CN114296275B - Backlight heat dissipation structure of liquid crystal display - Google Patents
Backlight heat dissipation structure of liquid crystal display Download PDFInfo
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- CN114296275B CN114296275B CN202210191912.6A CN202210191912A CN114296275B CN 114296275 B CN114296275 B CN 114296275B CN 202210191912 A CN202210191912 A CN 202210191912A CN 114296275 B CN114296275 B CN 114296275B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention relates to the technical field of display screen accessories, in particular to a liquid crystal display screen backlight source heat dissipation structure, which comprises a display screen shell and a backlight source, wherein the backlight source is vertically arranged on one side in the display screen shell, a fixed groove plate is buckled on the outer wall of the backlight source, the fixed groove plate is far away from the light emitting surface of the backlight source, a plurality of Tesla valve grooves are formed in the inner side wall of the fixed groove plate, and the Tesla valve grooves face upwards; the heat generated by the backlight source is accelerated to rise, so that the heat dissipation speed of the backlight source can be improved, and meanwhile, the heat volatilization amount can be improved and the heat dissipation effect can be improved by adopting the volatilized fluid to absorb and transfer the heat.
Description
Technical Field
The invention relates to the technical field of display screen accessories, in particular to a backlight source heat dissipation structure of a liquid crystal display screen.
Background
As is well known, a backlight source of a liquid crystal display is a main light source of the liquid crystal display, light emitted by the backlight source can be irradiated on a liquid crystal panel in a plane shape through structures such as a light guide plate, a light diffusion plate and the like, and then the liquid crystal panel is subjected to liquid crystal electronic control through a control circuit board, so that display of images of the display is realized.
The shape of backlight is generally columnar, and it produces a large amount of heat easily when the circular telegram is used, and for the convenience makes the population volatilize and guarantees that the display screen can be at normal temperature operation, need carry out the heat dissipation to the backlight and handle, traditional heat dissipation mode is static heat dissipation through the louvre, however when adopting this kind of heat dissipation mode, the heat naturally volatilizes, and its volatilization rate is slower, and the radiating effect is relatively poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides a backlight heat dissipation structure of a liquid crystal display.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the liquid crystal display backlight radiating structure comprises a display screen shell and a backlight, wherein the backlight is vertically arranged on one side in the display screen shell, a fixed groove plate is buckled on the outer wall of the backlight, the fixed groove plate is far away from the backlight luminous surface, a plurality of Tesla valve grooves are formed in the inner side wall of the fixed groove plate, and the Tesla valve grooves face upwards;
and the valve further comprises a circulation structure, wherein the circulation structure is used for circulating the volatile fluid in the Tesla valve groove.
Further, the circulation structure comprises two support plates arranged on the outer wall of the fixed groove plate, the outer side of the fixed groove plate is buckled with a heat insulation plate, the outer wall of the fixed groove plate is provided with a plurality of first through holes, and the first through holes are communicated with the inside of the Tesla valve groove;
the utility model discloses a display screen shell internally mounted has first baffle, the top of backlight with first baffle is connected, and two backup pads, heat insulating board, display screen shell and first baffle make up into the storage chamber, first through-hole and the inside intercommunication of storage chamber, first baffle upside is provided with the second baffle, the second baffle will first baffle upside space is cut apart into upside heat dissipation chamber and downside backward flow chamber, upside heat dissipation intracavity is provided with heat conduction structure, tesla valve groove top intercommunication is provided with the air duct, air duct and upside heat dissipation chamber intercommunication, a plurality of second openings have been seted up on the second baffle, the second opening with the air duct is kept away from, upside heat dissipation chamber and downside backward flow chamber pass through the second through-hole intercommunication, the third through-hole has been seted up on the first baffle, the third through-hole with the air duct is close, downside backward flow chamber and storage chamber pass through the third through-hole intercommunication.
Further, the device also comprises a sealing plate, wherein the sealing plate is positioned in the storage cavity, the sealing plate is arranged on the supporting plate at one side of the fixed groove plate, a flow guide pipe is arranged on the end face wall of the sealing plate in a contact manner, a spring is sleeved on the outer wall of the flow guide pipe, one end of the spring is arranged on the sealing plate, and the other end of the spring is arranged on the outer wall of the flow guide pipe;
the hidden groove is formed in the outer wall of the display screen shell, the outer end of the flow guide pipe penetrates through the display screen shell and stretches into the hidden groove, the flow guide pipe is in sliding connection with the display screen shell, a square pipe is arranged in the hidden groove, an opening of the square pipe faces upwards, the outer end of the flow guide pipe is installed on the lower side of the square pipe, and the flow guide pipe is communicated with the square pipe.
Further, a groove is formed in the outer wall of the square pipe.
Further, the movable plate is slidably positioned in the upper side heat dissipation cavity, and a notch is formed in the back wall of the upper side heat dissipation cavity.
Further, a flange is arranged at the notch of the upper radiating cavity.
Further, the heat conduction structure comprises a plurality of heat exchange air guide pipes arranged in the upper side heat dissipation cavity, the front sides of the heat exchange air guide pipes incline, the front side openings of the heat exchange air guide pipes are communicated with the top of the display screen shell, the rear sides of the heat exchange air guide pipes are horizontal, and the rear sides of the heat exchange air guide pipes penetrate through the movable plate and are connected in a sliding mode;
and a plurality of heat exchange plates are arranged at the bottom of the heat exchange air guide pipe.
Further, an observation glass is inlaid on the outer wall of the display screen shell.
Compared with the prior art, the invention has the beneficial effects that: the purposes of heat absorption and heat conduction are achieved through the form conversion of the volatilized fluid, and the heat dissipation speed and the heat dissipation effect can be improved through guiding and accelerating the gas rising of the vaporized fluid by adopting the Tesla valve groove.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the front cross-sectional configuration of the interior of the display screen housing of FIG. 1;
FIG. 3 is a schematic top cross-sectional view of the display screen housing of FIG. 1;
FIG. 4 is a schematic diagram of the right side cross-sectional structure of the display screen housing of FIG. 1;
FIG. 5 is a schematic view of a vertical enlarged structure of the fixed trough plate in FIG. 3;
FIG. 6 is a schematic view of a partial enlarged structure at A in FIG. 2;
FIG. 7 is a schematic view of a partially enlarged structure at B in FIG. 3;
FIG. 8 is a schematic view of a partially enlarged structure at C in FIG. 4;
the reference numerals in the drawings: 1. a display screen housing; 2. a backlight; 3. fixing the groove plate; 4. tesla valve spool; 5. a support plate; 6. a heat insulating plate; 7. a first port; 8. a first separator; 9. a second separator; 10. an air duct; 11. a second port; 12. a third port; 13. a sealing plate; 14. a flow guiding pipe; 15. a spring; 16. square tube; 17. digging a groove; 18. a movable plate; 19. a flange; 20. a heat exchange air guide pipe; 21. a heat exchange plate; 22. the glass was observed.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be noted that the directions or positional relationships indicated as being "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, or may be internal communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. This example was written in a progressive manner.
As shown in fig. 1 to 8, the backlight source heat dissipation structure of a liquid crystal display screen of the present invention comprises a display screen housing 1 and a backlight source 2, wherein the backlight source 2 is vertically installed at one side in the display screen housing 1, a fixed slot plate 3 is buckled on the outer wall of the backlight source 2, the fixed slot plate 3 is far away from the light emitting surface of the backlight source 2, a plurality of tesla valve slots 4 are arranged on the inner side wall of the fixed slot plate 3, and the direction of the tesla valve slots 4 is upward;
and also includes a circulation structure for circulating the volatile fluid in the tesla valve spool 4.
In this embodiment, heat generated during operation of the backlight source 2 enters the tesla valve groove 4 and heats volatile fluid in the tesla valve groove, so that liquid fluid absorbs heat and volatilizes to be in a gaseous state, gas flows upwards when heated, meanwhile, the tesla valve groove 4 can conveniently generate upward thrust to the gas through an inner structure of the tesla valve groove 4, so that the gas is accelerated to rise, and the heat discharge speed is improved, thereby improving the heat dissipation effect of the backlight source 2, improving the heat dissipation speed of the backlight source 2 through accelerating the rising of heat generated by the backlight source 2, and simultaneously improving the heat volatilization quantity and the heat dissipation effect by adopting the volatile fluid for heat absorption and transfer.
As a preferable mode of the above embodiment, the circulation structure includes two support plates 5 mounted on the outer wall of the fixed slot plate 3, the outer side of the fixed slot plate 3 is buckled with a heat insulation plate 6, the outer wall of the fixed slot plate 3 is provided with a plurality of first through openings 7, and the first through openings 7 are communicated with the inside of the tesla valve groove 4;
the display screen shell 1 internally mounted has first baffle 8, the top of backlight 2 with first baffle 8 is connected, and two backup pads 5, heat insulating board 6, display screen shell 1 and first baffle 8 make up into the storage chamber, first through-hole 7 communicates with the storage chamber inside, first baffle 8 upside is provided with second baffle 9, second baffle 9 will first baffle 8 upside space is cut apart into upside heat dissipation chamber and downside backward flow chamber, and upside heat dissipation intracavity is provided with heat conduction structure, and Tesla valve groove 4 top intercommunication is provided with air duct 10, air duct 10 and upside heat dissipation chamber intercommunication, a plurality of second through-holes 11 have been seted up on the second baffle 9, second through-hole 11 with air duct 10 keeps away from, upside heat dissipation chamber and downside backward flow chamber pass through second through-hole 11 intercommunication, offer third through-hole 12 on the first baffle 8, third through-hole 12 with air duct 10 is close, downside backward flow chamber passes through third through-hole 12 intercommunication.
In this embodiment, volatile fluid is stored in a storage cavity formed by the support plate 5, the heat insulation plate 6, the first partition plate 8 and the display screen shell 1, the volatile fluid enters the tesla valve groove 4 through the first port 7, the volatile fluid in the tesla valve groove 4 absorbs heat of the backlight source 2 to vaporize, high-temperature gas rises in the tesla valve groove 4, meanwhile, the tesla valve groove 4 accelerates the rising speed of the gas, the high-temperature gas enters the upper side heat dissipation cavity through the air duct 10 to transversely move, the heat conduction structure conducts heat to the temperature in the gas, so that the temperature of the gas is reduced and returns to a liquid state, and the liquid in the upper side heat dissipation cavity enters the lower side backflow cavity through the second port 11 and flows back into the storage cavity through the third port 12, so that recycling of the volatile fluid is realized.
In this embodiment, by adopting the structures of the upper heat dissipation cavity and the lower reflow cavity, the contact time between the high-temperature gas and the heat conduction structure can be prolonged, and the heat dissipation effect can be improved.
As a preference of the above embodiment, the device further comprises a sealing plate 13, wherein the sealing plate 13 is positioned in the storage cavity, the sealing plate 13 is mounted on the support plate 5 at one side of the fixed slot plate 3, a flow guide pipe 14 is arranged on the end face wall of the sealing plate 13 in a contact manner, a spring 15 is sleeved on the outer wall of the flow guide pipe 14, one end of the spring 15 is mounted on the sealing plate 13, and the other end of the spring 15 is mounted on the outer wall of the flow guide pipe 14;
the hidden groove is formed in the outer wall of the display screen shell 1, the outer end of the flow guide pipe 14 penetrates through the display screen shell 1 and stretches into the hidden groove, the flow guide pipe 14 is in sliding connection with the display screen shell 1, a square pipe 16 is arranged in the hidden groove, an opening of the square pipe 16 faces upwards, the outer end of the flow guide pipe 14 is installed on the lower side of the square pipe 16, and the flow guide pipe 14 is communicated with the square pipe 16.
In this embodiment, the spring 15 pulls the honeycomb duct 14 to be close to the shrouding 13, the shrouding 13 seals the opening of honeycomb duct 14, hide the groove and hide square tube 16, remove square tube 16 to hide the outside in groove, square tube 16 drives honeycomb duct 14 and shrouding 13 separation this moment, can pour volatilized fluid into the storage chamber through square tube 16 open-top, thereby conveniently add volatilized fluid in the display screen shell 1, rotate square tube 16, make the opening of square tube 16 down, volatilized fluid accessible honeycomb duct 14 and square tube 16 in the storage chamber are discharged, rotate square tube 16 to initial position, spring 15 pulls square tube 16 through honeycomb duct 14 and moves to hiding the inslot again.
As a preferable example of the above embodiment, the outer wall of the square tube 16 is provided with a groove 17.
In the embodiment, the square tube 16 can be conveniently pulled to move by forming the digging groove 17, so that the operation is convenient.
Preferably, the above embodiment further includes a movable plate 18, where the movable plate 18 is slidably located in the upper heat dissipation cavity, and a notch is formed on a back wall of the upper heat dissipation cavity.
In this embodiment, when high-temperature gas enters the upper side heat dissipation cavity, other components in the upper side heat dissipation cavity change, and the gas pushes the movable plate 18 to slide, so that constant pressure stable treatment on the air pressure in the upper side heat dissipation cavity is realized, the air pressure in the upper side heat dissipation cavity and the external air pressure are conveniently kept constant, and the pressure difference is avoided being too large and damage to the display screen shell 1 is avoided.
Preferably, the notch position of the upper heat dissipation cavity is provided with a flange 19.
In this embodiment, the stop 19 is provided to limit the moving position of the movable plate 18.
As a preference of the above embodiment, the heat conducting structure includes a plurality of heat exchanging air guide pipes 20 installed in the upper heat dissipating cavity, the front sides of the heat exchanging air guide pipes 20 are inclined, and the front side openings of the heat exchanging air guide pipes 20 are communicated with the top of the display screen housing 1, the rear sides of the heat exchanging air guide pipes 20 are horizontal, and the rear sides of the heat exchanging air guide pipes 20 pass through the movable plate 18 and are slidingly connected;
a plurality of heat exchange plates 21 are arranged at the bottom of the heat exchange air guide pipe 20.
In this embodiment, the high temperature gas in the upper heat dissipation cavity transfers heat to the air in the heat exchange air guide pipe 20 through the heat exchange air guide pipe 20 and the heat exchange plate 21, so as to heat the air in the heat exchange air guide pipe 20, and as the front side of the heat exchange air guide pipe 20 is inclined, the heated gas flows upwards along the inner wall of the heat exchange air guide pipe 20, the opening at the rear side of the heat exchange air guide pipe 20 sucks in the external air, thereby realizing continuous heat transfer and dissipation work of heat, and the temperature of the gas in the upper heat dissipation cavity is reduced and condensed into liquid.
Preferably, the outer wall of the display screen casing 1 is embedded with a viewing glass 22.
In this embodiment, by providing the observation glass 22, the real-time detection of the storage amount of the volatile fluid in the storage chamber can be facilitated.
The installation mode, the connection mode or the setting mode of the backlight source heat dissipation structure of the liquid crystal display screen are common mechanical modes, and can be implemented as long as the beneficial effects of the backlight source heat dissipation structure can be achieved; the backlight 2 may be purchased in the marketplace.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (6)
1. The utility model provides a liquid crystal display backlight heat radiation structure, its characterized in that includes display screen shell (1) and backlight (2), one side in display screen shell (1) is installed vertically to backlight (2), the knot is equipped with fixed frid (3) on the outer wall of backlight (2), fixed frid (3) keep away from backlight (2) light emitting surface, a plurality of tesla valve grooves (4) have been seted up on fixed frid (3) inside wall, the direction of tesla valve groove (4) up;
the device also comprises a circulation structure, wherein the circulation structure is used for circulating volatile fluid in the Tesla valve groove (4);
the circulation structure comprises two support plates (5) arranged on the outer wall of a fixed groove plate (3), a heat insulation plate (6) is buckled on the outer side of the fixed groove plate (3), a plurality of first through holes (7) are formed in the outer wall of the fixed groove plate (3), and the first through holes (7) are communicated with the inside of the Tesla valve groove (4);
the display screen shell (1) is internally provided with a first partition plate (8), the top of the backlight source (2) is connected with the first partition plate (8), two support plates (5), a heat insulation plate (6), the display screen shell (1) and the first partition plate (8) are combined into a storage cavity, a first through hole (7) is communicated with the inside of the storage cavity, the upper side of the first partition plate (8) is provided with a second partition plate (9), the upper side space of the first partition plate (8) is divided into an upper side heat dissipation cavity and a lower side reflux cavity by the second partition plate (9), a heat conduction structure is arranged in the upper side heat dissipation cavity, the top of a Tesla valve groove (4) is communicated with an air duct (10), the air duct (10) is communicated with the upper side heat dissipation cavity, a plurality of second through holes (11) are formed in the second partition plate (9), the upper side heat dissipation cavity and the lower side reflux cavity are communicated with the air duct (10) through the second through holes (11), and the first partition plate (8) is communicated with the three-way through the third through holes (12);
the utility model also comprises a sealing plate (13), wherein the sealing plate (13) is positioned in the storage cavity, the sealing plate (13) is arranged on the supporting plate (5) at one side of the fixed groove plate (3), the end surface wall of the sealing plate (13) is provided with a flow guide pipe (14) in a contact way, the outer wall of the flow guide pipe (14) is sleeved with a spring (15), one end of the spring (15) is arranged on the sealing plate (13), the other end of the spring (15) is arranged on the outer wall of the flow guide pipe (14), the flow guide pipe (14) is pulled by the spring (15) to be tightly attached to the sealing plate (13), and the sealing plate (13) seals the opening of the flow guide pipe (14);
a hidden groove is formed in the outer wall of the display screen shell (1), the outer end of the flow guide pipe (14) penetrates through the display screen shell (1) and stretches into the hidden groove, the flow guide pipe (14) is in sliding connection with the display screen shell (1), a square pipe (16) is arranged in the hidden groove, an opening of the square pipe (16) faces upwards, the outer end of the flow guide pipe (14) is mounted on the lower side of the square pipe (16), and the flow guide pipe (14) is communicated with the square pipe (16);
when moving square tube (16) to hiding the outside in groove, square tube (16) drive honeycomb duct (14) and shrouding (13) separation this moment, can pour volatilized fluid into the storage intracavity through square tube (16) open-top to conveniently add volatilized fluid in display screen shell (1), rotate square tube (16), make the opening of square tube (16) down, volatilized fluid in the storage intracavity accessible honeycomb duct (14) and square tube (16) discharge, thereby realize the filling of fluid in the storage chamber, discharge work.
2. The backlight heat dissipation structure of a liquid crystal display according to claim 1, wherein a groove (17) is formed on the outer wall of the square tube (16).
3. The backlight heat dissipation structure as set forth in claim 2 further comprising a movable plate (18), wherein the movable plate (18) is slidably disposed in the upper heat dissipation cavity, and a notch is formed in a back wall of the upper heat dissipation cavity.
4. A backlight heat dissipation structure for a liquid crystal display according to claim 3, wherein a flange (19) is disposed at a notch of the upper heat dissipation cavity.
5. A backlight heat dissipation structure for a liquid crystal display according to claim 4, wherein the heat conduction structure comprises a plurality of heat exchange air guide pipes (20) installed in an upper heat dissipation cavity, the front sides of the heat exchange air guide pipes (20) are inclined, and the front side openings of the heat exchange air guide pipes (20) are communicated with the top of the display housing (1), the rear sides of the heat exchange air guide pipes (20) are horizontal, and the rear sides of the heat exchange air guide pipes (20) penetrate through the movable plate (18) and are connected in a sliding manner;
a plurality of heat exchange plates (21) are arranged at the bottom of the heat exchange air guide pipe (20).
6. The backlight heat dissipation structure as defined in claim 5, wherein an observation glass (22) is inlaid on the outer wall of the display screen housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210191912.6A CN114296275B (en) | 2022-03-01 | 2022-03-01 | Backlight heat dissipation structure of liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210191912.6A CN114296275B (en) | 2022-03-01 | 2022-03-01 | Backlight heat dissipation structure of liquid crystal display |
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| CN114296275A CN114296275A (en) | 2022-04-08 |
| CN114296275B true CN114296275B (en) | 2023-06-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115576135B (en) * | 2022-10-28 | 2024-05-10 | 深圳市德智欣科技有限公司 | TFT liquid crystal display module with heat radiation structure |
| CN115933249B (en) * | 2022-11-29 | 2024-08-02 | 深圳市德智欣科技有限公司 | TFT liquid crystal display module with safeguard function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4969376B2 (en) * | 2007-09-11 | 2012-07-04 | 株式会社日立製作所 | Liquid crystal display equipment |
| CN203950515U (en) * | 2014-06-10 | 2014-11-19 | 好威电子(深圳)有限公司 | A kind of LCDs with cyclic cooling structure |
| CN206573821U (en) * | 2017-03-14 | 2017-10-20 | 北京京东方光电科技有限公司 | Display module and backlight module |
| CN207037304U (en) * | 2017-08-22 | 2018-02-23 | 深圳创维－Rgb电子有限公司 | Radiator structure, backlight module and display device |
| CN207833167U (en) * | 2018-02-08 | 2018-09-07 | 深圳创维－Rgb电子有限公司 | A kind of radiator structure, backlight module and liquid crystal module |
| TWI663375B (en) * | 2018-07-05 | 2019-06-21 | 宏碁股份有限公司 | Heat dissipation module |
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