LED display box body and LED display device with same

Abstract

The utility model provides an LED display box and an LED display device with the same, and the LED display box comprises a display module which comprises a fixed frame and a plurality of LED modules which are arranged at the front side of the fixed frame in an array manner; the first fixing piece is arranged on the fixing frame and the LED module in a penetrating mode from back to front so that the LED module can be fixed to the fixing frame. The box body is supported on the rear side of the display module; the second fixing piece penetrates through the box body and the fixing frame from back to front so as to fix the display module on the box body; and the control board card is arranged between the display module and the box body. According to the technical scheme, the problem that an LED module in the prior art is prone to shifting and even falling can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to an LED display box and an LED display device having the same. Background Art

[0002] In the related art, an LED display device generally includes a bracket and an LED display box disposed on the front side of the bracket. The LED display box generally includes a box body and a plurality of LED modules disposed on the front side of the box body.

[0003] For LED displays with limited space behind the bracket, front-accessible maintenance is often used. To facilitate front access, the LED module is typically magnetically attached to the front of the display. When maintenance is required, a vacuum suction cup or other tool can be used to remove the module from the front of the display, allowing for access to the interior.

[0004] However, when the above-mentioned LED display device is impacted or the LED display box is moved during use, the magnetic connection between the LED module and the box is easily invalidated, causing the LED module to shift or even fall. Utility Model Content

[0005] The main purpose of the present invention is to provide an LED display box and an LED display device having the same, so as to solve the problem in the related art that LED modules are prone to displacement or even falling.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, an LED display box is provided, comprising: a display module, including a fixing frame and a plurality of LED modules, wherein the plurality of LED module arrays are arranged on the front side of the fixing frame; a first fixing member, which passes through the fixing frame and the LED module from back to front to fix the LED module on the fixing frame; a box, which is supported on the rear side of the display module; a second fixing member, which passes through the box and the fixing frame from back to front to fix the display module on the box; and a control board, which is arranged between the display module and the box.

[0007] Furthermore, the LED display box further comprises a first positioning member arranged on the fixing frame and a second positioning member arranged on the box, and the first positioning member and the second positioning member are magnetically engaged with each other.

[0008] Furthermore, the control board card includes a plurality of adapter boards fixed on the fixing frame and plugged with the LED modules, and a control board arranged on the box body, and the adapter boards are plugged with the control board.

[0009] Furthermore, the fixing frame includes an outer frame and a plurality of supporting crossbeams and a plurality of supporting vertical beams arranged in the outer frame. The outer frame, the plurality of supporting crossbeams and the plurality of supporting vertical beams are arranged to form a plurality of installation frames corresponding to the plurality of LED modules.

[0010] Furthermore, the display module also includes a plurality of conductive sealing rings corresponding to the plurality of mounting frames. Each conductive sealing ring is arranged on the front surface of the mounting frame and abuts against the corresponding LED module.

[0011] Furthermore, the cross section of the conductive sealing ring is an annular structure; and / or, a mounting ring groove is provided on the mounting frame, and the conductive sealing ring is provided in the mounting ring groove.

[0012] Furthermore, a leveling boss is provided on the rear surface of the fixing frame, and the LED display box further comprises a leveling column which is adjustably arranged in the box from the back to the front, and the front surface of the leveling column is in contact with the leveling boss.

[0013] Furthermore, the LED display box also includes a leveling piece passing through the side wall of the box.

[0014] Furthermore, the leveling piece includes a first section located inside the box and a second section located outside the box, the rear surface of the first section protrudes backward from the rear surface of the second section, a first connecting screw hole is provided on the first section, and a second connecting screw hole is provided on the second section.

[0015] According to another aspect of the present invention, an LED display device is provided, comprising a bracket and an LED display box disposed on the bracket, wherein the LED display box is the above-mentioned LED display box.

[0016] In the present invention, a first fixing member extends from the back to the front through the fixing frame and the LED module to secure the LED module to the fixing frame, thereby forming an integral structure with the fixing frame and the LED module. This integral structure is then secured to the housing by a second fixing member extending from the back to the front through the housing and the fixing frame. A control board is disposed between the display module and the housing and is capable of transmitting control signals to the LED module, enabling the LED display housing to display a specified image. When the LED display housing of the present invention is used in a scenario where the rear side of the bracket is relatively small, maintenance personnel can remove the second fixing member from the rear side of the bracket, allowing the integral structure formed by the first fixing member and the display module to be removed from the front side of the housing to access the control board or LED module for maintenance. The first fixing member and the second fixing member can be connectors with good connection stability, such as screws. This means that the LED display housing of the present invention facilitates maintenance of the LED display housing in scenarios where the rear side of the bracket is relatively small, while also ensuring a stable connection between the LED module and the housing. This allows the LED display housing to be used in scenarios where movement is required or where external forces are likely to impact the housing. Therefore, the technical solution of the present application can effectively solve the problem in the related art that the LED module is prone to displacement or even falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of an LED display box according to the present utility model is shown;

[0019] Figure 2 Shown Figure 1 A schematic cross-sectional view of a portion of the structure of an LED display box;

[0020] Figure 3 Shown Figure 2 The LED shows the enlarged view of the A part of the box;

[0021] Figure 4 Shown Figure 2 The LED display shows the enlarged view of the B part of the box;

[0022] Figure 5 Shown Figure 1 A schematic cross-sectional view of a portion of the structure of an LED display box;

[0023] Figure 6 Shown Figure 1 Schematic diagram of the exploded structure of the LED display box;

[0024] Figure 7 Shown Figure 1 Schematic diagram of the exploded structure of the LED display box;

[0025] Figure 8 Shown Figure 7 An enlarged view of the LED display at position C of the box.

[0026] The above drawings include the following reference numerals:

[0027] 10. Display module; 11. Fixing frame; 111. Outer frame; 112. Support beam; 113. Support beam; 114. Mounting ring groove; 115. Leveling boss; 12. LED module; 13. Conductive sealing ring;

[0028] 20. First fixing member;

[0029] 30. Box;

[0030] 40. Second fixing member;

[0031] 50. Control board; 51. Adapter board; 52. Control board;

[0032] 61. First positioning member; 62. Second positioning member; 621. Fastening screw; 622. Magnet;

[0033] 70. Leveling column;

[0034] 80. Leveling piece; 81. First section; 811. First connecting screw hole; 82. Second section; 821. Second connecting screw hole. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0038] like Figure 1 、 Figure 6 and Figure 7 As shown, the present application provides an LED display box. An embodiment of the LED display box of the present application includes: a display module 10, a first fixing member 20, a box body 30, a second fixing member 40, and a control board 50. The display module 10 includes a fixing frame 11 and a plurality of LED modules 12, and the plurality of LED modules 12 are arranged in an array on the front side of the fixing frame 11; the first fixing member 20 is provided from back to front through the fixing frame 11 and the LED modules 12 to fix the LED modules 12 on the fixing frame 11; the box body 30 is supported on the rear side of the display module 10; the second fixing member 40 is provided from back to front through the box body 30 and the fixing frame 11 to fix the display module 10 on the box body 30; and the control board 50 is provided between the display module 10 and the box body 30.

[0039] Applying the technical solution of this embodiment, the first fixing member 20 is passed through the fixing frame 11 and the LED module 12 from back to front to fix the LED module 12 on the fixing frame 11, so that the fixing frame 11 and the LED module 12 form an integral structure, and then the integral structure is fixed to the box 30 by the second fixing member 40 passing through the box 30 and the fixing frame 11 from back to front. The control board 50 is arranged between the display module 10 and the box 30 and can transmit control signals to the LED module 12, so that the LED display box can display the specified picture. When the LED display box of this embodiment is used in a scene where the space behind the bracket is small, the maintenance personnel can remove the second fixing member 40 from the rear side of the bracket, so that the integral structure formed by the first fixing member 20 and the display module 10 can be removed from the front side of the box 30 to maintain the control board 50 or the LED module 12. Among them, the first fixing member 20 and the second fixing member 40 can use connectors with good connection stability such as screws. In other words, the LED display cabinet of this embodiment facilitates maintenance of the LED display cabinet even in relatively small spaces behind the bracket, while also ensuring a stable connection between the LED module 12 and the cabinet 30. This allows the LED display cabinet to be used in situations where it needs to be moved or is susceptible to external impact. Therefore, the technical solution of this embodiment effectively solves the problem of LED modules being easily displaced or even falling in related technologies.

[0040] Specifically, in this embodiment, the first fixing member 20 and the second fixing member 40 are screws extending from the back to the front, ensuring that the LED module 12 is stably mounted on the fixing frame 11 and the display module 10 is stably mounted on the housing 30. The LED display housing of this embodiment offers the advantages of simple maintenance and convenient disassembly. Furthermore, the entire LED display housing is connected using screws, providing a strong and reliable structure that can withstand vibrations during transportation, and the LED module 12 will not become loose or misaligned.

[0041] In addition, for LED display cabinets with the same cabinet 30 size but different LED modules 12 sizes, they can be assembled by replacing only the display module 10 without replacing the cabinet 30, thereby making the cabinet 30 compatible with LED modules 12 of different specifications.

[0042] like Figure 7 As shown, the LED display box further includes a first positioning member 61 provided on the fixing frame 11 and a second positioning member 62 provided on the box body 30. The first positioning member 61 and the second positioning member 62 are magnetically engaged. The first positioning member 61 and the second positioning member 62 are magnetically engaged, so that when the display module 10 and the box body 30 are installed, the two can be initially positioned, thereby facilitating the subsequent operation of connecting the box body 30 and the display module 10 via the second fixing member 40.

[0043] Among them, the first positioning member 61 is an iron screw, and the second positioning member 62 includes a fastening screw 621 and a magnet 622. The fastening screw 621 is passed through the annular magnet 622 and fixes the magnet 622 on the box body 30. When the display module 10 is close to the box body 30, the iron screw and the magnet 622 are magnetically attracted to achieve the initial positioning of the box body 30 and the display module 10, which facilitates installation and prevents falling off.

[0044] like Figure 6 and Figure 7 As shown, the control board 50 includes multiple adapter boards 51 fixed to the fixing frame 11 and plugged into the LED modules 12, and a control board 52 mounted on the housing 30. The adapter boards 51 plug into and mate with the control board 52. Specifically, in this embodiment, multiple LED modules 12 are arranged in an array on the front side of the fixing frame 11. By providing multiple adapter boards 51, each LED module 12 is electrically connected to the control board 52, achieving smooth transmission of control signals.

[0045] like Figure 7 and Figure 8 As shown, the fixing frame 11 includes an outer frame 111 and a plurality of supporting crossbeams 112 and a plurality of supporting vertical beams 113 disposed within the outer frame 111. The outer frame 111, the plurality of supporting crossbeams 112, and the plurality of supporting vertical beams 113 surround and form a plurality of mounting frames corresponding one to one with the plurality of LED modules 12. Providing the fixing frame 11 with a frame structure including the plurality of supporting crossbeams 112 and the plurality of supporting vertical beams 113 ensures effective support for the LED modules 12 while reducing the material usage of the fixing frame 11 and saving costs. Furthermore, each frame structure is hollow, facilitating plug-in connection between the LED modules 12 and the corresponding adapter plates 51.

[0046] like Figures 2 to 4 、 Figure 7 and Figure 8 As shown, the display module 10 also includes a plurality of conductive sealing rings 13 corresponding one to each of the plurality of mounting frames. Each conductive sealing ring 13 is wound around the front surface of the mounting frame and abuts against a corresponding LED module 12. The provision of the conductive sealing rings 13 provides electromagnetic shielding, thereby preventing electromagnetic interference from affecting the normal operation of the LED module 12, improving signal quality within the LED display cabinet, and meeting EMC (electromagnetic compatibility) protection requirements.

[0047] like Figures 2 to 4 、 Figure 7 and Figure 8As shown, the conductive sealing ring 13 has a ring-shaped cross-section. That is, the conductive sealing ring 13 is hollow, which allows it to deform to a certain extent. When the LED module 12 is mounted on the fixing frame 11, the conductive sealing ring 13 is squeezed between the LED module 12 and the fixing frame 11 and tightly fits with both the LED module 12 and the fixing frame 11, ensuring electromagnetic shielding effect.

[0048] Specifically, in this embodiment, the conductive sealing ring 13 is an aluminum silver-plated conductive sealing strip to improve sealing and conductivity.

[0049] Unused exposed holes in the housing 30 (e.g., unused wiring holes) can be sealed with conductive rubber. To further enhance the electromagnetic shielding performance of the LED display housing, a conductive sealing strip with an adhesive backing can be adhered to the inner sidewall of the housing 30. A boss structure is provided on the rear surface of the mounting bracket 11, pressing against the inner side of the conductive sealing strip to improve the sealing of the LED display housing. Specifically, in this embodiment, both the housing 30 and the mounting bracket 11 are made of 6061 aluminum alloy.

[0050] like Figure 7 and Figure 8 As shown, the mounting frame is provided with a mounting groove 114, and the conductive sealing ring 13 is disposed within the mounting groove 114. When assembling the display module 10, the conductive sealing ring 13 can be installed within the mounting groove 114 before the LED module 12 is mounted on the fixing frame 11. The provision of the mounting groove 114 allows for pre-positioning of the conductive sealing ring 13 and the fixing frame 11, facilitating assembly of the display module 10.

[0051] In this embodiment, the LED module 12 selects a COB lamp board or a GOB lamp board to protect the lamp beads from bumps, scratches, etc. Figure 6 As shown, the LED modules 12 are arranged in a 3×4 array on the front side of the fixing frame 11 .

[0052] In order to facilitate the assembly between the box body 30 and the display module 10, a positioning pin can be set on the box body 30, and a corresponding positioning hole can be set on the fixing frame 11. The alignment between the positioning pin and the positioning hole can achieve pre-positioning between the box body 30 and the display module 10, which facilitates the subsequent operation of connecting the box body 30 and the display module 10 using the second fixing member 40.

[0053] like Figure 5As shown, a leveling boss 115 is provided on the rear surface of the fixing frame 11, and the LED display box also includes a leveling column 70 that is adjustably inserted into the box 30 from back to front, and the front surface of the leveling column 70 abuts against the leveling boss 115. When the display surface of the LED display box is uneven, the staff can adjust the position of the leveling column 70 in the thickness direction of the LED display box, thereby causing the leveling column 70 to push forward or retreat, thereby adjusting the position of the display surface at the corresponding position. Preferably, there are multiple leveling bosses 115 and leveling columns 70, and the multiple leveling bosses 115 and the multiple leveling columns 70 are provided in a one-to-one correspondence, with each leveling boss 115 being provided at the intersection of the corners of the fixing frame 11 corresponding to the four LED modules 12. The number of second fixing members 40 is the same as the number of leveling bosses 115 and is provided in a one-to-one correspondence, with each second fixing member 40 being provided on the box 30 and the corresponding leveling boss 115 from back to front.

[0054] By providing the leveling boss 115 and the leveling column 70 , the flatness of the display surface formed by the multiple LED modules on a single LED display box can be ensured.

[0055] like Figures 1 to 3 As shown, the LED display box further includes a leveling piece 80 passing through the side wall of the box 30. The setting of the leveling piece 80 can adjust the flatness of the display surface formed by installing multiple LED display boxes together.

[0056] like Figure 2 and Figure 3 As shown, the leveling piece 80 includes a first section 81 located inside the housing 30 and a second section 82 located outside the housing 30. The rear surface of the first section 81 protrudes rearward from the rear surface of the second section 82. The first section 81 is provided with a first connecting screw hole 811, and the second section 82 is provided with a second connecting screw hole 821. The rear surface of the first section 81 is aligned with the front surface of the housing 30 of the corresponding LED display housing, while the rear surface of the second section 82 is spaced apart from the front surface of the housing 30 of the adjacent LED display housing. By adjusting the size of this space, the front surfaces of two adjacent LED display housings can be made flush. Specifically, the first section 81 is provided with a first connecting screw hole 811, and the first section 81 is connected to the housing 30 via screws extending from front to back through the first connecting screw hole 811 and the housing 30. The second section 82 is provided with a second connecting screw hole 821, and the second section 82 is connected to an adjacent housing 30 via screws extending from front to back through the second connecting screw hole 821 and the adjacent housing 30. If there is a step between two adjacent LED display housings, the step can be eliminated by adjusting the position of the screws provided in the second connecting screw hole 821 in the front-to-back direction, thereby achieving leveling of the two adjacent LED display housings.

[0057] The present application also provides an LED display device. Embodiments of the LED display device include a bracket and an LED display housing disposed on the bracket, wherein the LED display housing is the aforementioned LED display housing. The aforementioned LED display housing can effectively resolve the problem of LED modules being prone to displacement or even falling in the related art. The LED display device having the aforementioned LED display housing also has the aforementioned advantages.

[0058] The LED display device further includes box fixing screws, which are arranged from front to back through the box 30 and the bracket to fix the LED display box on the bracket.

[0059] Tightening screws penetrating the side walls of two adjacent boxes 30 may be further provided between the LED display boxes to adjust the size of the seam between the LED display boxes so as to achieve a better display effect of the LED display device.

[0060] like Figure 6 As shown, the LED display box of this embodiment is mainly composed of a display module 10, a control board 50 and a box 30. The assembly process of the LED display box of this embodiment is described below:

[0061] The positioning pins are mounted on the box body 30 by using the positioning pin fixing screws, the magnets 622 are mounted on the box body 30 by using the fastening screws 621 , and the control board 52 is mounted on the box body 30 .

[0062] Then install the box body fixing screws from the front of the box body 30 to the rear to install the box body 30 on the bracket.

[0063] When deviation occurs in the X direction (i.e., the length direction of the LED module 12) or the Y direction (i.e., the width direction of the LED module 12) during the splicing process of multiple boxes 30, loosen the box fixing screws and adjust the seams between the boxes 30 and tighten the tightening screws.

[0064] When a discontinuity occurs in the Z direction (i.e., the thickness direction of the LED module 12) during the splicing process of multiple boxes 30, loosen the box fixing screws and the tightening screws, and adjust the screws in the second connecting screw holes 821 so that the two adjacent boxes 30 are set flush. After the adjustment is completed, tighten the box fixing screws and the tightening screws.

[0065] Connect the power and signal cables.

[0066] To install the display module 10, first install the LED module 12 on the fixing frame 11 and fix the LED module 12 on the fixing frame 11 by tightening the first fixing member 20. Then install the adapter plate 51 and then install the iron screw (i.e., the first positioning member 61) on the fixing frame 11.

[0067] Align the positioning hole on the display module 10 with the positioning pin on the box 30. The magnet 622 will attract the iron screw. At this time, the display module 10 will not fall off the box 30. Then install the second fixing member 40 on the back of the box 30 to fix the display module 10 on the box 30.

[0068] When maintenance is required on an LED display device, the fault location is first determined. Common fault locations are the LED module 12, adapter board 51, control board 52, and wiring. The LED module 12 and adapter board 51 are connected via floating plug-ins, while the adapter board 51 and control board 52 are also connected via floating plug-ins. The control boards 52 in adjacent housings 30 are connected via wiring.

[0069] If the LED module 12 or the adapter board 51 fails, the second fixing member 40 is removed from the back of the box 30, the display module 10 is removed, and the failed component is replaced and then reinstalled.

[0070] If the control board 52 or the wires are faulty, similarly, the second fixing member 40 is removed from the back of the box 30 , the display module 10 is removed, and the faulty components are replaced and then reinstalled.

[0071] The above operation realizes the disassembly of only the display module 10 without disassembly of the box body 30 , and therefore, there is no need to re-perform operations such as adjustment, which has the advantages of a simple maintenance process and reliable connection.

[0072] Since the LED display box and LED display device of this embodiment are suitable for scenes with small spaces, are easy to disassemble and maintain, have electromagnetic shielding functions, and are able to prevent vibration and impact, they can be used in military scenes.

[0073] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0074] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0075] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An LED display box, characterized in that: include: A display module (10) comprises a fixing frame (11) and a plurality of LED modules (12), wherein the plurality of LED modules (12) are arranged in an array on the front side of the fixing frame (11); A first fixing member (20) is provided through the fixing frame (11) and the LED module (12) from back to front to fix the LED module (12) on the fixing frame (11); a box (30) supported on the rear side of the display module (10); A second fixing member (40) is provided from back to front through the box (30) and the fixing frame (11) to fix the display module (10) on the box (30); A control board (50) is arranged between the display module (10) and the box (30).

2. The LED display box according to claim 1, characterized in that: The LED display box further comprises a first positioning member (61) arranged on the fixing frame (11) and a second positioning member (62) arranged on the box (30), wherein the first positioning member (61) and the second positioning member (62) are magnetically coupled.

3. The LED display box according to claim 1, characterized in that: The control board card (50) comprises a plurality of adapter boards (51) fixed on the fixing frame (11) and plugged into the LED module (12), and a control board (52) arranged on the box (30), wherein the adapter boards (51) are plugged into the control board (52).

4. The LED display box according to any one of claims 1 to 3, characterized in that: The fixing frame (11) comprises an outer frame (111) and a plurality of supporting cross beams (112) and a plurality of supporting vertical beams (113) arranged in the outer frame (111); the outer frame (111), the plurality of supporting cross beams (112) and the plurality of supporting vertical beams (113) are arranged to form a plurality of mounting frames corresponding one to one to the plurality of LED modules (12).

5. The LED display box according to claim 4, characterized in that: The display module (10) further comprises a plurality of conductive sealing rings (13) corresponding one-to-one to the plurality of mounting frames, each of the conductive sealing rings (13) being wound around the front surface of the mounting frame and abutting against the corresponding LED module (12).

6. The LED display box according to claim 5, characterized in that: The cross section of the conductive sealing ring (13) is an annular structure; and / or, A mounting ring groove (114) is provided on the mounting frame, and the conductive sealing ring (13) is arranged in the mounting ring groove (114).

7. The LED display box according to any one of claims 1 to 3, characterized in that: A leveling boss (115) is provided on the rear surface of the fixing frame (11), and the LED display box further comprises a leveling column (70) adjustable from the rear to the front and passing through the box (30), wherein the front surface of the leveling column (70) is in abutment with the leveling boss (115).

8. The LED display box according to any one of claims 1 to 3, characterized in that: The LED display box further comprises a leveling piece (80) passing through the side wall of the box (30).

9. The LED display box according to claim 8, characterized in that: The leveling piece (80) includes a first section (81) located inside the box body (30) and a second section (82) located outside the box body (30), wherein the rear surface of the first section (81) protrudes rearward from the rear surface of the second section (82), the first section (81) is provided with a first connecting screw hole (811), and the second section (82) is provided with a second connecting screw hole (821).

10. An LED display device, comprising a bracket and an LED display box arranged on the bracket, characterized in that: The LED display box is the LED display box according to any one of claims 1 to 9.

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