CN110966880A - Ultrathin soaking plate and manufacturing method thereof - Google Patents
Ultrathin soaking plate and manufacturing method thereof Download PDFInfo
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- CN110966880A CN110966880A CN201911053558.5A CN201911053558A CN110966880A CN 110966880 A CN110966880 A CN 110966880A CN 201911053558 A CN201911053558 A CN 201911053558A CN 110966880 A CN110966880 A CN 110966880A
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- 238000002791 soaking Methods 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 90
- 238000003466 welding Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 abstract description 15
- 230000017525 heat dissipation Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000005219 brazing Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000010147 laser engraving Methods 0.000 description 2
- 238000010329 laser etching Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 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
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
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- 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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses an ultrathin soaking plate and a manufacturing method thereof.A first groove and a first reinforcing rib are processed on a first cover plate, a second groove and a second reinforcing rib are processed on a second cover plate, and the first reinforcing rib and the second reinforcing rib can be symmetrically connected; attaching a wick to the inner surface of the first cover plate or the second cover plate, and then attaching the first cover plate and the second cover plate to each other to form a cavity; and welding the edges of the first cover plate and the second cover plate and the first reinforcing ribs and the second reinforcing ribs, injecting working medium into the cavity through the reserved injection port, and sealing the injection port after vacuumizing to obtain the ultrathin soaking plate. The invention can ensure the three-dimensional structure of the soaking plate, enhance the mechanical property of the soaking plate and prevent the soaking plate from deforming; in addition, the reinforcing ribs on the two sides are designed to play a role in strengthening and bonding the upper cover plate and the lower cover plate, so that the bulging phenomenon is avoided, and the product quality and the yield are improved.
Description
Technical Field
The invention relates to a heat dissipation product, in particular to an ultrathin soaking plate with a reinforcing rib structure and a manufacturing method thereof.
Background
In 2019, the Chinese industry and informatization department first issued 5G commercial photographing, and many equipment and communication manufacturers followed up quickly, and as an application aspect of the 5G technology, large mobile phone manufacturers such as Huashi and millet rapidly issued 5G smart phones. The application of 5G technology means a better use experience and also means higher power consumption. The power consumption inevitably brings the heat dissipation problem of related products in a narrow space. The ultrathin heat pipe and the soaking plate are used as development and application hotspots of heat dissipation products and applied to more kinds of mobile phones. Currently, the thickness of the heat spreader has been reduced to below 0.5mm, and thinner thickness is being pursued to reduce the space occupied by the cellular phone. However, the thinner soaking plate has the problems of poor mechanical property, easy deformation, easy bulging in an aging test and the like. At present, no mature technology for solving the problem exists in the industry.
The Chinese invention patent CN 102778157B discloses a method for manufacturing a flat vapor chamber, wherein the upper cover plate and the lower bottom plate of the vapor chamber manufactured by the method are integrally processed to form a packaging cavity, and a plurality of reinforcing ribs are arranged on the upper surface in the cavity to play a supporting role so as to improve the structural strength of the vapor chamber. Chinese utility model patent CN 206556484U discloses an ultra-thin soaking plate, through etching or radium carving processing support cylinder on the apron, support cylinder pushes down capillary structure to support cylinder connects apron and bottom plate in order to realize the supporting role. These soaking plates are all at unilateral design strengthening rib, have certain effect to the structural strength who improves the soaking plate, but to the structure that the unilateral set up the strengthening rib, need adopt the mode that the diffusion welded during the welding, the diffusion welds equipment expensive, and the volume production performance is poor, causes enterprise's production early stage input cost too much.
Disclosure of Invention
The invention provides an ultrathin soaking plate and a manufacturing method thereof, which can solve one or more of the problems in the prior art.
According to one aspect of the invention, the ultrathin soaking plate comprises a first cover plate and a second cover plate which are connected in an edge sealing mode, wherein a first groove is formed in the inner surface of the first cover plate, a plurality of first reinforcing ribs are arranged in the first groove, a second groove is formed in the inner surface of the second cover plate, a plurality of second reinforcing ribs are arranged in the second groove, and the first groove and the second groove are connected with each other to form a cavity; the first reinforcing rib and the second reinforcing rib are symmetrically arranged and connected with each other; the inside of cavity is equipped with imbibition core and working medium to the cavity is inside in vacuum state.
From this, first strengthening rib and second strengthening rib can the one-to-one, and in the inside cavity of soaking plate, first apron passes through strengthening rib interconnect with the second apron, plays the supporting role to the spatial structure of cavity, can strengthen the structural strength of soaking plate, and mechanical properties increases to can prevent to warp. The upper side and the lower side of the soaking plate are strengthened by the reinforcing rib structure, so that the space between the inner unsupported spaces of the soaking plate is reduced, the strengthening effect is realized, the three-dimensional structure of the soaking plate can be ensured, and the inner obvious depression is avoided; in the aging test, the design of the reinforcing ribs on the two sides plays a role in strengthening the bonding of the upper cover plate and the lower cover plate, so that the bulge phenomenon is avoided, and the product quality and the yield are improved. In addition, due to the design of the double reinforcing ribs, the reinforcing ribs are welded to avoid key structures such as liquid absorption cores, and the like, so that the influence on an internal structure in the welding process is avoided.
In some embodiments, the first bead is of equal height to the edge of the first groove; the second strengthening rib is equal to the edge height of second recess. Therefore, the contact surfaces of the edges of the first cover plate and the second cover plate and the contact surfaces of the upper reinforcing rib and the lower reinforcing rib in the cavity are located on the same plane, so that the edges of the upper cover plate and the lower cover plate and the inner reinforcing rib structure can be welded simultaneously in a brazing or laser welding mode, the soaking plate is sealed, the processing difficulty is reduced, and large-scale industrial production is facilitated.
In some embodiments, the first stiffener is integrally formed with the first cover plate; the second reinforcing rib and the second cover plate are integrally formed. From this, the junction of first strengthening rib and first apron and the junction of second strengthening rib and second apron do not have the gap, can avoid the strengthening rib to break away from or install bad phenomenon such as jail for structural strength reaches the maximize.
In some embodiments, the first reinforcing ribs are evenly distributed with the second reinforcing ribs. The first reinforcing rib and the second reinforcing rib which are connected with each other are uniformly distributed in the cavity of the soaking plate, and gaps are arranged among the plurality of reinforcing ribs. Therefore, the cavity space inside the soaking plate is uniformly divided by the reinforcing ribs, and the stress at each position of the upper cover plate and the lower cover plate is uniform when the soaking plate bears the external pressure, so that the deformation of the soaking plate can be avoided. When the heat exchanger works, the working medium is heated and vaporized and then can be diffused in the gaps among the reinforcing ribs, so that heat is rapidly transferred to the cavity space.
In some embodiments, the stiffener is integrally formed with the first cover plate or the second cover plate. In some embodiments, the shape of the ribs includes, but is not limited to, cylindrical and prismatic. Therefore, different processing requirements can be met to adapt to different application scenes.
In some embodiments, the wick is attached to the inner wall of the first cover plate and/or the second cover plate. The liquid suction cores can be attached to one side or two sides of the first cover plate or the second cover plate in the cavity in a sintering mode, and the common liquid suction cores are of capillary structures and made of metal or nonmetal materials, so that the liquid working medium can be drained, and the heat dissipation effect of the working medium is improved.
In some embodiments, the edges of the first cover plate and the second cover plate can be mutually clamped, and the edges of the first cover plate and the second cover plate are connected into a whole by welding. On the first apron or the second apron around the cavity, through technological methods such as punching press processing locating piece, the locating piece can with the marginal mutual block of another apron to the second apron is connected as an organic whole through welded mode and first apron. From this, can carry out accurate location through connecting the limit to make first apron accurate with the second cover connection, improve the product yield.
The manufacturing method of the ultrathin soaking plate provided by the invention comprises the following steps:
(1) processing a first groove on one side surface of the first cover plate, wherein a plurality of first reinforcing ribs are arranged in the first groove; processing a second groove on the second cover plate, wherein a plurality of second reinforcing ribs are arranged in the second groove; the plurality of first reinforcing ribs and the plurality of second reinforcing ribs are symmetrically distributed;
(2) attaching a wick to an inner surface of the first cover plate and/or the second cover plate;
(3) buckling the first cover plate and the second cover plate together to form a cavity, so that the first cover plate is in contact with the inner surface of the second cover plate, and the first reinforcing ribs and the second reinforcing ribs are in corresponding contact one by one;
(4) welding the contact edge of the first cover plate and the second cover plate and the first reinforcing rib and the second reinforcing rib which are mutually contacted simultaneously, and arranging a filling port during welding, wherein the filling port is used for communicating the interior of the cavity with the outside;
(5) filling working media into the cavity through the injection port;
(6) extracting air in the cavity through the injection port to enable the interior of the cavity to be in a vacuum state;
(7) and plugging the injection port and sealing to obtain the ultrathin soaking plate.
From this, all set up the strengthening rib structure at the internal surface of the first apron of soaking board and second apron, the reinforcing is to the supporting role in inner space to effectively prevent that the soaking board warp. The ultrathin soaking plate adopts a structure with reinforcing ribs on two sides, and the first cover plate and the second cover plate can be connected in the processing process by adopting modes such as laser welding, brazing and the like, so that the mode of diffusion welding can be avoided, and the equipment cost is reduced. The soaking plate processed by the method has simple process and low cost, and is suitable for large-scale production.
In some embodiments, the first grooves, the first ribs, the second grooves and the second ribs are formed by etching, laser etching or stamping. The first reinforcing rib and the second reinforcing rib processed by the method have stable structures and are not easy to fall off, and the service life of the soaking plate is prolonged.
Drawings
Fig. 1 is a disassembled schematic view of an ultra-thin soaking plate according to an embodiment of the present invention;
FIG. 2 is a top view of a first cover plate of the ultra-thin soaking plate of FIG. 1;
FIG. 3 is a cross-sectional view of the ultra-thin vapor chamber of FIG. 1 taken along line AA of FIG. 2 after assembly;
FIG. 4 is a disassembled view of an ultra-thin vapor chamber according to another embodiment of the present invention;
FIG. 5 is a top view of the first cover plate of the ultra-thin soaking plate of FIG. 4;
fig. 6 is a schematic cross-sectional view of the ultra-thin soaking plate shown in fig. 4, taken along the line BB shown in fig. 5 after assembly.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Fig. 1 to 3 schematically show an ultra-thin soaking plate according to an embodiment of the present invention. As shown in the figure, the device includes a first cover plate 10 and a second cover plate 20, and the first cover plate 10 and the second cover plate 20 are made of a metal material with good thermal conductivity, and generally made of a material with good machining performance, such as a copper material, an aluminum material, or a titanium alloy. The inner surface of the first cover plate 10 is provided with a first groove 11, the inner surface of the second cover plate 20 is provided with a second groove 21, and the edges of the first cover plate 10 and the second cover plate 20 are hermetically connected, so that the first groove 11 and the second groove 21 are connected with each other to form a cavity.
The first groove 11 is internally provided with a first reinforcing rib 12, and the second groove 21 is internally provided with a second reinforcing rib 22. The first reinforcing ribs 12 and the second reinforcing ribs 22 are uniformly distributed, correspond to each other and are connected with each other to jointly support the cavity structure in the soaking plate. As shown in fig. 1 and 2, the first reinforcing rib 12 and the second reinforcing rib 22 are both rectangular column structures. As shown in fig. 3, the edge of the first groove 11 forms a connecting edge 40, and the first rib 12 is as high as the connecting edge 40 of the first groove 11; likewise, the edge of the second groove 21 forms a connecting edge 40, and the second rib 22 is flush with the connecting edge 40 of the second groove 21. When the first cover plate 10 and the second cover plate 20 are attached to each other, the first reinforcing ribs 12 and the second reinforcing ribs 22 which are symmetrically distributed are connected in a one-to-one correspondence manner, and the contact surfaces of the first cover plate 10 and the second cover plate 20 and the contact surfaces of the first reinforcing ribs 12 and the second reinforcing ribs 22 are all on the same plane.
The first reinforcing ribs 12 and the second reinforcing ribs 22 inside the cavity are uniformly distributed. The inner surface of the first cover plate 10 is attached with a wick 30, and the wick 30 can be a capillary structure made of metal or nonmetal materials, so that the flow of the liquid working medium in the cavity can be accelerated, and the heat dissipation efficiency is improved. Working medium is filled in the cavity and the vacuum state is kept.
After one end of the ultrathin soaking plate is heated, the heat is conducted to the inside of the cavity. Under the vacuum state, the working medium absorbs heat and is easy to gasify, so that the heat can be diffused in the inner space of the cavity, and the absorbed heat is diffused to the outside through the pipe wall of the soaking plate, thereby achieving the heat dissipation effect. The working medium after heat release is liquefied again and rapidly returns to the heated end under the capillary action of the liquid absorption core 30. The circulation achieves the function of continuous heat dissipation.
The manufacturing method of the ultrathin soaking plate comprises the following steps:
(1) a first groove 11 and a plurality of first reinforcing ribs 12 are processed on one side of the first cover plate 10 in an etching, laser etching or stamping mode, and a second groove 21 and a plurality of second reinforcing ribs 22 are processed on one side of the second cover plate 20, so that the first reinforcing ribs 12 and the second reinforcing ribs 22 are uniformly distributed and correspond to each other one by one. The first reinforcing rib 12 and the second reinforcing rib 22 are rectangular cylinders with the same cross section, so that the first reinforcing rib 12 and the second reinforcing rib 22 can be accurately connected. In the processing process, the first reinforcing rib 12 and the edge of the first groove 11 are kept to be equal in height, and the second reinforcing rib 22 and the edge of the second groove 21 are kept to be equal in height, so that when the first cover plate 10 is connected with the second cover plate 20, the connecting surfaces inside and outside the cavity are located on the same horizontal plane.
A filling opening 50 is prepared at the edge of the first cover plate 10 during the manufacturing process, and as shown in fig. 1 and 2, the filling opening 50 is positioned at a lower height than the connecting edge 40 of the first recess 11. The injection port 50 may communicate the inside of the first recess 11 with the outside.
The etching, laser engraving or stamping process method is simple in technology and accurate in processing, and can ensure the quality of products.
(2) Wick 30 is sintered to the inner surface of first cover plate 10. The thickness of the wick 30 is maintained uniform during sintering. The wick 30 is attached to the inner surface of the first groove 11 by sintering, so that the stability of the structure is ensured, and the wick 30 can be effectively prevented from falling off accidentally.
(3) The first cover plate 10 and the second cover plate 20 are buckled together, and the connecting edge 40 of the first groove 11 is contacted with the connecting edge 40 of the second groove 21 to form a cavity. Inside the cavity, the contact is corresponded one by one with a plurality of second strengthening rib 22 to a plurality of first strengthening rib 12 that the symmetry set up, connects the upper surface of cavity in the lower surface, reinforcing to spatial structure's supporting role.
The first reinforcing ribs 12 and the second reinforcing ribs 22 are uniformly distributed to divide the inner space of the cavity, so that the space between unsupported spaces in the cavity is reduced, the mechanical property is enhanced, and the deformation resistance is improved.
(4) The contact edges of the first cover plate 10 and the second cover plate 20 and the first reinforcing ribs 12 and the second reinforcing ribs 22 which are in contact with each other are welded simultaneously, and during welding, the injection port 50 is reserved, so that a cavity which is internally provided with a double-side reinforcing rib mechanism and can be communicated with the outside is formed. During welding, modes such as brazing or laser welding can be adopted, the operation is simple, the welding surface is smooth, the diffusion welding mode can be avoided, and the equipment cost is reduced.
(5) And a proper amount of working medium is filled into the cavity through the injection port 50. The working medium is pure water or ultrapure water, and can also be alcohol, methylbenzene and other common working media. Under the vacuum state, the working media are easy to be gasified when being heated, and the heat dissipation efficiency can be improved.
(6) The interior of the cavity is vacuumized by externally connecting a negative pressure device with the injection port 50.
(7) And after the vacuum degree in the cavity meets the requirement, plugging the injection port 50 and sealing the injection port, thereby forming the ultrathin soaking plate.
Example 2
Fig. 4 to 6 schematically show an ultra-thin soaking plate according to another embodiment of the present invention. The present embodiment is different from embodiment 1 in that:
as shown in fig. 4 and 5, the plurality of first reinforcing beads 12 and the plurality of second reinforcing beads 22 processed by etching, laser engraving, or punching have a cylindrical shape.
As shown in fig. 6, the wicks 30 are sintered on the inner surfaces of the first cover plate 10 and the second cover plate 20, so that the fluidity of the liquid working medium can be further accelerated, and the heat dissipation efficiency can be enhanced.
The edges of the first cover plate 10 and the second cover plate 20 are connected in a snap-fit manner. The positioning block 41 is processed on the edge of the first cover plate 10 by processes such as stamping, and the positioning block 41 can be mutually clamped with the edge of the second cover plate 20, so that the first cover plate 10 and the second cover plate 20 are positioned more accurately. After the connecting edge 40 at the edge of the first cover plate 10 is fastened with the positioning block 41, the first cover plate 10 and the second cover plate 20 are welded and sealed in a brazing or laser welding mode to form a cavity.
As shown in fig. 4, 5 and 6, the first cover plate 10 is provided at its edge with a small external pipe through a material inlet 50, one end of the small external pipe is connected to the inside of the cavity, and the other end is connected to the outside.
In addition, the positioning block 41 and the external small pipe may also be located at corresponding positions on the second cover plate 20.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (8)
1. An ultra-thin soaking plate comprises a first cover plate (10) and a second cover plate (20) which are connected with the edges in a sealing way,
a first groove (11) is formed in the inner surface of the first cover plate (10), a plurality of first reinforcing ribs (12) are arranged in the first groove (11), a second groove (21) is formed in the inner surface of the second cover plate (20), a plurality of second reinforcing ribs (22) are arranged in the second groove (21), and the first groove (11) and the second groove (21) are connected with each other to form a cavity; the first reinforcing ribs (12) and the second reinforcing ribs (22) are symmetrically arranged and are connected with each other; the liquid absorption core (30) and the working medium are arranged inside the cavity, and the inside of the cavity is in a vacuum state.
2. The ultra-thin soaking plate according to claim 1, wherein the first reinforcing ribs (12) and the first grooves (11) have the same edge height; the second reinforcing ribs (22) and the second grooves (21) are equal in edge height.
3. The ultra-thin soaking plate according to claim 2, wherein the first reinforcing ribs (12) are integrally formed with the first cover plate (10); the second reinforcing ribs (22) and the second cover plate (20) are integrally formed.
4. The ultra-thin soaking plate according to claim 2, wherein the first reinforcing ribs (12) and the second reinforcing ribs (22) are uniformly distributed.
5. Ultra-thin vapor chamber according to claim 1, characterized in that the wick (30) is attached to the inner wall of the first cover plate (10) and/or the second cover plate (20).
6. The ultra-thin soaking plate according to claim 1, characterized in that the edges of the first cover plate (10) and the second cover plate (20) can be mutually clamped, and the first cover plate (10) and the second cover plate (20) are connected into a whole by welding.
7. A method for manufacturing an ultra-thin vapor chamber according to claim 1, comprising the steps of:
(1) processing a first groove (11) on one side surface of the first cover plate (10), wherein a plurality of first reinforcing ribs (12) are arranged in the first groove (11); a second groove (21) is processed on the second cover plate (20), and a plurality of second reinforcing ribs (22) are arranged in the second groove (21); the plurality of first reinforcing ribs (12) and the plurality of second reinforcing ribs (22) are symmetrically distributed;
(2) attaching a wick (30) to the inner surface of the first cover plate (10) and/or the second cover plate (20);
(3) buckling a first cover plate (10) and a second cover plate (20) together to form a cavity, so that the first cover plate (10) is in contact with the inner surface of the second cover plate (20), and the first reinforcing ribs (12) are in corresponding contact with the second reinforcing ribs (22) one by one;
(4) welding the contact edge of the first cover plate (10) and the second cover plate (20) and the first reinforcing rib (12) and the second reinforcing rib (22) which are in contact with each other simultaneously, and arranging a feeding port (50) during welding, wherein the feeding port (50) is used for communicating the interior of the cavity with the outside;
(5) working media are filled into the cavity through the injection port (50);
(6) air in the cavity is extracted through the injection port (50), so that the interior of the cavity is in a vacuum state;
(7) and plugging the injection port (50) and sealing to obtain the ultrathin soaking plate.
8. The manufacturing method of the ultrathin soaking plate according to claim 7, characterized in that the first grooves (11), the first reinforcing ribs (12), the second grooves (21) and the second reinforcing ribs (22) in the step (1) are formed by adopting the etching, laser carving or stamping process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911053558.5A CN110966880A (en) | 2019-10-31 | 2019-10-31 | Ultrathin soaking plate and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911053558.5A CN110966880A (en) | 2019-10-31 | 2019-10-31 | Ultrathin soaking plate and manufacturing method thereof |
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| CN110966880A true CN110966880A (en) | 2020-04-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022147861A1 (en) * | 2021-01-11 | 2022-07-14 | 东莞领杰金属精密制造科技有限公司 | Manufacturing method for vapor chamber, vapor chamber and middle frame vapor chamber |
| CN115003117A (en) * | 2022-06-08 | 2022-09-02 | Oppo广东移动通信有限公司 | Heat dissipation assembly, preparation method thereof and electronic equipment |
| WO2024113670A1 (en) * | 2022-11-30 | 2024-06-06 | 广东畅能达科技发展有限公司 | Anti-bulging vapor chamber, and preparation method therefor and application thereof |
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| WO2024113670A1 (en) * | 2022-11-30 | 2024-06-06 | 广东畅能达科技发展有限公司 | Anti-bulging vapor chamber, and preparation method therefor and application thereof |
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Application publication date: 20200407 |