CN210428014U - Heat radiator for LCD - Google Patents
Heat radiator for LCD Download PDFInfo
- Publication number
- CN210428014U CN210428014U CN201921667041.0U CN201921667041U CN210428014U CN 210428014 U CN210428014 U CN 210428014U CN 201921667041 U CN201921667041 U CN 201921667041U CN 210428014 U CN210428014 U CN 210428014U
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- Prior art keywords
- air
- air outlet
- air inlet
- mounting cover
- shell
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- Expired - Fee Related
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 23
- 230000017525 heat dissipation Effects 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A heat sink for LCD comprises a casing, an air duct, a Venturi tube and a mounting cover; the shell is provided with a first air inlet and a first air outlet; the first air inlet and the first air outlet are arranged side by side from bottom to top; the air guide pipe is arranged on the inner surface of the shell, is positioned at the first air outlet and is provided with a second air inlet and a second air outlet; the second air inlet is arranged downwards; the second air outlets are arranged in parallel along the longitudinal direction and face the transverse direction; the mounting cover is arranged on the shell and is provided with a third air outlet; venturi sets up on the guide duct, and Venturi one end is located second air outlet department, and the Venturi other end is towards the third air outlet, and Venturi is provided with a plurality ofly along vertically side by side, Venturi and second air outlet one-to-one. The utility model provides high circulation of air speed to thermal giving off has been accelerated, and then guarantees LCD ability normal operating.
Description
Technical Field
The utility model relates to a LCD's heat dissipation technical field especially relates to a LCD's heat abstractor.
Background
Liquid crystal displays are flat, ultra-thin display devices consisting of a certain number of color or black and white pixels placed in front of a light source or reflecting surface. Liquid crystal displays are very low power consuming and are therefore favored by engineers for use in battery-operated electronic devices. The main principle is that the current stimulates the liquid crystal molecules to generate points, lines and surfaces which are matched with the back lamp tube to form a picture.
When the temperature of the environment where the liquid crystal display normally operates exceeds, the service life of the liquid crystal display is reduced, and even the liquid crystal display is damaged.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For the technical problem who exists among the solution background art, the utility model provides a LCD's heat abstractor has improved circulation of air speed to thermal giving off has been accelerated, and then guarantees LCD ability normal operating.
(II) technical scheme
The utility model provides a heat dissipation device of a liquid crystal display, which comprises a shell, an air guide pipe, a Venturi tube and a mounting cover;
the shell is provided with a first air inlet and a first air outlet; the first air inlet and the first air outlet are arranged side by side from bottom to top; the air guide pipe is arranged on the inner surface of the shell, is positioned at the first air outlet and is provided with a second air inlet and a second air outlet; the second air inlet is arranged downwards; the second air outlets are arranged in parallel along the longitudinal direction and face the transverse direction; the mounting cover is arranged on the shell and is provided with a third air outlet; venturi sets up on the guide duct, and Venturi one end is located second air outlet department, and the Venturi other end is towards the third air outlet, and Venturi is provided with a plurality ofly along vertically side by side, Venturi and second air outlet one-to-one.
Preferably, the shell is provided with a first filter screen; the first filter screen is positioned at the first air inlet; a second filter screen is arranged on the mounting cover; the second filter screen is positioned at the third air outlet.
Preferably, the bottom end of the air guide pipe is connected with an air guide hopper; the size of the opening of the air guide hopper is gradually increased from top to bottom.
Preferably, the mounting cover is provided with a fan, and the longitudinal two ends of the mounting cover are respectively provided with a fourth air inlet and a fourth air outlet; the fan is positioned at the fourth air inlet, and the blowing direction of the fan faces the fourth air outlet; the shell is provided with a temperature sensor and a processor; the temperature sensor is in communication connection with the processor; the processor is connected with the fan control.
Preferably, the longitudinal two ends of the mounting cover are respectively provided with a third filter screen and a fourth filter screen; the third filter screen is positioned at the fourth air inlet; the fourth filter screen is positioned at the fourth air outlet.
Preferably, the inner surface of the mounting cover is provided with an air guide member; the air guide piece comprises an installation plate and fins; the mounting plate is provided with a vent hole; the fin length direction is parallel with the fan blowing direction, and the fin setting is kept away from venturi one side on the mounting panel on the surface, and the fin is provided with a plurality ofly along vertical direction side by side.
Preferably, two air guide members are arranged in a transverse symmetrical manner with respect to the fan; the fin is located ventilation hole one end and is provided with the chamfer.
The above technical scheme of the utility model has following profitable technological effect: the liquid crystal display generates heat in the shell, so that the temperature of air nearby rises, hot air circulates from bottom to top, enters the air guide pipe from a second air inlet at the bottom of the air guide pipe and flows to the Venturi tube through a second air outlet, the two ends of the middle part of the Venturi tube are narrow, when the hot air passes through the narrow part of the middle part of the Venturi tube, the flowing speed of the hot air rises due to the reduction of the area of the flowing cross section, and the hot air with the increased flowing speed flows out of a third air outlet; when hot air circulates upwards, air negative pressure is generated in the shell, cold air enters the shell from the first air inlet, and the convection velocity of the air in the shell is improved. The utility model provides high circulation of air speed to thermal giving off has been accelerated, and then guarantees LCD ability normal operating.
Drawings
Fig. 1 is a schematic structural view of a heat dissipation device of a liquid crystal display according to the present invention.
Fig. 2 is a schematic diagram of an internal structure of a heat dissipation device of a liquid crystal display according to the present invention.
Fig. 3 is a schematic structural diagram of a housing in a heat dissipation device of a liquid crystal display according to the present invention.
Fig. 4 is a partial structural sectional view of a heat dissipation device of a liquid crystal display according to the present invention.
Fig. 5 is an enlarged view of the structure at a in fig. 4.
Fig. 6 is a schematic structural diagram of a mounting cover in a heat dissipation device of a liquid crystal display according to the present invention.
Fig. 7 is a schematic view of a partial structure of an air guide in a heat dissipation device of a liquid crystal display according to the present invention.
Reference numerals: 1. a housing; 101. a first air inlet; 102. a first air outlet; 2. an air guide pipe; 201. a second air inlet; 202. a second air outlet; 21. a wind guide hopper; 3. a venturi tube; 4. mounting a cover; 401. a third air outlet; 402. a fourth air inlet; 403. a fourth air outlet; 5. a fan; 6. an air guide member; 61. mounting a plate; 611. a vent hole; 62. a fin; 7. a first filter screen; 8. a second filter screen; 9. a third filter screen; 10. a temperature sensor; 11. a processor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-7, the heat dissipation device for a liquid crystal display provided by the present invention comprises a housing 1, an air duct 2, a venturi tube 3 and a mounting cover 4;
the shell 1 is provided with a first air inlet 101 and a first air outlet 102; the first air inlet 101 and the first air outlet 102 are arranged side by side from bottom to top; the air guide pipe 2 is arranged on the inner surface of the shell 1, the air guide pipe 2 is positioned at the first air outlet 102, and a second air inlet 201 and a second air outlet 202 are arranged on the air guide pipe 2; the second air inlet 201 is arranged downwards; a plurality of second air outlets 202 are arranged side by side along the longitudinal direction, and the second air outlets 202 face the transverse direction; the mounting cover 4 is arranged on the shell 1, and a third air outlet 401 is arranged on the mounting cover 4; venturi 3 sets up on guide duct 2, and 3 one end of venturi is located second air outlet 202 department, and the 3 other end of venturi is towards third air outlet 401, and venturi 3 is provided with a plurality ofly along vertically side by side, venturi 3 and second air outlet 202 one-to-one.
In the utility model, the liquid crystal display generates heat in the housing 1, which causes the temperature of the air nearby to rise, the hot air circulates from bottom to top, the hot air enters into the air guide pipe 2 from the second air inlet 201 at the bottom of the air guide pipe 2 and circulates to the venturi tube 3 through the second air outlet 202, the middle part of the venturi tube 3 is narrow at two ends, when the hot air passes through the narrow part at the middle part of the venturi tube 3, the circulation speed of the hot air rises due to the reduction of the cross sectional area of the through flow, and the hot air with the improved circulation speed flows out from the third air outlet 401; when the hot air circulates upwards, negative air pressure is generated in the housing 1, the cold air enters the housing 1 from the first air inlet 101, and the convection velocity of the air in the housing 1 is increased. The utility model provides high circulation of air speed to thermal giving off has been accelerated, and then guarantees LCD ability normal operating.
In an alternative embodiment, the housing 1 is provided with a first filter 7; the first filter screen 7 is positioned at the first air inlet 101; a second filter screen 8 is arranged on the mounting cover 4; the second filter 8 is located at the third air outlet 401.
It should be noted that the first filter 7 and the second filter 8 are provided to prevent dust in the air from entering the inside of the housing 1 and adhering to the surface of the liquid crystal display to cause a reduction in the heat dissipation effect of the liquid crystal display.
In an alternative embodiment, the bottom end of the air guide pipe 2 is connected with an air guide hopper 21; the size of the opening of the air guide hopper 21 is gradually increased from top to bottom.
It should be noted that, by providing the air guiding funnel 21, the hot air can enter the air guiding funnel 21 more smoothly and flow into the air guiding pipe 2 from bottom to top, so that the heat air is more sufficiently dissipated.
In an alternative embodiment, the mounting cover 4 is provided with the fan 5, and both longitudinal ends of the mounting cover 4 are respectively provided with a fourth air inlet 402 and a fourth air outlet 403; the fan 5 is positioned at the fourth air inlet 402, and the blowing direction of the fan 5 faces the fourth air outlet 403; the shell 1 is provided with a temperature sensor 10 and a processor 11; the temperature sensor 10 is in communication connection with the processor 11; the processor 11 is in control connection with the fan 5.
It should be noted that, the maximum ambient temperature at which the lcd can normally operate is preset in the processor 11, the temperature sensor 10 transmits the temperature data detected in real time to the processor 11, when the ambient temperature in the housing 1 exceeds the maximum ambient temperature allowed, the processor 11 controls the fan 5 to start, the fan 5 draws air from the fourth air inlet 402 and blows the air to the fourth air outlet 403, so as to create negative air pressure in the mounting cover 4, and the air flowing out of the venturi tube 3 is drawn to the negative pressure region and finally flows out of the fourth air outlet 403. The circulation speed of the hot air is increased, thereby improving the heat dissipation effect of the liquid crystal display.
In an alternative embodiment, the longitudinal ends of the mounting cover 4 are respectively provided with a third filter screen 9 and a fourth filter screen; the third filter 9 is positioned at the fourth air inlet 402; the fourth filter is located at the fourth air outlet 403.
It should be noted that, by providing the third filter 9 and the fourth filter, dust in the air is prevented from entering the installation cover 4, so as to ensure the tidiness of the internal environment of the installation cover 4.
In an alternative embodiment, the inner surface of the mounting cover 4 is provided with a wind guide 6; the air guide 6 comprises a mounting plate 61 and fins 62; the mounting plate 61 is provided with a vent hole 611; the length direction of the fins 62 is parallel to the blowing direction of the fan 5, the fins 62 are arranged on the surface of one side of the mounting plate 61 far away from the venturi tube 3, and the fins 62 are arranged in a plurality in parallel along the vertical direction.
It should be noted that by providing the air guide 6 to guide the air blown by the fan 5, the air can be circulated in the longitudinal direction, the manufactured air negative pressure region is more balanced, and the hot air flowing out from the venturi tube 3 can be better sucked into the air negative pressure region and discharged from the fourth air outlet 403.
In an alternative embodiment, two air guides 6 are arranged laterally symmetrically with respect to the fan 5; the fin 62 is chamfered at one end of the vent hole 611.
It should be noted that, the end of the fin 62 is provided with a chamfer, so that the air can more smoothly pass through the end of the fin 62, and the circulation speed of the air is further ensured.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The heat dissipation device of the liquid crystal display is characterized by comprising a shell (1), an air guide pipe (2), a Venturi tube (3) and a mounting cover (4);
a first air inlet (101) and a first air outlet (102) are arranged on the shell (1); the first air inlet (101) and the first air outlet (102) are arranged side by side from bottom to top; the air guide pipe (2) is arranged on the inner surface of the shell (1), the air guide pipe (2) is positioned at the first air outlet (102), and a second air inlet (201) and a second air outlet (202) are arranged on the air guide pipe (2); the second air inlet (201) is arranged downwards; a plurality of second air outlets (202) are arranged side by side along the longitudinal direction, and the second air outlets (202) face to the transverse direction; the mounting cover (4) is arranged on the shell (1), and a third air outlet (401) is formed in the mounting cover (4); venturi tube (3) sets up on guide duct (2), and Venturi tube (3) one end is located second air outlet (202) department, and Venturi tube (3) other end is provided with a plurality ofly along vertically side by side towards third air outlet (401), Venturi tube (3) and second air outlet (202) one-to-one.
2. The heat sink of claim 1, wherein the housing (1) is provided with a first filter (7); the first filter screen (7) is positioned at the first air inlet (101); a second filter screen (8) is arranged on the mounting cover (4); the second filter screen (8) is positioned at the third air outlet (401).
3. The heat dissipation device of claim 1, wherein the bottom end of the air duct (2) is connected with an air guide scoop (21); the size of the opening of the air guide hopper (21) is gradually increased from top to bottom.
4. The heat dissipation device of the LCD according to claim 1, wherein the mounting cover (4) is provided with a fan (5), and both longitudinal ends of the mounting cover (4) are respectively provided with a fourth air inlet (402) and a fourth air outlet (403); the fan (5) is positioned at the fourth air inlet (402), and the blowing direction of the fan (5) faces the fourth air outlet (403); the shell (1) is provided with a temperature sensor (10) and a processor (11); the temperature sensor (10) is in communication connection with the processor (11); the processor (11) is in control connection with the fan (5).
5. The heat dissipating device of a liquid crystal display according to claim 4, wherein the mounting cover (4) is provided with a third filter (9) and a fourth filter at both longitudinal ends thereof; the third filter screen (9) is positioned at the fourth air inlet (402); the fourth filter screen is positioned at the fourth air outlet (403).
6. The heat dissipating device of a liquid crystal display as claimed in claim 4, wherein the inner surface of the mounting cover (4) is provided with a wind guide (6); the air guide (6) comprises a mounting plate (61) and fins (62); the mounting plate (61) is provided with a vent hole (611); the length direction of the fins (62) is parallel to the blowing direction of the fan (5), the fins (62) are arranged on the surface of one side, far away from the Venturi tube (3), of the mounting plate (61), and the fins (62) are arranged side by side in the vertical direction.
7. The heat dissipating device of a liquid crystal display as claimed in claim 6, wherein the air guide (6) is provided in two in a lateral direction symmetrically with respect to the fan (5); the fin (62) is provided with a chamfer at one end of the vent hole (611).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667041.0U CN210428014U (en) | 2019-09-30 | 2019-09-30 | Heat radiator for LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921667041.0U CN210428014U (en) | 2019-09-30 | 2019-09-30 | Heat radiator for LCD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210428014U true CN210428014U (en) | 2020-04-28 |
Family
ID=70368633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921667041.0U Expired - Fee Related CN210428014U (en) | 2019-09-30 | 2019-09-30 | Heat radiator for LCD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210428014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112165833A (en) * | 2020-09-30 | 2021-01-01 | 厦门天马微电子有限公司 | Heat dissipation system and display device |
-
2019
- 2019-09-30 CN CN201921667041.0U patent/CN210428014U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112165833A (en) * | 2020-09-30 | 2021-01-01 | 厦门天马微电子有限公司 | Heat dissipation system and display device |
| CN112165833B (en) * | 2020-09-30 | 2022-08-30 | 厦门天马微电子有限公司 | Heat dissipation system and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |