CN216526645U

CN216526645U - Thinned liquid crystal display backlight module with U-shaped light guide plate

Info

Publication number: CN216526645U
Application number: CN202123441765.3U
Authority: CN
Inventors: 郑伟锋
Original assignee: Shenzhen Esen Photoelectric Technology Co ltd
Current assignee: Shenzhen Esen Photoelectric Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-13
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to the technical field of display modules, and discloses a thin liquid crystal display backlight module with a U-shaped light guide plate. According to the thinned liquid crystal display backlight module with the U-shaped light guide plate, the plurality of groups of sliding rods downwards extrude the springs, the connecting block drives the bearings to move downwards, the plurality of groups of fan blades are driven by air to rotate on the bearings, the rotation of the fan blades can discharge air in the case to the outside through the plurality of groups of heat dissipation holes, the air discharges heat in the case to the outside and simultaneously discharges the heat out of the case, then the springs downwards push the sliding rods, the sliding rods drive the fan blades to move upwards, and the fan blades move upwards and can pump the outside air into the case, so that the heat dissipation effect is achieved.

Description

Thinned liquid crystal display backlight module with U-shaped light guide plate

Technical Field

The utility model relates to the technical field of display modules, in particular to a thin liquid crystal display backlight module with a U-shaped light guide plate.

Background

In recent years, LEDs are widely applied to the field of illumination due to their advantages of no pollution, good color rendering, energy saving, and the like, in the application field of display devices such as liquid crystal televisions, notebook computers, and the like, light sources emitted by LED lamps penetrate through the light incident surface of the light guide plate to transmit the light sources to the light guide plate, the light sources convert the traveling direction of the light sources by the dots of the light guide plate to form a surface light source, and the fabrication of LED back plates is a key factor for determining whether products are reliable, whereas in the LED energy-saving backlight modules that are being researched and sold in the industry, the problem of heat dissipation always exists, when LEDs emit light, certain heat is generated and removed by heat conduction scattering, and due to the unreasonable heat dissipation manner, when LEDs work for a long time at high brightness, heat dissipation cannot be forcedly performed, heat dissipation is not timely, and the aging life of LED circuits is reduced. Therefore, we propose a thin liquid crystal display backlight module with a U-shaped light guide plate.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art and provides a thin liquid crystal display backlight module with a U-shaped light guide plate.

In order to achieve the purpose, the utility model adopts the following technical scheme that the thin liquid crystal display backlight module with the U-shaped light guide plate comprises a machine box and a display plate, wherein the display plate is positioned above the interior of the machine box, the top wall surface of the display plate and the top wall surface of the machine box are positioned on the same plane, a plurality of groups of radiating holes are formed in the bottom wall surface of the interior of the machine box, and a radiating device is arranged in the interior of the machine box.

The heat dissipation device comprises a sliding groove, a linkage plate and a supporting column, the sliding groove is arranged at the rear side wall surface inside the machine box and at the middle position of the left side wall and the right side wall, the linkage plate is slidably mounted in the sliding groove, the supporting column is uniformly distributed and mounted on the bottom wall surface inside the machine box, a sliding rod is arranged above each group of supporting columns, a limiting groove is formed in the top wall surface of each supporting column, the limiting groove penetrates through the top wall surface of each supporting column and the inside of each supporting column, the lower side of each sliding rod is slidably connected with the multiple groups of limiting grooves respectively, springs are arranged inside the supporting columns, the top wall surface of each sliding rod is provided with a connecting block, the top wall surface of each connecting block 47 penetrates through the top wall surface of each linkage plate 42, bearings are mounted below the side walls of the connecting blocks in an embedded mode, and fan blades are fixedly mounted on arc-shaped side walls of the bearings.

Preferably, the multiple groups of heat dissipation holes penetrate through the bottom wall face of the machine box and are communicated with the outside, filter screens are arranged inside the multiple groups of heat dissipation holes and are of circular structures, and the multiple groups of filter screens are fixedly connected with the inner walls of the heat dissipation holes.

Preferably, the lower parts of the springs are respectively and fixedly connected with the bottom wall surface inside the supporting column, and the upper parts of the springs are respectively and fixedly connected with the bottom wall surface of the sliding rod.

Preferably, an opening is formed in the middle of the front side wall surface of the case, the opening is a hole with a rectangular structure, the opening penetrates through the front side wall surface of the case and is communicated with the inside of the case, and a handle is arranged in the opening.

Preferably, the handle is a T-shaped structural plate, and the rear side wall surface of the handle is fixedly connected with the middle position of the front side wall surface of the linkage plate.

Preferably, the top wall surface of the linkage plate is also provided with a plurality of groups of heat dissipation holes, and filter screens are also arranged in the heat dissipation holes.

Advantageous effects

The utility model provides a thin liquid crystal display backlight module with a U-shaped light guide plate. The method has the following beneficial effects:

(1) this slim liquid crystal display backlight unit of U type light guide plate, press the handle downwards, the handle removes in the opening, the handle drives linkage board downstream, linkage board drives multiunit connecting block downstream, the connecting block drives the slide bar and passes through the inside removal of restriction groove to the support column, multiunit slide bar extrudees the spring downwards, the connecting block drives when driving the bearing downstream, multiunit flabellum is driven by the air and is rotatory on the bearing, the rotation of flabellum can discharge the inside air of machine box to the external world through the multiunit louvre, the air discharges the heat with the machine box of machine box inside together when external, then the spring promotes the slide bar downwards, the slide bar drives the flabellum rebound, the flabellum rebound can be with external air in the machine box again, reach radiating effect.

(2) According to the thin liquid crystal display backlight module with the U-shaped light guide plate, the filter screens arranged in the multiple groups of radiating holes can prevent dust in the air from entering the interior of the machine box through the radiating holes, and the situation that the dust enters the interior of the machine box to influence the normal work of the display panel is avoided.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic diagram of the position relationship of the linkage plate according to the present invention;

figure 4 is a cross-sectional view of a support post of the present invention.

Illustration of the drawings:

1. a case; 2. a display panel; 31. heat dissipation holes; 32. filtering with a screen; 4. a heat sink; 41. a chute; 42. a linkage plate; 43. a support pillar; 44. a slide bar; 45. defining a slot; 46. a spring; 47. connecting blocks; 48. a bearing; 49. a fan blade; 51. an opening; 55. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-4, a U-shaped light guide plate thin liquid crystal display backlight module comprises a case 1 and a display panel 2, the case 1 is a hollow rectangular structure, the display panel 2 is a rectangular plate structure, the display panel 2 is located above the inside of the case 1, the top wall of the display panel 2 and the top wall of the case 1 are located on the same plane, multiple sets of heat dissipation holes 31 are formed in the bottom wall of the inside of the case 1, the heat dissipation holes 31 are circular holes, the multiple sets of heat dissipation holes 31 all penetrate through the bottom wall of the case 1 and are communicated with the outside, a filter screen 32 is arranged inside the multiple sets of heat dissipation holes 31, the filter screen 32 is a circular structure, the multiple sets of filter screens 32 are all fixedly connected with the inner walls of the heat dissipation holes 31, and a heat dissipation device 4 is arranged inside the case 1.

The heat dissipation device 4 comprises a sliding groove 41, a linkage plate 42 and supporting columns 43, wherein the sliding groove 41 is a groove with a rectangular structure, the sliding groove 41 is respectively arranged at the rear side wall surface and the middle position of the left side wall and the right side wall inside the case 1, the linkage plate 42 is a plate with a rectangular structure, the linkage plate 42 is slidably arranged in the sliding groove 41, the supporting columns 43 are in a hollow cylindrical structure, the supporting columns 43 are multiple groups, the multiple groups of supporting columns 43 are uniformly distributed and arranged on the bottom wall surface inside the case 1, a sliding rod 44 is arranged above each group of supporting columns 43, the sliding rod 44 is a smooth wall surface, the top wall surface of each supporting column 43 is provided with a limiting groove 45, the limiting grooves 45 are holes with smooth wall surfaces, the multiple groups of limiting grooves 45 penetrate through the top wall surface of each supporting column 43 and are communicated with the inside of each supporting column 43, the lower parts of the multiple groups of sliding rods 44 are respectively slidably connected with the multiple groups of limiting grooves 45, springs 46 are arranged inside the multiple groups of supporting columns 43, the below of multiunit spring 46 respectively with the inside bottom wall fixed connection of multiunit support column 43, the top of multiunit spring 46 respectively with the bottom wall fixed connection of multiunit slide bar 44, the top wall of multiunit slide bar 44 all is provided with connecting block 47, connecting block 47 is the cylinder type structure, the bottom wall of multiunit connecting block 47 respectively with the top wall fixed connection of multiunit slide bar 44, the top wall of multiunit connecting block 47 has all run through linkage plate 42, bearing 48 is all inlayed and installed to the lateral wall below of multiunit connecting block 47, bearing 48 is the ring type structure, the inner wall of multiunit bearing 48 respectively with the lateral wall fixed connection of multiunit connecting block 47, equal fixed mounting has flabellum 49 on the arc lateral wall of multiunit bearing 48, flabellum 49 is the board of arc structure.

An opening 51 is formed in the middle of the front side wall surface of the case 1, the opening 51 is a hole with a rectangular structure, the opening 51 penetrates through the front side wall surface of the case 1 to be communicated with the inside of the case 1, a handle 52 is arranged in the opening 51, the handle 52 is a T-shaped structural plate, and the rear side wall surface of the handle 52 is fixedly connected with the middle of the front side wall surface of the linkage plate 42.

The top wall surface of the linkage plate 42 is also provided with a plurality of heat dissipation holes 31, and the heat dissipation holes 31 are also internally provided with filter screens 32.

The working principle of the utility model is as follows:

when the air purifier is used, the handle 52 is pressed downwards, the handle 52 moves in the opening 51, the handle 52 drives the linkage plate 42 to move downwards, the linkage plate 42 drives the plurality of groups of connecting blocks 47 to move downwards, the connecting blocks 47 drive the sliding rods 44 to move towards the inside of the supporting columns 43 through the limiting grooves 45, the plurality of groups of sliding rods 44 downwards extrude the springs 46, the connecting blocks 47 drive the bearings 48 to move downwards, the plurality of groups of fan blades 49 are driven to rotate on the bearings 48 by air, the rotation of the fan blades 49 can discharge the air in the machine box 1 to the outside through the plurality of groups of heat dissipation holes 31, the air discharges the heat in the machine box 1 to the outside and simultaneously discharges the heat in the machine box 1 out of the machine box 1, then, the spring 46 pushes the sliding rod 44 downwards, the sliding rod 44 drives the fan blade 49 to move upwards, the fan blade 49 moves upwards to draw the outside air into the case 1, and the filter screens 32 installed in the plurality of sets of heat dissipation holes 31 can prevent dust in the air from entering the inside of the case 1 through the heat dissipation holes 31.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the utility model is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a thin liquid crystal display backlight unit of U type light guide plate, includes machine box (1) and display panel (2), multiunit louvre (31), its characterized in that have been seted up to the bottom wall of machine box (1) inside: the heat dissipation device (4) is arranged inside the machine box (1), the heat dissipation device (4) comprises a sliding groove (41), a linkage plate (42) and support columns (43), the sliding groove (41) is formed in the middle position of the rear side wall surface and the left and right side walls inside the machine box (1), the linkage plate (42) is slidably mounted in the sliding groove (41), the support columns (43) are mounted inside the machine box (1), and a sliding rod (44) is arranged above each group of support columns (43);

all set up on the top wall of support column (43) and have limited groove (45), the inside of support column (43) all is provided with spring (46), and the top wall of slide bar (44) is provided with connecting block (47), and the top wall of connecting block (47) has all run through the top wall of linkage board (42), and bearing (48) are installed to the lateral wall below of connecting block (47) is inlayed, and equal fixed mounting has flabellum (49) on the arc lateral wall of bearing (48).

2. The thinned liquid crystal display backlight module of claim 1, wherein: the multiple groups of heat dissipation holes (31) penetrate through the bottom wall face of the machine box (1) and are communicated with the outside, filter screens (32) are arranged inside the multiple groups of heat dissipation holes (31), the filter screens (32) are of circular structures, and the multiple groups of filter screens (32) are fixedly connected with the inner walls of the heat dissipation holes (31).

3. The thin liquid crystal display backlight module with the U-shaped light guide plate according to claim 1, wherein: the lower parts of the springs (46) are respectively and fixedly connected with the bottom wall surface inside the supporting columns (43), and the upper parts of the springs (46) are respectively and fixedly connected with the bottom wall surface of the sliding rods (44).

4. The thin liquid crystal display backlight module with the U-shaped light guide plate according to claim 1, wherein: an opening (51) is formed in the middle of the front side wall surface of the case (1), the opening (51) is a hole with a rectangular structure, the opening (51) penetrates through the front side wall surface of the case (1) to be communicated with the inside of the case (1), and a handle (52) is arranged in the opening (51).

5. The thin liquid crystal display backlight module with the U-shaped light guide plate as claimed in claim 4, wherein: the handle (52) is a T-shaped structural plate, and the rear side wall surface of the handle (52) is fixedly connected with the middle position of the front side wall surface of the linkage plate (42).

6. The thin liquid crystal display backlight module with the U-shaped light guide plate according to claim 1, wherein: the top wall surface of the linkage plate (42) is also provided with a plurality of groups of heat dissipation holes (31), and filter screens (32) are also arranged in the heat dissipation holes (31).