Efficient heat-conducting liquid crystal display (LCD) advertising machine

By using graphene thermally conductive sponge and double-layer heat-insulating glass in the LCD advertising machine, the problems of insufficient heat dissipation efficiency and external heat intrusion are solved, achieving efficient heat dissipation and compact structure, extending the service life of the equipment and improving maintenance convenience.

CN224082158UActive Publication Date: 2026-04-03SHENZHEN HAOMINGJIA TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

LCD advertising machines suffer from insufficient heat dissipation efficiency in high-temperature or dusty environments. External heat intrusion affects internal components, and the structural design leads to heat accumulation, making maintenance and operation cumbersome.

Method used

Graphene thermally conductive sponge is used to leave a gap between the backlight panel and the frame base plate to conduct heat. Double-layer heat-insulating glass is used to block external heat. The electrical box is placed on the frame base plate for easy installation and maintenance.

Benefits of technology

It improves heat dissipation efficiency, protects the display screen from high temperatures, extends service life, has a compact structure for easy maintenance, and enhances the safety and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an efficient heat conduction LCD advertising machine which comprises a frame body, heat insulation glass, an LCD display screen, a backlight plate, a plurality of graphene heat conduction sponges and an electric appliance box. The backlight plate and the LCD display screen are sequentially arranged in the frame body; the heat insulation glass is arranged at the opening of the frame body and is arranged right above the LCD display screen; a gap is reserved between a bottom plate of the frame body and the backlight plate, the graphene heat conduction sponge is arranged in the gap and used for conducting heat of the backlight plate to the bottom plate of the frame body, and the electric appliance box is externally arranged on the bottom plate of the frame body. The gap is reserved between the backlight plate and the bottom plate of the frame body, and the graphene heat conduction sponge is arranged, so that heat generated by the backlight plate can be effectively conducted and dissipated to the bottom plate of the frame body, the heat dissipation efficiency is improved, and stable operation of the display screen in a high-temperature environment is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of advertising machine technology, and in particular to an LCD advertising machine with high heat conduction. Background Technology

[0002] With the rapid development of digital media, LCD advertising displays, thanks to their high-definition display and dynamic content presentation capabilities, have been widely used in commercial, transportation hub, and public facilities scenarios. However, in practical applications, LCD advertising displays still face significant challenges:

[0003] Insufficient internal heat dissipation efficiency: During long-term operation, core components such as the backlight module and driving circuit will generate a large amount of heat. Traditional heat dissipation solutions (such as metal heat sinks) rely on passive heat conduction, which is inefficient. Especially in high-temperature or dusty environments, heat is easily trapped inside the device, leading to display color distortion and shortened component lifespan.

[0004] External heat intrusion: In outdoor or high-temperature scenarios, most existing advertising machines use ordinary glass as screen protection, which has insufficient heat insulation performance. This allows heat from the external environment to be conducted to the interior through the screen, further aggravating the temperature rise of the equipment and affecting the color consistency of the LCD display and the lifespan of components.

[0005] Structural design flaws: The enclosed design of the built-in electrical box makes it prone to localized heat accumulation, leading to decreased circuit stability; furthermore, maintenance requires disassembling the entire device, which is cumbersome. In addition, the traditional frame and backlight panel lack efficient heat conduction design, making it difficult to dissipate heat quickly and exacerbating the internal temperature rise problem. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides an LCD advertising machine with high-efficiency heat conduction.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] This utility model provides a high-efficiency heat-conducting LCD advertising machine, including: a frame, heat-insulating glass, an LCD display screen, a backlight panel, several graphene heat-conducting sponges, and an electrical box;

[0009] The backlight panel and the LCD display screen are sequentially arranged inside the frame; the heat-insulating glass is located at the opening of the frame and positioned directly above the LCD display screen.

[0010] A gap is reserved between the bottom plate of the frame and the backlight plate. The graphene thermally conductive sponge is placed in the gap and is used to conduct the heat of the backlight plate to the bottom plate of the frame. The electrical box is placed on the bottom plate of the frame.

[0011] Preferably, the heat-insulating glass has a double-layer structure with heat-insulating material filling the middle, and the heat-insulating material is aerogel or polyurethane foam.

[0012] Preferably, a step is provided inside the frame, and a groove is provided on the step near the inner wall of the frame.

[0013] Preferably, the heat-insulating glass is installed on the step, and when it is attached to the step, excess adhesive will flow into the adhesive groove.

[0014] Preferably, a sealing strip is provided between the body and the lid of the electrical box.

[0015] Preferably, the graphene thermally conductive sponge is arranged horizontally and vertically between the backlight panel and the bottom plate of the frame.

[0016] Preferably, the frame is an aluminum alloy frame.

[0017] The technical solution of this utility model has the following beneficial effects:

[0018] High-efficiency heat dissipation: By leaving a gap between the backlight panel and the bottom plate of the frame and setting graphene thermal conductive sponge, the heat generated by the backlight panel can be effectively conducted and dissipated to the bottom plate of the frame, thereby improving heat dissipation efficiency and ensuring stable operation of the display in high-temperature environments.

[0019] Heat insulation protection: The heat-insulating glass adopts a double-layer structure with heat insulation materials such as aerogel or polyurethane foam in the middle, which can effectively block external heat, reduce heat transfer to the inside of the display screen, protect the display screen from high temperature, and extend its service life.

[0020] Compact structure: The backlight panel and LCD display screen are arranged sequentially inside the frame. This layout makes the internal structure of the advertising machine compact, saves space, and facilitates installation and maintenance.

[0021] Easy installation and maintenance: The electrical box is located on the bottom plate of the frame. This design facilitates the installation, connection, and maintenance of electrical components, while reducing the space occupied by electrical components inside the display screen. The external electrical box also reduces interference from electrical components to the internal signals of the display screen, improving the stability of the display effect. Furthermore, the external electrical box better protects the electrical components from external environmental influences, enhancing the safety and reliability of the advertising machine.

[0022] Excellent thermal conductivity: The aluminum alloy frame also has good thermal conductivity, which can help dissipate heat. Working together with the graphene thermal conductive sponge, it can further improve the heat dissipation performance of the entire advertising machine.

[0023] Extended lifespan: Through efficient heat dissipation and insulation design, the operating temperature of the internal components of the display screen can be effectively reduced, reducing damage caused by high temperatures and thus extending the lifespan of the display screen. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0025] Figure 2 This is a structural diagram of the back of the present invention;

[0026] Figure 3 This is a schematic diagram of the installation of the graphene thermally conductive sponge of this utility model;

[0027] Figure 4 This is an exploded view of the heat-insulating glass, LCD display screen, and backlight panel of this utility model;

[0028] Figure 5 This is a schematic diagram of the steps and glue grooves arranged on the frame of this utility model. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Reference Figures 1 to 5 This utility model provides a high-efficiency heat-conducting LCD advertising machine, including: a frame 1, heat-insulating glass 2, LCD display screen 3, backlight panel 4, several graphene heat-conducting sponges 5, and an electrical box 6.

[0035] The backlight panel 4 and the LCD display screen 3 are arranged sequentially inside the frame 1; the heat insulation glass 2 is located at the opening of the frame 1 and directly above the LCD display screen 3; the heat insulation glass 2 located at the opening of the frame 1 can reduce the impact of external heat on the LCD display screen 3, protect the LCD display screen 3 from high temperature damage, and extend its service life.

[0036] A gap is reserved between the bottom plate of the frame 1 and the backlight plate 4. The heat-conducting sponge 5 is placed in the gap and is used to conduct the heat of the backlight plate 4 to the bottom plate of the frame 1. It can effectively conduct the heat generated by the backlight plate 4 and dissipate it to the bottom plate of the frame, thereby improving the heat dissipation efficiency and ensuring the stable operation of the LCD display screen 3 in a high-temperature environment.

[0037] The graphene thermally conductive sponge is arranged horizontally and vertically between the backlight panel and the bottom plate of the frame 1. The graphene thermally conductive sponge has excellent thermal conductivity and can quickly conduct the heat generated by the backlight panel and dissipate it to the bottom plate of the frame, thereby improving heat dissipation efficiency and ensuring the stable operation of the LCD display screen 3 in high-temperature environments. The frame 1 is made of aluminum alloy, which also has good thermal conductivity and can assist in heat dissipation. Working together with the graphene thermally conductive sponge, it further improves the heat dissipation performance of the entire advertising machine.

[0038] The electrical box 6 is externally mounted on the base plate of the frame 1. The external electrical box 6 facilitates installation and maintenance, and allows for easier connection and adjustment of the electrical components inside without disassembling the entire display screen. Heat dissipation performance: The external electrical box reduces the impact of heat generated by the electrical components on the internal components of the display screen, thus improving heat dissipation performance.

[0039] Furthermore, the heat-insulating glass 2 has a double-layer structure with a heat-insulating material filled in between, such as aerogel or polyurethane foam. This double-layer structure effectively blocks external heat, reduces heat transfer to the display screen, protects the screen from high temperatures, and extends its lifespan. The double-layer structure also enhances the overall structural stability and improves the impact resistance of the LCD display, making it more durable in complex outdoor environments.

[0040] Furthermore, a step 101 is provided inside the frame 1, and an adhesive groove 102 is provided on the step 101 near the inner wall of the frame 1. The heat-insulating glass 2 is disposed on the step 101, and when it is attached to the step 101, excess adhesive will flow into the adhesive groove 102. In this embodiment, the step 101 provided inside the frame 1 provides an accurate installation position for the heat-insulating glass 2, ensuring that the heat-insulating glass 2 can be installed flat and stably on the frame 1, thus improving the overall assembly accuracy. The adhesive groove 102 provided on the step 101 near the inner wall of the frame 1 allows excess adhesive to flow into the groove when the heat-insulating glass 2 is attached to the step. This effectively prevents adhesive overflow, ensuring the cleanliness of the inside of the LCD display screen, while also enhancing the sealing performance between the heat-insulating glass and the frame, preventing dust, moisture, etc., from entering the LCD display screen, and improving the reliability and stability of the LCD display screen.

[0041] Furthermore, a sealing strip is provided between the body and the lid of the electrical box 6, which improves the sealing performance of the electrical box 6.

[0042] The technical solution of this utility model has the following beneficial effects:

[0043] High-efficiency heat dissipation: By leaving a gap between the backlight panel and the bottom plate of the frame and setting graphene thermal conductive sponge, the heat generated by the backlight panel can be effectively conducted and dissipated to the bottom plate of the frame, thereby improving heat dissipation efficiency and ensuring stable operation of the display in high-temperature environments.

[0044] Heat insulation protection: The heat-insulating glass adopts a double-layer structure with heat insulation materials such as aerogel or polyurethane foam in the middle, which can effectively block external heat, reduce heat transfer to the inside of the display screen, protect the display screen from high temperature, and extend its service life.

[0045] Compact structure: The backlight panel and LCD display screen are arranged sequentially inside the frame. This layout makes the internal structure of the advertising machine compact, saves space, and facilitates installation and maintenance.

[0046] Easy installation and maintenance: The electrical box is located on the bottom plate of the frame. This design facilitates the installation, connection, and maintenance of electrical components, while reducing the space occupied by electrical components inside the display screen. The external electrical box also reduces interference from electrical components to the internal signals of the display screen, improving the stability of the display effect. Furthermore, the external electrical box better protects the electrical components from external environmental influences, enhancing the safety and reliability of the advertising machine.

[0047] Excellent thermal conductivity: The aluminum alloy frame also has good thermal conductivity, which can help dissipate heat. Working together with the graphene thermal conductive sponge, it can further improve the heat dissipation performance of the entire advertising machine.

[0048] Extended lifespan: Through efficient heat dissipation and insulation design, the operating temperature of the internal components of the display screen can be effectively reduced, reducing damage caused by high temperatures and thus extending the lifespan of the display screen.

[0049] 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 inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-efficiency heat-conducting LCD advertising machine, characterized in that, Include: Frame, heat insulation glass, LCD display screen, backlight plate, several graphene heat-conducting sponges, electrical appliance box; The backlight plate and the LCD display screen are sequentially arranged in the frame; the heat insulation glass is arranged at the opening of the frame and directly above the LCD display screen; A gap is reserved between the bottom plate of the frame and the backlight plate, the graphene heat-conducting sponge is arranged at the gap, and the graphene heat-conducting sponge is used for conducting heat of the backlight plate to the bottom plate of the frame, and the electrical appliance box is externally arranged on the bottom plate of the frame.

2. The high-efficient heat-conducting LCD advertising machine according to claim 1, characterized in that, The heat insulation glass is a double-layer structure, filled with a heat insulation material in the middle, and the heat insulation material is aerogel or polyurethane foam.

3. The high-efficient heat-conducting LCD advertising machine according to claim 2, characterized in that, A step position is formed in the frame, and a glue groove is formed on the step position and close to the inner wall of the frame.

4. The high-efficient heat-conducting LCD advertising machine according to claim 3, characterized in that, The heat insulation glass is arranged on the step position, and when the heat insulation glass is attached to the step position, the excess adhesive is flowed into the glue groove.

5. The high-efficient heat-conducting LCD advertising machine according to claim 1, characterized in that, A sealing rubber strip is arranged between the box body and the box cover of the electrical appliance box.

6. The high efficiency thermally conductive LCD sign of claim 1, wherein, The graphene heat-conducting sponge is arranged between the backlight plate and the bottom plate of the frame in a transverse and longitudinal manner.

7. The high-efficient heat-conducting LCD advertising machine according to claim 6, characterized in that, The frame is an aluminum alloy frame.