CN109862764A - A kind of portable piezoelectricity atomisation cold plate - Google Patents
A kind of portable piezoelectricity atomisation cold plate Download PDFInfo
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- CN109862764A CN109862764A CN201910280328.6A CN201910280328A CN109862764A CN 109862764 A CN109862764 A CN 109862764A CN 201910280328 A CN201910280328 A CN 201910280328A CN 109862764 A CN109862764 A CN 109862764A
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- piezoelectricity
- atomisation
- portable
- atomizer
- fluid reservoir
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- 238000000889 atomisation Methods 0.000 title claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 239000011148 porous material Substances 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 27
- 206010037660 Pyrexia Diseases 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 19
- 230000008901 benefit Effects 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003595 mist Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010900 secondary nucleation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The invention proposes a kind of portable piezoelectricity atomisation cold plate, including fluid reservoir, fluid reservoir top is equipped with control panel, and side is equipped with liquid injection port；It further include pulverizer plate, the side of pulverizer plate is connected with fluid reservoir, and the other side is connected with spraying chamber, and 2 or more piezoelectricity atomizers are equipped on pulverizer plate；Spraying chamber side is equipped with heat-conducting plate, and lower end is equipped with liquid outlet.In use, the heat-conducting plate of spraying chamber is tightly attached to fever electronics device surface, piezoelectricity atomizer answers since piezoelectric effect generates pump efficiency under high-frequency circuit driving, is atomized the liquid in fluid reservoir, the heat of heater element is taken away by the misting cooling to heat-conducting plate.Compact overall structure of the present invention is conducive to the integrated and facilitation of cooling device, avoids the defect that traditional spray cooling system is bulky, the device is complicated, whole energy lowers consumption, noise is low, install convenient.
Description
Technical field
The present invention relates to the technical field of refrigeration more particularly to a kind of portable piezoelectricity atomisation cold plates.
Background technique
As electronic product is intended in integrated and micromation, the heating problem of electronic device is increasingly severe, cooling
Technology is increasingly prominent to the importance of electronic device.Spray cooling is a kind of liquid phase-change cooling technology, will by nozzle
Cooling working medium is atomized into high speed fine droplet, and droplet impacts surface to be cooled, passes through droplet impact, thin film drainage, liquid film table
The mechanism augmentation of heat transfer such as face evaporation, liquid film nucleate boiling and secondary nucleation.Misting cooling high, working medium and heat with its heat-sinking capability
Surface temperature difference is small, working medium demand is small, the hysteresis quality that do not boil and does not have the advantages that thermal contact resistance between the surface of solids,
It has broad application prospects in terms of high heat flux density dissipation from electronic devices, and has been successfully applied to computer cooling, spacecraft heat
The fields such as control, laser surgey cooling.Research shows that comparing with air-cooled, the piece knot of electronic component can be made using spray cooling
Temperature reduces by 33 DEG C, lower power consumption 35%.
There are the non-uniform problems of temperature control for misting cooling at present, draw this is because pressure atomized fog jet is sprayed inhomogeneities
It rises.The principle of pressure atomization is the kinetic energy for increasing liquid by pressurization, and liquid is made to overcome surface tension to be atomized into small liquid
Drop.When using pressure atomization, since the process that liquid surface isolates drop has randomness and uncontrollability, lead to generation
Spray droplet also has the characteristics that be unevenly distributed, and piezoelectricity atomization technique can improve spraying inhomogeneities, and have spray
Mist parameter is controllable, be not required to pressure pump, be low in energy consumption, is sprayed the advantages that uniform.
Piezoelectricity atomizing principles are as follows: high frequency ac signal drives piezoelectric ceramics, drives micro pore sheet to generate using piezoelectric effect high
Liquid at micropore is atomized into drop stream of uniform size by frequency vibration.Due to piezoelectricity atomizer unique advantage, it is expected to answer
For in electronic device cooling, improving the uniformity of temperature control, and the power consumption of cooling device is reduced, reduces the volume of cooling device
And weight, be conducive to the integrated and portability of cooling device.
Summary of the invention
Exist for conventional pressure atomizer spraying uneven, causes pressure atomization to be sprayed cold plate temperature control uneven, and
Pressure atomization needs to be equipped with pressure pump, leads to the technical issues of equipment collective is big, energy consumption is high, structure is complicated, and the present invention proposes one
Kind portable piezoelectricity atomisation cold plate.
To solve the above-mentioned problems, the technical scheme of the present invention is realized as follows:
A kind of portable piezoelectricity atomisation cold plate, including fluid reservoir, fluid reservoir top are equipped with control panel, and fluid reservoir side is equipped with
Liquid injection port, the fluid reservoir are connected with pulverizer plate, and pulverizer plate is equipped with piezoelectricity atomizer, piezoelectricity atomizer and control panel
It is connected, piezoelectricity atomizer is matched with spraying chamber, and spraying chamber lower part is equipped with liquid outlet, and spraying chamber side is equipped with thermally conductive
Plate.
Preferably, the setting quantity of the piezoelectricity atomizer is at least two groups.
Preferably, the piezoelectricity atomizer is sandwich piezoelectricity atomizer, and piezoelectricity atomizer includes two panels piezoelectricity
Ceramic membrane, piezoceramics film are connected by conducting wire with control panel, and piezoceramics film is connected with stainless steel micro pore sheet
It connects, the side of stainless steel micro pore sheet is connected with fluid reservoir, and the other side of stainless steel micro pore sheet is connected with spraying chamber.
Preferably, the control panel includes power interface, MCU, high frequency drive circuit and communication module, and power interface passes through
Current transducer is connected with MCU, and MCU is connected with piezoceramics film driving circuit and communication module respectively, piezoelectric ceramics
Film driving circuit is connected by conducting wire with piezoceramics film, and communication module is connected with mobile terminal.
Preferably, the heat-conducting plate is high-thermal conductive metal plate.
Preferably, solenoid valve is equipped in the liquid outlet, it is spraying intracavitary equipped with liquid level sensor, solenoid valve and level sensing
Device is connected with the MCU in control panel.
Preferably, the MCU is STM32F401RET6 single-chip microcontroller.
Beneficial effects of the present invention compared with prior art:
1. piezoelectricity atomizer have the advantages that it is spraying uniformly, be not required to pressure pump, be low in energy consumption, piezoelectricity atomizer is applied to
In misting cooling, the power consumption of cooling device can reduce, reduce the volume and weight of cooling device, be conducive to cooling device
Integrated and portability.
2. portability, the present invention integrates spraying chamber, nozzle plate, fluid reservoir and control circuit, need to only connect water
Pipe and power supply can be used, and avoid that traditional spray cooling system is bulky, the device is complicated, needs pressure pump, power consumption big
The shortcomings that.Can be mounted on various electronic devices according to radiating requirements are convenient, have energy-saving, environmental-friendly and comfortable, noise it is low,
Integrated level is high, compact-sized, install convenient, uses advantage safe, that replacement is convenient.
3. piezoelectricity atomisation size droplet diameter is tiny and is evenly distributed, the working medium stream of pressure atomized fog jet 1/10 can be utilized
Amount generates and is up to 100W/cm2Heat dissipation capacity, help to improve cooling performance and temperature control uniformity, and can significantly reduce working medium and disappear
Consumption.
4, piezoelectricity atomizer can utilize the input power of 5W, generate the atomization quantity of 1.5L/h, and power consumption is pressure mist
Change the 1/20 to 1/15 of nozzle, the power consumption of cooling system can be substantially reduced.
5, the dither frequencies of piezoelectricity atomization driving circuit are 0.1MHz to 1MHz, can reduce traditional spray cooling system
The big noise of bring is pumped in system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the schematic cross-section of Fig. 1.
In figure, 1 is fluid reservoir, and 2 be pulverizer plate, and 3 be spraying chamber, and 4 be control panel, and 5 be piezoelectricity atomizer, and 6 be fluid injection
Mouthful, 7 be liquid outlet, and 8 be piezoceramics film, and 9 be stainless steel micro pore sheet, and 10 be conducting wire, 11 be it is spraying, 12 be heat-conducting plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1: as shown in Figure 1, a kind of portable piezoelectricity atomisation cold plate, including fluid reservoir 1,1 top of fluid reservoir
Equipped with control panel 4,1 side of fluid reservoir is equipped with liquid injection port 6, and cooling working medium enters fluid reservoir 1, the fluid reservoir 1 by liquid injection port 6
It is connected with the side of pulverizer plate 2, pulverizer plate 2 is equipped with piezoelectricity atomizer 5, and the setting quantity of piezoelectricity atomizer 5 is extremely
Two groups few, this programme selects 6 groups of piezoelectricity atomizers 5, and piezoelectricity atomizer 5 is connected with control panel 4, piezoelectricity atomizer 5
It is matched with spraying chamber 3, piezoelectricity atomizer 5 is sandwich piezoelectricity atomizer, and piezoelectricity atomizer 5 is made pottery including two panels piezoelectricity
Porcelain film 8, piezoceramics film 8 are connected by conducting wire 10 with control panel 4, and control panel 4 includes power interface, MCU, high frequency drive
Dynamic circuit and communication module, power interface are connected by current transducer with MCU, and MCU is STM32F401RET6 single-chip microcontroller,
MCU is connected with piezoceramics film driving circuit and communication module respectively, and piezoceramics film driving circuit uses HJD-002
Integrated form high-frequency circuit board, piezoceramics film driving circuit are connected by conducting wire 10 with piezoceramics film 8, communication module
It is connected with mobile terminal, communication module is bluetooth communication module or 4G communication module, and mobile terminal is mobile phone end or iPad, is used
Family can remotely control piezoceramics film working condition by smart phone.
It is fixed as shown in Fig. 2, piezoceramics film 8 is fixedly connected on the outside of i.e. stainless steel micro pore sheet 9 with stainless steel micro pore sheet 9
2 piezoceramics films 8 are equipped with, are equipped with 2000 or so micron order apertures, stainless steel in micro pore sheet 9 by laser boring
I.e. 9 side of stainless steel micro pore sheet that is connected respectively with fluid reservoir 1 and spraying chamber 3 of micro pore sheet 9 is connected with fluid reservoir 1, stainless steel
The other side of micro pore sheet 9 is connected with spraying chamber 3, and cooling working medium is sprayed by stainless steel micro pore sheet 9 into spraying chamber 3, spraying
3 lower part of chamber is equipped with liquid outlet 7, and spraying 3 side of chamber is equipped with heat-conducting plate 12, and heat-conducting plate 12 is tightly fixed to fever electronic device table
Face, MCU are generated by piezoceramics film driving circuit under the driving of high-frequency ac current, and piezoceramics film is imitated due to piezoelectricity
It answers, stainless steel micro pore sheet 9 is driven to generate high-frequency vibration, answered so that micro- taper hole two sides in stainless steel micro pore sheet 9 be made to generate pump efficiency,
Liquid working substance near micropore is atomized into high speed fine droplet, the drop that all micropores generate macroscopically is being formed largely by spraying
11.Spraying 11 are injected into spraying chamber 3, and spraying 3 side of chamber is equipped with heat-conducting plate 12, and heat-conducting plate 12 is tightly fixed to fever electronics device
Part surface, heat-conducting plate 12 are high-thermal conductive metal plate, thermally conductive using the progress of aluminum metal plate, using cooling spray 11 to metal plate table
Face is cooled down, since heat-conducting plate is fitted tightly over the surface of fever electronic device, to take away the heat of fever electronic device.
Embodiment 2: a kind of portable piezoelectricity atomisation cold plate, the liquid outlet 7 is interior to be equipped with solenoid valve, by spraying in chamber 3
Equipped with liquid level sensor, solenoid valve and liquid level sensor are connected with the MCU in control panel 4, and liquid level sensor detection is spraying
Intracavitary SEA LEVEL VARIATION, MCU controls the open state of solenoid valve by relay, and then adjusts water flow, guarantees spraying intracavitary
Water level is no more than piezoelectricity atomizer.
Remaining structure is same as Example 1.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of portable piezoelectricity atomisation cold plate, including fluid reservoir (1), fluid reservoir (1) top is equipped with control panel (4), storage
Flow container (1) side is equipped with liquid injection port (6), which is characterized in that the fluid reservoir (1) is connected with pulverizer plate (2), pulverizer plate (2)
Be equipped with piezoelectricity atomizer (5), piezoelectricity atomizer (5) is connected with control panel (4), piezoelectricity atomizer (5) be sprayed
Chamber (3) matches, and spraying chamber (3) lower part is equipped with liquid outlet (7), and spraying chamber (3) side is equipped with heat-conducting plate (12).
2. portable piezoelectricity atomisation cold plate according to claim 1, which is characterized in that the piezoelectricity atomizer
(5) setting quantity is at least two groups.
3. portable piezoelectricity atomisation cold plate according to claim 1 or 2, which is characterized in that the piezoelectricity atomization spray
Mouth is sandwich piezoelectricity atomizer, and piezoelectricity atomizer (5) includes two panels piezoceramics film (8), piezoceramics film (8)
It is connected by conducting wire (10) with control panel (4), piezoceramics film (8) is connected with stainless steel micro pore sheet (9), stainless steel
The side of micro pore sheet (9) is connected with fluid reservoir (1), and the other side of stainless steel micro pore sheet (9) is connected with spraying chamber (3).
4. portable piezoelectricity atomisation cold plate according to claim 3, which is characterized in that the control panel (4) includes
Power interface, power interface are connected by current transducer with MCU, MCU respectively with piezoceramics film driving circuit and logical
News module is connected, and piezoceramics film driving circuit is connected by conducting wire (10) with piezoceramics film (8), communication module
It is connected with mobile terminal.
5. portable piezoelectricity atomisation cold plate according to claim 1, which is characterized in that the heat-conducting plate (12) is height
Thermal conductive metal plate.
6. portable piezoelectricity atomisation cold plate according to claim 1, which is characterized in that set in the liquid outlet (7)
There is solenoid valve, liquid level sensor is equipped in spraying chamber (3), solenoid valve and liquid level sensor are connected with the MCU in control panel (4)
It connects.
7. the portable piezoelectricity atomisation cold plate according to claim 4 or 6, which is characterized in that the MCU is
STM32F401RET6 single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910280328.6A CN109862764A (en) | 2019-04-09 | 2019-04-09 | A kind of portable piezoelectricity atomisation cold plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910280328.6A CN109862764A (en) | 2019-04-09 | 2019-04-09 | A kind of portable piezoelectricity atomisation cold plate |
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| Publication Number | Publication Date |
|---|---|
| CN109862764A true CN109862764A (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910280328.6A Pending CN109862764A (en) | 2019-04-09 | 2019-04-09 | A kind of portable piezoelectricity atomisation cold plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175837A (en) * | 2021-04-21 | 2021-07-27 | 常州大学 | Double-side spray cooling heat exchanger |
| CN114340331A (en) * | 2021-12-20 | 2022-04-12 | 江苏大学 | Piezoelectric atomization radiator |
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| US20070133173A1 (en) * | 2005-12-13 | 2007-06-14 | Industrial Technology Research Institute | Compact spray cooling module |
| CN105173622A (en) * | 2015-09-14 | 2015-12-23 | 中南大学 | Dedusting method for conveyor belt of concentrating mill and device thereof |
| CN105611790A (en) * | 2015-11-02 | 2016-05-25 | 上海理工大学 | Enclosed spray cooling device |
| CN106376225A (en) * | 2016-11-25 | 2017-02-01 | 中国科学技术大学 | Plug-type spray cooling device applied to super-computing center |
| CN108224604A (en) * | 2018-01-31 | 2018-06-29 | 珠海格力电器股份有限公司 | A kind of electrical appliance kit cooling system, method and air conditioner |
| CN209861454U (en) * | 2019-04-09 | 2019-12-27 | 郑州轻工业学院 | Portable piezoelectricity atomizing spraying cold drawing |
-
2019
- 2019-04-09 CN CN201910280328.6A patent/CN109862764A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070133173A1 (en) * | 2005-12-13 | 2007-06-14 | Industrial Technology Research Institute | Compact spray cooling module |
| CN105173622A (en) * | 2015-09-14 | 2015-12-23 | 中南大学 | Dedusting method for conveyor belt of concentrating mill and device thereof |
| CN105611790A (en) * | 2015-11-02 | 2016-05-25 | 上海理工大学 | Enclosed spray cooling device |
| CN106376225A (en) * | 2016-11-25 | 2017-02-01 | 中国科学技术大学 | Plug-type spray cooling device applied to super-computing center |
| CN108224604A (en) * | 2018-01-31 | 2018-06-29 | 珠海格力电器股份有限公司 | A kind of electrical appliance kit cooling system, method and air conditioner |
| CN209861454U (en) * | 2019-04-09 | 2019-12-27 | 郑州轻工业学院 | Portable piezoelectricity atomizing spraying cold drawing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175837A (en) * | 2021-04-21 | 2021-07-27 | 常州大学 | Double-side spray cooling heat exchanger |
| CN114340331A (en) * | 2021-12-20 | 2022-04-12 | 江苏大学 | Piezoelectric atomization radiator |
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