LED display screen box

Abstract

The utility model discloses a light-emitting diode (LED) display screen box body which comprises a box body, the box body comprises a plastic front cover, a plastic rear cover 2 clamped with the plastic front cover and one or more LED modules installed on the front side of the plastic front cover, and an installation space used for installing an electronic assembly is formed between the plastic front cover and the plastic rear cover. A plurality of first protrusions are arranged on the plastic front cover in a protruding mode towards the plastic rear cover, the peripheral edge of the plastic rear cover protrudes outwards to form a plurality of connecting parts, and the connecting parts are provided with a plurality of first notches 211 and a plurality of screw holes, the first protrusions 11 can be clamped into the first notches 211, and the screw holes can be conveniently connected with an external installation frame. According to the scheme, the LED display screen box body is changed into a plastic box body, and the plastic box body is lighter and thinner than a conventional die-casting aluminum box body; and a conventional steel structure is not needed, a welding steel structure is not needed, the assembling efficiency is improved, and the labor cost is reduced. The structure considers the requirement of smoothness. And a plurality of screw holes are formed in the connecting part of the plastic box body, so that the connection between the box body and an external mounting frame is firmer and more stable.

Description

Technical Field

[0001] The utility model relates to the field of LED display screens, in particular to an LED display screen box. Background Art

[0002] LED display screen (LED display) is a device used to display various information such as text, images, videos, and video signals. It is being used more and more widely due to its high brightness, long life, and wide viewing angle. The LED display screen housing is usually installed with multiple LED modules and other electrical components spliced ​​together to form an LED display screen cabinet; large LED displays on the market, such as 4K displays, need to connect multiple LED display screen housings to splice multiple LED display screen cabinets together to form a large LED display screen.

[0003] Chinese patent publication number CN218998468U discloses a novel die-cast aluminum box structure of a small-pitch integrated LED display screen, which includes a housing, an electrical component and an LED module, wherein the electrical component is fixed in the middle of the housing, and the electrical component is electrically connected to the LED module, and the LED module is adsorbed on the front end of the housing; the upper and lower ends of the left side wall of the housing, the upper and lower ends of the right side wall, the left and right sides of the top, and the left and right sides of the bottom are respectively provided with interlocking screws and machine screws for fixing, and the interlocking screws and machine screws are arranged at intervals; the electrical component includes a HUB board, a power supply and an aluminum plate, the power supply is fixed in the middle of the housing, the rear end of the HUB board is fixedly connected to the middle of the housing, a mounting hole is formed in the middle of the HUB board, the front end of the power supply is arranged in the mounting hole, and the aluminum plate is fixed to the front end of the HUB board. However, the die-cast aluminum box usually needs to weld conventional steel structures, which is time-consuming and labor-intensive, and there are safety hazards during the construction process, and the die-cast aluminum box is heavy and not easy to install. In addition, conventional steel structures have poor flatness, large errors, and low precision. The flatness of the steel structure directly affects the flatness of the box and the size of the seams between the boxes, resulting in the need to adjust the flatness of the box by adjusting the connecting pieces between the boxes during installation. This is cumbersome and inefficient. In addition, the use of connecting pieces to splice the two boxes together requires that the connecting pieces must be removed first when a single box needs to be disassembled for maintenance, resulting in more troublesome disassembly and maintenance of a single LED screen box.

[0004] Therefore, how to overcome the above-mentioned defects has become an important issue to be solved urgently by those skilled in the art. Utility Model Content

[0005] The utility model overcomes the shortcomings of the above-mentioned technology and provides an LED display screen box.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A LED display box includes a box body 100, wherein the box body 100 includes: a plastic front cover 1, a plastic back cover 2 snap-fitted with the plastic front cover 1, and one or more LED modules 3 installed on the front side of the plastic front cover 1, wherein an installation space for installing electronic components is formed between the plastic front cover 1 and the plastic back cover 2; wherein the plastic front cover 1 is provided with a plurality of first protrusions 11 protruding toward the plastic back cover 2, and the edges of the plastic back cover 2 protrude outward to form a plurality of connecting portions 21, and the connecting portions 21 are provided with a plurality of first recesses 211 into which the first protrusions 11 can be snapped, and a plurality of screw holes 212 for facilitating connection with an external mounting frame.

[0008] Preferably, the first protrusion 11 is a cylindrical protrusion, and the first recess 211 is an arc-shaped recess.

[0009] Preferably, the plastic back cover 2 is provided with a heat dissipation grille 22 .

[0010] Preferably, the surface of the LED module 3 is coated with an organic resin layer 5 .

[0011] Preferably, the connecting portion 21 located at the four corners of the plastic back cover 2 is provided with two first recesses 211 with different recessed directions, and the connecting portion 21 located at a non-corner position of the plastic back cover 2 is provided with one or more first recesses 211 with the same recessed direction, and the recessed directions of the two first recesses 211 with different recessed directions are perpendicular to each other.

[0012] Preferably, the screw holes 212 are provided at the four corners of the plastic back cover 2 and at the connecting portion 21 in the middle of the edge.

[0013] Preferably, the extension length of the connection portion 21 located at the middle position of the edge is longer than the extension length of the connection portion 21 at other positions.

[0014] Preferably, the plastic front cover 1 is a hollow structure, and a plurality of magnetic holes 12 for installing magnetic blocks therein are concavely provided inwardly on the non-hollow part of the plastic front cover 1 .

[0015] Preferably, when the LED display screen box is the main control box, a first adapter board 1011, a first power supply 1012, a second power supply 1013, a sending card 1014, and an Android board 1015 are installed in the installation space, and the first adapter board 1011 is connected to a first receiving card 1016 by a hard connection.

[0016] Preferably, when the LED display screen box is a secondary control box, a second adapter board 1021 and a third power supply 1022 are installed in the installation space, and the second adapter board 1021 is connected to the second receiving card 1023 by hard connection.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The LED display cabinet of this case is changed to a plastic cabinet, and there is no need to use the traditional die-cast aluminum cabinet. It is lighter and thinner than the conventional die-cast aluminum cabinet. Moreover, the plastic cabinet does not require conventional steel structure or welded steel structure, which not only improves assembly efficiency but also reduces labor costs. Secondly, the structure of the plastic cabinet of this case takes into account the need for flatness. The plastic front cover is provided with multiple first protrusions protruding toward the plastic back cover, and is snapped with the plastic back cover. This snap-on method not only makes the connection between the front cover and the back cover tighter, but also reduces the possibility of gaps and unevenness caused by assembly. In addition, unlike the traditional splicing method of the die-cast cabinet, multiple screw holes are opened on the connecting part of the plastic cabinet. This design makes the connection between the cabinet and the external mounting frame more firm and stable. Since the connection is directly fixed to the external mounting frame by screws, the cumulative error that may be caused by multiple splicing is avoided, thereby ensuring the overall flatness of the cabinet. Moreover, the plastic material itself has a certain elasticity and toughness, and can automatically adjust its shape within a certain range to reduce deformation caused by external force or temperature changes; this characteristic enables the plastic box to remain relatively flat and stable when subjected to external force or environmental changes.

[0019] 2. The plastic back cover of this case is equipped with a heat dissipation fence to prevent interference, heat dissipation, and dust from the components of the display screen. The surface of the LED module of this case is coated with an organic resin layer, which can make the surface of the LED module smoother and solve the problems of anti-knock, anti-collision, and anti-scratch during transportation.

[0020] 3. In this case, by setting two first notches and first protrusions perpendicular to each other between the plastic front cover and the plastic back cover for clamping, a multi-angle and multi-dimensional fixing method can be formed, which can not only enhance the connection strength between the two, but also effectively prevent dislocation or loosening caused by external force or vibration, thereby improving the stability of the overall structure. Moreover, since the depression directions of the two first notches are perpendicular, they can absorb forces from different directions respectively, which is conducive to optimizing the force distribution and reducing the situation where a single point is subjected to excessive force, thereby improving the durability and reliability of the product. In addition, the connection part of the plastic back cover at the four corners is provided with two first notches perpendicular to each other, while only one notch is provided at other positions. This is because the four corners are the key stress points in the structure, and the provision of two first notches perpendicular to each other can form a double fixation, which greatly enhances the connection strength between the plastic front cover and the plastic back cover at these key positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the exploded structure of the LED display cabinet as the main control cabinet.

[0022] Figure 2 It is a structural schematic diagram of the plastic front cover of this case.

[0023] Figure 3 It is a structural schematic diagram of the plastic back cover of this case.

[0024] Figure 4 It is a schematic diagram of the exploded structure of the LED display cabinet as a sub-control cabinet in this case. DETAILED DESCRIPTION

[0025] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0026] like Figures 1 to 4 , a LED display box, including a box body 100, the box body 100 includes: a plastic front cover 1, a plastic back cover 2 snapped with the plastic front cover 1, one or more LED modules 3 installed on the front side of the plastic front cover 1, and an installation space for installing electronic components is formed between the plastic front cover 1 and the plastic back cover 2; wherein, the plastic front cover 1 is provided with a plurality of first protrusions 11 protruding toward the plastic back cover 2, and the edges of the plastic back cover 2 are protruding outward to form a plurality of connecting parts 21, and the connecting parts 21 are provided with a plurality of first recesses 211 for the first protrusions 11 to be snapped into and a plurality of screw holes 212 for easy connection with an external mounting frame. In specific implementation, the box thickness of the present application is lighter and thinner than that of a conventional die-cast aluminum box, the thickness of the empty box + internal electronic components + LED modules is only 35mm, and the thickness of the fixed outer frame of the box is 38mm, and the box weight is 50% lighter.

[0027] As mentioned above, the LED display cabinet of this case is changed to a plastic cabinet, and there is no need to use a traditional die-cast aluminum cabinet. It is lighter and thinner than a conventional die-cast aluminum cabinet. Moreover, the plastic cabinet does not require a conventional steel structure or a welded steel structure, which not only improves assembly efficiency but also reduces labor costs. Secondly, the structure of the plastic cabinet of this case takes into account the need for flatness. The plastic front cover 1 is provided with a plurality of first protrusions 11 protruding toward the plastic rear cover, and is snapped with 211 on the plastic rear cover 2. This snap-on method not only makes the connection between the front cover and the rear cover tighter, but also reduces the possibility of gaps and unevenness caused by assembly. In addition, unlike the splicing method of the traditional die-cast cabinet, a plurality of screw holes 212 are provided on the connecting part of the plastic cabinet. This design makes the connection between the cabinet and the external mounting frame more firm and stable. Since the connection is directly fixed to the external mounting frame by screws, the cumulative error that may be caused by multiple splicing is avoided, thereby ensuring the overall flatness of the cabinet. Moreover, the plastic material itself has a certain elasticity and toughness, and can automatically adjust its shape within a certain range to reduce deformation caused by external force or temperature changes; this characteristic enables the plastic box to remain relatively flat and stable when subjected to external force or environmental changes.

[0028] like Figure 1 or Figure 4 As shown, in a specific implementation, the first protrusion 11 is a cylindrical protrusion, and the first recess 211 is an arc-shaped recess. In this way, the cylindrical shape of the first protrusion 11 can make the force distribution of the protrusion and the recess more uniform when in contact, avoiding the problem of local stress concentration, which is conducive to maintaining the stability of the box body, thereby ensuring the flatness of the box body; on the other hand, it helps to reduce the wear caused by long-term force and extend the service life of the first protrusion 11.

[0029] like Figure 1 or Figure 4 As shown, in the specific implementation, the plastic back cover 2 is provided with a heat dissipation fence 22. In this way, the components of the display screen can be protected from interference, heat dissipation, and dust.

[0030] As described above, in a specific implementation, the surface of the LED module 3 is coated with an organic resin layer 5. In this way, the surface of the LED module 3 can be made smoother, and the problems of anti-knock, anti-collision, and anti-scratch during transportation are solved.

[0031] like Figure 3 As shown, in a specific implementation, the connecting portion 21 located at the four corners of the plastic back cover 2 is provided with two first recesses 211 with different recessed directions, and the connecting portion 21 located at a non-corner position of the plastic back cover 2 is provided with one or more first recesses 211 with the same recessed direction, and the recessed directions of the two first recesses 211 with different recessed directions are perpendicular to each other.

[0032] As described above, in this case, by setting two first notches 211 and first protrusions 11 in two perpendicular directions between the plastic front cover 1 and the plastic back cover 2 for clamping, a multi-angle and multi-dimensional fixing method can be formed, which can not only enhance the connection strength between the two, but also effectively prevent the dislocation or loosening caused by external force or vibration, thereby improving the stability of the overall structure. Moreover, since the two first notches 211 are in a perpendicular direction, they can absorb forces from different directions respectively, which is conducive to optimizing the force distribution and reducing the situation where a single point is subjected to excessive force, thereby improving the durability and reliability of the product. In addition, the connection portion 21 of the plastic back cover 2 at the four corners is provided with two first notches in a perpendicular direction, while only one notch is provided at other positions. This is because the four corners are the key stress points in the structure, and the provision of two first notches in a perpendicular direction can form a double fixation, which greatly enhances the connection strength of the plastic front cover 1 and the plastic back cover 2 at these key positions.

[0033] like Figure 3 As shown, in a specific implementation, the connection part 21 located at the four corners of the plastic back cover 2 and at the middle of the edge is provided with the screw holes 212. In this way, the connection between the plastic back cover 2 and the external mounting frame can be ensured to be more firmly connected, and at the same time, the screws can evenly disperse the force, effectively preventing the plastic back cover 2 from loosening or deforming during use, thereby improving the stability of the overall structure and further ensuring the flatness of the box. Moreover, corners and edges are usually areas with greater force, and setting screw holes at these locations can better withstand pressure and impact from the outside.

[0034] like Figure 3 As shown, in a specific implementation, the extension length of the connection portion 21 located at the middle position of the edge is longer than the extension length of the connection portion 21 at other positions.

[0035] As mentioned above, since the middle of the edge is usually the area where the force is more concentrated, the extension length of the connecting portion 21 in the middle of the edge is designed to be longer in this case, which can effectively increase the supporting force and load-bearing capacity of the area, better disperse and balance the force, so that the plastic front cover 1 and the plastic back cover 2 can be clamped more tightly and firmly, and the deformation of the box caused by external forces can be reduced, thereby maintaining the overall flatness of the box.

[0036] like Figure 3 As shown, in a specific implementation, the plastic front cover 1 is a hollow structure, and the plastic front cover 1 is provided with a plurality of magnetic holes 12 on its non-hollow part for the magnetic blocks to be installed. In this way, the hollow structure design of the plastic front cover 1 can save materials and facilitate the heat dissipation of the internal components. The provision of the magnetic holes 5 is conducive to the magnetic installation of the LED module 3, and the installation is simple.

[0037] like Figure 1 As shown, when the LED display box is the main control box, the installation space is installed with a first adapter board 1011, a first power supply 1012, a second power supply 1013, a sending card 1014, and an Android board 1015. The first adapter board 1011 is connected to a first receiving card 1016 by hard connection, and the first power supply 1012 and the second power supply 1013 are installed at a position with a heat dissipation fence 22. Figure 4 As shown, the LED display box is a secondary control box, and a second adapter board 1021 and a third power supply 1022 are installed in the installation space. The second adapter board 1021 is connected to a second receiving card 1023 by hard connection, and the third power supply 1022 is installed at a position with a heat dissipation fence 22. In specific implementation, an Android board refers to a control card made based on an Android system or an Android protocol, which is mainly used for the control and operation of an LED display. Using an Android board can conveniently control the display content and effect of the LED display. The hard connection method can be copper busbar overlap, welding, or a method in which a pin header without wires is connected to a female header.

[0038] As described above, by setting the sending card 1014 and the Android board 1015 of the main control box, it is convenient to form an integrated card configuration as a host inside the all-in-one machine, so that the display screen with this configuration can be used as the main display screen to control the remaining sub-display screen boxes 102. Compared with the existing method that requires an additional host to be connected to different display screen boxes for control, the external devices connected in this case are reduced. On the one hand, it reduces the connection of complicated network cables, USB and other wires, which is convenient for subsequent installation and replacement; on the other hand, the display screen all-in-one machine in this case can also complete the control and display functions by itself when it is disconnected from the external PC or external device. At the same time, the power supply is installed at a position with a heat dissipation fence 22, which is conducive to good heat dissipation.

[0039] As mentioned above, this case protects a LED display screen cabinet, and all technical solutions that are the same or similar to this case should be deemed to fall within the protection scope of this case.

Claims

1. A LED display box, comprising a box body (100), characterized in that The box body (100) comprises: a plastic front cover (1), a plastic back cover (2) snap-fitted to the plastic front cover (1), and one or more LED modules (3) mounted on the front side of the plastic front cover (1); an installation space for installing electronic components is formed between the plastic front cover (1) and the plastic back cover (2); wherein the plastic front cover (1) is provided with a plurality of first protrusions (11) protruding toward the plastic back cover (2); the edges of the plastic back cover (2) protrude outward to form a plurality of connecting portions (21); the connecting portions (21) are provided with a plurality of first recesses (211) into which the first protrusions (11) can be snapped, and a plurality of screw holes (212) for facilitating connection with an external mounting frame.

2. The LED display box according to claim 1, characterized in that The first protrusion (11) is a cylindrical protrusion, and the first recess (211) is an arc-shaped recess.

3. The LED display box according to claim 1, characterized in that The plastic back cover (2) is provided with a heat dissipation grille (22).

4. The LED display box according to claim 1, characterized in that The surface of the LED module (3) is coated with an organic resin layer (5).

5. The LED display box according to claim 1, characterized in that The connecting portion (21) located at the four corners of the plastic back cover (2) is provided with two first notches (211) with different recessed directions, and the connecting portion (21) located at a non-corner position of the plastic back cover (2) is provided with one or more first notches (211) with the same recessed direction, and the recessed directions of the two first notches (211) with different recessed directions are perpendicular to each other.

6. The LED display box according to claim 1, characterized in that The screw holes (212) are provided on the connection portion (21) located at the four corners of the plastic back cover (2) and at the middle of the edge.

7. The LED display box according to any one of claims 1 to 6, characterized in that The extension length of the connecting portion (21) located at the middle position of the edge is longer than the extension length of the connecting portions (21) at other positions.

8. The LED display box according to claim 1, characterized in that The plastic front cover (1) is a hollow structure, and a plurality of magnetic attraction holes (12) are concavely provided inwardly on the non-hollow part of the plastic front cover (1) for the magnetic attraction blocks to be installed therein.

9. The LED display box according to claim 3, characterized in that When the LED display screen box is a main control box, a first adapter board (1011), a first power supply (1012), a second power supply (1013), a sending card (1014), and an Android board (1015) are installed in the installation space; the first adapter board (1011) is connected to a first receiving card (1016) by hard connection; and the first power supply (1012) and the second power supply (1013) are installed at a position with a heat dissipation fence (22).

10. The LED display box according to claim 3, characterized in that When the LED display screen box is a secondary control box, a second adapter board (1021) and a third power supply (1022) are installed in the installation space; the second adapter board (1021) is connected to a second receiving card (1023) by hard connection; and the third power supply (1022) is installed at a position with a heat dissipation fence (22).

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