CN110112112A - Misting cooling formula cold plate - Google Patents
Misting cooling formula cold plate Download PDFInfo
- Publication number
- CN110112112A CN110112112A CN201910297463.1A CN201910297463A CN110112112A CN 110112112 A CN110112112 A CN 110112112A CN 201910297463 A CN201910297463 A CN 201910297463A CN 110112112 A CN110112112 A CN 110112112A
- Authority
- CN
- China
- Prior art keywords
- runner
- cold plate
- liquid separation
- atomization
- atomizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
-
- 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
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
- H01L23/3672—Foil-like cooling fins or heat sinks
-
- 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
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
- H01L23/4735—Jet impingement
Abstract
The invention discloses a kind of misting cooling formula cold plates, are related to cooling technology field.Including cold plate shell, inlet, leakage fluid dram, liquid separation chamber, atomization chamber, atomizer；Cold plate shell is hollow housing, is respectively equipped with inlet, leakage fluid dram on cold plate shell, the internal cavities of cold plate shell are separated into liquid separation chamber, atomization chamber；Liquid separation chamber is connected to inlet, and atomization chamber is connected to leakage fluid dram；Atomizer is mounted between liquid separation chamber and atomization chamber, and for the entrance of atomizer towards liquid separation chamber, outlet is connected to liquid separation chamber and atomization chamber towards atomization chamber, by atomizer.The present invention has the advantages that liquid cold plate technology and spray cooling are combined, and strong applicability, heat dissipation performance height.
Description
Technical field
The present invention relates to cooling technology field more particularly to a kind of misting cooling formula cold plates.
Background technique
As electronic device is rapidly developed to miniaturization, micromation and integrated direction, power density and calorific value
It increases, the following heat build-up increases with temperature produces passive shadow to the reliability and stability of electronic equipment
It rings, therefore, realizes that high efficiency and heat radiation has become a pass of restricting current high power electronic device development in compact space
Key bottleneck.
Misting cooling is that a kind of emerging high heat flux density heat dissipation technology has and radiates relative to traditional cooling technology
The advantages that ability is strong, thermal contact resistance is low, working medium demand is small, according to existing open source information, misting cooling has been carried out 1200W/cm2
Above heat dissipation performance has a extensive future in terms of high flow capacity density device heat dissipation.But existing spray cooling system liquid
Space needed for body atomization is larger, it is difficult to be effectively integrated in compact electronic equipment, applicability is poor；It is existing spraying cold
But the single-nozzle that system convention uses is sprayed limited coverage area, and drop is unevenly distributed on larger covering surface, leads to temperature control
Consistency is poor, and heat dissipation is uneven；Also, structure is complicated for existing spray cooling system, to large area heat source or array heat source,
Complexity arrangement heat source and compact device space adaptability are poor.
Liquid cold plate is common thermal component in electronic equipment heat control system, simple, technical maturity, shape with structure
Formula is changeable, adaptable, high reliability, but heat dissipation performance is limited.Currently to the cooling medium of cold plate, it is structure-reinforced,
The researchs such as material and technology innovation are more, and even insufficient to its research in conjunction with spray cooling, and combine in the two
Occupancy volume, coverage area, adaptability and versatility etc. be not fully improved, be unable to satisfy current heat control system
Cooling requirements.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind can combine liquid cold plate technology and spray cooling,
Strong applicability, the high misting cooling formula cold plate of heat dissipation performance.
The present invention is to solve above-mentioned technical problem: misting cooling formula cold plate, including cold plate shell by the following technical programs
Body (1), inlet (2), leakage fluid dram (3), liquid separation chamber (4), atomization chamber (5), atomizer (6)；During the cold plate shell (1) is
Empty capsid is respectively equipped with inlet (2), leakage fluid dram (2), the internal cavities of the cold plate shell (1) on the cold plate shell (1)
It is separated into liquid separation chamber (4), atomization chamber (5)；The liquid separation chamber (4) is connected to the inlet (2), and the atomization chamber (5) is connected to institute
State leakage fluid dram (3)；The atomizer (6) is mounted between the liquid separation chamber (4) and the atomization chamber (5), the atomization spray
The entrance of mouth (6) is connected to institute towards the atomization chamber (5), by the atomizer (6) towards the liquid separation chamber (4), outlet
State liquid separation chamber (4) and the atomization chamber (5).
By the way that miniature atomizer is arranged in cold plate shell, liquid cold plate technology and spray cooling are realized
In conjunction with heat dissipation performance is high, and space needed for the atomization of spray cooling system liquid is small, strong applicability.
As the technical solution of optimization, the atomizer (6) is arranged in several rows, and it is more respectively to arrange atomizer (6) composition
Layer spray array.
Atomizer uses array arrangement mode, can be carried out according to different heat sources range, different heat sources quantity and arrangement
It is adaptively adjusted, cooling range is adjusted by the number of plies and the quantity of every layer of atomizer that change atomizer, reaches scattered
Hot uniform, liquid covers reasonable purpose；Spraying coverage area is big, increases film-cooled heat, can adapt to larger area or compared with
The heat dissipation of multi-heat source.
As the technical solution of optimization, the liquid separation chamber (4) includes feed liquor runner (41), liquid separation runner (42)；It is described into
Liquid stream road (41) is connected to the inlet (2)；Several liquid separation runner (42) interval settings, an end seal of each liquid separation runner (42)
It closes, the other end is respectively communicated with the feed liquor runner (41)；
The atomization chamber (5) includes drain runner (51), atomization runner (52)；The drain runner (51) is connected to the row
Liquid mouth (3)；Several atomization runner (52) interval settings, are respectively atomized the closed at one end of runner (52), the other end is respectively communicated with institute
State drain runner (51)；
Each atomization runner (52) respectively corresponds each liquid separation runner (42), the atomization runner (52) and the liquid separation runner
(42) successively intert setting；
Row's atomizer (6), institute are mounted between the corresponding atomization runner (52) of each liquid separation runner (42)
The entrance of atomizer (6) is stated towards the liquid separation runner (42), is exported towards the atomization runner (52).
Compact-sized, high reliablity, the design of liquid separation chamber is depending on cooling range and the number of plies of spray array, each
Flow unbalance factor between atomizer is small, and flow demand is small.
As the technical solution of optimization, the cold plate shell (1) is cuboid, the inlet (2), leakage fluid dram (3) point
It is not located at the two sides of the cold plate shell (1)；Linear feed liquor runner (41) is located in the cold plate shell (1) equipped with described
The side of inlet (2) is simultaneously parallel with the side；Linear each liquid separation runner (42) is parallel to each other, and each liquid separation runner (42) is equal
Perpendicular to the feed liquor runner (41)；Linear drain runner (51), which is located in the cold plate shell (1), is equipped with the drain
The side of mouth (3) is simultaneously parallel with the side；Linear each atomization runner (52) is parallel to each other, and it is vertical to be respectively atomized runner (52)
In the drain runner (51).Structure is simple, facilitates manufacture.
As the technical solution of optimization, the atomizer (6) includes nozzle housing (61), flow deflector (62), the spray
Mouth shell (61) is equipped with hole for water spraying, is equipped with the flow deflector (62) in the hole for water spraying.It can be adjusted by adjusting flow deflector
Save the atomization parameters such as spray angle.
As the technical solution of optimization, external screw thread, the nozzle housing (61) are equipped with around the nozzle housing (61)
It is threadedly attached in the nozzle mounting hole between the liquid separation chamber (4) and the atomization chamber (5).Atomizer facilitates installation
And disassembly.
As the technical solution of optimization, external screw thread is equipped with around the flow deflector (62), the flow deflector (62) passes through
It is threaded in the hole for water spraying.Flow deflector is easy for installation and removal.
As the technical solution of optimization, the internal cavities of the cold plate shell (1) are separated into liquid separation chamber by partition (7)
(4), atomization chamber (5), the partition (7) are an entirety and are linked together with the cold plate shell (1).Improve the knot of cold plate
Structure intensity.
As the technical solution of optimization, fin is equipped between the adjacent atomizer (6) of every layer of the spray array
(8), each fin (8) is located in the atomization chamber (5).By the separation of fin, effectively prevent respectively spraying in spray array
Atomizer cone interferes to form low dynamics stream area between mouth, improves the temperature consistency of heat dissipation region.
As the technical solution of optimization, the fin (8) is linked together with the cold plate shell (1).Improve cold plate
Structural strength, and heat dissipation area is increased, the effective rate of utilization of cooling liquid is improved, cooling efficiency is improved.
The present invention has the advantages that
1, by the way that miniature atomizer is arranged in cold plate shell, liquid cold plate technology and spray cooling are realized
Combination, heat dissipation performance is high, and space needed for the atomization of spray cooling system liquid is small, strong applicability.
2, atomizer use array arrangement mode, can according to different heat sources range, different heat sources quantity and arrange into
Row is adaptively adjusted, and adjusts cooling range by the number of plies and the quantity of every layer of atomizer that change atomizer, reaches
Heat dissipation is uniform, liquid covers reasonable purpose；Spraying coverage area is big, increases film-cooled heat, can adapt to larger area or
Compared with the heat dissipation of multi-heat source.
3, compact-sized, high reliablity, the design of liquid separation chamber is depending on cooling range and the number of plies of spray array, often
Flow unbalance factor between a atomizer is small, and flow demand is small.
4, by adjusting the adjustable atomization parameter of flow deflector, flow deflector is easy for installation and removal, and improves atomizer
Adaptability.
5, by the separation of fin, effectively prevent in spray array that atomizer cone interferes to form low dynamics stream between each nozzle
Area improves the temperature consistency of heat dissipation region.
Detailed description of the invention
Fig. 1 is the overall structure diagram of misting cooling formula cold plate of the embodiment of the present invention.
Fig. 2 is the schematic diagram of internal structure of misting cooling of embodiment of the present invention formula cold plate.
Fig. 3 is the structural schematic diagram of atomizer of the embodiment of the present invention.
Specific embodiment
As shown in Figure 1-3, misting cooling formula cold plate, including cold plate shell 1, inlet 2, leakage fluid dram 3, liquid separation chamber 4, atomization
Chamber 5, atomizer 6, partition 7, fin 8.
Cold plate shell 1 is the hollow thin sheet casing of cuboid, and external dimensions is 300mm × 150mm × 10mm, and cooling surface is
Liquid-covered areas on the face of two 300mm × 150mm；The two sides of cold plate shell 1 are respectively equipped with inlet 2, leakage fluid dram 3,
The internal cavities of cold plate shell 1 are separated into liquid separation chamber 4, atomization chamber 5 by partition 7, partition 7 be an entirety and with cold plate shell
1 side plate is structure as a whole.
Liquid separation chamber 4 includes feed liquor runner 41, liquid separation runner 42；Linear feed liquor runner 41, which is located in cold plate shell 1, to be set
There are the side of inlet 2 and, feed liquor runner 41 connection inlet 2 parallel with the side；Three linear 42 phases of liquid separation runner
Mutual parallel interval setting, each liquid separation runner 42 are each perpendicular to feed liquor runner 41, closed at one end, the other end point of each liquid separation runner 42
It Lian Tong not feed liquor runner 41.
Atomization chamber 5 includes drain runner 51, atomization runner 52；Linear drain runner 51, which is located in cold plate shell 1, to be set
There are the side of leakage fluid dram 3 and, drain runner 51 connection leakage fluid dram 3 parallel with the side；Three linear 52 phases of atomization runner
Mutual parallel interval setting, each runner 52 that is atomized is each perpendicular to drain runner 51, each to be atomized the closed at one end of runner 52, the other end point
It Lian Tong not drain runner 51；Each atomization runner 52 respectively corresponds each liquid separation runner 42, and atomization runner 52 and liquid separation runner 42 are successively
Interspersed setting.
Atomizer 6 is mounted between liquid separation runner 42 and atomization runner 52, the corresponding mist of each liquid separation runner 42
Change and be mounted on row's atomizer 6 on the partition 7 between runner 52, the entrance of atomizer 6 is exported towards liquid separation runner 42
Towards atomization runner 52, liquid separation runner 42 and atomization runner 52 are connected to by atomizer 6.
Atomizer 6 is arranged in 3 rows, and every row shares 13 atomizers, 6,3 row's atomizer 6 and forms 3 layers of spray array.
Atomizer 6 uses miniature full cone pressure swirl atomizer, and structure is flat thin compact, occupies small in size, each mist
Changing the cooling range that nozzle 6 covers is 40mm × 20mm.
Atomizer 6 includes nozzle housing 61, flow deflector 62；Nozzle housing 61 is cylindrical body, and length 4mm, diameter is
6.5mm is equipped with hole for water spraying between the both ends of nozzle housing 61, and the outlet aperture of hole for water spraying is 0.5mm, and the entrance of hole for water spraying connects
There is mounting flange；External screw thread is equipped with around nozzle housing 61, nozzle housing 61 is threadedly attached in the peace of the nozzle on partition
It fills in hole；External screw thread is equipped with around flow deflector 62, flow deflector 62 is threadedly attached in hole for water spraying, and flow deflector 62 is equipped with
Flat recess.
Fin 8 is equipped between the adjacent atomizer 6 of every layer of spray array, fin 8 is located in atomization runner 52, each wing
One end of piece 8 is connected on partition 7 and perpendicular to partition 7, and the other end is located at the middle part of atomization runner 52, and fin 8 is with partition 7
Integral structure, the spacing of adjacent fins 8 are 20mm.
Cooling liquid enters liquid separation chamber 4 from inlet 2, each liquid separation runner 42 is branched to by feed liquor runner 41, then each
It is evenly distributed in liquid separation runner 42 to the entrance of each atomizer 6；Cool down liquid going out from each atomizer 6 under pressure
Mouth is ejected to atomization chamber 5, conical shaped spray is generated in each atomization runner 52, the liquid of atomization impacts in each atomization runner 52
The cooling surface and fin 8 of cold plate shell 1, take away the heat that heat source is transmitted by cooling surface；Then liquid is by each atomization runner
52 are collected to drain runner 51, are finally discharged from leakage fluid dram 3.
The misting cooling formula cold plate can carry out adaptability tune according to different heat sources range, different heat sources quantity and arrangement
It is whole, cooling range is adjusted by the number of plies and the quantity of every layer of atomizer 6 that change atomizer 6, reach heat dissipation uniformly,
Liquid covers reasonable purpose.
The design of liquid separation chamber 4 ensures cooling liquid depending on cooling range and the number of plies of spray array, by calculating
After the entrance of inlet 2, before branching to each atomizer 6, the flow unbalance factor between each atomizer 6 is less than or waits
In 5%.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of misting cooling formula cold plate, it is characterised in that: including cold plate shell (1), inlet (2), leakage fluid dram (3), liquid separation
Chamber (4), atomization chamber (5), atomizer (6)；The cold plate shell (1) is hollow housing, is set respectively on the cold plate shell (1)
There are inlet (2), leakage fluid dram (2), the internal cavities of the cold plate shell (1) are separated into liquid separation chamber (4), atomization chamber (5)；It is described
Liquid separation chamber (4) is connected to the inlet (2), and the atomization chamber (5) is connected to the leakage fluid dram (3)；Atomizer (6) installation
Between the liquid separation chamber (4) and the atomization chamber (5), the entrance of the atomizer (6) is towards the liquid separation chamber (4), out
Mouth passes through the atomizer (6) and is connected to the liquid separation chamber (4) and the atomization chamber (5) towards the atomization chamber (5).
2. misting cooling formula cold plate as described in claim 1, it is characterised in that: the atomizer (6) is arranged in several rows,
Each row atomizer (6) forms multilayer spraying array.
3. misting cooling formula cold plate as claimed in claim 2, it is characterised in that: the liquid separation chamber (4) includes feed liquor runner
(41), liquid separation runner (42)；The feed liquor runner (41) is connected to the inlet (2)；Several liquid separation runner (42) intervals are set
Set, each liquid separation runner (42) it is closed at one end, the other end is respectively communicated with the feed liquor runner (41)；
The atomization chamber (5) includes drain runner (51), atomization runner (52)；The drain runner (51) is connected to the leakage fluid dram
(3)；Several atomization runner (52) interval settings, are respectively atomized the closed at one end of runner (52), the other end is respectively communicated with the row
Liquid stream road (51)；
Each atomization runner (52) respectively corresponds each liquid separation runner (42), the atomization runner (52) and the liquid separation runner (42) according to
Secondary interspersed setting；
Row's atomizer (6), the mist are mounted between the corresponding atomization runner (52) of each liquid separation runner (42)
Change the entrance of nozzle (6) towards the liquid separation runner (42), exports towards the atomization runner (52).
4. misting cooling formula cold plate as claimed in claim 3, it is characterised in that: the cold plate shell (1) is cuboid, described
Inlet (2), leakage fluid dram (3) are respectively provided at the two sides of the cold plate shell (1)；Linear feed liquor runner (41) is located at described
The interior side equipped with the inlet (2) of cold plate shell (1) is simultaneously parallel with the side；Linear each liquid separation runner (42) is mutual
In parallel, each liquid separation runner (42) is each perpendicular to the feed liquor runner (41)；Linear drain runner (51) is located at the cold plate
The interior side equipped with the leakage fluid dram (3) of shell (1) is simultaneously parallel with the side；Linear each atomization runner (52) is mutually flat
Row is respectively atomized runner (52) and is each perpendicular to the drain runner (51).
5. misting cooling formula cold plate according to any one of claims 1-4, it is characterised in that: the atomizer (6) includes
Nozzle housing (61), flow deflector (62), the nozzle housing (61) are equipped with hole for water spraying, and described lead is equipped in the hole for water spraying
Flow (62).
6. misting cooling formula cold plate as claimed in claim 5, it is characterised in that: be equipped with around the nozzle housing (61) outer
Screw thread, the nozzle housing (61) are threadedly attached in the installation of the nozzle between the liquid separation chamber (4) and the atomization chamber (5)
Kong Zhong.
7. misting cooling formula cold plate as claimed in claim 5, it is characterised in that: be equipped with outer spiral shell around the flow deflector (62)
Line, the flow deflector (62) are threadedly attached in the hole for water spraying.
8. misting cooling formula cold plate according to any one of claims 1-4, it is characterised in that: the cold plate shell (1) it is interior
Portion's cavity is separated into liquid separation chamber (4), atomization chamber (5) by partition (7), the partition (7) be an entirety and with the cold plate
Shell (1) is linked together.
9. such as the described in any item misting cooling formula cold plates of claim 2-4, it is characterised in that: the phase of every layer of the spray array
It is equipped with fin (8) between adjacent atomizer (6), each fin (8) is located in the atomization chamber (5).
10. misting cooling formula cold plate as claimed in claim 9, it is characterised in that: the fin (8) and the cold plate shell
(1) it is linked together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297463.1A CN110112112A (en) | 2019-04-12 | 2019-04-12 | Misting cooling formula cold plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297463.1A CN110112112A (en) | 2019-04-12 | 2019-04-12 | Misting cooling formula cold plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110112112A true CN110112112A (en) | 2019-08-09 |
Family
ID=67483918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910297463.1A Withdrawn CN110112112A (en) | 2019-04-12 | 2019-04-12 | Misting cooling formula cold plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110112112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114501945A (en) * | 2022-01-26 | 2022-05-13 | 华南理工大学 | Spraying liquid cooling phase change module for server, control method and manufacturing method thereof |
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2019
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| CN114501945B (en) * | 2022-01-26 | 2022-10-25 | 华南理工大学 | Spraying liquid cooling phase change module for server, control method and manufacturing method thereof |
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Application publication date: 20190809 |