Waterproof and dustproof display screen module

Abstract

The invention relates to the technical field of display screens, and discloses a waterproof and dustproof display screen module which comprises a heat absorption device, a waterproof and dustproof device, a metal frame and heat dissipation fins, the heat absorption device is arranged on the lower portion of the metal frame, and the heat dissipation fins are fixedly connected to the bottom of the heat absorption device. A waterproof and dustproof device is bonded between the heat absorption device and the metal frame through waterproof glue, the surface of the metal frame is evenly coated with a hydrophobic layer, a base material of the hydrophobic layer is polymethyl methacrylate or polystyrene, a modification material of the hydrophobic layer is methyltrimethoxysilane or dimethyldichlorosilane, and the surface of the metal frame is coated with a waterproof and dustproof layer. The thickness of the hydrophobic layer ranges from 1 micrometer to 5 micrometers, and the thickness of the heat dissipation fins ranges from 0.2 mm to 0.4 mm. Liquid water can be repelled through the hydrophobic layer on the outer wall of the metal frame, and the display screen is wrapped by the waterproof and dustproof device, so that the waterproof and dustproof level of the display screen module is greatly improved, and the display screen module can work normally even under extreme weather conditions.

Description

Technical Field

[0001] The invention relates to the technical field of display screens, and in particular to a waterproof and dustproof display screen module. Background Art

[0002] With the development of science and technology and the changing needs of society, more and more electronic products are being used in outdoor environments. These devices not only have to withstand the pressure of daily use, but also face the influence of natural conditions such as wind, sand, rain and snow.

[0003] Existing devices often use sealing strips or silicone rings to seal the shell interface to prevent moisture from entering the internal circuit or use breathable membrane materials, which allow air to circulate but block water droplets from penetrating to achieve waterproof purposes. In terms of dust prevention, the method adopted is to increase physical barriers, such as thickening the shell wall or setting up multiple layers of filters.

[0004] However, during long-term use, the sealing strips or silicone rings are prone to aging and lead to sealing failure. The cost of using breathable membrane materials is high, and the filtering effect on fine particles is limited. Dust prevention will lead to problems such as difficult cleaning and maintenance. In addition, existing comprehensive protection measures often ignore the need for heat dissipation, resulting in excessively high operating temperatures of the equipment, which affects its service life. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a waterproof and dustproof display screen module, which solves the problem of waterproof failure caused by aging of waterproof materials and small particles entering the display screen.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a waterproof and dustproof display screen module, comprising: a heat absorbing device, a waterproof and dustproof device, a metal frame and heat dissipation fins, the lower part of the metal frame is provided with a heat absorbing device, the bottom of the heat absorbing device is fixedly connected with heat dissipation fins, the waterproof and dustproof device is bonded between the heat absorbing device and the metal frame by waterproof adhesive, the surface of the metal frame is evenly coated with a hydrophobic layer, the base material of the hydrophobic layer is polymethyl methacrylate or polystyrene, the modifying material is methyltrimethoxysilane or dimethyldichlorosilane, the thickness of the hydrophobic layer is 1-5μm, the thickness of the heat dissipation fins is 0.2-0.4mm, and the spacing between the heat dissipation fins is greater than 12mm.

[0007] Preferably, the waterproof and dustproof device is made of nitrile rubber or fluororubber, and the waterproof and dustproof device is in the shape of a closed-loop strip as a whole.

[0008] Preferably, the waterproof and dustproof device includes an upper sealing plate, the bottom of the upper sealing plate is fixedly connected to the top of the support column, the bottom of the support column is fixedly connected to the top of the lower sealing plate, the upper sealing plate and the lower sealing plate are connected via a side sealing plate, the cross-section of the support column is cylindrical, and the longitudinal cross-section of the support column is V-shaped.

[0009] Preferably, the heat absorption device comprises a copper foil, paraffin is arranged at the bottom of the copper foil, a graphene heat sink is arranged at the bottom of the paraffin, micropores are uniformly arranged inside the graphene heat sink, and the diameter of the micropores is between 100nm-400nm.

[0010] Preferably, a threaded hole is provided at the bottom of the metal frame, and a through threaded hole is provided at a position corresponding to the threaded hole at the bottom of the metal frame. The heat absorber and the metal frame are threadedly connected by bolts, and the bolts pass through the threaded holes of the heat absorber and the metal frame.

[0011] Preferably, the metal frame is a rectangular ring with an open middle portion, and the metal frame is made of aluminum alloy or stainless steel.

[0012] Preferably, a screen cleaning device is provided on the upper portion of the metal frame, and a fin cleaning device is provided on the lower portion of the heat absorption device.

[0013] Preferably, a brush is fixedly connected to the bottom of the screen cleaning device, and connecting plates are fixedly connected to both sides of the screen cleaning device.

[0014] Preferably, a slide groove is provided on the side wall of the heat absorption device, cleaning teeth are provided in the middle of the fin cleaning device, a slider is fixedly connected to the upper part of the fin cleaning device, the slider is slidably connected to the inside of the slide groove, and anti-slip grooves are provided on both sides of the fin cleaning device.

[0015] Preferably, threaded holes are provided on both sides of the fin cleaning device, and through threaded holes are provided at the junction of both sides of the connecting plate and the fin cleaning device. The threaded holes on both sides of the fin cleaning device overlap with the threaded holes on both sides of the screen cleaning device. The fin cleaning device and the screen cleaning device are threadedly connected by bolts, and the bolts pass through the threaded holes of the fin cleaning device and the screen cleaning device.

[0016] The present invention provides a waterproof and dustproof display screen module. It has the following beneficial effects: 1. The present invention can repel liquid water through the hydrophobic layer on the outer wall of the metal frame, and can wrap the display screen through the upper sealing sheet, the lower sealing sheet and the side sealing sheet in the waterproof and dustproof device, thereby preventing external water and dust from entering in all directions, thereby greatly improving the waterproof and dustproof level of the display screen module, and can work normally even under extreme climatic conditions.

[0017] 2. The present invention transfers the heat from the display screen to the inside of the paraffin through the copper foil, which causes the paraffin to melt and quickly absorb heat, thereby conducting the heat to the inside of the graphene heat sink. The heat is then transferred to the surface of the heat sink fins through the graphene heat sink with nanopores and finally dissipated into the air, thereby effectively alleviating the heat dissipation bottleneck problem existing in traditional designs.

[0018] 3. The present invention allows the metal frame and the heat absorber to be assembled by bolts through threaded blocks opened on the outer edges of the metal frame and the heat absorber, thereby effectively integrating various structures together, making the structure compact, easy to install and maintain, greatly reducing the subsequent operating costs and enhancing market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a side view schematic diagram of the present invention; Figure 3 It is a plan view schematic diagram of the present invention; Figure 4 It is a front view schematic diagram of the present invention; Figure 5 It is a partial schematic diagram of the waterproof and dustproof device of the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the waterproof and dustproof device of the present invention; Figure 7 It is a schematic diagram of the structural installation of the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the heat absorption device of the present invention; Fig. 9 It is a partial schematic diagram of the chute of the present invention; Fig.10 A three-dimensional diagram of the fin cleaning device of the present invention; Fig.11 It is a three-dimensional diagram of the screen cleaning device of the present invention.

[0020] Among them, 1. heat absorption device; 2. waterproof and dustproof device; 3. metal frame; 4. heat dissipation fins; 5. upper sealing plate; 6. support column; 7. lower sealing plate; 8. side sealing plate; 9. copper foil; 10. paraffin; 11. graphene heat sink; 12. screen cleaning device; 13. slide groove; 14. fin cleaning device; 15. slider; 16. cleaning teeth; 17. anti-slip pattern; 18. connecting plate; 19. brush. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Please see attached Figure 1 , Attachment Figure 4 and attached Figure 7 The embodiment of the present invention provides a waterproof and dustproof display screen module, comprising: a heat absorbing device 1, a waterproof and dustproof device 2, a metal frame 3 and heat dissipation fins 4, the heat absorbing device 1 is arranged at the lower part of the metal frame 3, the heat dissipation fins 4 are fixedly connected to the bottom of the heat absorbing device 1, the waterproof and dustproof device 2 is bonded between the heat absorbing device 1 and the metal frame 3 by waterproof adhesive, the surface of the metal frame 3 is evenly coated with a hydrophobic layer, the base material of the hydrophobic layer is polymethyl methacrylate or polystyrene, the modifying material is methyltrimethoxysilane or dimethyldichlorosilane, the thickness of the hydrophobic layer is 1-5μm, the thickness of the heat dissipation fins 4 is 0.2-0.4mm, and the spacing of the heat dissipation fins 4 is greater than 12mm.

[0023] The heat absorbing device 1 can absorb the heat generated when the display screen is working, and then conduct the heat. The waterproof and dustproof device 2 can be waterproof, dustproof and protect the internal components. The metal frame 3 can support the display screen and is the basic structure of the display screen. It can also protect the display screen. The heat dissipation fins 4 can dissipate the heat conducted by the heat absorbing device 1 into the air. The hydrophobic layer base material is made of polymethyl methacrylate or polystyrene, and the modifying material is made of methyltrimethoxysilane or dimethyldichlorosilane to form a nano super hydrophobic material, which can quickly guide the surface liquid to flow away without leaving any residue. The thickness of the hydrophobic layer can be controlled by 1-5μm to ensure waterproof performance. While meeting the hydrophobic requirement, the cost can be controlled. At the same time, the hydrophobic layer thickness of 1-5μm is relatively thin, which affects the original thermal conductivity of the metal frame 3. The thickness of 1-5 μm can maintain the stability and durability of the hydrophobic layer while ensuring a firm bond with the metal frame 3. The thickness of the heat dissipation fins 4 is 0.2-0.4 mm, and the spacing of the heat dissipation fins 4 is greater than 12 mm, so that more fins can be arranged, thereby increasing the contact area with the air, so that heat can be more efficiently transferred from the heat dissipation fins to the surrounding air, thereby enhancing the heat dissipation capacity of the module. The larger spacing can avoid the air flow channel between the fins from being too narrow, prevent the air flow from being blocked, so that the air can continuously take away the heat from the heat dissipation fins, maintain an efficient heat dissipation process, ensure that each fin can fully exchange heat with the air, prevent excessive heat accumulation in a local area, and enable the entire heat dissipation system to work stably and continuously, ensuring that the display module maintains a suitable temperature during operation.

[0024] Please refer to the attached Figure 5 and attached Figure 6 In a preferred embodiment of the present invention, the waterproof and dustproof device 2 is made of nitrile rubber or fluororubber, and the waterproof and dustproof device 2 is a closed-loop strip as a whole. The waterproof and dustproof device 2 includes an upper sealing sheet 5, the bottom of the upper sealing sheet 5 is fixedly connected to the top of the support column 6, the bottom of the support column 6 is fixedly connected to the top of the lower sealing sheet 7, the upper sealing sheet 5 and the lower sealing sheet 7 are connected by a side sealing sheet 8, the cross-section of the support column 6 is cylindrical, and the longitudinal cross-section of the support column 6 is V-shaped.

[0025] The waterproof and dustproof device 2 is made of nitrile rubber or fluororubber, which makes it difficult for water molecules to penetrate and effectively prevents moisture from entering the display screen module. The surface is relatively dense, which can effectively prevent dust, sand and other tiny particles from entering. It has high strength and elasticity, and can withstand a certain degree of external forces such as stretching, compression and twisting without being easily deformed or damaged. During long-term use, even if it is subjected to vibration, collision and the like, it can still maintain the integrity and sealing of the structure, ensuring the long-term stability of the waterproof and dustproof performance. It has good oil resistance and solvent resistance to resist corrosion from various chemical substances, and has excellent anti-aging performance. The waterproof and dustproof device 2 is a closed-loop strip as a whole, which can effectively isolate rainwater and dust in all directions, and the upper sealing sheet 5 and the lower sealing sheet 7 can play The function of connecting the support column 6 is to connect the upper sealing sheet 5 and the lower sealing sheet 7 through the side sealing sheet 8, so as to prevent external air from eroding from the side. The cross-section of the support column 6 is cylindrical, which can make the force in all directions uniform, thereby more effectively dispersing the external force and reducing local stress concentration. At the same time, it is simpler in the processing and manufacturing process, which is conducive to reducing production difficulty and cost. At the same time, it is also convenient to ensure the dimensional accuracy and quality stability of the support column 6 and improve production efficiency. The longitudinal cross-section of the support column 6 is V-shaped, thereby realizing multiple folding, and it can automatically reset even under external force extrusion, ensuring a continuous and stable sealing state. Once it encounters rain erosion, the V-shape can absorb the impact energy through its own deformation ability and quickly return to its original state, thereby preventing moisture from leaking into the internal components.

[0026] Please see attached Figure 3 and attached Figure 8 In a preferred embodiment of the present invention, the heat absorption device 1 includes a copper foil 9, a paraffin wax 10 is arranged at the bottom of the copper foil 9, a graphene heat sink 11 is arranged at the bottom of the paraffin wax 10, and micropores are uniformly arranged inside the graphene heat sink 11, and the diameter of the micropores is between 100nm-400nm.

[0027] The copper foil 9 can have excellent thermal conductivity, so that the copper foil 9 can quickly absorb the heat generated when the display screen is working, and quickly transfer the heat to the paraffin 10 at the bottom. Through this efficient heat conduction, the display screen can be prevented from overheating due to heat accumulation, ensuring that it can operate stably at a suitable temperature, which helps to extend the service life of the display screen and maintain good working performance. At the same time, the copper foil 9 has certain strength and flexibility. In the heat absorption device 1, it can provide certain structural support for the paraffin 10 and the graphene heat sink 11, so that they maintain a stable position relationship, prevent displacement, deformation and other problems during the assembly and use of the module, and ensure the integrity and reliability of the entire heat absorption device structure. At the same time, copper is a good conductive metal, and the copper foil 9 can also play a certain electromagnetic shielding role. It can effectively block the electromagnetic radiation generated by the display screen when it is working from spreading outward, and can also reduce the impact of external electromagnetic interference on the internal circuit of the display screen module, improve the electromagnetic compatibility of the display screen module, and ensure the normal operation of the equipment. Paraffin 10 is a phase change material. In the heat absorption device 1, when the copper foil 9 absorbs the heat generated by the display screen and conducts it to the paraffin 10, when the phase change temperature of the paraffin 10 is reached, it will change from solid to liquid. In this process, a large amount of heat is absorbed and stored, thereby buffering the rapid accumulation of heat in the display screen, avoiding a sharp rise in temperature, and allowing the display screen module to maintain a relatively stable operating temperature for a certain period of time. At the same time, paraffin 10 has good fluidity and thermal conductivity. After it absorbs heat, it can conduct heat more evenly within itself, and then smoothly transfer the heat to the graphene heat sink 11 at the bottom, ensuring that the graphene heat sink 11 can receive heat more evenly and perform subsequent heat dissipation work, thereby improving the overall heat dissipation efficiency. Paraffin 10 is filled between the copper foil 9 and the graphene heat sink 11, and can fill the small gap between the two, making their contact closer. Close contact is conducive to more efficient conduction of heat between different materials, reducing the increase in thermal resistance and heat loss caused by poor contact, and further optimizing the heat dissipation performance of the entire heat-absorbing device. Graphene has extremely high thermal conductivity, which enables the graphene heat sink 11 to quickly absorb the heat transferred by the paraffin 10 and quickly conduct the heat to the surroundings. Its unique two-dimensional structure enables it to efficiently diffuse heat in the plane, disperse the concentrated heat, significantly improve the heat dissipation efficiency, and effectively reduce the operating temperature of the display screen module. At the same time, the graphene heat sink 11 is evenly provided with micropores, and the diameter of the micropores is between 100nm-400nm. These micropores increase the surface area of ​​the graphene heat sink 11, making it larger in contact with the air, and can more fully perform heat exchange, further speeding up the speed of heat dissipation to the surrounding air, and strengthening the overall heat dissipation effect. At the same time, the graphene material itself has the characteristics of being light and thin, and will not add too much weight and volume burden to the display screen module, which is convenient for the overall design and installation of the module.At the same time, graphene also has good chemical stability and mechanical properties, and can maintain stable heat dissipation performance under various environmental conditions, ensuring that it can continue to effectively play a heat dissipation role during long-term use and ensure the stable operation of the display module.

[0028] Please refer to the attached Figure 2 and attached Figure 7 In a preferred embodiment of the present invention, a threaded hole is provided at the bottom of the metal frame 3, and a through threaded hole is provided at a position corresponding to the threaded hole at the bottom of the heat absorption device 1 and the metal frame 3. The heat absorption device 1 and the metal frame 3 are threadedly connected by bolts, and the bolts penetrate the threaded holes of the heat absorption device 1 and the metal frame 3. The metal frame 3 is a rectangular ring with an open middle portion, and the metal frame 3 is made of aluminum alloy or stainless steel.

[0029] The threaded holes can enable the metal frame 3 to be reliably connected to the heat absorbing device 1. A through threaded hole is opened at the corresponding position of the heat absorbing device 1, and the two are threadedly connected by bolts. This connection method is stable and accurate, and can make the metal frame 3 and the heat absorbing device 1 tightly combined, ensuring that the components will not be loosened or shifted due to factors such as vibration and external force during use, and maintaining the structural stability of the entire display screen module. When the heat absorbing device 1 fails or needs to be upgraded and replaced, it can be easily removed from the metal frame 3 by unscrewing the bolts with the help of the detachability of the threaded connection, without the need to disassemble the entire module significantly, saving maintenance time and cost, improving maintenance efficiency, and extending the overall service life of the display screen module. At the same time, the threaded holes provide convenience for subsequent possible modification or expansion. Based on these threaded holes, other adapted functional components can be connected according to actual needs to increase the functional diversity of the module, such as connecting additional heat dissipation auxiliary equipment or protective devices, etc., to meet the special needs of different application scenarios. The rectangular ring opened in the middle of the metal frame 3 can effectively protect the fragile edges around the screen without blocking the display effect of the display screen. Aluminum alloy and stainless steel both have high strength and hardness, and can provide solid support for the display screen module. Although aluminum alloy has a low density, its strength is sufficient to bear the weight of the various components of the module, and it is not easy to deform when subjected to a certain external force impact; stainless steel has higher strength and rigidity, and can better cope with the external force in a complex environment, ensuring that the entire display screen module maintains a stable structure during installation, transportation and use, and protecting internal components from damage caused by structural deformation. A dense oxide film will naturally form on the surface of aluminum alloy. This oxide film has good corrosion resistance and can resist the erosion of water vapor, acid and alkali in the general environment; stainless steel contains alloy elements such as chromium and nickel, and has excellent corrosion resistance. Especially in a humid and corrosive environment, it can maintain stable performance for a long time, is not easy to rust and damage, thereby extending the service life of the metal frame 3 and ensuring the long-term reliable operation of the display screen module. Aluminum alloy has good thermal conductivity, can quickly absorb the heat transferred by the heat absorbing device 1, and dissipate it to the surrounding environment, assisting the entire module to dissipate heat; although the thermal conductivity of stainless steel is slightly inferior to that of aluminum alloy, it can also assist in heat dissipation to a certain extent, which helps to reduce the operating temperature of the display screen, ensure that it works within a suitable temperature range, and improve the stability and reliability of the display screen module. Aluminum alloy and stainless steel both have good processing properties and are easy to be processed into the required shape through casting, stamping, welding and other processes, which facilitates the production of a metal frame 3 with a rectangular ring structure with an open middle that meets the design requirements. This allows the efficient manufacture of products with stable quality and high precision during the production process, reduces production costs, and improves production efficiency.

[0030] Please refer to the attached Figure 7 and attached Fig.11In a preferred embodiment of the present invention, a screen cleaning device 12 is provided on the upper part of the metal frame 3, a fin cleaning device 14 is provided on the lower part of the heat absorption device 1, a brush 19 is fixedly connected to the bottom of the screen cleaning device 12, and connecting plates 18 are fixedly connected to both sides of the screen cleaning device 12.

[0031] The screen cleaning device 12 can be used to clean dust accumulated on the display screen surface. The fin cleaning device 14 can be used to clean dust between the heat sink fins 4, thereby ensuring that the heat sink fins 4 have good heat dissipation performance. The brush 19 can be used to gently brush off the dust on the screen surface, thereby avoiding scratches on the screen surface. The connecting plate 18 can be used to connect the fin cleaning device 14. When the screen cleaning device 12 is not needed, it can be removed through the connecting plate 18 to avoid blocking the screen.

[0032] Please refer to the attached Fig. 9 and attached Fig.10 In a preferred embodiment of the present invention, a slide groove 13 is provided on the side wall of the heat absorption device 1, a cleaning tooth 16 is provided in the middle of the fin cleaning device 14, a slider 15 is fixedly connected to the upper part of the fin cleaning device 14, the slider 15 is slidably connected to the inside of the slide groove 13, and anti-slip grooves 17 are provided on both sides of the fin cleaning device 14.

[0033] The slide groove 13 can be used to place the slider 15, and the slider 15 can fix the fin cleaning device 14 to the lower part of the heat absorption device 1. The cleaning teeth 16 can scrape away the dust in the gaps between the heat dissipation fins 4. The anti-slip grooves 17 can provide better friction when holding the fin cleaning device 14, thereby improving the cleaning efficiency.

[0034] Please refer to the attached Figure 1 and attached Figure 7 In a preferred embodiment of the present invention, threaded holes are provided on both sides of the fin cleaning device 14, and through threaded holes are provided at the intersection of both sides of the connecting plate 18 with the fin cleaning device 14. The threaded holes on both sides of the fin cleaning device 14 and the threaded holes on both sides of the screen cleaning device 12 coincide with each other, and the fin cleaning device 14 and the screen cleaning device 12 are threadedly connected by bolts, and the bolts penetrate the threaded holes of the fin cleaning device 14 and the screen cleaning device 12.

[0035] The screen cleaning device 12 can be effectively installed on the upper part of the fin cleaning device 14 by bolts through the threaded holes, so that the screen can be cleaned while the fin cleaning device 14 is used to clean the fins, killing two birds with one stone. When it is not necessary to clean the screen surface, the screen cleaning device 12 can be removed by bolts to achieve the purpose of not affecting the viewing of the screen.

[0036] Working principle: Place the display screen inside the waterproof and dustproof device 2, place the metal frame 3 on the upper part, place the heat absorption device 1 on the lower part, and then fix the heat absorption device 1 and the metal frame 3 to each other by bolts, use the metal frame 3 to provide external protection for the display screen, and use the heat absorption device 1 to quickly conduct the temperature generated when the display screen is working, and use the side sealing sheet 8 in the waterproof and dustproof device 2 to isolate external rain and dust, and use the support column 6 to provide a buffering force, which can quickly buffer the pressure of rain and can quickly restore to its original state, and the hydrophobic layer on the outer wall of the metal frame 3 can repel liquid water molecules.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof and dustproof display screen module, characterized in that: include: A heat absorbing device (1), a waterproof and dustproof device (2), a metal frame (3), and heat sink fins (4), characterized in that the heat absorbing device (1) is arranged at the bottom of the metal frame (3), the heat sink fins (4) are fixedly connected to the bottom of the heat absorbing device (1), the waterproof and dustproof device (2) is bonded between the heat absorbing device (1) and the metal frame (3) by waterproof adhesive, the surface of the metal frame (3) is evenly coated with a hydrophobic layer, the base material of the hydrophobic layer is polymethyl methacrylate or polystyrene, the modifying material is methyltrimethoxysilane or dimethyldichlorosilane, the thickness of the hydrophobic layer is 1-5 μm, the thickness of the heat sink fins (4) is 0.2-0.4 mm, and the spacing between the heat sink fins (4) is greater than 12 mm.

2. The waterproof and dustproof display screen module according to claim 1, characterized in that: The waterproof and dustproof device (2) is made of nitrile rubber or fluororubber, and the waterproof and dustproof device (2) is in the shape of a closed-loop strip as a whole.

3. The waterproof and dustproof display screen module according to claim 1, characterized in that: The waterproof and dustproof device (2) comprises an upper sealing sheet (5), the bottom of the upper sealing sheet (5) is fixedly connected to the top of a support column (6), the bottom of the support column (6) is fixedly connected to the top of a lower sealing sheet (7), the upper sealing sheet (5) and the lower sealing sheet (7) are connected via a side sealing sheet (8), the cross section of the support column (6) is cylindrical, and the longitudinal cross section of the support column (6) is V-shaped.

4. The waterproof and dustproof display screen module according to claim 1, characterized in that: The heat absorption device (1) comprises a copper foil (9), paraffin wax (10) is arranged at the bottom of the copper foil (9), a graphene heat sink (11) is arranged at the bottom of the paraffin wax (10), and micropores are evenly arranged inside the graphene heat sink (11), wherein the diameter of the micropores is between 100 nm and 400 nm.

5. The waterproof and dustproof display screen module according to claim 4, characterized in that: A threaded hole is provided at the bottom of the metal frame (3); a through threaded hole is provided at a position corresponding to the threaded hole at the bottom of the heat absorbing device (1) and the metal frame (3); the heat absorbing device (1) and the metal frame (3) are threadedly connected via bolts; the bolts penetrate the threaded holes of the heat absorbing device (1) and the metal frame (3).

6. The waterproof and dustproof display screen module according to claim 5, characterized in that: The metal frame (3) is a rectangular ring with an open middle portion, and the metal frame (3) is made of aluminum alloy or stainless steel.

7. The waterproof and dustproof display screen module according to claim 1, characterized in that: A screen cleaning device (12) is provided on the upper part of the metal frame (3), and a fin cleaning device (14) is provided on the lower part of the heat absorption device (1).

8. The waterproof and dustproof display screen module according to claim 7, characterized in that: A brush (19) is fixedly connected to the bottom of the screen cleaning device (12), and connecting plates (18) are fixedly connected to both sides of the screen cleaning device (12).

9. The waterproof and dustproof display screen module according to claim 7, characterized in that: A slide groove (13) is provided on the side wall of the heat absorption device (1), a cleaning tooth (16) is provided in the middle of the fin cleaning device (14), a slider (15) is fixedly connected to the upper part of the fin cleaning device (14), the slider (15) is slidably connected to the inside of the slide groove (13), and anti-slip grooves (17) are provided on both sides of the fin cleaning device (14).

10. The waterproof and dustproof display screen module according to claim 8, characterized in that: The fin cleaning device (14) is provided with threaded holes on both sides, and through threaded holes are provided at the intersection of the two sides of the connecting plate (18) and the fin cleaning device (14). The threaded holes on both sides of the fin cleaning device (14) and the threaded holes on both sides of the screen cleaning device (12) overlap with each other. The fin cleaning device (14) and the screen cleaning device (12) are threadedly connected by bolts, and the bolts pass through the threaded holes of the fin cleaning device (14) and the screen cleaning device (12).

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