CN113606972A - Flexible ultrathin soaking plate and preparation method thereof - Google Patents
Flexible ultrathin soaking plate and preparation method thereof Download PDFInfo
- Publication number
- CN113606972A CN113606972A CN202110692985.9A CN202110692985A CN113606972A CN 113606972 A CN113606972 A CN 113606972A CN 202110692985 A CN202110692985 A CN 202110692985A CN 113606972 A CN113606972 A CN 113606972A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- flexible
- layer
- flexible cover
- micro
- 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
Images
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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
Abstract
The invention discloses a flexible ultrathin soaking plate, wherein an upper flexible cover plate is composed of a high-heat-conductivity flexible graphite composite film, and a lower flexible cover plate is composed of a copper foil. The inner side of the lower flexible cover plate is provided with a capillary liquid absorption core structure, the lower layer of the lower flexible cover plate is composed of an evaporation end micro-cylinder array, a heat insulation section and a condensation end micro-groove array, the middle layer is a fine wire mesh, and the upper layer is a coarse wire mesh. During preparation, the lower micro-cylinder and the micro-groove array of the capillary wick are obtained by etching process and then sintered with the middle fine wire mesh and the upper coarse wire mesh into a whole; and a sealed cavity is formed between the upper flexible cover plate and the lower flexible cover plate through the periphery of the sealed edge, and the sealed cavity is sealed after the sealed cavity is vacuumized and filled with working medium. The invention has simple structure and process, convenient manufacture, good flexibility, repeated bending, small volume, light weight and strong heat conductivity, and can well solve the heat dissipation problem of foldable, curved and flexible electronic equipment. The invention also provides a preparation method of the flexible ultrathin soaking plate.
Description
Technical Field
The invention relates to a flexible ultrathin soaking plate and a preparation method thereof, belonging to the field of heat transfer and dissipation devices.
Background
Along with the development of integrated circuit technology, the degree of integration, miniaturization and multi-functionalization of electronic devices is higher and higher, and the heat flux density of the electronic devices is also higher and higher, so that a large amount of heat is gathered in the narrow space of the electronic product during working, and the use safety, reliability and service life of the electronic product are seriously affected if the heat cannot be discharged in time. The problem of efficient heat dissipation of electronic devices becomes a bottleneck restricting the development of electronic products. The vapor chamber is used as a gas-liquid two-phase radiating element, and the rapid dissipation of local heat is realized by utilizing the gas-liquid two-phase circulation of working media in the closed cavity, so that the high-efficiency heat management is realized, the safety and the reliability of an electronic product are obviously improved, and the service life of the electronic product is obviously prolonged.
In recent years, electronic products are developed towards being light, thin, foldable and flexible, such as folding mobile phones, flexible display screens and the like, and the problems of flexibility and ultrathin heat dissipation of the novel electronic products are urgently solved. The traditional vapor chamber is of a rigid structure, the liquid absorbing core is usually sintered copper powder or a copper mesh, the pipe shell is made of metal materials such as copper and aluminum, the pipe shell cannot be bent or folded repeatedly, cannot be completely attached to the surface of a curved-surface heat source, is thick in size and large in mass, and cannot meet the heat dissipation requirements of light, thin, foldable and flexible electronic products.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the flexible ultrathin soaking plate with ultrathin property, high flexibility and high heat conductivity and the manufacturing method thereof.
The invention adopts the following technical scheme: a flexible ultrathin vapor chamber comprises an upper flexible cover plate, a lower flexible cover plate, a capillary liquid absorption core and a liquid working medium; one side of the lower flexible cover plate facing the upper flexible cover plate is distributed with the capillary liquid absorption cores;
the capillary liquid absorption core is divided into a lower layer, a middle layer and an upper layer; the lower layer comprises a micro-cylinder array at an evaporation end, a heat insulation section and micro grooves arranged in parallel at a condensation end; the evaporation end, the heat insulation section and the condensation end are sequentially arranged along the length direction of the lower flexible cover plate; the middle layer is a fine wire mesh, and the upper layer is a coarse wire mesh;
the lower flexible cover plate is a copper foil, and the upper flexible cover plate is a high-heat-conductivity flexible graphite composite film; and a sealed cavity is formed between the upper flexible cover plate and the lower flexible cover plate through the periphery of the sealing edge, and the liquid working medium is filled in the sealed cavity.
In a preferred embodiment, the high thermal conductivity flexible graphite composite film comprises at least two polymer layers and a graphite layer, wherein the graphite layer is positioned between the polymer layers; the polymer layer is connected with the graphite layer through an adhesive layer.
In a preferred embodiment, the material of the polymer layer is one of polyethylene terephthalate, polyimide, and polyurethane.
In a preferred embodiment, the thickness of the polymer layer is 0.017-0.02mm, the thickness of the graphite layer is 0.022-0.028mm, and the thickness of the bonding layer is 0.002-0.005 mm.
In a preferred embodiment, the thickness of the copper foil is 0.1-0.15 mm.
In a preferred embodiment, the fine mesh is 300-500 mesh purple copper mesh, and the coarse mesh is 50-100 mesh high molecular polymer mesh.
In a preferred embodiment, the diameter of the micro-cylinder is 0.4-0.45mm, and the height is 0.05-0.08 mm; the distance between the adjacent micro cylinders is 0.2-0.25 mm; the micro groove is a rectangular groove, the width is 0.1-0.15mm, and the height is 0.05-0.08 mm; the distance between adjacent micro grooves is 0.4-0.45 mm.
The invention also provides a preparation method of the flexible ultrathin soaking plate, which comprises the following steps:
(1) adopting heat-conducting glue to bond and connect the graphite layer and the polymer layers on the two sides to form a high-heat-conducting flexible graphite composite film as an upper flexible cover plate;
(2) selecting a copper foil as a lower flexible cover plate; preparing an evaporating end micro-cylinder array, a middle heat insulation section and a right side condensing end micro-groove array which are sequentially arranged along the length direction on the copper foil by an etching process; a sintering process is adopted, and the middle-layer fine wire mesh and the upper-layer coarse wire mesh are firmly combined with the micro-cylinder array and the micro-groove array to form a capillary liquid absorption core structure;
(3) forming a closed cavity between the upper flexible cover plate and the lower flexible cover plate through the periphery of the sealing edge;
(4) and vacuumizing the sealed cavity by using a liquid filling pipe, filling working medium, and finally sealing the liquid filling pipe.
In a preferred embodiment, in step (3), the sealing manner includes adhesive bonding sealing, soldering sealing, and hot pressing sealing after filling solder.
In a preferred embodiment, in step (4), the sealing manner includes ultrasonic welding, cold welding or argon arc welding.
Compared with the prior art, the flexible ultrathin soaking plate provided by the invention has the following beneficial effects:
(1) the flexible ultrathin soaking plate cover plate consists of a high-heat-conductivity flexible graphite composite film and copper foil, and the cover plate material has excellent heat-conducting property; the capillary liquid absorption core is formed by combining micro-columns, grooves and a wire mesh, has excellent comprehensive capillary performance, and can realize quick dissipation of local heat source heat through quick gas-liquid phase change circulation.
(2) The flexible ultrathin soaking plate cover plate, the liquid absorbing core and the supporting structure have good flexibility, can be bent repeatedly, can be in good contact with a curved surface heat source, can reduce contact thermal resistance, and are particularly suitable for heat dissipation of flexible screens and folding screen electronic devices.
(3) The flexible ultrathin soaking plate is light in weight, thin in volume and simple to manufacture, and is very suitable for effective heat management of electronic products with narrow space and heat sources with high heat flow density.
Drawings
Fig. 1 is an explosion schematic diagram of a flexible ultrathin soaking plate according to an embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of a flexible ultra-thin vapor chamber according to an embodiment of the invention.
FIG. 3 is a schematic diagram of materials of each layer of the high thermal conductivity flexible graphite composite film according to the embodiment of the invention.
Fig. 1 to 3 include: 1-upper flexible cover plate, 11-polymer layer, 12-adhesive layer, 13-graphite layer, 2-lower flexible cover plate, 3-capillary wick, 31-micro-cylinder array, 32-micro-groove array, 33-middle layer fine wire mesh, 34-upper layer coarse wire mesh, and 4-liquid filling pipe.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, the flexible ultrathin soaking plate comprises an upper flexible cover plate 1, a lower flexible cover plate 2, a capillary wick 3 and a liquid filling pipe 4. And a sealed cavity is formed between the upper flexible cover plate 1 and the lower flexible cover plate 2 through the periphery of the sealing edge, and liquid working media are filled in the sealed cavity.
The inner side of the lower flexible cover plate 2 is distributed with a capillary liquid absorption core 3, and the capillary liquid absorption core 3 is divided into a lower middle layer and an upper layer. Wherein the lower layer is composed of a micro-cylinder array 31 of an evaporation end, a heat insulation section and a micro-groove array 32 of a condensation end which are arranged in parallel along the length direction of the lower flexible cover plate 2 in sequence, the middle layer is a fine wire mesh 33, and the upper layer is a coarse wire mesh 34.
The liquid filling pipe 4 is arranged at the micro-cylinder array at the evaporation end, is made of red copper and has the outer diameter of 0.5-1 mm.
As shown in fig. 3, the upper flexible cover plate 1 is composed of a high thermal conductivity flexible graphite composite film, which at least includes two polymer layers 11 and a graphite layer 13, wherein the graphite layer 13 is located between the polymer layers 11; the polymer layer is made of one of polyethylene terephthalate, polyimide and polyurethane; the polymer layer and the graphite layer are bonded through a bonding layer 12, and the bonding layer 12 is heat-conducting glue in the embodiment.
Preferably, the thickness of the high heat conduction flexible graphite composite film is 0.06-0.077mm, the thickness of the polymer layers 11 at two sides is 0.017-0.02mm, the thickness of the middle graphite layer 13 is 0.022-0.028mm, and the thickness of the bonding layer 12 between the polymer layers 11 and the graphite layer 13 is 0.002-0.005 mm.
The lower flexible cover plate 2 is a copper foil with the thickness of 0.1-0.15mm, and a micro-cylinder array 31 of an evaporation end, a middle heat insulation section and a micro-groove array 32 of a condensation end which are arranged in parallel are distributed in the copper foil; the micro-cylinder array 31 can increase the heat transfer area of an evaporation end and promote gas-liquid phase change heat transfer; the micro-groove array 32 has the advantages of low flow resistance and high permeability, is arranged below the middle-layer fine wire mesh, provides a good channel for the condensed working medium to quickly flow back to the left evaporation end from the right condensation end, and ensures the quick circulation of gas phase and liquid phase in the vapor chamber.
The diameter of the micro-cylinder array 31 at the left evaporation end of the capillary wick 3 is preferably 0.4-0.45mm, the micro-cylinder spacing is preferably 0.2-0.25mm, and the height is preferably 0.05-0.08 mm; the micro-groove array 32 is preferably a rectangular groove, preferably 0.1-0.15mm in width, 0.4-0.45mm in pitch, and 0.05-0.08mm in height.
The intermediate layer fine mesh 33 of the capillary wick 3 is preferably a 300-500 mesh violet copper mesh. The upper layer thick silk screen 34 of the capillary wick 3 is preferably a high molecular polymer silk screen with 50-100 meshes, is used as a supporting structure of the flexible ultrathin soaking plate, provides a channel for steam flow while bearing atmospheric pressure, is used as a flow guide structure for guiding liquid working medium to rapidly flow back, and has good flexibility. The position and area of the coarse screen 34 correspond to those of the intermediate fine screen 33.
The copper foil and the fine wire mesh 33 adopted by the lower flexible cover plate 2 are preferably made of red copper materials, and the size is selected according to the actual application requirement; the same red copper material can make the physical parameters of all parts in the heat pipe consistent, and has good compatibility.
The invention also aims to provide a preparation method of the flexible ultrathin soaking plate, which comprises the following steps:
(1) the two polymer layers 11 and the graphite layer 13 are bonded into a whole by adopting heat-conducting glue 12 to form a high-heat-conductivity flexible graphite composite film of the middle graphite layer and the two polymer layers as the upper flexible cover plate 1.
(2) Selecting copper foil as a lower flexible cover plate 2; processing an evaporating end micro-cylinder array 31, a heat insulating section and a condensing end micro-groove array 32 which are sequentially arranged along the length direction of the copper foil on the inner side of the copper foil through an etching process; and (3) firmly combining the middle-layer fine wire mesh 33 and the upper-layer coarse wire mesh 34 with the micro-cylinder array 31 and the micro-groove array 32 through a sintering process to form the capillary wick 3. The preparation method comprises the following specific steps:
step 1), cutting the flexible cover plate 2 below the red copper foil to be 40mm multiplied by 100mm, cutting the fine screen 33 and the coarse screen 34 to be 30mm multiplied by 90mm, respectively ultrasonically cleaning 5-30 min with acetone, dilute hydrochloric acid and deionized water, and drying in vacuum for later use.
And 2), fixing the lower flexible cover plate 2, and performing screen printing by adopting alkali-soluble acid-resistant ink.
And 3) putting the micro-cylinder array 31 and the micro-groove array 32 into chemical etching liquid at the temperature of 40-45 ℃ to react for 10-15 min.
And step 4), dipping 5-8 min in a sodium hydroxide solution with the temperature of 50-60 ℃ and the concentration of 1-1.5 mol/L, and removing silk-screen printing ink to obtain the micro-cylinder array 31 and the micro-groove array 32.
And 5), cleaning and drying the lower flexible cover plate 2 with the micro-cylinder array 31 and the micro-groove array 32.
And 6) tightly pressing the lower flexible cover plate and the fine wire mesh 33 together through a graphite mould, and sintering the lower flexible cover plate and the fine wire mesh 33 in a nitrogen-hydrogen mixed gas (95% N2, 5% H2) at 900 ℃ for 30-60 min to firmly combine the middle-layer fine wire mesh 33 and the upper-layer coarse wire mesh 34 with the micro-cylinder array 31 and the micro-groove array 32 to form the capillary wick 3.
(3) One end of a liquid filling pipe 4 is arranged at the left evaporation end, the other end of the liquid filling pipe is arranged outside the flexible cover plate, and the length of the liquid filling pipe is reserved to be 2-4 mm; after the upper flexible cover plate 1 and the lower flexible cover plate 2 are arranged in an aligned mode, a sealed cavity is formed around the sealed edge. The sealing method includes, but is not limited to, adhesive bonding sealing, welding sealing, and hot-pressing sealing after filling adhesive layer, preferably, hot-pressing sealing after filling adhesive layer, and the sealing gap between the liquid charging pipe 5 and the upper flexible cover plate 1 and the lower flexible cover plate 2 is filled with epoxy resin.
(4) The flexible ultrathin soaking plate is subjected to leakage inspection, and if air leaks, leakage repairing and sealing are carried out until no leakage occurs; vacuumizing and filling liquid working medium through a liquid filling pipe 4, wherein the working medium is deionized water in the embodiment; and sealing the liquid charging pipe by adopting one of ultrasonic welding, cold welding or argon arc welding.
The invention has the structural characteristics that: the upper cover plate adopts the high-heat-conductivity flexible graphite composite membrane, so that the rapid heat conduction and diffusion are facilitated, and the excellent flexibility and the good air tightness are both considered; the micro-cylinder array structure 31 provides a large liquid film evaporation area for the capillary wick 3, the micro-groove array structure 32 provides good permeability and promotes rapid backflow of condensed liquid, and the fine wire mesh 33 is used to further improve the capillary force and the gravity resistance of the capillary wick 3; the thick silk screen 34 is used as a supporting structure, so that the steam can be quickly diffused and circulated, condensed working media can timely flow back, the manufacturing and the installation are simple, and the supporting is more uniform; the comprehensive effect of the characteristics obviously improves the heat transfer limit and the service performance of the flexible ultrathin soaking plate.
The working principle of the invention is as follows: the evaporation end of the flexible ultrathin soaking plate is arranged at a heat source, the interior of the heat pipe is in a negative pressure state, and the working medium is heated and is easy to evaporate and gasify; after the working medium is evaporated, the working medium moves to a condensation end under the action of steam pressure, heat is released when the working medium is cooled, the steam working medium is condensed into a liquid state, and the heat is taken away through a heat sink and the like; the condensed liquid working medium flows back to the right side condensation end micro-groove array structure 32 along the coarse wire mesh 34 and the fine wire mesh 33, and quickly flows back to the left side evaporation end to participate in the next gas-liquid phase change cycle. When the heat pipe normally works, the internal working medium continuously and circularly flows, and the heat of the heat source is continuously taken away.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. A flexible ultrathin soaking plate is characterized in that: the capillary liquid absorption device comprises an upper flexible cover plate, a lower flexible cover plate, a capillary liquid absorption core and a liquid working medium; one side of the lower flexible cover plate facing the upper flexible cover plate is distributed with the capillary liquid absorption cores;
the capillary liquid absorption core is divided into a lower layer, a middle layer and an upper layer; the lower layer comprises a micro-cylinder array at an evaporation end, a heat insulation section and micro grooves arranged in parallel at a condensation end; the evaporation end, the heat insulation section and the condensation end are sequentially arranged along the length direction of the lower flexible cover plate; the middle layer is a fine wire mesh, and the upper layer is a coarse wire mesh;
the lower flexible cover plate is a copper foil, and the upper flexible cover plate is a high-heat-conductivity flexible graphite composite film; and a sealed cavity is formed between the upper flexible cover plate and the lower flexible cover plate through the periphery of the sealing edge, and the liquid working medium is filled in the sealed cavity.
2. A flexible ultra-thin soaking plate according to claim 1, wherein said high thermal conductivity flexible graphite composite film comprises at least two polymer layers and one graphite layer, said graphite layer is located between said polymer layers; the polymer layer is connected with the graphite layer through an adhesive layer.
3. A flexible ultra-thin soaking plate according to claim 2, characterized in that the material of the polymer layer is one of polyethylene terephthalate, polyimide and polyurethane.
4. A flexible ultra-thin soaking plate according to claim 2, characterized in that the thickness of said polymer layer is 0.017-0.02mm, the thickness of said graphite layer is 0.022-0.028mm, and the thickness of said bonding layer is 0.002-0.005 mm.
5. A flexible ultra-thin soaking plate according to claim 1, wherein the thickness of said copper foil is 0.1-0.15 mm.
6. The flexible ultrathin soaking plate as claimed in claim 1, wherein the fine mesh is 300-500 mesh purple copper mesh, and the coarse mesh is 50-100 mesh high molecular polymer mesh.
7. A flexible ultra-thin soaking plate according to claim 1, wherein the diameter of said micro-cylinder is 0.4-0.45mm, and the height is 0.05-0.08 mm; the distance between the adjacent micro cylinders is 0.2-0.25 mm; the micro groove is a rectangular groove, the width is 0.1-0.15mm, and the height is 0.05-0.08 mm; the distance between adjacent micro grooves is 0.4-0.45 mm.
8. A method for preparing a flexible ultra-thin soaking plate according to any one of claims 1 to 7, characterized by comprising the following steps:
(1) adopting heat-conducting glue to bond and connect the graphite layer and the polymer layers on the two sides to form a high-heat-conducting flexible graphite composite film as an upper flexible cover plate;
(2) selecting a copper foil as a lower flexible cover plate; preparing an evaporating end micro-cylinder array, a middle heat insulation section and a right side condensing end micro-groove array which are sequentially arranged along the length direction on the copper foil by an etching process; a sintering process is adopted, and the middle-layer fine wire mesh and the upper-layer coarse wire mesh are firmly combined with the micro-cylinder array and the micro-groove array to form a capillary liquid absorption core structure;
(3) forming a closed cavity between the upper flexible cover plate and the lower flexible cover plate through the periphery of the sealing edge;
(4) and vacuumizing the sealed cavity by using a liquid filling pipe, filling working medium, and finally sealing the liquid filling pipe.
9. The method for preparing a flexible ultrathin soaking plate according to claim 8, wherein in the step (3), the sealing mode comprises adhesive bonding sealing, welding sealing and hot pressing sealing after filling solder.
10. The method for preparing a flexible ultrathin soaking plate according to claim 8, wherein in the step (4), the sealing manner comprises ultrasonic welding sealing, cold welding sealing or argon arc welding sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110692985.9A CN113606972B (en) | 2021-06-22 | 2021-06-22 | Preparation method of flexible ultrathin vapor chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110692985.9A CN113606972B (en) | 2021-06-22 | 2021-06-22 | Preparation method of flexible ultrathin vapor chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113606972A true CN113606972A (en) | 2021-11-05 |
| CN113606972B CN113606972B (en) | 2023-09-22 |
Family
ID=78336713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110692985.9A Active CN113606972B (en) | 2021-06-22 | 2021-06-22 | Preparation method of flexible ultrathin vapor chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113606972B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234690A (en) * | 2021-12-29 | 2022-03-25 | 大连理工大学 | High-molecular polymer liquid absorption core and high-molecular polymer liquid absorption core loop heat pipe |
| CN114413669A (en) * | 2022-02-08 | 2022-04-29 | 郭鹏杰 | Liquid absorption core, phase change heat transfer device and preparation method |
| CN114543567A (en) * | 2022-02-25 | 2022-05-27 | 中国商用飞机有限责任公司 | Valve cooling assembly |
| CN114993083A (en) * | 2022-05-24 | 2022-09-02 | 武汉理工大学 | Visual ultrathin flexible vapor chamber for low-temperature process and preparation method thereof |
| CN115406278A (en) * | 2022-09-02 | 2022-11-29 | 昆明理工大学 | Spiral support column-liquid absorption core integrated sintered vapor chamber and preparation method thereof |
| CN115549394A (en) * | 2022-10-14 | 2022-12-30 | 广东畅能达科技发展有限公司 | Heat dissipation device based on embedded soaking plate type U-shaped linear motor |
| CN116625149A (en) * | 2023-06-16 | 2023-08-22 | 广州大学 | Composite liquid suction core unidirectional heat pipe and processing method thereof |
| CN117042422A (en) * | 2023-10-10 | 2023-11-10 | 歌尔股份有限公司 | Temperature equalizing plate and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040034014A (en) * | 2002-10-16 | 2004-04-28 | 엘지전선 주식회사 | Flat plate heat transferring apparatus and manufacturing method thereof |
| CN201954995U (en) * | 2010-12-16 | 2011-08-31 | 昆山长运电子工业有限公司 | Heat pipe with radial conduction |
| CN108017911A (en) * | 2017-12-06 | 2018-05-11 | 中国科学院山西煤炭化学研究所 | A kind of heat conduction connecting material and preparation method based on graphite/polymer complex structure |
| US20180187987A1 (en) * | 2015-08-31 | 2018-07-05 | Jiangsu Cnano Technology Co., Ltd. | Thermally conductive structure and heat dissipation device |
-
2021
- 2021-06-22 CN CN202110692985.9A patent/CN113606972B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040034014A (en) * | 2002-10-16 | 2004-04-28 | 엘지전선 주식회사 | Flat plate heat transferring apparatus and manufacturing method thereof |
| US20060124280A1 (en) * | 2002-10-16 | 2006-06-15 | Young-Duck Lee | Flat plate heat transferring apparatus and manufacturing method thereof |
| CN201954995U (en) * | 2010-12-16 | 2011-08-31 | 昆山长运电子工业有限公司 | Heat pipe with radial conduction |
| US20180187987A1 (en) * | 2015-08-31 | 2018-07-05 | Jiangsu Cnano Technology Co., Ltd. | Thermally conductive structure and heat dissipation device |
| CN108017911A (en) * | 2017-12-06 | 2018-05-11 | 中国科学院山西煤炭化学研究所 | A kind of heat conduction connecting material and preparation method based on graphite/polymer complex structure |
Non-Patent Citations (1)
| Title |
|---|
| 许乐: "超薄柔性平板热管的制备及其传热性能研究" * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234690A (en) * | 2021-12-29 | 2022-03-25 | 大连理工大学 | High-molecular polymer liquid absorption core and high-molecular polymer liquid absorption core loop heat pipe |
| CN114234690B (en) * | 2021-12-29 | 2022-10-28 | 大连理工大学 | High-molecular polymer liquid absorption core and high-molecular polymer liquid absorption core loop heat pipe |
| CN114413669A (en) * | 2022-02-08 | 2022-04-29 | 郭鹏杰 | Liquid absorption core, phase change heat transfer device and preparation method |
| CN114543567A (en) * | 2022-02-25 | 2022-05-27 | 中国商用飞机有限责任公司 | Valve cooling assembly |
| CN114543567B (en) * | 2022-02-25 | 2022-10-11 | 中国商用飞机有限责任公司 | Valve cooling assembly |
| CN114993083A (en) * | 2022-05-24 | 2022-09-02 | 武汉理工大学 | Visual ultrathin flexible vapor chamber for low-temperature process and preparation method thereof |
| CN114993083B (en) * | 2022-05-24 | 2024-01-26 | 武汉理工大学 | Low-temperature process visual ultrathin flexible vapor chamber and preparation method thereof |
| CN115406278A (en) * | 2022-09-02 | 2022-11-29 | 昆明理工大学 | Spiral support column-liquid absorption core integrated sintered vapor chamber and preparation method thereof |
| CN115549394A (en) * | 2022-10-14 | 2022-12-30 | 广东畅能达科技发展有限公司 | Heat dissipation device based on embedded soaking plate type U-shaped linear motor |
| CN116625149A (en) * | 2023-06-16 | 2023-08-22 | 广州大学 | Composite liquid suction core unidirectional heat pipe and processing method thereof |
| CN117042422A (en) * | 2023-10-10 | 2023-11-10 | 歌尔股份有限公司 | Temperature equalizing plate and electronic equipment |
| CN117042422B (en) * | 2023-10-10 | 2023-12-22 | 歌尔股份有限公司 | Temperature equalizing plate and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113606972B (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113606972B (en) | Preparation method of flexible ultrathin vapor chamber | |
| US10544994B2 (en) | Sheet-shaped heat pipe | |
| CN104896983B (en) | Manufacturing method of soaking plate with ultrathin foam silver as liquid absorbing core | |
| CN113465430B (en) | Ultrathin thermal diode based on gas-liquid coplanar structure and preparation method thereof | |
| TWI542850B (en) | Flat plate heat pipe structure and manufacturing method thereof | |
| WO2021203825A1 (en) | Heat dissipation device, preparation method for heat dissipation device, and electronic apparatus | |
| CN104764350A (en) | Method for manufacturing uniform-heating plate with foam copper as liquid absorption core | |
| EP3815815A1 (en) | Vapor chamber and capillary film thereof | |
| US20120305223A1 (en) | Thin heat pipe structure and manufacturing method thereof | |
| CN104792205A (en) | Manufacturing method of hierarchical-structured foamy copper soaking plate with combinational design | |
| CN110763062A (en) | Heat conduction and heat dissipation integrated flat heat pipe | |
| JP2001165584A (en) | Sheet type heat pipe | |
| CN112595155A (en) | Foldable temperature equalization plate and foldable electronic equipment | |
| CN112648870A (en) | Manufacturing process of lightweight uniform temperature plate and uniform temperature plate | |
| CN113498295B (en) | Ultrathin soaking plate, preparation method thereof and electronic equipment | |
| CN211012603U (en) | Ultrathin flexible flat heat pipe | |
| JP5112374B2 (en) | Heat dissipating device for electronic equipment and manufacturing method thereof | |
| CN215832540U (en) | Ultra-light high-performance copper-aluminum composite soaking plate | |
| CN207963588U (en) | A kind of sintered combined liquid-sucking core flat-plate heat pipe of radial groove | |
| US10036599B1 (en) | Thermal energy storage assembly | |
| CN113950232B (en) | Manufacturing method of heat conduction device, heat conduction device and terminal equipment | |
| CN112696957A (en) | Flexible soaking plate and manufacturing method thereof | |
| CN210808045U (en) | Hot-pressing type flexible phase change soaking zone/plate based on polymer film | |
| CN110149784A (en) | Radiating subassembly and electronic equipment | |
| CN116182608A (en) | Temperature equalizing plate with fine structure layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |