Modular outdoor liquid crystal display

Abstract

The application discloses a kind of modular outdoor liquid crystal display, it is related to display screen technical field.It includes main frame and liquid crystal display main body, it is characterized in that: still include the composite module in the middle part of main frame, and composite module overall covers the front and back corresponding area of liquid crystal display main body, the connecting place of liquid crystal display main body and composite module is provided with display screen installation positioning assembly;Heat dissipation fan and main control module are installed in the back of composite module, and heat dissipation fan and main control module are electrically connected between.The application realizes protection, heat dissipation, maintenance collaborative optimization, disassembly and assembly are convenient, energy consumption is low, protection performance is excellent, adapts to various outdoor extreme environment, can be widely applied in outdoor advertising, public information display and the like scene.

Description

Technical Field

[0001] This invention relates to the field of display technology, specifically to a modular outdoor liquid crystal display screen. Background Technology

[0002] Outdoor LCD displays, due to their complex operating environments, must simultaneously meet multiple requirements such as anti-glare, UV resistance, waterproofing, dustproofing, and high-temperature heat dissipation. Existing technologies often employ a "stacked independent components" design, where the weather protection structure and heat dissipation structure are separately mounted on the front and back of the screen, which has certain shortcomings. The existing anti-glare and weather-resistant layers of outdoor screens are mostly integrated fixed structures that are directly attached to the surface of the LCD display panel. When damaged, the entire screen needs to be replaced, which is costly to maintain and cannot be disassembled separately. Traditional structural disassembly and assembly processes are cumbersome, requiring professionals to use various tools to operate the protective and heat dissipation components separately. Each maintenance is time-consuming and results in significant downtime losses. Furthermore, the heat dissipation structure is mostly designed with a fixed rotation speed, which cannot be dynamically adjusted according to real-time outdoor temperature differences. In extreme high and low temperature environments, it is prone to insufficient heat dissipation or energy waste, further shortening the overall lifespan of the display screen.

[0003] Therefore, there is an urgent need for an integrated and collaborative modular structure to improve the overall performance of outdoor LCD displays. Summary of the Invention

[0004] The purpose of this invention is to provide a modular outdoor liquid crystal display screen to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a modular outdoor liquid crystal display screen, comprising a main frame and a liquid crystal display body, characterized in that: it further comprises a composite module located in the middle of the main frame, and the composite module covers the front and back corresponding areas of the liquid crystal display body, and a display screen mounting and positioning component is provided at the connection between the liquid crystal display body and the composite module; A cooling fan and a main control module are installed on the back of the composite module, and the cooling fan and the main control module are electrically connected. The main control module is equipped with a temperature sensor, a control circuit board and a signal processing unit, and the temperature sensor is embedded inside the composite module. A composite module mounting and positioning component is installed at the connection between the composite module and the main frame. A back panel installed on the back of the main frame to provide protection.

[0006] In a modular outdoor LCD display according to an embodiment of the present invention, the composite module includes a back heat dissipation layer and a front protective layer. A support strip is integrally connected to the middle of the back heat dissipation layer. The front protective layer is a three-layer composite coated tempered glass structure, wherein the outer layer is an anti-glare nano-coating, the middle layer is an ultraviolet blocking layer, and the inner layer is a waterproof sealing layer.

[0007] In a modular outdoor LCD display according to an embodiment of the present invention, a dovetail tenon and a dovetail groove are provided at the connection between the front protective layer and the back heat dissipation layer, and the internal cross-sectional area of ​​the front protective layer is larger than the internal cross-sectional area of ​​the back heat dissipation layer.

[0008] In a modular outdoor LCD display according to an embodiment of the present invention, a drainage channel is provided on one side of the main frame, and the openings at both ends of the drainage channel face the two sides of the main frame. A guide slope is provided inside the drainage channel, and the middle of the guide slope is raised to quickly drain surface condensate or rainwater.

[0009] In a modular outdoor LCD display according to an embodiment of the present invention, a solar panel is installed on the top of the main frame, and the solar panel is electrically connected to the main control module. A battery is installed inside the main control module, and a sealing ring is provided inside the main frame, and the sealing ring is attached to the outer edge of the front protective layer.

[0010] In a modular outdoor LCD display according to an embodiment of the present invention, the display installation and positioning component includes a connecting plate fixed to the back of the LCD display body, and the number of connecting plates is equal to the number of LCD display bodies. The heat dissipation layer on the back is provided with a card block and an electromagnet. A magnetic groove and a card slot are provided on one side of the connecting plate. The magnetic groove is adapted to the electromagnet, and the card slot is adapted to the card block. The electromagnet is electrically connected to the main control module.

[0011] In a modular outdoor LCD display according to an embodiment of the present invention, the composite module mounting and positioning component includes a movable groove formed on the back of the heat dissipation layer, and the side profile of the movable groove is an "L" shaped structure. A positioning pin is adapted to be connected inside the movable groove. A support spring is provided between the positioning pin and the movable groove. A hand-held groove is formed on the outer side of the positioning pin. A positioning groove adapted to the positioning pin is formed on the inner wall of the main frame.

[0012] In a modular outdoor LCD display according to an embodiment of the present invention, an air outlet plate is provided on the bottom side of the main frame near the back panel, and a dustproof net is provided at the bottom of the air outlet plate.

[0013] The above solution requires the following steps: First, when the LCD display body needs to be installed, lay the heat dissipation layer on the back flat, align the magnetic groove on the connecting plate side of the LCD display body with the electromagnet, and at the same time, the slot is inserted by the card block. After one set of LCD display bodies is installed, install the remaining LCD display bodies one by one, and use the support strip to block between the upper and lower sets of LCD display bodies. Next, the front protective layer is secured along the back heat dissipation layer. Since the internal volume of the front protective layer is larger than that of the back heat dissipation layer, the front protective layer can be staggered along the back heat dissipation layer so that the top and bottom edges of the back heat dissipation layer and the front protective layer fit together. Then, the front protective layer is moved along the outside of the back heat dissipation layer so that the dovetail tenons and dovetail grooves on both sides are fitted and installed until the outer edges of the front protective layer and the back heat dissipation layer are level. Meanwhile, in certain specific situations, such as when the operating environment is small and the main frame is not suitable for laying flat, and the LCD display body needs to be erected before the front protective layer can be installed, multiple LCD display bodies can be adsorbed inside the back heat dissipation layer to ensure their stability. When the LCD display body is then erected, the support bars prevent the upper LCD display body from squeezing the lower LCD display body. At the same time, the main control module activates all the electromagnets, which attract the magnetic slots and the connecting plate and LCD display body, ensuring the stability of the LCD display body after it is erected. Finally, the combination of the back heat dissipation layer and the front protective layer is moved in and out along the inside of the main frame. At the same time, the four sets of positioning pins are moved along the inside of the moving grooves. The ends of the positioning pins are put into the moving grooves, so that one end of the front protective layer contacts the front end of the main frame and the sealing ring is squeezed to seal it. At this time, the moving groove and the positioning groove are aligned. Under the support of the support spring, the positioning pins are squeezed into the inside of the positioning grooves, thereby fixing the composite module as a whole.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the modular outdoor liquid crystal display screen: 1. The composite module integrates the back heat dissipation layer and the front protective layer. The front protective layer adopts a detachable dovetail structure, which can be disassembled and replaced separately when damaged, without replacing the entire screen, reducing maintenance costs by more than 60%. At the same time, the display screen mounting and positioning components use magnetic attraction and buckle dual positioning, and the composite module mounting and positioning components adopt a spring positioning pin structure, which can be disassembled and installed without professional tools, reducing the time required for each maintenance and significantly reducing downtime losses.

[0015] 2. The main control module collects the screen temperature in real time through a temperature sensor and dynamically adjusts the cooling fan speed according to a preset threshold to achieve adaptive control of low speed at low temperatures and high speed at high temperatures. This avoids the problem of insufficient heat dissipation under extreme high temperatures and reduces energy waste under normal temperature conditions.

[0016] 3. The three-layer composite coating structure of the front protective layer achieves anti-glare, UV resistance, and waterproofing functions. Combined with the drainage channel and sealing ring of the main frame, the waterproof and dustproof rating can reach IP65. The aluminum alloy material and support strip structure of the back heat dissipation layer not only ensure heat dissipation efficiency but also effectively protect the LCD display body, making it fully adaptable to complex outdoor environments.

[0017] 4. The top solar panel, in conjunction with the built-in lithium battery pack, can provide backup power, ensuring the operation of core components even in the event of a power outage or when there is no power supply outdoors; the modular structure allows for easy expansion of the number and size of the LCD display units as needed, adapting to different outdoor display scenarios and offering high flexibility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a modular outdoor liquid crystal display screen provided in one embodiment of this application; Figure 2 This is a schematic diagram of the partially disassembled structure of the present invention; Figure 3 yes Figure 1 A partial exploded view; Figure 4 yes Figure 3 Another perspective view; Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial cross-sectional view of the present invention; Figure 7 yes Figure 6 Enlarged diagram of point B in the middle.

[0019] In the picture: 1. Main frame; 11. Drainage channel; 12. Solar panel; 13. Sealing ring; 2. Composite module; 21. Back heat dissipation layer; 22. Front protective layer; 221. Anti-glare nano coating; 222. Ultraviolet blocking layer; 223. Waterproof sealing layer; 3. LCD display body; 31. Support bar; 4. Display screen mounting and positioning assembly; 41. Connecting plate; 42. Electromagnet; 43. Card block; 44. Magnetic groove; 45. Card slot; 5. Cooling fan; 6. Composite module mounting and positioning assembly; 61. Moving groove; 62. Positioning pin; 63. Positioning groove; 7. Main control module; 71. Temperature sensor; 8. Back plate; 9. Air outlet plate. Detailed Implementation

[0020] 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.

[0021] Example: Please see Figure 1-7 The present invention provides a technical solution: a modular outdoor liquid crystal display screen, comprising: The composite module 2 is located in the middle of the main frame 1, covering the front and back of the LCD display body 3, and integrating protection and heat dissipation functions. A display installation positioning component 4 is provided at the connection between the two to achieve quick positioning and fixation of the LCD display body 3. The cooling fan 5 and the main control module 7 are installed on the back of the composite module 2 and are electrically connected. The main control module 7 has a built-in temperature sensor 71, a control circuit board and a signal processing unit. The temperature sensor 71 is embedded in the composite module 2 to collect the screen temperature in real time. The composite module installation positioning component 6 is located at the connection between the composite module 2 and the main frame 1 to achieve quick assembly and disassembly. The back plate 8 is installed on the back of the main frame 1 and provides auxiliary protection against dust, water and impact.

[0022] Furthermore, the composite module 2 includes a back heat dissipation layer 21 and a front protective layer 22: the back heat dissipation layer 21 is an integrated aluminum alloy structure with an integrated support strip 31 in the middle, used to separate and support multiple liquid crystal display bodies 3 to avoid interlayer compression; the front protective layer 22 is a three-layer composite coated tempered glass, the outer anti-glare nano coating 221 can achieve ≥90% light transmittance and ≤10% reflectivity; the middle layer is a titanium oxide and silicon oxide composite ultraviolet blocking layer 222 with a blocking rate of ≥99%; the inner silicone sealant waterproof sealing layer 223 improves the overall sealing performance.

[0023] The front protective layer 22 and the back heat dissipation layer 21 are joined together by edge dovetail tenons and dovetail grooves, which fit tightly and are easy to assemble and disassemble.

[0024] The main frame 1 is welded from stainless steel. A trapezoidal drainage channel 11 is provided on one side, with openings at both ends facing the sides of the frame. The interior is provided with a central raised drainage slope, which can quickly drain condensate and rainwater and prevent water from seeping in.

[0025] The top of the main frame 1 is fitted with a monocrystalline silicon solar panel 12, which is electrically connected to the main control module 7. The main control module 7 has a built-in lithium battery pack that stores solar energy and provides backup power for the cooling fan 5, electromagnet 42, etc. Inside the main frame 1, there is a circular EPDM rubber sealing ring 13 that fits against the outer edge of the front protective layer 22, achieving a sealed fit between the composite module 2 and the main frame 1. A baffle is provided at the front end to prevent the front protective layer 22 from shifting out.

[0026] The display installation and positioning component 4 includes a connecting plate 41 fixed to the back of the LCD display body 3 by bolts; a card block 43 and an electromagnet 42 are provided at the corresponding position of the heat dissipation layer 21 on the back; a matching magnetic groove 44 and a card slot 45 are provided on one side of the connecting plate 41; the electromagnet 42 is electrically connected to the main control module 7; and the LCD display body 3 can be quickly fixed and disassembled by on / off control.

[0027] The composite module mounting and positioning component 6 includes four sets of "L"-shaped moving slots 61 at the four corners of the back heat dissipation layer 21, which are internally fitted with stainless steel positioning pins 62. A support spring is set between the two, and in the natural state, the end of the positioning pin 62 extends out of the moving slot 61. A 2-3cm wide hand slot is provided on the outside of the positioning pin 62 for easy manual extension and retraction. A positioning slot 63 is opened at the corresponding position on the inner side of the main frame 1, which is fitted with the end of the positioning pin 62 to achieve precise fixation of the composite module 2.

[0028] A perforated air vent plate 9 is installed at the bottom of the main frame 1 near the back plate 8, and a 100-120 mesh stainless steel wire mesh dustproof net is installed at the bottom to block dust without affecting the heat dissipation airflow. The back plate 8 is made of aluminum alloy and is fixed to the main frame 1 with bolts.

[0029] It should be noted that the assembly steps for the display screen are as follows: The first step is for the user to lay out the back heat dissipation layer 21, align the back connecting plates 41 of the multiple LCD display bodies 3 with the corresponding positions, and push in and lock the magnetic slots 44 and card slots 45 with the electromagnets 42 and card blocks 43 respectively; the electromagnets 42 are connected by the main control module 7 to be attracted and fixed, and the upper and lower screens are separated by the support strips 31 to avoid squeezing.

[0030] The second step is to move the front protective layer 22 above the back heat dissipation layer 21, and place it in a staggered position so that the edge of the back heat dissipation layer 21 is embedded in the inside. Then, move it horizontally and adjust it so that the dovetail tenon and the dovetail groove are aligned and fit together until the outer edges of the two are flush, thus completing the sealing and covering.

[0031] Third step, press the four corner positioning pins 62 of the composite module 2 to make it retract into the moving groove 61, push the composite module 2 into the main frame 1 until the front protective layer 22 abuts against the frame retainer and the back heat dissipation layer 21 fits against the sealing ring 13; release the positioning pins 62 so that they are locked into the positioning groove 63 under the action of the spring, and complete the fixation.

[0032] The fourth step is to fix the cooling fan 5 and the main control module 7 to the back of the composite module 2, ensuring that the temperature sensor 71 is embedded in the heat dissipation layer; install the top solar panel 12 and connect the wiring, and finally fix the back plate 8 to complete the overall assembly.

[0033] It should be noted that during actual use of the display screen, the temperature sensor 71 is connected to the back heat dissipation layer 21 to collect the temperature of the liquid crystal display body 3. The preset temperature adjustment threshold is: when the temperature is ≤40℃, the speed of the cooling fan 5 is 600r / min; when the temperature is 40-60℃, the speed is linearly adjusted; and when the temperature is ≥60℃, the speed of the cooling fan 5 is 1800r / min. The three-layer composite coating tempered glass structure inside the front protective layer 22 ensures that the ultraviolet blocking layer has an ultraviolet blocking rate of ≥99% and excellent anti-glare effect. Combined with the temperature adaptive heat dissipation of the main control module LCD display body 3, it can adapt to extreme outdoor environments from -40℃ to 70℃.

[0034] The display screen maintains a stable surface temperature of less than 55°C even in a high-temperature environment of 70°C. The anti-glare nano-coating 221 has a good anti-glare effect with no obvious reflected light spots. The drainage channel 11 can quickly drain rainwater in rainy weather.

[0035] 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 alterations 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. A modular outdoor liquid crystal display screen, comprising a main frame (1) and a liquid crystal display body (3), characterized in that: Also includes: The composite module (2) is located in the middle of the main frame (1), and the composite module (2) covers the front and back corresponding areas of the liquid crystal display body (3). A display screen mounting and positioning component (4) is provided at the connection between the liquid crystal display body (3) and the composite module (2). A cooling fan (5) and a main control module (7) are installed on the back of the composite module (2), and the cooling fan (5) and the main control module (7) are electrically connected. The main control module (7) is equipped with a temperature sensor (71), a control circuit board and a signal processing unit, and the temperature sensor (71) is embedded inside the composite module (2). A composite module mounting positioning component (6) is set at the connection between the composite module (2) and the main frame (1). A backplate (8) installed on the back of the main frame (1) to provide protection.

2. The modular outdoor LCD display screen according to claim 1, characterized in that: The composite module (2) includes a back heat dissipation layer (21) and a front protective layer (22). The back heat dissipation layer (21) is integrally connected with a support strip (31) in the middle. The front protective layer (22) is a three-layer composite coating tempered glass structure, wherein the outer layer is an anti-glare nano coating (221), the middle layer is an ultraviolet blocking layer (222), and the inner layer is a waterproof sealing layer (223).

3. A modular outdoor LCD display screen according to claim 2, characterized in that: The connection between the front protective layer (22) and the back heat dissipation layer (21) is provided with a dovetail tenon and a dovetail groove, and the internal cross-sectional area of ​​the front protective layer (22) is larger than the internal cross-sectional area of ​​the back heat dissipation layer (21).

4. A modular outdoor LCD display screen according to claim 1, characterized in that: A drainage channel (11) is provided on one side of the main frame (1), and the openings at both ends of the drainage channel (11) face the two sides of the main frame (1). A guide slope is provided inside the drainage channel (11), and the middle part of the guide slope is raised to quickly drain surface condensate or rainwater.

5. A modular outdoor LCD display screen according to claim 1, characterized in that: A solar panel (12) is installed on the top of the main frame (1), and the solar panel (12) is electrically connected to the main control module (7). A battery is installed inside the main control module (7), and a sealing ring (13) is provided inside the main frame (1), and the sealing ring (13) is attached to the outer edge of the front protective layer (22).

6. A modular outdoor LCD display screen according to claim 2, characterized in that: The display screen mounting and positioning component (4) includes a connecting plate (41) fixed to the back of the liquid crystal display body (3), and the number of connecting plates (41) is equal to the number of liquid crystal display bodies (3). The back heat dissipation layer (21) is provided with a card block (43) and an electromagnet (42). A magnetic suction groove (44) and a card slot (45) are provided on one side of the connecting plate (41). The magnetic suction groove (44) is compatible with the electromagnet (42), and the card slot (45) is compatible with the card block (43). The electromagnet (42) is electrically connected to the main control module (7).

7. A modular outdoor LCD display screen according to claim 1, characterized in that: The composite module mounting and positioning component (6) includes a movable groove (61) opened on the back of the heat dissipation layer (21), and the side profile of the movable groove (61) is an "L" shaped structure. The movable groove (61) is internally fitted with a positioning pin (62). A support spring is provided between the positioning pin (62) and the movable groove (61). A hand-held groove is opened on the outer side of the positioning pin (62). The inner wall of the main frame (1) is provided with a positioning groove (63) that is adapted to the positioning pin (62).

8. A modular outdoor LCD display screen according to claim 1, characterized in that: An air outlet plate (9) is provided on the bottom side of the main frame (1) near the back plate (8), and a dustproof net is provided at the bottom of the air outlet plate (9).

Images