CN100467201C - Method for making integrated-formed flat heat pipe and heat pipe base material - Google Patents
Method for making integrated-formed flat heat pipe and heat pipe base material Download PDFInfo
- Publication number
- CN100467201C CN100467201C CNB2005100804174A CN200510080417A CN100467201C CN 100467201 C CN100467201 C CN 100467201C CN B2005100804174 A CNB2005100804174 A CN B2005100804174A CN 200510080417 A CN200510080417 A CN 200510080417A CN 100467201 C CN100467201 C CN 100467201C
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- heat pipe
- base material
- capillary structure
- backing
- flat heat
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Abstract
This invention relates to a manufacturing method for molding at one run flat heat conduction tubes including: a, taking a round backing, setting a capillary structure at the central position of the backing and injecting working fluid in a shell, sealing the two ends of the backing so as to form a heat conduction tube backing, b, pressing the backing to flat of necessary dimension, c, rolling the backing from one side to the other, d, cutting said backing to ordered dimensions and sealing them to form suitable heat conduction tubes. A heat conduction tube backing includes a round backing several times of the length of a product tube, in which, capillary structure is set in the round backing, working fluid is injected in a shell and both ends of the backing are sealed.
Description
Technical field
The present invention is relevant for a kind of preparation method and heat pipe base material of integrated-formed flat heat pipe, especially finger is a kind of can use the execution phase at product, use size at last according to product again, cut and seal once and finish, can reach the preparation method and the heat pipe base material of the integrated-formed flat heat pipe of application portability and flexibility really.
Background technology
As shown in Figure 1, general existing heat pipe 1, its production method are the final demand length according to product, former material length (about 2.4 meters long, or longer yardstick) is carried out the processing first time cut, and cutoff length is about 1.3 to 1.5 times of finished product requirement size and does not wait.Cut the base material of finishing, carry out heat pipe characteristic procedure for producing such as sintering, mesh or groove.Processing base material after cutting via former material, quantity is ten several times of former material, and water filling, degasification the necessary processing procedure procedure for processing time such as vacuumize and also be required to be more than the several times of former material processing, and carries out finished product length at last and add man-hour, need clip the unnecessary former material of front end, increase the loss of processing procedure time and material cost.
When if desire is changed to flat with this heat pipe 1, normally after 1 moulding of circular heat conduit, impose an external force by instrument again, circular heat conduit 1 is flattened to required specification, and formation flat heat pipe 2 as shown in Figure 2, but because this heat pipe 1 its capillary structure and working fluid when making have been arranged at the inboard wall of tube body of heat pipe 1 all, therefore, if apply tack and the porosity that an external force then can be destroyed capillary structure, the usefulness of heat pipe is had a greatly reduced quality, reduce process rate, so cause the scope of application of general heat pipe to be restricted, and can't apply to the needs of actual use.
Summary of the invention
Main purpose of the present invention is to improving the shortcoming of above-mentioned existing structure and method, change into adopting and carry out the heat pipe procedure for processing with former material length earlier, finish vacuumize and processing procedures such as degasification, flattening after, carry out section cutting again to seal, can reduce the processing procedure cost, this is one of advantage of the present invention
For reducing the loss of efficacy that the heat pipe bending is flattened, the present invention is placed in catheter center inside with capillary structure, and capillary structure does not closely cohere with inner wall of heat pipe, when carrying out bending and flattening processing procedure, the capillary structure deflection is low, still can keep original capillary function, and this is two of an advantage of the present invention
In addition, this integrate shaped type heat pipe can place by coiling mode, when follow-up utilization,, cut and seal once and finish, so according to required length and quantity, can increase the flexibility of heat pipe production and processing, significantly reduce production costs and the backup amount, this is three of an advantage of the present invention.
In order to achieve the above object, the preparation method of a kind of integrate shaped type heat pipe of the present invention, it such as comprises moulding, flattens, furls and cuts at least at step; And get a circular base material when implementing, and the center is provided with capillary structure in this circle base material, and is perfused with working fluid in circular base material inside, and these circle base material two ends are sealed, and using one-body molded is a circular heat conduit base material; This circular heat conduit base material is placed circular heat conduit base material to furl kenel toward the direction of the other end by the one end, or flatten and placed to furl kenel again after processing procedure becomes flat heat pipe base material; In when utilization, according to required length dimension this flat heat pipe base material is cut simultaneously and to seal, and form a flat heat pipe that is fit to.
A kind of heat pipe base material provided by the invention, comprise a circular base material, the length of this circle base material is the several times of finished product heat pipe length, is provided with capillary structure in this circle base material, and be perfused with working fluid, and should circle base material two end closures and constitute a heat pipe base material in enclosure interior.
The present invention also provides a kind of preparation method of heat pipe, comprises the following steps:
A. moulding: get a circular base material, length is the several times of finished product heat pipe length, the center is provided with capillary structure in this circle base material, and is perfused with working fluid in enclosure interior, and should circle base material two ends be sealed that to use one-body molded be a heat pipe base material;
B. cut:, according to required length dimension this heat pipe base material is cut simultaneously and to seal, and form a heat pipe that is fit in when utilization.
According to such scheme, various shortcoming, simplification that the present invention can effectively improve existing structure and method cut and seal processing procedure, and the product length size Control can reduce the processing procedure cost; And the present invention is placed in catheter center inside with capillary structure, and capillary structure does not closely cohere with inner wall of heat pipe, and when carrying out bending and flattening processing procedure, the capillary structure deflection is low, still can keep original capillary function; This integrate shaped type heat pipe can place by coiling mode, according to required length and quantity, cuts and seals once and finish when follow-up utilization, so, can increase the flexibility of heat pipe production and processing, significantly reduces production costs and the backup amount.
Description of drawings
Fig. 1 is existing heat pipe schematic appearance.
Fig. 2 is existing flat heat pipe schematic appearance.
Fig. 3 is a heat pipe processing steps schematic flow sheet of the present invention.
Fig. 4 is the generalized section of circular heat conduit base material of the present invention.
Fig. 5 furls view for circular section of the present invention heat pipe base material.
Fig. 6 furls view for the flat heat pipe base material of the present invention.
Fig. 7 is the cross-sectional profile schematic diagram of the flat heat pipe of the present invention.
Fig. 9 is the view of processing of cutting embodiment of the present invention.
The main element symbol description
1,2...... heat pipe
The present invention
3...... moulding 31...... flat housing
The flow liquid 32...... capillary structure 33...... works
34...... circular heat conduit base material 4...... flattens
5...... furl the flat heat pipe base material of 7......
7a...... heat pipe 8...... cuts, laminating mechanism
The specific embodiment
Consult shown in Figure 3ly, be heat pipe base material processing steps schematic flow sheet of the present invention.As shown in the figure: a kind of integrated-formed flat heat pipe of the present invention, its preparation method comprise moulding 3 at least, flatten 4, furl 5 and cut steps such as 6; Make that assembly, cutting and the application of heat pipe are more convenient, can reduce heat pipe and make and application cost.
Now the present invention's each step shown in Figure 3 is described as follows:
A. moulding 3: consult shown in Figure 4, get a circular base material 31, this circle base material 31 directly adopts former material length, behind previous operations processing procedures such as cleaning, carry out the processing of capillary structure 32 handles with whole Zhi Yuancai length, and the material of capillary structure 32, can be the metal mesh, composites such as carbon copper silver aluminium, carbon fiber, capillary, measuring fiber etc., behind molding, be placed into circular base material 31 inside, do not connect airtight and combine with circular base material 31 tube walls, and the length of capillary structure 32 is slightly larger than circular base material 31, one end and circular base material 31 rear ports are also neat fixing, and in addition pressing sealing, afterwards with direct filling injection work flow liquid 33, or natural siphon injection work flow liquid 33 modes, insert saturation capacity, and the long circular heat conduit base material 34 of one-body molded length for guaranteeing the water yield saturation degree and the uniformity, injects work flow liquid 33 and vacuumizes processing procedure and need carry out simultaneously.By front port vacuumize, the degasification processing procedure, vacuum with sealing machine pressing sealing, is finished circular heat conduit base material 34 and is sealed procedure for processing after requiring to decide to finish vacuum process on the equipment capability of bleeding with the processing procedure time.
B. flatten 4: circular heat conduit base material 34 is imposed an external force by instrument, circular heat conduit base material 34 is flattened to required size, become flat heat pipe base material 7, shown in Fig. 6,7
C. furl 5: will this flat heat pipe base material 7 coil with a volume bed board toward the direction of the other end and furl kenel flat heat pipe base material 7 is placed, store and transport with convenient by the one end.As shown in Figure 5, for circular section of the present invention heat pipe base material furls view, can be when following process require, after the straightening reduction, in addition bending and flatten processing procedure again; Fig. 6 furls view for flat heat pipe base material of the present invention, has finished and has flattened the flat heat pipe base material 7 furl, follow-up can not be more in addition bending distortion.
D. cut 6: in the product utilization execution phase, this flat heat pipe base material 7 is cut simultaneously seal according to required length dimension, and form a flat heat pipe 7a who is fit to, as shown in Figure 9, can cooperate one cut, laminating mechanism 8, and form a flat heat pipe 7a who meets Len req, can save the vacuumizing of existing single heat pipe of method segmentation, fixed length (secondary degasification) the processing procedure man-hour of etc.ing and processing procedure and excise material and cut and seal once to finish, can reach application portability and flexibility really.
See also Fig. 7,8, be the cross-sectional profile schematic diagram of the flat heat pipe of the present invention, the longitudinal profile schematic diagram of the flat heat pipe of the present invention; As shown in the figure, flat heat pipe capillary structure 32 of the present invention, in the processing procedure of flattening 4, because of the elasticity of its material itself closely connected in tube wall inside, but there is not pressure in conjunction with gluing structure, and the working fluid 33 that pour into flat heat pipe base material 7 inside can be pure water, methyl alcohol, methane, refrigerant, liquid nitrogen, liquid carbon dioxide or other heat pipe working fluid 33 commonly used, or can be above mixture.
A kind of integrated-formed flat heat pipe of the present invention, because of its capillary structure not with the inside pipe wall gluing, when carrying out the bending processing procedure, the center capillary structure will slightly be offset to the small curvature radius direction, to reduce the structural change of local elongation and extruding, so, capillary structure is influenced by the bending angle hardly.The minimum of this integrated-formed flat heat pipe base material 7 is flattened thickness can be to below 1 millimeter and do not destroy capillary structure, and this non-general heat pipe can reach.
In sum, the flat heat pipe of the present invention can effectively improve the various shortcoming of existing method and structure, simplifies cutting and sealing processing procedure, product length size Control, in operational phase, carry out, and then make generation of the present invention can more progressive, more practical, more meet the required of user.
But the above only is preferred embodiment of the present invention, when not limiting scope of the invention process with this; Allly change and modify, all should still belong in the scope that patent of the present invention contains according to simple equivalent that the present invention did.
Claims (7)
1. the preparation method of an integrated-formed flat heat pipe is characterized in that, comprises the following steps:
A. moulding: get a circular base material, circular base material length is the several times of single heat pipe length, the center is provided with capillary structure in this circle base material, has spacing between capillary structure and the base material inside pipe wall, and be perfused with working fluid in described circular base material inside, and should circle base material two ends be sealed and use the one-body molded heat pipe base material that is;
B. flatten: the heat pipe base material is imposed an external force flatten to required size;
C. furl: this heat pipe base material is placed the heat pipe base material to furl kenel by the direction of one end toward the other end;
D. cut:, according to required length dimension this heat pipe base material is cut simultaneously and to seal, and form a heat pipe that is fit in when utilization.
2. the preparation method of integrated-formed flat heat pipe as claimed in claim 1 is characterized in that, its minimum thickness that flattens of the cross section of this heat pipe base material is below 1 millimeter.
3. the preparation method of integrated-formed flat heat pipe as claimed in claim 1 is characterized in that, this capillary structure comprises metal mesh, carbon copper silver aluminium, carbon fiber, capillary and/or measuring fiber.
4. the preparation method of integrated-formed flat heat pipe as claimed in claim 1 is characterized in that, this working fluid is the mixture of pure water, methyl alcohol, methane, refrigerant, liquid nitrogen, liquid carbon dioxide or above material.
5. the preparation method of integrated-formed flat heat pipe as claimed in claim 1 is characterized in that, cutting step can cooperate one to cut laminating mechanism, this heat pipe is cut the action of sealing simultaneously according to required length dimension.
6. flat heat pipe of reel, comprise a flat tubulose base material, it is characterized in that, the length of this base material is the several times of single heat pipe length, in this tubulose base material, be provided with capillary structure, have spacing between capillary structure and the base material inside pipe wall, and be perfused with working fluid in described circular base material inside, and this base material two end closures and constitute a heat pipe base material, heat pipe base material are toward the direction of the other end by the one end and furl kenel.
7. the flat heat pipe of reel according to claim 6 is characterized in that, its minimum thickness that flattens of the cross section of heat pipe base material is below 1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100804174A CN100467201C (en) | 2005-07-01 | 2005-07-01 | Method for making integrated-formed flat heat pipe and heat pipe base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100804174A CN100467201C (en) | 2005-07-01 | 2005-07-01 | Method for making integrated-formed flat heat pipe and heat pipe base material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1891394A CN1891394A (en) | 2007-01-10 |
| CN100467201C true CN100467201C (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100804174A Expired - Fee Related CN100467201C (en) | 2005-07-01 | 2005-07-01 | Method for making integrated-formed flat heat pipe and heat pipe base material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100467201C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813429B (en) * | 2009-02-20 | 2013-01-23 | 富瑞精密组件（昆山）有限公司 | Manufacturing method of heat pipe |
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2005
- 2005-07-01 CN CNB2005100804174A patent/CN100467201C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1891394A (en) | 2007-01-10 |
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Granted publication date: 20090311 Termination date: 20110701 |