CN105841535A - Sectional composite-structure panel heat transfer tube and manufacture method thereof - Google Patents
Sectional composite-structure panel heat transfer tube and manufacture method thereof Download PDFInfo
- Publication number
- CN105841535A CN105841535A CN201610331232.4A CN201610331232A CN105841535A CN 105841535 A CN105841535 A CN 105841535A CN 201610331232 A CN201610331232 A CN 201610331232A CN 105841535 A CN105841535 A CN 105841535A
- Authority
- CN
- China
- Prior art keywords
- heat transfer
- groove
- transfer tube
- composite construction
- copper
- 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
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/04—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
- F28F2275/067—Fastening; Joining by welding by laser welding
Abstract
The invention provides a sectional composite-structure panel heat transfer tube and a laser manufacture method thereof. The sectional composite-structure panel heat transfer tube comprises a copper upper cover plate, a copper lower cover plate and a middle copper framework, wherein one end of the panel heat transfer tube is an evaporation section; the other end of the panel heat transfer tube is a condensation section; and the middle section of the panel heat transfer tube is a heat isolation section; groove structures are axially formed in the inner wall of the lower cover plate; the groove structures are machined into composite-structure grooves through laser according to heat transfer tube working principles; and laser machining has the advantages of being non-contact, environment-friendly, convenient and the like. The composite-structure grooves has the arrangement that the evaporation section is provided with groove pin-fin structures; the condensation section is provided with groove pin-fin array structures; and the heat isolation section is provided with pure groove structures. The pin-fin structures are additionally arranged, so that the boiling performance of the evaporation section can be improved by increasing an effective gasification core number, and a working medium flow equalizing effect is realized; and the condensation performance is improved by the pin-fin array structures through decreasing the thickness of a liquid film. By adopting the sectional composite-structure panel heat transfer tube, according to the heat transfer tube working principles, when stronger capillary force is provided, boiling and condensation of a working medium in the tube and the flow equalizing of the working medium in the tube are promoted, so that the heat transfer performance of the heat transfer tube is further improved.
Description
Technical field: the present invention relates to a kind of heat pipe and preparation method thereof, is specially a kind of segmented composite construction flat late heat transfer pipe
And laser preparation method.
Background technology:
Along with the power of electronic chip constantly increase, volume constantly diminishes, the heat dissipation problem of electronic product becomes more and more important.
Traditional heat dissipating method can not meet the most far away the cooling requirements of the electronic product of high heat flux, heat pipe based on phase-change heat transfer
The thermal conductivity factor high because of it and good isothermal and the advantage of passive heat transfer, be current high heat flux electronic product radiating
Promising approach.
The heat pipe of electronic device substantially can be divided into plough groove type and the big class of sintered type two at present.Channel heat pipe is by machining
With the groove that the manufacturing process such as etching process certain cross sectional shape in heat pipe inner wall face, the capillary force utilizing groove structure to produce allows
Liquid working substance refluxes；Sintered heat pipe is at the particle of heat pipe inner wall one layer of micro/nano level of sintering, is carried by the hole between particle
Capillary force for working medium backflow.Whether plough groove type or sintered heat pipe, the acquisition purpose of its liquid sucting core structure is provided to carry
For stronger capillary force and increase heat exchange area, but the lifting of capillary force is limited after all, and according to the operation principle of heat pipe
The groundwork situation being appreciated that different section is different, so design heat pipe should consider the evaporator section, absolutely of heat pipe
Hot arc and the operation principle of condensation segment and state.In heat pipe, the processing method of liquid sucting core structure groove is broadly divided into cutting method, and line is cut
Cut method, electrolysis etc..Cutting method has and is likely to result in more greatly heat pipe wall and splits and the infringement such as tool wear, and cannot disposably add
Work goes out required composite construction groove；Electric spark method efficiency is low, and tool-electrode can constantly consume, therefore cannot opposite heat tube internal face
Persistently process；The solution of electrochemical process has pollution, and the groove obtained is relatively smooth, is unfavorable for increasing effective vaporization nucleus calculation.
Laser Processing has the biggest development potentiality in micro-nano technology field.
Sharply increase in heat flow density, under the conditions of heat-dissipating space small etc., it is necessary for improving adopting heat pipes for heat transfer performance, and
The heat transfer property of heat pipe is mainly determined by liquid sucting core structure, exploitation be not limited to provide strong capillary novel liquid sucting core structure and
Laser preparation method is a trend of development heat pipe.
Summary of the invention
It is an object of the invention to solve the problem of above-mentioned existence, consider the operation principle of heat pipe, relatively strong capillary is being provided
While, promote boiling condensation and the working medium current-sharing of intraductal working medium, propose a kind of segmented strengthening adopting heat pipes for heat transfer performance and answer
Close structure flat late heat transfer pipe and laser preparation method thereof.
Described method is simple to operate, and can be obtained the different characteristic structure of heat pipe three sections by disposable processing simultaneously.
Technical scheme realizes as follows:
(1) the smooth surface copper upper cover plate 1 after cleaning, drying is obtained super hydrophobic surface through low-surface energy substance process,
Utilize line cutting technology to cut out an one end and there is the copper framework 2 of small gap (1*1mm).
(2) according to the processing characteristic of multifunction laser, first drawn by the difference of different segment structures and laser machine line accordingly
Lu Tu, is placed in the smooth copper lower cover 3 after cleaning, drying on laser works platform, suitable to good Jiao selection
The condition that machined parameters and auxiliary are blown, processes the evaporator section pin wing of certain size on lower cover
(0.2*0.2*0.2mm) structure, condensation segment pin wing (0.2*0.2*0.2mm) array structure and adiabatic section groove
(0.2*0.2mm) structure.
(3) then on the basis of step 3, draw the groove structure processing line figure of correspondence, go out in preparatory processing
In the case of between pin fin structure and mating with adiabatic section groove structure, lower cover processes a scale further
Very little groove (0.2*0.3mm), thus obtain composite construction groove.
(4) by two cover plates of a size for appearance and size (thick 1mm) across as they appearance and sizes, and two topcoating
The middle copper framework 2 (thick 1mm) being wiped with solder(ing) paste is stacked together, utilize after fixture is fixing high temperature furnace to its by
Step heats up and heats until reaching the operating temperature of solder(ing) paste, treats that solder(ing) paste melts and Uniform Flow is distributed in all contacts
Behind face, stop having heated the welded seal of heat pipe.
(5) the breach elder generation opposite heat tube utilizing evacuation priming device to pass through to reserve carries out vacuumizing process, when vacuum reaches institute
Stopping when needing to ask vacuumizing, the valve opening liquid injection pipe injects a certain amount of liquid working substance to heat pipe, will lack subsequently
Mouth good seal, completes the preparation of segmented composite construction flat late heat transfer pipe.
The beneficial effects of the present invention is: on the basis of groove structure, be respectively directed to heat pipe evaporator section and condensation segment adds pin wing
Structure and pin wing array structure.Groove structure can also increase heat exchange surface area while providing the capillary force of working medium backflow, and pin wing/
The thickness of liquid film of effective vaporization nucleus calculation and thinning condensation segment that pin wing array structure can increase evaporator section reduces thermal resistance to promote boiling
Rise condensation performance and current-sharing working medium, thus improve the heat transfer property of heat pipe.
According to the process principle of multifunction laser, utilize its convenient, efficient, safe advantage, finish processing line figure and just may be used
Disposably to process designed structure at copper coin surface diverse location, and the ablation effect of laser can make surface have simultaneously
Certain roughness, it is possible to roll up effective nucleus of boiling and capillary force, thus promote properties of hot pipe further.
Accompanying drawing explanation
Fig. 1 is heat pipe adiabatic section of the present invention structural representation
Fig. 2 is heat pipe condenser section structural representation of the present invention
Fig. 3 is heat pipe evaporator section structural representation of the present invention
Fig. 4 is that heat pipe of the present invention assembles schematic diagram
Fig. 5 is heat pipe schematic diagram of the present invention
In figure: 1, copper upper cover plate, 2, middle copper framework, 3, copper lower cover, 4, evaporator section, 5, condensation segment, 6, adiabatic
Section, 7, groove structure, 8, pin fin structure.
Detailed description of the invention
Embodiment:
The invention provides segmented composite construction flat late heat transfer pipe and laser preparation method thereof, its key step is as follows:
Described segmented composite construction flat late heat transfer pipe, including a copper upper cover plate 1, middle copper framework 2 and copper lower cover 3, should
One end of flat-plate heat pipe be evaporator section 4, the other end be condensation segment 6, middle for adiabatic section 5, described lower cover internal face is vertically
Being machined with groove structure 7, described groove structure is processed into composite construction groove, described heat pipe evaporator section 4 by heat pipe operation principle
For plough groove type pin fin structure, described condensation segment 6 be plough groove type pin wing array structure, described adiabatic section 5 be pure groove structure, with
This improves heat pipe boiling condensation performance and current-sharing working medium, thus promotes heat pipe overall performance.
Smooth surface copper upper cover plate 1 after cleaning, drying is processed through low-surface energy substance and obtains super hydrophobic surface, utilize line
Cutting technique cuts out an one end and has the copper framework 2 of small gap.
According to the processing characteristic of multifunction laser, first drawn by the feature of different segment structures and laser machine line map accordingly,
Smooth copper lower cover 3 after cleaning, drying is placed on laser works platform, to good Jiao and select suitable machined parameters (power
20W, sweep speed 300mm/s, frequency 20kHz) and auxiliary blow under conditions of, lower cover processes certain size
Evaporator section pin wing (0.2*0.2*0.2mm) structure, condensation segment pin wing (0.2*0.2*0.2mm) array structure and adiabatic section ditch
Groove (0.2*0.2mm) structure.
Then on the basis of step (2), the groove structure processing line figure of correspondence is drawn, at the pin wing knot that preparatory processing goes out
In the case of between structure and mating with adiabatic section groove structure, lower cover processes the groove of certain size further
(0.2*0.3mm), thus obtain composite construction groove.
By two cover plates of a size for appearance and size (thick 1mm) across as they appearance and sizes, and two sides is coated with
The middle copper framework 2 of solder(ing) paste is stacked together, utilizes heat gun progressively to heat up heating to it until reaching weldering after fixture is fixing
The operating temperature of tin cream, after solder(ing) paste melts and Uniform Flow is distributed in all contact surfaces, stops having heated the welding of heat pipe
Seal.
The breach elder generation opposite heat tube utilizing evacuation priming device to pass through to reserve carries out vacuumizing process, when vacuum reaches necessary requirement
Time stop vacuumizing, open the valve of liquid injection pipe and inject a certain amount of liquid working substance to heat pipe, subsequently by breach good seal, complete
The preparation of segmented composite construction flat late heat transfer pipe.
The present invention proposes segmented composite construction flat late heat transfer pipe and achieves its laser and prepare, function admirable, letter easy to use
List and environmental protection.First, segmented composite construction promotes heat pipe entirety by the boiling condensation performance and current-sharing working medium improving heat pipe
Performance；Secondly, multifunction laser can process at copper coin surface diverse location the most simultaneously have the imbibition of different characteristic
Cored structure, and owing to the ablation effect of laser makes finished surface have certain roughness, further enhancing the hair of heat pipe
Thin reflux capability and add effective vaporization nucleus calculation, further increases the heat-transfer capability of heat pipe.
Claims (5)
1. segmented composite construction flat late heat transfer pipe, including a copper upper cover plate (1), a copper lower cover (3) and middle copper
Framework (2), the internal face low-surface energy substance of described upper cover plate (1) processes, and described middle copper framework (2) is cut with line
Mode obtain, described lower cover (3) is divided into three sections, one end be evaporator section (4), the other end be condensation segment (5), interlude
For adiabatic section (6), it is characterised in that described lower cover (3) inwall is vertically with laser machining out groove structure (7), described
Groove structure (7) is processed into composite construction groove by heat pipe operation principle, and composite construction groove both provided capillary force also to promote working medium
Boiling condensation and current-sharing.
Segmented composite construction flat late heat transfer pipe the most according to claim 1, it is characterised in that: include following key step；
(1) the smooth surface copper upper cover plate 1 after cleaning, drying is obtained super hydrophobic surface through low-surface energy substance process, utilize
Line cutting technology cuts out an one end and has the copper framework 2 of small gap.
(2) according to the processing characteristic of multifunction laser, first drawn corresponding manuscript by the feature of different segment structures, will clean
Smooth copper lower cover 3 after drying is placed on laser works platform, to good Jiao and select suitable machined parameters and auxiliary
Help the condition of air blowing, lower cover processes the evaporator section pin fin structure of certain size, condensation segment pin wing array structure
With adiabatic section groove structure.
(3) then on the basis of step (2), draw groove structure manuscript, between the pin fin structure that preparatory processing goes out also
In the case of mating with adiabatic section groove structure, lower cover processes the groove of certain size further, thus obtains
To composite construction groove.
(4) by two cover plates of a size for appearance and size across as they appearance and sizes, and two sides is coated with solder(ing) paste
Middle copper framework 2 is stacked together, utilizes high temperature furnace progressively to heat up heating to it until reaching scolding tin after fixture is fixing
The operating temperature of cream, after solder(ing) paste melts and Uniform Flow is distributed in all contact surfaces, stops having heated heat pipe
Welded seal.
(5) the breach elder generation opposite heat tube utilizing evacuation priming device to pass through to reserve carries out vacuumizing process, when vacuum reaches required
Stopping when asking vacuumizing, the valve opening liquid injection pipe injects a certain amount of liquid working substance to heat pipe, is sealed by breach subsequently
Good, complete the preparation of segmented composite construction flat late heat transfer pipe.
Segmented composite construction flat late heat transfer pipe the most according to claim 1, it is characterised in that: described groove structure (7)
Cross sectional shape can be the regular shapes such as rectangle, trapezoidal and triangle, or other are irregularly shaped.
Segmented composite construction flat late heat transfer pipe the most according to claim 3, it is characterised in that: described groove structure (7)
For composite construction groove, heat pipe evaporator section (4) is ditch groove pin fin structure, and condensation segment (5) is ditch groove pin wing array structure, absolutely
Hot arc (6) is pure groove structure.
Segmented composite construction flat late heat transfer pipe the most according to claim 4, it is characterised in that: described pin fin structure
(8) height is not more than the height of described groove structure (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331232.4A CN105841535A (en) | 2016-05-14 | 2016-05-14 | Sectional composite-structure panel heat transfer tube and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331232.4A CN105841535A (en) | 2016-05-14 | 2016-05-14 | Sectional composite-structure panel heat transfer tube and manufacture method thereof |
Publications (1)
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| CN105841535A true CN105841535A (en) | 2016-08-10 |
Family
ID=56592781
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| CN201610331232.4A Pending CN105841535A (en) | 2016-05-14 | 2016-05-14 | Sectional composite-structure panel heat transfer tube and manufacture method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409792A (en) * | 2016-10-18 | 2017-02-15 | 武汉征原电气有限公司 | Water cooling plate radiator and the preparation technology for the same |
| CN106500533A (en) * | 2016-10-31 | 2017-03-15 | 东莞仁海科技股份有限公司 | A kind of ultrathin heat pipe laser preparation method |
| CN106802095A (en) * | 2017-01-20 | 2017-06-06 | 中国石油大学(华东) | A kind of microchannel cooling |
| CN106839836A (en) * | 2016-11-29 | 2017-06-13 | 浙江大学 | A kind of method that flat micro-channel adopting heat pipes for heat transfer performance is improved using complementary passage |
| CN109891178A (en) * | 2017-09-19 | 2019-06-14 | 华为技术有限公司 | The slim soaking plate formed by Sheet Metal Forming Technology |
| CN109959289A (en) * | 2019-03-15 | 2019-07-02 | 华南理工大学 | A kind of ultra-thin low-grade fever tube preparation method of antigravity |
| CN110638101A (en) * | 2019-09-30 | 2020-01-03 | 深圳麦克韦尔科技有限公司 | Atomizer and electronic atomization device |
| CN110953914A (en) * | 2018-09-27 | 2020-04-03 | 龙大昌精密工业有限公司 | Evaporator structure |
| CN112601418A (en) * | 2020-11-20 | 2021-04-02 | 上海航天控制技术研究所 | Integrated heat conduction microstructure of space ray apparatus structure |
| CN112944965A (en) * | 2021-02-20 | 2021-06-11 | 广东工业大学 | High-thermal-conductivity soaking plate and preparation method thereof |
| CN113744901A (en) * | 2021-08-09 | 2021-12-03 | 中国原子能科学研究院 | Hot plate reactor core heat exchanger, nuclear reactor equipment and manufacturing method |
| CN114466557A (en) * | 2021-08-16 | 2022-05-10 | 荣耀终端有限公司 | Housing for electronic device, and method for manufacturing housing for electronic device |
| CN114894016A (en) * | 2022-04-29 | 2022-08-12 | 广州大学 | Metal wire array liquid absorption core one-way heat pipe and manufacturing method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409792A (en) * | 2016-10-18 | 2017-02-15 | 武汉征原电气有限公司 | Water cooling plate radiator and the preparation technology for the same |
| CN106500533A (en) * | 2016-10-31 | 2017-03-15 | 东莞仁海科技股份有限公司 | A kind of ultrathin heat pipe laser preparation method |
| CN106839836A (en) * | 2016-11-29 | 2017-06-13 | 浙江大学 | A kind of method that flat micro-channel adopting heat pipes for heat transfer performance is improved using complementary passage |
| CN106802095A (en) * | 2017-01-20 | 2017-06-06 | 中国石油大学(华东) | A kind of microchannel cooling |
| CN109891178A (en) * | 2017-09-19 | 2019-06-14 | 华为技术有限公司 | The slim soaking plate formed by Sheet Metal Forming Technology |
| CN110953914A (en) * | 2018-09-27 | 2020-04-03 | 龙大昌精密工业有限公司 | Evaporator structure |
| CN109959289A (en) * | 2019-03-15 | 2019-07-02 | 华南理工大学 | A kind of ultra-thin low-grade fever tube preparation method of antigravity |
| CN110638101A (en) * | 2019-09-30 | 2020-01-03 | 深圳麦克韦尔科技有限公司 | Atomizer and electronic atomization device |
| CN112601418A (en) * | 2020-11-20 | 2021-04-02 | 上海航天控制技术研究所 | Integrated heat conduction microstructure of space ray apparatus structure |
| CN112601418B (en) * | 2020-11-20 | 2022-10-18 | 上海航天控制技术研究所 | Integrated heat conduction microstructure of space ray apparatus structure |
| CN112944965A (en) * | 2021-02-20 | 2021-06-11 | 广东工业大学 | High-thermal-conductivity soaking plate and preparation method thereof |
| CN112944965B (en) * | 2021-02-20 | 2023-10-24 | 广东工业大学 | High-heat-conductivity vapor chamber and preparation method thereof |
| CN113744901A (en) * | 2021-08-09 | 2021-12-03 | 中国原子能科学研究院 | Hot plate reactor core heat exchanger, nuclear reactor equipment and manufacturing method |
| CN114466557A (en) * | 2021-08-16 | 2022-05-10 | 荣耀终端有限公司 | Housing for electronic device, and method for manufacturing housing for electronic device |
| CN114894016A (en) * | 2022-04-29 | 2022-08-12 | 广州大学 | Metal wire array liquid absorption core one-way heat pipe and manufacturing method thereof |
| CN114894016B (en) * | 2022-04-29 | 2023-09-15 | 广州大学 | Metal wire array wick unidirectional heat pipe and manufacturing method thereof |
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