CN201018745Y - Outdoor liquid crystal display screen temperature protective equipment - Google Patents
Outdoor liquid crystal display screen temperature protective equipment Download PDFInfo
- Publication number
- CN201018745Y CN201018745Y CN 200720067765 CN200720067765U CN201018745Y CN 201018745 Y CN201018745 Y CN 201018745Y CN 200720067765 CN200720067765 CN 200720067765 CN 200720067765 U CN200720067765 U CN 200720067765U CN 201018745 Y CN201018745 Y CN 201018745Y
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model relates to a temperature protective device which is suitable to cool and heat outdoors liquid crystal box monitor. The temperature protective device comprises a liquid crystal display monitor, an air conditioner, an air outlet and an air inlet which divide a radiation grid on the back of the liquid crystal display monitor into the upper part and the lower part. The air inlet is connected with an outlet wind ventilator in the air conditioner. The air outlet is connected with an inlet wind ventilator. The air conditioner is divided into the upper body and the lower body. The upper body is arranged behind the liquid crystal display monitor and a flat rectangular body. The evaporator passing through the lateral section is arranged in the upper body. The inlet wind ventilator is arranged above the evaporator. A changing wind approach is arranged below the evaporator. The outlet wind ventilator is arranged at the crosswise exit. The electric heater is arranged in the gap. The inlet wind grid is arranged on the lower body. The lower body interior provides a compressor, a air blower and a condenser. The technical proposal effectively provides the outdoors liquid crystal display monitor with a suitable startup and a suitable working condition so as to reduce the job failure, protect the primary element to lengthen the service life. The structure is compact, the outward appearance presents erectly a small area and the stability is good.
Description
Technical field
The utility model is the device that the condition of work of LCDs inside is carried out temperature protection, specifically relates to a kind of outdoor LCDs temperature protective device.
Background technology
Prosperity along with business activity, development of electronic technology, the outdoor advertising that with the LCDs is means extensively is used, vehicle toll collection station out of doors, square, street, building or the like place LCDs is ubiquitous, has made things convenient for people to obtain fresh, the most gorgeous advertising message immediately.
LCDs is a kind of product of being made up of high-tech, precision, expensive electronic devices and components, and they need a relatively good working environment, with guarantee its can be normally, stably work, and can continue than the useful life of growing.But by chance its condition of work is poor: out of doors, directly exposing to the open air under the adverse circumstances of exposing to the weather, is again very cold environment sometimes, a large amount of heats that components and parts produced when itself was worked in addition, often make part, parts or complete machine break down, malfunctioning, even the paralysis.
Present prevent, the improvement means are, above the LCDs back and the dead astern respectively offer the mouth of some turnover gas, different, circle hole shape is arranged, grid etc. is arranged.The principle of utilizing hot-air to rise allows extraneous air enter inside from grid, the hole of LCDs back bottom, discharges in the top grid of LCDs back, hole again.This measure can play a part certain, and components and parts are had the certain protection function, but facts have proved that only this measure is not enough, fault and malfunctioningly still happen occasionally.
According to reports, a kind of method that adopts the semiconductor refrigerating cooling is abroad arranged, directly be configured in the back part of LCDs with the device of semiconductor refrigerating, utilize heat-conduction principle, absorb heat from the back of LCDs, make LCDs cooling, give an inner operational environment preferably, these means have had further effect than the former, have improved the condition of work of a little components and parts.Yet the conduction temperature reduction way of LCDs back wall is still limited to the change effect of display interior space temperature, acts on still not directly, still has the needs that further improve and improve the internal work environment again.
Summary of the invention
The purpose of this utility model intends providing a kind of outdoor LCDs temperature protective device; can directly change the temperature of LCDs inner space; provide good, a suitable operational environment to components and parts, and the influence that not changed by outdoor environment temperature, condition.
The purpose of this utility model so realizes.
1. outdoor LCDs temperature protective device; comprise evaporator, compressor, blower fan, condenser and air intake grid in LCDs and the air conditioner; it is characterized in that; the heat radiation grid hole at LCDs back is divided into the first half and Lower Half; form the air outlet of the first half and the air inlet of Lower Half respectively; air inlet is connected in the air-out fan in the air conditioner, and air outlet is connected in the air intake fan in the air conditioner.
2. according to technical scheme 1 described outdoor LCDs temperature protective device; it is characterized in that; air conditioner is divided into upper and lower two bodies; upper machine body places the behind of LCDs, is the flattened rectangular body, has disposed the logical evaporator that passes through the upper machine body cross section in the body of top; there is the air intake fan top of evaporator; steering air channel is arranged below evaporator, and the horizontal exit at steering air channel is provided with the air-out fan.
3. according to technical scheme 1 described outdoor LCDs temperature protective device, it is characterized in that, between air-out fan and the air inlet wind inlet channel is set.
4. according to technical scheme 4 described outdoor LCDs temperature protective devices, it is characterized in that, the air-out air channel is set between air intake fan and the air outlet.
5. according to technical scheme 1,2 or 4 described outdoor LCDs temperature protective devices, it is characterized in that the air intake fan is provided with most on the upper machine body cross section.
6. according to technical scheme 1,2 or 3 described outdoor LCDs temperature protective devices, it is characterized in that the air-out fan is provided with most on the upper machine body cross section.
7. according to technical scheme 1 or 2 described outdoor LCDs temperature protective devices, it is characterized in that the air conditioner lower body is positioned at the bottom of LCDs and upper machine body, there is air intake grid on the surface of lower body, internal configurations comprise compressor, blower fan and condenser.
8. according to technical scheme 2 described outdoor LCDs temperature protective devices, it is characterized in that, in the interstitial site of evaporator, electric heater is set.
9. according to each described outdoor LCDs temperature protective device in the technical scheme 1 to 4, it is characterized in that air intake fan and/or air-out fan are tube-axial fan.
High temperature season, the air of lower temperature is sent into LCDs inside from the bottom wind inlet channel, make it through LCDs inside, carry out heat exchange with the heating components and parts, exchange back heating gas is discharged from air outlet, the air-out air channel of LCDs top, the components and parts of display screen inside can be in the suitable temperature environment all the time works, keep the good operation condition, make LCDs be difficult for breaking down, the life-span of components and parts obtains prolonging, and has also prolonged the useful life of entire display screen.
In the winter of cold; the air of higher temperature is fed LCDs inside from the bottom wind inlet channel; hot-air rises; through LCDs inside appliance component is heated; reach certain startup, working temperature after element is heated, restart LCDs work, make that the LCDs energy is normal, be subjected to start under the better guard mode; the operating mode of favourable whole device, favourable maintenance and the life-span to entire equipment prolongs.Gas after the heat exchange is discharged from air outlet, the air-out air channel of LCDs top.
When air conditioner and LCDs fit tightly configuration, when the import and export of LCDs directly docks with the outlet, inlet mouth of air conditioner just, can save wherein wind inlet channel or/and the air-out air channel.
The utility model send the air conditioner apparatus structure of hot and cold wind as follows to inner pressure of LCDs.
Complete machine is divided into two bodies up and down.
Upper machine body places the behind of LCDs, be the flattened rectangular body, disposed the logical evaporator that passes through cross section on top, there is the air intake fan top of evaporator, the hot-air that will be come out by the wind inlet channel of LCDs top sucks this device, steering air channel is arranged below evaporator, make the cold air that obtains from the top evaporator change wind direction, transfer to from top to bottom laterally, horizontal exit at steering air channel, the air-out fan is set, will pressurizes again from the cold wind that evaporator comes out and send in the LCDs cavity by the air-out air channel.
In the clearance space of evaporator, the electric heater parts are set.
The components and parts that are provided with in the lower body comprise compressor, blower fan, condenser and air intake grid, and refrigeration pipe interconnects the workpiece in the upper and lower body, handles control by cold and hot temperature controller.
The course of work of the technical program is as follows.
During refrigeration, the gas that the gaseous coolant of low-temp low-pressure process compressor compresses becomes HTHP through condenser, dispels the heat condenser by blower fan, and the refrigerant in the condenser is cooled to the liquid of cryogenic high pressure, enters the vaporization of evaporator refrigerant through throttling arrangement.The hot-air that the air intake fan will be come out by the wind inlet channel of LCDs top blows to evaporator, release heat, air turns cold, through the below steering air channel, make the cold air that obtains from the top evaporator change wind direction, transfer to from top to bottom laterally, air-out fan in the horizontal exit of steering air channel, to pressurize again from the cold wind that evaporator comes out, send in the LCDs cavity by the air-out air channel.Refrigerant in the pipeline of this moment is the gas of low-temp low-pressure, repeats to enter the circulation process behind the compressor.
When the user is arranged to heated condition, temperature reaches set point, the electric heater energising starts, make the hot gas that obtains from electric heater air-out fan by the horizontal exit of steering air channel, hot blast pressurizeed again send in the LCDs cavity, make LCD device normally to start smoothly by the air-out air channel.
In order to guarantee that LCDs obtains enough hot and cold air, in this device, air intake fan and air-out fan are provided with most in same cross section, to guarantee that stronger and uniform cold air, hot gas are arranged.
Under environmental condition is not very abominable state, the forced air supply device can adopt the structure of peripheral hardware blower fan, send into from the Lower Half wind inlet channel at LCDs back by the wind that the blower fan running produces, discharge from air outlet, the air-out air channel on LCDs top, also can play reduction, improve the inner components and parts operational environment of LCDs, the effect that prolongs the LCDs life-span.
This device top operation element is few, arranges compactness, and volume is little, makes to be in outdoor LCDs monnolithic case compactness, attractive in appearance.
The technical program structure can provide outdoor LCDs effectively a suitable startup and operational environment are provided, and reduces the job failure of LCDs, protection components and parts, the useful life of prolongation liquid crystal.Compact integral structure, the outward appearance of formation are configuration up and down, and attractive in appearance, floor space is little, shelf-stability good.
Description of drawings
Fig. 1 is the structure side sectional view that the outdoor LCDs temperature protective device that the utility model proposes and LCDs fit together state;
Fig. 2 is the outdoor LCDs temperature protective device three-dimensional exploded view that the utility model proposes;
Fig. 3 is an outdoor LCDs back view, and its air inlet is positioned at lower backside, and air outlet is positioned at the inclined-plane of top, back;
Fig. 4 is an outdoor LCDs back view, and it all is positioned at the inclined-plane at LCDs back into and out of the air port, and lays respectively at the bottom and the top at back;
Fig. 5 is the end view of outdoor LCDs, and it all is positioned at the inclined-plane at LCDs back into and out of the air port, and lays respectively at the bottom and the top at back, comprise this outdoor LCDs temperature protective device into and out of the air channel.
Among the figure, 1. air-out air channel 2. air intake fans 3. evaporators 4. electric heaters 5. steering air channels 6. air-out fans 7. blower fans 8. compressors 9. Shock-proof bolts 10. air intake grids 11. condensers 12. air inlets 13. LCDs 14. air outlets 15. wind inlet channels
Embodiment
The utility model is with the heat radiation grid hole at the back of LCDs 13, the shape in grid hole of no matter dispelling the heat is circle hole shape or grid, it is divided into the first half and Lower Half, and form the air outlet 14 of the first half and the air inlet 12 of Lower Half respectively, two pipelines are set respectively facing to the first half air outlet 14 and the Lower Half air inlet 12 at display screen back, form the air-out air channel 1 on top and the wind inlet channel 2 of bottom.
Situation according to LCDs 13 back air outlets 14 and air inlet 12, when air conditioner and LCDs 13 fit tightly configuration, the air outlet 14 of LCDs 13, air inlet 12 just with air conditioner on air intake fan 2, when air-out fan 6 docks, can save wherein air-out air channel 1 or/and wind inlet channel 15.
Summer, the air of lower temperature is fed LCDs 13 inside from bottom wind inlet channel 15, make it carry out exchange heat through LCDs 13 inside and heating components and parts, exchange back heating gas is discharged from air outlet 14, the air-out air channel 1 of LCDs 13 tops, the components and parts of display screen inside can be in the suitable temperature environment all the time works, keep the good operation condition, make LCDs 13 be difficult for breaking down, the life-span of components and parts obtains prolonging, and has also prolonged the useful life of entire display screen.
In winter; the air of higher temperature is fed LCDs 13 inside from bottom wind inlet channel 15; hot-air rises; through LCDs 13 inside appliance component is heated; reach certain startup, working temperature after element is heated, restart LCDs 13 work, make that LCDs 13 energy are normal, be subjected to start under the better guard mode; the operating mode of favourable whole device and the maintenance of entire equipment, life-span prolonged.Gas after the heat exchange is discharged from air outlet 14, the air-out air channel 1 of LCDs 13 tops.
The liquid crystal display screen temperature maintenance between 5 ℃ to 35 ℃, thereby prolonged the useful life of liquid crystal display screen effectively and strengthened its job stability.Device has numeral and shows, reflecting liquid crystal screen temperature conditions allows the user grasp the data of first-hand liquid crystal display screen operating ambient temperature intuitively.
The following configuration of structure of the present utility model.
Complete machine is divided into upper and lower two bodies.
Upper machine body places the behind of LCDs 13, be the flattened rectangular body, disposed the logical evaporator 3 that passes through the upper machine body cross sections on top, the top of evaporator 3 is provided with air intake fan 2, will be by the air outlet 14 of LCDs top, the hot-air that wind inlet channel 1 comes out sucks this device, steering air channel 5 is arranged below evaporator 3, make the cold wind that obtains from top evaporator 3 change wind direction, by transferring to from the top down laterally, horizontal exit at steering air channel 5, air-out fan 6 is set, will pressurizes again from the cold wind that evaporator comes out and send in LCDs 13 cavitys by wind inlet channel 15.
There is air intake grid 10 on the lower body surface, and the inner components and parts that are provided with comprise compressor 8, blower fan 7, condenser 11 and, and refrigeration pipe interconnects the workpiece in the upper and lower body, is controlled by cold and hot temperature controller.
The course of work of the technical program is as follows.
During refrigeration, the gaseous coolant of low-temp low-pressure is compressed into the gas of HTHP through compressor 8; Through condenser 11, with condenser 11 heat radiations, refrigerant is cooled to the liquid of cryogenic high pressure by blower fan 7; Enter the vaporization of evaporator 3 refrigerants through throttling arrangement, air intake fan 2 will be blown by the hot-air that comes out in the air-out air channel 14 of LCDs 13 tops to evaporator 3, release heat, air turns cold, through steering air channel 5, make the Cryogenic air that obtains from top evaporator 3 change wind direction, by transferring to from the top down laterally, air-out fan 6 in the horizontal exit of steering air channel 5 will pressurize from the cold wind that evaporator 3 comes out again and send in 13 bodies of LCDs chamber by wind inlet channel 15.Refrigerant in the pipeline of this moment is the gas of low-temp low-pressure, reenters the circulation process behind the compressor 8.
In the lower open air of temperature, when the user is arranged to heated condition, temperature reaches set point, electric heater 4 energisings start, make the hot gas that obtains from top electric heater 4 air-out fan 6 by the horizontal exit of steering air channel 5, hot blast pressurizeed again send in 13 bodies of LCDs chamber, make LCDs 13 to start smoothly by wind inlet channel 15.
In order to guarantee that LCDs obtains enough hot and cold air, in this device, air intake fan 2 and air-out fan 6 are provided with most in the same cross section of upper machine body, to guarantee that stronger and uniform cold air, hot gas are arranged.
Under the non-very abominable state of environmental condition, the forced air supply device can adopt the structure of peripheral hardware blower fan, send into from the air inlet 12 of the Lower Half at LCDs back by the wind that the blower fan running produces, discharge from the air outlet 14 on LCDs top, also can play reduction, improve LCDs 13 inner components and parts operational environments, prolong the effect in LCDs life-span.
The technical program structure can provide a suitable startup and operational environment for effectively outdoor LCDs, reduces the job failure of LCDs, protection components and parts, the useful life of prolongation liquid crystal.Compact integral structure, the outward appearance of formation are configuration up and down, and floor space is little, shelf-stability good.
Claims (9)
1. outdoor LCDs temperature protective device; comprise evaporator (3), compressor (8), blower fan (7), condenser (11) and air intake grid (10) in LCDs (13) and the air conditioner; it is characterized in that; the heat radiation grid hole at LCDs (13) back is divided into the first half and Lower Half; form the air outlet (14) of the first half and the air inlet (12) of Lower Half respectively; air inlet (12) is connected in the air-out fan (6) in the air conditioner, and air outlet (14) is connected in the air intake fan (2) in the air conditioner.
2. according to the described outdoor LCDs temperature protective device of claim 1; it is characterized in that; air conditioner is divided into upper and lower two bodies; upper machine body places the behind of LCDs (13), is the flattened rectangular body, has disposed the logical evaporator (3) that passes through the upper machine body cross section in the body of top; the top configuration air intake fan (2) of evaporator (3); in the below of evaporator (3) steering air channel (5) is arranged,, air-out fan (6) is set in the horizontal exit of steering air channel (5).
3. according to the described outdoor LCDs temperature protective device of claim 1, it is characterized in that, between air-out fan (6) and the air inlet (12) wind inlet channel (15) is set.
4. according to the described outdoor LCDs temperature protective device of claim 4, it is characterized in that, between air intake fan (2) and the air outlet (14) air-out air channel (1) is set.
5. according to claim 1,2 or 4 described outdoor LCDs temperature protective devices, it is characterized in that air intake fan (2) is provided with most on the upper machine body cross section.
6. according to claim 1,2 or 3 described outdoor LCDs temperature protective devices, it is characterized in that air-out fan (6) is provided with most on the upper machine body cross section.
7. according to claim 1 or 2 described outdoor LCDs temperature protective devices; it is characterized in that; the air conditioner lower body is positioned at the bottom of LCDs (13) and upper machine body; there is air intake grid (10) on the surface of lower body, internal configurations comprise compressor (8), blower fan (7) and condenser (11).
8. according to the described outdoor LCDs temperature protective device of claim 2, it is characterized in that, electric heater (4) is set in the interstitial site of evaporator (3).
9. according to each described outdoor LCDs temperature protective device in the claim 1 to 4, it is characterized in that air intake fan (2) and/or air-out fan (6) are tube-axial fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720067765 CN201018745Y (en) | 2007-03-12 | 2007-03-12 | Outdoor liquid crystal display screen temperature protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720067765 CN201018745Y (en) | 2007-03-12 | 2007-03-12 | Outdoor liquid crystal display screen temperature protective equipment |
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| Publication Number | Publication Date |
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| CN201018745Y true CN201018745Y (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200720067765 Expired - Lifetime CN201018745Y (en) | 2007-03-12 | 2007-03-12 | Outdoor liquid crystal display screen temperature protective equipment |
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| CN (1) | CN201018745Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143764A1 (en) * | 2008-05-27 | 2009-12-03 | Shenzhen New Super-Bright Lcd Display Co., Ltd. | Lcd apparatus with heat dissipation arrangements |
| CN101707035B (en) * | 2009-11-18 | 2011-09-28 | 北京同方瑞博数字技术有限公司 | Multifunctional road inquiring and displaying system of bus stop |
| CN103794143A (en) * | 2012-10-29 | 2014-05-14 | 苏州昆拓热控系统股份有限公司 | Outdoor display device |
| CN103971597A (en) * | 2013-01-30 | 2014-08-06 | 苏州昆拓热控系统股份有限公司 | Multi-surface digital display device |
| CN104021730A (en) * | 2013-03-01 | 2014-09-03 | 苏州昆拓热控系统股份有限公司 | Digital display device |
| CN104217646A (en) * | 2013-06-05 | 2014-12-17 | 苏州昆拓热控系统股份有限公司 | Display device with temperature regulation device |
| CN106125383A (en) * | 2016-08-29 | 2016-11-16 | 合肥惠科金扬科技有限公司 | A kind of liquid crystal backlight screen group with heat radiation |
| CN106224433A (en) * | 2016-09-20 | 2016-12-14 | 吉首大学 | Thermal expansion device controls the large-scale damping electronic display of fan radiating |
| CN106292047A (en) * | 2016-08-29 | 2017-01-04 | 合肥惠科金扬科技有限公司 | A kind of liquid crystal display screen of perfect heat-dissipating |
| CN106382328A (en) * | 2016-09-20 | 2017-02-08 | 吉首大学 | Large shock absorption electronic display screen having temperature control heat extraction air door |
| CN106965693A (en) * | 2017-03-21 | 2017-07-21 | 薛建仁 | A kind of charging pile or charging station with refrigerating plant |
| CN110769655A (en) * | 2019-11-04 | 2020-02-07 | 四川格子环保科技有限公司 | Outdoor screen installation mechanism |
-
2007
- 2007-03-12 CN CN 200720067765 patent/CN201018745Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143764A1 (en) * | 2008-05-27 | 2009-12-03 | Shenzhen New Super-Bright Lcd Display Co., Ltd. | Lcd apparatus with heat dissipation arrangements |
| US8471997B2 (en) | 2008-05-27 | 2013-06-25 | Shenzhen New Super-Bright Lcd Display Co., Ltd. | LCD apparatus with heat dissipation arrangements |
| CN101707035B (en) * | 2009-11-18 | 2011-09-28 | 北京同方瑞博数字技术有限公司 | Multifunctional road inquiring and displaying system of bus stop |
| CN103794143A (en) * | 2012-10-29 | 2014-05-14 | 苏州昆拓热控系统股份有限公司 | Outdoor display device |
| CN103971597A (en) * | 2013-01-30 | 2014-08-06 | 苏州昆拓热控系统股份有限公司 | Multi-surface digital display device |
| CN104021730A (en) * | 2013-03-01 | 2014-09-03 | 苏州昆拓热控系统股份有限公司 | Digital display device |
| CN104217646A (en) * | 2013-06-05 | 2014-12-17 | 苏州昆拓热控系统股份有限公司 | Display device with temperature regulation device |
| CN106125383A (en) * | 2016-08-29 | 2016-11-16 | 合肥惠科金扬科技有限公司 | A kind of liquid crystal backlight screen group with heat radiation |
| CN106292047A (en) * | 2016-08-29 | 2017-01-04 | 合肥惠科金扬科技有限公司 | A kind of liquid crystal display screen of perfect heat-dissipating |
| CN106224433A (en) * | 2016-09-20 | 2016-12-14 | 吉首大学 | Thermal expansion device controls the large-scale damping electronic display of fan radiating |
| CN106382328A (en) * | 2016-09-20 | 2017-02-08 | 吉首大学 | Large shock absorption electronic display screen having temperature control heat extraction air door |
| CN106965693A (en) * | 2017-03-21 | 2017-07-21 | 薛建仁 | A kind of charging pile or charging station with refrigerating plant |
| CN110769655A (en) * | 2019-11-04 | 2020-02-07 | 四川格子环保科技有限公司 | Outdoor screen installation mechanism |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |