CN102909522A - Heat pipe and method for manufacturing same - Google Patents
Heat pipe and method for manufacturing same Download PDFInfo
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- CN102909522A CN102909522A CN2011102177708A CN201110217770A CN102909522A CN 102909522 A CN102909522 A CN 102909522A CN 2011102177708 A CN2011102177708 A CN 2011102177708A CN 201110217770 A CN201110217770 A CN 201110217770A CN 102909522 A CN102909522 A CN 102909522A
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- heat pipe
- ladder
- pipe
- evaporator section
- condensation
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Abstract
The invention relates to a heat pipe and a method for manufacturing the same. The heat pipe comprises a stepped pipe and a powder sintered structure. A plurality of grooves are arranged on the inner wall of the stepped pipe, the stepped pipe is provided with an evaporation section and two condensation sections, the condensation sections are respectively formed on two sides of the stepped pipe, the evaporation section is positioned between the two condensation sections, insides of the condensation sections are communicated with the inside of the evaporation section, the encircling perimeter of the evaporation section is larger than the encircling perimeter of each condensation section, and the powder sintered structure is combined inside an optional one of the condensation sections. Accordingly, the flowing speed and the heat conduction efficacy of internal air can be improved.
Description
Technical field
The present invention relates to a kind of heat pipe, particularly a kind of heat pipe preparation method and manufactured goods thereof.
Background technology
Heat pipe (Heat Pipe) is applied in the heat conduction of the pyrotoxin of electronic product, can effectively overcome the electronic heating source problem that heat raises day by day, this heat pipe is replaced the radiator structure that in the past only was made of fin, obviously become future developing trend; But under the prerequisite of light, thin, short, little development, how the heat conduction efficiency of opposite heat tube is done further and is promoted, and to meet the user demand of aforementioned electronic product, then is inventor's technical task to be solved at electronic product.
Known heat pipe mainly comprises an isometrical body, a capillary structure and a working fluid, has a cavity volume in the inside of isometrical body; Capillary structure is laid in the cavity volume and mutually amplexiforms with the inner surface of body; Working fluid is then filled in cavity volume and is accumulated in the capillary structure, so to produce a heat pipe.
Yet the body of known heat pipe is an isometrical kenel, when inner working fluid is evaporated to gas, can not heat be taken away with being accelerated, causes its heat conduction efficiency to be subject to the inflexible limit of certain degree.Because its capillary structure is single structure, and the back-flow velocity of liquid is comparatively slow, burn phenomenon and make heat pipe easily produce sky in addition.Moreover the cross section of its evaporator section is little, can be little with the area that pyrotoxin directly amplexiforms, and the vapor volume that therefore can generate causes its heat dissipation effectively to be promoted less.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of heat pipe and preparation method thereof, and it improves the flowing velocity of internal gas and increase heat conduction efficiency by evaporator section and the employing of each condensation segment are not waited the girth size design.
A kind of heat pipe preparation method of the present invention, it may further comprise the steps:
A) provide a hollow tube, the inwall of this hollow tube is provided with most grooves;
B) subregion of this hollow tube imposed draw processing, and be formed with a ladder pipe that does not wait the girth size;
C) plug is inserted this ladder pipe inside, and a metal dust is inserted between this ladder pipe and this plug; And
D) will be through step c) this ladder pipe and this plug carry out sintering processing, make the inwall at this ladder pipe be formed with a powder sintered structure.
In order to reach above-mentioned purpose, the invention provides a kind of heat pipe, comprise, comprise a ladder pipe and a powder sintered structure, this ladder inside pipe wall is provided with most grooves and has an evaporator section and two condensation segments, and these two condensation segments are respectively formed at the both sides of this ladder pipe, and this evaporator section is between these two condensation segments, wherein the inside of these two condensation segments and this evaporator section is interconnected, and the perimeter dimension that is made around greater than each this condensation segment of the perimeter dimension that is made around of this evaporator section; This powder sintered structure is combined in the inside of arbitrary this condensation segment.
The present invention also has following beneficial effect, and it can accelerate the back-flow velocity of liquid to prevent the empty phenomenon of burning by the composite capillary tissue of each condensation segment inside.Utilize the cross section of evaporator section large, the area that can directly amplexiform with pyrotoxin is large and have larger vapor volume, and can improve heat dissipation.Sectional area by evaporator section is greater than the sectional area of condensation segment, and the relation that is inversely proportional to of sectional area and flow velocity, when working fluid is heated to be gas by liquid, can play acceleration to this gas mobile.
Description of drawings
Fig. 1 is that heat pipe of the present invention is made flow chart;
Fig. 2 is the hollow tube stereo appearance figure of heat pipe of the present invention;
Fig. 3 is hollow tube stereo appearance figure after shaped device processing of heat pipe of the present invention;
Fig. 4 is that the ladder pipe of heat pipe of the present invention inserts the plug assembled sectional view;
Fig. 5 is ladder pipe and the powder sintered textural association cutaway view of heat pipe of the present invention;
Fig. 6 is heat pipe stereo appearance figure of the present invention;
Fig. 7 is heat pipe assembled sectional view of the present invention;
Fig. 8 is heat pipe of the present invention stereo appearance figure after the pressing element leveling;
Fig. 9 is heat pipe of the present invention assembled sectional view after the pressing element leveling;
Figure 10 is heat pipe of the present invention 10-10 profile after the pressing element leveling;
Figure 11 is heat pipe of the present invention 11-11 profile after the pressing element leveling;
Figure 12 is another embodiment cutaway view of evaporator section of heat pipe of the present invention;
Figure 13 is the another embodiment cutaway view of the evaporator section of heat pipe of the present invention.
Description of reference numerals: 1-heat pipe; The 101-evaporator section; 102,103-condensation segment; The 10-hollow tube; 10a-ladder pipe; The 11-cavity volume; The 12-groove; The 13-raised line; The 20-metal dust; The powder sintered structure of 20a-; The 30-working fluid; The 40-mesh grid; The 45-supporter; The 5-plug.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment and test data, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
Shown in Fig. 1-5, a kind of heat pipe preparation method of the present invention may further comprise the steps:
A) provide a hollow tube 10, the inwall of this hollow tube 10 is provided with most grooves 12; As shown in Figure 2, in this step, this hollow tube 10 can all good material be made by the thermal conductivity such as copper or copper alloy and ductility, but not as limit; The hollow tube 10 of the present embodiment can be a circular straighttube, its inside has a cavity volume 11, internal face at hollow tube 10 offers the most grooves 12 that are parallel to each other, and in office two form a raised line 13 between the adjacent groove 12, and each groove 12 is parallel to each other with the axial line of hollow tube 10, and links up to the other end from an end of hollow tube 10.
B) a part of zone of this hollow tube 10 imposed draw processing, and be formed with a ladder pipe 10a who does not wait the girth size; As shown in Figure 3, in this step, that aforesaid isometrical hollow tube 10 is inserted in a molding tool (figure does not express), with this mould the two side areas of hollow tube 10 is imposed draw processing, and make a ladder pipe 10a of the perimeter dimension that perimeter dimension that zone line is made around is made around greater than two side areas.
C) plug 5 is inserted this ladder pipe 10a inner, and a metal dust 20 is inserted between this ladder pipe 10a and this plug 5; As shown in Figure 4, in this step, the inside of first a plug 5 being inserted the territory, a lateral areas of ladder pipe 10a, after metal dust 20 is inserted between ladder pipe 10a and the plug 5, the metal dust 20 of the present embodiment be the position at ladder pipe 10a in the two side areas of draw processing.
D) will be through step c) this ladder pipe 10a and this plug 5 carry out sintering processing, make the inwall at this ladder pipe 10a be formed with a powder sintered structure 20a.As shown in Figure 5, in this step, ladder pipe 10a and plug 5 are sent into agglomerating plant (figure does not express) together carry out sintering processing, subsequently plug 5 is extracted out from ladder pipe 10a, this moment, 20 of aforesaid metal dusts were attached in the two side areas of ladder pipe 10a, formed a powder sintered structure 20a.
In addition, heat pipe preparation method of the present invention is in steps d) also comprise afterwards a step e), to through steps d) this ladder pipe 10a impose sealing, filling one working fluid 30 and degasification processing.Shown in Fig. 6-7, in this step, first with sealing device (figure does not express) end of ladder pipe 10a is imposed for the first time solder up processing, after fill at ladder pipe 10a inner from a unsealed end working fluid 30, at last the ladder pipe 10a that is filled with working fluid 30 is carried out degasification, and impose for the second time solder up processing; So, can finish the making of heat pipe 1 of the present invention, and the heat pipe 1 of the present embodiment is a circular ladder straight tube.
Further, heat pipe preparation method of the present invention is at step e) more comprise afterwards a step f), to through step e) this ladder pipe 10a impose leveling processing; As shown in Figure 8, in this step, make heat pipe 1 be a flat ladder straight tube with pressing element (figure does not express) to pressing up and down of ladder pipe 10a.
Shown in Fig. 8-11, a kind of heat pipe of the present invention comprises a ladder pipe 10a and a powder sintered structure 20a, and the internal face of ladder pipe 10a offers the most grooves 12 that are parallel to each other, and forms a raised line 13 between the in office two adjacent grooves 12.This ladder pipe 10a has the both sides that an evaporator section 101 and two condensation segments 102,103, two condensation segments 102,103 are respectively formed at ladder pipe 10a, and 101 of evaporator sections are between two condensation segments 102,103; Wherein evaporator section 101 be in order to electronic heating source (figure do not express) thermo-contact.Each condensation segment 102,103 be in order to groups of fins (figure does not express) or the conduction of other radiating subassembly (such as radiating block) heat.Each condensation segment 102,103 and the inside of evaporator section 101 be interconnected, and the perimeter dimension that the perimeter dimension that evaporator section 101 is made around is made around greater than each condensation segment 102 (or 103), the i.e. cross-sectional area that encloses greater than each condensation segment 102,103 of the cross-sectional area that encloses of evaporator section 101.Powder sintered structure 20a is combined in the inside of arbitrary condensation segment 102 (or 103).
In addition, heat pipe of the present invention is except the kenel that can be the various embodiments described above, and its evaporator section 101 can be each condensation segment 102,103 of circle and then is flat; Evaporator section 101 can be each condensation segment 102,103 of flat then for circular; Evaporator section 101 can be each condensation segment 102,103 of semicircle (as shown in figure 12) then for circular; Or evaporator section 101 can be each condensation segment 102,103 of semicircle then for flat.Fill out in each groove 12 of evaporator section 101 in Figure 12 in addition and be furnished with powder sintered structure 20a, the working fluid 30 that stores thus volume is avoided empty generation of burning (dry-out).
As shown in figure 13, the evaporator section 101 of heat pipe 1 of the present invention is except can be the various embodiments described above, also can lay mesh grids 40 each raised line 13 is inner, and push fixingly in these mesh grid 40 inside with a supporter 45, the supporter 45 of the present embodiment is a helical spring; The working fluid 30 that so also can store in evaporator section 101 inside volume prevents empty generation of burning.
Above-described embodiment is described preferred embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (15)
1. heat pipe preparation method, it may further comprise the steps:
A) provide a hollow tube, the inwall of this hollow tube is provided with most grooves;
B) subregion of this hollow tube imposed draw processing, and be formed with a ladder pipe that does not wait the girth size;
C) plug is inserted this ladder pipe inside, and a metal dust is inserted between this ladder pipe and this plug; And
D) will be through step c) this ladder pipe and this plug carry out sintering processing, and be formed with a powder sintered structure at the inwall of this ladder pipe.
2. heat pipe preparation method according to claim 1 is characterized in that: also comprise a step e), to through described steps d) this ladder pipe impose sealing, filling one working fluid and degasification processing.
3. heat pipe preparation method according to claim 2, it is characterized in that: it more comprises a step f), to through described step e) this ladder pipe impose leveling processing.
4. heat pipe comprises:
One ladder pipe, inwall is provided with most grooves, this ladder pipe has an evaporator section and two condensation segments, these two condensation segments are respectively formed at the both sides of this ladder pipe, this evaporator section is between these two condensation segments, wherein the inside of these two condensation segments and this evaporator section is interconnected, and the perimeter dimension that is made around greater than each this condensation segment of the perimeter dimension that is made around of this evaporator section; And
One powder sintered structure is combined in the inside of arbitrary this condensation segment.
5. heat pipe according to claim 4, it is characterized in that: described heat pipe is a circular ladder straight tube.
6. heat pipe according to claim 4, it is characterized in that: described heat pipe is a flat ladder straight tube.
7. heat pipe according to claim 4, it is characterized in that: the axial line of described groove and this hollow tube is parallel to each other.
8. heat pipe according to claim 4, it is characterized in that: described powder sintered structure is attached in each this groove of this evaporator section.
9. heat pipe according to claim 4, it is characterized in that: described powder sintered structure is attached in each this groove of arbitrary this condensation segment.
10. heat pipe according to claim 4 is characterized in that: described evaporator section is circular, semicircle or flat.
11. heat pipe according to claim 10 is characterized in that: described condensation segment is circle or flat.
12. heat pipe according to claim 4 is characterized in that: it more comprises a working fluid, and this working fluid is filled at this ladder pipe inner.
13. heat pipe according to claim 4 is characterized in that: it more comprises a mesh grid, and it is inner that this mesh grid is contained in described evaporator section.
14. heat pipe according to claim 13 is characterized in that: it more comprises a supporter, and this supporter is contained in inner also the supporting of this mesh grid and pastes this mesh grid.
15. heat pipe according to claim 14 is characterized in that: described supporter is a helical spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102177708A CN102909522A (en) | 2011-08-01 | 2011-08-01 | Heat pipe and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102177708A CN102909522A (en) | 2011-08-01 | 2011-08-01 | Heat pipe and method for manufacturing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102909522A true CN102909522A (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102177708A Pending CN102909522A (en) | 2011-08-01 | 2011-08-01 | Heat pipe and method for manufacturing same |
Country Status (1)
| Country | Link |
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| CN (1) | CN102909522A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052730A (en) * | 2017-03-27 | 2017-08-18 | 江苏大学 | A kind of composite trench pipe manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1017453A (en) * | 1972-03-24 | 1977-09-13 | Sidney T. Smith | Traveling wave tube with heat pipe cooling |
| TWM253756U (en) * | 2004-03-02 | 2004-12-21 | Huei-Chiun Shiu | Capillary structure of heat pipe |
| CN1725479A (en) * | 2004-07-21 | 2006-01-25 | 鸿富锦精密工业（深圳）有限公司 | A kind of heat pipe and manufacture method thereof |
| JP2006189232A (en) * | 2005-01-07 | 2006-07-20 | Kobelco & Materials Copper Tube Inc | Heat transfer pipe for heat pipe, and heat pipe |
| CN101464107A (en) * | 2007-12-21 | 2009-06-24 | 富准精密工业(深圳)有限公司 | Hot pipe |
| TW201038898A (en) * | 2009-04-29 | 2010-11-01 | Yeh Chiang Technology Corp | Heat pipe and method for manufacturing the same |
| TWI339256B (en) * | 2007-08-03 | 2011-03-21 | Foxconn Tech Co Ltd | Heat pipe and method of manufacture the same |
-
2011
- 2011-08-01 CN CN2011102177708A patent/CN102909522A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1017453A (en) * | 1972-03-24 | 1977-09-13 | Sidney T. Smith | Traveling wave tube with heat pipe cooling |
| TWM253756U (en) * | 2004-03-02 | 2004-12-21 | Huei-Chiun Shiu | Capillary structure of heat pipe |
| CN1725479A (en) * | 2004-07-21 | 2006-01-25 | 鸿富锦精密工业（深圳）有限公司 | A kind of heat pipe and manufacture method thereof |
| JP2006189232A (en) * | 2005-01-07 | 2006-07-20 | Kobelco & Materials Copper Tube Inc | Heat transfer pipe for heat pipe, and heat pipe |
| TWI339256B (en) * | 2007-08-03 | 2011-03-21 | Foxconn Tech Co Ltd | Heat pipe and method of manufacture the same |
| CN101464107A (en) * | 2007-12-21 | 2009-06-24 | 富准精密工业(深圳)有限公司 | Hot pipe |
| TW201038898A (en) * | 2009-04-29 | 2010-11-01 | Yeh Chiang Technology Corp | Heat pipe and method for manufacturing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052730A (en) * | 2017-03-27 | 2017-08-18 | 江苏大学 | A kind of composite trench pipe manufacturing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Chinese Taiwan New Taipei City Applicant after: Cooler Master International Co., Ltd. Address before: Taiwan County, Taipei, China Applicant before: Xunkai International Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: XUNKAI INTERNATIONAL CO., LTD. TO: COOLER MASTER INTERNATIONAL CO., LTD. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |