CN110044193A - A kind of heat pipe - Google Patents
A kind of heat pipe Download PDFInfo
- Publication number
- CN110044193A CN110044193A CN201910354326.7A CN201910354326A CN110044193A CN 110044193 A CN110044193 A CN 110044193A CN 201910354326 A CN201910354326 A CN 201910354326A CN 110044193 A CN110044193 A CN 110044193A
- Authority
- CN
- China
- Prior art keywords
- mesh
- heat pipe
- shell
- capillary structure
- evaporating area
- 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
- 238000001704 evaporation Methods 0.000 claims abstract description 27
- 239000011148 porous material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 5
- 238000003486 chemical etching Methods 0.000 claims description 4
- 238000009954 braiding Methods 0.000 claims 1
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 230000005518 electrochemistry Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 16
- 230000006872 improvement Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F28D15/0233—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 the conduits having a particular shape, e.g. non-circular cross-section, annular
-
- 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
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
Abstract
The present invention relates to heat transfer element technical fields, disclose a kind of heat pipe, including shell, evaporating area and condensing zone, the shell seal and internal there is cavity, the evaporating area and the condensing zone are located at the both ends of the heat pipe, the inner wall of the shell is equipped with several holes to form porous capillary structure, and the surface of the porous capillary structure is additionally provided with mesh grid capillary structure.Heat pipe in the present invention can increase capillary attraction while reducing radial heat transfer and hindering, and the heat transfer of evaporating area can be gone out as early as possible, and the liquid in shell can smoothly flow back.
Description
Technical field
The present invention relates to heat transfer element technical field more particularly to a kind of heat pipes.
Background technique
Requirement with consumer to each electronic product is higher and higher, trend of the electronic product progressively towards miniature portable
Development.However after small product size reduces, inner space is also restricted, and internal element arrangement is compact, is unfavorable for radiating, and is held
Easily there is the problem of element over-temperature.In order to solve this problem, it will usually which heat pipe is set at easy heater element to cool down.Heat
Pipe is generally made of shell, liquid-sucking core and end cap, and inside heat pipe is pumped into negative pressure state, is filled with the lower liquid of appropriate boiling point,
Its is readily volatilized.Liquid-sucking core is located at tube wall, with capillary structure.One end of heat pipe is evaporation ends, and the other end is condensation end.
When the evaporation ends of heat pipe are heated, the liquid in pipe evaporates rapidly, and steam flows to condensation end under small pressure difference, is condensing
End releases heat regelation into liquid to the cold, and liquid flows back to evaporator section along liquid-sucking core again, loops back and forth like this, and makes heat can
Come with continuously being conducted.In the process, liquid needs are returned by the capillary attraction of liquid-sucking core capillary structure
Stream.Traditional capillary structure has mesh grid capillary structure, and the capillary attraction of mesh grid capillary structure is larger, but it radially conducts heat
It hinders larger, therefore, is badly in need of a kind of with the heat pipe that can reduce the capillary structure that radial heat transfer hinders.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of heat pipe, and the capillary structure of the heat pipe can reduce diameter
Increase capillary attraction while obstruction to heat transfer, the heat transfer of evaporating area can be gone out as early as possible, and the liquid in shell can be suitable
Benefit reflux.
The technical solution adopted by the present invention to solve the technical problems is:
It provides a kind of heat pipe, including shell, evaporating area and condensing zone, the shell seal and internal there is cavity, institute
It states evaporating area and the condensing zone is located at the both ends of the heat pipe, the inner wall of the shell is equipped with several holes to be formed
Porous capillary structure, and the surface of the porous capillary structure is additionally provided with mesh grid capillary structure.
As an improvement of the above technical solution, the porous capillary structure passes through chemical etching or the method for chemical etching
It is made.
As a further improvement of the above technical scheme, the porosity ranges of the porous capillary structure are 20%-60%,
The pore diameter range of described hole is 0.01mm-0.2mm, and the depth bounds of described hole are 0.05mm-0.8mm.
As a further improvement of the above technical scheme, the porous capillary structure is from the evaporating area to the condensing zone
The aperture of described hole be gradually increased, porosity is gradually reduced.
As a further improvement of the above technical scheme, the mesh grid capillary structure includes at least two groups of mesh grids, institute
The mesh number range for stating the mesh of mesh grid is -400 mesh of 80 mesh, and the pore diameter range of the mesh is 0.04mm-0.2mm.
As a further improvement of the above technical scheme, close to the mesh ruler of the mesh grid of the inner sidewall of the shell
The mesh size of the very little mesh grid for being greater than the inner sidewall far from the shell.
As a further improvement of the above technical scheme, from the evaporating area to the net of the mesh grid of the condensing zone
The size in hole is gradually increased, and porosity is gradually reduced.
As a further improvement of the above technical scheme, several support columns, the support column are additionally provided in the cavity
Both ends be individually fixed in the shell inner sidewall opposite side, and the support column pass through the mesh grid capillary structure portion
Subnetting hole.
As a further improvement of the above technical scheme, adiabatic region, institute are equipped between the evaporating area and the condensing zone
The outer wall for stating the shell of evaporating area is contacted with heat source, and radiating fin and fan are equipped at the outer wall of the shell of the condensing zone.
The beneficial effects of the present invention are: the heat pipe in the present invention can increase capillary while reducing radial heat transfer and hindering and inhale
Power can as early as possible go out the heat transfer of evaporating area, and the liquid in shell can smoothly flow back.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the cross-sectional view (not including support column) of heat pipe in first embodiment of the invention；
Fig. 2 is the cross-sectional view (not including support column) of heat pipe in first embodiment of the invention；
Fig. 3 is the structural schematic diagram of mesh grid and support column in first embodiment of the invention；
Fig. 4 is the cross-sectional view (not including support column) of heat pipe in second embodiment of the invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that the case where not conflicting
Under, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature,
It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In addition, this
The descriptions such as up, down, left, right, before and after used in invention are only relative to the mutual of each component part of the invention in attached drawing
For positional relationship.
In addition, unless otherwise defined, the technology of all technical and scientific terms used herein and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the present invention.Term " and or " used herein includes the arbitrary of one or more relevant listed items
Combination.
It should be strongly noted that the size in attached drawing is amplified effect, actual size is not represented.
Referring to Fig.1 with Fig. 2, the cross-sectional view (not including support column) and heat pipe of heat pipe in first embodiment of the invention are shown
Cross-sectional view (not including support column).Heat pipe includes shell 1 and capillary structure 2.1 inner hollow of shell of heat pipe and end
Portion closing, inside be formed with cavity 3.The working fluid of suitable low melting point is placed in cavity 3, such as water, ethyl alcohol or acetone
Deng.
Heat pipe is equipped with evaporating area 11 and condensing zone 12, and evaporating area 11 and condensing zone 12 are located at two end regions of heat pipe,
Region between evaporating area 11 and condensing zone 12 is adiabatic region.Shell at evaporating area 11 is contacted with heat source, and heat source to steam
Working fluid inside at hair area 11 flashes to gas.Gas flows to condensing zone 12 in cavity 3, outer at condensing zone 12
It is equipped with radiating fin (not shown) at shell, and is equipped with fan, to accelerate the heat transfer in the region.Gas is in the area
Liquid will be liquefied as in domain to the cold, the inner sidewall that liquid is close to shell 1 under the capillary attraction effect of capillary structure 2 is back to steaming
Send out area 11.
Capillary structure 2 is combined by porous capillary structure 21 and mesh grid capillary structure 22.Porous capillary structure 21 1
It is body formed on the inner sidewall of shell 1, mesh grid capillary structure 22 is attached to the surface of porous capillary structure 21.
Many small holes 211 are made by chemical etching or electrochemical etching process on the inner sidewall of shell 1, with shape
At porous capillary structure 21.If hole 211 is oversized, porosity is too small, may be inadequate to the capillary attraction of liquid, if
The undersized of hole 211, porosity is excessive, although its capillary attraction is larger, the flow resistance of liquid also therefore and
Increase, therefore, porosity and bore hole size need in the numberical range in a relative equilibrium.It is common, porous capillary knot
The porosity ranges of structure 21 are 20%-60%, and the pore diameter range of hole 211 is 0.01mm-0.2mm, the depth bounds of hole 211
For 0.05mm-0.8mm.
The material of heat pipe can according to etching solution or etching power parameter be adjusted, in general, can be selected copper, aluminium, stainless steel,
The materials such as titanium or titanium alloy.The parameters such as bore hole size and the porosity of capillary structure are selected according to the needs of use, further according to above-mentioned
The suitable etchant concentration of parameter selection and power parameter.Hole is made in metal surface by etching method and belongs to existing skill
Art, details are not described herein.
After porous capillary structure 21 is made on the inner sidewall of shell 1, porous capillary knot is welded or is adhered in mesh grid
The surface of structure 21, compound capillary structure is made.As shown in figure 3, showing mesh grid and support in first embodiment of the invention
The structural schematic diagram of column.The litzendraht wires 221 of more intersections form mesh grids 22, and there are many mesh in mesh grid 22.Litzendraht wire
221 select wire, and copper wire usually can be selected.If the mesh porosity in mesh grid is too small, mesh size is excessive, then for
Also therefore the capillary attraction of working fluid may not enough, if porosity is excessive, mesh size is too small, then the flow resistance of liquid
And increase, porosity and mesh size need in the numberical range in a relative equilibrium.It is common, the pore diameter range of mesh
For 0.04mm-0.2mm, the mesh number range of mesh is -400 mesh of 80 mesh.
Mesh grid capillary structure can generate biggish capillary attraction to working fluid, but its resistance to liquid flowing
It is larger, therefore, it is possible to use the mode that multi-layer braided net combines.In the present embodiment, mesh grid capillary structure is at least by two
Group mesh grid is constituted, and every group of mesh grid may include single-layer or multi-layer.Mesh grid far from 1 inner sidewall side of shell selects porosity
The lesser fine-structure mesh of larger and mesh size, close to the several layers of mesh grids selection porosity and mesh size of 1 inner sidewall of shell
Biggish coarse net.Being designed in this way can make the fine-structure mesh on surface provide biggish capillary attraction, and the coarse net of inside subtracts flow resistance
It is small.
Furthermore, it is possible to make the parameter of mesh grid along heat pipe Axial changes, from evaporating area 11 to the mesh grid of condensing zone 12
Mesh size is gradually increased, and porosity is gradually reduced.Similarly, the parameter of porous capillary structure can be made also axially to become along heat pipe
Change.The aperture of hole from evaporating area 11 to the porous capillary structure of condensing zone 12 is gradually increased, and porosity is gradually reduced.So
It can be designed so that capillary structure 2 is gradually reduced the capillary attraction of liquid from evaporating area 11 to condensing zone 12.Therefore, be conducive to
The liquid of condensing zone 12 is back to evaporating area 11 as early as possible.
In addition, in order to enhance the pipe walls support of opposite heat tube support column can also be placed in the cavity of heat pipe.Such as Fig. 3 institute
Show, support column 4 passes through the part mesh in mesh grid 22, and the both ends of support column are individually fixed in the opposite side of heat pipe.In order to avoid
Support column 4 stops the flow channel in heat pipe, and support column 4 can not be arranged is excessively intensive, and only placement is in the mesh of part
Can, and the position placed is staggered as far as possible.
In the present embodiment, by combining porous capillary structure with mesh grid capillary structure, so that the performance of heat pipe
It is more excellent.Not only taken into account the good capillary attraction of mesh grid, but also obtained the lesser radial direction thermal resistance of porous organization, thus obtain compared with
Good heat-transfer capability.
Referring to Fig. 4, the cross-sectional view (not including support column) of heat pipe in second embodiment of the invention is shown.This reality
It applies example and is only that the shell shape of heat pipe is different from the difference of first embodiment.Shell can change shape as needed, and tubulose is simultaneously
Not exclusive selection.
It is to be illustrated to what preferable implementation of the invention carried out, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (9)
1. a kind of heat pipe, which is characterized in that including shell, evaporating area and condensing zone, the shell seal and it is internal there is cavity,
The evaporating area and the condensing zone are located at the both ends of the heat pipe, and the inner wall of the shell is equipped with several holes with shape
Mesh grid capillary structure is additionally provided at the surface of porous capillary structure, and the porous capillary structure.
2. heat pipe according to claim 1, which is characterized in that the porous capillary structure passes through chemical etching or electrochemistry
The method of etching is made.
3. heat pipe according to claim 1, which is characterized in that the porosity ranges of the porous capillary structure are 20%-
60%, the pore diameter range of described hole is 0.01mm-0.2mm, and the depth bounds of described hole are 0.05mm-0.8mm.
4. heat pipe according to claim 1, which is characterized in that the porous capillary structure is from the evaporating area to described cold
The aperture of the described hole of coagulation zone is gradually increased, and porosity is gradually reduced.
5. heat pipe according to claim 1, which is characterized in that the mesh grid capillary structure includes at least two groups of braidings
Net, the mesh number range of the mesh of the mesh grid are -400 mesh of 80 mesh, and the pore diameter range of the mesh is 0.04mm-0.2mm.
6. heat pipe according to claim 5, which is characterized in that close to the net of the mesh grid of the inner sidewall of the shell
Pore size is greater than the mesh size of the mesh grid of the inner sidewall far from the shell.
7. heat pipe according to claim 5, which is characterized in that from the evaporating area to the mesh grid of the condensing zone
The size of mesh be gradually increased, porosity is gradually reduced.
8. heat pipe according to claim 1, which is characterized in that be additionally provided with several support columns, the branch in the cavity
The both ends of dagger are individually fixed in the opposite side of the inner sidewall of the shell, and the support column passes through the mesh grid capillary structure
Part mesh.
9. heat pipe according to claim 1, which is characterized in that be equipped with insulation between the evaporating area and the condensing zone
The outer wall in area, the shell of the evaporating area is contacted with heat source, and radiating fin and wind are equipped at the outer wall of the shell of the condensing zone
Fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354326.7A CN110044193A (en) | 2019-04-29 | 2019-04-29 | A kind of heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354326.7A CN110044193A (en) | 2019-04-29 | 2019-04-29 | A kind of heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110044193A true CN110044193A (en) | 2019-07-23 |
Family
ID=67280145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354326.7A Pending CN110044193A (en) | 2019-04-29 | 2019-04-29 | A kind of heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110044193A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746348Y (en) * | 2004-11-02 | 2005-12-14 | 力致科技股份有限公司 | Improved heat pipe structure |
| CN2757079Y (en) * | 2004-11-04 | 2006-02-08 | 李嘉豪 | Support structure of heat pipe multilayer capillary tissue |
| US20060162906A1 (en) * | 2005-01-21 | 2006-07-27 | Chu-Wan Hong | Heat pipe with screen mesh wick structure |
| CN101055158A (en) * | 2006-04-14 | 2007-10-17 | 富准精密工业(深圳)有限公司 | Heat pipe |
| CN202229638U (en) * | 2011-09-06 | 2012-05-23 | 昆山迪生电子有限公司 | Ultra-thin flat heat pipe structure |
| CN102878843A (en) * | 2011-07-15 | 2013-01-16 | 富瑞精密组件（昆山）有限公司 | Heat pipe |
| CN106323061A (en) * | 2015-06-30 | 2017-01-11 | 极致科技股份有限公司 | Micro heat pipe and manufacturing method of micro heat pipe |
| CN207706623U (en) * | 2018-01-22 | 2018-08-07 | 江苏大方金属粉末有限公司 | A kind of electronic equipment radiator |
| CN209978682U (en) * | 2019-04-29 | 2020-01-21 | 深圳市尚翼实业有限公司 | Heat pipe |
-
2019
- 2019-04-29 CN CN201910354326.7A patent/CN110044193A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746348Y (en) * | 2004-11-02 | 2005-12-14 | 力致科技股份有限公司 | Improved heat pipe structure |
| CN2757079Y (en) * | 2004-11-04 | 2006-02-08 | 李嘉豪 | Support structure of heat pipe multilayer capillary tissue |
| US20060162906A1 (en) * | 2005-01-21 | 2006-07-27 | Chu-Wan Hong | Heat pipe with screen mesh wick structure |
| CN101055158A (en) * | 2006-04-14 | 2007-10-17 | 富准精密工业(深圳)有限公司 | Heat pipe |
| CN102878843A (en) * | 2011-07-15 | 2013-01-16 | 富瑞精密组件（昆山）有限公司 | Heat pipe |
| CN202229638U (en) * | 2011-09-06 | 2012-05-23 | 昆山迪生电子有限公司 | Ultra-thin flat heat pipe structure |
| CN106323061A (en) * | 2015-06-30 | 2017-01-11 | 极致科技股份有限公司 | Micro heat pipe and manufacturing method of micro heat pipe |
| CN207706623U (en) * | 2018-01-22 | 2018-08-07 | 江苏大方金属粉末有限公司 | A kind of electronic equipment radiator |
| CN209978682U (en) * | 2019-04-29 | 2020-01-21 | 深圳市尚翼实业有限公司 | Heat pipe |
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