LED display screen

Abstract

The utility model relates to the technical field of display screens, in particular to an LED display screen which comprises a shell, a lamp bead mounting plate is arranged in the shell, a plurality of mounting grooves are formed in the inner side of the lamp bead mounting plate, a plurality of vent holes are formed in the inner side of the lamp bead mounting plate, and the vent holes are communicated with the mounting grooves located in the same row. An air injection assembly is arranged on the outer side of the shell; the air injection assembly comprises a micro air pump fixedly connected with the outer side of the shell, and air injection pipes are fixedly connected to the two output ends of the micro air pump. According to the drying device, the movably-arranged lamp bead mounting plate moves to the position where the gas spraying holes in the gas spraying pipe are aligned with the corresponding vent holes, gas is sprayed out of the gas spraying holes through the gas spraying pipe by controlling the micro gas pump, the gas is sprayed into the vent holes and the mounting grooves, and the vent holes and the mounting grooves are dried; and the ventilation holes and the mounting grooves are kept dry, and damage to the lamp beads caused by water vapor is reduced.

Description

Technical Field

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

[0002] LED display modules generally include lamp boards (lamp bead mounting plates) and lamp beads for mounting lamp beads. LED display screen modules are one of the main components of finished LED display screens and are responsible for display functions. In traditional LED display structures, LED display screen modules are mounted inside LED display screens, and the lamp bead mounting plates on the LED display screen modules are also located inside the display screen. The lamp bead mounting positions on the lamp bead mounting plates are generally sealed.

[0003] The existing authorized patent number is CN219202661U. The LED display screen includes a lamp bead mounting board and a protective glass mounted on the front of the lamp bead mounting board. A plurality of evenly arranged LED lamp beads are installed on the side of the lamp bead mounting board facing the protective glass. A pair of left-right symmetrical handle assemblies are provided on the back of the lamp bead mounting board. The handle assembly includes two protrusions fixedly connected to the lamp bead mounting board. The present application removes the handle from the card plate by rotating the handle. The user can remove the lamp bead mounting board from the housing through the two handles, which is relatively convenient. The bolts threaded at the upper and lower ends of the handle are removed to facilitate the user to replace the handle.

[0004] In response to the above-mentioned related technologies, the inventor believes that when the above-mentioned existing lamp bead mounting plate is installed and used, humid air from the outside will penetrate into the shell of the display screen, and the moisture in the air will further penetrate into the installation part of the lamp beads on the lamp bead mounting plate, causing corrosion or short circuit to the lamp beads. Therefore, the utility model provides an LED display screen. Utility Model Content

[0005] The purpose of this application is to provide an LED display screen to solve the problem raised in the above background technology that moisture in the air will further penetrate into the installation part of the lamp beads on the lamp bead mounting board, causing corrosion or short circuit to the lamp beads.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an LED display screen, comprising a shell, a lamp bead mounting plate provided in the shell, a plurality of mounting grooves provided on the inner side of the lamp bead mounting plate, a plurality of ventilation holes provided on the inner side of the lamp bead mounting plate, the ventilation holes being connected to the plurality of mounting grooves located in the same row, and an injection assembly provided on the outer side of the shell; the injection assembly comprises a micro air pump fixedly connected to the outer side of the shell, both output ends of the micro air pump are fixedly connected to an injection tube, and a plurality of injection holes adapted to the ventilation holes are provided on the outer side of the injection tube.

[0007] Preferably, both sides of the inner wall of the shell are fixedly connected with a first limit block that is adapted to the lamp bead mounting plate, the side of the first limit block is fixedly connected with a fixing plate, the outer side of the first limit block is fixedly connected with a second limit block, and a sealing component is provided on the side of the fixing plate.

[0008] Preferably, the blocking assembly includes a block fixedly connected to the side of the fixing plate, the block is adapted to the vent hole, and a waterproof ring is fixedly connected to the outer side of the block.

[0009] Preferably, a protective glass is provided on the outer side of the shell, and a lamp bead is provided in the installation groove.

[0010] Preferably, a baffle is fixedly connected to the outer side of the shell, a rear shell is installed on the outer side of the shell, a plurality of bolts are provided on the outer side of the shell, and threaded holes adapted to the bolts are provided on the inner sides of the shell and the rear shell.

[0011] Preferably, a connecting block is fixedly connected to the side surface of the lamp bead mounting plate, an empty slot is provided on the inner side of the connecting block, and a rotating plate is rotatably connected to the side surface of the inner wall of the empty slot.

[0012] Preferably, a screw is rotatably connected to the side surface of the inner wall of the shell, the screw is threadedly connected to the rotating plate, and one end of the screw is detachably connected to a fixing block.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] 1. In the utility model, the movably arranged lamp bead mounting plate is moved to a position where the jet holes on the jet tube are aligned with the corresponding vent holes. By controlling the micro air pump, gas is ejected from the jet holes through the jet tube, and the gas is sprayed into the vent holes and the mounting grooves, thereby drying the vent holes and the mounting grooves, keeping them dry, and reducing damage to the lamp beads caused by moisture.

[0015] 2. In the present invention, the arrangement of the rotating plate, the limiting ring and the guide rail prevents the rotating ring from being offset during the rotation process, and the connection between the screw and the rotating plate facilitates the lifting and lowering of the rotating plate and the connecting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1This is a schematic diagram of the axial structure of the utility model from a first perspective;

[0018] Figure 2 This is a schematic diagram of the axial structure from a second viewing angle of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the lamp bead mounting plate and the fixing plate in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the installation groove and the vent hole in the utility model.

[0021] In the figure: 1. Outer shell; 2. Back shell; 3. Micro air pump; 4. Jet tube; 5. Baffle; 6. Bolt; 7. Lamp bead mounting plate; 8. Protective glass; 9. Fixing plate; 10. Waterproof ring; 11. Block; 12. First limit block; 13. Second limit block; 14. Mounting slot; 15. Vent; 16. Lamp bead; 17. Connecting block; 18. Screw; 19. Rotating plate; 20. Fixing block; 21. Jet hole. DETAILED DESCRIPTION

[0022] 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 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 making creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Example 1: Reference Figure 1-4The LED display shown in the figure includes a shell 1, a humidity sensor is provided in the shell 1, a lamp bead mounting plate 7 is provided in the shell 1, a plurality of mounting grooves 14 are provided on the inner side of the lamp bead mounting plate 7, a plurality of ventilation holes 15 are provided on the inner side of the lamp bead mounting plate 7, the ventilation holes 15 are connected to the plurality of mounting grooves 14 located in the same row, so that the air injected through the ventilation holes 15 can dry the mounting grooves 14, and an injection assembly is provided on the outer side of the shell 1; the injection assembly includes a micro air pump 3 fixedly connected to the outer side of the shell 1, and the two output ends of the micro air pump 3 are fixedly connected to the injection tube 4, and the outer side of the injection tube 4 is provided with a plurality of injection holes 21 adapted to the ventilation holes 15, and both sides of the inner wall of the shell 1 are fixedly connected to the first nozzle 21 adapted to the lamp bead mounting plate 7. A limit block 12, a first limit block 12 is fixedly connected to a fixing plate 9 on the side thereof, a second limit block 13 is fixedly connected to the outside of the first limit block 12, a sealing assembly is provided on the side of the fixing plate 9, the sealing assembly includes a block 11 fixedly connected to the side of the fixing plate 9, the block 11 is adapted to the vent 15, a waterproof ring 10 is fixedly connected to the outside of the block 11, to further improve the sealing effect of the vent 15, a protective glass 8 is provided on the outside of the outer shell 1, a lamp bead 16 is provided in the mounting groove 14, a baffle 5 is fixedly connected to the outside of the outer shell 1, a rear shell 2 is installed on the outside of the outer shell 1, a plurality of bolts 6 are provided on the outside of the outer shell 1, and threaded holes adapted to the bolts 6 are provided on the inner sides of the outer shell 1 and the rear shell 2, to facilitate installation and disassembly of the rear shell 2.

[0025] In this embodiment, the screw 18 is rotated by twisting the fixing block 20, which drives the rotating plate 19, the connecting block 17 and the lamp bead mounting plate 7 to move toward the protective glass 8. The multiple mounting grooves 14 are blocked by the protective glass 8 and the fixing plates 9 provided on both sides, so that the multiple mounting grooves 14 and the vents 15 are in a sealed state. The provision of the waterproof ring 10 further improves the sealing of the vents 15, reduces the infiltration of water vapor into the vents 15 and the mounting grooves 14, and reduces the damage to the lamp beads 16. The humidity in the housing 1 is detected by the humidity sensor. When the humidity is higher than the standard value, the fixing block 20 is twisted in the opposite direction to move the lamp bead mounting plate 7, so that the air jet holes 21 on the air jet pipe 4 are aligned with the corresponding air jet holes 15. The micro air pump 3 is controlled to spray gas through the air jet holes 21 through the air jet pipe 4 into the air jet holes 15 and the mounting grooves 14, thereby drying the air jet holes 15 and the mounting grooves 14, keeping the air jet holes 15 and the mounting grooves 14 dry, and reducing the damage to the lamp beads 16 caused by water vapor.

[0026] Example 2: Reference Figure 1-4Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a connecting block 17 is fixedly connected to the side of the lamp bead mounting plate 7, an empty groove is opened on the inner side of the connecting block 17, a rotating plate 19 is rotatably connected to the side of the inner wall of the empty groove, a screw 18 is rotatably connected to the side of the inner wall of the shell 1, the screw 18 is threadedly connected to the rotating plate 19, and one end of the screw 18 is detachably connected to a fixed block 20.

[0027] In this embodiment, a limiting ring is provided on the outer side of the rotating plate 19, and a guide rail compatible with the limiting ring is opened on the inner wall side of the empty groove to prevent the rotating ring 19 from being offset during the rotation process, and the connection between the screw 18 and the rotating plate 19 facilitates the lifting and lowering of the rotating plate 19 and the connecting block 17.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An LED display screen, comprising a housing (1), characterized in that: A lamp bead mounting plate (7) is arranged inside the housing (1), a plurality of mounting grooves (14) are provided on the inner side of the lamp bead mounting plate (7), a plurality of ventilation holes (15) are provided on the inner side of the lamp bead mounting plate (7), the ventilation holes (15) are connected to the plurality of mounting grooves (14) located in the same row, and an air injection assembly is arranged on the outer side of the housing (1); The jet assembly comprises a micro air pump (3) fixedly connected to the outside of the housing (1), the two output ends of the micro air pump (3) are both fixedly connected to a jet tube (4), and the outside of the jet tube (4) is provided with a plurality of jet holes (21) adapted to the vent holes (15).

2. The LED display screen according to claim 1, characterized in that: A first limit block (12) adapted to the lamp bead mounting plate (7) is fixedly connected to both sides of the inner wall of the housing (1); a fixing plate (9) is fixedly connected to the side of the first limit block (12); a second limit block (13) is fixedly connected to the outer side of the first limit block (12); and a blocking component is provided on the side of the fixing plate (9).

3. The LED display screen according to claim 2, characterized in that: The blocking assembly comprises a block (11) fixedly connected to the side of the fixing plate (9), the block (11) is adapted to the vent hole (15), and a waterproof ring (10) is fixedly connected to the outer side of the block (11).

4. The LED display screen according to claim 1, characterized in that: A protective glass (8) is arranged on the outside of the housing (1), and a lamp bead (16) is arranged in the installation groove (14).

5. The LED display screen according to claim 4, characterized in that: A baffle (5) is fixedly connected to the outer side of the outer shell (1), a rear shell (2) is mounted on the outer side of the outer shell (1), a plurality of bolts (6) are arranged on the outer side of the outer shell (1), and threaded holes matching the bolts (6) are provided on the inner sides of the outer shell (1) and the rear shell (2).

6. The LED display screen according to claim 3, characterized in that: A connecting block (17) is fixedly connected to the side of the lamp bead mounting plate (7), a hollow groove is provided on the inner side of the connecting block (17), and a rotating plate (19) is rotatably connected to the inner wall side of the hollow groove.

7. The LED display screen according to claim 6, characterized in that: A screw rod (18) is rotatably connected to the inner wall side of the housing (1), the screw rod (18) is threadedly connected to the rotating plate (19), and one end of the screw rod (18) is detachably connected to a fixing block (20).

Images