Multi-layer composite heat insulation type PC sunlight plate
By incorporating an anti-UV coating, aerogel insulation film, and honeycomb structure into PC sun panels, and combining these with the principle of natural convection, the problems of UV aging and insufficient heat insulation performance are solved, achieving a multi-layer composite heat insulation effect with high efficiency and long lifespan.
Patent Information
- Application Number
- CN202520314232.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing PC sun panels age under ultraviolet radiation, have limited heat insulation properties, are difficult to effectively suppress heat transfer, and have a short service life.
It adopts an anti-UV coating, aerogel insulation film and honeycomb panel structure, and combines the principle of natural convection to design through holes and heat exchange chambers to achieve multi-layer composite insulation. By utilizing the nanopores of aerogel and the heat exchange channels of honeycomb panels, the insulation effect is enhanced and the service life is extended.
It effectively blocks ultraviolet rays, improves heat insulation performance, reduces heat exchange, extends service life, enhances indoor environmental comfort, and reduces energy consumption.
Smart Images

Figure CN223893645U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PC sun sheet technology, specifically to a multi-layer composite heat-insulating PC sun sheet. Background Technology
[0002] Polycarbonate (PC) is a synthetic thermoplastic resin polymerized from bisphenol, phosgene and its derivatives. The common processing method is CNC machining. CNC machining of PC sheets usually refers to processes such as engraving, drilling and milling. Engraving of polycarbonate sheets can realize personalized design, marking, assembly and connection and functional enhancement, etc., to meet the diverse needs of different fields and applications.
[0003] A search revealed that patent application CN202421140092.9 discloses a multi-layer hollow high-strength polycarbonate sheet, comprising a substrate, a butt plate fixedly connected to the top of the substrate, support side frames fixedly connected to the four sides of the top of the butt plate, a top plate fixedly connected to the top of the support side frames, a support plate fixedly connected between the butt plate and the top plate, the support plate being disposed inside the support side frames, and uniformly distributed cavities I between the support plate and the top plate, and uniformly distributed cavities II between the support plate and the butt plate. The wavy shape of the support plate causes the multiple cavities I and II to be staggered, increasing the contact area between the two air layers and enhancing the heat insulation and sound insulation effects. While this device improves heat insulation and sound insulation performance to some extent through the special support plate and cavity structure, long-term ultraviolet radiation during use will cause the PC sheet material to age, reducing its strength and transparency, and shortening its service life. Furthermore, this patent relies solely on the air layers and the wavy shape of the support plate for heat insulation, resulting in a relatively simple insulation method that is difficult to effectively suppress various heat transfer mechanisms. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a multi-layer composite heat-insulating PC sun panel, which solves the problems mentioned in the background technology.
[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:
[0006] A multi-layer composite heat-insulating PC sun panel, including an outer shell;
[0007] The outer shell is surrounded by a surrounding panel, a support block is installed inside the outer shell, a support plate is installed on both sides of the support block, an aerogel heat insulation film is installed on both sides of the support plate, and a honeycomb panel is installed between the outer shell and the support block.
[0008] The support block is a pyramid, and a separation chamber is opened inside the support block. The support plate is located between the support block and the honeycomb panel.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, the honeycomb panel has a heat exchange cavity inside, and the support block, support plate and aerogel insulation film have through holes, and the separation chamber is connected to the heat exchange cavity through the through holes.
[0011] The beneficial effects of adopting the above-mentioned further solutions are:
[0012] By designing a structure that connects the heat exchange chamber to the through-holes, the cold and hot airflows from the support block can smoothly enter the heat exchange chamber of the honeycomb panel. This design creates a channel for heat exchange, utilizing the natural convection principle of hot air rising and cold air sinking to achieve heat exchange between indoor and outdoor hot and cold air within the honeycomb panel's heat exchange chamber. This helps regulate indoor temperature, assists the overall insulation system, reduces indoor temperature fluctuations, and improves indoor comfort. Simultaneously, it reduces energy consumption to some extent; for example, it can help lower indoor temperature in summer, reducing the cooling load on air conditioning.
[0013] Furthermore, the through hole is located at the tip of the support block, and the cold and hot airflows inside the support block are guided by the tip to enter the heat exchange chambers of the upper and lower honeycomb plates respectively.
[0014] The beneficial effects of adopting the above-mentioned further solutions are:
[0015] The special design of the support block's tip precisely guides the direction of hot and cold airflow. Due to the tip's directional nature, hot air rises more efficiently into the upper honeycomb panel heat exchange chamber, while cold air descends more smoothly into the lower honeycomb panel heat exchange chamber. This directional guidance significantly improves heat exchange efficiency. Compared to unguided airflow, it allows for greater heat exchange in a shorter time, further optimizing the indoor temperature environment, enhancing insulation, and ensuring relatively stable indoor temperature by rationally guiding airflow according to indoor and outdoor temperatures in different seasons.
[0016] Furthermore, the thickness of the aerogel insulation film is 0.5mm-2mm, and the surface of the aerogel insulation film is coated with a waterproof coating.
[0017] The beneficial effects of adopting the above-mentioned further solutions are:
[0018] Aerogel insulation films have a thickness ranging from 0.5mm to 2mm. Within this thickness range, aerogel materials can fully utilize their excellent thermal insulation performance. The numerous nanoscale pores within the aerogel effectively inhibit the three modes of heat transfer, achieving efficient thermal insulation, reducing indoor and outdoor heat exchange, and maintaining stable indoor temperatures. Simultaneously, the waterproof coating on the surface effectively prevents moisture from penetrating the aerogel insulation film. Once moisture enters, it damages the porous structure of the aerogel, reducing its thermal insulation performance. The waterproof coating prevents this from happening, extending the service life of the aerogel insulation film and ensuring its continuous and stable thermal insulation function even in humid environments.
[0019] Furthermore, the outer surface of the housing is provided with an anti-ultraviolet coating, the thickness of which is 0.1mm-0.3mm.
[0020] The beneficial effects of adopting the above-mentioned further solutions are:
[0021] The UV-resistant coating on the outer surface of the shell is between 0.1mm and 0.3mm thick. This coating effectively absorbs or reflects ultraviolet (UV) rays. Prolonged exposure to UV rays can cause PC sun panels to age, reducing their strength, transparency, and other properties, thus shortening their lifespan. The UV-resistant coating converts or reflects UV energy, protecting the internal structure of the sun panel and preventing aging, discoloration, and brittleness caused by UV corrosion. This extends the overall lifespan of the PC sun panel, reduces replacement costs, and maintains its good appearance and performance.
[0022] Furthermore, the thickness of the support plate is 2-5mm, and the support plate is bonded and fixed to the aerogel insulation film with adhesive.
[0023] The beneficial effects of adopting the above-mentioned further solutions are:
[0024] The support plate is 2-5mm thick. This thickness range ensures sufficient strength to provide stable support for the aerogel insulation film, preventing deformation or damage during use, while avoiding excessive weight due to excessive thickness. The support plate and aerogel insulation film are bonded together with adhesive, ensuring a tight bond and stable insulation performance during actual use. This prevents displacement from affecting the insulation effect and enhances the stability and reliability of the entire insulation structure.
[0025] This utility model provides a multi-layer composite heat-insulating PC sun panel. It has the following beneficial effects:
[0026] The outer surface of the shell is coated with an anti-ultraviolet coating with a thickness between 0.1mm and 0.3mm, which can effectively block ultraviolet rays, reduce the risk of aging and damage to the polycarbonate sheet due to ultraviolet radiation, and extend its service life.
[0027] The outer shell is surrounded by panels, and a support block is installed inside. Support plates are installed on both sides of the support block. This structural design enhances the overall strength and stability of the polycarbonate sheet, making it less prone to deformation during use.
[0028] Aerogel insulation film with a thickness between 0.5mm and 2mm is installed on both sides of the support plate. The aerogel insulation film has a good heat insulation effect, can effectively block heat transfer, and play a good role in heat insulation and heat preservation.
[0029] The aerogel insulation film is coated with a waterproof coating to prevent moisture penetration, thus avoiding the impact of moisture on the performance and lifespan of the polycarbonate sheet and ensuring its normal use in humid environments.
[0030] A honeycomb panel is installed between the outer shell and the support block. The honeycomb panel contains a heat exchange chamber. Through holes are drilled through the support block, support plate, and aerogel insulation film, and the separation chamber communicates with the heat exchange chamber through these through holes. The support block is a pyramid with a separation chamber inside. Cold and hot airflows are guided through the tip of the support block into the heat exchange chambers of the upper and lower honeycomb panels, respectively. This design facilitates efficient heat exchange and further enhances the insulation effect. Attached Figure Description
[0031] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0032] In the attached diagram:
[0033] Figure 1 This is a cross-sectional structural diagram of the present invention;
[0034] Figure 2 This is a cross-sectional view of the support block of this utility model;
[0035] Figure 3 For the present utility model Figure 2 Enlarged diagram of point A in the middle.
[0036] The attached diagram lists the components represented by each number as follows:
[0037] 1. Outer shell; 2. Enclosure panel; 3. Support block; 301. Through hole; 302. Separation chamber; 4. Support plate; 5. Aerogel insulation film; 6. Honeycomb panel. Detailed Implementation
[0038] 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.
[0039] Please see Figures 1 to 3 As shown, the embodiments provided by this utility model are as follows:
[0040] Example 1
[0041] A multi-layer composite heat-insulating PC sun panel includes an outer shell 1. The outer surface of the outer shell 1 is coated with an anti-ultraviolet (UV) coating with a thickness of 0.1mm-0.3mm. This coating can effectively absorb or reflect ultraviolet rays. Long-term exposure to ultraviolet rays will cause the PC sun panel material to age, reducing its strength, transparency, and other properties, and shortening its service life. The anti-UV coating converts or reflects UV energy, protecting the internal structure of the polycarbonate sheet and preventing it from aging, discoloring, and becoming brittle due to UV corrosion. This extends the overall lifespan of the PC polycarbonate sheet, reduces replacement costs, and maintains its good appearance and performance. The outer shell 1 is surrounded by a perimeter panel 2, and a support block 3 is installed inside the outer shell 1. Support plates 4 are installed on both sides of the support block 3. The thickness of the support plates 4 is 2-5mm, and they are bonded to the aerogel insulation film 5 with adhesive. The thickness of the support plates 4 is 2-5mm, which ensures sufficient strength to provide stable support for the aerogel insulation film 5, preventing deformation or damage during use, without adding excessive weight due to excessive thickness. The support plate 4 and the aerogel insulation film 5 are bonded and fixed together with adhesive, ensuring a tight bond and guaranteeing that the aerogel insulation film 5 can stably perform its insulation function in actual use, without being affected by displacement or other factors. This also enhances the stability and reliability of the entire insulation structure. Aerogel insulation films 5 are installed on both sides of the support plate 4. The thickness of the aerogel insulation film 5 is 0.5mm-2mm, and its surface is coated with a waterproof coating. Within this thickness range, the aerogel material can fully utilize its excellent insulation performance. The numerous nanoscale pores inside the aerogel effectively inhibit the three modes of heat transfer, achieving efficient insulation, reducing indoor and outdoor heat exchange, and maintaining a stable indoor temperature. Simultaneously, the waterproof coating effectively prevents moisture from penetrating the interior of the aerogel insulation film 5. Once moisture enters, it will damage the pore structure of the aerogel and reduce its heat insulation performance. The waterproof coating can prevent this from happening, extend the service life of the aerogel heat insulation film 5, and ensure that it can continue to play a stable heat insulation role in humid environments. A honeycomb panel 6 is installed between the outer shell 1 and the support block 3. The honeycomb panel 6 has a heat exchange chamber inside. Through holes 301 are opened through the support block 3, the support plate 4 and the aerogel heat insulation film 5. The separation chamber 302 is connected to the heat exchange chamber through the through holes 301. By setting the structure that connects the heat exchange chamber to the through holes 301, the cold and hot airflow in the separation chamber 302 of the support block 3 can smoothly enter the heat exchange chamber of the honeycomb panel 6.This design creates a channel for heat exchange, utilizing the natural convection principle of hot air rising and cold air falling to achieve heat exchange between indoor and outdoor hot and cold air in the heat exchange chamber of the honeycomb panel 6. This helps regulate indoor temperature, assists the overall insulation system, reduces indoor temperature fluctuations, improves indoor comfort, and at the same time reduces energy consumption to a certain extent. For example, in summer, it can help lower indoor temperature and reduce the cooling load of air conditioning.
[0042] Example 2
[0043] To facilitate the separation of cold and hot airflow within support block 3, for example, such as Figures 1 to 3 As shown, this utility model also includes: a support block 3 is a pyramid, and a separation chamber 302 is opened inside the support block 3; a support plate 4 is located between the support block 3 and the honeycomb panel 6; a through hole 301 is located at the tip of the support block 3; the cold and hot airflows inside the support block 3 are guided by the tip to enter the heat exchange chambers of the upper and lower honeycomb panels 6 respectively; the special design of the tip of the support block 3 can accurately guide the direction of the cold and hot airflows. Due to the directional nature of the tip, the hot airflow can rise more efficiently into the heat exchange chamber of the upper honeycomb panel 6, while the cold airflow descends more smoothly into the heat exchange chamber of the lower honeycomb panel 6. This directional guidance greatly improves the efficiency of heat exchange. Compared with the unguided airflow entry method, more heat exchange can be completed in a shorter time, further optimizing the indoor temperature environment, improving the heat insulation effect, and reasonably guiding the airflow according to the indoor and outdoor temperature conditions in different seasons to ensure the relative stability of the indoor temperature.
[0044] Working principle:
[0045] When sunlight shines on a PC sun sheet, the UV-resistant coating on the outer surface of the outer shell 1 comes into play first. Its thickness is between 0.1mm and 0.3mm. The principle is that the coating material can absorb or reflect ultraviolet rays, converting the energy of ultraviolet rays into other forms of energy or reflecting them away, thereby preventing ultraviolet rays from penetrating into the interior of the sun sheet, protecting the internal structure from UV corrosion, and extending the lifespan of the sun sheet.
[0046] The surrounding panels 2 of the outer shell 1 provide initial frame support, maintaining the overall shape of the polycarbonate sheet. Next, the internal support blocks 3 play a crucial supporting role. These support blocks 3 have a pyramidal structure, a design that provides stronger support with the same amount of material compared to ordinary shapes. Together with the outer shell 1, the support blocks 3 bear the external pressure and other forces, ensuring that the polycarbonate sheet will not easily deform under stress during use, thus guaranteeing the stability of the entire structure.
[0047] The support plates 4, with a thickness of 2-5mm, are installed on both sides of the support block 3. Their main function is to connect and provide auxiliary support for the aerogel insulation film 5. The aerogel insulation film 5 has a thickness between 0.5mm and 2mm, and its working principle is based on the extremely low thermal conductivity of the aerogel material. The aerogel contains numerous nanoscale pores, within which the movement of gas molecules is greatly hindered. All three modes of heat transfer (conduction, convection, and radiation) are effectively suppressed in the aerogel. When heat is transferred from one side, the aerogel insulation film 5 can block the heat from passing through to a great extent, thereby achieving efficient heat insulation, maintaining a relatively stable indoor temperature, and reducing energy consumption caused by heat exchange between indoors and outdoors.
[0048] The waterproof coating on the surface of the aerogel insulation film 5 comes into play at this point. The principle behind the waterproof coating is its tightly packed molecular structure, making it difficult for water molecules to penetrate and contact the aerogel insulation film 5. When external moisture comes into contact with the polycarbonate sheet, the waterproof coating can block the moisture, preventing it from invading and causing the aerogel insulation film 5 to become damp and reduce its insulation performance. It also prevents moisture from corroding other structural components, thus protecting the overall performance and lifespan of the polycarbonate sheet.
[0049] The honeycomb panel 6 installed between the outer shell 1 and the support block 3 begins operation. The honeycomb panel 6 has a heat exchange chamber inside. Through holes 301 are formed in the support block 3, support plate 4, and aerogel insulation film 5. The separation chamber 302 inside the support block 3 communicates with the heat exchange chamber through the through holes 301. Cold and hot airflows inside the support block 3 are guided by its tip into the heat exchange chambers of the upper and lower honeycomb panels 6, respectively. The principle utilizes the natural convection principle of hot air rising and cold air falling, as well as the heat conduction characteristics between gases of different temperatures. When there is a temperature difference between indoors and outdoors, hot air enters the heat exchange chamber of the upper honeycomb panel 6 during its ascent, and cold air enters the heat exchange chamber of the lower honeycomb panel 6 during its descent. Within the heat exchange chambers of the honeycomb panels 6, partial heat exchange occurs between the indoor and outdoor hot and cold air through heat conduction and convection, thereby optimizing the indoor temperature environment, further assisting in heat insulation, and reducing indoor temperature fluctuations.
[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A multi-layer composite heat-insulating PC sun panel, comprising an outer shell (1), characterized in that: The outer shell (1) is surrounded by a surrounding panel (2), a support block (3) is installed inside the outer shell (1), a support plate (4) is installed on both sides of the support block (3), an aerogel heat insulation film (5) is installed on both sides of the support plate (4), and a honeycomb panel (6) is installed between the outer shell (1) and the support block (3). The support block (3) is a pyramid, and a separation chamber (302) is provided inside the support block (3). The support plate (4) is located between the support block (3) and the honeycomb plate (6).
2. The multi-layer composite heat-insulating PC sun panel according to claim 1, characterized in that: The honeycomb panel (6) has a heat exchange cavity inside. The support block (3), support plate (4) and aerogel insulation film (5) have through holes (301). The separation chamber (302) is connected to the heat exchange cavity through the through holes (301).
3. The multi-layer composite heat-insulating PC sun panel according to claim 2, characterized in that: The through hole (301) is located at the tip of the support block (3), and the cold and hot airflows in the support block (3) are guided by the tip to enter the heat exchange chambers of the upper and lower honeycomb plates (6) respectively.
4. The multi-layer composite heat-insulating PC sun panel according to claim 1, characterized in that: The thickness of the aerogel heat insulation film (5) is 0.5mm-2mm, and the surface of the aerogel heat insulation film (5) is coated with a waterproof coating.
5. The multi-layer composite heat-insulating PC sun panel according to claim 1, characterized in that: The outer surface of the outer shell (1) is provided with an anti-ultraviolet coating, the thickness of which is 0.1mm-0.3mm.
6. The multi-layer composite heat-insulating PC sun panel according to claim 1, characterized in that: The thickness of the support plate (4) is 2-5mm, and the support plate (4) and the aerogel heat insulation film (5) are bonded and fixed together by adhesive.
Citation Information
Patent Citations
Multi-layer hollow high-strength sunlight plate
CN222314405U