CN105865243A - Novel flat plate thiele tube and preparation method thereof - Google Patents
Novel flat plate thiele tube and preparation method thereof Download PDFInfo
- Publication number
- CN105865243A CN105865243A CN201610331231.XA CN201610331231A CN105865243A CN 105865243 A CN105865243 A CN 105865243A CN 201610331231 A CN201610331231 A CN 201610331231A CN 105865243 A CN105865243 A CN 105865243A
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- Prior art keywords
- plate
- heat pipe
- tube
- upper plate
- lower plate
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Laser Beam Processing (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Laser Surgery Devices (AREA)
Abstract
The invention provides a novel flat plate thiele tube and discloses a laser preparation method thereof. The novel flat plate thiele tube comprises an upper plate, a lower plate and a liquid injecting exhaust pipe; all the assemblies are made from red copper materials; the lower plate of the flat plate heat pipe is an evaporation segment; the upper plate of the flat plate heat pipe is a condensation segment; a middle segment is a heat insulating segment; a groove structure is machined on the inner wall of each of the upper plate and the lower plate, and the groove structures form groove type composite needle fin structures through laser processing on the basis of a heat pipe work principle; and the surfaces of the copper plates can be sequentially processed through laser etching to obtain micro structures in complicated shapes and with different characteristics. According to the novel flat plate thiele tube, the boiling performance and the heat pipe starting performance of the evaporation segment and the steam cooling performance of the condensation segment can be improved, the needle fin structures can strengthen the heat pipe strength and reduce the interface shearing force and is favorable for that condensation liquid of the upper plate fast flows back and drips to the lower plate to form circulation, and the heat transfer performance of the heat pipe is improved.
Description
Technical field: the present invention relates to a kind of heat pipe and preparation method thereof, specially plough groove type compound needle fin structure flat board Thiele tube and laser preparation method.
Background technology:
Along with developing rapidly of electronic technology, the high frequency of microelectronic component, at a high speed, and the intensive and miniaturization of integrated circuit so that the power consumption of electronic chip is increased dramatically, and result in high heat flow density.The hot spot effect of integrated circuit not only can shorten the service life of electronic device, also its normal working performance can be affected, the photoelectric transformation efficiency of LED chip only has 20%-30%, most energy scatters and disappears with the form of heat, and how quick heat radiating reduces hot spot effect is restriction electronic chip and the major reason of integrated circuit development.
The flat-plate heat pipe being realized heat transfer by the phase transformation of working medium has compact conformation, excellent uniform temperature, high heat conductivity and the advantage such as easy to attach, well meets chip compact to heat abstractor, reliable, flexible, efficient and need not the requirements such as maintenance.So, flat-plate heat pipe technology will become the main flow of future microelectronics components and parts and cooling system thereof, and the further enhanced heat transfer performance of flat-plate heat pipe is then the key technology affecting chip integration development.
Flat-plate heat pipe performance quality it is critical only that the liquid sucting core structure of inside, and the liquid sucting core structure of current flat-plate heat pipe mainly has sintered type and the big class of plough groove type two.Sintered type wick is the metal powder at flat-plate heat pipe internal face one layer of micro/nano level of sintering, provides, with this, the passage and capillary force that working medium reflux, but sintered type wick stability is inadequate, easy to fall off, working medium backflow resistance is big and entirety is heavier.Plough groove type wick is mainly the conduit processing certain cross sectional shape in heat pipe inner wall face, is provided the capillary force of liquid working substance backflow by minute groove.Traditional processing method includes cutting method, electrolysis, line patterning method etc., and these methods exist not environmentally, damage tube wall strength and the low inferior shortcoming of working (machining) efficiency, and Laser Processing has advantages such as noncontact, environmental protection, convenience and can be with manufacturing complex shapes structure.There is certain problem in conventional plough groove type wick, separate during upper and lower two plate direct splicing each conduit can make interfacial shear force increase impact heat transfer row energy；Though after one framework of middle pad, splicing is avoided that bigger interfacial shear force, but can flatten under bigger vacuum；Between upper and lower plates, add support column then can increase loaded down with trivial details technique, thicken and then run counter to the principle that heat pipe is light.And these liquid sucting core structures be mainly designed to consider to provide capillary force, therefore require design to meet the groove structure flat-plate heat pipe of upper and lower plates duty according to flat-plate heat pipe operation principle and portability and its preparation method be the development trend of heat pipe.
Summary of the invention
The problem that it is an object of the invention to solve to mention in background technology, analyze the main operational principle of each section of heat pipe, while ensureing strong capillary, promote the boiling performance of evaporator section and heat pipe startability and the cooling performance of condensation segment, pin fin structure not only can improve heat pipe intensity and reduction interfacial shear force and beneficially upper plate condensation water quick backflow drops to lower plate formation circulation, it is proposed that a kind of novel flat-plate Thiele tube and laser preparation method thereof.
Technical scheme realizes as follows:
(1) described novel flat-plate Thiele tube, include 1, red copper lower plate 3 of a red copper upper plate and fluid injection exhaust tube 2, the internal face of described upper plate 1 is machined with plough groove type compound needle fin structure 4 and scribbles low-surface energy substance, described fluid injection exhaust tube 2 coordinates with the opening 5 of upper and lower plates, the internal face of described lower plate 3 is machined with plough groove type compound needle fin structure 4, described flat-plate heat pipe upper plate 1 is condensation segment, and lower plate 3 is evaporator section, the most referred to as adiabatic section.
(2) surface has been cleaned up and the copper plate that dries has been placed on the workbench of multifunction laser, and to good Jiao.
(3) according to the processing characteristic of multifunction laser, first part of manuscript of the upper plate condensation segment structure that input is finished, by selecting suitable machined parameters and external condition, first obtain pin wing (0.2*0.2*0.2mm) array structure, import second part of manuscript the most again, between pin wing array, it is processed further out groove (0.2*0.3mm) obtains upper plate 1 structure, and process with low-surface energy substance.
(4) same, finish manuscript according to the operation principle of evaporator section and import in laser instrument, adjust suitable technological parameter and external process conditions, process lower plate 3 structure, and process with high surface energy material.
(5) certain length and the copper tube of caliber are selected, by flat for one side pressure and polish so that it is can well coordinate with the opening (3*0.5mm) on upper and lower plates, obtain fluid injection exhaust tube 2.
(6) by the upper plate 1 processed, the internal face surrounding uniform application thin layer solder(ing) paste of lower plate 3, the flat end of the fluid injection exhaust tube 2 matched with upper and lower plates opening is also coated with spreads solder(ing) paste, then three well it is stitched together and fixes with fixture, being finally putting into heat treated in high temperature furnace and weld to complete heat pipe.
(7) evacuation process is carried out with evacuation priming device by fluid injection exhaust tube elder generation opposite heat tube, evacuation is stopped when vacuum reaches necessary requirement, the valve opening liquid injection pipe injects a certain amount of liquid working substance to heat pipe, subsequently liquid injection pipe is cut off sealing, complete the preparation of novel flat-plate Thiele tube.
The beneficial effects of the present invention is:
Take into full account the operation principle of flat board Thiele tube, traditional groove structure devises pin wing array structure and pin fin structure according to upper plate condensation segment and lower plate evaporator section respectively.While keeping conventional trench structures advantage, lower plate pin fin structure provides more effectively vaporization nucleus calculation and heat pipe can be started faster；Upper plate pin wing array structure is while reducer film thickness reduces heat transfer resistance, it is possible to liquid working substance plays a drain and acts on the backflow accelerating drop；Upper plate and the effect that top can be played again a support of lower plate pin fin structure, thus increase tube wall strength.
Process principle according to multifunction laser, utilize its convenient, efficient, safe advantage, finish processing line figure and just can go out designed labyrinth in copper coin Surface Machining, and the ablation effect of laser can make surface have certain roughness, effective nucleus of boiling and capillary force can be rolled up, thus promote properties of hot pipe further.
Accompanying drawing illustrates:
Fig. 1 is flat board Thiele tube condensation segment structural representation of the present invention
Fig. 2 is flat board Thiele tube evaporator section structural representation of the present invention
Fig. 3 is that flat board Thiele tube of the present invention assembles schematic diagram
Fig. 4 is flat board Thiele tube cross sectional representation of the present invention
In figure: 1, upper plate condensation segment, 2, fluid injection exhaust tube, 3, lower plate evaporator section, 4, plough groove type compound needle fin structure, 5, little opening, 6, groove structure, 7, pin fin structure.
Detailed description of the invention
Embodiment:
The invention provides novel flat-plate Thiele tube and preparation method thereof, its main process is as follows:
(1) described novel flat-plate Thiele tube, include 1, red copper lower plate 3 of a red copper upper plate and fluid injection exhaust tube 2, the internal face of described upper plate 1 is machined with plough groove type compound needle fin structure 4 and scribbles low-surface energy substance, described fluid injection exhaust tube 2 coordinates with the opening 5 of upper and lower plates, the internal face of described lower plate 3 is machined with plough groove type compound needle fin structure 4, described flat-plate heat pipe upper plate 1 is condensation segment, and lower plate 3 is evaporator section, the most referred to as adiabatic section.
(2) surface has been cleaned up and the copper plate that dries has been placed on the workbench of multifunction laser, and to good Jiao.
(3) according to the processing characteristic of multifunction laser, first part of manuscript of the upper plate condensation segment structure that input is finished in advance, by selecting suitable machined parameters and external condition, first obtain pin wing (0.2*0.2*0.2mm) array structure, import second part of manuscript the most again, between pin wing array, it is processed further out groove (0.2*0.3mm) obtains upper plate 1 structure, and process with low-surface energy substance.
(4) same, operation principle according to evaporator section is finished manuscript and is imported in laser instrument, adjust suitable technological parameter and external process conditions, process lower plate 3 structure (pin wing 0.2*0.2*0.2mm, groove 0.2*0.3mm), and process with high surface energy material.
(5) certain length and the copper tube of caliber are selected, by flat for one side pressure and polish so that it is can well coordinate with the opening (3*0.5mm) on upper and lower plates, obtain fluid injection exhaust tube 2.
(6) by the upper plate 1 processed, the internal face surrounding uniform application thin layer solder(ing) paste of lower plate 3, the flat end of the fluid injection exhaust tube 2 matched with upper and lower plates opening is also coated with spreads solder(ing) paste, then three well it is stitched together and fixes with fixture, being finally putting into heat treated in high temperature furnace and weld to complete heat pipe.
(7) evacuation process is carried out with evacuation priming device by fluid injection exhaust tube elder generation opposite heat tube, evacuation is stopped when vacuum reaches necessary requirement, the valve opening liquid injection pipe injects a certain amount of liquid working substance to heat pipe, subsequently liquid injection pipe is cut off sealing, complete the preparation of novel flat-plate Thiele tube.
The present invention proposes novel flat-plate Thiele tube and achieves its laser preparation method, function admirable, simple and easy to use and environmental protection.First, plough groove type composite construction can promote boiling condensation performance and promote working medium backflow, and strengthens heat pipe intensity；Secondly, laser can complete the processing of complicated shape structure by layout, the ablation effect of laser makes finished surface have certain roughness, further enhancing the capillary suction power of heat pipe and adds effective vaporization nucleus calculation, improve the heat-transfer capability of heat pipe.
Claims (5)
1. novel flat-plate Thiele tube described in, includes a red copper upper plate (1), a red copper lower plate (3) and fluid injection exhaust tube (2),
The internal face of described upper plate (1) is machined with plough groove type compound needle fin structure (4), described fluid injection exhaust tube (2) and upper and lower plates
Opening (5) coordinate, the internal face of described lower plate (3) is machined with plough groove type compound needle fin structure (4), described flat board heat
Pipe upper plate (1) is condensation segment, and lower plate (3) is evaporator section, the most referred to as adiabatic section, described plough groove type compound needle wing
Structure (4) also promotees while providing capillary force according to evaporator section and the operation principle of condensation segment, the composite construction processed
Enter condensation of seething with excitement, it is also possible to accelerate upper plate condensation water and drop to lower plate, and play the work supporting and reducing interfacial shear force
With.
Novel flat-plate Thiele tube the most according to claim 1, it is characterised in that: comprise following key step；
(1) surface has been cleaned up and the copper plate that dries has been placed on the workbench of multifunction laser, and to good Jiao.
(2) according to the processing characteristic of multifunction laser, the manuscript of the upper plate condensation segment structure that input is finished in advance, is closed by selection
Suitable machined parameters and external condition, obtain upper plate 1 structure, and process with low-surface energy substance.
(3) same, finish manuscript according to the operation principle of evaporator section and import in laser instrument, adjust suitable technological parameter with outer
Portion's processing conditions, processes lower plate 3 structure, and processes with high surface energy material.
(4) appropriate length and the copper tube of caliber are selected, by flat for one side pressure and polish so that it is well can join with the opening of upper and lower plates
Close, obtain fluid injection exhaust tube 2.
(5) by the upper plate 1 processed, the internal face surrounding uniform application thin layer solder(ing) paste of lower plate 3, with upper and lower plates opening
The flat end of the fluid injection exhaust tube 2 matched also is coated with spreads solder(ing) paste, then three is well stitched together and solid with fixture
Fixed, it is finally putting into heat treated in high temperature furnace and welds to complete heat pipe.
(6) evacuation process is carried out, when vacuum reaches necessary requirement with evacuation priming device by fluid injection exhaust tube elder generation opposite heat tube
Stopping evacuation, the valve opening liquid injection pipe injects a certain amount of liquid working substance to heat pipe, subsequently liquid injection pipe is cut off sealing, complete
Become the preparation of novel flat-plate Thiele tube.
Novel flat-plate Thiele tube the most according to claim 1, it is characterised in that: the cross sectional shape of described groove structure (6) can
Think triangle, rectangle, the regular shape such as trapezoidal, or other special shapes.
Novel flat-plate Thiele tube the most according to claim 3, it is characterised in that: groove structure (6) is plough groove type compound needle wing
Structure (4), upper plate (1) condensation segment is ditch groove pin wing array structure, and lower plate (3) evaporator section is ditch groove pin fin structure.
Novel flat plate heat pipe the most according to claim 4, it is characterised in that: described pin fin structure (7) can be cube, circle
The regular shapes such as cylinder, and the height of its height no more than described groove structure (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331231.XA CN105865243A (en) | 2016-05-14 | 2016-05-14 | Novel flat plate thiele tube and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331231.XA CN105865243A (en) | 2016-05-14 | 2016-05-14 | Novel flat plate thiele tube and preparation method thereof |
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| CN105865243A true CN105865243A (en) | 2016-08-17 |
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| CN201610331231.XA Pending CN105865243A (en) | 2016-05-14 | 2016-05-14 | Novel flat plate thiele tube and preparation method thereof |
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Cited By (14)
| 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 |
| CN106541210A (en) * | 2016-10-31 | 2017-03-29 | 东莞仁海科技股份有限公司 | A kind of ultrathin temperature-uniforming plate laser preparation method |
| CN106871675A (en) * | 2017-03-22 | 2017-06-20 | 广东工业大学 | A kind of MULTILAYER COMPOSITE liquid-sucking core flat-plate type micro heat pipe and preparation method thereof |
| CN108521745A (en) * | 2018-03-12 | 2018-09-11 | 上海卫星工程研究所 | The efficient phase-change energy storage for adapting to the big heat spreader of pulsed is heat sink |
| CN108871024A (en) * | 2017-05-12 | 2018-11-23 | 双鸿科技股份有限公司 | Heat exchange combined structure |
| CN110355540A (en) * | 2019-07-20 | 2019-10-22 | 中国船舶重工集团公司第七二四研究所 | A kind of corrosion-resistant cold plate forming method of containing heat pipe inside |
| WO2020042974A1 (en) * | 2018-08-27 | 2020-03-05 | 广州力及热管理科技有限公司 | Thin-type vacuum heat insulating sheet and manufacturing method therefor |
| CN110953914A (en) * | 2018-09-27 | 2020-04-03 | 龙大昌精密工业有限公司 | Evaporator structure |
| CN111043886A (en) * | 2018-10-12 | 2020-04-21 | 广州力及热管理科技有限公司 | Method for manufacturing ultrathin hot tube plate with printed capillary structure |
| CN111059945A (en) * | 2019-12-24 | 2020-04-24 | 东北电力大学 | Hierarchical little channel flat plate heat pipe |
| CN111486726A (en) * | 2019-01-25 | 2020-08-04 | 双鸿电子科技工业(昆山)有限公司 | Manufacturing process of vapor chamber |
| CN111811306A (en) * | 2019-04-11 | 2020-10-23 | 讯凯国际股份有限公司 | Heat sink and method for manufacturing the same |
| CN113270382A (en) * | 2020-02-14 | 2021-08-17 | 昇印光电（昆山）股份有限公司 | Heat dissipation assembly and electronic equipment carrying same |
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| CN206037798U (en) * | 2016-05-14 | 2017-03-22 | 广东工业大学 | Novel dull and stereotyped thiele tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN106541210A (en) * | 2016-10-31 | 2017-03-29 | 东莞仁海科技股份有限公司 | A kind of ultrathin temperature-uniforming plate laser preparation method |
| CN106871675A (en) * | 2017-03-22 | 2017-06-20 | 广东工业大学 | A kind of MULTILAYER COMPOSITE liquid-sucking core flat-plate type micro heat pipe and preparation method thereof |
| CN108871024B (en) * | 2017-05-12 | 2020-01-07 | 双鸿科技股份有限公司 | Heat exchange combined structure |
| CN108871024A (en) * | 2017-05-12 | 2018-11-23 | 双鸿科技股份有限公司 | Heat exchange combined structure |
| CN108521745A (en) * | 2018-03-12 | 2018-09-11 | 上海卫星工程研究所 | The efficient phase-change energy storage for adapting to the big heat spreader of pulsed is heat sink |
| WO2020042974A1 (en) * | 2018-08-27 | 2020-03-05 | 广州力及热管理科技有限公司 | Thin-type vacuum heat insulating sheet and manufacturing method therefor |
| CN110953914A (en) * | 2018-09-27 | 2020-04-03 | 龙大昌精密工业有限公司 | Evaporator structure |
| CN111043886A (en) * | 2018-10-12 | 2020-04-21 | 广州力及热管理科技有限公司 | Method for manufacturing ultrathin hot tube plate with printed capillary structure |
| CN111043886B (en) * | 2018-10-12 | 2021-05-25 | 广州力及热管理科技有限公司 | Method for manufacturing ultrathin hot tube plate with printed capillary structure |
| CN111486726A (en) * | 2019-01-25 | 2020-08-04 | 双鸿电子科技工业(昆山)有限公司 | Manufacturing process of vapor chamber |
| CN111811306A (en) * | 2019-04-11 | 2020-10-23 | 讯凯国际股份有限公司 | Heat sink and method for manufacturing the same |
| CN110355540A (en) * | 2019-07-20 | 2019-10-22 | 中国船舶重工集团公司第七二四研究所 | A kind of corrosion-resistant cold plate forming method of containing heat pipe inside |
| CN111059945A (en) * | 2019-12-24 | 2020-04-24 | 东北电力大学 | Hierarchical little channel flat plate heat pipe |
| CN113270382A (en) * | 2020-02-14 | 2021-08-17 | 昇印光电（昆山）股份有限公司 | Heat dissipation assembly and electronic equipment carrying same |
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Application publication date: 20160817 |