CN210426215U - Composite temperature-equalizing plate - Google Patents
Composite temperature-equalizing plate Download PDFInfo
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- CN210426215U CN210426215U CN201921191169.4U CN201921191169U CN210426215U CN 210426215 U CN210426215 U CN 210426215U CN 201921191169 U CN201921191169 U CN 201921191169U CN 210426215 U CN210426215 U CN 210426215U
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Abstract
The utility model provides a composite temperature-uniforming plate, which not only has the characteristics of high processing efficiency, low cost, no pollution and thin thickness, but also does not need to add extra sleeves, is simple to operate and has better capillary conduction capability; the powder sintering device comprises a first cover plate, a second cover plate and a containing cavity, wherein a supporting structure and a powder sintering capillary structure are arranged in the containing cavity, a groove is formed in a covering plate surface of the first cover plate to form the containing cavity, the supporting structure is a convex hull integrally formed with the first cover plate through sheet metal stamping, the height of the convex hull is smaller than the depth of the groove, the powder sintering capillary structure is tightly attached to the covering plate surface of the second cover plate, the mesh capillary structure is arranged between the convex hull and the powder sintering capillary structure, extension parts extending outwards from side edges are arranged on the first cover plate and the second cover plate respectively, a liquid injection channel communicated with the containing cavity is formed in the extension part of the first cover plate, and an air-extracting and liquid injection port is formed in the extension part of the second cover plate and is communicated; the thickness of the temperature equalizing plate is 0.3 mm-50 mm.
Description
Technical Field
The utility model relates to a heat dissipation technical field specifically is a compound temperature-uniforming plate.
Background
Along with the improvement of the living standard of people, the functions and the appearances of computers, tablet computers and mobile phones are continuously upgraded, and the requirements of power consumption and light and thin experience are also continuously improved, wherein the heat conducting element plays a role, the existing heat conducting element usually adopts a heat pipe or a temperature equalizing plate, the heat conducting element and the temperature equalizing plate are used for executing the work of quick heat conduction by utilizing working liquid arranged inside and changing two-phase flow, the temperature equalizing plate has good 2D surface heat conducting capacity and the characteristic of light weight, and the temperature equalizing plate can gradually replace the heat pipe for heat dissipation.
However, the prior temperature-equalizing plate still has some defects in production and use:
(1) the cover plate in the temperature equalizing plate structure generally adopts a CNC or etching processing support structure, but the processing efficiency is low, the cost is high and the pollution is large;
(2) the cover plate adopts a CNC or etching support structure, so that the cover plate cannot be really light and thin under the condition of ensuring the machinability and the strength;
(3) the air-extracting and liquid-injecting port on the cover plate in the temperature-uniforming plate structure needs to be additionally provided with an additional sleeve for external connection operation, and then complex (pressing and welding) sealing operation is needed after air-extracting and liquid-injecting is completed, so that the operation is complicated;
(4) the powder sintering structure inside the temperature-equalizing plate can be broken under the condition of external bending, and the capillary conduction capability can be greatly influenced.
Disclosure of Invention
To the above problem, the utility model provides a compound temperature-uniforming plate, it not only has machining efficiency height, with low costs, pollution-free, the thin characteristics of thickness, and need not to increase extra sleeve pipe, easy operation to better capillary conduction ability has.
Its technical scheme is such, a compound temperature-uniforming plate, it includes first apron, second apron and holds the chamber, first apron, second apron lid are closed and are connected, hold the intracavity be equipped with bearing structure, powder sintering capillary structure and with hold the liquid mouth is annotated in bleeding that the chamber is linked together, its characterized in that: the powder sintering device is characterized by further comprising a mesh capillary structure, a groove is formed in the covering plate surface of the first cover plate to form the containing cavity, the supporting structure is a convex hull integrally formed with the first cover plate through sheet metal stamping, the convex hull is arranged on the bottom surface of the groove, the height of the convex hull is smaller than the depth of the groove, the powder sintering capillary structure is tightly attached to the covering plate surface of the second cover plate, the mesh capillary structure is arranged between the convex hull and the powder sintering capillary structure, extending parts extending outwards from the side edges are arranged on the first cover plate and the second cover plate, a liquid injection channel communicated with the containing cavity is formed in the extending part of the first cover plate, and the air-extracting liquid injection port is formed in the extending part of the second cover plate and communicated with the liquid injection channel; the thickness of the temperature equalizing plate is 0.3 mm-50 mm.
It is further characterized in that:
the convex hulls are arranged on the bottom surface of the groove in a 5 x 5 matrix manner;
the edge parts of the groove and the liquid injection channel are higher than the covering plate surface of the first cover plate, and the second cover plate is welded with the edge part of the first cover plate corresponding to the second cover plate;
working media are injected into the containing cavity through the air suction and liquid injection port, and the working media are gaseous/liquid phase change media.
The utility model has the advantages that the convex hull is integrally formed on the first cover plate by sheet metal stamping to form the supporting structure, and the supporting structure has the characteristics of good strength, high processing efficiency, low cost and no pollution; the liquid injection channel communicated with the containing cavity is formed in the extending part of the first cover plate, so that no extra sleeve is needed during air exhaust and liquid injection, sealing can be completed only by one-time pressure welding after injection is completed, and then the extending parts extending from the first cover plate and the second cover plate are cut off, so that the operation is convenient, structural parts are prevented from being interfered, and the liquid injection device is attractive and practical; and a mesh capillary structure is added in the convex hull and the powder sintering capillary structure, so that the capillary conduction capacity can be increased, and the stable work is ensured; in addition, the thickness of the temperature equalizing plate is 0.3-50 mm, so that the light and thin characteristics of the temperature equalizing plate are greatly improved, and the temperature equalizing plate has better economic use value.
Drawings
FIG. 1 is a schematic view of the exploded structure of the present invention before sealing;
FIG. 2 is a schematic structural diagram of a first cover plate;
fig. 3 is a schematic view of the disassembled structure after sealing.
Detailed Description
As shown in fig. 1-3, the utility model relates to a composite temperature-uniforming plate, which comprises a first cover plate 1, a second cover plate 2 and a cavity 3, wherein the first cover plate 1 and the second cover plate 2 are covered and connected, a supporting structure is arranged in the cavity 3, a powder sintering capillary structure 4 and a pumping and injecting port 6 communicated with the cavity 3 are arranged, the composite temperature-uniforming plate further comprises a mesh capillary structure 5, a groove 7 is arranged on the covering and closing surface of the first cover plate 1 to form the cavity 3, the supporting structure is a convex hull 8 integrally formed with the first cover plate 1 by sheet metal stamping, the convex hull 8 is arranged in a 5 x 5 matrix form on the bottom surface of the groove 7, the height of the convex hull 8 is less than the depth of the groove 7, the powder sintering capillary structure 4 is tightly attached to the covering and closing surface of the second cover plate 2, the mesh capillary structure 5 is arranged between the convex hull 8 and the powder sintering capillary structure 4, an extending part 91 and a side edge are correspondingly arranged on the first cover plate 1 and, The extension part 91 of the first cover plate 1 is provided with a liquid injection channel 10 communicated with the cavity 3, and the air-extracting and liquid-injecting port 6 is arranged on the extension part 92 of the second cover plate 2 and communicated with the liquid injection channel 10; the thickness of the temperature equalizing plate is 0.3 mm.
The edge parts of the groove 7 and the liquid injection channel 10 are higher than the covering plate surface of the first cover plate 1, and the second cover plate 2 is welded and connected with the edge parts of the first cover plate 1 on the periphery of the edge parts of the groove 7 and the liquid injection channel 10 corresponding to the second cover plate; working media are injected into the cavity 3 through the air-extracting and liquid-injecting port 6, and the working media are gaseous/liquid phase-change media.
A manufacturing method of a composite temperature-uniforming plate comprises the following steps:
s1, closing the first cover plate 1 and the second cover plate 2, and forming a cavity 3 in the first cover plate 1, wherein a groove 7 is formed in the closing plate surface of the first cover plate 1 to form the cavity 3, and in an actual situation, the cavity 3 can be selectively arranged on any one of the first cover plate 1 and the second cover plate 2; a convex hull 8 integrally formed with the first cover plate 1 through sheet metal stamping is arranged on the bottom surface of the groove 7;
s2, the powder sintering capillary structure 4 is tightly attached to the covering plate surface of the second cover plate 2, and a mesh capillary structure 5 is arranged in the cavity 3 between the convex hull 8 and the powder sintering capillary structure 4; the sizes of the powder sintering capillary structure 4 and the mesh capillary structure 5 are smaller than the sizes of the first cover plate 1 and the second cover plate 2, and the sizes of the powder sintering capillary structure 4 and the mesh capillary structure 5 are consistent with the size of the groove 7;
s3, the first cover plate 1 and the second cover plate 2 are respectively provided with an extension part 91 and an extension part 92 which correspondingly extend outwards from the side edges, the extension parts 91 and the extension parts 92 are overlapped, the extension part 91 of the first cover plate 1 is provided with a liquid injection channel 10 communicated with the cavity 3, so that the first cover plate 1 and the second cover plate 2 are oppositely covered to jointly form a liquid injection channel, and the air suction liquid injection port 6 is arranged on the extension part 92 of the second cover plate 2 and communicated with the liquid injection channel 10;
s4, welding and sealing the outer edge parts of the first cover plate 1 and the second cover plate 2 and the outer edge parts of the extension parts 91 and 92 on the first cover plate 1 and the second cover plate 2;
s5, injecting working media into the cavity 3 through the air-extracting liquid-injecting port 6 and the liquid-injecting channel 10, and then pressure welding the extending part 91 and the extending part 92 in a pressure welding manner to seal the liquid-injecting channel;
s6, after sealing, the extension portions 91 and 92 extending from the first cover plate 1 and the second cover plate 2 are cut off.
In the utility model, the cavity 3 is pumped and injected with working medium through the pumping and injecting port 6 and the injecting channel 10, gas and working medium enter the cavity 3 (in the groove 7 of the first cover plate 1) inside the temperature equalizing plate from the injecting channel, the channel is sealed by pressure welding after the pumping and injecting of the working medium are completed, and then the extending part 91 and the extending part 92 extending from the first cover plate 1 and the second cover plate 2 are cut off; any position on the first cover plate 1 is contacted with a heat source, the temperature is raised, the liquid working medium is quickly evaporated into a hot working medium in a vacuum ultralow-pressure environment and absorbs heat energy at the same time, the hot working medium is transferred to a position with lower temperature at the far end in a cavity 3 space between the matrix type convex hull 8 on the first cover plate 1 and the second cover plate 2 and is liquefied into the liquid working medium and releases heat energy, and the liquid working medium flows back to the position of the heat source through a fine structure formed by the powder sintering capillary structure 4 and the mesh capillary structure 5 according to the existing capillary principle, so that the heat conduction and dissipation work is carried out repeatedly.
In addition, the first cover plate 1 and the supporting structure thereon are integrally formed by sheet metal stamping, and have the characteristics of good strength, high speed and efficiency, low cost, thin thickness (the minimum thickness can be 0.05mm), no pollution and the like; the air-extracting liquid-injecting port 6 is not required to be additionally provided with a sleeve, the liquid-injecting channel 10 is formed on the first cover plate 1 through sheet metal forming, the second cover plate 2 is provided with a liquid-injecting port through sheet metal forming, the two cover plates are oppositely combined to form a liquid-injecting channel after being covered, then the liquid-injecting channel is sealed by only one-time pressure welding, the automatic production is convenient, and the convex part of the liquid-injecting channel is cut after the sealing, so that the temperature-equalizing plate is integrally free of the convex part, the structure is prevented from being interfered, and the appearance is attractive and practical; besides the powder sintering capillary structure 4, the mesh capillary structure 5 is additionally arranged in the internal structure of the temperature-uniforming plate, and the mesh has certain capillary conduction capability, so that the integral structure is enhanced on the premise of not influencing an injection channel, and stable conduction work can be ensured under the condition that the powder sintering capillary structure 4 fails.
The utility model discloses well temperature-uniforming plate can accomplish 0.3mm ~ 50mm with thickness, has greatly promoted the frivolous characteristic of temperature-uniforming plate, and compatibility is also relatively good, and heat-conduction mode is the multi-direction conduction design in two-dimensional plane, and the limitation is little, efficient, and wherein, the temperature-uniforming plate wholly can use corrosion-resistant material to realize more high-efficient heat conductivity and reliability and life-span.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The utility model provides a compound temperature-uniforming plate, its includes first apron, second apron and holds the chamber, first apron, second apron lid close the connection, hold the intracavity be equipped with bearing structure, powder sintering capillary structure and with hold the liquid mouth is annotated in bleeding that the chamber is linked together, its characterized in that: the powder sintering device is characterized by further comprising a mesh capillary structure, a groove is formed in the covering plate surface of the first cover plate to form the containing cavity, the supporting structure is a convex hull integrally formed with the first cover plate through sheet metal stamping, the convex hull is arranged on the bottom surface of the groove, the height of the convex hull is smaller than the depth of the groove, the powder sintering capillary structure is tightly attached to the covering plate surface of the second cover plate, the mesh capillary structure is arranged between the convex hull and the powder sintering capillary structure, extending parts extending outwards from the side edges are arranged on the first cover plate and the second cover plate, a liquid injection channel communicated with the containing cavity is formed in the extending part of the first cover plate, and the air-extracting liquid injection port is formed in the extending part of the second cover plate and communicated with the liquid injection channel; the thickness of the temperature equalizing plate is 0.3 mm-50 mm.
2. A composite temperature equalization plate as claimed in claim 1, wherein: the convex hulls are arranged on the bottom surface of the groove in a 5 multiplied by 5 matrix form.
3. A composite temperature equalization plate as claimed in claim 1, wherein: the edge parts of the groove and the liquid injection channel are higher than the covering plate surface of the first cover plate, and the second cover plate and the edge part on the first cover plate corresponding to the second cover plate are connected in a welding mode.
4. A composite temperature equalization plate as claimed in claim 1, wherein: working media are injected into the containing cavity through the air suction and liquid injection port, and the working media are gaseous/liquid phase change media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191169.4U CN210426215U (en) | 2019-07-26 | 2019-07-26 | Composite temperature-equalizing plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191169.4U CN210426215U (en) | 2019-07-26 | 2019-07-26 | Composite temperature-equalizing plate |
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| CN210426215U true CN210426215U (en) | 2020-04-28 |
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| CN201921191169.4U Active CN210426215U (en) | 2019-07-26 | 2019-07-26 | Composite temperature-equalizing plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285699A (en) * | 2019-07-26 | 2019-09-27 | 联德精密材料（中国）股份有限公司 | A kind of compound temperature-uniforming plate and its manufacturing method |
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2019
- 2019-07-26 CN CN201921191169.4U patent/CN210426215U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285699A (en) * | 2019-07-26 | 2019-09-27 | 联德精密材料（中国）股份有限公司 | A kind of compound temperature-uniforming plate and its manufacturing method |
| WO2021017731A1 (en) * | 2019-07-26 | 2021-02-04 | 昆山联德电子科技有限公司 | Composite-type vapor chamber and manufacturing method therefor |
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