Anti-ultraviolet laminated composite signboard
Through a three-layer laminated structure and intelligent design, the problems of weather resistance, mechanical strength, temperature adaptability and intelligent monitoring of traditional signs have been solved, achieving efficient protection and real-time monitoring, extending service life and improving the overall performance of signs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional signage suffers from several drawbacks when used outdoors, including insufficient weather resistance and UV protection, limited mechanical strength and impact resistance, poor temperature adaptability, lack of intelligent monitoring capabilities, and inadequate protective structure.
It adopts a three-layer laminated structure, including a stainless steel substrate, an Andy board intermediate layer, and a reflective film surface layer. It is embedded with a hexagonal honeycomb aluminum core and paraffin-based phase change material, combined with micro solar cell power supply and flexible pressure sensor. It is equipped with a detachable protective cover and buffer structure to achieve multiple protections and intelligent monitoring.
It improves the impact resistance and weather resistance of the signage, reduces internal temperature rise, achieves self-powered operation and real-time monitoring, enhances protection, and simplifies maintenance.
Smart Images
Figure CN224096354U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical engineering technology, and more specifically, it relates to an ultraviolet-resistant laminated composite sign. Background Technology
[0002] With the acceleration of urbanization and the widespread deployment of electrical engineering facilities, outdoor signs, as an important carrier of information transmission and safety warnings, need to operate under complex environmental conditions for extended periods. Traditional signs are mostly made of a single metal substrate or plastic composite material, which has the following technical drawbacks in practical applications:
[0003] I. Insufficient Weather Resistance and UV Resistance: Conventional signage surfaces are susceptible to long-term UV radiation, leading to coating chalking and fading. This is especially true in high UV radiation areas, where the reflective film material ages rapidly, severely impacting the visibility and lifespan of the signage. While existing technologies can partially alleviate the problem by adding UV absorbers or thickening the protective layer, these methods often result in decreased light transmittance or increased material brittleness, making it difficult to balance optical performance and weather resistance.
[0004] II. Limited Mechanical Strength and Impact Resistance: Traditional laminated signage often uses a single adhesive layer or simple edge design, making it prone to problems such as interlayer peeling and edge cracking under extreme weather conditions or external impacts, such as strong winds or hail. Especially for smart signage with embedded electronic components, structural deformation can easily lead to the failure of internal sensors and power supply systems, lacking reliable buffering and energy absorption mechanisms.
[0005] 3. Poor Temperature Adaptability: Drastic temperature fluctuations in outdoor environments can easily cause a mismatch in the thermal expansion coefficients of signage materials, leading to stress concentration between layers. In high-temperature environments, internal electronic components of the signage (such as sensors and display modules) are prone to performance degradation or even damage due to overheating. Existing temperature control methods mostly rely on passive heat dissipation designs and cannot actively regulate the heat load, resulting in limited effectiveness in enclosed spaces or high-heat radiation scenarios.
[0006] IV. Lack of Intelligent Monitoring Capabilities: Most existing signs are static structures, unable to detect external collisions, touches, or other interactive behaviors in real time, and also lack monitoring of their own structural health status. Although some solutions attempt to integrate pressure sensors, they are limited by single power supply methods (such as battery power) and data transmission delays, making it difficult to achieve long-term stable self-powering and real-time early warning.
[0007] V. Insufficient Practicality of Protective Structures: Some outdoor signs use fixed protective covers, which can block ultraviolet rays and physical impacts, but are difficult to disassemble and maintain, and the way they are connected to the sign body (such as bolt fixing) can easily damage the substrate. In addition, the rigid contact between the protective cover and the sign can easily transmit vibration energy during impact, increasing the risk of damage to the internal structure.
[0008] Therefore, this utility model provides an anti-ultraviolet laminated composite sign. Utility Model Content
[0009] In view of the above-mentioned problems of existing technology, the purpose of this utility model is to provide an anti-ultraviolet laminated composite sign, which achieves efficient protection and intelligent monitoring through a three-layer laminated structure for impact and ultraviolet resistance, honeycomb aluminum core phase change material for temperature control, solar power supply and Bluetooth monitoring, and magnetic protective cover and buffer structure for energy absorption.
[0010] The objective of this utility model can be achieved through the following technical solutions:
[0011] A UV-resistant laminated composite signboard includes a stainless steel substrate, an Andy board intermediate layer, and a reflective film surface layer laminated sequentially from the outside to the inside.
[0012] The stainless steel substrate has a bent edge structure at its edge that extends toward the surface of the reflective film, and a sealed cavity is formed between the bent edge structure and the surface of the reflective film.
[0013] The Andy board has a hexagonal honeycomb aluminum core embedded in its middle layer, and the core holes of the hexagonal honeycomb aluminum core are filled with paraffin-based phase change energy storage material.
[0014] The inner surface of the bent edge structure is provided with a plurality of flexible pressure sensors arranged in an equally spaced array. The plurality of flexible pressure sensors are electrically connected to the Bluetooth transmission module through the sealed cavity. The Bluetooth transmission module is located at the bottom of the sealed cavity.
[0015] The reflective film surface is composed of a transparent conductive mesh layer, an electronic ink display layer, and a nano titanium dioxide coating. The transparent conductive mesh layer is electrically connected to a micro solar cell, which is located at the top of the sealed cavity.
[0016] As a further preferred technical solution of this utility model, the thickness of the stainless steel substrate is 0.5±0.05mm, the thickness of the Andy board intermediate layer is 1.2±0.1mm, and the thickness of the reflective film surface layer is 0.3±0.02mm.
[0017] The width of the sealed cavity formed between the bent edge structure and the reflective film surface is 1.2 ± 0.1 mm;
[0018] The spacing between several of the flexible pressure sensors is 5 ± 0.2 mm.
[0019] As a further preferred technical solution of this utility model, the wall thickness of the hexagonal honeycomb aluminum core in the middle layer of the Andy board is 0.1±0.02mm, the honeycomb pore diameter is 3±0.5mm, and the phase change temperature of the paraffin-based phase change energy storage material filled in the core pores of the hexagonal honeycomb aluminum core in the middle layer of the Andy board is 45±2℃.
[0020] As a further preferred technical solution of this utility model, the thickness of the nano-titanium dioxide coating on the surface of the reflective film is 0.08±0.02μm, the surface roughness Ra≤0.1μm, and the ultraviolet reflectivity≥70%.
[0021] As a further preferred technical solution of this utility model, the micro solar cell is also electrically connected to a solar photovoltaic panel, the solar photovoltaic panel supplies power to the micro solar cell through a conversion plate, the solar photovoltaic panel is disposed at the top of the outside of the sealed cavity, and the electronic ink display layer is powered by the micro solar cell through the transparent conductive mesh layer.
[0022] The solar photovoltaic panel has a conversion efficiency of ≥23%, and the micro solar cell has an output power density of ≥2W / m². 2 .
[0023] As a further preferred technical solution of this utility model, it also includes a detachable UV-protective cover, which is composed of a magnetic frame and UV-protective high-transmittance glass. The magnetic force of the magnetic frame of the detachable UV-protective cover is 12±1N. The detachable UV-protective cover is attracted to the stainless steel substrate through the magnetic frame. The UV-protective high-transmittance glass has a UV blocking rate of ≥80%.
[0024] The stainless steel substrate is made of martensitic stainless steel.
[0025] As a further preferred technical solution of this utility model, the back of the stainless steel substrate is provided with cross-shaped elastic rubber ribs, the height of which is 1.2±0.1mm and the spacing between adjacent ribs is 15±1mm, forming a buffer contact surface structure.
[0026] As a further preferred technical solution of this utility model, the outer side of the bending and edge-wrapping structure is coated with a hydrophobic wear-resistant coating with a coating thickness of 50±5μm and a pencil hardness of ≥3H.
[0027] As a further preferred technical solution of this utility model, a microencapsulated polyurethane adhesive layer is provided between the middle of the Andy board and the stainless steel substrate, and the microcapsule particle size is 50-80μm.
[0028] As described above, the UV-resistant laminated composite signage provided by this utility model has the following characteristics:
[0029] Beneficial effects:
[0030] 1. This utility model utilizes the above-mentioned UV-resistant laminated composite sign. Compared with the prior art, this application adopts a three-layer laminated structure to achieve multiple protections: the stainless steel substrate provides high strength support and corrosion resistance, the Andy board middle layer has a built-in honeycomb aluminum core to form structural reinforcement, and the reflective film surface layer achieves ≥70% UV reflectivity through a nano titanium dioxide coating. The synergistic effect of the three layers gives the sign excellent impact resistance, weather resistance and UV resistance.
[0031] 2. This utility model utilizes the above-mentioned UV-resistant laminated composite sign. Compared with the prior art, it adopts the following structure: the honeycomb aluminum core is filled with paraffin-based phase change material (phase change temperature 45°C). When the ambient temperature exceeds the critical value, it actively absorbs heat and undergoes phase change to form a heat buffer layer, which effectively reduces the impact of high temperature environment on electronic components and can reduce internal temperature rise.
[0032] 3. This utility model utilizes the above-mentioned UV-resistant laminated composite sign. Compared with the prior art, it adopts the following structure: a self-circulating power supply system is constructed through micro solar cells and a transparent conductive mesh layer to meet the continuous power supply requirements of the electronic ink display layer and the flexible pressure sensor array; and, combined with a Bluetooth transmission module, wireless monitoring of pressure data is realized, which can sense the external force such as collision and touch in real time.
[0033] 4. This utility model utilizes the above-mentioned UV-resistant laminated composite sign. Compared with the prior art, it adopts the following structure: the UV-resistant high-transmittance glass of the detachable UV-resistant protective cover is combined with a nano-titanium dioxide coating to achieve dual protection against UV rays, and the magnetic frame of the detachable UV-resistant protective cover can be quickly installed and removed; in addition, the buffer contact surface structure formed by the cross-shaped distribution of elastic rubber strips can absorb the impact energy when the sign is impacted.
[0034] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0035] 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 these drawings without creative effort.
[0036] Figure 1 This is one of the structural schematic diagrams of an anti-ultraviolet laminated composite signage for this utility model application;
[0037] Figure 2 This is a top view of an anti-ultraviolet laminated composite signboard according to this utility model application;
[0038] Figure 3 for Figure 2 A cross-sectional view along the AA direction;
[0039] Figure 4 for Figure 2 Cross-sectional view along the BB direction;
[0040] Figure 5 This is the second structural schematic diagram of an anti-ultraviolet laminated composite sign applied for in this utility model application;
[0041] Figure 6 This is a structural schematic diagram of a detachable UV-protective cover for a UV-resistant laminated composite sign, which is the subject of this utility model application.
[0042] Summary of figure labels and their descriptions:
[0043] 100. Stainless steel substrate; 110. Bending and edge-sealing structure; 200. Andy board middle layer; 210. Hexagonal honeycomb aluminum core; 300. Reflective film surface layer; 310. Transparent conductive mesh layer; 320. Electronic ink display layer; 330. Nano titanium dioxide coating; 400. Sealed cavity; 500. Flexible pressure sensor; 600. Bluetooth transmission module; 700. Miniature solar cell; 710. Solar photovoltaic panel; 800. Removable UV-protective cover; 810. Magnetic frame; 820. UV-protective high-transmittance glass; 900. Elastic rubber ribs. Detailed Implementation
[0044] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0045] It should be noted that the structures, proportions, and sizes depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention. Specific structures can be described with reference to the accompanying drawings of the patent application.
[0046] This utility model provides a UV-resistant laminated composite sign. Please refer to [link / reference]. Figures 1 to 6 As shown, the sign includes a stainless steel substrate 100, an Andy board intermediate layer 200, and a reflective film surface layer 300, which are laminated from the outside to the inside. Through the design of the triple composite structure, the overall wind resistance of the sign is improved and the service life of the sign is extended.
[0047] The stainless steel substrate 100 is provided with a bent edge structure 110 on the side of the reflective film surface layer 300, and a sealed cavity 400 is formed between the bent edge structure 110 and the reflective film surface layer 300.
[0048] The Andy board's intermediate layer 200 is embedded with a hexagonal honeycomb aluminum core 210. The core holes of the hexagonal honeycomb aluminum core 210 are filled with paraffin-based phase change energy storage material, which absorbs ambient heat at 45°C and forms an air insulation layer, reducing the temperature fluctuation range inside the sign and reducing the occurrence of thermal failure of electronic components.
[0049] The inner surface of the bent edge structure 110 is equally spaced arrayed with a plurality of flexible pressure sensors 500. These flexible pressure sensors 500 are electrically connected to a Bluetooth transmission module 600 via a sealed cavity 400. The Bluetooth transmission module 600 is located at the bottom of the sealed cavity 400. The flexible pressure sensors 500 transmit collision data in real time (sampling rate 100Hz) via the Bluetooth transmission module 600, enabling positioning up to 0.5cm. 2 Active safety warning is achieved when the contact pressure is ≥0.1N within the area;
[0050] The reflective film surface layer 300 is composed of a transparent conductive mesh layer 310, an electronic ink display layer 320, and a nano titanium dioxide coating 330. The transparent conductive mesh layer 310 is electrically connected to the micro solar cell 700, which is disposed at the top of the sealed cavity 400.
[0051] The thickness of the stainless steel substrate 100 is 0.5±0.05mm, the thickness of the Andy board intermediate layer 200 is 1.2±0.1mm, and the thickness of the reflective film surface layer 300 is 0.3±0.02mm. By controlling the thickness tolerance of the stainless steel substrate 100 and the Andy board intermediate layer 200, the interlayer stress distribution is made uniform, and the interfacial peel strength is enhanced.
[0052] The width of the sealed cavity 400 formed between the bent edge structure 110 and the reflective film surface layer 300 is 1.2 ± 0.1 mm;
[0053] The spacing between several of the flexible pressure sensors 500 is 5±0.2mm, and the sensor spacing design reduces the detection blind zone.
[0054] The wall thickness of the hexagonal honeycomb aluminum core 210 of the Andy board intermediate layer 200 is 0.1±0.02mm, the honeycomb pore size is 3±0.5mm, and the phase change temperature of the paraffin-based phase change energy storage material filled in the core pores of the hexagonal honeycomb aluminum core 210 of the Andy board intermediate layer 200 is 45±2℃.
[0055] The nano-titanium dioxide coating 330 of the reflective film surface layer 300 has a thickness of 0.08±0.02μm, a surface roughness Ra≤0.1μm, and an ultraviolet reflectivity ≥70%. The nano-titanium dioxide coating 330, through surface texturing treatment, not only has strong ultraviolet reflectivity, but also achieves super-hydrophilic self-cleaning and can maintain high light transmittance even under rain washing.
[0056] The micro solar cell 700 is also electrically connected to the solar photovoltaic panel 710. The solar photovoltaic panel 710 supplies power to the micro solar cell 700 through a conversion plate. The solar photovoltaic panel 710 is located at the top of the outer side of the sealed cavity 400. The electronic ink display layer 320 is powered by the micro solar cell 700 through the transparent conductive mesh layer 310.
[0057] The solar photovoltaic panel 710 has a conversion efficiency of ≥23%, and the micro solar cell 700 has an output power density of ≥2W / m². 2 .
[0058] Combination Figure 6As shown, this application also includes a detachable UV-protective cover 800, which is composed of a magnetic frame 810 and a UV-protective high-transmittance glass 820. The magnetic force of the magnetic frame 810 of the detachable UV-protective cover 800 is 12±1N. The detachable UV-protective cover 800 is attracted to the stainless steel substrate 100 through the magnetic frame 810. The UV blocking rate of the UV-protective high-transmittance glass 820 is ≥80%.
[0059] The stainless steel substrate 100 is made of martensitic stainless steel.
[0060] Combination Figure 5 As shown, the stainless steel substrate 100 has cross-shaped elastic rubber ribs 900 on its back side, with a rib height of 1.2±0.1mm and a spacing of 15±1mm between adjacent ribs, forming a buffer contact surface structure.
[0061] The outer side of the bending and edge-wrapping structure 110 is coated with a hydrophobic wear-resistant coating with a thickness of 50±5μm and a pencil hardness ≥3H.
[0062] A microencapsulated polyurethane adhesive layer is provided between the middle of the Andy board and the stainless steel substrate 100. The microcapsule particle size is 50-80μm. The adhesive strength recovers within 24 hours after the capsule ruptures and forms a microporous structure after curing, which improves the interlayer bonding strength and gives the sign of this application better anti-aging performance.
[0063] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A UV-resistant laminated composite sign, characterized in that, It includes a stainless steel substrate, an Andy board intermediate layer, and a reflective film surface layer, which are laminated and composited sequentially from the outside to the inside. The stainless steel substrate has a bent edge structure at its edge that extends toward the surface of the reflective film, and a sealed cavity is formed between the bent edge structure and the surface of the reflective film. The Andy board has a hexagonal honeycomb aluminum core embedded in its middle layer, and the core holes of the hexagonal honeycomb aluminum core are filled with paraffin-based phase change energy storage material. The inner surface of the bent edge structure is provided with a plurality of flexible pressure sensors arranged in an equally spaced array. The plurality of flexible pressure sensors are electrically connected to the Bluetooth transmission module through the sealed cavity. The Bluetooth transmission module is located at the bottom of the sealed cavity. The reflective film surface is composed of a transparent conductive mesh layer, an electronic ink display layer, and a nano titanium dioxide coating. The transparent conductive mesh layer is electrically connected to a micro solar cell, which is located at the top of the sealed cavity.
2. The UV-resistant laminated composite signboard according to claim 1, characterized in that, The thickness of the stainless steel substrate is 0.5±0.05mm, the thickness of the Andy board intermediate layer is 1.2±0.1mm, and the thickness of the reflective film surface layer is 0.3±0.02mm. The width of the sealed cavity formed between the bent edge structure and the reflective film surface is 1.2 ± 0.1 mm; The spacing between several of the flexible pressure sensors is 5 ± 0.2 mm.
3. The UV-resistant laminated composite signboard according to claim 1, characterized in that, The wall thickness of the hexagonal honeycomb aluminum core in the middle layer of the Andy board is 0.1±0.02mm, the honeycomb pore size is 3±0.5mm, and the phase change temperature of the paraffin-based phase change energy storage material filled in the core pores of the hexagonal honeycomb aluminum core in the middle layer of the Andy board is 45±2℃.
4. The UV-resistant laminated composite signboard according to claim 1, characterized in that, The nano-titanium dioxide coating on the surface of the reflective film has a thickness of 0.08±0.02μm, a surface roughness Ra≤0.1μm, and an ultraviolet reflectivity≥70%.
5. The UV-resistant laminated composite signboard according to claim 1, characterized in that, The micro solar cell is also electrically connected to a solar photovoltaic panel, which supplies power to the micro solar cell through a conversion plate. The solar photovoltaic panel is located at the top of the outside of the sealed cavity, and the electronic ink display layer is powered by the micro solar cell through the transparent conductive mesh layer. The solar photovoltaic panel has a conversion efficiency of ≥23%, and the micro solar cell has an output power density of ≥2W / m². 2 .
6. The UV-resistant laminated composite signboard according to claim 1, characterized in that, It also includes a detachable UV-protective cover, which is composed of a magnetic frame and UV-protective high-transmittance glass. The magnetic force of the magnetic frame of the detachable UV-protective cover is 12±1N. The detachable UV-protective cover is attracted to the stainless steel substrate through the magnetic frame. The UV-protective high-transmittance glass has a UV blocking rate of ≥80%. The stainless steel substrate is made of martensitic stainless steel.
7. The UV-resistant laminated composite signboard according to claim 1, characterized in that, The stainless steel substrate has cross-shaped elastic rubber ribs on its back side. The height of the ribs is 1.2±0.1mm and the spacing between adjacent ribs is 15±1mm, forming a buffer contact surface structure.
8. The UV-resistant laminated composite signboard according to claim 1, characterized in that, The outer side of the bending and edge-wrapping structure is coated with a hydrophobic wear-resistant coating with a thickness of 50±5μm and a pencil hardness of ≥3H.
9. The UV-resistant laminated composite signboard according to claim 1, characterized in that, The Andy board has a microencapsulated polyurethane adhesive layer between its middle section and the stainless steel substrate, and the microcapsule particle size is 50-80μm.