CN110779365A - Various roll-bond aluminium temperature-uniforming plate of heat source distribution - Google Patents
Various roll-bond aluminium temperature-uniforming plate of heat source distribution Download PDFInfo
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- CN110779365A CN110779365A CN201911227432.5A CN201911227432A CN110779365A CN 110779365 A CN110779365 A CN 110779365A CN 201911227432 A CN201911227432 A CN 201911227432A CN 110779365 A CN110779365 A CN 110779365A
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- heat source
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- 238000009826 distribution Methods 0.000 title claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 19
- 239000004411 aluminium Substances 0.000 title description 2
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000009792 diffusion process Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/025—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes having non-capillary condensate return means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a blown-up aluminum temperature-uniforming plate with various heat source distributions, which comprises a shell; at least two independently distributed sealing cavities are arranged in the shell, working media are pumped in the sealing cavities in a vacuum mode and injected into the sealing cavities, and a plurality of channels are arranged in the sealing cavities. According to the invention, the working medium is more uniformly distributed in the shell by arranging the plurality of independent sealing cavities, so that the distribution limitation on the heat sources is reduced, and the heat source distribution mode is more diversified, such as that a plurality of heat sources with the same power are uniformly distributed or a plurality of heat sources with different powers are distributed as required.
Description
Technical Field
The invention relates to the technical field of electronic radiators, in particular to an expansion type aluminum temperature-equalizing plate with various heat source distributions.
Background
Along with the improvement of the performance of various communication and electronic products, the power of a chip is increased, the heat flux density is increased, the required heat dissipation area is larger, the heat dissipation area is limited by space and weight, the heat dissipation area of a heat radiator is limited within a specified range, and the heat conduction capability of the heat radiator can be only improved in order to solve the problem of heat dissipation.
The inflation type temperature-uniforming plate comprises a shell, wherein the shell is vacuumized and filled with working media, a channel obtained by inflation is further arranged in the shell, and the working media are evaporated and condensed in the channel. The heat source is contacted with the inflation type temperature-equalizing plate, and then the heat dissipation of the heat source is realized.
The roll-bond type temperature-uniforming plate is simple in structure and capable of achieving two-dimensional conduction, but the roll-bond type temperature-uniforming plate is not provided with a capillary structure, and the condensed working medium can only return to the bottom of the shell again under the action of gravity. Therefore, a high power heat source must be at the lowest and a low power heat source must be placed above, and the distribution of the heat sources is limited by the structure of the inflatable temperature-equalizing plate.
However, in real-world scenarios, many heat sources cannot be completely designed at the bottom. Therefore, the working fluid in the inner part of the blowing-type temperature-equalizing plate must be filled to more than 60 percent of the volume of the whole channel. However, the increase of the working medium can cause the temperature of the whole roll-bond temperature-equalizing plate to be uneven, the heat dissipation capacity to be reduced, the heat source above the roll-bond temperature-equalizing plate can not be cooled well, and the roll-bond temperature-equalizing plate can work at high temperature for a long time, so that a chip is burnt out or a high-temperature alarm is given and the roll-bond temperature-equalizing plate is stopped.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the inflation type aluminum temperature-equalizing plate with various heat source distributions according to the defects of the prior art, and solve the problem that a plurality of heat sources with the same power cannot be uniformly distributed for heat dissipation.
The technical scheme of the invention is realized as follows:
a blowing-expansion type aluminum temperature-equalizing plate with various heat source distributions comprises a shell; the shell is internally provided with at least two independently distributed sealing cavities, the sealing cavities are vacuumized and filled with working media, and a plurality of channels are arranged in the sealing cavities.
In a further technical scheme, the distances between the sealing cavities are the same or different.
In a further technical scheme, the volumes in the sealing cavities are the same or different.
In a further technical scheme, the volumes of the working mediums in the sealing cavities are the same or different.
In a further technical scheme, at least two sealing cavities are distributed up and down, and a heat source end is arranged on one side of the shell.
In a further technical scheme, the channel comprises a drainage channel, the drainage channel is obliquely arranged, and the inclination direction is from high to low to the heat source end; the condensed working medium flows to the heat source end along the drainage channel; the evaporated working medium is far away from the heat source end along the drainage channel.
In a further technical scheme, the channel comprises a backflow channel, the backflow channel is arranged on one side, close to the heat source end, in the sealing cavity, and the backflow channel is communicated with lower ports of the drainage channels; and the condensed working medium flows out from the lower ports of the plurality of drainage channels and enters the backflow channel to be collected and refluxed.
In a further technical scheme, the channel comprises a diffusion channel, the diffusion channel is arranged on one side, far away from the heat source end, of the sealing cavity, and the diffusion channel is communicated with upper ports of the drainage channels; and the evaporated working medium is diffused from the upper ports of the plurality of drainage channels and enters the diffusion channels to be collected and diffused.
In a further technical scheme, the drainage channel is at least communicated with a diversion channel, and the upper drainage channel is communicated with the lower drainage channel through the diversion channel; the condensed working medium flows into a drainage channel below along the diversion channel; and the evaporated working medium is diffused into the upper drainage channel along the flow distribution channel.
In a further technical scheme, the upper and lower adjacent shunting channels are distributed in a staggered manner.
By adopting the technical scheme, the invention has the beneficial effects that:
(1) through setting up a plurality of independent sealed chambeies, make working medium distribute more evenly in the casing, and then reduced the distribution restriction to the heat source, the heat source distribution mode is more various, for example the heat source evenly distributed of a plurality of the same power, or the heat source of a plurality of different powers distributes as required.
(2) The distances between the sealed cavities can be set to be the same or different according to the position requirements of the heat sources, and the distance can also be set adaptively, so that various heat source distribution modes are realized.
(3) The volume of the sealing cavity can be set to be the same or different according to the requirement of the contact area of the heat source and the shell, and the volume can also be set adaptively, so that various heat source distribution modes are realized.
(4) The working medium volume in the sealing cavity can be set to be the same or different according to the power requirement of the heat source, the working medium volume is adapted to be adjusted, and various heat source distribution modes are realized.
(5) By arranging the flow guide channel which inclines from high to low to the heat source end, the condensed working medium is guided to the heat source end in a shorter path, and the evaporated working medium is guided away from the heat source end in a shorter path, so that the left-right temperature difference of the sealed cavity is reduced, and the heat radiation performance is improved; meanwhile, the condensed working medium is well supplemented to the upper part of one side, close to the heat source end, in the sealing cavity, so that the heat of an upper heat source is taken away, the temperature of the upper heat source is effectively reduced, the temperature difference between the upper part and the lower part of the sealing cavity is further reduced, and the heat dissipation performance is improved.
(6) The backflow channel can concentrate working media after cold flow, and the diffusion channel can concentrate evaporated working media, so that vapor and liquid are effectively separated, the working media are quickly condensed and evaporated, and the heat dissipation performance is improved.
(7) The flow distribution channel can provide sufficient space, so that the evaporated working medium is uniformly diffused upwards, the temperature difference in the sealing cavity is reduced, and the heat dissipation performance is improved.
(8) The upper and lower adjacent shunting channels are distributed in a staggered manner, so that cold-flowing working media can flow in one or more drainage channels all the time and finally are guided to the heat source end, and the cold-flowing working media are prevented from directly flowing back to the bottom of the sealing cavity along the channels under the action of gravity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 only 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 schematic structural diagram of the first embodiment.
Fig. 2 is an enlarged view at M of fig. 1.
Fig. 3 is a schematic structural diagram of the second embodiment.
Fig. 4 is a schematic structural diagram of the third embodiment.
In fig. 1 and 2, the direction of the solid arrow is the movement direction of the condensed working medium, and the direction of the dotted arrow is the movement direction of the evaporated working medium.
In the figure, 10-shell, 11-heat source end, 12-working medium, 13-channel, 14-sealed cavity, 21-first heat source, 22-second heat source, 23-third heat source, 24-fourth heat source, 31-drainage channel, 32-reflux channel, 33-diffusion channel and 34-shunt channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in a first embodiment of the present invention, an aluminum vapor chamber with a versatile heat source distribution comprises a housing 10; two independently distributed sealed cavities 14 are provided in the housing 10. The two sealed cavities 14 are distributed up and down, and one side of the shell 10 is provided with a heat source end 11. The sealed cavity 14 is vacuumized and filled with working medium 12, and a plurality of channels 13 are arranged in the sealed cavity 14.
In the first embodiment, the volumes in the sealed cavities 14 are the same, the volumes of the working mediums 12 in the sealed cavities 14 are the same, and the distance between the sealed cavities 14 is set according to the position of a heat source.
When in application: the first heat source 21, the second heat source 22, the third heat source 23 and the fourth heat source 24 are uniformly distributed on the heat source end 11 up and down, and the power of the four heat sources is the same, so that the uniform distribution mode of the heat sources is realized.
The channel 13 comprises a drainage channel 31, the drainage channel 31 is obliquely arranged, and the oblique direction is from high to low to the heat source end 11; the condensed working medium 12 flows to the heat source end 11 along the flow guide channel 31; the evaporated working medium 12 is far away from the heat source end 11 along the flow guide channel 31.
As shown in fig. 2, the channel 13 includes a backflow channel 32, the backflow channel 32 is disposed in the sealed cavity 14 near the heat source end 11, and the backflow channel 32 communicates with the lower ports of the plurality of flow guiding channels 31; the condensed working medium 12 flows out from the lower ports of the plurality of drainage channels 31 and enters the return channel 32 to be collected and returned. In the first embodiment, return channel 32 is arranged perpendicular to the horizontal plane of working medium 12. It should be noted that the partially evaporated working medium 12 may also diffuse in the return channel 32.
The channel 13 comprises a diffusion channel 33, the diffusion channel 33 is arranged on one side, far away from the heat source end 11, in the sealed cavity 14, and the diffusion channel 33 is communicated with the upper ports of the plurality of drainage channels 31; the evaporated working medium 12 diffuses out from the upper ports of the plurality of drainage channels 31 and enters the diffusion channel 33 to be collected and diffused. In the first embodiment, the diffusion channel 33 is arranged perpendicular to the horizontal plane of the working medium 12. It should be noted that the partially condensed working medium 12 may also flow downward in the diffusion channel 33.
The drainage channel 31 is at least communicated with a diversion channel 34, and the upper drainage channel 31 is communicated with the lower drainage channel 31 through the diversion channel 34; the condensed working medium 12 flows into the lower drainage channel 31 along the diversion channel 34; the evaporated working medium 12 is diffused into the upper flow guide channel 31 along the flow distribution channel 34. The upper and lower adjacent flow dividing passages 34 are arranged in a staggered manner.
In a second embodiment of the present invention, as shown in fig. 3, a blown aluminum vapor chamber with a distributed heat source is provided. The points different from the first embodiment are: in the second embodiment, three sealed cavities 14 are provided, and six heat sources with equal power can be arranged at the heat source end 11.
In a third embodiment of the present invention, as shown in fig. 4, a thermal source distribution-varied thermal-vapor-blown aluminum panel is provided. The points different from the first embodiment are: the widths and the numbers of the diversion channel 31, the backflow channel 32, the diffusion channel 33 and the diversion channel 34 in the third embodiment are different.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A blowing-expansion type aluminum temperature-equalizing plate with various heat source distributions comprises a shell; the method is characterized in that: the shell is internally provided with at least two independently distributed sealing cavities, the sealing cavities are vacuumized and filled with working media, and a plurality of channels are arranged in the sealing cavities.
2. A blown aluminum vapor chamber with a distributed heat source as claimed in claim 1, wherein: the intervals between the seal cavities are the same or different.
3. A blown aluminum vapor chamber with a distributed heat source as claimed in claim 1, wherein: the volumes in the sealing cavities are the same or different.
4. A blown aluminum vapor chamber with a distributed heat source as claimed in claim 1, wherein: the volumes of the working mediums in the sealing cavities are the same or different.
5. A blown aluminum vapor chamber with a distributed heat source as claimed in claim 1, wherein: at least two of the seal cavities are distributed up and down, and one side of the shell is a heat source end.
6. A multiple heat source distribution blown aluminum vapor chamber as claimed in claim 5, wherein: the channel comprises a drainage channel, the drainage channel is obliquely arranged, and the inclination direction is from high to low to the heat source end; the condensed working medium flows to the heat source end along the drainage channel; the evaporated working medium is far away from the heat source end along the drainage channel.
7. The multiple heat source distribution blown aluminum vapor chamber of claim 6, wherein: the channel comprises a backflow channel, the backflow channel is arranged on one side, close to the heat source end, in the sealing cavity, and the backflow channel is communicated with lower ports of the drainage channels; and the condensed working medium flows out from the lower ports of the plurality of drainage channels and enters the backflow channel to be collected and refluxed.
8. The multiple heat source distribution blown aluminum vapor chamber of claim 6, wherein: the channel comprises a diffusion channel, the diffusion channel is arranged on one side, far away from the heat source end, in the sealing cavity, and the diffusion channel is communicated with the upper ports of the drainage channels; and the evaporated working medium is diffused from the upper ports of the plurality of drainage channels and enters the diffusion channels to be collected and diffused.
9. The multiple heat source distribution blown aluminum vapor chamber of claim 6, wherein: the drainage channel is at least communicated with a diversion channel, and the upper drainage channel is communicated with the lower drainage channel through the diversion channel; the condensed working medium flows into a drainage channel below along the diversion channel; and the evaporated working medium is diffused into the upper drainage channel along the flow distribution channel.
10. A multiple heat source distribution blown aluminum vapor chamber as claimed in claim 9, wherein: the upper and lower adjacent shunting channels are distributed in a staggered way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227432.5A CN110779365A (en) | 2019-12-04 | 2019-12-04 | Various roll-bond aluminium temperature-uniforming plate of heat source distribution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227432.5A CN110779365A (en) | 2019-12-04 | 2019-12-04 | Various roll-bond aluminium temperature-uniforming plate of heat source distribution |
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| Publication Number | Publication Date |
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| CN110779365A true CN110779365A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911227432.5A Pending CN110779365A (en) | 2019-12-04 | 2019-12-04 | Various roll-bond aluminium temperature-uniforming plate of heat source distribution |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111542202A (en) * | 2020-04-21 | 2020-08-14 | 华南理工大学 | Inflation type soaking plate and manufacturing method thereof |
| CN113865393A (en) * | 2021-09-22 | 2021-12-31 | 上海精智实业股份有限公司 | Radiator for communication setting |
| CN113993354A (en) * | 2021-11-05 | 2022-01-28 | 深圳市英维克科技股份有限公司 | Radiating fin and thermosiphon radiator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945704A (en) * | 2019-04-24 | 2019-06-28 | 常州恒创热管理有限公司 | Multistage plate-type heat-pipe and radiator |
| CN211178084U (en) * | 2019-12-04 | 2020-08-04 | 东莞市万维热传导技术有限公司 | Various roll-bond aluminium temperature-uniforming plate of heat source distribution |
-
2019
- 2019-12-04 CN CN201911227432.5A patent/CN110779365A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945704A (en) * | 2019-04-24 | 2019-06-28 | 常州恒创热管理有限公司 | Multistage plate-type heat-pipe and radiator |
| CN211178084U (en) * | 2019-12-04 | 2020-08-04 | 东莞市万维热传导技术有限公司 | Various roll-bond aluminium temperature-uniforming plate of heat source distribution |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111542202A (en) * | 2020-04-21 | 2020-08-14 | 华南理工大学 | Inflation type soaking plate and manufacturing method thereof |
| CN111542202B (en) * | 2020-04-21 | 2021-05-14 | 华南理工大学 | Inflation type soaking plate and manufacturing method thereof |
| CN113865393A (en) * | 2021-09-22 | 2021-12-31 | 上海精智实业股份有限公司 | Radiator for communication setting |
| CN113865393B (en) * | 2021-09-22 | 2023-02-03 | 上海精智实业股份有限公司 | Radiator for communication setting |
| WO2023045429A1 (en) * | 2021-09-22 | 2023-03-30 | 上海精智实业股份有限公司 | Heat dissipation device |
| CN113993354A (en) * | 2021-11-05 | 2022-01-28 | 深圳市英维克科技股份有限公司 | Radiating fin and thermosiphon radiator |
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