Full-color LED display screen cover and LED display screen

Abstract

This utility model relates to the field of LED lighting, and more particularly to a full-color LED display screen cover and LED display screen, including a positioning frame and a transparent plate. The positioning frame and the transparent plate are an integral structure, and are equipped with a lower mold frame and an upper mold frame for making the cover. Multiple rectangular convex molds are fixedly connected to the upper end of the lower mold frame, and locking post molds are fixedly connected to the four corners of the upper end of the lower mold frame. The upper mold frame is movably limited at the upper end of the lower mold frame. The positioning frame and the transparent plate are made of silicone resin. This utility model strengthens the overall strength of the screen cover through the integrated structure of the positioning frame and the transparent plate. The positioning frame contains boron nitride material, which has excellent thermal conductivity. Through the matching and positioning of the molds, a screen cover meeting the requirements can be quickly and accurately produced, reducing operational difficulty and labor costs. Furthermore, the overall installation efficiency is improved by pressing and fixing it through the locking holes and the locking posts on the screen.

Description

Technical Field

[0001] This utility model belongs to the field of LED lighting, specifically relating to a full-color LED display screen cover and an LED display screen. Background Technology

[0002] In today's era of rapid digital and information technology development, LED displays have become an important carrier for information dissemination and visual presentation due to their significant advantages such as high brightness, high contrast, vivid colors, and flexible splicing. They have been widely used in many fields such as advertising media, stage performances, sports events, traffic signs, and commercial displays.

[0003] Existing LED displays generate a lot of heat during operation, and the screen cover has poor heat dissipation, which may affect the normal operation of integrated circuits or even cause them to burn out. In addition, the installation of traditional screen covers may be complicated and inefficient.

[0004] Therefore, existing LED display screen covers suffer from poor heat dissipation and low installation efficiency during use. Utility Model Content

[0005] In order to overcome the problems of poor heat dissipation and low installation efficiency of existing LED display screen covers during use, a full-color LED display screen cover and LED display screen are proposed.

[0006] The technical solution of this utility model is as follows: a full-color LED display screen cover, including a positioning frame and a transparent plate. The positioning frame and the transparent plate are an integral structure, and are equipped with a lower mold frame and an upper mold frame for making the cover. Multiple rectangular convex molds are fixedly connected to the upper end of the lower mold frame. A locking post mold is fixedly connected to the four corners of the upper end of the lower mold frame. The upper mold frame is movably limited and placed at the upper end of the lower mold frame. The positioning frame and the transparent plate are made of silicone resin. The positioning frame is mixed with boron nitride material. The positioning frame has evenly distributed placement grooves formed by the convex molds on the lower mold frame. The transparent plate is fixed to the upper end of the positioning frame. The integral structure formed by the positioning frame and the transparent plate has a female groove and locking hole for the locking post mold on the lower mold frame.

[0007] Preferably, the upper end of the lower mold frame is provided with a frame-shaped limiting groove, and the front and rear ends of the lower mold frame are fixed with first retaining strips for limiting.

[0008] Preferably, a limiting frame is fixed to the lower end of the upper mold frame, and the limiting frame and the frame-shaped limiting groove are mutually compatible.

[0009] Preferably, the front and rear ends of the upper mold frame are fixedly connected with second retaining strips, and the outer wall of the second retaining strip and the first retaining strip are slidably provided with sliding limit sleeves after they are in contact with each other.

[0010] The LED display screen includes a PCB electronic board and multiple rectangularly distributed LED light-emitting elements mounted on the upper part of the PCB electronic board. It also includes first retaining posts set at the four corners of the PCB electronic board and the display screen cover mentioned on the PCB electronic board, with the screen cover set at the upper part of the PCB electronic board.

[0011] Preferably, the LED light-emitting elements set at the upper end of the PCB electronic board correspond one-to-one with the placement slots opened on the positioning frame and are compatible with each other. The first card post fixed at the upper end of the PCB electronic board forms an integrated structure with the positioning frame and the transparent plate and is connected by a card hole at the lower end.

[0012] Preferably, the distance between the upper and lower ends of the convex mold is greater than the distance between the upper and lower ends of the LED light-emitting element, and the upper outer side of the LED light-emitting element is provided with an arc-shaped rounded corner structure.

[0013] The beneficial effects of this utility model are as follows: the integrated structure of the positioning frame and the transparent plate enhances the overall strength of the screen cover; the positioning frame is mixed with boron nitride material, which has excellent thermal conductivity; through the cooperation and positioning of the mold, the screen cover that meets the requirements can be quickly and accurately produced, reducing the difficulty of operation and labor costs; and the overall installation efficiency is improved by pressing and fixing it through the card holes and the subsequent card posts on the screen. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0015] Figure 2 The diagram shown is a three-dimensional structural schematic of the lower mold frame of this utility model.

[0016] Figure 3 This utility model is shown. Figure 2 Enlarged 3D structural diagram at point A;

[0017] Figure 4 The diagram shown is a three-dimensional disassembled structural diagram of the positioning frame and mold of this utility model;

[0018] Figure 5 The diagram shown is a three-dimensional disassembled structural diagram of the limiting structure of the molding die of this utility model.

[0019] Figure 6 The diagram shown is a three-dimensional structural schematic of the PCB electronic board of this utility model.

[0020] Figure 7 The diagram shown is a cross-sectional three-dimensional structural diagram of the screen cover of this utility model after installation.

[0021] The markings in the attached diagram are as follows: 1. PCB electronic board; 101. LED light-emitting element; 102. First locking post; 2. Positioning frame; 201. Placement slot; 202. Locking hole; 3. Transparent plate; 4. Lower mold frame; 401. Frame-shaped limiting groove; 402. First locking strip; 403. Convex mold; 404. Locking post mold; 5. Upper mold frame; 501. Second locking strip; 502. Limiting frame; 6. Sliding limiting sleeve. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-7 This utility model provides an embodiment of a full-color LED display screen cover, including a positioning frame 2 and a transparent plate 3. The positioning frame 2 and the transparent plate 3 are an integral structure, and are equipped with a lower mold frame 4 and an upper mold frame 5 for making the cover. The upper end of the lower mold frame 4 is fixed with a plurality of rectangularly evenly distributed convex molds 403, and the four corners of the upper end of the lower mold frame 4 are fixed with locking pin molds 404. The upper mold frame 5 is movably limited and placed at the upper end of the lower mold frame 4. The positioning frame 2 and the transparent plate 3 are made of silicone resin, wherein the positioning frame 2 is mixed with boron nitride material, and the positioning frame 2 is connected to the convex molds on the lower mold frame 4. The mold 403 forms evenly distributed placement grooves 201. The transparent plate 3 is fixed to the upper end of the positioning frame 2. The integrated structure formed by the positioning frame 2 and the transparent plate 3 has a female groove slot 202 for the upper clamping post mold 404 of the lower mold frame 4. The integrated structure of the positioning frame 2 and the transparent plate 3 strengthens the overall strength of the screen cover. The positioning frame 2 contains boron nitride material, which has excellent thermal conductivity. Through the cooperation and positioning of the mold, the screen cover that meets the requirements can be quickly and accurately produced, reducing the difficulty of operation and labor costs. Furthermore, the screen cover is pressed and fixed by the slot 202 and the clamping post on the screen, which improves the overall installation efficiency.

[0024] Please see Figures 1-5 In this embodiment, the upper end of the lower mold frame 4 is provided with a frame-shaped limiting groove 401, and the front and rear ends of the lower mold frame 4 are fixedly connected with a first retaining strip 402 for limiting. The lower end of the upper mold frame 5 is fixedly connected with a limiting frame 502. The limiting frame 502 and the frame-shaped limiting groove 401 are adapted to each other. The front and rear ends of the upper mold frame 5 are fixedly connected with a second retaining strip 501. The outer wall of the second retaining strip 501 and the first retaining strip 402 after they are in contact with each other is slidably provided with a sliding limiting sleeve 6. By sliding and limiting the installation, it is convenient to assemble the molds between the lower mold frame 4 and the upper mold frame 5.

[0025] Please see Figures 1-7This utility model provides an embodiment of an LED display screen. In this embodiment, it includes a PCB electronic board 1 and a plurality of rectangularly distributed LED light-emitting elements 101 mounted on the upper end of the PCB electronic board 1. It also includes first retaining posts 102 disposed at the four corners of the PCB electronic board 1 and the display screen cover disposed on the upper end of the PCB electronic board 1.

[0026] Please see Figures 6-7 In this embodiment, the LED light-emitting element 101 on the upper end of the PCB electronic board 1 and the placement slot 201 on the positioning frame 2 correspond to each other and are compatible. The first locking post 102 fixed to the upper end of the PCB electronic board 1 forms an integral structure with the positioning frame 2 and the transparent plate 3. The locking hole 202 at the lower end is snapped together, and the screen and screen cover are conveniently assembled by pressing. The distance between the upper and lower ends of the convex mold 403 is greater than the distance between the upper and lower ends of the LED light-emitting element 101. The upper outer side of the LED light-emitting element 101 is provided with an arc-shaped rounded corner structure. The difference in thermal expansion coefficient between the LED beads and the screen cover is large. The spacing can avoid stress concentration caused by uneven expansion at high temperature, and prevent the beads from falling off or the screen cover from cracking.

[0027] In the preparation of the LED display screen cover, firstly, the limiting frame 502 on the upper mold frame 5 is placed in the frame-shaped limiting groove 401 on the lower mold frame 4, so that the upper ends of the first retaining strips 402 at both ends of the lower mold frame 4 and the lower ends of the second retaining strips 501 at both ends of the upper mold frame 5 are in contact with each other. Then, the sliding limiting sleeve 6 is fitted onto the outside of the second retaining strips 501 and the first retaining strips 402. A release agent is sprayed on the right-angled inner sides of the lower mold frame 4 and the upper mold frame 5 and the lower end of the lower mold frame 4. Next, a quantitative amount of silicone resin mixed with boron nitride is laid on the upper end of the lower mold frame 4, so that the liquid surface is flush with the upper end of the convex mold 403. Then, it is placed in a defoaming device for vacuum defoaming. After curing, the positioning frame 2 is formed. Then, silicone resin is added on the positioning frame 2. The positioning frame 2 and the transparent plate 3 are aligned with the upper end of the upper mold frame 5 and cured to form a transparent plate 3. The integrated structure formed by the positioning frame 2 and the transparent plate 3 forms a card hole 202 at the lower end of the screen cover through the card post mold 404 on the lower mold frame 4. The card hole 202 at the bottom of the prepared screen cover is aligned with the first card post 102 at the four corners of the PCB electronic board 1 and pressed to make the placement slot 201 and the LED light-emitting element 101 correspond one by one. The screen cover and the LED display are fixed by snap-fit ​​through the first card post 102 and the card hole 202. The positioning frame 2 is cured by mixing boron nitride with boron nitride, which can effectively improve the overall thermal conductivity of the positioning frame 2. The screen cover supported by silicone resin can effectively reduce light scattering and light loss, and also has a certain ability to resist yellowing and wear.

Claims

1. A full-color LED display screen cover, including a positioning frame (2); characterized in that: It also includes a transparent plate (3), a positioning frame (2) and a transparent plate (3) are integrated, and are equipped with a lower mold frame (4) and an upper mold frame (5) for making the cover. Multiple rectangular convex molds (403) are fixed to the upper end of the lower mold frame (4), and a pin mold (404) is fixed to the four corners of the upper end of the lower mold frame (4). The upper mold frame (5) is placed at the upper end of the lower mold frame (4). The positioning frame (2) and the transparent plate (3) are made of silicone resin. The positioning frame (2) is mixed with boron nitride material. The positioning frame (2) forms a uniformly distributed placement groove (201) through the convex mold (403) on the lower mold frame (4). The transparent plate (3) is fixed to the upper end of the positioning frame (2). The integrated structure formed by the positioning frame (2) and the transparent plate (3) has a female groove hole (202) for the pin mold (404) on the lower mold frame (4).

2. The full-color LED display screen cover according to claim 1, characterized in that: The upper end of the lower mold frame (4) is provided with a frame-shaped limiting groove (401), and the front and rear ends of the lower mold frame (4) are fixed with a first locking strip (402) for limiting.

3. The full-color LED display screen cover according to claim 1, characterized in that: The lower end of the upper mold frame (5) is fixedly connected to a limiting frame (502), and the limiting frame (502) and the frame-type limiting groove (401) are mutually compatible.

4. The full-color LED display screen cover according to claim 1, characterized in that: The front and rear ends of the upper mold frame (5) are fixed with a second locking strip (501), and the outer wall of the second locking strip (501) and the first locking strip (402) after they are in contact with each other is slidably provided with a sliding limit sleeve (6).

5. An LED display screen, characterized in that, The full-color LED display screen cover as described in any one of claims 1-4 includes a PCB electronic board (1) and a plurality of rectangularly distributed LED light-emitting elements (101) mounted on the upper end of the PCB electronic board (1), and also includes first locking posts (102) provided at the four corners of the PCB electronic board (1), and the display screen cover as described in the claim PCB electronic board (1), the screen cover being disposed on the upper end of the PCB electronic board (1).

6. The LED display screen according to claim 5, characterized in that: The LED light-emitting element (101) set on the upper end of the PCB electronic board (1) and the placement slot (201) opened on the positioning frame (2) correspond to each other and are compatible. The first card post (102) fixed on the upper end of the PCB electronic board (1) forms an integral structure with the positioning frame (2) and the transparent plate (3) and the card hole (202) opened at the lower end is snapped together.

7. The LED display screen according to claim 5, characterized in that: The distance between the upper and lower ends of the convex mold (403) is greater than the distance between the upper and lower ends of the LED light-emitting element (101), and the upper outer side of the LED light-emitting element (101) is provided with an arc-shaped rounded corner structure.

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