An outdoor waterproof LED display structure

Abstract

This invention discloses an outdoor waterproof LED display structure, relating to the field of LED display technology. It includes a frame, a backplate, an LED display, a reflective chamber, and a reflective coating. The reflective chamber has an flared opening on the side away from the backplate, and the LED display screen is located within the reflective chamber's inner cavity. A mounting chamber is fixed to the outer wall of the reflective chamber on the side away from the backplate, and its inner cavity communicates with the reflective chamber's inner cavity. A transparent plate is mounted on the outer wall of the mounting chamber on the side away from the reflective chamber. In this invention, the reflective coating within the reflective chamber reflects the light generated by the LED display, causing the light to be reflected onto the LED display surface, reducing dark areas. Furthermore, the reflective chamber provides some protection against rain, achieving a waterproof effect. Additionally, the transparent plate reduces the impact of ultraviolet radiation on the LED display when sunlight passes through it, thus slowing down the aging of the LED display.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, specifically to a structure for an outdoor waterproof LED display. Background Technology

[0002] An LED (Light Emitting Diode) display screen is a display screen composed of a large number of light-emitting diodes (LEDs) capable of displaying text, images, and videos. LED displays are widely used in advertising, information display, sports venues, traffic signs, stage rentals, and television studios, among other fields.

[0003] Existing outdoor LED displays are typically exposed to the elements, which accelerates their aging process. Furthermore, large LED displays are usually constructed by splicing together multiple smaller LED displays, which may result in dark areas that affect the display quality. Therefore, it is necessary to design an outdoor LED display that can slow down the aging process caused by sunlight exposure and reduce the appearance of dark areas. Summary of the Invention

[0004] The purpose of this invention is to provide an outdoor waterproof LED display structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An outdoor waterproof LED display structure includes a frame and a back plate mounted on the upper end of the frame, wherein an LED display is mounted on the surface of the back plate, and further includes:

[0007] A reflective chamber is detachably connected to the outer wall of the back panel. The inner wall of the reflective chamber is provided with a reflective coating. The side of the reflective chamber away from the back panel is flared. The screen of the LED display is located in the inner cavity of the reflective chamber.

[0008] A mounting chamber is fixed to the outer wall of the reflector chamber on the side away from the back plate, and the inner cavity of the mounting chamber is in communication with the inner cavity of the reflector chamber;

[0009] A transparent panel installed on the outer wall of the mounting chamber on the side away from the reflective chamber.

[0010] Through the above technical solution, the reflective coating inside the reflective chamber reflects the light generated by the LED display screen, so that the light is reflected onto the surface of the LED display screen, reducing the dark areas of the LED display screen. In addition, the reflective chamber can, to a certain extent, protect the LED display screen from rain and achieve a waterproof effect. Furthermore, the transparent plate can reduce the impact of ultraviolet rays on the LED display screen when sunlight passes through it, thus delaying the aging of the LED display screen.

[0011] Furthermore, the corners of the inner cavity of the reflective chamber have a smooth transition with the inner wall of the reflective chamber.

[0012] The above technical solution enables the reflective coating inside the reflective chamber to reflect light better, further reducing the dark areas on the surface of the LED display screen.

[0013] Furthermore, the outer wall of the installation compartment is provided with multiple heat dissipation grooves.

[0014] The above technical solution allows the heat dissipation grooves to dissipate heat from the LED display screen during operation.

[0015] Furthermore, the outer wall of the installation chamber is provided with a lifting unit, which is used to drive the transparent plate to move vertically, thereby closing or opening the opening of the installation chamber.

[0016] Through the above technical solution, the lifting unit drives the transparent plate to move upward, so that the transparent plate can close the opening of the installation chamber. In sunny or sunny weather, the transparent plate can delay the aging of the LED display screen. In rainy or foggy weather, the transparent plate moves downward, leaving the opening of the installation chamber open. This allows the light from the LED display screen to be emitted directly from the opening of the installation chamber, avoiding diffuse reflection of the light from the LED display screen when passing through the rain or dew on the surface of the transparent plate, which would affect the normal use of the LED display screen.

[0017] Furthermore, the lifting unit includes a drive chamber integrally formed and fixed to the outer walls of both sides of the installation chamber. The upper and lower outer walls of the drive chamber are vertically rotatably connected to a ball screw. A nut sleeve is fitted around the periphery of the ball screw. A connecting sleeve is fixedly fitted around the periphery of the nut sleeve. A retaining strip is connected around the periphery of the connecting sleeve. The outer walls of the two retaining strips on opposite sides are provided with slots for fixing and engaging the end of the transparent plate.

[0018] Through the above technical solution, the ball screw rotates and drives the nut sleeve to move vertically, which in turn causes the connecting sleeve to drive the locking strip to move up and down. The two locking strips move up and down synchronously, which in turn drives the transparent plate to move vertically, thereby achieving the closure or opening of the installation compartment.

[0019] Furthermore, a pulley is fixedly fitted at one end of the ball screw, and the two pulleys are connected by a V-belt drive. A servo motor is installed on the outer wall of one of the drive chambers, and the servo motor is driven by one of the ball screws.

[0020] Through the above technical solution, the motor shaft of the servo motor rotates and drives one of the ball screws to rotate. Then, through the transmission of the pulley, the other ball screw rotates synchronously. This allows the two ball screws to rotate synchronously, thereby enabling the two ball screw sleeves to move vertically synchronously.

[0021] Furthermore, the transparent plate has a brightness enhancement film on the side facing the LED display screen.

[0022] The above technical solution, by setting a brightness enhancement film, increases the intensity (i.e., brightness) of the light when it passes through the LED display screen, thereby improving the visibility of the LED display screen.

[0023] Furthermore, the connecting sleeve and the card strip are connected by a floating unit, which is used to adjust the lateral distance between the card strip and the connecting sleeve when the card strip moves vertically.

[0024] With the above technical solution, since the transparent plate has a brightening film on its surface, when the transparent plate moves, the brightening film will scratch the opening of the mounting compartment. Therefore, by setting a floating unit, the horizontal distance between the clip and the connecting sleeve is increased when the clip moves the transparent plate up and down. This ensures that the brightening film will not scratch the opening of the mounting compartment when the transparent plate moves up and down, or in other words, the area of ​​scratching between the brightening film and the opening of the mounting compartment is extremely small and can be ignored.

[0025] Furthermore, the floating unit includes a floating block that is horizontally fixed to the periphery of the connecting sleeve, the outer wall of the drive chamber is provided with an air-avoiding groove for the floating block to pass freely, and a sliding rod is horizontally fixed to the outer wall of the clip, the sliding rod slidingly passing through the floating block;

[0026] One end of the sliding rod that passes through the floating block is rotatably fitted with a ball. The upper and lower outer walls of the drive chamber are vertically fixed with a positioning rod. The positioning rod slides through the floating block, and a notch is provided at the upper end of the positioning rod. The notch is used in conjunction with the ball.

[0027] The sliding rod is also provided with an elastic abutment unit around its periphery, which imparts potential energy to the sliding rod to move toward the connecting sleeve.

[0028] With the above technical solution, when the nut sleeve drives the floating block to move downward, the ball will roll out from the notch groove. Driven by the potential energy of the elastic abutment unit, the ball will roll and connect to the surface of the positioning rod, thereby enabling the sliding rod to drive the locking strip to move away from the connecting sleeve, thus increasing the lateral distance between the locking strip and the installation compartment opening.

[0029] Furthermore, the elastic abutment unit includes a stop ring fixedly sleeved around the periphery of the sliding rod, the surface of the floating block is provided with a through groove for the stop ring to pass freely, a spring is wrapped around the periphery of the sliding rod, and the spring has an elastic abutment force on the stop ring in the direction of the connecting sleeve.

[0030] Through the above technical solution, the spring generates an elastic resisting force on the stop ring, thereby enabling the ball to roll into contact with the surface of the positioning rod or the inner wall of the notch groove when the floating block moves up and down.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. In this invention, the reflective coating inside the reflective chamber reflects the light generated by the LED display screen, so that the light is reflected onto the surface of the LED display screen, reducing the dark areas of the LED display screen. In addition, the reflective chamber can protect the LED display screen from rain and water to a certain extent, achieving a waterproof effect. Furthermore, the transparent plate can reduce the impact of ultraviolet rays on the LED display screen when sunlight passes through the transparent plate, thus delaying the aging of the LED display screen.

[0033] 2. In this invention, the lifting unit drives the transparent plate to move upward, so that the transparent plate can close the opening of the installation chamber. In sunny or sunny weather, the transparent plate can delay the aging of the LED display screen. In rainy or foggy weather, the transparent plate moves downward, so that the opening of the installation chamber is open. This allows the light from the LED display screen to be emitted directly from the opening of the installation chamber, avoiding diffuse reflection of the light from the LED display screen when passing through the rain or dew on the surface of the transparent plate, which would affect the normal use of the LED display screen.

[0034] 3. In this invention, since the transparent plate is provided with a brightening film, when the transparent plate moves, the brightening film will scratch the opening of the mounting compartment. Therefore, by setting a floating unit, the horizontal distance between the clip and the connecting sleeve is increased when the clip moves the transparent plate up and down. This ensures that the brightening film will not scratch the opening of the mounting compartment when the transparent plate moves up and down, or in other words, the area of ​​scratching between the brightening film and the opening of the mounting compartment is extremely small and can be ignored. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of an outdoor waterproof LED display screen according to the present invention;

[0036] Figure 2 for Figure 1 A schematic diagram showing the positional relationship of the frame and transparent panel omitted in the middle;

[0037] Figure 3 for Figure 2 A diagram illustrating the positional relationships from a first-person perspective.

[0038] Figure 4 for Figure 3 Enlarged schematic diagram of the local structure at point A;

[0039] Figure 5 for Figure 2 A diagram illustrating the positional relationships from a second-person perspective;

[0040] Figure 6 This is a schematic diagram showing the positional relationship of the transparent plate, connecting sleeve, and locking strip after assembly in this invention;

[0041] Figure 7 for Figure 6 Schematic diagram of the explosive decomposition of the medium structure;

[0042] Figure 8 for Figure 7 Enlarged schematic diagram of the local structure at point B;

[0043] Figure 9 This is a schematic diagram of the installation compartment in this invention;

[0044] Figure 10 This is a schematic diagram of the positioning rod in this invention.

[0045] The following are the annotations for each item in the diagram: 1. Stand; 2. Reflector chamber; 3. Mounting chamber; 4. Back plate; 5. Transparent plate; 6. Clip; 7. LED display screen; 8. Drive chamber; 9. Servo motor; 10. Positioning rod; 11. Ball screw; 12. Floating block; 13. Sliding rod; 14. Connecting sleeve; 15. Nut sleeve; 16. Stop ring; 17. Spring; 18. Ball; 19. Clearance groove; 20. Notch groove. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1-10This invention provides a technical solution: an outdoor waterproof LED display structure, including an outdoor frame 1. A vertical back plate 4 is mounted on the upper end of the frame 1 via multiple brackets. An LED display 7 is mounted on one side of the back plate 4 in the thickness direction. A reflective chamber 2 is mounted on the outer wall of the back plate 4 in the thickness direction via screws. The inner wall of the reflective chamber 2 is provided with a reflective coating (not shown in the figure). The side of the reflective chamber 2 away from the back plate 4 is flared, and the screen of the LED display 7 is located in the inner cavity of the reflective chamber 2. This allows the light generated by the LED display 7 when it is working to be reflected by the reflective coating in the reflective chamber 2, and to reflect part of the light to the surface of the LED display 7, thereby reducing the dark areas on the surface of the LED display 7. In addition, the corners of the inner cavity of the reflective chamber 2 are smoothly transitioned to the inner cavity wall of the reflective chamber 2, so that the reflective coating in the reflective chamber 2 can reflect light better, further reducing the generation of dark areas on the surface of the LED display 7.

[0048] A mounting chamber 3 is connected to the outer wall of the reflector chamber 2 on the side away from the back plate 4 by screws or rivets. The mounting chamber 3 has a U-shaped cross section, and the inner cavity of the mounting chamber 3 is in communication with the inner cavity of the reflector chamber 2. The opening size of the mounting chamber 3 is the same as the opening size of the reflector chamber 2 on the side away from the back plate 4. In addition, a drive chamber 8 is provided on the two outer walls of the mounting chamber 3 perpendicular to the thickness direction of the back plate 4. Furthermore, the drive chamber 8 can be integrally formed with the mounting chamber 3, which simplifies the assembly of the drive chamber 8 and the mounting chamber 3. In addition, the inner cavity of the drive chamber 8 is preferably not in communication with the inner cavity of the mounting chamber 3.

[0049] Bearings are installed on the top and bottom surfaces of the drive chamber 8. Ball screws 11 are mounted on the bearings on both the top and bottom surfaces, allowing the ball screws 11 to rotate vertically on the drive chamber 8. The lower ends of the two ball screws 11 extend out of the drive chamber 8 and are each fixedly fitted with a pulley. A V-belt is fitted between the two pulleys, allowing the two pulleys to drive each other through the V-belt. When one ball screw 11 rotates, the V-belt and pulley drive the other ball screw 11 to rotate synchronously. The rotation directions of the two ball screws 11 are the same. For ease of operation, a servo motor 9 is installed on the top of one of the drive chambers 8. The motor shaft of the servo motor 9 is connected to one of the ball screws 11, meaning that the rotation of the motor shaft of the servo motor 9 can drive the ball screw 11 to rotate.

[0050] A nut sleeve 15 is fitted around the periphery of the ball screw 11. The nut sleeve 15 and the ball screw 11 form a rolling helical transmission connection. That is, when the ball screw 11 rotates, the nut sleeve 15 will move along the axial direction of the ball screw 11. A connecting sleeve 14 is fixedly fitted around the periphery of the nut sleeve 15. The connecting sleeve 14 and the nut sleeve 15 will move synchronously. In addition, a floating block 12 is horizontally fixed around the periphery of the connecting sleeve 14. An air clearance groove 19 is opened on the outer wall of the drive chamber 8 away from the back plate 4 to allow the floating block 12 to move up and down freely. The floating block 12 passes through the drive chamber 8. A sliding rod 13 is horizontally inserted at one end, and the sliding rod 13 can slide freely horizontally on the floating block 12. A retaining strip 6 is vertically fixed to one end of the sliding rod 13 that extends out of the floating block 12. The outer walls of the two retaining strips 6 on opposite sides are provided with retaining grooves that span their length direction. A transparent plate 5 is installed in the retaining grooves of the two retaining strips 6. The transparent plate 5 is located on the outside of the installation chamber 3. Specifically, the transparent plate 5 can be made of glass. In addition, the transparent plate 5 can be fixedly connected to the inner wall of the retaining groove by rivets, screws or chemical bonding to ensure that the transparent plate 5 will not fall out of the retaining groove.

[0051] The dimensions of the transparent plate 5 are adapted to the opening dimensions of the mounting chamber 3. When the surface of the transparent plate 5 is in contact with the surface of the mounting chamber 3, the opening of the mounting chamber 3 can be sealed (the contact surfaces of the transparent plate 5 and the mounting chamber 3 can be sealed or not, but to prevent insects and other pests from entering the reflective chamber 2, it can be set to be sealed). In addition, the outer wall of the mounting chamber 3 is provided with multiple heat dissipation grooves, which can dissipate the heat of the LED display screen 7 during operation.

[0052] A brightness enhancement film (not shown in the figure) is provided on the side of the transparent plate 5 facing the LED display screen 7. Since the surface of the transparent plate 5 is provided with a brightness enhancement film, when the transparent plate 5 moves, the brightness enhancement film will scratch the opening of the mounting chamber 3. Therefore, in this embodiment, a ball bearing 18 is rotatably embedded at one end of the sliding rod 13 that passes through the floating block 12. The upper and lower outer walls of the drive chamber 8 are vertically fixed with a positioning rod 10. The positioning rod 10 slides through the floating block 12, and a notch 20 is opened at the upper end of the positioning rod 10. The notch 20 is used in conjunction with the ball bearing 18. A stop ring 16 is fixedly sleeved around the periphery of the sliding rod 13. A through groove is opened on the surface of the floating block 12 for the stop ring 16 to pass freely. A spring 17 is wrapped around the periphery of the sliding rod 13. The spring 17 has an elastic pushing force on the stop ring 16 in the direction of the connecting sleeve 14.

[0053] Working principle of the invention:

[0054] On a sunny day, the transparent plate 5 appears... Figure 1In this state, the transparent plate 5 can reduce the aging effect of ultraviolet rays in sunlight on the LED display screen 7. In addition, the light emitted by the LED display screen 7 is reflected by the reflective coating, so that some of the light is reflected to the surface of the LED display screen 7, thereby reducing the dark areas on the surface of the LED display screen 7. In addition, the heat generated by the LED display screen 7 during operation can be dissipated through the heat dissipation groove. Furthermore, the brightness enhancement film on the surface of the transparent plate 5 can enhance the brightness of the LED display screen 7, thereby improving the visibility of the LED display screen 7 during the day.

[0055] In rainy or foggy weather, rainwater and fog will adhere to the surface of the transparent plate 5. After the surface of the transparent plate 5 is covered with rainwater and fog, due to the generation of diffuse reflection, the light emitted by the LED display screen 7 cannot be accurately identified. Therefore, the solution is to lower the transparent plate 5 so that the opening of the mounting chamber 3 is open. In this way, the light of the LED display screen 7 can be emitted directly. Moreover, due to the rainproof effect of the reflection chamber 2 and the mounting chamber 3, rainwater is less likely to enter the surface of the LED display screen 7 and cause diffuse reflection.

[0056] In specific operation, the servo motor 9 can be started by the external control terminal. The motor shaft of the servo motor 9 rotates and drives the ball screw 11 to rotate. Then, through the transmission of the pulley, the other ball screw 11 also rotates synchronously, which causes the two screw sleeves 15 to drive the connecting sleeve 14 to move downward. This allows the locking strip 6 to drive the transparent plate 5 to move downward. During the downward movement, the ball 18 will roll from the inner wall of the notch groove 20 to the surface of the positioning rod 10 (facing the side of the locking strip 6), so that the ball 18 is subjected to lateral compression force, which will drive the sliding rod 13 to move away from the floating block 12. This increases the lateral distance between the locking strip 6 and the surface of the opening of the mounting chamber 3. This ensures that the brightening film on the surface of the transparent plate 5 will not scratch the surface of the opening of the mounting chamber 3 and cause damage when the transparent plate 5 moves downward. In addition, during the movement, the spring 17 always maintains the elastic resisting force on the stop ring 16, so that the locking strip 6 will not move on its own.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor waterproof LED display screen structure, comprising a frame and a back plate mounted on the upper end of the frame, wherein an LED display screen is mounted on the surface of the back plate, characterized in that, Also includes: The reflective chamber is detachably connected to the outer wall of the back panel. The inner wall of the reflective chamber is coated with a reflective coating. The side of the reflective chamber away from the back panel is flared. The screen of the LED display is located in the inner cavity of the reflective chamber. A mounting chamber is fixed to the outer wall of the reflector chamber on the side away from the back plate, and the inner cavity of the mounting chamber is connected to the inner cavity of the reflector chamber. A transparent panel installed on the outer wall of the installation chamber on the side away from the reflector chamber; The outer wall of the installation chamber is equipped with a lifting unit. The lifting unit is used to drive the transparent plate to move vertically, thereby closing or opening the opening of the installation chamber. The lifting unit includes a drive chamber that is integrally formed and fixed to the outer walls of both sides of the installation chamber. The upper and lower outer walls of the drive chamber are vertically rotatably connected to a ball screw. A nut is installed around the periphery of the ball screw. A connecting sleeve is fixedly fitted around the periphery of the nut. A locking strip is connected around the periphery of the connecting sleeve. The outer walls of the two locking strips on opposite sides are provided with slots for fixing and engaging the ends of the transparent plate. The connecting sleeve and the card strip are connected by a floating unit. The floating unit is used to adjust the lateral distance between the card strip and the connecting sleeve when the card strip moves vertically. The floating unit includes a floating block that is horizontally fixed to the periphery of the connecting sleeve. The outer wall of the drive chamber is provided with an air-blocking groove for the floating block to pass freely. A sliding rod is horizontally fixed to the outer wall of the card strip and slides through the floating block. One end of the sliding rod, which passes through the floating block, is rotatably fitted with a ball. The upper and lower outer walls of the drive chamber are vertically fixed with a positioning rod. The positioning rod slides through the floating block, and a notch is provided at the upper end of the positioning rod. The notch is used in conjunction with the ball. The sliding rod is also provided with an elastic abutment unit around its periphery, which gives the sliding rod the potential energy to move toward the connecting sleeve.

2. The structure of an outdoor waterproof LED display screen according to claim 1, characterized in that, The corners of the reflector chamber's inner cavity transition smoothly with the inner wall of the reflector chamber.

3. The structure of an outdoor waterproof LED display screen according to claim 1, characterized in that, The outer wall of the installation compartment has multiple heat dissipation slots.

4. The structure of an outdoor waterproof LED display screen according to claim 1, characterized in that, A pulley is fixedly mounted on one end of the ball screw, and the two pulleys are connected by a V-belt drive. A servo motor is installed on the outer wall of one of the drive chambers, and the servo motor is connected to one of the ball screws for drive.

5. The structure of an outdoor waterproof LED display screen according to claim 1, characterized in that, The side of the transparent panel facing the LED display screen has a brightness enhancement film.

6. The structure of an outdoor waterproof LED display screen according to claim 1, characterized in that, The elastic abutment unit includes a stop ring fixedly sleeved around the periphery of the sliding rod, a through groove on the surface of the floating block for the stop ring to pass freely, and a spring wrapped around the periphery of the sliding rod, the spring exerting an elastic abutment force on the stop ring toward the connecting sleeve.

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