CN109579583A - A kind of ultra-thin imitative blade soaking plate - Google Patents
A kind of ultra-thin imitative blade soaking plate Download PDFInfo
- Publication number
- CN109579583A CN109579583A CN201811450060.8A CN201811450060A CN109579583A CN 109579583 A CN109579583 A CN 109579583A CN 201811450060 A CN201811450060 A CN 201811450060A CN 109579583 A CN109579583 A CN 109579583A
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- China
- Prior art keywords
- liquid
- working medium
- imitative
- sucking core
- medium passage
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- 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.)
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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
- F28D15/0233—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
Abstract
The invention discloses a kind of ultra-thin imitative blade soaking plates, the upper coverboard and lower coverboard to form sealing working fluid chamber are connected including peripheral sealing, it is vacuumized in the sealing working fluid chamber and filled with liquid refrigerant, it is provided with porous structure in the sealing working fluid chamber and imitates vein liquid-sucking core, the circumferentially alternating compartment of terrain hollow out of starting point is provided with several vein shape steam channels and working medium passage that imitative vein liquid-sucking core edge is extended to by liquid-sucking core center of liquid-sucking core center on the imitative vein liquid-sucking core, each steam channel is connected with the end of working medium passage.The present invention is provided with steam flow channel and working medium return flow line on liquid sucting core structure, liquid-sucking core upper and lower surface is used to support coverboard up and down, it is more suitable for making ultra-thin soaking plate, and its support effect is more preferable, steam channel and working medium return flow line form loop structure, promote the liquid refrigerant refluxed evaporator end of condensation end using steam pressure, delay heating location dryouies phenomenon, to improve the greatest limit heat power of soaking plate.
Description
Technical field
The present invention relates to a kind of soaking plate structure, especially a kind of ultra-thin imitative blade soaking plate is set for portable electronic
Spare heat radiation elements.
Background technique
Existing patent CN103542749 B discloses a kind of bionical soaking plate liquid-sucking core, and the soaking plate is in cold plate imbibition
It machined the fractal structure of imitative plant leaf vein on core, the condensation working medium accelerated on cold plate flows around, then in evaporation plate
Capillarity under refluxed evaporator end.Imitative vein structure is applied to the condensation end of conventional soaking plate by the patent, accelerates condensation
Working medium flows around.Different Plane is set to the soaking plate indistinction of general thickness, vapor chamber and liquid flowing in structure
It is interior, it is unfavorable for improving the heat transfer property of ultra-thin soaking plate.
In addition, existing soaking plate structure is mutually indepedent in same level space for vapor chamber and liquid reflux channel, and
It is supported using structures such as support columns, when the thickness of vapor chamber and wick layer thickness are lower than 0.3mm, the flowing resistance of the two
Power exponentially rises, and severely impacts the heat transfer property of soaking plate, therefore conventional existing soaking plate structure is used for ultra-thin situation,
General who has surrendered is very serious under its heat transfer property.
Surface moisture content is rising under light illumination for plant leaf blade, and vein fractal structure can equably be that whole leaf is defeated from center
The moisture content of evaporation is sent, this requires the uniform temperature for keeping entirety to have similar purpose with ultra-thin soaking plate (center heating), by this
It inspires, designs a kind of ultra-thin soaking plate of imitative blade.
Summary of the invention
The object of the present invention is to provide a kind of ultra-thin imitative blade soaking plates, for solving conventional structure soaking plate in thickness gauge
It is very little to reduce to ultra-thin rear its heat transfer property decline the problem of serious and upper and lower coverboard is easy recess.
The present invention adopts the following technical scheme that realization:
A kind of ultra-thin imitative blade soaking plate connects the upper coverboard and lower coverboard to form sealing working fluid chamber including peripheral sealing, described
It is filled with liquid refrigerant in sealing working fluid chamber and carries out vacuumize process, is provided with upper and lower surfaces in the sealing working fluid chamber
The porous structure for fitting closely coverboard and lower coverboard imitates vein liquid-sucking core, is with liquid-sucking core center on the imitative vein liquid-sucking core
The circumferentially alternating compartment of terrain hollow out of starting point is provided with several leaves that the imitative vein liquid-sucking core edge is extended to by liquid-sucking core center
Veiny steam channel and working medium passage, each steam channel are connected with the end of working medium passage by interconnecting channel.
Further, the steam channel is also provided with and communicated with several symmetrical point shape offshoots, to make steam diffusingsurface
It is wider, improve whole uniform temperature.
Further, working medium passage described in every include one end be connected to the liquid-sucking core center level-one working medium it is logical
Road, the connection level-one working medium passage other end and the second level working medium passage for extending to the imitative vein liquid-sucking core edge, it is described
The width of second level working medium passage is greater than the level-one working medium passage.The larger width of second level working medium passage is in order to lesser
Flow resistance；And level-one working medium passage narrower width, capillary force act on lower liquid refrigerant aggregation, then the steam of evaporation ends can not lead to
It crosses level-one working medium passage to spread to condensation end, promotes liquid refrigerant reflux so as to form loop.
Further, the width of the main vapor channel is greater than the width of level-one working medium passage；The level-one working medium passage
Width≤0.5mm.
Further, the steam channel includes the main vapor channel at one end connection liquid-sucking core center, the connection main steaming
The vapour channel other end and the second steam channel for extending to the imitative vein liquid-sucking core edge.
Further, the imitative vein liquid-sucking core edge is provided with is connected with all steam channels and working medium passage end
Interconnecting channel.After the liquid refrigerant of condensation fills interconnecting channel, steam directly can not flow to working medium by interconnecting channel
Channel, meanwhile, steam pressure generates motive force to the condensation working medium for being gathered in interconnecting channel, by the condensation working medium in interconnecting channel
Liquid-sucking core evaporation ends are pushed to along working medium passage, promote condensation Working fluid flow.
Further, the imitative vein liquid-sucking core edge, which is provided with, several is respectively communicated with adjacent steam channel and working medium passage
The interconnecting channel of end, it is mutually isolated between each interconnecting channel.After the liquid refrigerant of condensation fills interconnecting channel, steam can not
Working medium passage is directly flowed to by interconnecting channel, meanwhile, steam pressure generates the condensation working medium for being gathered in interconnecting channel and pushes away
Condensation working medium in interconnecting channel is pushed to liquid-sucking core evaporation ends along working medium passage, promotes condensation Working fluid flow by power.
Further, the imitative vein liquid-sucking core is round or regular polygon.
Further, the upper surface and/or lower surface of the imitative vein liquid-sucking core are additionally provided with one layer of porous wick structure, with
Improve the amount at condensation working medium refluxed evaporator end.
Further, thickness≤1mm of the imitative vein liquid-sucking core, thickness is thin and heat transfer property is good, meets ultra-thin equal
The cooling requirements of hot plate.
Compared with prior art, the invention has the following beneficial effects:
Steam channel and liquid reflux channel are arranged in same level imitative vein liquid sucting core structure of the invention, and use
Liquid-sucking core supports coverboard up and down, and supporting surface is bigger and structure is simple, and conventional support column arrangement is omitted, makes soaking plate in thickness
On to can be reduced more and support effect more preferable, and compare conventional structure, which can promote condensation end working medium using steam pressure
The capillary limitation of ultra-thin soaking plate is improved at refluxed evaporator end, and delay heating location dryouies phenomenon, to improve ultra-thin soaking plate
Greatest limit heat power.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion of this ultra-thin soaking plate structure.
Fig. 2 is the schematic diagram of this imitative vein liquid sucting core structure.
Fig. 3 is the cell schematics of this imitative vein liquid sucting core structure.
Fig. 4 is the partial cutaway schematic cross-section of this structure.
The imitative vein liquid-sucking core of the upper coverboard of 1-, 2-, 21- liquid-sucking core center, 22- main vapor channel, 23- divide shape offshoot, 24- bis-
Grade steam channel, 25- interconnecting channel, 26- second level working medium passage, 27- level-one working medium passage, 28- porous wick structure, 3- lower casing
Plate.
Specific embodiment
To further understand the present invention, the present invention will be further described with reference to the accompanying drawing.It should be understood that
The scope of protection of present invention is not limited to the range of following embodiment statement.
As shown in Figure 1, a kind of ultra-thin imitative blade soaking plate, connects to be formed in the circle of sealing working fluid chamber including peripheral sealing
Coverboard 1 and lower coverboard 3, the sealing working fluid chamber is interior to be filled with liquid refrigerant and carries out vacuumize process, the sealing working medium
The intracavitary imitative vein liquid-sucking core 2 of rounded porous structure for being provided with upper and lower surfaces and fitting closely coverboard 1 and lower coverboard 3, the circle
Shape imitates thickness≤1mm of vein liquid-sucking core 2.
Specifically, as shown in Fig. 2, with liquid-sucking core center 21 for starting point circumferentially alternating on the imitative vein liquid-sucking core 2
Every ground hollow out be provided with it is several by liquid-sucking core center 21 extend to imitative 2 edge of vein liquid-sucking core vein shape steam channel and
Working medium passage, each steam channel and the end of working medium passage are connected by interconnecting channel 25.
Wherein, working medium passage described in every includes the level-one working medium passage that one end is connected to the liquid-sucking core center 21
27, it is connected to 27 other end of level-one working medium passage and extends to the second level working medium passage 26 at imitative 2 edge of vein liquid-sucking core,
The width of the second level working medium passage 26 is greater than the level-one working medium passage 27, and the width of the level-one working medium passage 27≤
0.5mm。
Every steam channel includes the main vapor channel 22 at one end connection liquid-sucking core center 21, the connection main steam
22 other end of channel and the second steam channel 24 for extending to imitative 2 edge of vein liquid-sucking core, the main vapor channel 22
Width is greater than the width of level-one working medium passage 27.The main vapor channel 22 and second steam channel 24 are also provided with and communicated with several
Symmetrically divide shape offshoot 23.
Imitative 2 edge of vein liquid-sucking core, which is provided with, several is respectively communicated with the mutual of adjacent steam channel and working medium passage end
Communication channel 25, it is mutually isolated between each interconnecting channel 25.
As shown in figure 4, the lower surface of the upper coverboard 1 and the upper surface of lower coverboard 3 fit closely imitative vein imbibition respectively
Core 2 is provided by it support.When work, chip is adjacent at the center of coverboard, as shown in Fig. 2, chip at liquid-sucking core center 21 to adding
Heat, the liquid refrigerant phase transformation evaporation in the position, by each main vapor channel 22 to edge-diffusion to each second steam channel
24 and each point of shape offshoot 23, each point of shape offshoot 23 plays the whole uniform temperature of raising, suitably can accelerate or remove, described
Second steam channel 24 and second level working medium passage 26 are connected by interconnecting channel 25, and when work, steam is in imitative vein liquid-sucking core
Outer rim phase transformation is condensed into liquid refrigerant, is filled up completely interconnecting channel 25, flow to steam can not directly by interconnecting channel 25
Second level working medium passage 26, the level-one working medium passage 27 are narrow slot road, so that liquid refrigerant is filled up completely under capillary force effect
Level-one working medium passage 27, so that the steam of phase transformation can not be spread by level-one working medium passage 27 to outer rim at liquid-sucking core center 21.
It is illustrated in figure 3 the flow schematic diagram of local unit steam and working medium, is represented from liquid-sucking core center 21 to the arrow of edge flowing
Be steam flow direction, from edge to the arrow of center flow represent is condense working medium flow direction.Liquid refrigerant
Except by porous wick structure 28 under capillary force effect in addition to refluxed evaporator end, since heat source is in the center (temperature of soaking plate
Higher than periphery), therefore the steam pressure of soaking plate center is maximum, pressure difference makes steam to expansion at edge low temperature low pressure
It dissipates, since interconnecting channel 25 is filled up completely by the working medium of condensation, steam pressure generates motive force to the condensation working medium at this at this time,
Condensation working medium in interconnecting channel 21 is pushed to evaporation ends, i.e. liquid-sucking core along second level working medium passage 26 and level-one working medium passage 27
Center 21 promotes the liquid refrigerant refluxed evaporator end of condensation end, and delay heating location dryouies phenomenon, to improve ultra-thin soaking plate
Greatest limit heat power.
Embodiment two
The difference between this embodiment and the first embodiment lies in:
Imitative 2 edge of vein liquid-sucking core is provided with the interconnecting channel being connected with all steam channels and working medium passage end
25.After the liquid refrigerant of condensation fills interconnecting channel, steam directly can not flow to working medium passage by interconnecting channel, together
When, steam pressure generates motive force to the condensation working medium for being gathered in interconnecting channel, by the condensation working medium in interconnecting channel along working medium
Channel is pushed to liquid-sucking core evaporation ends, promotes condensation Working fluid flow.
Embodiment three
The present embodiment is in the difference of embodiment one and two:
It is additionally provided with one layer of porous wick structure in the upper surface of the imitative vein liquid-sucking core 2 and/or lower surface, to improve condensation work
The thickness of the amount at matter refluxed evaporator end, the porous wick structure can be under the premise of excessively not increasing soaking version overall thickness according to need
Suitably selected.
The above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to the present invention
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all of the invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the protection of the claims in the present invention within spirit and principle
Within the scope of.
Claims (10)
1. a kind of ultra-thin imitative blade soaking plate, the upper coverboard (1) and lower coverboard to form sealing working fluid chamber are connected including peripheral sealing
(3), it is filled with liquid refrigerant in the sealing working fluid chamber and carries out vacuumize process, it is characterised in that:
Be provided in the sealing working fluid chamber upper and lower surfaces fit closely coverboard (1) and lower coverboard (3) porous structure it is imitative
Vein liquid-sucking core (2), with liquid-sucking core center (21) for the circumferentially alternating compartment of terrain hollow out of starting point on the imitative vein liquid-sucking core (2)
It is provided with several vein shape steam channels and working medium that imitative vein liquid-sucking core (2) edge is extended to by liquid-sucking core center (21)
Channel, each steam channel and the end of working medium passage are connected by interconnecting channel (25).
2. ultra-thin imitative blade soaking plate according to claim 1, which is characterized in that the steam channel is also provided with and communicated with
It is several symmetrically to divide shape offshoot (23).
3. ultra-thin imitative blade soaking plate according to claim 1, which is characterized in that working medium passage described in every includes
One end be connected to the level-one working medium passage (27) of the liquid-sucking core center (21), connection level-one working medium passage (27) other end and
The second level working medium passage (26) at imitative vein liquid-sucking core (2) edge is extended to, the width of the second level working medium passage (26) is big
In the level-one working medium passage (27).
4. ultra-thin imitative blade soaking plate according to claim 3, which is characterized in that every steam channel includes one end
It is connected to the main vapor channel (22) of liquid-sucking core center (21), is connected to main vapor channel (22) other end and is extended to described imitative
The second steam channel (24) at vein liquid-sucking core (2) edge.
5. ultra-thin soaking plate according to claim 4, which is characterized in that the width of the main vapor channel (22) is greater than one
The width of grade working medium passage (27)；Width≤0.5mm of the level-one working medium passage (27).
6. ultra-thin imitative blade soaking plate according to claim 1, which is characterized in that imitative vein liquid-sucking core (2) edge
It is provided with the interconnecting channel (25) being connected with all steam channels and working medium passage end.
7. ultra-thin imitative blade soaking plate according to claim 1, which is characterized in that imitative vein liquid-sucking core (2) edge
Several interconnecting channels (25) for being respectively communicated with adjacent steam channel and working medium passage end are provided with, between each interconnecting channel (25)
It is mutually isolated.
8. ultra-thin imitative blade soaking plate according to claim 1, which is characterized in that the imitative vein liquid-sucking core (2) is circle
Shape or regular polygon.
9. ultra-thin imitative blade soaking plate according to claim 1, which is characterized in that the imitative vein liquid-sucking core (2) it is upper
Surface and/or lower surface are additionally provided with one layer of porous wick structure.
10. ultra-thin imitative blade soaking plate according to claim 1, which is characterized in that the thickness of the imitative vein liquid-sucking core (2)
Degree≤1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811450060.8A CN109579583A (en) | 2018-11-30 | 2018-11-30 | A kind of ultra-thin imitative blade soaking plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811450060.8A CN109579583A (en) | 2018-11-30 | 2018-11-30 | A kind of ultra-thin imitative blade soaking plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109579583A true CN109579583A (en) | 2019-04-05 |
Family
ID=65924089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811450060.8A Pending CN109579583A (en) | 2018-11-30 | 2018-11-30 | A kind of ultra-thin imitative blade soaking plate |
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| Country | Link |
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| CN (1) | CN109579583A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141758A (en) * | 2021-04-12 | 2021-07-20 | 江西展耀微电子有限公司 | Vapor chamber, manufacturing method thereof and electronic equipment |
| WO2023003018A1 (en) * | 2021-07-20 | 2023-01-26 | 大日本印刷株式会社 | Vapor chamber, wick sheet for vapor chamber, and electronic apparatus |
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| CN102811590A (en) * | 2012-07-31 | 2012-12-05 | 华南理工大学 | Wick structure for vapor chamber |
| CN103542749A (en) * | 2013-10-15 | 2014-01-29 | 华南理工大学 | Simulated liquid absorbing core for heat uniformizing plate |
| CN106152846A (en) * | 2016-07-09 | 2016-11-23 | 南京艾科美热能科技有限公司 | A kind of circulating gas-liquid two-phase flow phase change heat exchanger |
| CN107401941A (en) * | 2017-08-28 | 2017-11-28 | 华南理工大学 | A kind of ultra-thin soaking plate structure |
| CN108444324A (en) * | 2018-06-22 | 2018-08-24 | 广东工业大学 | A kind of soaking plate |
| CN209763828U (en) * | 2018-11-30 | 2019-12-10 | 华南理工大学 | Ultra-thin flat heat pipe of imitative plant leaf structure |
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2018
- 2018-11-30 CN CN201811450060.8A patent/CN109579583A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811590A (en) * | 2012-07-31 | 2012-12-05 | 华南理工大学 | Wick structure for vapor chamber |
| CN103542749A (en) * | 2013-10-15 | 2014-01-29 | 华南理工大学 | Simulated liquid absorbing core for heat uniformizing plate |
| CN106152846A (en) * | 2016-07-09 | 2016-11-23 | 南京艾科美热能科技有限公司 | A kind of circulating gas-liquid two-phase flow phase change heat exchanger |
| CN107401941A (en) * | 2017-08-28 | 2017-11-28 | 华南理工大学 | A kind of ultra-thin soaking plate structure |
| CN108444324A (en) * | 2018-06-22 | 2018-08-24 | 广东工业大学 | A kind of soaking plate |
| CN209763828U (en) * | 2018-11-30 | 2019-12-10 | 华南理工大学 | Ultra-thin flat heat pipe of imitative plant leaf structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141758A (en) * | 2021-04-12 | 2021-07-20 | 江西展耀微电子有限公司 | Vapor chamber, manufacturing method thereof and electronic equipment |
| WO2023003018A1 (en) * | 2021-07-20 | 2023-01-26 | 大日本印刷株式会社 | Vapor chamber, wick sheet for vapor chamber, and electronic apparatus |
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