CN106705723A - Heat pipe core, heat pipe and sputtering process of heat pipe - Google Patents
Heat pipe core, heat pipe and sputtering process of heat pipe Download PDFInfo
- Publication number
- CN106705723A CN106705723A CN201611123153.0A CN201611123153A CN106705723A CN 106705723 A CN106705723 A CN 106705723A CN 201611123153 A CN201611123153 A CN 201611123153A CN 106705723 A CN106705723 A CN 106705723A
- Authority
- CN
- China
- Prior art keywords
- heat pipe
- sheet metal
- metal net
- sputtering
- net
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention discloses a heat pipe core, a heat pipe and a sputtering process of the heat pipe. The pipe core structure of a traditional heat pipe is improved. A layer of graphene material is arranged on the surface of a metal net attached to the inner wall of a metal pipe shell through sputtering. Due to the ultrahigh heat conductivity of graphene assisting traditional design, the response time in the heat pipe during phase change is promoted greatly, the efficiency of heat conduction is promoted, phase change switching time is shortened, thus the temperature difference of the cold end and the hot end of the heat pipe is reduced, and the heat conduction power is promoted. In addition, detailed quantitative processing is conducted on both the wire diameter and number of the metal net, and thus model selection specification of the heat pipe is detailed.
Description
Technical field
The present invention relates to heat pipe for thermal conductivity technical field, a kind of heat pipe tube core, heat pipe and its sputtering technology are specifically related to.
Background technology
The tube core (liquid-sucking core) of heat pipe is most important for properties of hot pipe, and existing heat pipe (netted tube core) is simple
Wire netting is filled into pipe, it is big that the finished product heat pipe of this structure has a cold warm end temperature difference, efficiency comparison is low and heat transfer power
The technical problem such as loss ratio is high.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of heat pipe tube core, heat pipe and its sputtering technology, greatly carries
The response time in inside heat pipe phase transition process has been risen, the efficiency of heat transfer has been improved, the time of phase change transition has been shortened so that
Heat pipe hot junction further reduces with the temperature difference of cold end, improves heat conduction power.
The technical proposal of the invention is realized in this way：
Sheet metal net more than a kind of heat pipe tube core, including individual layer, double-deck or two-layer, the netting twine table of the sheet metal net
Face sputtering has the sputtered film that at least one of which material is Graphene, and the sheet metal net and sputtered film are installed to the Can of heat pipe
The tubulose circumferentially docked when on inwall.
Further, the sealike colour of the wire netting is 0.025mm-0.045mm, and metal thickness of net is 0.048mm-
0.11mm。
Further, the thickness of the sputtered film is 180nm-220nm.
A kind of heat pipe, including Can, are packaged with hydraulic fluid in the Can, one end of Can is evaporation
End, the other end is condensation end, and heat pipe tube core is pasted with Can inwall.
Further, the Can is in flat tubular or circular tube shaped, and the heat pipe tube core is installed to the metal tube
The flat tubular or circular tube shaped circumferentially docked when on shell inwall.
A kind of sputtering technology of heat pipe, comprises the following steps：
A metal net more than an individual layer, double-deck or two-layer) is formed using mesh wire interlacing；
B the metal net) is cut into sheet metal net；
C) some sheet metal nets that will be cut are placed in special sputtering mould；
D) using Graphene slurry as sputtering target material, by some lamellar golds of the magnetron sputtering apparatus in sputtering mould
Belong to and one layer of sputtered film is sputtered on the netting twine of net；
E the sheet metal net attachment that) will have been sputtered in Can well prepared in advance, the sheet metal net and sputtering
Film is installed to the tubulose circumferentially docked when on the Can inwall of heat pipe；
F) Can and its interior wire netting are sintered, wire netting is combined together with Can inwall.
Further, the thickness of control sputtered film is in 180nm-220nm.
Further, when mesh materials are aluminium, control sintering temperature for 595 DEG C -625 DEG C, sintering time is 20h-
26h, when mesh materials are copper, controls sintering temperature for 835 DEG C -865 DEG C, and sintering time is 18-21h.
Further, the sealike colour of sheet metal net is 0.025mm-0.045mm, and sheet metal thickness of net is
0.048mm-0.11mm。
Further, when sheet metal net conducted power is within 5W, its mesh number is controlled to 40-85, or sheet metal net
When conducted power is within 15W, its mesh number is controlled to 50-180.
The beneficial effects of the invention are as follows：The present invention provides a kind of heat pipe tube core, heat pipe and its sputtering technology, to conventional heat pipe
Tube core structure improved, on Can inwall attach metal net surface sputtered a layer graphene material, by
It is hot in the ultra-high conducting of Graphene, when aiding in traditional design and being greatly improved the response in inside heat pipe phase transition process
Between, the efficiency of heat transfer is improved, shorten the time of phase change transition so that further contracted with the temperature difference of cold end in heat pipe hot junction
It is small, lift heat conduction power；And the line footpath and mesh number to wire netting have all done detailed quantification treatment, so as to refine the choosing of heat pipe
Type specification.
Brief description of the drawings
Fig. 1 is heat pipe tube core structure schematic diagram in the present invention；
Fig. 2 is heat pipe structure schematic diagram in the present invention；
Fig. 3 is heat pipe sputtering technology flow chart of the present invention.
Specific embodiment
In order to be more clearly understood that technology contents of the invention, described in detail especially exemplified by following examples, its purpose is only
It is to be best understood from the protection domain that present disclosure is not intended to limit the present invention.Each part in the structure of embodiment accompanying drawing
Do not scaled by normal rates, therefore do not represent the actual relative size of each structure in embodiment.
As shown in figure 1, sheet metal net more than a kind of heat pipe tube core 1, including individual layer, double-deck or two-layer, the lamellar gold
The netting twine surface sputtering for belonging to net has the sputtered film that at least one of which material is Graphene, and the sheet metal net and sputtered film are installed to heat
The tubulose circumferentially docked when on the Can inwall of pipe.So, the metal netlist by being attached on Can inwall
Face sputters a layer graphene material, forms sputtered film, because the ultra-high conducting of Graphene is hot, aids in traditional design great
The response time in inside heat pipe phase transition process is improved, the efficiency of heat transfer is improved, the time of phase change transition is shortened, made
Obtain heat pipe hot junction further to be reduced with the temperature difference of cold end, lift heat conduction power.
Preferably, the sealike colour of the wire netting is 0.025mm-0.045mm, and metal thickness of net is 0.048mm-
0.11mm.This is, the line footpath of wire netting and the preferred scheme of thickness, but not limited to this, and the thickness can preferably be applied to ultra-thin
Heat pipe.
The thickness of the sputtered film is 180nm-220nm.This is the present embodiment preferred embodiment, can not only improve heat
The efficiency of the heat transfer of pipe, lifts heat conduction power, can also control the lifting of cost, meets the application of ultrathin heat pipe.
A kind of heat pipe, referring to Fig. 1 and Fig. 2, including Can 2, is packaged with hydraulic fluid, metal tube in the Can
One end of shell is evaporation ends, and the other end is condensation end, and heat pipe tube core 1 is pasted with Can inwall, and the heat pipe tube core is heat
Sheet metal the net more than capillary structure of pipe, including individual layer, double-deck or two-layer, the netting twine surface sputtering of the sheet metal net has
At least one of which material is the sputtered film of Graphene, when the sheet metal net and sputtered film are installed on the Can inwall of heat pipe
The tubulose for circumferentially docking.Because the tube core structure of heat pipe sputters the sputtered film of a layer graphene material for metal net surface, greatly
The big effective power that improve heat pipe, improves the heat conduction power of heat pipe.
Preferably, the Can is in flat tubular or circular tube shaped, and the heat pipe tube core is installed to the Can
The flat tubular or circular tube shaped circumferentially docked when on inwall.Flat hot pipe can leading as the heat radiation module in notebook computer
Thermal element, meets the need for notebook computer develops towards light, thin, small direction.
A kind of sputtering technology of heat pipe, referring to Fig. 3, comprises the following steps：
A metal net more than an individual layer, double-deck or two-layer) is formed using mesh wire interlacing；
B the metal net) is cut into sheet metal net；
C) some sheet metal nets that will be cut are placed in special sputtering mould；
D) using Graphene slurry as sputtering target material, by some lamellar golds of the magnetron sputtering apparatus in sputtering mould
Belong to and one layer of sputtered film is sputtered on the netting twine of net；
E the sheet metal net attachment that) will have been sputtered in Can well prepared in advance, the sheet metal net and sputtering
Film is installed to the tubulose circumferentially docked when on the Can inwall of heat pipe；
F) Can and its interior wire netting are sintered, wire netting is combined together with Can inwall.
Preferably, the thickness of control sputtered film is in 180nm-220nm.
Preferably, when mesh materials are aluminium, control sintering temperature for 595 DEG C -625 DEG C, sintering time is 20h-26h,
When mesh materials are copper, control sintering temperature for 835 DEG C -865 DEG C, sintering time is 18-21h.
Preferably, the sealike colour of sheet metal net is 0.025mm-0.045mm, and sheet metal thickness of net is 0.048mm-
0.11mm。
Preferably, when sheet metal net conducted power is within 5W, its mesh number is controlled to 40-85, or sheet metal net is passed
When leading power within 15W, its mesh number is controlled to 50-180.
To sum up, the present invention provides a kind of heat pipe tube core, heat pipe and its sputtering technology, and the tube core structure to conventional heat pipe is carried out
Improve, the metal net surface attached on Can inwall has sputtered a layer graphene material, due to the superelevation of Graphene
Thermal conductivity, aids in the response time that traditional design is greatly improved in inside heat pipe phase transition process, improves heat transfer
Efficiency, shorten the time of phase change transition so that heat pipe hot junction further reduces with the temperature difference of cold end, lifted heat conduction power；
And the line footpath and mesh number to wire netting have all done detailed quantification treatment, so as to refine the type selecting specification of heat pipe.
Above example is referring to the drawings, to a preferred embodiment of the present invention will be described in detail.Those skilled in the art
Member by carrying out to above-described embodiment modification or change on various forms, but without departing substantially from essence of the invention in the case of, all
Fall within the scope and spirit of the invention.
Claims (10)
1. a kind of heat pipe tube core (1), it is characterised in that：Including sheet metal net more than individual layer, double-deck or two-layer, the lamellar gold
The netting twine surface sputtering for belonging to net has the sputtered film that at least one of which material is Graphene, and the sheet metal net and sputtered film are installed to heat
The tubulose circumferentially docked when on the Can inwall of pipe.
2. heat pipe tube core according to claim 1, it is characterised in that：The sealike colour of the wire netting is 0.025mm-
0.045mm, metal thickness of net is 0.048mm-0.11mm.
3. heat pipe tube core according to claim 1, it is characterised in that：The thickness of the sputtered film is 180nm-220nm.
4. a kind of heat pipe, including Can (2), is packaged with hydraulic fluid in the Can, one end of Can is steaming
Originator, the other end is condensation end, it is characterised in that：The heat described in claim any one of 1-3 is pasted with Can inwall
Pipe tube core.
5. heat pipe according to claim 4, it is characterised in that：The Can is described in flat tubular or circular tube shaped
Heat pipe tube core is installed to the flat tubular or circular tube shaped circumferentially docked when on the Can inwall.
6. a kind of sputtering technology of heat pipe, it is characterised in that：Comprise the following steps：
A metal net more than an individual layer, double-deck or two-layer) is formed using mesh wire interlacing；
B the metal net) is cut into sheet metal net；
C) some sheet metal nets that will be cut are placed in special sputtering mould；
D) using Graphene slurry as sputtering target material, by some sheet metal nets of the magnetron sputtering apparatus in sputtering mould
Netting twine on sputter one layer of sputtered film；
E the sheet metal net attachment that) will have been sputtered is arrived in Can well prepared in advance, and the sheet metal net and sputtered film are pacified
It is attached to the tubulose circumferentially docked when on the Can inwall of heat pipe；
F) Can and its interior wire netting are sintered, wire netting is combined together with Can inwall.
7. the sputtering technology of heat pipe according to claim 6, it is characterised in that：The thickness of sputtered film is controlled in 180nm-
220nm。
8. the sputtering technology of heat pipe according to claim 6, it is characterised in that：When mesh materials are aluminium, control sintering
Temperature is 595 DEG C -625 DEG C, and sintering time is 20h-26h, and when mesh materials are copper, it is 835 DEG C -865 to control sintering temperature
DEG C, sintering time is 18-21h.
9. the sputtering technology of heat pipe according to claim 6, it is characterised in that：The sealike colour of sheet metal net is
0.025mm-0.045mm, sheet metal thickness of net is 0.048mm-0.11mm.
10. the sputtering technology of heat pipe according to claim 6, it is characterised in that：Sheet metal net conducted power be 5W with
When interior, when its mesh number is controlled to 40-85, or sheet metal net conducted power within 15W, its mesh number is controlled to 50-180.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123153.0A CN106705723A (en) | 2016-12-08 | 2016-12-08 | Heat pipe core, heat pipe and sputtering process of heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611123153.0A CN106705723A (en) | 2016-12-08 | 2016-12-08 | Heat pipe core, heat pipe and sputtering process of heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106705723A true CN106705723A (en) | 2017-05-24 |
Family
ID=58936324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611123153.0A Pending CN106705723A (en) | 2016-12-08 | 2016-12-08 | Heat pipe core, heat pipe and sputtering process of heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106705723A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238305A (en) * | 2017-06-22 | 2017-10-10 | 任高廷 | A kind of three sections of two-chamber tri-state phase transformation superconduction heat exchange pipes |
| CN112126928A (en) * | 2020-09-10 | 2020-12-25 | 安徽德诠新材料科技有限公司 | Method for preparing heat pipe by vapor deposition |
| CN112229254A (en) * | 2020-09-23 | 2021-01-15 | 中国原子能科学研究院 | Independent trunk forming liquid absorption core |
| EP3660389A4 (en) * | 2017-07-27 | 2021-03-31 | Huzhou Mingshuo Optoelectronic Technology Ltd. | Intelligently-connected vehicle led headlight using graphene |
| CN113597194A (en) * | 2019-06-28 | 2021-11-02 | 河南烯力新材料科技有限公司 | Heat conduction structure, manufacturing method thereof and mobile device |
| WO2024092617A1 (en) * | 2022-11-03 | 2024-05-10 | Nokia Shanghai Bell Co., Ltd. | Heat exchange apparatus and manufacturing method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472556A (en) * | 1977-11-19 | 1979-06-11 | Sumitomo Electric Ind Ltd | Heat-pipe manufacturing method |
| CN1847770A (en) * | 2005-04-15 | 2006-10-18 | 鸿富锦精密工业（深圳）有限公司 | Heat pipe and its making process |
| CN202329314U (en) * | 2011-06-20 | 2012-07-11 | 北京芯海节能科技有限公司 | Improved capillary structure for heat pipe |
| CN103542751A (en) * | 2012-07-09 | 2014-01-29 | 富瑞精密组件（昆山）有限公司 | Heat pipe |
| CN103625029A (en) * | 2013-11-25 | 2014-03-12 | 许子寒 | Graphene heat-conducting device |
| CN203719484U (en) * | 2013-09-08 | 2014-07-16 | 中国科学院青岛生物能源与过程研究所 | Soaking plate based on artificial graphite film |
| CN104647831A (en) * | 2015-02-03 | 2015-05-27 | 淄博博旭再生能源科技有限公司 | Corrosion-resisting air-conditioning fin material used for marine product cultivation workshop and preparation method thereof |
| WO2015105519A1 (en) * | 2014-01-07 | 2015-07-16 | Zalman Tech Co., Ltd. | Evaporating device having porous media and method for manufacturing thereof |
| CN105039910A (en) * | 2015-08-14 | 2015-11-11 | 陕西煤业化工技术研究院有限责任公司 | Flexible transparent conducting thin film |
| CN205313659U (en) * | 2015-08-06 | 2016-06-15 | 常州富烯科技股份有限公司 | Vacuum sputtering equipment and composite aluminum foil who obtains with its preparation |
| CN205579718U (en) * | 2016-04-28 | 2016-09-14 | 厦门烯成石墨烯科技有限公司 | Floor heating structure based on graphite alkene heat -conducting plate |
| CN206321106U (en) * | 2016-12-08 | 2017-07-11 | 苏州鸿凌达电子科技有限公司 | Heat pipe tube core, heat pipe |
-
2016
- 2016-12-08 CN CN201611123153.0A patent/CN106705723A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472556A (en) * | 1977-11-19 | 1979-06-11 | Sumitomo Electric Ind Ltd | Heat-pipe manufacturing method |
| CN1847770A (en) * | 2005-04-15 | 2006-10-18 | 鸿富锦精密工业（深圳）有限公司 | Heat pipe and its making process |
| CN202329314U (en) * | 2011-06-20 | 2012-07-11 | 北京芯海节能科技有限公司 | Improved capillary structure for heat pipe |
| CN103542751A (en) * | 2012-07-09 | 2014-01-29 | 富瑞精密组件（昆山）有限公司 | Heat pipe |
| CN203719484U (en) * | 2013-09-08 | 2014-07-16 | 中国科学院青岛生物能源与过程研究所 | Soaking plate based on artificial graphite film |
| CN103625029A (en) * | 2013-11-25 | 2014-03-12 | 许子寒 | Graphene heat-conducting device |
| WO2015105519A1 (en) * | 2014-01-07 | 2015-07-16 | Zalman Tech Co., Ltd. | Evaporating device having porous media and method for manufacturing thereof |
| CN104647831A (en) * | 2015-02-03 | 2015-05-27 | 淄博博旭再生能源科技有限公司 | Corrosion-resisting air-conditioning fin material used for marine product cultivation workshop and preparation method thereof |
| CN205313659U (en) * | 2015-08-06 | 2016-06-15 | 常州富烯科技股份有限公司 | Vacuum sputtering equipment and composite aluminum foil who obtains with its preparation |
| CN105039910A (en) * | 2015-08-14 | 2015-11-11 | 陕西煤业化工技术研究院有限责任公司 | Flexible transparent conducting thin film |
| CN205579718U (en) * | 2016-04-28 | 2016-09-14 | 厦门烯成石墨烯科技有限公司 | Floor heating structure based on graphite alkene heat -conducting plate |
| CN206321106U (en) * | 2016-12-08 | 2017-07-11 | 苏州鸿凌达电子科技有限公司 | Heat pipe tube core, heat pipe |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238305A (en) * | 2017-06-22 | 2017-10-10 | 任高廷 | A kind of three sections of two-chamber tri-state phase transformation superconduction heat exchange pipes |
| EP3660389A4 (en) * | 2017-07-27 | 2021-03-31 | Huzhou Mingshuo Optoelectronic Technology Ltd. | Intelligently-connected vehicle led headlight using graphene |
| CN113597194A (en) * | 2019-06-28 | 2021-11-02 | 河南烯力新材料科技有限公司 | Heat conduction structure, manufacturing method thereof and mobile device |
| CN112126928A (en) * | 2020-09-10 | 2020-12-25 | 安徽德诠新材料科技有限公司 | Method for preparing heat pipe by vapor deposition |
| CN112126928B (en) * | 2020-09-10 | 2023-06-02 | 安徽德诠新材料科技有限公司 | Method for preparing heat pipe by vapor deposition |
| CN112229254A (en) * | 2020-09-23 | 2021-01-15 | 中国原子能科学研究院 | Independent trunk forming liquid absorption core |
| CN112229254B (en) * | 2020-09-23 | 2021-11-02 | 中国原子能科学研究院 | Independent trunk forming liquid absorption core |
| WO2024092617A1 (en) * | 2022-11-03 | 2024-05-10 | Nokia Shanghai Bell Co., Ltd. | Heat exchange apparatus and manufacturing method thereof |
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Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |