CN210298392U - Composite heat dissipation system - Google Patents
Composite heat dissipation system Download PDFInfo
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- CN210298392U CN210298392U CN201921169109.2U CN201921169109U CN210298392U CN 210298392 U CN210298392 U CN 210298392U CN 201921169109 U CN201921169109 U CN 201921169109U CN 210298392 U CN210298392 U CN 210298392U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 54
- 239000000956 alloy Substances 0.000 claims abstract description 54
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 45
- 230000008859 change Effects 0.000 claims abstract description 34
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 abstract description 26
- 238000004146 energy storage Methods 0.000 abstract description 16
- 238000001816 cooling Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012782 phase change material Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
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- 239000007787 solid Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
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- 239000002918 waste heat Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 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
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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Abstract
The utility model relates to a heat dissipation field provides a compound cooling system, and this compound cooling system includes: the phase change structure and the vacuum cavity vapor chamber are mutually abutted; the phase change structure includes: a rib plate, a liquid metal alloy and an outer cavity; the outer cavity is internally provided with a plurality of ribbed plates which are arranged at intervals, and the liquid metal alloy is loaded in a hollow structure formed by the outer cavity and the ribbed plates. The utility model provides a compound cooling system, the heat that gives the vacuum cavity soaking board with the direction transmission gives the other directions of vacuum cavity soaking board through liquid metal alloy transmission, utilizes to be solid-state liquid metal alloy in the exocoel and absorbs its heat liquefaction, has effectively strengthened the radiating efficiency of vacuum cavity soaking board, has reduced the used heat of vacuum cavity soaking board simultaneously to this heat dissipation and phase change material's the energy storage effect of having realized the vacuum cavity soaking board.
Description
Technical Field
The utility model relates to a heat dissipation field, in particular to compound cooling system.
Background
With the social industry and people's continuous rising search for high-power devices and small-sized integration. With this, heat dissipation problems of high power devices, such as heat dissipation of game machines, heat dissipation of lasers, etc., have been raised. How to timely process the heat in the equipment without damaging the equipment and products becomes a hot point of research.
At present, the heat of a heat source is radiated to the surrounding environment by the application of the vacuum cavity vapor chamber with a larger heat exchange coefficient, but the heat of the vacuum cavity vapor chamber can only be radiated to the surrounding with a smaller heat radiation coefficient. The vapor chamber heat dissipation generally adopts air natural convection, fan forced convection or liquid flow cooling. The air convection cooling heat dissipation efficiency is not high, the liquid flow cooling operation process is complicated, and the equipment is easily damaged. The heat emitted by the vapor chamber is finally absorbed by the environment as waste heat, so that the problems of energy waste, acceleration of greenhouse effect and the like exist.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the above technical defects and application requirements, the present application provides a composite heat dissipation system, and aims to provide a device capable of improving the heat dissipation efficiency of a vacuum chamber vapor chamber and reducing the waste heat of the vacuum chamber vapor chamber.
(II) technical scheme
In order to solve the above problem, the utility model provides a compound cooling system, include: the phase change structure and the vacuum cavity vapor chamber are mutually abutted; the phase change structure includes: a rib plate, a liquid metal alloy and an outer cavity; the outer cavity is internally provided with a plurality of ribbed plates which are arranged at intervals, and the liquid metal alloy is loaded in a hollow structure formed by the outer cavity and the ribbed plates.
Further, the vapor chamber of the vacuum chamber comprises: the device comprises a heat exchange medium, an upper shell, a capillary structure and a lower shell; the upper shell, the capillary structure and the lower shell are sequentially stacked; the heat exchange medium soaks the capillary structure, and the capillary structure and the heat exchange medium are both arranged in the hollow structure formed by the upper shell and the lower shell.
Further, the capillary structure includes: a first capillary structure and a second capillary structure; the first capillary structure and the second capillary structure are mutually attached and are sequentially stacked in the hollow structure formed by the upper shell and the lower shell.
Furthermore, a plurality of protruding units are arranged at one end, attached to the second capillary structure, of the first capillary structure, and a plurality of recessed units are arranged at one end, attached to the first capillary structure, of the second capillary structure.
Further, the heat exchange medium is the liquid metal alloy.
Further, the melting point temperature of the liquid metal alloy is 60-200 ℃, and the liquid metal alloy is one or more of Bi-based alloy, Sn-based alloy or Ga-based alloy.
Furthermore, heat exchange surfaces are arranged on the vacuum cavity vapor chamber, at least one heat exchange surface of the vacuum cavity vapor chamber is in contact with a heat source, and at least one heat exchange surface of the vacuum cavity vapor chamber is in contact with the outer cavity.
Furthermore, a heat conduction layer formed by heat conduction glue is arranged on the heat exchange surface of the vacuum cavity vapor chamber and the outer cavity in butt joint.
Further, the outer cavity is a metal outer cavity.
Furthermore, the number of the vacuum cavity vapor chamber plates is multiple, the vacuum cavity vapor chambers are sequentially abutted, and the phase change structure is abutted with the vacuum cavity vapor chambers.
(III) advantageous effects
The utility model provides a compound cooling system, the heat dissipation problem of improvement vacuum cavity soaking plate that can be better, the heat that transmits the direction for the vacuum cavity soaking plate passes through other directions that liquid metal alloy transmitted the vacuum cavity soaking plate, utilize and be solid-state liquid metal alloy in the exocoel and absorb its heat liquefaction, effectively strengthened the radiating efficiency of vacuum cavity soaking plate, reduced the used heat of vacuum cavity soaking plate simultaneously, reduce the influence to the environment, with this heat dissipation and phase change material's the energy storage effect of having realized the vacuum cavity soaking plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a half-sectional view of a composite heat dissipation system provided in an embodiment of the present invention;
fig. 2 is a top view of a phase change structure provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 5 is a schematic view of a first layout structure of a phase change structure and a vapor chamber in a vacuum chamber according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a second layout structure of the phase change structure and the vapor chamber provided by the embodiment of the present invention;
fig. 7 is a schematic view of a third layout structure of the phase change structure and the vapor chamber provided in the embodiment of the present invention;
fig. 8 is a schematic diagram of a fourth layout structure of the phase change structure and the vapor chamber provided by the embodiment of the present invention;
fig. 9 is a schematic view of a fifth layout structure of the phase change structure and the vapor chamber provided in the embodiment of the present invention;
fig. 10 is a plan view of a vapor chamber provided in an embodiment of the present invention;
FIG. 11 is a cross-sectional view taken along line C-C of FIG. 10;
fig. 12 is an exploded view of a vapor chamber according to an embodiment of the present invention;
fig. 13 is a schematic view of a first capillary structure provided by an embodiment of the present invention;
fig. 14 is a schematic view of a second capillary structure provided by an embodiment of the present invention;
fig. 15 is a front view of another vapor chamber according to an embodiment of the present invention;
FIG. 16 is a cross-sectional view taken along line D-D of FIG. 15;
FIG. 17 is a cross-sectional view taken along line E-E of FIG. 15;
wherein, 1, phase change structure; 2. vapor chamber; 11. a rib plate; 12. a liquid metal alloy; 13. an outer cavity; 21. an upper housing; 22. a lower housing; 23. a second capillary structure; 24. a first capillary structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a compound cooling system, as shown in figure 1, this compound cooling system includes: the phase change structure 1 and the vacuum chamber vapor chamber 2 are abutted against each other.
Wherein the vapor chamber 2 is similar to a heat pipe in principle, but differs in conduction. The heat pipe is one-dimensional linear heat conduction, and the heat in the vapor chamber 2 is conducted on a two-dimensional surface, so that the efficiency is higher.
As shown in fig. 2, 3 and 4, the phase change structure 1 includes: a rib 11, a liquid metal alloy 12 and an outer cavity 13. A plurality of ribbed plates 11 are arranged in the outer cavity 13 at intervals, and a hollow structure formed by the outer cavity 13 and the ribbed plates 11 is loaded with liquid metal alloy 12.
Wherein, the material of the outer cavity 13 can be a metal outer cavity with good heat conductivity, such as a copper outer cavity, an aluminum outer cavity, an iron outer cavity or a stainless steel outer cavity, etc., and only needs to ensure that the outer cavity does not generate chemical reactions such as corrosion, etc. with the liquid metal alloy 12 within the working temperature range. In order to strengthen convection, grooves can be additionally arranged on the rib plates 11.
When the composite heat dissipation system is used, when heat is transmitted to the vacuum cavity vapor chamber 2 from one direction, the heat is absorbed by the phase change structure 1 tightly attached to the vacuum cavity vapor chamber 2, and the heat is absorbed and liquefied by the liquid metal alloy 12 in the solid state in the outer cavity 13. When the ambient temperature is lower than the melting point of the liquid metal alloy 12, the liquid metal alloy 12 in the phase change structure 1 will solidify, releasing heat, and the liquid metal alloy 12 will change to a solid state again.
The embodiment of the utility model provides a compound cooling system, the heat dissipation problem of improvement vacuum cavity soaking plate that can be better, the heat that transmits the direction for the vacuum cavity soaking plate passes through other directions that liquid metal alloy transmitted the vacuum cavity soaking plate, utilizes and is the solid-state liquid metal alloy in the exocoel to absorb its heat liquefaction, has effectively strengthened the radiating efficiency of vacuum cavity soaking plate, has reduced the used heat of vacuum cavity soaking plate simultaneously to this heat dissipation and phase change material's the energy storage effect of having realized the vacuum cavity soaking plate.
Based on the above embodiment, in a preferred embodiment, the vapor chamber is provided with heat exchange surfaces, at least one heat exchange surface of the vapor chamber is in contact with a heat source, and at least one heat exchange surface of the vapor chamber is in contact with the outer chamber. The vapor chamber can be a cylinder structure, a sphere structure or a cone structure, and the like, and the rectangular structure is taken as an example in the embodiment.
Wherein, a heat conduction layer composed of heat conduction glue is arranged on the heat exchange surface of the vacuum cavity vapor chamber and the outer cavity. When one or more surfaces of the vapor chamber absorb heat from the heat source, phase change heat exchange occurs inside the vapor chamber, and the temperature of other heat exchange surfaces of the vapor chamber rises.
Specifically, as shown in fig. 5, the phase change structure 1 directly abuts against one heat exchange surface of the vacuum chamber vapor chamber 2 through the heat conduction layer, so that heat dissipation and energy storage of the vacuum chamber vapor chamber 2 are realized. The phase change structure 1 can be abutted against any heat exchange surface of the vapor chamber 2 of the vacuum chamber except the heat exchange surface contacted with the heat source. The vapor chamber 2 conducts heat through a heat exchange surface. The liquid metal alloy in the initial state is solid and absorbs the heat conducted from the vapor chamber 2 to be liquefied and converted into liquid metal alloy liquid, so that the heat dissipation and energy storage of the vapor chamber 2 are met.
Specifically, as shown in fig. 6, the phase change structure 1 directly abuts against two heat exchange surfaces of the vacuum chamber vapor chamber 2 through the heat conduction layer, so as to realize heat dissipation and energy storage of the vacuum chamber vapor chamber 2. The phase change structure 1 can be abutted with any two heat exchange surfaces of the vapor chamber 2 except the heat exchange surface contacted with the heat source. The vapor chamber 2 conducts heat through two heat exchange surfaces. The liquid metal alloy in the initial state is solid and absorbs the heat conducted from the vapor chamber 2 to be liquefied and converted into liquid metal alloy liquid, so that the heat dissipation and energy storage of the vapor chamber 2 are met.
Specifically, as shown in fig. 7, the phase change structure 1 directly abuts against three heat exchange surfaces of the vacuum chamber vapor chamber 2 through the heat conduction layer, so that heat dissipation and energy storage of the vacuum chamber vapor chamber 2 are realized. The phase change structure 1 can be abutted with any three heat exchange surfaces of the vapor chamber 2 except the heat exchange surface contacted with the heat source. The vapor chamber 2 conducts heat through three heat exchange surfaces. The liquid metal alloy in the initial state is solid and absorbs the heat conducted from the vapor chamber 2 to be liquefied and converted into liquid metal alloy liquid, so that the heat dissipation and energy storage of the vapor chamber 2 are met.
Specifically, as shown in fig. 8, the phase change structure 1 directly abuts against the heat conduction layer and the four heat exchange surfaces of the vacuum chamber vapor chamber 2, so that heat dissipation and energy storage of the vacuum chamber vapor chamber 2 are realized. The phase change structure 1 can be abutted with any four heat exchange surfaces except the heat exchange surface contacted with the heat source of the vapor chamber 2 in the vacuum chamber. The vapor chamber 2 conducts heat through four heat exchange surfaces. The liquid metal alloy in the initial state is solid and absorbs the heat conducted from the vapor chamber 2 to be liquefied and converted into liquid metal alloy liquid, so that the heat dissipation and energy storage of the vapor chamber 2 are met.
Specifically, as shown in fig. 9, the phase change structure 1 directly abuts against five heat exchange surfaces of the vacuum chamber vapor chamber 2 through the heat conduction layer, so that heat dissipation and energy storage of the vacuum chamber vapor chamber 2 are realized. The phase change structure 1 can be abutted against any five heat exchange surfaces of the vapor chamber 2 except the heat exchange surface contacted with the heat source. The vapor chamber 2 conducts heat through five heat exchange surfaces. The liquid metal alloy in the initial state is solid and absorbs the heat conducted from the vapor chamber 2 to be liquefied and converted into liquid metal alloy liquid, so that the heat dissipation and energy storage of the vapor chamber 2 are met.
It should be noted that the number of the vapor chamber 2 may also be multiple, each vapor chamber 2 is abutted in sequence, and the phase change structure 1 is abutted with multiple vapor chamber vapor chambers 2, so as to realize the heat dissipation and energy storage of the single phase change structure 1 to the multiple vapor chamber vapor chambers 2.
The embodiment of the utility model provides a compound cooling system wraps up one deck phase change structure around the vacuum cavity soaking plate, and the heat dissipation problem of improvement vacuum cavity soaking plate that can be better can also be retrieved the heat of vacuum cavity soaking plate, realizes the effect of energy-conserving energy storage, reduces the harm to the environment, and the suitability is high, and the radiating efficiency is high, simple structure, environmental protection.
Based on the above-described embodiments, in a preferred embodiment, as shown in fig. 10, 11, 12, 13 and 14, the vapor chamber 2 of the vacuum chamber includes: heat exchange medium, upper housing 21, capillary structure and lower housing 22. The upper housing 21, the capillary structure, and the lower housing 22 are sequentially stacked. The capillary structure is soaked by the heat exchange medium, and the capillary structure and the heat exchange medium are both arranged in the hollow structure formed by the upper shell 21 and the lower shell 22.
Wherein, capillary structure includes: a first capillary structure 24 and a second capillary structure 23. The first capillary structure 24 and the second capillary structure 23 are attached to each other and sequentially stacked in the hollow structure formed by the upper housing 21 and the lower housing 22.
In this embodiment, a plurality of protruding units are disposed at one end of the first capillary structure 24 attached to the second capillary structure 23, and a plurality of recessed units corresponding to the protruding units are disposed at one end of the second capillary structure 23 attached to the first capillary structure 24, so as to enhance convection, increase heat dissipation area, and facilitate heat convection of the vapor chamber 2.
The heat exchange medium in the vapor chamber 2 can also be liquid metal alloy, the melting point temperature of the liquid metal alloy is 60-200 ℃, and the liquid metal alloy is one or the combination of more of Bi-based alloy, Sn-based alloy or Ga-based alloy. However, the liquid metal alloy generally has a problem of a large thermal expansion rate, and in order to solve this problem, in an embodiment of the present invention, as shown in fig. 15, 16 and 17, the volume of the vapor chamber is increased, that is, the volume of the hollow structure between the upper shell 21 and the lower shell 22 is increased.
Specifically, the rib plate is fixed on the lower shell 22, and the first capillary structure and the second capillary structure are replaced by a "well" structure formed by surrounding the rib plate, and the rib plate plays a role in conducting heat, supporting the liquid metal alloy and fixing the vapor chamber. And filling the liquid metal alloy serving as a phase change material to the specified scale mark. Concave-convex grooves in corresponding positions are arranged on the upper shell 21 and the lower shell 22 and are fixed through bolts. Compared with the traditional vapor chamber, the vapor chamber has the advantage that the heat conduction capability of the vapor chamber is greatly improved due to the fact that the liquid metal alloy has higher heat conductivity.
To sum up, the embodiment of the utility model provides a compound cooling system, the heat dissipation problem of improvement vacuum cavity soaking plate that can be better, the heat that gives the vacuum cavity soaking plate with a direction transmission passes through other directions that liquid metal alloy transmitted for the vacuum cavity soaking plate, utilizes and is solid-state liquid metal alloy in the exocoel to absorb its heat liquefaction, has effectively strengthened the radiating efficiency of vacuum cavity soaking plate, has reduced the used heat of vacuum cavity soaking plate simultaneously to this heat dissipation and the energy storage effect of phase change material that has realized the vacuum cavity soaking plate.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A composite heat dissipation system, comprising:
the phase change structure and the vacuum cavity vapor chamber are mutually abutted; the phase change structure includes: a rib plate, a liquid metal alloy and an outer cavity; the outer cavity is internally provided with a plurality of ribbed plates which are arranged at intervals, and the liquid metal alloy is loaded in a hollow structure formed by the outer cavity and the ribbed plates.
2. The composite heat dissipation system of claim 1, wherein the vacuum chamber vapor chamber comprises: the device comprises a heat exchange medium, an upper shell, a capillary structure and a lower shell; the upper shell, the capillary structure and the lower shell are sequentially stacked; the heat exchange medium soaks the capillary structure, and the capillary structure and the heat exchange medium are both arranged in the hollow structure formed by the upper shell and the lower shell.
3. The composite heat dissipation system of claim 2, wherein the capillary structure comprises: a first capillary structure and a second capillary structure; the first capillary structure and the second capillary structure are mutually attached and are sequentially stacked in the hollow structure formed by the upper shell and the lower shell.
4. The composite heat dissipation system of claim 3, wherein a plurality of protruding units are disposed at an end of the first capillary structure attached to the second capillary structure, and a plurality of recessed units are disposed at an end of the second capillary structure attached to the first capillary structure.
5. The composite heat dissipation system of claim 3, wherein the heat exchange medium is the liquid metal alloy.
6. The composite heat dissipation system of claim 5, wherein the liquid metal alloy has a melting point temperature of 60-200 ℃, and the liquid metal alloy is a combination of one or more of a Bi-based alloy, a Sn-based alloy, or a Ga-based alloy.
7. The compound heat dissipation system of claim 1, wherein the vacuum chamber vapor chamber is provided with heat exchange surfaces, at least one of the heat exchange surfaces of the vacuum chamber vapor chamber is in contact with a heat source, and at least one of the heat exchange surfaces of the vacuum chamber vapor chamber is in contact with the outer chamber.
8. The composite heat dissipation system of claim 1, wherein a heat conduction layer made of heat conduction glue is disposed on the heat exchange surface of the vapor chamber of the vacuum chamber abutting against the outer chamber.
9. The composite heat dissipation system of claim 1, wherein the outer chamber is a metal outer chamber.
10. The composite heat dissipation system according to claim 1, wherein the number of the vacuum chamber vapor chamber is plural, each of the vacuum chamber vapor chambers abuts in sequence, and the phase change structure abuts against the plural vacuum chamber vapor chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169109.2U CN210298392U (en) | 2019-07-24 | 2019-07-24 | Composite heat dissipation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169109.2U CN210298392U (en) | 2019-07-24 | 2019-07-24 | Composite heat dissipation system |
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| CN210298392U true CN210298392U (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290686A (en) * | 2019-07-24 | 2019-09-27 | 中国科学院理化技术研究所 | A kind of composite radiating system |
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- 2019-07-24 CN CN201921169109.2U patent/CN210298392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290686A (en) * | 2019-07-24 | 2019-09-27 | 中国科学院理化技术研究所 | A kind of composite radiating system |
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