CN108801019A - A kind of phase-change heat transfer element and its manufacturing method with multilayer liquid sucting core structure - Google Patents
A kind of phase-change heat transfer element and its manufacturing method with multilayer liquid sucting core structure Download PDFInfo
- Publication number
- CN108801019A CN108801019A CN201810836443.2A CN201810836443A CN108801019A CN 108801019 A CN108801019 A CN 108801019A CN 201810836443 A CN201810836443 A CN 201810836443A CN 108801019 A CN108801019 A CN 108801019A
- Authority
- CN
- China
- Prior art keywords
- core structure
- liquid sucting
- sucting core
- heat transfer
- tube body
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 65
- 238000012546 transfer Methods 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000002356 single layer Substances 0.000 claims abstract description 9
- 230000010412 perfusion Effects 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 17
- 238000005245 sintering Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005476 soldering Methods 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000003673 groundwater Substances 0.000 claims description 2
- 238000005213 imbibition Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000004323 axial length Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 230000004907 flux Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 4
- 238000009958 sewing Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F28F11/00—Arrangements for sealing leaky tubes and conduits
Landscapes
- 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)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The present invention relates to a kind of phase-change heat transfer elements with multilayer liquid sucting core structure, including the tube body vacuumized, inner cavity is sealed for one in tube body, seals luminal perfusion liquid working substance, the inside middle portion of tube body is equipped with multilayer liquid sucting core structure, and single layer liquid sucting core structure is equipped on the inside of the both ends of tube body.Further relate to a kind of manufacturing method of the phase-change heat transfer element with multilayer liquid sucting core structure.The present invention has multilayer liquid sucting core structure, its capillary performance and heat dissipation performance are the superpositions of multilayer liquid sucting core structure, compared to the phase-change heat transfer element of conventional monolayers liquid sucting core structure, its heat transfer property has obtained great promotion, the demand that disclosure satisfy that high heat flux density heat dissipation occasion, belongs to phase-change heat transfer field.
Description
Technical field
The present invention relates to phase-change heat transfer fields, and in particular to a kind of phase-change heat transfer element with multilayer liquid sucting core structure and
Its manufacturing method.
Background technology
There is phase-change heat transfer element high thermal conductivity and good equal thermal characteristics, since the advent of the world just to have obtained widely
Using.It is special since the liquid sucting core structure that traditional diamond-making technique makes is difficult to meet the needs of current high heat flux density heat dissipation occasion
Kind processing method is gradually applied to the processing of high performance wick structure, and high-performance heat pipe is studied and produced, still
The deficiencies of equipment cost of special process method costliness, low production efficiency, limits the extensive of high-performance phase-change heat transfer element and answers
With.
For the contradiction between the high radiating requirements of electronic equipment at this stage and the relatively low heat-sinking capability of phase-change heat transfer element, propose
A kind of heat pipe with multilayer liquid sucting core structure, the heat pipe have multilayer liquid sucting core structure, and capillary performance and heat transfer property obtain
To being greatly improved；Meanwhile production method is simple, and it is of low cost, large-scale industrial production can be suitable for and answered
With.
Invention content
For the technical problems in the prior art, the purpose of the present invention is：One kind is provided and disclosure satisfy that high hot-fluid is close
The phase-change heat transfer element and its manufacturing method with multilayer liquid sucting core structure of the demand of degree heat dissipation occasion.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of phase-change heat transfer element with multilayer liquid sucting core structure, including the tube body that vacuumizes are a sealing in tube body
Inner cavity, seals luminal perfusion liquid working substance, and the inside middle portion of tube body is equipped with multilayer liquid sucting core structure, is equipped on the inside of the both ends of tube body
Single layer liquid sucting core structure.
As a preferred embodiment, a kind of phase-change heat transfer element with multilayer liquid sucting core structure, including more metal layers, metal
The inside of layer is equipped with liquid sucting core structure；The both ends of tube body are one layer of metal layer, and the middle part of tube body from stacking gradually multilayer inside outside
Metal layer.
As a preferred embodiment, metal layer is aluminium layer or layers of copper.
As a preferred embodiment, liquid sucting core structure is very low power structure, fiber sintering structure, powder sintered porous structure, bubble
One or more of foam metal structure, silk screen sintering structure.
As a preferred embodiment, total number of plies of the liquid sucting core structure in the middle part of tube body is 2-5 layers；The axial direction of single layer liquid sucting core structure
Length is 5~10mm.
As a preferred embodiment, liquid working substance is deionized water or acetone.
A kind of manufacturing method of the phase-change heat transfer element with multilayer liquid sucting core structure, includes the following steps：In "T"-shaped gold
The surface for belonging to piece processes liquid sucting core structure；"T"-shaped sheet metal is started to curl up from small end to big end, and final "T"-shaped sheet metal passes through
Curling, sintering, welding form pipe structure, and the big end both ends of "T"-shaped sheet metal form tube body both ends；Liquid work is perfused to tube body
Sealing is vacuumized after matter.
As a preferred embodiment, the plug for the insertion tube body that sintering step uses is stainless steel bar, ceramic rod or graphite rod, core
The internal diameter of a diameter of tube body of stick.
As a preferred embodiment, welding procedure is Reflow Soldering, inert gas-shielded arc welding or laser welding.
As a preferred embodiment, after vacuumizing encapsulation process, vacuum degree is less than 50Pa；The groundwater increment of liquid working substance is that multilayer is inhaled
The 10%~80% of wick-containing structural capacity.
Generally speaking, the invention has the advantages that：
1. having multilayer liquid sucting core structure, capillary performance and heat dissipation performance are the superpositions of multilayer liquid sucting core structure, are compared
In the phase-change heat transfer element of conventional monolayers liquid sucting core structure, heat transfer property has obtained great promotion, disclosure satisfy that high hot-fluid
The demand of density heat dissipation occasion.
2. the phase-change heat transfer element with multilayer liquid sucting core structure is by techniques such as curling, sintering and welding by "T"-shaped gold
Belong to piece to make, the making of traditional processing means may be used in liquid sucting core structure, and manufacture craft is simple；Reduced by sintering process and is inhaled
The thermal resistance of wick-containing structure between layers, welding procedure form sealed internal chamber, ensure the leakproofness of heat pipe.With using the special process
The high-efficiency heat pipe that means make is compared, high in machining efficiency, of low cost, disclosure satisfy that the demand of mass production and application.
3. with good capillary performance, compared with high limit power.
Description of the drawings
Fig. 1 is the sectional view of the phase-change heat transfer element with multilayer liquid sucting core structure.
Fig. 2 is the partial enlarged view of the phase-change heat transfer element with multilayer liquid sucting core structure.
Fig. 3 is the "T"-shaped sheet metal for having very low power structure liquid-sucking core.
Wherein, 1 is tube body, and 2 be sealing inner cavity, and 11 be single layer liquid sucting core structure, and 12 be multilayer liquid sucting core structure.
Specific implementation mode
Below in conjunction with specific implementation mode, the present invention will be further described in detail.
A kind of phase-change heat transfer element with multilayer liquid sucting core structure, including phase-change heat transfer element tube body, the phase-change heat transfer
Element tube body is made of "T"-shaped copper sheet through curling, sintering process, and heat transfer element tube body both ends have single layer very low power structure imbibition
Core, heat transfer element tube body middle part have multilayer very low power structure liquid-sucking core；Heat transfer element tube body both ends and the sealing of side wall connecting sewing,
A sealing inner cavity is formed, deionized water is perfused as liquid working substance in sealing inner cavity, and rear vacuumize process simultaneously seals.
"T"-shaped copper sheet surface has very low power structure, and in the present embodiment, the thickness of "T"-shaped copper sheet is 0.2mm, micro- ditch
Slot structure cut using plough-and extrusion process is processed, and depth is about 0.12mm."T"-shaped copper sheet is carried out since small end to big end
Curling, as shown by the arrows in Figure 3, so that "T"-shaped copper sheet big end forms the single layer very low power structure at heat transfer element tube body both ends
Liquid-sucking core, the single layer liquid sucting core structure at heat transfer element tube body both ends have the function of storing liquid working substance, guarantee liquid working substance energy
Enough each layer of liquid-sucking cores for entering middle part."T"-shaped copper sheet after curling is wrapped on graphite centre rod, graphite centre rod diameter and heat
Pipe internal diameter of tube body is identical, and tube body of heat pipe internal diameter is about 4mm in the present embodiment, and outer diameter is about 6mm, after then using mold that will crimp
Copper sheet and plug carry out clamping, and be put into vacuum atmosphere protective resistance stove and be sintered, to reduce multilayer liquid-sucking core
Between thermal contact resistance, the sintering temperature in the present embodiment is 850 DEG C, soaking time 1h.After the completion of sintering, to heat transfer element
Tube wall connecting sewing carries out soldering, and the present embodiment uses solder reflow process, uniformly smeared in side wall connecting sewing first
Low temperature soldering paste, and clamping mould is used, it is then heated, isothermal holding, is connected with ensureing that soldering paste fully melts and fills up side wall
Seam ensures the air-tightness of tube body of heat pipe.
Necking, welded seal processing are carried out to tube body of heat pipe one end after the completion of welding, necking then is carried out to the other end,
And vacuumized, working medium is perfused, use deionized water as working medium in the present embodiment, liquid filled ratio 60% uses after the completion
Inert gas-shielded arc welding is sealed processing.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (10)
1. a kind of phase-change heat transfer element with multilayer liquid sucting core structure, including the tube body that vacuumizes, in a sealing in tube body
Chamber seals luminal perfusion liquid working substance, it is characterised in that：The inside middle portion of tube body be equipped with multilayer liquid sucting core structure, the two of tube body
End inside is equipped with single layer liquid sucting core structure.
2. a kind of phase-change heat transfer element with multilayer liquid sucting core structure described in accordance with the claim 1, it is characterised in that：Including
The inside of more metal layers, metal layer is equipped with liquid sucting core structure；The both ends of tube body are one layer of metal layer, and the middle part of tube body is from outer past
Inside stack gradually more metal layers.
3. a kind of phase-change heat transfer element with multilayer liquid sucting core structure according to claim 2, it is characterised in that：Metal
Layer is aluminium layer or layers of copper.
4. a kind of phase-change heat transfer element with multilayer liquid sucting core structure according to claim 2, it is characterised in that：Imbibition
Cored structure is in very low power structure, fiber sintering structure, powder sintered porous structure, foamed metal structures, silk screen sintering structure
One or more.
5. a kind of phase-change heat transfer element with multilayer liquid sucting core structure described in accordance with the claim 1, it is characterised in that：Tube body
Total number of plies of the liquid sucting core structure at middle part is 2-5 layers；The axial length of tube body end equipped with single layer liquid sucting core structure be 5~
10mm。
6. a kind of phase-change heat transfer element with multilayer liquid sucting core structure described in accordance with the claim 1, it is characterised in that：Liquid
Working medium is deionized water or acetone.
7. according to a kind of system of the phase-change heat transfer element with multilayer liquid sucting core structure according to any one of claims 1 to 6
Make method, it is characterised in that：Include the following steps：Liquid sucting core structure is processed on the surface of "T"-shaped sheet metal；"T"-shaped sheet metal
It is started to curl up from small end to big end, final "T"-shaped sheet metal forms pipe structure, "T"-shaped metal by curling, sintering, welding
The big end both ends of piece form tube body both ends；Sealing is vacuumized after liquid working substance is perfused to tube body.
8. a kind of manufacturing method of the phase-change heat transfer element with multilayer liquid sucting core structure according to claim 7, special
Sign is：The plug for the insertion tube body that sintering step uses is stainless steel bar, ceramic rod or graphite rod, a diameter of tube body of plug
Internal diameter.
9. a kind of manufacturing method of the phase-change heat transfer element with multilayer liquid sucting core structure according to claim 7, special
Sign is：Welding procedure is Reflow Soldering, inert gas-shielded arc welding or laser welding.
10. a kind of manufacturing method of the phase-change heat transfer element with multilayer liquid sucting core structure according to claim 7, special
Sign is：After vacuumizing encapsulation process, vacuum degree is less than 50Pa；The groundwater increment of liquid working substance is multilayer liquid sucting core structure volume
10%~80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836443.2A CN108801019B (en) | 2018-07-26 | 2018-07-26 | Phase change heat transfer element with multilayer liquid absorption core structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836443.2A CN108801019B (en) | 2018-07-26 | 2018-07-26 | Phase change heat transfer element with multilayer liquid absorption core structure and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108801019A true CN108801019A (en) | 2018-11-13 |
| CN108801019B CN108801019B (en) | 2024-05-07 |
Family
ID=64078284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810836443.2A Active CN108801019B (en) | 2018-07-26 | 2018-07-26 | Phase change heat transfer element with multilayer liquid absorption core structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801019B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137886A (en) * | 2021-04-08 | 2021-07-20 | 南京工业职业技术大学 | 5G mobile phone honeycomb bionic liquid absorption core vapor chamber and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63129297A (en) * | 1986-11-18 | 1988-06-01 | Showa Alum Corp | Heat pipe |
| CN101410685A (en) * | 2006-03-03 | 2009-04-15 | 伊路米耐克斯公司 | Heat pipe with nanotstructured wicking material |
| CN102305564A (en) * | 2011-08-26 | 2012-01-04 | 华南理工大学 | Fiber sintering type micro heat pipe and manufacturing method thereof |
| CN104764349A (en) * | 2015-04-17 | 2015-07-08 | 广东新创意科技有限公司 | Composite type liquid suction core ultra-thin heat pipe and manufacturing method thereof |
| CN105202956A (en) * | 2014-06-26 | 2015-12-30 | 江苏格业新材料科技有限公司 | Manufacturing method of composite vapor chamber with base plate made of molybdenum-copper or tungsten-copper alloy and other heat sink materials |
| CN106017176A (en) * | 2016-07-18 | 2016-10-12 | 华南理工大学 | Ultrathin heat pipe for heat dissipation of mobile phone and manufacturing method thereof |
| CN107167008A (en) * | 2017-04-28 | 2017-09-15 | 华北电力大学 | A kind of ultra-thin panel heat pipe and its manufacture method |
| CN208998614U (en) * | 2018-07-26 | 2019-06-18 | 华南理工大学 | A kind of phase-change heat transfer element with multilayer liquid sucting core structure |
-
2018
- 2018-07-26 CN CN201810836443.2A patent/CN108801019B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63129297A (en) * | 1986-11-18 | 1988-06-01 | Showa Alum Corp | Heat pipe |
| CN101410685A (en) * | 2006-03-03 | 2009-04-15 | 伊路米耐克斯公司 | Heat pipe with nanotstructured wicking material |
| CN102305564A (en) * | 2011-08-26 | 2012-01-04 | 华南理工大学 | Fiber sintering type micro heat pipe and manufacturing method thereof |
| CN105202956A (en) * | 2014-06-26 | 2015-12-30 | 江苏格业新材料科技有限公司 | Manufacturing method of composite vapor chamber with base plate made of molybdenum-copper or tungsten-copper alloy and other heat sink materials |
| CN104764349A (en) * | 2015-04-17 | 2015-07-08 | 广东新创意科技有限公司 | Composite type liquid suction core ultra-thin heat pipe and manufacturing method thereof |
| CN106017176A (en) * | 2016-07-18 | 2016-10-12 | 华南理工大学 | Ultrathin heat pipe for heat dissipation of mobile phone and manufacturing method thereof |
| CN107167008A (en) * | 2017-04-28 | 2017-09-15 | 华北电力大学 | A kind of ultra-thin panel heat pipe and its manufacture method |
| CN208998614U (en) * | 2018-07-26 | 2019-06-18 | 华南理工大学 | A kind of phase-change heat transfer element with multilayer liquid sucting core structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137886A (en) * | 2021-04-08 | 2021-07-20 | 南京工业职业技术大学 | 5G mobile phone honeycomb bionic liquid absorption core vapor chamber and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108801019B (en) | 2024-05-07 |
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