CN201199303Y - Liquid crystal display screen with radiating device - Google Patents
Liquid crystal display screen with radiating device Download PDFInfo
- Publication number
- CN201199303Y CN201199303Y CN 200820094229 CN200820094229U CN201199303Y CN 201199303 Y CN201199303 Y CN 201199303Y CN 200820094229 CN200820094229 CN 200820094229 CN 200820094229 U CN200820094229 U CN 200820094229U CN 201199303 Y CN201199303 Y CN 201199303Y
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- Prior art keywords
- air
- lcds
- outlet
- heat
- fan
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- Expired - Fee Related
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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
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/36—Airflow channels, e.g. constructional arrangements facilitating the flow of air
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- Physics & Mathematics (AREA)
- 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)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model relates to a liquid-crystal display screen provided with a heat dissipating device, which comprises a shell (1), a liquid-crystal panel (2), a backlight unit (3) and an adapter plate (4); the shell (1) is a closed shell provided with an air inlet port and an air outlet port (6, 7) as well as a heat insulation transparent board (5) on an exit light surface thereof; the clearance between the heat insulation transparent board (5) and the liquid-crystal panel (2) forms a front air channel (8) and the two ends of the front air channel (8) are communicated with the air inlet port and the air outlet port (6, 7); an air driving device (9) corresponding to the front air channel (8) is arranged to drive air from the air inlet port (6) to the air outlet port (7) through the front air channel (8). Aiming at overcoming the defect that liquid-crystal display screens of the prior art has low heat dissipating efficiency when in use outdoors, the liquid-crystal display screen which has the heat dissipating device is provided, thus effectively improving the heat dissipating efficiency of the liquid-crystal display screen applied outdoors.
Description
Technical field
The utility model relates to LCDs, more particularly, relates to a kind of LCDs with heat abstractor of outdoor utility.
Background technology
As the superhigh-brightness liquid crystal display screen of public information display terminal, the heat sinking function to equipment when outdoor utility has proposed more strict requirement.By hot test data that the various sizes liquid crystal panel is carried out repeatedly as can be seen, when the liquid crystal panel temperature reaches 80 ℃ to 85 ℃, will begin blackening around the LCDs.And along with the rising of temperature, the area of blackening will be big more and more more, and in the time of all blackening all over the screen, liquid crystal panel just thoroughly damages.Generally, for general general bright screen, the big appointment of the temperature of panel is higher than about 20 ℃ of environment temperatures, for high bright screen then about 25 ℃.For the situation of outdoor utility, when summer sunlight direct projection the temperature of panel when not starting shooting, can reach 60 ℃ or more than.Technical in prior liquid crystal display, when outdoor utility, all there is the not high defective of radiating efficiency, so can cause the shortening in LCDs life-span, cause a large amount of wastes of resource.
The utility model content
The technical problems to be solved in the utility model is, has the not high defective of radiating efficiency at the above-mentioned LCDs of prior art when the outdoor utility, and a kind of LCDs with heat abstractor of outdoor utility is provided.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of LCDs with heat abstractor, comprise shell, liquid crystal panel, back light unit and card extender, described shell is that exiting surface is provided with a heat-insulation transparent plate and is provided with the closure of inlet and outlet, gap between described heat-insulation transparent plate and the described liquid crystal panel forms a primary air separating duct, the two ends of described primary air separating duct are communicated with described inlet and outlet respectively, correspondingly with described primary air separating duct also are provided with one and make wind blow over the wind dispelling device of described primary air separating duct to described air outlet from described air inlet.
In LCDs described in the utility model, corresponding described air inlet is provided with a vent position on the described card extender, gap between described back light unit and the described card extender forms air channel, a back, the outlet in air channel, described back is communicated with described air outlet, also is provided with one on the described vent position and makes wind blow over the axial fan of air channel, described back to described air outlet from described air inlet.
In LCDs described in the utility model, described card extender is provided with an even numbers vent position, each vent position is provided with a fan, per two vent position are a unit and are spaced from each other between described card extender and described back light unit with dividing plate, wherein the wind direction of the fan on the vent position inwardly, the wind direction of the fan on another vent position outwardly so that in each unit, form a back air channel that is communicated with described inlet and outlet.
In LCDs described in the utility model, described air outlet place also is provided with one and makes the extraction fan of discharging from described air outlet from the wind in described primary air separating duct or air channel, back.
In LCDs described in the utility model, described air inlet place also is provided with the filtration unit that the air that enters from described air inlet is filtered.
In LCDs described in the utility model, described heat-insulation transparent plate is the heat insulation cover plate of high transmission rate.
In LCDs described in the utility model, described wind dispelling device is an air supply direction cylinder fan from the bottom up.
In LCDs described in the utility model, the back of described back light unit is provided with a naked zinc-plated antioxidation coating that is connected with the heat conductive pad of light emitting diode by plated through-hole.
Implement the LCDs with heat abstractor of the present utility model, has following beneficial effect: by a heat-insulation transparent plate is set at exiting surface, and between liquid crystal panel and heat-insulation transparent plate, form the inlet and outlet that a primary air separating duct is communicated with shell, also be provided with the flow direction that a wind dispelling device is controlled wind in the primary air separating duct correspondence, so improved the radiating efficiency of LCDs when outdoor utility effectively; In addition, between back light unit and card extender,, improved the radiating efficiency of LCDs further by increasing by an axial fan or forming the after wind roads with two opposite fans of wind direction.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of embodiment one that the utlity model has the LCDs of heat abstractor;
Fig. 2 is the cut-open view that the back light unit of naked zinc-plated design is adopted at back of the present utility model;
Fig. 3 is the structural representation of embodiment two that the utlity model has the LCDs of heat abstractor;
Fig. 4 is the structural representation of the card extender of embodiment two of the present utility model.
Embodiment
In order to make technology to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment one
As shown in Figure 1, there is shown a kind of LCDs with heat abstractor, comprise shell 1 and be arranged on liquid crystal panel 2, back light unit 3, card extender 4 in the shell, back light unit 3 is arranged on the back of liquid crystal panel 2, card extender 4 is arranged on the back of back light unit 3, liquid crystal panel 2 is used to form image, and back light unit 3 is used for to liquid crystal panel 2 supply light sources, and card extender 4 is in order to the sheet metal of LCDs parts to be installed.
According to feature of the present utility model, shell 1 is that exiting surface is provided with a heat-insulation transparent plate 5 and is provided with the closure of inlet and outlet 6,7, and heat-insulation transparent plate 5 is preferably the heat insulation cover plate of high transmission rate.Gap between heat-insulation transparent plate 5 and the liquid crystal panel 2 forms a primary air separating duct 8, in order to prevent to produce eddy current, the two ends of primary air separating duct 8 are communicated with inlet and outlet 6,7 respectively, correspondingly with primary air separating duct 8 also are provided with one and make wind blow over the wind dispelling device 9 of primary air separating duct 8 to air outlet 7 from air inlet 6.Wherein, wind dispelling device 9 is an air supply direction cylinder fan from the bottom up, and this cylinder fan is an air-supply arrangement.Except adopting air-supply arrangement, air-supply arrangement can also be changed to extractor fan, mode described herein only is a kind of optimal way of the present utility model.During outdoor utility, heat-insulation transparent plate 5 has absorbed a large amount of heats, and under the ordering about of wind dispelling device 9, wind enters from importing and exporting 6,, so all can dispel the heat effectively to heat-insulation transparent plate 5 and liquid crystal panel 2 to air outlet 7 by primary air separating duct 8 after-blow.
Corresponding air inlet 6 is provided with a vent position on the card extender 4, and this vent position is the through hole that is communicated with air inlet 6 on the card extender 4.Gap between back light unit 3 and the card extender 4 forms air channel 101, a back, and the outlet in back air channel 101 is communicated with air outlet 7, also is provided with one on the vent position and makes wind blow over the axial fan 11 of air channel 101, back to air outlet 7 from air inlet 6.The heat that this structure Design can be distributed back light unit 3 blows to outside the LCDs from air outlet 7 through 101 backs, air channel, back.
In order to improve the radiating efficiency of LCDs biglyyer, air outlet 7 places also are provided with one and make the extraction fan 13 of discharging from air outlet 7 from the wind in primary air separating duct 8 or air channel 101, back.
In addition, air inlet 6 places also are provided with the filtration unit 14 that the air that enters from air inlet 6 is filtered, and this design is for dustproof, guarantees that the air that enters from air inlet 6 is clean.
As shown in Figure 2, what adopted at the back of back light unit 3 of the present utility model is naked zinc-plated design, the both positive and negative polarity 20,21 of light emitting diode is welded on the copper-clad 15, is provided with heat conductive pad 18 between light emitting diode and the PCB, is provided with plated through-hole 19 below the heat conductive pad 18.Last copper-clad 15 is used for the wiring of PCB, and following copper-clad 16 is connected with light emitting diode heat conductive pad 18 by plated through-hole 19, is provided with insulation course 17 between the copper- clad 15,16 up and down.In order to prevent the oxidation of copper layer, the utility model has adopted naked zinc-plated design at following copper-clad 16, because there is not other circuit on the copper-clad of naked zinc-plated design, so be referred to as naked tin structure.The copper sheet that tin plating technique can effectively guarantee PCB is not oxidized in the long-term back of using, and naked design can guarantee the smooth and easy of when air blast cooling air-flow, and the heat that light emitting diode can be produced is loose in ambient air effectively.
Embodiment two
As shown in Figure 3, there is shown a kind of LCDs with heat abstractor, comprise shell 1 and be arranged on liquid crystal panel 2, back light unit 3, card extender 4 in the shell, back light unit 3 is arranged on the back of liquid crystal panel 2, card extender 4 is arranged on the back of back light unit 3, liquid crystal panel 2 is used to form image, and back light unit 3 is used for to liquid crystal panel 2 supply light sources, and card extender 4 is in order to the sheet metal of LCDs parts to be installed.
According to feature of the present utility model, shell 1 is that exiting surface is provided with a heat-insulation transparent plate 5 and is provided with the closure of inlet and outlet 6,7, and heat-insulation transparent plate 5 is preferably the heat insulation cover plate of high transmission rate.Gap between heat-insulation transparent plate 5 and the liquid crystal panel 2 forms a primary air separating duct 8, in order to prevent to produce eddy current, the two ends of primary air separating duct 8 are communicated with inlet and outlet 6,7 respectively, correspondingly with primary air separating duct 8 also are provided with one and make wind blow over the wind dispelling device 9 of primary air separating duct 8 to air outlet 7 from air inlet 6.Wherein, wind dispelling device 9 is an air supply direction cylinder fan from the bottom up, and this cylinder fan is an air-supply arrangement.Except adopting air-supply arrangement, air-supply arrangement can also be changed to extractor fan, mode described herein only is a kind of optimal way of the present utility model.During outdoor utility, heat-insulation transparent plate 5 has absorbed a large amount of heats, and under the ordering about of wind dispelling device 9, wind enters from importing and exporting 6,, so all can dispel the heat effectively to heat-insulation transparent plate 5 and liquid crystal panel 2 to air outlet 7 by primary air separating duct 8 after-blow.
In order to improve the radiating efficiency of LCDs biglyyer, air outlet 7 places also are provided with one and make the extraction fan 13 of discharging from air outlet 7 from the wind in primary air separating duct 8 or air channel 102, back.
In addition, air inlet 6 places also are provided with the filtration unit 14 that the air that enters from air inlet 6 is filtered, and this design is for dustproof, guarantees that the air that enters from air inlet 6 is clean.
With reference to figure 2, what also adopted at the back of back light unit 3 among this embodiment is naked zinc-plated design, and the both positive and negative polarity 20,21 of light emitting diode is welded on the copper-clad 15, is provided with heat conductive pad 18 between light emitting diode and the PCB, is provided with plated through-hole 19 below the heat conductive pad 18.Last copper-clad 15 is used for the wiring of PCB, and following copper-clad 16 is connected with light emitting diode heat conductive pad 18 by plated through-hole 19, is provided with insulation course 17 between the copper- clad 15,16 up and down.In order to prevent the oxidation of copper layer, the utility model has adopted naked zinc-plated design at following copper-clad 16, because there is not other circuit on the copper-clad of naked zinc-plated design, so be referred to as naked tin structure.The copper sheet that tin plating technique can effectively guarantee PCB is not oxidized in the long-term back of using, and naked design can guarantee the smooth and easy of when air blast cooling air-flow, and the heat that light emitting diode can be produced is loose in ambient air effectively.
As shown in Figure 4, in 42 inches highlighted light-emitting diodes tube panel, disposed the fan of 2*4 80*80mm altogether, separated with a dividing plate hammer between per two fans.Different modes of emplacement when using according to LCDs (horizontal positioned or vertical the placement), each fan airstream direction also should be made corresponding reasonable disposition.If the application of horizontal positioned, the airflow direction of 4 following fans should (be seen over against the posterior direction of shielding) by outward inward, and the airflow direction of 4 fans on top should be from inside to outside.Such gas flow arrangement direction can be avoided the generation of vortex phenomenon effectively, thereby improves radiating effect greatly.Equally, use if LCDs is vertical the placement, the air-flow of 4 fans that then should the top is set to from inside to outside, and the airflow direction of 4 following fans then should be opposite.
The above only is a preferred embodiment of the present utility model; not in order to restriction the utility model; any modification of being done within every spirit of the present utility model and the principle, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. LCDs with heat abstractor, comprise shell (1), liquid crystal panel (2), back light unit (3) and card extender (4), it is characterized in that, described shell (1) is that exiting surface is provided with a heat-insulation transparent plate (5) and is provided with inlet and outlet (6,7) closure, gap between described heat-insulation transparent plate (5) and the described liquid crystal panel (2) forms a primary air separating duct (8), the two ends of described primary air separating duct (8) respectively with described inlet and outlet (6,7) be communicated with, correspondingly with described primary air separating duct (8) also be provided with one and make wind blow over the wind dispelling device (9) of described primary air separating duct (8) to described air outlet (7) from described air inlet (6).
2. LCDs according to claim 1, it is characterized in that, described card extender (4) is gone up corresponding described air inlet (6) and is provided with a vent position, gap between described back light unit (3) and the described card extender (4) forms air channel (101), a back, the outlet in described air channel, back (10) is communicated with described air outlet (7), also is provided with one on the described vent position and makes wind blow over the axial fan (11) of described air channel, back (10) to described air outlet (7) from described air inlet (6).
3. LCDs according to claim 1, it is characterized in that, described card extender (4) is provided with an even numbers vent position, each vent position is provided with a fan (12), per two vent position are a unit and are spaced from each other between described card extender (4) and described back light unit (3) with dividing plate, wherein the wind direction of the fan (12) on the vent position inwardly, the wind direction of the fan on another vent position (12) outwardly so that in each unit, form a back air channel (102) that is communicated with described inlet and outlet (6,7).
4. according to each described LCDs of claim 1 to 3, it is characterized in that described air outlet (7) is located also to be provided with one and made the extraction fan (13) of discharging from described air outlet (7) from the wind in described primary air separating duct (8) or air channel, back (101 or 102).
5. according to each described LCDs of claim 1 to 3, it is characterized in that described air inlet (6) locates also to be provided with the filtration unit (14) that the air that enters from described air inlet (6) is filtered.
6. LCDs according to claim 1 is characterized in that, described heat-insulation transparent plate (5) is the heat insulation cover plate of high transmission rate.
7. LCDs according to claim 1 is characterized in that, described wind dispelling device (9) is an air supply direction cylinder fan from the bottom up.
8. LCDs according to claim 1 is characterized in that, the back of described back light unit (3) is provided with one and passes through the naked zinc-plated antioxidation coating that plated through-hole (19) is connected with the heat conductive pad (18) of light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820094229 CN201199303Y (en) | 2008-05-27 | 2008-05-27 | Liquid crystal display screen with radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820094229 CN201199303Y (en) | 2008-05-27 | 2008-05-27 | Liquid crystal display screen with radiating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201199303Y true CN201199303Y (en) | 2009-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820094229 Expired - Fee Related CN201199303Y (en) | 2008-05-27 | 2008-05-27 | Liquid crystal display screen with radiating device |
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| Country | Link |
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| CN (1) | CN201199303Y (en) |
Cited By (9)
| 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 |
| CN101965120A (en) * | 2010-09-27 | 2011-02-02 | 同辉佳视(北京)信息技术有限公司 | Heat dissipation equipment and outdoor display cabinet of outdoor display |
| CN102306639A (en) * | 2011-09-23 | 2012-01-04 | 吉林大学 | Squirrel-cage air cooling heat radiator for electronic component |
| WO2015192679A1 (en) * | 2014-06-18 | 2015-12-23 | 上海启钧电子有限公司 | Display module heat dissipation structure |
| CN106855340A (en) * | 2017-03-08 | 2017-06-16 | 合肥华凌股份有限公司 | Giant-screen door of refrigerator body air channel structure and giant-screen refrigerator |
| CN107315271A (en) * | 2017-07-22 | 2017-11-03 | 佛山市正略信息科技有限公司 | A kind of safe easy heat radiation LED display of adjustable point spacing |
| CN111853888A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔智慧厨房电器有限公司 | Display screen protection mechanism and range hood |
| CN111853887A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔智慧厨房电器有限公司 | Fume exhauster |
| CN111853885A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔智慧厨房电器有限公司 | Fume exhauster |
-
2008
- 2008-05-27 CN CN 200820094229 patent/CN201199303Y/en not_active Expired - Fee Related
Cited By (14)
| 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 |
| CN101965120A (en) * | 2010-09-27 | 2011-02-02 | 同辉佳视(北京)信息技术有限公司 | Heat dissipation equipment and outdoor display cabinet of outdoor display |
| CN101965120B (en) * | 2010-09-27 | 2012-10-03 | 同辉佳视(北京)信息技术有限公司 | Heat dissipation equipment and outdoor display cabinet of outdoor display |
| CN102306639A (en) * | 2011-09-23 | 2012-01-04 | 吉林大学 | Squirrel-cage air cooling heat radiator for electronic component |
| WO2015192679A1 (en) * | 2014-06-18 | 2015-12-23 | 上海启钧电子有限公司 | Display module heat dissipation structure |
| CN106855340A (en) * | 2017-03-08 | 2017-06-16 | 合肥华凌股份有限公司 | Giant-screen door of refrigerator body air channel structure and giant-screen refrigerator |
| CN107315271A (en) * | 2017-07-22 | 2017-11-03 | 佛山市正略信息科技有限公司 | A kind of safe easy heat radiation LED display of adjustable point spacing |
| CN111853888A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔智慧厨房电器有限公司 | Display screen protection mechanism and range hood |
| CN111853887A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔智慧厨房电器有限公司 | Fume exhauster |
| CN111853885A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔智慧厨房电器有限公司 | Fume exhauster |
| CN111853888B (en) * | 2019-04-30 | 2024-04-30 | 青岛海尔智慧厨房电器有限公司 | Display screen protection mechanism and range hood |
| CN111853887B (en) * | 2019-04-30 | 2024-07-02 | 青岛海尔智慧厨房电器有限公司 | Fume exhaust fan |
| CN111853885B (en) * | 2019-04-30 | 2024-07-02 | 青岛海尔智慧厨房电器有限公司 | Fume exhaust fan |
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