High-compression-resistance LED display module

Abstract

The utility model relates to a high pressure resistant LED display module, which comprises a shell with an opening at the top end, a circuit board is arranged in the shell, an LED display screen is mounted on the upper surface of the circuit board and electrically connected with the circuit board, a limit frame is sleeved on the peripheral side of the LED display screen, and the limit frame is electrically connected with the circuit board. The limiting frame is connected with the opening end of the shell through a connecting piece, a buffer plate capable of sliding up and down in the height direction of the shell is connected to the lower portion of the circuit board, the buffer plate slides into the shell to prevent the LED display screen from being rigidly extruded, meanwhile, the buffer plate can extrude the damping sliding block to slide into the damping pipe, and after external pressure disappears, the damping sliding block can slide into the damping pipe. Due to the fact that the anti-skid lines are arranged on the inner wall of the damping tube, the friction resistance between the damping tube and the damping sliding block is greatly increased, the damping effect is achieved through the friction resistance, the spring is prevented from pushing the LED display screen to reset quickly, and the problem that the LED display screen is prone to being damaged due to the fact that collision is generated again in the reset process of the LED display screen is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED display modules, and particularly relates to a high-pressure-resistant LED display module. Background Art

[0002] LED display modules are products made up of a certain number of light-emitting diodes arranged together in a regular pattern, then packaged and waterproofed. They can be used to display images, text or animation information and are widely used in airports, stations, shops, hotels and other places.

[0003] To prevent LED display modules from being damaged by pressure during installation and transportation, existing LED display modules are generally installed with a pressure-resistant structure with buffering properties, so that the LED display screen can slide into the shell to reduce the impact pressure after being compressed. However, when the pressure disappears, the pressure-resistant structure will push the LED display screen in the opposite direction to reset. During this process, the LED display screen may hit the shell, increasing the number of times the LED display screen is hit and greatly increasing the probability of the display screen being damaged due to collision. Utility Model Content

[0004] The purpose of the present invention is to provide a high-pressure-resistant LED display module with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A high-pressure-resistant LED display module comprises a shell with an opening at the top, a circuit board is arranged in the shell, an LED display screen is installed on the upper surface of the circuit board, the LED display screen is electrically connected to the circuit board, a limit frame is provided on the circumference of the LED display screen, the limit frame is connected to the open end of the shell through a connecting piece, a buffer plate that can slide upward along the height direction of the shell is connected to the bottom of the circuit board, connecting arms are fixedly installed at both ends of the buffer plate, the end of the connecting arm away from the buffer plate is connected to the bottom wall of the shell by an elastic buffer structure, a damping slider is fixedly connected to the center of the lower surface of the buffer plate, a damping tube with a bottom end fixedly connected to the bottom wall of the shell is provided below the damping slider, anti-slip grooves are provided on the inner wall of the damping tube, and the bottom end of the damping slider is passed through the damping tube and is slidably connected to the damping tube.

[0007] As a further optimization scheme of the present invention, the connecting part includes four matrix-distributed screws passing through the limit frame, and also includes four internal screw holes set at the open end of the outer shell. The four internal screw holes are respectively arranged in alignment with the four screws, and the bottom ends of the screws are screwed to the outer shell through the internal screw holes.

[0008] As a further optimization solution of the present invention, a sealing ring is fixedly connected to the inner side wall of the limiting frame, and the inner ring of the sealing ring is in contact with the upper surface of the LED display screen.

[0009] As a further optimization solution of the present invention, the buffer plate is provided with a plurality of slots, and the bottom of the circuit board is fixedly connected to the upper surface of the buffer plate through the slots.

[0010] As a further optimization scheme of the present invention, the elastic buffer structure includes a sliding tube with a bottom end fixedly connected to the bottom wall of the inner cavity of the shell, the top of the sliding tube is slidably connected to a sliding rod, one end of the sliding rod located outside the sliding tube is fixed to the connecting arm, and a spring is sleeved on a section of the sliding rod between the connecting arm and the sliding tube, and the two ends of the spring are respectively fixed to the top of the sliding tube and the lower surface of the connecting arm.

[0011] As a further optimization solution of the present invention, a plurality of heat dissipation holes are provided on both the front and rear side walls of the shell, and the heat dissipation holes penetrate through the side walls of the shell and communicate with the inner cavity of the shell.

[0012] The beneficial effect of the present invention is that the buffer plate slides into the outer shell to prevent the LED display from being hard squeezed, and at the same time, it can squeeze the damping slider to slide into the damping tube. After the external pressure disappears, the anti-slip grooves are provided on the inner wall of the damping tube, which greatly increases the friction resistance between the damping slider and the damping slider. The friction resistance is used to form a damping effect, preventing the spring from pushing the LED display to reset quickly, so as to avoid the problem of collision during the reset process of the LED display, which may easily cause damage to the LED display. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0016] Figure 4 This is a schematic diagram of the installation structure of the buffer plate of the utility model;

[0017] Figure 5 This utility model Figure 4 A magnified view of the local details at point A.

[0018] In the figure: 1. Housing; 2. Circuit board; 3. LED display; 4. Limit frame; 5. Screw; 6. Internal screw hole; 7. Sealing ring; 8. Buffer plate; 9. Card slot; 10. Connecting arm; 11. Sliding tube; 12. Sliding rod; 13. Spring; 14. Damping tube; 15. Anti-slip groove; 16. Damping slider; 17. Heat dissipation hole. DETAILED DESCRIPTION

[0019] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example 1

[0021] like Figure 1 - Figure 5 As shown, a high-pressure-resistant LED display module includes a housing 1 with an opening at the top, a circuit board 2 is arranged in the housing 1, an LED display screen 3 is mounted on the upper surface of the circuit board 2, and the LED display screen 3 is electrically connected to the circuit board 2;

[0022] A limiting frame 4 is provided around the side of the LED display 3. The limiting frame 4 is connected to the open end of the housing 1 through a connecting piece. The connecting piece includes four screws 5 arranged in a matrix on the limiting frame 4, and also includes four internal screw holes 6 provided at the open end of the housing 1. The four internal screw holes 6 are respectively aligned with the four screws 5. The bottom ends of the screws 5 are screwed to the housing 1 through the internal screw holes 6. The screw connection method not only ensures a stable connection, but also facilitates the installation and removal of the limiting frame 4, thereby facilitating the user to repair a fault in the circuit board 2.

[0023] A sealing ring 7 is fixedly connected to the inner wall of the limit frame 4. The inner ring of the sealing ring 7 is in contact with the upper surface of the LED display screen 3 to improve the sealing performance of the connection between the peripheral side of the LED display screen 3 and the limit frame 4.

[0024] A buffer plate 8 is provided below the circuit board 2 and can slide down along the height direction of the shell 1. The buffer plate 8 has a plurality of slots 9. The bottom of the circuit board 2 is fixed to the upper surface of the buffer plate 8 through the slots 9. Connecting arms 10 are fixedly installed at both ends of the buffer plate 8. The end of the connecting arm 10 away from the buffer plate 8 is connected to the bottom wall of the shell 1 through an elastic buffer structure. The elastic buffer structure includes a sliding tube 11 fixedly connected to the bottom wall of the inner cavity of the shell 1 at the bottom end. The top of the sliding tube 11 is slidably connected to a sliding rod 12. The end of the sliding rod 12 located outside the sliding tube 11 is fixed to the connecting arm 10. A spring 13 is sleeved on a section of the slide rod 12 between the connecting arm 10 and the slide tube 11. The two ends of the spring 13 are respectively fixed to the top of the slide tube 11 and the lower surface of the connecting arm 10. When the LED display screen 3 is under pressure, it can push the circuit board 2 to slide into the housing 1. The connecting arms 10 installed at both ends of the buffer plate 8 squeeze the slide rod 12 to slide into the slide tube 11, thereby squeezing the spring 13 to contract and buffer, thereby avoiding the LED display screen 3 from being hard squeezed, resulting in damage to the LED display screen 3 due to squeezing, and greatly improving the pressure resistance of the LED display screen 3.

[0025] A damping slider 16 is fixedly connected to the center of the lower surface of the buffer plate 8, and a damping tube 14 is provided below the damping slider 16, the bottom end of which is fixedly connected to the bottom wall of the outer shell 1. Anti-slip grooves 15 are provided on the inner wall of the damping tube 14, and the bottom end of the damping slider 16 is passed through the damping tube 14 and is slidably connected to the damping tube 14.

[0026] The cam 12 is pressed against the bottom surface of the LED display 3 and the cam 13 is pressed against the bottom surface of the LED display 3. When the cam 12 is pressed against the bottom surface of the LED display 3, the cam 13 is pressed against the bottom surface of the LED display 3 and the cam 13 is pressed against the bottom surface of the LED display 3. When the cam 12 is pressed against the bottom surface of the LED display 3, the cam 13 is pressed against the bottom surface of the LED display 3 and the cam 13 is pressed against the bottom surface of the LED display 3.

[0027] Example 2

[0028] Further improvements were made based on Example 1, such as Figure 1 and Figure 4As shown: a plurality of heat dissipation holes 17 are provided on both the front and rear side walls of the housing 1 , and the heat dissipation holes 17 pass through the side walls of the housing 1 and communicate with the inner cavity of the housing 1 .

[0029] When the LED display screen 3 is not squeezed, the spring 13 is in an extended state. At this time, there is a gap between the lower surface of the buffer plate 8 and the bottom wall of the shell 1. When the circuit board 2 is working, the heat generated can diffuse into the gap and exchange heat with the external ambient air through the heat dissipation holes 17, thereby reducing the temperature inside the shell 1 and greatly improving the service life of the circuit board 2.

[0030] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A high-pressure-resistant LED display module, comprising a housing (1) with an opening at the top, a circuit board (2) disposed in the housing (1), an LED display screen (3) mounted on the upper surface of the circuit board (2), the LED display screen (3) being electrically connected to the circuit board (2), a limiting frame (4) being sleeved around the circumference of the LED display screen (3), the limiting frame (4) being connected to the open end of the housing (1) via a connecting member, characterized in that: A buffer plate (8) is connected below the circuit board (2) and can slide downward in the height direction of the housing (1). Connecting arms (10) are fixedly installed at both ends of the buffer plate (8). The end of the connecting arm (10) away from the buffer plate (8) is connected to the bottom wall of the housing (1) through an elastic buffer structure. A damping slider (16) is fixedly connected to the center of the lower surface of the buffer plate (8). A damping tube (14) is provided below the damping slider (16), the bottom end of which is fixedly connected to the bottom wall of the housing (1). Anti-slip grooves (15) are provided on the inner wall of the damping tube (14). The bottom end of the damping slider (16) is inserted into the damping tube (14) and is slidably connected to the damping tube (14).

2. The high-pressure-resistant LED display module according to claim 1, characterized in that: The connecting member includes four screws (5) arranged in a matrix distribution on the limit frame (4), and also includes four internal screw holes (6) provided at the open end of the shell (1), the four internal screw holes (6) are respectively arranged to correspond to the four screws (5), and the bottom ends of the screws (5) are screwed to the shell (1) through the internal screw holes (6).

3. The high-pressure-resistant LED display module according to claim 1, characterized in that: A sealing ring (7) is fixedly connected to the inner side wall of the limiting frame (4), and the inner ring of the sealing ring (7) is in contact with the upper surface of the LED display screen (3).

4. The high-pressure-resistant LED display module according to claim 1, characterized in that: The buffer plate (8) is provided with a plurality of slots (9), and the bottom of the circuit board (2) is fixedly connected to the upper surface of the buffer plate (8) via the slots (9).

5. The high-pressure-resistant LED display module according to claim 1, characterized in that: The elastic buffer structure includes a sliding tube (11) whose bottom end is fixedly connected to the bottom wall of the inner cavity of the shell (1); the top end of the sliding tube (11) is slidably connected to a sliding rod (12); one end of the sliding rod (12) located outside the sliding tube (11) is fixed to the connecting arm (10); a spring (13) is sleeved on a section of the sliding rod (12) between the connecting arm (10) and the sliding tube (11); and the two ends of the spring (13) are respectively fixed to the top end of the sliding tube (11) and the lower surface of the connecting arm (10).

6. The high-pressure-resistant LED display module according to claim 1, characterized in that: The front and rear side walls of the housing (1) are both provided with a plurality of heat dissipation holes (17), and the heat dissipation holes (17) penetrate the side walls of the housing (1) and communicate with the inner cavity of the housing (1).

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