LED screen video signal transmission device

Abstract

The utility model relates to signal transmission technical field, and disclose a kind of LED screen video signal transmission device;Including shell and body, the body is set to the inside of shell, the inner wall of shell is equipped with the heat dissipation fan for the heat dissipation of body, the shell is fixed with mounting bracket on one side by bolt, the inside mounting of mounting bracket is equipped with frame, the inner wall of frame is fixed with the filter screen for the filtering of cooling wind, the utility model filters dust, hair and other impurities in the cooling wind of shell by filter screen, prevent its adhesion on body or heat dissipation fan and influence heat dissipation efficiency or cause short-circuit problem, by scraper directly contacting filter screen surface, by physical scraping remove dust, restore the ventilation performance of filter screen, by flow guide frame can part cooling wind be guided to the bottom of body, cooperate with flow guide groove and use, improve the heat dissipation effect to the bottom of body.

Description

Technical Field

[0001] This utility model relates to the field of signal transmission technology, specifically to an LED screen video signal transmission device. Background Technology

[0002] A video signal for an LED screen is a digital signal specifically designed to drive an LED display. Its core function is to convert the image and video content of the video source into a data stream that the LED screen can recognize, and to ensure that the picture is presented accurately and smoothly. The transmission of the video signal is mainly carried out using a switch. A switch is a network device used for forwarding electrical signals. It can provide a dedicated electrical signal path for any two network nodes connected to the switch.

[0003] Existing signal transmission switches typically use cooling fans for cooling during operation. However, these fans cannot handle the dust and impurities carried by the cooling air. Conductive particles in the dust adhere to the circuit board surface with the airflow, and in humid environments, they can easily form microcircuits, leading to short circuits or component breakdown. Dust particles can also interfere with signal transmission, resulting in a decrease in signal quality. Furthermore, switches are usually installed directly inside a cabinet, with the bottom of the switch in direct contact with the cabinet. This prevents the bottom of the switch from receiving effective heat dissipation, and the enclosed bottom prevents natural convection from forming, causing hot air to stagnate inside the switch and affecting its heat dissipation performance.

[0004] Therefore, it is necessary to provide a new LED screen video signal transmission device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an LED screen video signal transmission device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an LED screen video signal transmission device, including a housing, and further comprising:

[0007] The main body is located inside the housing. A cooling fan for dissipating heat from the main body is installed on the inner wall of the housing. A mounting bracket is fixed to one side of the housing by bolts. A frame is installed inside the mounting bracket. A filter screen for filtering the cooling air is fixed to the inner wall of the frame.

[0008] A connecting cover is fixed to one side of the mounting bracket by bolts. A rotating rod is rotatably connected to the inner wall of the connecting cover, and a scraper for cleaning the filter screen is fixed to one end of the rotating rod.

[0009] A partition is fixed to the inner wall of the shell. A flow guide is installed on the top of the partition and the bottom of the inner cavity of the shell. The inner cavity of the flow guide is provided with a flow guide groove for heat dissipation at the bottom of the main body. A limiting member is provided on the top of the flow guide for limiting the main body.

[0010] Preferably, one end of the rotating rod is fixed with a handle, the inner wall of the mounting bracket is fixed with a mounting ring, and one side of the mounting ring is fixed with multiple sets of locking rods, and the outer side of the locking rods is engaged with the inner wall of the frame.

[0011] Preferably, the inner cavity of the housing is provided with an air outlet, and a mounting frame is fixed on one side of the housing. A dustproof net for preventing dust from the air outlet is slidably connected to the inner wall of the mounting frame.

[0012] Preferably, the limiting member includes a fixing frame fixed to the top of the guide frame, a connecting frame slidably connected to the inner wall of the fixing frame, and a limiting plate fixed to one side of the connecting frame.

[0013] Preferably, a protective pad is provided on one side of the limiting plate, and the protective pad is made of rubber.

[0014] Preferably, a limiting block is fixed to the outer side of the limiting plate, and a limiting bolt for limiting the limiting block is threadedly connected to the inner wall of the fixing frame.

[0015] Preferably, the outer side of the housing is rotatably connected to a cover and an inspection door via hinges.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention uses a filter screen to filter dust, hair, and other impurities from the cooling air entering the housing, preventing them from adhering to the main body or cooling fan and affecting heat dissipation efficiency or causing short circuits. A scraper directly contacts the surface of the filter screen to physically remove accumulated dust and restore the ventilation performance of the filter screen. A guide frame can guide some of the cooling air to the bottom of the main body, which, when used with the guide groove, improves the heat dissipation effect on the bottom of the main body. A limiting plate limits the main body to improve its stability, and a protective pad prevents the surface of the main body from being scratched. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the LED screen video signal transmission device provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the shell structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the mounting bracket in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the partition plate of this utility model.

[0022] In the diagram: 1. Shell; 2. Body; 3. Cooling fan; 4. Mounting bracket; 5. Frame; 6. Filter screen; 7. Connecting cover; 8. Rotating rod; 9. Scraper; 10. Partition; 11. Air guide frame; 12. Air guide channel; 13. Limiting component; 131. Fixing bracket; 132. Connecting bracket; 133. Limiting plate; 14. Handle; 15. Mounting ring; 16. Clamping rod; 17. Air outlet; 18. Mounting frame; 19. Dustproof net; 20. Protective pad; 21. Limiting block; 22. Limiting bolt; 23. Shell cover; 24. Inspection door. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 As shown, an LED screen video signal transmission device includes a housing 1 and a body 2. The body 2 is disposed inside the housing 1. A cooling fan 3 for dissipating heat from the body 2 is installed on the inner wall of the housing 1. The cooling fan 3 dissipates heat generated by the body 2 through forced convection, thereby maintaining the internal temperature within a safe range and preventing overheating that could lead to performance degradation or hardware damage. A mounting bracket 4 is fixed to one side of the housing 1 by bolts. A frame 5 is installed inside the mounting bracket 4. A filter screen 6 for filtering the cooling air is fixed to the inner wall of the frame 5. The filter screen 6 filters dust, hair, and other impurities in the cooling air entering the housing 1, preventing them from adhering to the body 2 or the cooling fan 3 and affecting the heat dissipation efficiency or causing short circuits.

[0025] The connecting cover 7 is fixed to one side of the mounting bracket 4 by bolts. The inner wall of the connecting cover 7 is rotatably connected to the rotating rod 8. One end of the rotating rod 8 is fixed with a scraper 9 for cleaning the filter screen 6. Rotating the rotating rod 8 can drive the scraper 9 to rotate. The scraper 9 directly contacts the surface of the filter screen 6 and removes the accumulated dust by physical scraping, restoring the ventilation performance of the filter screen. The connecting cover 7 can be disassembled, which is convenient for cleaning the scraped dust and disassembling and replacing the filter screen 6.

[0026] The partition 10 is fixed to the inner wall of the housing 1. A flow guide 11 is installed on the top of the partition 10 and the bottom of the inner cavity of the housing 1. The inner cavity of the flow guide 11 is provided with a flow guide groove 12 for heat dissipation of the bottom of the main body 2. The flow guide 11 can guide some cooling air to the bottom of the main body 2. When used in conjunction with the flow guide groove 12, the heat dissipation effect of the bottom of the main body 2 is improved. A limiting member 13 is provided on the top of the flow guide 11. The limiting member 13 can be used to limit the main body 2 and improve the stability of the main body 2.

[0027] A handle 14 is fixed to one end of the rotating rod 8. An installation ring 15 is fixed to the inner wall of the mounting bracket 4. Multiple sets of clamping rods 16 are fixed to one side of the mounting ring 15, and the outer side of the clamping rods 16 is engaged with the inner wall of the frame 5. The frame 5 is inserted into the outer side of the clamping rods 16, and the filter screen 6 can be installed on one side of the mounting ring 15. The connecting cover 7 is installed on one side of the mounting bracket 4 by bolts. Rotating the handle 14 drives the rotating rod 8 and the scraper 9 to rotate. The scraper 9 directly contacts the surface of the filter screen 6, and removes the accumulated dust by physical scraping, restoring the ventilation performance of the filter screen. The connecting cover 7 can be disassembled, which is convenient for cleaning the scraped dust and disassembling and replacing the filter screen 6.

[0028] An air outlet 17 is provided in the inner cavity of the housing 1. A mounting frame 18 is fixed on one side of the housing 1. A dustproof net 19 for preventing dust from entering the housing 1 is slidably connected to the inner wall of the mounting frame 18. Hot air inside the housing 1 is discharged through the air outlet 17 to form a heat dissipation airflow circulation, maintain the internal temperature stability, and prevent external dust from entering the housing 1 through the air outlet 17. The mounting frame 18 provides a sliding mounting track for the dustproof net 19, which facilitates the disassembly and cleaning of the dustproof net 19.

[0029] The limiting component 13 includes a fixed frame 131 fixed to the top of the guide frame 11. A connecting frame 132 is slidably connected to the inner wall of the fixed frame 131. A limiting plate 133 is fixed to one side of the connecting frame 132. A protective pad 20 is provided on one side of the limiting plate 133. The protective pad 20 is made of rubber. A limiting block 21 is fixed to the outer side of the limiting plate 133. A limiting bolt 22 for limiting the limiting block 21 is threadedly connected to the inner wall of the fixed frame 131. The connecting frame 132 is pulled to slide inside the fixed frame 131, and the body 2 is placed on the connecting frame 132. Different models and sizes of body 2 can be installed. The limiting block 21 is fixed to one side of the fixed frame 131 by the limiting bolt 22, so that the limiting plate 133 limits the body 2, improves the stability of the body 2, and prevents the surface of the body 2 from being scratched by the protective pad 20.

[0030] The outer side of the housing 1 is connected to the housing cover 23 and the access door 24 by hinges.

[0031] Working Principle: When using this device, the connecting frame 132 is pulled and slids inside the fixed frame 131, placing the main body 2 on the connecting frame 132. Different sizes and models of the main body 2 can be installed. The limiting block 21 is fixed to one side of the fixed frame 131 by the limiting bolt 22, allowing the limiting plate 133 to limit the main body 2, improving its stability. The protective pad 20 prevents scratches on the surface of the main body 2. Forced convection cooling by the cooling fan 3 dissipates the heat generated by the main body 2 outside the housing 1, maintaining the internal temperature within a safe range and preventing overheating that could lead to performance degradation or hardware damage. The frame 5 is inserted outside the clamping rod 16, allowing the filter screen 6 to be installed on one side of the mounting ring 15. The filter screen 6 filters dust, hair, and other impurities from the cooling air entering the housing 1, preventing them from adhering to the main body 2 or the cooling fan 3 and affecting heat dissipation. To address the issue of thermal inefficiency or short circuits, the connecting cover 7 is bolted to one side of the mounting bracket 4. Rotating the handle 14 causes the rotating rod 8 and scraper 9 to rotate, allowing the scraper 9 to directly contact the surface of the filter screen 6. This physical scraping removes accumulated dust and restores the filter's ventilation performance. The connecting cover 7 is also removable, facilitating the cleaning of the scraped dust and the replacement of the filter screen 6. The air guide 11 directs some cooling air to the bottom of the main body 2, working in conjunction with the air guide groove 12 to improve heat dissipation at the bottom of the main body 2. Hot air is expelled from the housing 1 through the air outlet 17, forming a cooling airflow circulation to maintain stable internal temperature. The dustproof net 19 prevents external dust from entering the housing 1 through the air outlet 17. The mounting frame 18 provides a sliding mounting track for the dustproof net 19, facilitating its removal and cleaning.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A video signal transmission device for an LED screen, comprising a housing (1), characterized in that, Also includes: The main body (2) is located inside the housing (1). A cooling fan (3) for dissipating heat from the main body (2) is installed on the inner wall of the housing (1). A mounting bracket (4) is fixed to one side of the housing (1) by bolts. A frame (5) is installed inside the mounting bracket (4). A filter screen (6) for filtering the cooling air is fixed to the inner wall of the frame (5). The connecting cover (7) is fixed to one side of the mounting bracket (4) by bolts. The inner wall of the connecting cover (7) is rotatably connected to a rotating rod (8). One end of the rotating rod (8) is fixed with a scraper (9) for cleaning the filter screen (6). A partition (10) is fixed to the inner wall of the housing (1). A flow guide (11) is installed on the top of the partition (10) and the bottom of the inner cavity of the housing (1). The inner cavity of the flow guide (11) is provided with a flow guide groove (12) for heat dissipation of the bottom of the body (2). The top of the flow guide (11) is provided with a limiting member (13) for limiting the body (2).

2. The LED screen video signal transmission device according to claim 1, characterized in that: One end of the rotating rod (8) is fixed with a handle (14), and the inner wall of the mounting bracket (4) is fixed with a mounting ring (15). One side of the mounting ring (15) is fixed with multiple sets of locking rods (16), and the outer side of the locking rods (16) is engaged with the inner wall of the frame (5).

3. The LED screen video signal transmission device according to claim 1, characterized in that: The inner cavity of the housing (1) is provided with an air outlet (17), and a mounting frame (18) is fixed on one side of the housing (1). A dustproof net (19) for dustproofing the air outlet (17) is slidably connected to the inner wall of the mounting frame (18).

4. The LED screen video signal transmission device according to claim 1, characterized in that: The limiting member (13) includes a fixed frame (131) fixed to the top of the guide frame (11), and a connecting frame (132) is slidably connected to the inner wall of the fixed frame (131). A limiting plate (133) is fixed on one side of the connecting frame (132).

5. The LED screen video signal transmission device according to claim 4, characterized in that: A protective pad (20) is provided on one side of the limiting plate (133), and the protective pad (20) is made of rubber.

6. The LED screen video signal transmission device according to claim 4, characterized in that: A limiting block (21) is fixed to the outside of the limiting plate (133), and a limiting bolt (22) for limiting the limiting block (21) is threadedly connected to the inner wall of the fixing frame (131).

7. The LED screen video signal transmission device according to claim 1, characterized in that: The outer side of the housing (1) is connected to a cover (23) and an inspection door (24) by hinges.

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