in Figure 4); And because described fibre bundle 1 has the gap to each other, so can infiltrate for metal dust 2, and after to be sintered the finishing, metal dust 2 can be bonded on the described fibre bundle 1, and described fibre bundle 1 also can have the effect of typing because of sintering, more can promote capillary force because of the gap that metal dust 2 is sintered in 1 of described fibre bundle.
Afterwards, shown in the step S4 of Fig. 1: again on the capillary structure 3 of above-mentioned sinter molding with methods such as cutting, compacting or punching out and make the position that is recess, or further constitute as one or more hole 30(of Openworks shape namely as shown in Figure 5) etc., the gas channel that is passed through when circulating as the working fluid after the steam supplyization in the heat pipe so can finish one applicable to the capillary structure 3 in the tabular heat pipe.
Accordingly, as shown in Figure 5, when above-mentioned fibre bundle 1 by behind the described capillary structure 3 of sinter molding, can form laminar capillary structure and be convenient to insert in the body 4 of a tabular heat pipe; Wherein, be hollow form in the body 4 and form an accommodation space 40 that is the finedraw shape, insert in it for above-mentioned capillary structure 3 and be affixed on accommodation space 40 inwalls (namely as shown in Figure 6) to support.Body 4 can be by after the pull moulding, again via being crushed to flat, and the one end can carry out tube sealing earlier and form a blind end 41, the other end and then keep the opening shape earlier and insert for above-mentioned capillary structure 3, makes be used to carrying out as the sealing end 42(of operations such as degasification namely as shown in Figure 7 again); And the present invention for embodiment in, what described sealing end 42 can comprise that a draw portion 420, that is formed by body 40 convergents is formed at draw portion 420 ends fills out the mouth-sealed portion 422 that is encapsulated in except on the gas port 421 except gas port 421 and, and before not carrying out operations such as degasification as yet, except gas port 421 is still kept its opening shape and is not sealed with mouth-sealed portion 422, in order to carry out operation such as degasification.
In addition, as shown in Figure 8, be the schematic perspective view of the made tabular heat pipe of another embodiment of the present invention; Wherein, above-mentioned capillary structure 3 is when carrying out the technology at punching out depression position, can make also that described depression position is one or more holes 30 that are strip and hollow out, and each hole 30 extends to its sealing end 42 places by nearly its blind end 41 places in the body 40, to communicate with sealing end 42.So, tabular heat pipe is when carrying out the degasification operation, capillary structure 3 can not only provide enough support strength to avoid outside body 4 depressions, hole 30 that simultaneously can be by being strip is as gas channel, not concretive gas can be discharged towards sealing end 42 along the hole 30 of strip during for degasification, further to reach the purpose of complete degasification.
By above-mentioned contexture, can obtain capillary texture forming method and the finished product thereof of the tabular heat pipe of the present invention.
The above is preferred embodiment of the present invention only, is not in order to limiting claim of the present invention, so the equivalence of using patent spirit of the present invention to do such as changes and modifies etc., all should in like manner be included in the scope of patent protection of the present invention.
Claims (14)
1. the capillary texture forming method of a tabular heat pipe is characterized in that, the capillary texture forming method of described tabular heat pipe may further comprise the steps:
A) provide a plurality of fibre bundles, and be laid to one laminar;
B) described fibre bundle is carried out sintering, to make a sheet capillary structure;
C) make the position that is recess at described capillary structure.
2. the capillary texture forming method of tabular heat pipe according to claim 1 is characterized in that step a) is also further infiltrated metal dust between described fibre bundle.
3. the capillary texture forming method of tabular heat pipe as claimed in claim 1 or 2 is characterized in that the position that is recess described in the step c) is one or more holes.
4. as the capillary texture forming method of tabular heat pipe as described in the claim 3, it is characterized in that the position that is recess described in the step c) is that cutting, compacting or punching out form.
5. the capillary structure of a tabular heat pipe is characterized in that, the capillary structure of described tabular heat pipe is bonded to a sheet by a plurality of fibre bundles and is constituted with sintering, and described capillary structure is provided with the position that is recess.
6. as the capillary structure of tabular heat pipe as described in the claim 5, it is characterized in that, also be bonded with metal dust between described fibre bundle with sintering.
7. as the capillary structure of tabular heat pipe as described in claim 5 or 6, it is characterized in that the described position that is recess is one or more holes.
8. as the capillary structure of tabular heat pipe as described in the claim 7, it is characterized in that described hole is strip.
9. tabular heat pipe, it is characterized in that, described tabular heat pipe comprises a body and is located at the interior capillary structure of described body, be hollow form in the described body and form an accommodation space that is the finedraw shape, and described capillary structure is inserted in it and support the inwall that is affixed on described accommodation space, and described capillary structure is bonded to a sheet by a plurality of fibre bundles and is constituted with sintering, and is provided with the position that is recess at described capillary structure.
10. tabular heat pipe as claimed in claim 9 is characterized in that, described capillary structure also is bonded with metal dust with sintering between described fibre bundle.
11., it is characterized in that the described position that is recess is one or more holes as claim 9 or 10 described tabular heat pipes.
12. tabular heat pipe as claimed in claim 11 is characterized in that described hole is strip.
13. tabular heat pipe as claimed in claim 12 is characterized in that, described body has a blind end and a sealing end, and described hole extends to its sealing end place by nearly its blind end place in the described body, to communicate with described sealing end.
14. tabular heat pipe as claimed in claim 13 is characterized in that, described sealing end also comprise a draw portion, that is formed by described body convergent be formed at described draw portion end except gas port and fill out be encapsulated in described except the mouth-sealed portion on the gas port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210036228 CN103256845A (en) | 2012-02-17 | 2012-02-17 | Wick structure forming method of plate type heat pipe and finished product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210036228 CN103256845A (en) | 2012-02-17 | 2012-02-17 | Wick structure forming method of plate type heat pipe and finished product thereof |
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| Publication Number | Publication Date |
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| CN103256845A true CN103256845A (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210036228 Pending CN103256845A (en) | 2012-02-17 | 2012-02-17 | Wick structure forming method of plate type heat pipe and finished product thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928403A (en) * | 2016-04-28 | 2016-09-07 | 安徽工业大学 | Powder-microfiber composite porous capillary core applicable to loop heat pipe system |
| CN107462097A (en) * | 2017-09-22 | 2017-12-12 | 安徽工业大学 | A kind of variable aperture capillary wick and its processing method applied to loop circuit heat pipe system |
-
2012
- 2012-02-17 CN CN 201210036228 patent/CN103256845A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928403A (en) * | 2016-04-28 | 2016-09-07 | 安徽工业大学 | Powder-microfiber composite porous capillary core applicable to loop heat pipe system |
| CN107462097A (en) * | 2017-09-22 | 2017-12-12 | 安徽工业大学 | A kind of variable aperture capillary wick and its processing method applied to loop circuit heat pipe system |
| CN107462097B (en) * | 2017-09-22 | 2022-07-05 | 安徽工业大学 | Variable-aperture capillary core applied to loop heat pipe system and processing method thereof |
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Application publication date: 20130821 |