CN219802923U - Secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation - Google Patents
Secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation Download PDFInfo
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- CN219802923U CN219802923U CN202320796893.XU CN202320796893U CN219802923U CN 219802923 U CN219802923 U CN 219802923U CN 202320796893 U CN202320796893 U CN 202320796893U CN 219802923 U CN219802923 U CN 219802923U
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- Prior art keywords
- heat sink
- hydroelectric
- heat
- radiator
- cooling
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- 230000005855 radiation Effects 0.000 title claims abstract description 36
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 230000005284 excitation Effects 0.000 title claims abstract description 27
- 238000005524 ceramic coating Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 10
- 239000011159 matrix material Substances 0.000 abstract description 8
- 239000012071 phase Substances 0.000 description 12
- 229910001128 Sn alloy Inorganic materials 0.000 description 4
- PSMFTUMUGZHOOU-UHFFFAOYSA-N [In].[Sn].[Bi] Chemical compound [In].[Sn].[Bi] PSMFTUMUGZHOOU-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 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
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model relates to a secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation, which comprises a matrix, radiating fins and a primary phase change heat sink, wherein a plurality of radiating fins are integrally formed on the matrix, a circulating heat pipe channel is arranged in the matrix, and working media are injected into the circulating heat pipe channel; a liquid injection cavity is arranged in the contact surface of the substrate and the device to be radiated, and a primary phase change heat sink is arranged in the liquid injection cavity; the surfaces of the rest parts except the contact surface with the device to be radiated are covered with high emissivity infrared radiation ceramic coating. The advantages are that: the structure is reasonable, the secondary heat sink technology is applied to the heat dissipation of the hydroelectric excitation equipment, the primary phase-change heat sink is packaged in the substrate, meanwhile, the high-emissivity infrared radiation ceramic coating, the circulating heat pipe channels and the heat dissipation fins which are covered on the surface of the substrate are matched to form the secondary heat dissipation heat sink, and the combination of the secondary heat sink technology and the heat radiator is realized, so that the heat radiator has the capability of resisting impact heat load, and the heat dissipation efficiency is improved.
Description
Technical Field
The utility model belongs to the field of radiators, and particularly relates to a secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation.
Background
The secondary heat sink consists of two parts, namely a primary phase change heat sink; a secondary heat sink. The primary phase change heat sink is in direct contact with the heat source and plays a role in heat buffering; the secondary heat dissipation heat sink is responsible for dissipating the heat absorbed by the primary heat sink to the surrounding environment. The primary phase-change heat sink is a low-temperature solid-liquid phase-change material, which is a low-melting metal bismuth indium tin alloy and organic paraffin composite substance, or bismuth indium tin alloy, and can realize solid-liquid phase change in a set temperature range of 40-85 ℃ according to component regulation. The material has the characteristics of large phase change latent heat (45-200 joules/gram), controllable phase change temperature area, high heat conductivity coefficient (the heat conductivity coefficient exceeds 120W/m.k), low volume expansion rate (less than 2%), large density (small volume), high stability, good compatibility with structural materials (steel and copper) and the like.
The radiation cooling technology is to apply high emissivity infrared radiation ceramic material, the components are graphene ceramic powder, and to transfer the surface heat of the high temperature device into the coating by utilizing the high heat conductivity, high emissivity and superhydrophobicity of the infrared ceramic, and radiate the surface heat to the outside in an infrared mode, so as to accelerate the heat exchange between the device and the outside, reduce the surface and internal temperature of the device, and further improve the stability and service life of the device. Such as: patent application number CN202110174328.5 discloses a high-emissivity infrared ceramic material, and a preparation method and application thereof. Therefore, the high-emissivity infrared radiation ceramic coating is used as a secondary heat dissipation heat sink, and the heat dissipation working condition of impact heat load can be met.
The hydroelectric excitation equipment is started in an excitation mode, stably runs and stops, and is started to work again, and the typical impact heat load application situation is achieved, so that the radiator with the secondary heat sink technology can improve the radiating efficiency of the hydroelectric excitation equipment.
Disclosure of Invention
The utility model aims to provide a secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation, which improves the radiating efficiency of hydroelectric excitation equipment, reduces the volume of the radiator and lightens the weight of the radiator.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
a secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation comprises a matrix, radiating fins and a primary phase change heat sink, wherein a plurality of radiating fins are integrally formed on the matrix, a circulating heat pipe channel is arranged in the matrix, and working media are injected into the circulating heat pipe channel; a liquid injection cavity is arranged in the contact surface of the substrate and the device to be radiated, and a primary phase change heat sink is arranged in the liquid injection cavity;
the surfaces of the rest parts except the contact surface with the device to be radiated are covered with high emissivity infrared radiation ceramic coating.
The heat radiator comprises a substrate, a heat radiation device and a cover plate, wherein the contact surface of the substrate and the heat radiation device is provided with a groove, the groove is provided with a primary phase change heat sink which is packaged in the groove through welding the cover plate, and the groove and the cover plate form a liquid injection cavity; the thickness of the cover plate is 0.2-1 mm.
The base body is fixedly connected with the device to be cooled through a fastener.
The matrix is an aluminum profile.
The thickness of the high emissivity infrared radiation ceramic coating is 1.5-3 mu m.
Compared with the prior art, the utility model has the beneficial effects that:
1. the self-cooling radiation cooling radiator for the hydroelectric excitation is reasonable in structure, the secondary heat sink technology is applied to the heat dissipation of the hydroelectric excitation equipment, the primary phase-change heat sink is packaged in the substrate, meanwhile, the high-emissivity infrared radiation ceramic coating, the circulating heat pipe channel and the radiating fins which are coated on the surface of the substrate are matched to form the secondary heat dissipation heat sink, and the combination of the secondary heat sink technology and the radiator is realized, so that the radiator has the capability of resisting impact heat load, and the heat dissipation efficiency of the hydroelectric excitation equipment is improved.
2. The secondary heat sink self-cooling radiation cooling radiator for water-electricity excitation is compounded with the high-emissivity infrared radiation ceramic coating, so that the application requirement of the self-cooling heat dissipation technology in the field of water-electricity excitation is met. The high-emissivity infrared radiation ceramic coating is thinner, so that the volume and weight are reduced compared with the conventional heat pipe radiator, and the volume and cost of the whole excitation equipment are reduced. In addition, the primary phase-change heat sink is packaged in the substrate, so that the size of the radiator is reduced, and the weight of the radiator is reduced.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a side view of the present utility model.
Fig. 3 is a top view of the present utility model.
Fig. 4 is a rear view of the present utility model.
Fig. 5 is a cross-sectional view taken along line A-A of fig. 1.
Fig. 6 is a cross-sectional view taken along line B-B of fig. 1.
In the figure: 1-a base body 2-radiating fins 3-a primary phase change heat sink 4-a high-emissivity infrared radiation ceramic coating 5-a fastener 6-a circulating heat pipe channel.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Example 1
1-6, a secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation comprises a base body 1, radiating fins 2 and a primary phase change heat sink 3, wherein the base body 1 is integrally formed with a plurality of radiating fins 2, a circulating heat pipe channel 6 is arranged in the base body 1, working media are injected into the circulating heat pipe channel 6, and the working media can circulate according to arrow mark directions of figures 1, 2 and 4; a liquid injection cavity is arranged in the contact surface of the substrate 1 and the device to be cooled, a primary phase change heat sink 3 is arranged in the liquid injection cavity, the primary phase change heat sink 3 is a metal bismuth indium tin alloy and organic paraffin composite substance, or bismuth indium tin alloy can also adopt other low-melting-point liquid metals; the surface of the rest part except the contact surface with the device to be radiated is covered with an infrared radiation ceramic coating 4 with high emissivity. The thickness of the high emissivity infrared radiation ceramic coating 4 is 1.5-3 μm.
Specifically, a groove is formed in the contact surface of the base body 1 and the device to be cooled, the primary phase-change heat sink 3 is packaged in the groove through a welded cover plate, and the groove and the cover plate form a liquid injection cavity; the thickness of the cover plate is 0.2-1 mm, and the cover plate can be directly contacted with a device to be radiated in an abutting mode, so that radiating efficiency is improved. The grooves can be rectangular, circular, triangular and other geometric shapes, and the grooves are arranged on the installation positions of the hydroelectric excitation equipment.
When the impact working condition occurs or is in a high thermal load position, the radiator stores heat which cannot be rapidly dissipated by the primary phase-change heat sink 3, and the temperature of the device to be radiated is not increased due to phase-change heat absorption in the process. After the heat load is generated, stabilized or reduced, the high-emissivity infrared radiation ceramic coating 4 coated on the surface of the substrate 1 is used for carrying out infrared radiation and heat dissipation, so that heat can be quickly released, and after the heat is released, the primary phase-change heat sink 3 is changed into solid again so as to resist the next impact or periodical high-level occurrence.
Example 2
The base body 1 is fixedly connected with the device to be cooled through a fastening piece 5, and the fastening piece 5 is a bolt. Screw holes can be formed in the contact surface of the base body 1 and the device to be cooled, and the base body 1 and the device to be cooled can be directly fixedly connected through screws. The base body 1 is an aluminum profile.
The utility model realizes that the secondary heat sink technology is applied to the heat dissipation of the hydroelectric excitation equipment, the primary phase-change heat sink 3 is packaged in the substrate, meanwhile, the high-emissivity infrared radiation ceramic coating 4, the circulating heat pipe channel 6 and the heat dissipation fins 2 which are covered on the surface of the substrate 1 are matched to form the secondary heat dissipation heat sink, and the combination of the secondary heat sink technology and the radiator is realized, so that the radiator has the capability of resisting impact heat load, the self-cooling heat dissipation technology is applied to the hydroelectric excitation field, and the heat dissipation efficiency of the hydroelectric excitation equipment is improved. In addition, the primary phase change heat sink 3 has high density (5-10 g/cc) and low volume expansion rate (less than 2%), so that the added matrix 1 occupies a small volume. The high-emissivity infrared radiation ceramic coating 4 is only coated on the surface of the radiator, the weight is negligible, but the radiation heat-radiating capacity can improve the heat-radiating efficiency of the radiator greatly.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The technical principle of the present utility model is described above in connection with the specific embodiments. These descriptions are meant only to illustrate the principles of the utility model; and should not be construed as limiting the scope of the utility model in any way. Based on the explanation herein; other embodiments of the present utility model will occur to those skilled in the art without the need for inventive effort; all of which fall within the scope of the present utility model.
Claims (5)
1. The secondary heat sink self-cooling radiation cooling radiator for the hydroelectric excitation is characterized by comprising a base body, radiating fins and a primary phase change heat sink, wherein a plurality of radiating fins are integrally formed on the base body, a circulating heat pipe channel is arranged in the base body, and working media are injected into the circulating heat pipe channel; a liquid injection cavity is arranged in the contact surface of the substrate and the device to be radiated, and a primary phase change heat sink is arranged in the liquid injection cavity;
the surfaces of the rest parts except the contact surface with the device to be radiated are covered with high emissivity infrared radiation ceramic coating.
2. The secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation according to claim 1, further comprising a cover plate, wherein a groove is formed on the contact surface of the substrate and the device to be radiated, the primary phase-change heat sink is packaged in the groove by welding the cover plate on the groove, and the groove and the cover plate form a liquid injection cavity; the thickness of the cover plate is 0.2-1 mm.
3. The secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation according to claim 1, wherein the base body is fixedly connected with the device to be cooled through a fastener.
4. The secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation according to claim 1, wherein the substrate is an aluminum profile.
5. The secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation according to claim 1, wherein the thickness of the high emissivity infrared radiation ceramic coating is 1.5-3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796893.XU CN219802923U (en) | 2023-04-12 | 2023-04-12 | Secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796893.XU CN219802923U (en) | 2023-04-12 | 2023-04-12 | Secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219802923U true CN219802923U (en) | 2023-10-03 |
Family
ID=88184814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320796893.XU Active CN219802923U (en) | 2023-04-12 | 2023-04-12 | Secondary heat sink self-cooling radiation cooling radiator for hydroelectric excitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219802923U (en) |
-
2023
- 2023-04-12 CN CN202320796893.XU patent/CN219802923U/en active Active
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| GR01 | Patent grant | ||
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