Outdoor liquid crystal display screen

Abstract

The utility model discloses an outdoor liquid crystal display, it includes the outer frame, the bottom of outer frame is provided with the support structure, the front of inside the outer frame is provided with display screen main part, through setting adaptive heat radiation subassembly and sealed moistureproof structure, adaptive heat radiation subassembly is welded in the inside of outer frame through the frame, and the frame front side is connected with the rear side of display screen main part, provides stable support for display screen main part while not affecting heat conduction, and the heat dissipation fin of display screen main part rear side can export the heat of work fast, and temperature sensor monitors temperature change in real time and will data transmission give controller, and controller is accurately adjusted according to temperature situation the heat dissipation fan work state on the fan plate in rear housing, realizes heat to need to radiate, avoided single heat dissipation structure low efficiency, cannot adaptive defect, prevent heat to accumulate in the inside, reduced display screen main part dead machine, display lagging behind the situation, delayed the ageing of internal electronic component.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display equipment technology, and in particular to an outdoor liquid crystal display screen. Background Technology

[0002] Outdoor LCD displays are widely used in advertising, information dissemination, public announcements and other scenarios. They need to be exposed to the open environment for a long time and face multiple challenges such as high temperature, rain, dust and direct sunlight.

[0003] Currently, existing outdoor LCD displays suffer from the following problems during use: In high-temperature outdoor summer environments, the heat generated by the display body during operation is superimposed on the heat from the external environment. Existing heat dissipation structures are mostly single ventilation holes or fixed-speed fans, which have low heat dissipation efficiency and cannot adapt to temperature changes. This leads to heat accumulation inside, which not only easily causes the display to crash and freeze, but also accelerates the aging of internal electronic components and significantly shortens the lifespan of the display. At the same time, some heat dissipation structures conflict with the sealing design. Increasing the area of ​​ventilation holes to improve heat dissipation reduces the sealing and moisture-proof performance, allowing rainwater and moisture to easily penetrate the interior and cause short circuits. Existing technologies cannot meet the dual requirements of efficient heat dissipation and reliable sealing. Therefore, an outdoor LCD display is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The main purpose of this utility model is to provide an outdoor LCD display screen, aiming to solve the following problems existing in the use of existing outdoor LCD displays: In the high temperature environment of outdoor summer, the heat generated by the display screen when it is working is superimposed with the heat of the external environment. Existing heat dissipation structures are mostly single heat dissipation holes or fixed speed fans, which have low heat dissipation efficiency and cannot adapt to temperature changes. This causes heat to accumulate inside, which not only easily causes the display screen to crash and freeze, but also accelerates the aging of internal electronic components and significantly shortens the service life of the display screen. At the same time, some heat dissipation structures conflict with the sealing design. Increasing the area of ​​ventilation holes to improve the heat dissipation effect will reduce the sealing and moisture-proof performance, allowing rainwater and moisture to easily enter the interior and cause short circuit failures. Existing technologies cannot meet the dual requirements of efficient heat dissipation and reliable sealing.

[0005] To achieve the above objectives, the present invention proposes an outdoor LCD display screen including an outer frame, a support structure at the bottom of the outer frame, a display screen body inside the front of the outer frame, an anti-glare panel covering the front of the display screen body, a controller on the left side of the outer frame, adaptive heat dissipation components on the rear and top of the outer frame, and a sealed moisture-proof structure on both the inside and outside of the outer frame. The adaptive heat dissipation component includes a frame welded inside the outer frame, the front side of the frame being bolted to the rear side of the display screen body, a temperature sensor being provided on the rear side of the display screen body, heat dissipation fins being fixedly connected to the rear side of the display screen body, a back shell being welded to the rear side of the outer frame, a fan plate being embedded in the bottom side inside the back shell, a plurality of cooling fans being embedded inside the fan plate, and a light sensor being provided on the top of the outer frame.

[0006] Preferably, the sealing and moisture-proof structure includes a slot formed in the inner wall of the outer frame, a foamed silicone strip embedded in the slot, the inner side of the foamed silicone strip being tightly fitted to the outer side of the display body and the anti-glare panel, a cavity being formed inside the outer frame, and waterproof and breathable valves being threaded to both sides of the outer frame, the waterproof and breathable valves being connected to the cavity.

[0007] Preferably, the support structure includes adjustable pillars disposed on both sides of the bottom of the outer frame, a connecting plate welded to the top of the adjustable pillar, the top of the connecting plate being bolted to the bottom of the outer frame, and a mounting plate welded to the bottom of the adjustable pillar.

[0008] Preferably, the contact surface between the anti-glare panel and the outer frame is coated with a sealant, which is a neutral weather-resistant silicone sealant.

[0009] Preferably, an observation plate is embedded in the rear side of the rear shell, and the observation plate is made of transparent acrylic material.

[0010] Preferably, a protective mesh is bolted to the bottom of the rear shell, and the protective mesh is located at the bottom of the cooling fan.

[0011] Preferably, air supply grooves are provided on both sides of the rear shell, and the air supply grooves are inclined from top to bottom.

[0012] Preferably, a dust filter is fixedly connected to the outer side of the air supply trough, and the dust filter has an aperture of 0.8mm.

[0013] In this invention, an adaptive heat dissipation component and a sealed moisture-proof structure are used. The adaptive heat dissipation component is welded to the inside of the outer frame, and the front of the frame is bolted to the rear of the display screen body. This provides stable support for the display screen body without affecting heat conduction. The heat dissipation fins on the rear of the display screen body can quickly dissipate the heat generated during operation. A temperature sensor monitors temperature changes in real time and transmits the data to the controller. The controller precisely adjusts the working state of the cooling fan on the fan plate inside the rear shell according to the temperature, achieving heat dissipation on demand. This avoids the shortcomings of low efficiency and lack of self-adaptability of a single heat dissipation structure, prevents heat accumulation inside, and reduces display screen crashes and display lag. This design slows down the aging of internal electronic components and extends the lifespan of the display screen. The light sensor on the top of the outer frame works in conjunction with the controller to adjust the brightness of the display screen according to the ambient light conditions, balancing viewing effect and energy consumption. The sealed and moisture-proof structure solves the conflict between heat dissipation and sealing. Through its own structural characteristics, it prevents rainwater and moisture from entering the interior, avoiding short circuit failures caused by increasing the ventilation area due to heat dissipation requirements. At the same time, it ensures internal air pressure balance and prevents the sealing structure from failing, allowing the display screen to work stably in outdoor humid environments. All the structures work together to fully adapt to complex outdoor environments such as high temperature, strong light, and rain, ensuring the long-term stable operation of the display screen. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the outer frame structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the adaptive heat dissipation component structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the sealing and moisture-proof structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the rear shell structure of an embodiment of the present utility model. Figure 6 This is a schematic diagram of the support structure according to an embodiment of the present utility model.

[0016] Reference numerals: 1. Outer frame; 2. Support structure; 201. Adjustable support column; 202. Connecting plate; 203. Mounting plate; 3. Display screen body; 4. Anti-glare panel; 5. Controller; 6. Adaptive heat dissipation component; 601. Frame; 602. Temperature sensor; 603. Heat dissipation fins; 604. Rear shell; 605. Fan plate; 606. Cooling fan; 607. Light sensor; 7. Sealed and moisture-proof structure; 701. Slot; 702. Foamed silicone strip; 703. Cavity; 704. Waterproof and breathable valve; 8. Sealant; 9. Observation plate; 10. Protective net; 11. Air supply channel; 12. Dust trap.

[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0020] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] This utility model provides an outdoor LCD display screen, aiming to solve the following problems existing in the use of outdoor LCD displays: In the high temperature environment of summer, the heat generated by the display screen during operation is superimposed with the heat of the external environment. Existing heat dissipation structures are mostly single heat dissipation holes or fixed speed fans, which have low heat dissipation efficiency and cannot adapt to temperature changes. This causes heat to accumulate inside, which not only easily causes the display screen to crash and freeze, but also accelerates the aging of internal electronic components and significantly shortens the service life of the display screen. At the same time, some heat dissipation structures conflict with the sealing design. Increasing the area of ​​ventilation holes to improve the heat dissipation effect will reduce the sealing and moisture-proof performance, allowing rainwater and moisture to easily enter the interior and cause short circuit failures. Existing technologies cannot meet the dual requirements of efficient heat dissipation and reliable sealing.

[0023] like Figure 1-6 As shown, an outdoor LCD display screen provided by this utility model embodiment includes an outer frame 1, a support structure 2 at the bottom of the outer frame 1, a display screen body 3 on the front side inside the outer frame 1, an anti-glare panel 4 covering the front side of the display screen body 3, a controller 5 on the left side of the outer frame 1, adaptive heat dissipation components 6 on the rear and top sides of the outer frame 1, and a sealing and moisture-proof structure 7 on the inside and outside of the outer frame 1. The adaptive heat dissipation component 6 includes a frame 601 welded inside the outer frame 1. The front side of the frame 601 is bolted to the rear side of the display body 3. A temperature sensor 602 is provided on the rear side of the display body 3. A heat dissipation fin 603 is fixedly connected to the rear side of the display body 3. A back shell 604 is welded to the rear side of the outer frame 1. A fan plate 605 is embedded in the bottom side inside the back shell 604. Several cooling fans 606 are embedded inside the fan plate 605. A light sensor 607 is provided on the top of the outer frame 1.

[0024] In the technical solution of this utility model, by setting an outer frame 1, a support structure 2, a display screen body 3, an anti-glare panel 4, a controller 5, an adaptive heat dissipation component 6, and a sealed moisture-proof structure 7, the outer frame 1 serves as the installation foundation of the entire device, integrating the support structure 2, the display screen body 3, the controller 5, the adaptive heat dissipation component 6, and the sealed moisture-proof structure 7 into one unit, ensuring that each component is installed stably and in precise positions. The support structure 2 at the bottom of the outer frame 1 provides stable support for the device, allowing the display screen to be placed stably in different outdoor installation scenarios, avoiding the impact of unstable placement on operation. When the display screen is started, the display screen body 3 on the front side inside the outer frame 1, as the core component, begins to perform display work. The anti-glare panel 4 covering the front can directly block direct sunlight from strong outdoor light, reducing reflection interference and allowing viewers to clearly see the displayed content even in sunlight. Simultaneously, the light sensor 607 at the top of the outer frame 1 detects the ambient light intensity in real time and transmits the detected signal to the controller 5 on the left side of the outer frame 1. The controller 5 automatically adjusts the brightness of the display body 3 based on the light data, ensuring both viewing clarity and preventing excessive energy consumption due to excessive brightness. When the display body 3 generates heat during operation, the adaptive heat dissipation component 6 comes into play. The frame 601, bolted to the rear of the display body 3, provides additional stable support for the display body 3 while not hindering heat conduction. The heat dissipation fins 603 fixedly connected to the rear of the main body 3 can quickly conduct and diffuse the heat generated by the main body. The temperature sensor 602 on the rear of the display body 3 monitors the heat changes in real time and transmits the temperature data to the controller 5. The controller 5 precisely adjusts the working status of several cooling fans 606 on the inner fan plate 605 of the rear shell 604 of the outer frame 1 according to the temperature. When the temperature is low, the fan speed can be reduced or stopped. When the temperature rises, the speed can be increased. The fan rotation accelerates the air circulation and quickly removes the heat from the heat dissipation fins 603, preventing heat from accumulating inside. At the same time, the sealed moisture-proof structure 7 inside and outside the outer frame 1 always plays a protective role. Its inner side is in close contact with the outer side of the display body 3 and the anti-glare panel 4, which can effectively block outdoor rain and moisture from entering the device and prevent internal electronic components from being damaged by short circuits due to moisture. Moreover, the sealed moisture-proof structure 7 ensures the sealing performance without affecting the airflow of the adaptive heat dissipation component 6, realizing the coordinated work of heat dissipation and sealing. During the entire operation, the controller 5, as the core control component, coordinates the work of the display body 3, the light sensor 607, the temperature sensor 602 and the cooling fan 606. The various structures cooperate with each other and are connected in a coherent manner, which not only solves the impact of outdoor strong light, high temperature and humidity, but also allows the display body 3 to operate stably for a long time.

[0025] Please refer to the following: Figure 4The sealing and moisture-proof structure 7 includes a slot 701 opened in the inner wall of the outer frame 1. A foamed silicone strip 702 is embedded in the slot 701. The inner side of the foamed silicone strip 702 is tightly fitted to the outer side of the display body 3 and the anti-glare panel 4. A cavity 703 is opened in the inner side of the outer frame 1. Waterproof and breathable valves 704 are threaded to both sides of the outer frame 1. The waterproof and breathable valves 704 are connected to the cavity 703. In this embodiment, by setting a sealing and moisture-proof structure 7, the slot 701 on the inner wall of the outer frame 1 provides a stable installation position for the foamed silicone strip 702, allowing the foamed silicone strip 702 to be tightly embedded in the slot 701. Its inner side is firmly attached to the outer side of the display body 3 and the anti-glare panel 4, forming the first sealing barrier, effectively preventing outdoor rainwater and moisture from entering from the component connection. The cavity 703 opened inside the outer frame 1 reserves space for air pressure balance, and the waterproof and breathable valves 704 threaded on both sides of the outer frame 1 are connected to the cavity 703. This allows the internal air to circulate with the outside, balances the positive and negative air pressure generated by temperature changes, and avoids the sealing structure from deforming and failing due to air pressure difference. It also prevents external moisture from entering, ensuring the sealing and moisture-proof effect without affecting the heat dissipation airflow circulation inside the device.

[0026] For further information, please continue to refer to [link / reference]. Figure 6 The support structure 2 includes adjustable pillars 201 located on both sides of the bottom of the outer frame 1. A connecting plate 202 is welded to the top of each adjustable pillar 201, and the top of the connecting plate 202 is bolted to the bottom of the outer frame 1. A mounting plate 203 is welded to the bottom of the adjustable pillar 201. In this embodiment, by setting up the support structure 2 and bolting the connecting plate 202 at the top of the adjustable pillar 201 to the bottom of the outer frame 1, the adjustable pillar 201 can stably support the outer frame 1 and all internal components, ensuring that the overall structure does not shake. The adjustable pillar 201 can be adjusted in height according to the terrain of the outdoor installation scene to adapt to different installation surfaces. Furthermore, the mounting plate 203 welded to the bottom is fixed to the ground or installation platform, increasing the contact area with the installation surface and further improving support stability. Thus, regardless of whether the ground in the outdoor installation environment is flat, the adjustable pillar 201 can be adjusted to keep the outer frame 1 level, ensuring accurate installation of components such as the display body 3 and the anti-glare panel 4, and avoiding the impact of tilt on the display effect or uneven stress on the components.

[0027] Please continue to refer to this. Figure 2 The contact surface between the anti-glare panel 4 and the outer frame 1 is coated with sealant 8, which is a neutral, weather-resistant silicone sealant. In this embodiment, by setting the sealant 8, which is applied to the contact surface between the anti-glare panel 4 and the outer frame 1, it fills the tiny gaps and forms a secondary seal. It has good adhesion and weather resistance, which can enhance the tightness of the connection, prevent moisture from seeping in, and improve the overall sealing effect when combined with the sealing and moisture-proof structure 7.

[0028] Please refer to Figure 3An observation plate 9 is embedded in the rear side of the rear shell 604. The observation plate 9 is made of transparent acrylic material. In this embodiment, by setting the observation plate 9, the transparent acrylic observation plate 9 on the rear side of the rear shell 604 allows the staff to check the working status of the internal fan plate 605 and cooling fan 606 without disassembling the rear shell 604. At the same time, it is sturdy and weather-resistant, which can protect the internal components from impact and rain, and is convenient for maintenance without compromising its protective properties.

[0029] Additionally, please refer to Figure 3 A protective net 10 is bolted to the bottom of the rear shell 604, and the protective net 10 is located at the bottom of the cooling fan 606. In this embodiment, by setting the protective net 10, the protective net 10 at the bottom of the rear shell 604 is located below the cooling fan 606, which can prevent leaves, stones and other debris from entering the rear shell 604, avoiding the cooling fan 606 from being stuck or damaged. It does not obstruct the airflow, ensuring the normal operation of the cooling fan 606 and the smooth heat dissipation channel.

[0030] Additionally, please refer to Figure 5 The rear shell 604 has air intake slots 11 on both sides, which are inclined from top to bottom. In this embodiment, by setting the air intake slots 11, the air intake slots 11 on both sides of the rear shell 604, which are inclined from top to bottom, provide sufficient air intake channels for the cooling fan 606, form a cooling airflow circulation, improve the cooling efficiency, and the inclined design can also prevent rainwater from flowing directly into the rear shell 604, thus taking into account both air intake and rain protection.

[0031] Additionally, please refer to Figure 5 A dust filter 12 is fixedly connected to the outer side of the air supply channel 11. The dust filter 12 has an aperture of 0.8mm. In this embodiment, by setting the dust filter 12, the 0.8mm aperture dust filter 12 on the outer side of the air supply channel 11 can filter dust, sand and other fine debris, preventing them from adhering to the surface of the heat sink fins 603 and the cooling fan 606 and affecting heat dissipation. It does not obstruct airflow, ensures stable heat dissipation, and extends the life of the components.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. An outdoor LCD display screen, characterized in that, The outdoor LCD display screen includes an outer frame (1), a support structure (2) at the bottom of the outer frame (1), a display screen body (3) inside the front of the outer frame (1), an anti-glare panel (4) covering the front of the display screen body (3), a controller (5) on the left side of the outer frame (1), adaptive heat dissipation components (6) on the rear and top of the outer frame (1), and a sealing and moisture-proof structure (7) on both the inside and outside of the outer frame (1). The adaptive heat dissipation component (6) includes a frame (601) welded inside the outer frame (1). The front side of the frame (601) is bolted to the rear side of the display body (3). A temperature sensor (602) is provided on the rear side of the display body (3). A heat dissipation fin (603) is fixedly connected to the rear side of the display body (3). A back shell (604) is welded to the rear side of the outer frame (1). A fan plate (605) is embedded in the bottom side inside the back shell (604). Several cooling fans (606) are embedded inside the fan plate (605). A light sensor (607) is provided on the top of the outer frame (1).

2. An outdoor liquid crystal display screen according to claim 1, characterized in that, The sealing and moisture-proof structure (7) includes a slot (701) opened on the inner wall of the outer frame (1). A foamed silicone strip (702) is embedded in the slot (701). The inner side of the foamed silicone strip (702) is tightly fitted to the outer side of the display body (3) and the anti-glare panel (4). A cavity (703) is opened in the inner side of the outer frame (1). Waterproof and breathable valves (704) are threaded on both sides of the outer frame (1). The waterproof and breathable valves (704) are connected to the cavity (703).

3. An outdoor liquid crystal display screen according to claim 1, characterized in that, The support structure (2) includes adjustable support columns (201) disposed on both sides of the bottom of the outer frame (1). A connecting plate (202) is welded to the top of the adjustable support column (201). The top of the connecting plate (202) is bolted to the bottom of the outer frame (1). An mounting plate (203) is welded to the bottom of the adjustable support column (201).

4. An outdoor liquid crystal display screen according to claim 1, characterized in that, The contact surface between the anti-glare panel (4) and the outer frame (1) is coated with sealant (8), which is a neutral weather-resistant silicone sealant.

5. An outdoor liquid crystal display screen according to claim 1, characterized in that, An observation plate (9) is embedded in the rear side of the rear shell (604), and the observation plate (9) is made of transparent acrylic material.

6. An outdoor liquid crystal display screen according to claim 1, characterized in that, A protective mesh (10) is bolted to the bottom of the rear shell (604), and the protective mesh (10) is located at the bottom of the cooling fan (606).

7. An outdoor liquid crystal display screen according to claim 1, characterized in that, Both sides of the rear shell (604) are provided with air supply grooves (11), and the air supply grooves (11) are inclined from top to bottom.

8. An outdoor liquid crystal display screen according to claim 7, characterized in that, A dust-blocking net (12) is fixedly connected to the outside of the air supply trough (11), and the aperture of the dust-blocking net (12) is 0.8 mm.

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