CN204215121U - A kind of outdoor liquid crystal display heat abstractor - Google Patents
A kind of outdoor liquid crystal display heat abstractor Download PDFInfo
- Publication number
- CN204215121U CN204215121U CN201420514806.8U CN201420514806U CN204215121U CN 204215121 U CN204215121 U CN 204215121U CN 201420514806 U CN201420514806 U CN 201420514806U CN 204215121 U CN204215121 U CN 204215121U
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- China
- Prior art keywords
- liquid crystal
- crystal display
- regulating device
- heat abstractor
- air channel
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- 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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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 55
- 230000001105 regulatory effect Effects 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 3
- 238000010943 off-gassing Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model discloses a kind of outdoor liquid crystal display heat abstractor, comprise environment temperature sensor, the air channel be communicated with the liquid crystal display back side, and form the circulation line of closed circuit with air channel, described circulation line is provided with the circulating fan, Temperature Humidity Sensor, the gentle temperature regulating mechanism of pressure detection regulating device that are connected with controller, and described pressure detection regulating device is positioned at the downstream of gas temperature regulating device.The utility model air channel, the liquid crystal display back side and circulation line constitute a closed space, and therefore cold air wherein only need take away the heat of this enclosure space and liquid crystal display back side thermal source.And the volume of enclosure space is much smaller than the internal volume of whole outdoor liquid crystal display device, therefore only the very little power of need can realize the heat radiation to liquid crystal display.Meanwhile, the utility model can also regulate humidity and the air pressure of recyclegas, prevents pipeline and liquid crystal display circuit board is mouldy gets rusty, and avoids board dielectric to decline, makes equipment maintain longer life, reduce maintenance frequency.
Description
Technical field
The utility model relates to a kind of outdoor liquid crystal display heat abstractor, belongs to LCDs field.
Background technology
Along with the prosperity of business activity and the development of present information science and technology, the demand of the people to the display of giant-screen multimedia messages and human-computer interaction is day by day strong, due to liquid crystal display have light, low-power consumption, bright in luster, pixel advantages of higher, it has become the first-selected display screen that outdoor information is issued.But liquid crystal display is out of doors easily by the impact of environment temperature at present, and summer, weather temperature was high, because the screen of outdoor display screen is large, power is high, and natural heat dissipation cannot meet radiating requirements.During such outwork in summer, temperature is higher, easily causes the faults such as blank screen.Current heat radiation is carried out with complete machine air temp regulator mainly through complete machine is air-cooled, this traditional heat dissipating method carries out radiating treatment to whole casing and non-individual is dispelled the heat to liquid crystal display, so efficiency is lower, energy consumption is higher, fails to reach desirable radiating effect.
Utility model content
Utility model object: the utility model proposes a kind of outdoor liquid crystal display heat abstractor, dispels the heat more efficiently to outdoor liquid crystal display.
Technical scheme: the technical solution adopted in the utility model is a kind of outdoor liquid crystal display heat abstractor, comprise environment temperature sensor, the air channel be communicated with the liquid crystal display back side, and form the circulation line of closed circuit with air channel, described circulation line is provided with the circulating fan, Temperature Humidity Sensor, the gentle temperature regulating mechanism of pressure detection regulating device that are connected with controller, and described pressure detection regulating device is positioned at the downstream of gas temperature regulating device; Pressure detection regulating device and gas temperature regulating device, regulate humiture and the air pressure of gas in closed circuit.
Preferably, described pressure detection regulating device comprises outgassing nonreturn valve, breather check valve, the moisture absorption apparatus of connecting with breather check valve, is positioned at the reserve tank of circulation line 12 lower end.
Preferably, described outgassing nonreturn valve, breather check valve are solenoid valve or Pneumatic check valve.
Preferably, described gas temperature regulating device is semiconductor cooling device or well heater.
Preferably, on the upside of described air channel or downside is provided with air outlet opening.
Preferably, described air channel is provided with heat-insulation layer away from the one side of liquid crystal display.
Preferably, air channel can only be communicated with the power module in the driving circuit of the liquid crystal display back side, forms the enclosure space of heat radiation.
Beneficial effect: air channel of the present invention, the liquid crystal display back side and circulation line constitute a closed space, therefore cold air wherein only need take away the heat of this enclosure space and liquid crystal display back side thermal source.And the volume of enclosure space is much smaller than the internal volume of whole outdoor liquid crystal display device, therefore only the very little power of need can realize the heat radiation to liquid crystal display.Meanwhile, the present invention can also regulate humidity and the air pressure of recyclegas, prevents pipeline and liquid crystal display circuit board by mouldy corrosion, avoids board dielectric to decline, and makes equipment maintain longer life, reduces maintenance frequency.
Accompanying drawing explanation
Fig. 1 is right view of the present invention;
Fig. 2 is front view of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to various equivalents of the present invention has all fallen within the application's claims limited range.
Embodiment 1: liquid crystal display front is generally cover glass and framework, its main pyrotoxin is the backlight module at the back side, driving circuit and driving circuit power unit.As depicted in figs. 1 and 2, the present embodiment is provided with air channel 2 at liquid crystal display 1 back side.Described air channel 2 is communicated with liquid crystal display 1 back side, and identical with liquid crystal display geomery, and therefore fit completely in air channel 2 and liquid crystal display 1 back side.Wind energy simultaneously in air channel 2 enough directly blows to backlight module and the driving circuit at liquid crystal display 1 back side.All be connected with circulation line 12 above and below air channel 2, form a complete loop, wherein circulation line 12 is laid along gravity direction.
Summer, outdoor temperature was high, and therefore liquid crystal display needs the normal work of heat radiation ability in time.Consider that cold air compares hot-air density larger, so when temperature is higher, the air outlet opening 15 of the cold air in air channel 2 above air channel 2 flows into air channel 2, and from top to bottom through liquid crystal display 1 back side.Top and circulation line 12 junction in air channel 2 are air inlet 13, and the below in air channel 2 and the junction of circulation line 12 are air outlet 14.Air inlet 13 and air outlet 14 place are equipped with Temperature Humidity Sensor 6 to detect the gas temperature and the humidity that flow into and flow out air channel 2 body, and Temperature Humidity Sensor 6 is all connected with controller 11 with environment temperature sensor 10.Heat-insulation layer 4 is laid away from the one side of liquid crystal display in air channel 2, and heat-insulation layer 4, air channel 2 and liquid crystal display 1 is fixed together by can 3.Circulating fan 9 drives the air current flow in air channel 2 and circulation line 12.Circulation line 12 is also provided with semiconductor cooling device 8 and pressure detection regulating device 7, wherein semiconductor cooling device 8 is used for reducing the temperature of gas in circulation line 12.Because sharply change just past the air themperature of semiconductor cooling device 8, so arrange the downstream that pressure detection regulating device 7 is positioned at semiconductor cooling device 8, draught head inside and outside its test loop pipeline, timely increase or the air pressure reduced in circulation line 12, keep inside and outside air pressure balance with the sharply change preventing the swollen shrinkage of air heat from causing air pressure, the sharply variable effect of this air pressure is to life-span of circulation line 12 and initiating failure.Pressure detection regulating device 7, circulating fan 9 and semiconductor cooling device 8 are all work under the control of controller 11.
As can be seen here, air channel 2, liquid crystal display 1 back side and circulation line 12 constitute a closed space, therefore cold air wherein only need take away the heat of this enclosure space and liquid crystal display 1 back side thermal source, and existing heat abstractor needs the heat in huge space in whole outdoor liquid crystal display device to take away, the heat in outdoor liquid crystal display device except from also comprise except liquid crystal display outdoor hot-air conduction heat.By contrast, the volume of the present embodiment enclosure space, much smaller than the internal volume of whole outdoor liquid crystal display device, therefore only needs the heat radiation that very little power can realize liquid crystal display.
Described pressure detection regulating device 7 comprises pressure transducer, outgassing nonreturn valve, breather check valve and moisture absorption apparatus (all not shown in figure).When the air pressure in circulation line 12 is lower than ambient pressure, breather check valve opened by controller 11, to balance inner and outer air pressure, closes breather check valve after inside and outside air pressure balance.Breather check valve is also connected moisture absorption apparatus, moisture absorption apparatus, built with hydrophobic membrane, drying agent and oxygen absorbent, reduces the water cut and the oxygen content that enter circulation line 12 gas simultaneously.Prevent closed circuit humidity and oxygen level too high, cause pipeline or circuit board is mouldy or oxidation and rusting.Otherwise when the air pressure in circulation line 12 is higher than ambient pressure, outgassing nonreturn valve opened by controller 11, closes outgassing nonreturn valve after inside and outside air pressure balance by controller 11.
Gas humidity in pipeline is crossed conference and is caused pipeline or the mouldy corrosion of circuit board, the problem of decreasing insulating, this point for the backlight module at the LED liquid crystal display back side and control circuit particularly important.When Temperature Humidity Sensor 6 detects that recyclegas humidity is too high, controller 11 enters dehumidification mode.Under dehumidification mode, semiconductor cooling device 8 starts, and reduces the congealing point of temperature to water vapour of recyclegas, water vapour is liquefied as the globule, is attached on the fin of semiconductor cooling device 8 or the inwall of circulation line 12.Because circulation line 12 is along gravity direction, therefore these globules all finally fall the reserve tank (not shown) be positioned at below circulation line 12.After gas humidity to be recycled is normal, stop dehumidifying.
Embodiment 2: outdoor temperature is low in the winter time conversely, therefore liquid crystal display needs timely heat temperature raising normally to work.Consider that hot-air compares cold air density less, so when temperature is lower, the flowing from the bottom to top under the driving of circulating fan 9 of hot-air in air channel 2, and the semiconductor cooling device in embodiment 1 changes well heater into, pressure detection regulating device is positioned at the downstream of compressor too simultaneously.
The dehumanization method of the present embodiment is also different from embodiment 1.Under the control of controller 11, the limit that well heater makes it be expanded to pipeline can to bear to recyclegas heating, now pressure is greater than ambient pressure.Outgassing nonreturn valve is opened, and a part of wet gas is discharged closed circuit.When inside and outside air pressure balance, outgassing nonreturn valve is closed.Now the temperature of recyclegas is still higher, until its temperature be reduced to stable after, the air pressure in circulation line 12 is less than ambient pressure, now opens breather check valve, and ambient atmos enters closed circuit 12 by moisture absorption apparatus.The gas reentered like this is all dry gas.Said process repeats repeatedly, can constantly reduce recyclegas humidity until reach requirement.
Other parts of the present embodiment are identical with embodiment 1.
Embodiment 3: the outgassing nonreturn valve in embodiment 1 and breather check valve are Pneumatic check valve, the control of uncontrolled device 11.Pneumatic check valve, only when both sides exist draught head, just can be opened and allow air-flow uniflux.Therefore compare the solenoid valve of controlled device 11 control used in embodiment 1 and 2, structure is more simple.
Other parts of the present embodiment are identical with embodiment 1.
Claims (9)
1. an outdoor liquid crystal display heat abstractor, it is characterized in that, comprise environment temperature sensor, the air channel be communicated with the liquid crystal display back side, and form the circulation line of closed circuit with air channel, described circulation line is provided with the circulating fan, Temperature Humidity Sensor, the gentle temperature regulating mechanism of pressure detection regulating device that are connected with controller, and described pressure detection regulating device is positioned at the downstream of gas temperature regulating device; Pressure detection regulating device and gas temperature regulating device, regulate humiture and the air pressure of gas in closed circuit.
2. outdoor liquid crystal display heat abstractor according to claim 1, is characterized in that, described pressure detection regulating device comprises outgassing nonreturn valve, breather check valve, the moisture absorption apparatus of connecting with breather check valve, is positioned at the reserve tank of circulation line lower end.
3. outdoor liquid crystal display heat abstractor according to claim 2, it is characterized in that, described outgassing nonreturn valve, breather check valve are solenoid valve.
4. outdoor liquid crystal display heat abstractor according to claim 2, it is characterized in that, described outgassing nonreturn valve, breather check valve are Pneumatic check valve.
5. outdoor liquid crystal display heat abstractor according to claim 1, is characterized in that, described gas temperature regulating device is semiconductor cooling device.
6. outdoor liquid crystal display heat abstractor according to claim 1, is characterized in that, described gas temperature regulating device is well heater.
7. outdoor liquid crystal display heat abstractor according to claim 1, is characterized in that, on the upside of described air channel or downside is provided with air outlet opening.
8. outdoor liquid crystal display heat abstractor according to claim 1, it is characterized in that, described air channel is provided with heat-insulation layer away from the one side of liquid crystal display.
9. outdoor liquid crystal display heat abstractor according to claim 1, it is characterized in that, described air channel is communicated with the power module of liquid crystal display back side driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514806.8U CN204215121U (en) | 2014-09-09 | 2014-09-09 | A kind of outdoor liquid crystal display heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514806.8U CN204215121U (en) | 2014-09-09 | 2014-09-09 | A kind of outdoor liquid crystal display heat abstractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215121U true CN204215121U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420514806.8U Expired - Fee Related CN204215121U (en) | 2014-09-09 | 2014-09-09 | A kind of outdoor liquid crystal display heat abstractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204215121U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704988A (en) * | 2016-04-14 | 2016-06-22 | 常州轻工职业技术学院 | Electronic device |
| CN106303319A (en) * | 2016-08-09 | 2017-01-04 | 北海爱飞数码科技有限公司 | There is the television set from cooling function |
| CN106468940A (en) * | 2015-08-20 | 2017-03-01 | 鸿富锦精密电子(天津)有限公司 | Server radiating system |
| CN114698338A (en) * | 2022-03-23 | 2022-07-01 | 西北大学 | Passive self-circulation phase change heat dissipation system in space environment and working method thereof |
-
2014
- 2014-09-09 CN CN201420514806.8U patent/CN204215121U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468940A (en) * | 2015-08-20 | 2017-03-01 | 鸿富锦精密电子(天津)有限公司 | Server radiating system |
| CN106468940B (en) * | 2015-08-20 | 2021-01-08 | 鸿富锦精密电子(天津)有限公司 | Server cooling system |
| CN105704988A (en) * | 2016-04-14 | 2016-06-22 | 常州轻工职业技术学院 | Electronic device |
| CN106303319A (en) * | 2016-08-09 | 2017-01-04 | 北海爱飞数码科技有限公司 | There is the television set from cooling function |
| CN114698338A (en) * | 2022-03-23 | 2022-07-01 | 西北大学 | Passive self-circulation phase change heat dissipation system in space environment and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190605 Address after: 210000 2nd Floor, 81 Shitoucheng, Gulou District, Nanjing, Jiangsu Province Patentee after: Nanjing Xinshi Culture Industry Co.,Ltd. Address before: 210000 Jiangsu Province Yuhuatai District Banqiao Fengji Avenue 15 East Orange 06 South Building 104 Jiangsu Graceful Information Technology Co., Ltd. Patentee before: Zhang Gang |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 2nd Floor, 81 Shitoucheng, Gulou District, Nanjing, Jiangsu Province Patentee after: Xinaoshi Jiangsu culture industry Co.,Ltd. Address before: 210000 2nd Floor, 81 Shitoucheng, Gulou District, Nanjing, Jiangsu Province Patentee before: Nanjing Xinshi Culture Industry Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A heat dissipation device for outdoor LCD screen Effective date of registration: 20211215 Granted publication date: 20150318 Pledgee: Bank of Jiangsu Limited by Share Ltd. Nanjing Maigaoqiao branch Pledgor: Xinaoshi Jiangsu culture industry Co.,Ltd. Registration number: Y2021980015044 |
|
| 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 | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221214 Granted publication date: 20150318 Pledgee: Bank of Jiangsu Limited by Share Ltd. Nanjing Maigaoqiao branch Pledgor: Xinaoshi Jiangsu culture industry Co.,Ltd. Registration number: Y2021980015044 |
|
| PE01 | Entry into force 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: An outdoor LCD heat dissipation device Effective date of registration: 20221216 Granted publication date: 20150318 Pledgee: Nanjing Branch of Jiangsu Bank Co.,Ltd. Pledgor: Xinaoshi Jiangsu culture industry Co.,Ltd. Registration number: Y2022980027828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 |