A waterproof LED screen
The design of threaded connection and triangular transmission mechanism solves the problems of stability and waterproofing of waterproof LED screens when dropped. The sealing structure between the screws and the housing avoids magnetic field interference and water rust, thus improving the overall waterproof performance of the waterproof LED screen.
Patent Information
- Application Number
- CN202522131480.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Existing waterproof LED screens are prone to separation of the bottom shell and cabinet when dropped. The magnetic assembly is unstable and may cause magnetic interference to the light panel, affecting the waterproof effect.
The design employs a threaded connection structure, using screws and a triangular transmission mechanism to achieve a stable assembly of the bottom shell and the housing. Waterproofing is achieved using transparent colloid and sealing rings. The screw nut compresses the rubber sleeve for sealing, and the triangular block and guide bevel transmit top pressure to the sealing ring to enhance the sealing performance.
This design achieves a stable connection between the bottom shell and the cabinet, avoiding magnetic field interference. The transparent colloid provides waterproof protection, and the screws at the connection with the cabinet are less likely to rust due to water contact, thus improving the practicality and waterproof effect of the waterproof LED screen.
Smart Images

Figure CN224682775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display screen technology, and in particular to a waterproof LED screen. Background Technology
[0002] An LED display screen is a flat panel display composed of small LED module panels. LED is an abbreviation for Light Emitting Diode, a display method that controls semiconductor light-emitting diodes. These diodes are made of compounds of gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), and indium (In). When electrons and holes recombine, they emit visible light, thus they can be used to make light-emitting diodes. LED displays are generally used to display various information such as text, images, video, and recorded signals.
[0003] Patent CN217821964U discloses "a waterproof LED screen, including an LED module panel, the LED module panel including a bottom shell and a lamp board, the lamp board including a PCB board and LED beads mounted on the PCB board, the PCB board being filled with a transparent adhesive layer. The beneficial effect of this utility model is that it does not adopt a structure of forming a waterproof wall on the bottom shell, but uses a transparent adhesive layer to form a waterproof sidewall, which can adapt to the requirement of thinner thickness, thereby achieving waterproofing of the LED module panel with a small dot pitch."
[0004] Regarding the aforementioned technologies, the inventors believe that the bottom shell and the housing are assembled using magnetic attraction. However, the bottom shell and the housing are not stable after magnetic assembly. When the waterproof LED screen is dropped, the bottom shell and the housing are easily separated. The magnetic force of the magnet may also cause some interference to the PCB board inside the lamp board. Therefore, improvements are needed. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing a waterproof LED screen, the specific technical solution of which is as follows: A waterproof LED screen includes an LED module panel. The LED module panel includes a bottom shell, a light panel mounted on one side of the bottom shell for display, and a housing detachably mounted on the other side of the bottom shell. The light panel is wrapped with a transparent waterproofing agent. A connecting structure is provided between the bottom shell and the housing. The connecting structure includes fixing plates fixed on both sides of the bottom shell and screws threaded between the fixing plates and the housing. A sealing ring is provided between the bottom shell and the housing for sealing. A triangular transmission mechanism is provided inside the housing for transmitting the top pressure during screw installation to the sealing ring.
[0006] By adopting the above technical solution, the rotating screw can securely assemble the bottom shell and the housing, and the screw and other components will not generate magnetic fields that interfere with the lamp panel.
[0007] Optionally, the transparent colloid extends to the side of the bottom shell near the lamp plate, and the fixing plate is movably disposed in a groove opened on the outside of the housing.
[0008] By adopting the above technical solution, the transparent colloid can provide waterproof protection for the light panel.
[0009] Optionally, the fixing plate has a mounting hole, the box body has an annular groove on the side near the bottom shell, the nut end of the screw is movably disposed in the mounting hole of the fixing plate, the screw end of the screw is threaded in the annular groove of the box body, a rubber sleeve is fixedly disposed in the mounting hole of the fixing plate, and the nut end of the screw abuts against the rubber sleeve.
[0010] By adopting the above technical solution, the screw nut will squeeze the rubber sleeve during assembly. The squeezed rubber sleeve can seal and waterproof the threaded connection between the screw and the housing.
[0011] Optionally, the triangular transmission mechanism includes a triangular block that abuts against the end of the screw, and a top pressure ring disposed on one side of the triangular block. A guide slope is provided at the outer edge of the top pressure ring, and the guide slope of the top pressure ring abuts against the slope of the triangular block. The top pressure ring is slidably disposed in the annular groove of the housing. The sealing ring is fixedly disposed on the side of the top pressure ring away from the triangular block. A limiting rod for guiding and limiting the triangular block is fixedly disposed in the annular groove of the housing.
[0012] By adopting the above technical solution, the screw will press down on the triangular block during installation. With the guidance of the guide slope, the pressure ring can transmit the pressure to the sealing ring, so that the compressed sealing ring can better seal the connection between the bottom shell and the housing.
[0013] In summary, this utility model has at least one of the following beneficial effects: 1. By rotating the screws, the bottom shell and the housing can be securely assembled without the screws or other components interfering with the light panel. When the screws are installed, they will press down on the triangular block. With the guidance of the guide bevel, the pressure ring can transmit the pressure to the sealing ring, allowing the compressed sealing ring to better seal the connection between the bottom shell and the housing. The entire process of secure assembly and pressure sealing can be completed simply by rotating the screws, making it convenient and practical.
[0014] 2. The transparent colloid provides waterproof protection for the light panel. During assembly, the screw nuts will compress the rubber sleeve. The compressed rubber sleeve can seal and waterproof the threaded connection between the screw and the housing, making it less likely for the threaded connection between the screw and the housing to come into contact with external water and rust, thus improving the practicality of the waterproof LED screen. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure and internal layout of this utility model; Figure 3 This is the utility model Figure 2 Enlarged view of the A-structure.
[0016] Explanation of reference numerals in the attached drawings: 1. Bottom shell; 2. Lamp panel; 3. Transparent colloid; 4. Housing; 5. Fixing plate; 51. Screw; 52. Mounting hole; 53. Rubber sleeve; 54. Annular groove; 6. Sealing ring; 7. Triangular block; 71. Top pressure ring; 72. Guide slope; 73. Limiting rod. Detailed Implementation
[0017] The following is in conjunction with the appendix Figure 1-3 This utility model will be described in further detail.
[0018] This utility model discloses a waterproof LED screen, see reference. Figure 1-2 The LED module panel includes a base shell 1, a light board 2 mounted on one side of the base shell 1 for display, and a housing 4 detachably mounted on the other side of the base shell 1. The light board 2 is wrapped with a transparent colloid 3 for waterproofing. The base shell 1 can support the light board 2. The light board 2 is composed of a PCB board and LED beads, which is public technology and will not be described in detail here. The housing 4 can store and hide the connection lines and control components of the light board 2. The base shell 1, the light board 2 and the housing 4 constitute the existing LED screen, which will not be described in detail here.
[0019] Reference Figure 1-2 The transparent colloid 3 extends to the side of the bottom shell 1 near the lamp panel 2. The transparent colloid 3 can provide waterproof protection for the lamp panel 2. The transparent colloid 3 is obtained by CNC machining. After the glue cures, the dimensions around it are machined by CNC to ensure the shape accuracy. This is a public technology and will not be described in detail here.
[0020] Reference Figure 2-3 A connecting structure is provided between the bottom shell 1 and the box body 4. The connecting structure includes a fixing plate 5 fixed on both sides of the bottom shell 1 and a screw 51 threaded between the fixing plate 5 and the box body 4. The fixing plate 5 is movably disposed in a groove opened on the outside of the box body 4. The box body 4 can connect to and limit the fixing plate 5 through the groove.
[0021] Reference Figure 2-3The fixing plate 5 has a mounting hole 52, and the box 4 has an annular groove 54 on the side near the bottom shell 1. The nut end of the screw 51 is movably disposed in the mounting hole 52 of the fixing plate 5, and the screw end of the screw 51 is threaded in the annular groove 54 of the box 4. By rotating the screw 51, the fixing plate 5 and the box 4 can be connected in conjunction with the mounting hole 52 and the annular groove 54, thereby achieving a stable assembly between the bottom shell 1 and the box 4.
[0022] Reference Figure 2-3 A rubber sleeve 53 is fixedly installed inside the mounting hole 52 of the fixing plate 5. The nut end of the screw 51 is fitted into the rubber sleeve 53. When the screw 51 is installed, the nut of the screw 51 will squeeze the rubber sleeve 53 as it is rotated. The squeezed rubber sleeve 53 can seal and waterproof the threaded connection between the screw 51 and the housing 4, making it difficult for the threaded connection between the screw 51 and the housing 4 to come into contact with external water and rust.
[0023] Reference Figure 2-3 A sealing ring 6 is provided between the bottom shell 1 and the housing 4 for sealing. The housing 4 is provided with a triangular transmission mechanism for transmitting the top pressure of the screw 51 to the sealing ring 6 during installation. The triangular transmission mechanism includes a triangular block 7 that abuts against the screw end of the screw 51 and a top pressure ring 71 located on one side of the triangular block 7. A guide slope 72 is provided on the outer edge of the top pressure ring 71. The guide slope 72 of the top pressure ring 71 abuts against the slope of the triangular block 7. The top pressure ring 71 is slidably located in the annular groove 54 of the housing 4. The sealing ring 6 is fixedly located on the side of the top pressure ring 71 away from the triangular block 7. The top pressure ring 71 can support and limit the sealing ring 6. The annular groove 54 of the housing 4 can limit the top pressure ring 71.
[0024] When the screw 51 is rotated, the screw 51 will move laterally due to the threaded connection of the annular groove 54. After the screw 51 moves laterally, it will press against the triangular block 7 on one side. Under the guidance of the guide slope 72, the triangular block 7 will press against the pressure ring 71, so that the pressure ring 71 can transmit the pressure to the sealing ring 6, so that the compressed sealing ring 6 can better seal and waterproof the connection between the bottom shell 1 and the box 4.
[0025] Reference Figure 3 A limiting rod 73 for guiding and limiting the triangular block 7 is fixedly installed in the annular groove 54 of the housing 4. The triangular block 7 is slidably disposed on the outer wall of the limiting rod 73. The two ends of the limiting rod 73 are respectively fixed on both sides of the annular groove 54 of the housing 4. The limiting rod 73 can guide and limit the triangular block 7, so that the triangular block 7 can only move laterally, which facilitates the screw 51 after rotation to press the triangular block 7.
[0026] The implementation principle of a waterproof LED screen according to an embodiment of this utility model is as follows: During installation, people can close the bottom shell 1 and the box body 4, so that the fixing plate 5 on one side of the bottom shell 1 can enter the groove of the box body 4. Then, the screw 51 is inserted into the mounting hole 52 and rotated. After rotation, one end of the screw 51 will enter the annular groove 54 of the box body 4 to connect the fixing plate 5 and the box body 4, thereby making the bottom shell 1 and the box body 4 securely assembled. When the screw 51 is rotated, the screw 51 will move laterally due to the threaded connection of the annular groove 54. After the screw 51 moves laterally, it will press against the triangular block 7 on one side. Under the guidance of the guide slope 72, the triangular block 7 will press the pressing ring 71 towards the sealing ring 6. The pressed pressing ring 71 can transmit the pressing force to the sealing ring 6. At this time, the sealing ring 6 under compression can better seal and waterproof the connection between the bottom shell 1 and the housing 4. The transparent colloid 3 can provide waterproof protection for the lamp board 2.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A waterproof LED screen, comprising an LED module panel, the LED module panel comprising a base shell (1), a lamp board (2) mounted on one side of the base shell (1) for display, and a housing (4) detachably mounted on the other side of the base shell (1), wherein the lamp board (2) is wrapped with a transparent colloid (3) for waterproofing, characterized in that: A connection structure is provided between the bottom shell (1) and the box body (4). The connection structure includes a fixing plate (5) fixed on both sides of the bottom shell (1) and a screw (51) threaded between the fixing plate (5) and the box body (4). A sealing ring (6) for sealing is provided between the bottom shell (1) and the box body (4). A triangular transmission mechanism is provided inside the box body (4) for transmitting the top pressure of the screw (51) to the sealing ring (6) when it is installed.
2. The waterproof LED screen according to claim 1, characterized in that: The transparent colloid (3) extends to the side of the bottom shell (1) near the lamp plate (2), and the fixing plate (5) is movably disposed in the groove opened on the outside of the box (4).
3. A waterproof LED screen according to claim 1, characterized in that: The fixing plate (5) has an installation hole (52) and the box body (4) has an annular groove (54) on the side near the bottom shell (1). The nut end of the screw (51) is movably disposed in the installation hole (52) of the fixing plate (5) and the screw end of the screw (51) is threaded in the annular groove (54) of the box body (4).
4. A waterproof LED screen according to claim 3, characterized in that: A rubber sleeve (53) is fixedly installed in the mounting hole (52) of the fixing plate (5), and the nut end of the screw (51) is engaged with the rubber sleeve (53).
5. A waterproof LED screen according to claim 4, characterized in that: The triangular transmission mechanism includes a triangular block (7) that abuts against the screw end of the screw (51) and a top pressure ring (71) on one side of the triangular block (7). A guide slope (72) is provided at the outer edge of the top pressure ring (71), and the guide slope (72) of the top pressure ring (71) abuts against the slope of the triangular block (7).
6. A waterproof LED screen according to claim 5, characterized in that: The top pressure ring (71) is slidably disposed in the annular groove (54) of the housing (4), and the sealing ring (6) is fixedly disposed on the side of the top pressure ring (71) away from the triangular block (7).
7. A waterproof LED screen according to claim 6, characterized in that: The annular groove (54) of the box (4) is fixedly provided with a limiting rod (73) for guiding and limiting the triangular block (7).
Citation Information
Patent Citations
Waterproof LED screen
CN217821964U