CN211481793U - Natural convection three-dimensional phase change heat dissipation device - Google Patents
Natural convection three-dimensional phase change heat dissipation device Download PDFInfo
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- CN211481793U CN211481793U CN201922305789.2U CN201922305789U CN211481793U CN 211481793 U CN211481793 U CN 211481793U CN 201922305789 U CN201922305789 U CN 201922305789U CN 211481793 U CN211481793 U CN 211481793U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 97
- 230000008859 change Effects 0.000 title claims abstract description 43
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- 238000009833 condensation Methods 0.000 claims abstract description 24
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- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
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- 230000007704 transition Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 6
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Abstract
The utility model relates to the technical field of heat dissipation equipment, and provides a natural convection three-dimensional phase change heat dissipation device which comprises a base and a plurality of heat dissipation units arranged on the base at intervals, wherein an evaporation cavity for holding a heat dissipation working medium is formed inside the base, a plurality of condensation channels communicated with the evaporation cavity are arranged in each heat dissipation unit, the natural convection three-dimensional phase change heat dissipation device can realize the heat dissipation function without additionally arranging air cooling equipment, has small volume, can adapt to the narrow installation space in the outdoor communication equipment, transmits heat in a phase change mode of a heat dissipation working medium, has high heat dissipation efficiency and good heat dissipation effect, the heat dissipation working medium can be recycled under the phase change effect, the heat dissipation working medium is low in loss and good in reliability, and the natural convection three-dimensional phase change heat dissipation device does not have an electric structure and is good in maintenance-free performance and suitable for various outdoor communication equipment.
Description
Technical Field
The utility model relates to a heat dissipation equipment technical field especially provides a three-dimensional phase transition heat abstractor of natural convection.
Background
Along with social development, various technologies are continuously innovated and upgraded, communication technologies are rapidly developed, 2G networks are developed to 5G networks today, accordingly, outdoor communication equipment is widely applied, power consumption of the outdoor communication equipment is increased along with acceleration of network transmission speed, and therefore the problem of heat dissipation of the outdoor communication equipment is urgently solved.
Traditional outdoor communication equipment uses forced air cooling type heat abstractor to dispel the heat usually, but forced air cooling type heat abstractor maintenance rate is higher, and is not suitable for with outdoor communication equipment's high non-maintaining performance requirement, moreover because air specific heat capacity is little and density is low, so the radiating efficiency is low, and the radiating effect is poor, leads to components and parts overheat to burn out easily, and forced air cooling heat abstractor's volume is huge in addition, is difficult to adapt to the inside narrow and small installation space of outdoor communication equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three-dimensional phase transition heat abstractor of natural convection aims at solving current heat abstractor maintenance rate height, the poor and bulky technical problem of radiating effect.
In order to achieve the above object, the utility model adopts the following technical scheme: a natural convection three-dimensional phase change heat dissipation device comprises a base and a plurality of heat dissipation units arranged on the base at intervals, wherein evaporation cavities for containing heat dissipation working media are formed in the base, and a plurality of condensation channels communicated with the evaporation cavities are arranged in each heat dissipation unit.
The utility model provides a three-dimensional phase transition heat abstractor of natural convection has following beneficial effect at least: when the heat-dissipating device is used, the base is installed on an external heat source, heat enters the evaporation cavity through the base, a heat-dissipating working medium in the evaporation cavity is evaporated into a vapor state from a liquid state, evaporated vapor enters the condensation channel and transfers the heat to the heat-dissipating unit, the heat is taken away under the action of natural convection, then the evaporated vapor is cooled into a liquid state and flows back to the evaporation cavity along the condensation channel under the action of gravity, and the circulation is carried out. The natural convection three-dimensional phase change heat dissipation device utilizes a working medium phase change principle and realizes heat dissipation under the action of natural convection, the heat of an external heat source is effectively taken away under the phase change action of a heat dissipation working medium, and the heat of a heat dissipation unit can be effectively taken away under the action of natural convection, therefore, the natural convection three-dimensional phase change heat dissipation device can realize the heat dissipation function without additionally configuring air cooling equipment, has small volume, can adapt to narrow and small installation space inside outdoor communication equipment, transmits heat in a phase change mode of the heat dissipation working medium, has high heat dissipation efficiency and good heat dissipation effect, can be recycled under the action of phase change, has small heat dissipation working medium loss and good reliability, does not have an electrical structure in addition, has good maintenance-free performance, and is suitable for various outdoor communication equipment.
In one embodiment, the base includes a base body and a cover plate covering the base body, the evaporation cavity is disposed in the base body, the cover plate is provided with a plurality of connecting through holes, and each heat dissipation unit is hermetically connected to an edge of the corresponding connecting through hole, so that the condensation channel is communicated with the evaporation cavity.
In one embodiment, the heat dissipation unit includes a plate body and a blocking strip, the plate body is hollow to form a plurality of the condensation channels, and the blocking strip is fixedly arranged at one end of the plate body to seal one end openings of the condensation channels.
In one embodiment, the heat dissipation units are obliquely arranged on the base.
In one embodiment, the heat dissipation units are arranged in parallel.
In one embodiment, a plurality of ribs are disposed within the base.
In one embodiment, the plurality of reinforcing ribs are arranged in an array structure.
In one embodiment, the base is provided with a liquid injection joint communicated with the evaporation cavity.
In one embodiment, the bottom of the base is provided with a plurality of mounting holes for connecting with an external heat source.
In one embodiment, the inner wall surface and/or the bottom surface of the evaporation cavity is provided with a sintered powder layer or a sintered net layer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a natural convection three-dimensional phase change heat dissipation device according to an embodiment of the present invention;
FIG. 2 is an exploded view of the natural convection three-dimensional phase change heat dissipating device shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a heat dissipation unit in the natural convection three-dimensional phase change heat dissipation device shown in FIG. 1;
FIG. 4 is a schematic view of a horizontally mounted structure of the natural convection three-dimensional phase change heat dissipation device shown in FIG. 1;
FIG. 5 is a schematic diagram of a vertically mounted structure of the natural convection three-dimensional phase change heat dissipation device shown in FIG. 1;
fig. 6 is a schematic structural diagram of a base of the natural convection three-dimensional phase change heat dissipation device shown in fig. 1.
Wherein, in the figures, the respective reference numerals:
10. the base, 11, pedestal, 111, evaporation chamber, 112, strengthening rib, 12, apron, 121, connect the through-hole, 13, annotate the liquid joint, 14, mounting hole, 20, radiating element, 21, plate body, 211, condensation channel, 22, shutoff strip.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 3, a natural convection three-dimensional phase change heat dissipation device includes a base 10 and a plurality of heat dissipation units 20 installed on the base 10 at intervals, an evaporation cavity 111 for accommodating a heat dissipation working medium is formed inside the base 10, and a plurality of condensation channels 211 communicated with the evaporation cavity 111 are disposed in each heat dissipation unit 20.
When the natural convection three-dimensional phase change heat dissipation device is used, the base 10 is installed on an external heat source, heat enters the evaporation cavity 111 through the base 10, a heat dissipation working medium in the evaporation cavity 111 is evaporated from a liquid state to a vapor state, evaporation vapor enters the condensation channel 211 and transfers the heat to the heat dissipation unit 20, the heat is taken away under the action of natural convection, then the evaporation vapor is cooled to a liquid state, and flows back to the evaporation cavity 111 along the condensation channel 211 under the action of gravity, and the circulation is carried out. The natural convection three-dimensional phase change heat dissipation device utilizes a working medium phase change principle and realizes heat dissipation under the action of natural convection, heat of an external heat source is effectively taken away under the phase change action of a heat dissipation working medium, and heat of the heat dissipation unit 20 can be effectively taken away under the action of natural convection, therefore, the natural convection three-dimensional phase change heat dissipation device can realize a heat dissipation function without additionally arranging air cooling equipment, is small in size, can adapt to narrow and small installation space inside outdoor communication equipment, transmits heat in a phase change mode of the heat dissipation working medium, is high in heat dissipation efficiency and good in heat dissipation effect, can be recycled under the action of the phase change, is small in heat dissipation working medium loss and good in reliability, does not have an electric structure, is good in maintenance-free performance, and is suitable for various outdoor communication equipment.
As shown in fig. 1, the plurality of heat dissipating units 20 may be arranged in a single-row structure or in a multi-row structure, and when the plurality of heat dissipating units 20 are arranged in a multi-row structure, the rows of heat dissipating units 20 are separated from each other to further improve the heat dissipating efficiency.
In an embodiment, please refer to fig. 2, the base 10 includes a base body 11 and a cover plate 12 covering the base body 11, an evaporation cavity 111 is disposed in the base body 11, the cover plate 12 has a plurality of connecting through holes 121, and each heat dissipating unit 20 is hermetically connected to an edge of the corresponding connecting through hole 121, so that the condensing channel 211 is communicated with the evaporation cavity 111. Specifically, the seat body 11, the cover plate 12 and the heat dissipation unit 20 can be hermetically connected with each other by vacuum brazing, nitrogen arc welding or continuous tunnel furnace welding, so that the evaporation cavity 111 and the condensation channel 211 are communicated to form a sealed cavity, and the leakage of the heat dissipation working medium after evaporation is effectively prevented.
In an embodiment, please refer to fig. 3, the heat dissipating unit 20 includes a plate body 21 and a sealing strip 22, the plate body 21 is hollow to form a plurality of condensing channels 211, and the sealing strip 22 is fixedly disposed at one end of the plate body 21 to seal one end of the condensing channels 211. After the heat dissipation working medium is heated and evaporated, the evaporation gas enters the condensation channel 211 from the evaporation cavity 111 through the inlet end of the condensation channel 211 and flows to the position of the blocking strip 22 along the condensation channel 211, the evaporation gas is condensed into the liquid heat dissipation working medium again and flows back to the evaporation cavity 111 along the condensation channel 211 under the action of gravity, and phase change circulation flow of the heat dissipation working medium is effectively achieved.
In an embodiment, please refer to fig. 1 and 2, a plurality of heat dissipation units 20 are obliquely disposed on the base 10. The heat dissipation unit 20 is obliquely arranged on the base 10, so that the natural convection three-dimensional phase change heat dissipation device can be installed at multiple angles, for example, when the base 10 is installed horizontally, please refer to fig. 4, at this time, the heat dissipation working medium is evaporated into vapor, enters the condensation channel 211, is condensed into liquid heat dissipation working medium again, and then flows back to the evaporation cavity 111 along the oblique condensation channel 211; if the base 10 is vertically installed, please refer to fig. 5, at this time, the heat dissipation working medium is evaporated into vapor and then enters the condensation channel 211, and then is condensed into liquid heat dissipation working medium again, and then flows back to the evaporation cavity 111 along the inclined condensation channel 211, so that the natural convection three-dimensional phase change heat dissipation device can adapt to different installation modes of various outdoor communication devices, and the general type of the natural convection three-dimensional phase change heat dissipation device is effectively improved.
In an embodiment, please refer to fig. 1 and fig. 2, the heat dissipating units 20 are disposed in parallel. The plurality of heat dissipation units 20 are arranged in parallel, and the plurality of heat dissipation units 20 can be arranged at equal intervals, so that the plurality of heat dissipation units 20 can be arranged more compactly, the size of the natural convection three-dimensional phase change heat dissipation device is further reduced, and the natural convection three-dimensional phase change heat dissipation device can be suitable for narrow installation space.
In one embodiment, please refer to fig. 2, a plurality of ribs 112 are disposed in the base 10. Specifically, the reinforcing rib 112 is arranged on the bottom surface of the evaporation cavity 111, through the reinforcing rib 112, the strength of the base 10 is effectively improved, the base 10 is effectively prevented from being deformed due to overlarge steam pressure, and then the heat dissipation failure of the strong convection heat dissipation device is caused, the bearing capacity of the strong convection heat dissipation device is effectively increased, the reliability of the strong convection heat dissipation device is further improved, in addition, the surface of the reinforcing rib 112 can also be used as a heat transfer surface of a heat dissipation working medium, the heat transfer of the base 10 is more facilitated, and the heat dissipation efficiency of the strong convection heat dissipation device is further improved.
Further, with continued reference to fig. 2, the plurality of ribs 112 are arranged in an array configuration. Through being the even distribution of a plurality of strengthening ribs 112 array structure in base 10, make base 10 bulk strength even, effectively avoid evaporating 111 inside steam pressure too big and lead to the local deformation of base 10, more effectual increase strong convection current heat abstractor's bearing capacity improves strong convection current heat abstractor's reliability further.
In one embodiment, please refer to fig. 1 and 2, the base 10 is provided with a liquid injection connector 13 communicating with the evaporation chamber 111. Through setting up annotating liquid joint 13, convenience of customers adds the heat dissipation working medium toward evaporation chamber 111, improves above-mentioned strong convection heat abstractor's use convenience.
Specifically, the liquid injection joint 13 is installed on the base 10, and then the joint between the liquid injection joint 13 and the base 10 can be welded and sealed, so that the leakage of the evaporation gas is prevented, and the reliability of the strong convection heat dissipation device is further improved. Among them, there are various welding methods, such as laser welding, flame spot welding, etc., and are not particularly limited herein.
In one embodiment, as shown in fig. 6, the bottom of the base 10 is provided with a plurality of mounting holes 14 for connecting with an external heat source. Specifically, the mounting holes 14 are uniformly distributed on the base 10 to ensure that the bottom surface of the base 10 is effectively attached to an external heat source, thereby improving the heat transfer efficiency between the base 10 and the external heat source.
In one embodiment, the inner wall surface and/or the bottom surface of the evaporation cavity 111 is provided with a sintered powder layer or a sintered mesh layer. When the heat flux density is increased, the carrying capacity of the heat dissipation working medium can be effectively improved by the sintered powder layer or the sintered net layer, the thermal performance deterioration of the strong convection heat dissipation device caused by dry burning inside the base 10 can be effectively prevented, and the heat dissipation performance of the strong convection heat dissipation device can be effectively guaranteed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a three-dimensional phase transition heat abstractor of natural convection which characterized in that: the heat dissipation device comprises a base and a plurality of heat dissipation units arranged on the base at intervals, wherein evaporation cavities for containing heat dissipation working media are formed in the base, and a plurality of condensation channels communicated with the evaporation cavities are arranged in each heat dissipation unit.
2. The natural convection three-dimensional phase change heat dissipating device of claim 1, wherein: the base comprises a base body and a cover plate arranged on the base body in a covering mode, the evaporation cavity is formed in the base body, the cover plate is provided with a plurality of connecting through holes, and each heat dissipation unit is connected to the edge of the corresponding connecting through hole in a sealing mode, so that the condensation channel is communicated with the evaporation cavity.
3. The natural convection three-dimensional phase change heat dissipating device of claim 1, wherein: the heat dissipation unit comprises a plate body and a blocking strip, wherein the plate body is hollow to form a plurality of condensation channels, and the blocking strip is fixedly arranged at one end of the plate body so as to seal one end openings of the condensation channels.
4. The natural convection three-dimensional phase change heat dissipating device of claim 1, wherein: the plurality of heat dissipation units are obliquely arranged on the base.
5. The natural convection three-dimensional phase change heat dissipating device of claim 1, wherein: the plurality of radiating units are arranged in parallel.
6. The natural convection three-dimensional phase change heat dissipating device according to any one of claims 1 to 5, wherein: a plurality of reinforcing ribs are arranged in the base.
7. The natural convection three-dimensional phase change heat dissipating device of claim 6, wherein: a plurality of the reinforcing ribs are arranged in an array structure.
8. The natural convection three-dimensional phase change heat dissipating device according to any one of claims 1 to 5, wherein: the base is provided with a liquid injection joint communicated with the evaporation cavity.
9. The natural convection three-dimensional phase change heat dissipating device according to any one of claims 1 to 5, wherein: the bottom of the base is provided with a plurality of mounting holes used for being connected with an external heat source.
10. The natural convection three-dimensional phase change heat dissipating device according to any one of claims 1 to 5, wherein: and a sintered powder layer or a sintered net layer is arranged on the inner wall surface and/or the bottom surface of the evaporation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922305789.2U CN211481793U (en) | 2019-12-19 | 2019-12-19 | Natural convection three-dimensional phase change heat dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922305789.2U CN211481793U (en) | 2019-12-19 | 2019-12-19 | Natural convection three-dimensional phase change heat dissipation device |
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| CN211481793U true CN211481793U (en) | 2020-09-11 |
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| CN201922305789.2U Active CN211481793U (en) | 2019-12-19 | 2019-12-19 | Natural convection three-dimensional phase change heat dissipation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225991A (en) * | 2021-04-30 | 2021-08-06 | 深圳市汇川技术股份有限公司 | Heat dissipation device and electronic device |
| CN113701532A (en) * | 2021-06-22 | 2021-11-26 | 深圳市飞荣达科技股份有限公司 | Three-dimensional phase change heat dissipation device |
-
2019
- 2019-12-19 CN CN201922305789.2U patent/CN211481793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225991A (en) * | 2021-04-30 | 2021-08-06 | 深圳市汇川技术股份有限公司 | Heat dissipation device and electronic device |
| CN113701532A (en) * | 2021-06-22 | 2021-11-26 | 深圳市飞荣达科技股份有限公司 | Three-dimensional phase change heat dissipation device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Natural convection three-dimensional phase change heat dissipation device Effective date of registration: 20230112 Granted publication date: 20200911 Pledgee: Bank of Communications Limited Shenzhen Branch Pledgor: SHENZHEN SILVER BASIS TECHNOLOGY Co.,Ltd. Registration number: Y2023980031087 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200911 Pledgee: Bank of Communications Limited Shenzhen Branch Pledgor: SHENZHEN SILVER BASIS TECHNOLOGY Co.,Ltd. Registration number: Y2023980031087 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Natural convection three-dimensional phase change heat dissipation device Granted publication date: 20200911 Pledgee: Bank of Communications Limited Shenzhen Branch Pledgor: SHENZHEN SILVER BASIS TECHNOLOGY Co.,Ltd. Registration number: Y2024980004906 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |