Sun-proof outdoor liquid crystal display device
By using thermally insulated tempered glass and breathable hole design in outdoor LCD display equipment, combined with optimized LED circuits, the problems of sun protection, anti-fog, dust protection and reduced power supply requirements are solved, and efficient protection effects are achieved.
Patent Information
- Application Number
- CN202423017270.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional outdoor LCD display devices cannot effectively protect against sunlight when exposed to sunlight, and are prone to fog, dust and waterproofing in alternate hot and cold environments. At the same time, LED circuit design has problems such as high power consumption and easy damage to electronic components.
Thermal insulation tempered glass protects the liquid crystal glass, with breathable holes installed and a waterproof breathable membrane attached, the LED circuit design is optimized to reduce the power supply voltage requirement, and the boost plate is cancelled.
It improves the sun protection and temperature insulation effect, avoids internal fog and dust inflow, reduces the loss of electronic components and power supply requirements, and achieves low-cost and efficient protection.
Smart Images
Figure CN223229819U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display equipment, in particular to a sun-proof outdoor liquid crystal display equipment. Background Art
[0002] Traditional outdoor LCD display devices are made of tempered glass, high-brightness LCD screens, cooling fans, and structural components. They are used in outdoor smart transportation, outdoor smart charging piles, outdoor smart digital signage and other fields.
[0003] Due to the complex environmental conditions of outdoor use, traditional outdoor LCD display devices have the following shortcomings: 1. When exposed to sunlight, traditional outdoor LCD advertising machines only cool the liquid crystal and do not have a higher level of sun protection treatment. 2. When used in alternating hot and cold environments, traditional outdoor LCD advertising machines cannot cost-effectively take into account the machine's own fogging, dust ingress, and waterproofing. Parts to prevent fogging or dust ingress usually require regular maintenance or replacement. 3. The LED circuit light board previously used by the applicant uses a model 2835 with a total of 720 lamp beads. The LED circuit light board is designed with three independent circuits, each of which includes 10 parallel branch circuits. Each branch circuit is formed by 24 lamp beads connected in series and is driven by a 24V power supply. In this circuit design, the driving power supply must use a constant current board (also known as a boost board) to boost the voltage to 48V-100V to ensure the stable operation of the lamp beads on the entire LED circuit light board. However, this circuit design requires a constant current board to control the brightness of the screen, which has the disadvantages of high self-loss power consumption and easy damage to electronic components. In order to solve the above problems, the utility model provides a sun-proof outdoor liquid crystal display device. Utility Model Content
[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a sun-proof outdoor liquid crystal display device, which avoids high temperatures of the liquid crystal glass caused by exposure to the sun by installing heat-insulating tempered glass on the front side of the liquid crystal glass; avoids internal fogging by installing a cover plate on the inner side of the back cover and providing air vents B on the cover plate; at the same time, a waterproof and breathable membrane is attached to the inner side of the cover plate to achieve air permeability while effectively preventing dust and water; through the 8-series and 90-parallel circuit design, the number of lamp beads connected in series on the parallel circuit is reduced, the power supply voltage requirement is reduced, and a booster board is not required; the technical problems raised in the background technology are solved.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a sun-proof outdoor liquid crystal display device, comprising: an aluminum profile frame, liquid crystal glass, heat-insulating tempered glass, an optical module assembly, a high-brightness LED circuit light board, a back cover, and an electrical maintenance control box; the liquid crystal glass and the heat-insulating tempered glass are sequentially installed on the front face of the aluminum profile frame from the inside to the outside; by installing the heat-insulating tempered glass on the front side of the liquid crystal glass, the high temperature of the liquid crystal glass caused by exposure to the sun is avoided, thereby improving the sun-proof and heat-insulating protective effect; the optical module assembly and the high-brightness LED circuit light board are sequentially installed on the inside of the aluminum profile frame from the front to the back; the back cover is installed on the rear end face of the aluminum profile frame;
[0006] The back cover is provided with a plurality of air holes A in a matrix; a cover plate is installed on the inner side of the back cover; the cover plate covers all the air holes A; a plurality of air holes B are provided on the cover plate in a matrix; a waterproof breathable membrane for covering all the air holes B is attached to the inner side of the cover plate; by installing the cover plate on the inner side of the back cover and providing the air holes B on the cover plate, a good ventilation effect is achieved to avoid internal fogging; at the same time, a waterproof breathable membrane is attached to the inner side of the cover plate to achieve ventilation while effectively preventing dust and water, thereby achieving a good protective effect.
[0007] Preferably, an annular groove A is provided on the front end surface of the aluminum profile frame; the liquid crystal glass and the heat-insulating tempered glass are sequentially installed in the annular groove A from the inside to the outside.
[0008] Preferably, an annular groove B is provided on the rear end surface of the aluminum profile frame; and the rear cover is installed in the annular groove B.
[0009] Preferably, an annular groove C is provided on the rear end surface of the aluminum profile frame; and the high-brightness LED circuit light board is installed in the annular groove C.
[0010] Preferably, an annular groove D is formed on the bottom surface of the annular groove B; and the optical module assembly is installed in the annular groove D.
[0011] Preferably, 90 parallel circuits connected in parallel with each other are arranged on the high-brightness LED circuit lamp board; each parallel circuit is formed by 8 lamp beads in series, and the 90 parallel circuits are directly powered by a 24V driving power supply; the lamp bead model is 2835; through the 8-series and 90-parallel circuit design, the number of lamp beads connected in series on the parallel circuit is reduced, the power supply voltage requirement is reduced, and no boost board is required, and the 24V lamp board driving power supply can be used to directly power the circuit, saving resources and reducing the loss of electronic components.
[0012] The beneficial effects of the present invention are:
[0013] 1. The utility model installs heat-insulating tempered glass in front of the liquid crystal glass to avoid high temperature of the liquid crystal glass caused by exposure to the sun, thereby improving the sun-proof and heat-insulating protective effect.
[0014] 2. The utility model installs a cover plate on the inner side of the back cover and opens a vent hole B on the cover plate to achieve good ventilation effect and avoid internal fogging. At the same time, a waterproof and breathable film is attached to the inner side of the cover plate to achieve ventilation while effectively preventing dust and water, thereby achieving good protection effect.
[0015] 3. The utility model reduces the number of lamp beads in series on the parallel circuit and the demand for power supply voltage through the circuit design of 8 series and 90 parallel on the high-brightness LED circuit lamp board. It does not require a boost board and can be directly powered by a 24V lamp board drive power supply, saving resources and reducing the loss of electronic components. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 This is an exploded view of the front view angle of a sun-proof outdoor liquid crystal display device provided by the utility model.
[0018] Figure 2 This is an exploded view of the rear view angle of a sun-proof outdoor liquid crystal display device provided by the utility model.
[0019] Figure 3 This is a structural diagram of the electrical maintenance control box in the utility model installed in an aluminum profile frame.
[0020] Figure 4 This is a structural diagram of the cover plate installed on the rear cover of the utility model.
[0021] Explanation of the accompanying drawings: 1-aluminum profile frame, 11-annular groove A, 12-annular groove B, 13-annular groove C, 14-annular groove D, 2-liquid crystal glass, 3-insulating tempered glass, 4-optical module assembly, 5-high-brightness LED circuit light board, 6-back cover, 61-vent A, 62-cover plate, 621-vent B, 7-electrical maintenance control box. 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] Example 1:
[0024] like Figures 1 to 4 As shown, this embodiment provides a sun-proof outdoor liquid crystal display device, including: an aluminum profile frame 1, liquid crystal glass 2, heat-insulating tempered glass 3, an optical module assembly 4, a high-brightness LED circuit light board 5, a back cover 6 and an electrical maintenance control box 7; the liquid crystal glass 2 and the heat-insulating tempered glass 3 are installed in sequence from the inside to the outside on the front face of the aluminum profile frame 1; more specifically, an annular groove A11 is provided on the front face of the aluminum profile frame 1; the liquid crystal glass 2 and the heat-insulating tempered glass 3 are installed in sequence from the inside to the outside in the annular groove A11, and the optical module assembly 4 and the high-brightness LED circuit light board 5 are installed in sequence from the front to the back on the inner side of the aluminum profile frame 1; more specifically, an annular groove C13 is provided on the rear end face of the aluminum profile frame 1; the high-brightness LED circuit light board 5 is installed in the annular groove C12; an annular groove D14 is provided on the bottom surface of the annular groove B12; and the optical module assembly 4 is installed in the annular groove D14.
[0025] See also Figures 2 to 4 As shown, the rear end face of the aluminum profile frame 1 defines an annular groove B12; the rear cover 6 is installed within the annular groove B12; the rear cover 6 is installed on the rear end face of the aluminum profile frame 1; the rear cover 6 defines a plurality of ventilation holes A61 in a matrix; a cover plate 62 is installed inside the rear cover 6; the cover plate 62 covers all ventilation holes A61; the cover plate 62 defines a plurality of ventilation holes B621 in a matrix; and a waterproof breathable membrane is affixed to the inner side of the cover plate 62 to cover all ventilation holes B621. By installing the cover plate 62 inside the rear cover 6 and defining ventilation holes B621 on the cover plate 62, good ventilation is achieved, preventing internal fogging. Simultaneously, the waterproof breathable membrane is affixed to the inner side of the cover plate 62, achieving both ventilation and effective dust and water protection, providing excellent protection.
[0026] More specifically, 90 parallel circuits connected in parallel with each other are arranged on the high-brightness LED circuit light board 5; each parallel circuit is formed by 8 lamp beads connected in series, and the 90 parallel circuits are directly powered by a 24V driving power supply after being connected in parallel; the lamp bead model is 2835; through the circuit design of 8 series and 90 parallels, the number of lamp beads connected in series on the parallel circuit is reduced, the power supply voltage requirement is reduced, and no boost board is required, and it can be directly powered by a 24V lamp board driving power supply, saving resources and reducing the loss of electronic components.
[0027] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. A sun-proof outdoor liquid crystal display device, characterized in that: include: Aluminum profile frame (1), liquid crystal glass (2), heat-insulating tempered glass (3), optical module assembly (4), high-brightness LED circuit light board (5), rear cover (6) and electrical maintenance control box (7); The front end surface of the aluminum profile frame (1) is sequentially mounted with liquid crystal glass (2) and heat-insulating tempered glass (3) from the inside to the outside; the inner side of the aluminum profile frame (1) is sequentially mounted with an optical module assembly (4) and a high-brightness LED circuit light board (5) from the front to the back; the back cover (6) is mounted on the rear end surface of the aluminum profile frame (1); The back cover (6) is provided with a plurality of air holes A (61) in a matrix; a cover plate (62) is installed on the inner side of the back cover (6); the cover plate (62) covers all the air holes A (61); a plurality of air holes B (621) are provided on the cover plate (62) in a matrix; a waterproof breathable membrane for covering all the air holes B (621) is attached to the inner side of the cover plate (62).
2. A sun-proof outdoor liquid crystal display device according to claim 1, characterized in that: The front end surface of the aluminum profile frame (1) is provided with an annular groove A (11); the liquid crystal glass (2) and the heat-insulating tempered glass (3) are sequentially installed in the annular groove A (11) from the inside to the outside.
3. A sun-proof outdoor liquid crystal display device according to claim 2, characterized in that: An annular groove B (12) is provided on the rear end surface of the aluminum profile frame (1); the rear cover (6) is installed in the annular groove B (12).
4. A sun-proof outdoor liquid crystal display device according to claim 3, characterized in that: An annular groove C (13) is provided on the rear end surface of the aluminum profile frame (1); the high-brightness LED circuit light board (5) is installed in the annular groove C (13).
5. The sun-proof outdoor liquid crystal display device according to claim 4, characterized in that: An annular groove D (14) is formed on the bottom surface of the annular groove B (12); the optical module assembly (4) is installed in the annular groove D (14).
6. A sun-proof outdoor liquid crystal display device according to claim 5, characterized in that: The high-brightness LED circuit light board (5) is provided with 90 parallel circuits connected in parallel with each other; each parallel circuit is formed by 8 lamp beads connected in series, and the 90 parallel circuits are directly powered by a 24V driving power supply after being connected in parallel; the lamp bead model is 2835.