High-temperature-resistant high-brightness backlight source device

Abstract

The utility model relates to the technical field of backlight sources, and discloses a high-temperature-resistant and high-brightness backlight source device which comprises a top cover and further comprises a shell arranged at the bottom of a bottom cover, and a ventilation mechanism is arranged in the bottom cover; the clamping groove is formed in the outer side of the bottom cover and used for clamping and fixing the main body, a plurality of connecting holes are formed in the outer side of the bottom cover, and a ventilation opening is formed in the outer side of the shell; the main body can be conveniently ventilated by arranging the ventilation mechanism, and the shell can be conveniently cooled by arranging the clamping groove, the connecting hole, the ventilation opening, the placing plate and the fan, so that the backlight source element can be conveniently cooled, the phenomenon that internal parts of the backlight source are accelerated to age at a high temperature for a long time, and a high-temperature environment cannot be met is prevented, and the service life of the backlight source is prolonged. The reflecting plate and the diffusion plate are matched for use, so that the light source can be conveniently reflected and diffused, and the luminous efficiency of the backlight source is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of backlights, and particularly relates to a high-temperature resistant and high-brightness backlight device. Background Technique

[0002] A backlight is a light source located behind a liquid crystal display. Existing liquid crystal displays mainly include a liquid crystal display panel and a backlight. Since the liquid crystal display panel itself does not emit light, it is necessary to rely on the backlight inside the liquid crystal display to provide light for it. In the design of the backlight, the selection of the light source used is very important. The light source used determines the optoelectronic parameters such as the power consumption, brightness, and color of the backlight, and also determines its usage conditions and service life and other characteristics. The most core technology in the backlight module is the optical technology of the light guide plate, and there are mainly two forms of light guide plates: printing type and injection molding type.

[0003] As an important part of a display device, the performance of the backlight has an important impact on the image quality of the entire display device. In order to improve the luminous efficiency of the backlight and make the performance of the backlight more stable and reliable in a high-temperature environment, therefore, it is necessary to design a high-temperature resistant and high-brightness backlight device. The existing backlight will generate a large amount of heat on its surface after long-term use, and there is no heat dissipation device on the surface of the traditional backlight, resulting in the phenomenon that the internal parts of the backlight accelerate aging under high temperature for a long time, making it difficult to meet the high-temperature environment. Moreover, the existing high-temperature resistant and high-brightness backlight devices usually use silicon carbide as the backlight. Although silicon carbide has good high-temperature resistance and high thermal conductivity, it will lead to a reduction in luminous efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a high-temperature resistant and high-brightness backlight device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A high-temperature resistant and high-brightness backlight device, including a top cover, further including:

[0006] A housing provided at the bottom of the bottom cover, and a ventilation mechanism is provided inside the bottom cover;

[0007] A card slot opened on the outer side of the bottom cover for clamping and fixing the main body. A plurality of connection holes are opened on the outer side of the bottom cover, ventilation openings are opened on the outer side of the housing, a horizontally arranged placement plate is fixed to the inner wall of the housing, and a plurality of fans for dissipating heat from the main body are arranged on the top of the placement plate.

[0008] Preferably, the ventilation mechanism includes first heat dissipation holes opened on the inner wall of the bottom cover, a rubber strip longitudinally installed on the inner wall of the bottom cover, a partition plate provided on the top of the rubber strip, and a plurality of second heat dissipation holes opened on the inner wall of the partition plate.

[0009] Preferably, a reflecting plate for reflecting the light source is slidably connected to the inner wall of the bottom cover. A fixing plate is longitudinally installed at the top of the reflecting plate, and a lamp tube is horizontally installed on one side of the fixing plate.

[0010] Preferably, a diffusing plate for diffusing the light source is arranged at the top of the fixing plate, and a diffusing lower film is arranged at the top of the diffusing plate.

[0011] Preferably, a diffusing upper film is arranged at the top of the diffusing lower film, and a plastic frame is arranged at the top of the diffusing upper film.

[0012] Preferably, a liquid crystal screen is arranged at the top of the plastic frame, and a top cover for fixing the main body is arranged at the top of the liquid crystal screen.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By arranging a ventilation mechanism, the present utility model can facilitate the ventilation of the main body. By arranging a card slot, a connection hole, a ventilation port, a placement plate and a fan, the heat dissipation of the outer shell can be facilitated, so as to facilitate the heat dissipation of the backlight element, prevent the phenomenon that the internal parts are accelerated in aging due to the long-term high temperature of the backlight, and it is difficult to meet the high-temperature environment. By arranging the reflecting plate and the diffusing plate to be used in cooperation, the reflection and diffusion of the light source can be facilitated, thereby improving the light-emitting efficiency of the backlight. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of the high-temperature resistant and high-brightness backlight device provided by the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the reflecting plate provided by the present utility model;

[0017] Figure 3 It is a schematic structural diagram of the diffusing plate provided by the present utility model;

[0018] Figure 4 It is a schematic structural diagram of the ventilation mechanism provided by the present utility model.

[0019] In the figure: 1. Bottom cover; 2. Outer shell; 3. Ventilation mechanism; 31. First heat dissipation hole; 32. Rubber strip; 33. Partition board; 34. Second heat dissipation hole; 4. Card slot; 5. Connection hole; 6. Ventilation port; 7. Placement plate; 8. Fan; 9. Reflecting plate; 10. Fixing plate; 11. Lamp tube; 12. Diffusing plate; 13. Diffusing lower film; 14. Diffusing upper film; 15. Plastic frame; 16. Liquid crystal screen; 17. Top cover. Detailed Embodiment

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 As shown, a high-temperature resistant and high-brightness backlight device includes a bottom cover 1. By setting the bottom cover 1, it is convenient to support the outer shell 2 and at the same time convenient to support the electrical components of the backlight. The bottom of the bottom cover 1 is provided with an outer shell 2. By setting the outer shell 2, it is convenient to protect the ventilation mechanism 3 and the fan 8. The ventilation mechanism 3 is arranged inside the bottom cover 1. By setting the ventilation mechanism 3, it is convenient to ventilate the main body and at the same time convenient to insulate the main body; a card slot 4 is opened on the outer side of the bottom cover 1 for clamping and fixing the main body. By setting the card slot 4, it is convenient to clamp and fix the bottom cover 1 and the top cover 17. A plurality of connection holes 5 are opened on the outer side of the bottom cover 1. By setting the connection holes 5, it is convenient to connect the bottom cover 1 and the top cover 17. Ventilation openings 6 are opened on the outer side of the outer shell 2. By setting the ventilation openings 6, it is convenient to dissipate heat inside the outer shell 2, thereby facilitating the improvement of the heat dissipation efficiency of the main body. A horizontally arranged placement plate 7 is fixed to the inner wall of the outer shell 2. By setting the placement plate 7, it is convenient to support the fan 8. A plurality of fans 8 for dissipating heat from the main body are arranged on the top of the placement plate 7. By setting the fans 8, it is convenient to blow air on the bottom cover 1, thereby facilitating the dissipation of heat from the main body.

[0022] Refer to Figure 4 As shown, the ventilation mechanism 3 includes a first heat dissipation hole 31 opened on the inner wall of the bottom cover 1. By setting the first heat dissipation hole 31, it is convenient to dissipate heat from the bottom cover 1, thereby facilitating the dissipation of heat from the backlight components. A longitudinally installed rubber strip 32 is arranged on the inner wall of the bottom cover 1. By setting the rubber strip 32, it is convenient to support the partition plate 33 and at the same time convenient to seal the connection between the partition plate 33 and the bottom cover 1. The partition plate 33 is arranged on the top of the rubber strip 32. By setting the partition plate 33, it is convenient to separate the internal space of the bottom cover 1. A plurality of second heat dissipation holes 34 are opened on the inner wall of the partition plate 33. By setting the second heat dissipation holes 34, it is convenient to dissipate heat from the backlight components.

[0023] Refer to Figure 2 and Figure 3As shown, a reflecting plate 9 for reflecting the light source is slidably connected to the inner wall of the bottom cover 1. By providing the reflecting plate 9, it is convenient to improve the luminous efficiency of the backlight source. A fixing plate 10 installed longitudinally is provided at the top of the reflecting plate 9. By providing the fixing plate 10, it is convenient to fix the lamp tube 11. A lamp tube 11 installed horizontally is provided on one side of the fixing plate 10. By providing the lamp tube 11, it is convenient to emit light to the liquid crystal screen 16. A diffusion plate 12 for diffusing the light source is provided at the top of the fixing plate 10. By providing the diffusion plate 12, it is convenient to diffuse the light source, thereby improving the luminous efficiency of the backlight source. A diffusion lower film 13 is provided at the top of the diffusion plate 12. By providing the diffusion lower film 13, it is convenient to protect the diffusion plate 12 and at the same time convenient to diffuse the light source.

[0024] Reference Figure 3 As shown, a diffusion upper film 14 is provided at the top of the diffusion lower film 13. By providing the diffusion upper film 14, it is convenient to protect the diffusion plate 12 and at the same time convenient to diffuse the light source. A plastic frame 15 is provided at the top of the diffusion upper film 14. By providing the plastic frame 15, it is convenient to limit the diffusion plate 12, the diffusion lower film 13 and the diffusion upper film 14. A liquid crystal screen 16 is provided at the top of the plastic frame 15. By providing the liquid crystal screen 16, it is convenient to display the light source, thereby detecting the luminous efficiency and luminous quality of the backlight source. A top cover 17 for fixing the main body is provided at the top of the liquid crystal screen 16. By providing the top cover 17, it is convenient to fix the backlight source components.

[0025] Working principle: When in use, first assemble the backlight source components in sequence, and then use the first heat dissipation hole 31, the rubber strip 32, the partition 33 and the second heat dissipation hole 34 in cooperation to ventilate the backlight source components, and at the same time keep the inside of the backlight source components dry. By providing the card slot 4, the connection hole 5, the ventilation port 6, the placement plate 7 and the fan 8 in cooperation, blow air to the bottom cover 1 from inside the housing 2, thereby facilitating the heat dissipation of the backlight source components and preventing the phenomenon that the internal parts of the backlight source are accelerated in aging under high temperature for a long time. The liquid crystal screen 16 is illuminated by the lamp tube 11, the light source is reflected by the reflecting plate 9, and the light source is diffused by the diffusion plate 12, the diffusion lower film 13 and the diffusion upper film 14 in cooperation, thereby improving the luminous efficiency of the backlight source.

[0026] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant high-brightness backlight device, comprising a bottom cover (1), characterized in that: Also includes: A shell (2) is arranged at the bottom of the bottom cover (1), and a ventilation mechanism (3) is arranged inside the bottom cover (1); A card slot (4) is provided on the outside of the bottom cover (1) for clamping and fixing the main body, a plurality of connection holes (5) are provided on the outside of the bottom cover (1), a vent (6) is provided on the outside of the outer shell (2), a transversely arranged placement plate (7) is fixed to the inner wall of the outer shell (2), and a plurality of fans (8) for dissipating heat from the main body are provided on the top of the placement plate (7).

2. A high temperature resistant high brightness backlight device according to claim 1, characterized in that: The ventilation mechanism (3) comprises a first heat dissipation hole (31) formed on the inner wall of the bottom cover (1); the inner wall of the bottom cover (1) is provided with a longitudinally mounted rubber strip (32); a partition (33) is provided on the top of the rubber strip (32); and a plurality of second heat dissipation holes (34) are formed on the inner wall of the partition (33).

3. The high temperature resistant high brightness backlight device according to claim 1, characterized in that: A reflecting plate (9) for reflecting the light source is slidably connected to the inner wall of the bottom cover (1), a longitudinally mounted fixing plate (10) is arranged on the top of the reflecting plate (9), and a transversely mounted lamp tube (11) is arranged on one side of the fixing plate (10).

4. The high temperature resistant high brightness backlight device according to claim 3, characterized in that: A diffusion plate (12) for diffusing the light source is arranged on the top of the fixing plate (10), and a diffusion lower film (13) is arranged on the top of the diffusion plate (12).

5. The high temperature resistant high brightness backlight device according to claim 4, characterized in that: A diffusion upper film (14) is arranged on the top of the diffusion lower film (13), and a plastic frame (15) is arranged on the top of the diffusion upper film (14).

6. The high temperature resistant high brightness backlight device according to claim 5, characterized in that: A liquid crystal screen (16) is arranged on the top of the plastic frame (15), and a top cover (17) for fixing the main body is arranged on the top of the liquid crystal screen (16).

Images