Photovoltaic thermal insulation integrated board

Abstract

The utility model provides a photovoltaic thermal insulation integrated board, which belongs to the technical field of photovoltaic thermal insulation integrated boards and comprises power generation photovoltaic glass, a thermal insulation board, a junction box and a heat dissipation channel structure. The power generation photovoltaic glass is located on the outer layer of the integrated plate, the heat preservation plate is located on the inner layer of the integrated plate, and the heat dissipation channel structure is arranged between the power generation photovoltaic glass and the heat preservation plate. The junction box is installed on the side, close to the heat preservation plate, of the power generation photovoltaic glass, part of the junction box is located in the heat dissipation channel structure, the heat dissipation channel structure is composed of a plurality of trapezoidal rib plates arranged at intervals, and a trapezoidal heat dissipation channel space is formed between every two adjacent trapezoidal rib plates; the short edge of the trapezoid rib plate is connected with the power generation photovoltaic glass, the long edge of the trapezoid rib plate is connected with the heat preservation plate, the trapezoid rib plate is fixedly connected with the power generation photovoltaic glass and the heat preservation plate, and the heat dissipation problem of the power generation photovoltaic glass and the junction box is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of photovoltaic integrated insulation panels, specifically, it relates to a photovoltaic integrated insulation panel. Background Technology

[0002] Photovoltaic integrated insulation panels, a new type of building material that combines photovoltaic power generation and building insulation functions, have been widely used in modern construction. Their heat dissipation channels are a key component in ensuring stable equipment operation and improving overall performance. These channels are typically specific spatial structures built between the photovoltaic glass and the insulation panel. Through airflow or other heat dissipation media circulation, they remove the heat generated by the photovoltaic glass and junction box during operation, maintaining the normal operating temperature of the equipment and ensuring power generation efficiency and safety.

[0003] However, traditional integrated photovoltaic (PV) insulation panels have several drawbacks in their heat dissipation channels. From a structural design perspective, traditional heat dissipation channels are often quite simple, typically just a narrow gap between the photovoltaic glass and the insulation board, without proper guidance or planning for airflow. This design leads to poor air circulation and low heat dissipation efficiency. For example, in high-temperature summer environments, the large amount of heat generated by the photovoltaic glass cannot be dissipated in time, causing the glass temperature to rise continuously, thus affecting its photoelectric conversion efficiency and reducing power generation capacity. In terms of material selection, traditional heat dissipation channels lack highly efficient thermal conductive and insulating materials. On the one hand, the heat transfer efficiency between the photovoltaic glass and the heat dissipation channel is low, and heat cannot be quickly conducted into the channel. On the other hand, there are no effective insulation measures between the heat dissipation channel and the insulation board, causing heat from the channel to easily enter the insulation board. This not only reduces the insulation effect but may also accelerate the aging of the insulation material due to prolonged exposure to heat, shortening the lifespan of the integrated panel. Utility Model Content

[0004] In view of this, the photovoltaic integrated insulation panel provided by this utility model solves the design defects of the heat dissipation channel of the traditional photovoltaic integrated insulation panel, namely the heat dissipation problem of the photovoltaic glass and junction box, and improves the overall heat dissipation, heat preservation and safety performance of the integrated panel.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a photovoltaic insulation integrated panel, which includes photovoltaic glass, insulation board, junction box and heat dissipation channel structure; the photovoltaic glass is located on the outer layer of the integrated panel, the insulation board is located on the inner layer of the integrated panel, and the heat dissipation channel structure is provided between the photovoltaic glass and the insulation board; the junction box is installed on the side of the photovoltaic glass close to the insulation board, and the junction box part is located within the heat dissipation channel structure.

[0007] The technical effects of this utility model's integrated photovoltaic insulation panel are as follows: It clarifies the basic composition and key component relationships of the integrated photovoltaic insulation panel. The photovoltaic glass generates electricity, the insulation panel provides insulation, the junction box transmits power, and the heat dissipation channel structure solves the heat dissipation problem. All components work together to meet the building's energy supply and insulation needs while reducing fire risk and improving overall safety and functionality.

[0008] Based on the above technical solution, the photovoltaic integrated insulation panel of this utility model can be further improved as follows:

[0009] The heat dissipation channel structure is composed of multiple spaced trapezoidal ribs, with adjacent trapezoidal ribs forming a trapezoidal heat dissipation channel space. The short side of the trapezoidal rib is connected to the photovoltaic glass, and the long side is connected to the insulation board. The trapezoidal rib is fixedly connected to both the photovoltaic glass and the insulation board.

[0010] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the heat dissipation channel structure composed of trapezoidal ribs, with its special trapezoidal shape, increases the spatial volume of the heat dissipation channel, which is conducive to air circulation and improves heat dissipation efficiency. The interval setting ensures the uniformity of heat dissipation, and the connection method with the photovoltaic glass and insulation board is stable, ensuring structural stability and guaranteeing the continuous and stable operation of the heat dissipation function.

[0011] Furthermore, the trapezoidal rib is connected to the photovoltaic glass and the insulation board by structural adhesive or thermally conductive structural adhesive. The thermally conductive structural adhesive is filled on the contact surface between the trapezoidal rib and the photovoltaic glass and the insulation board to enhance heat conduction and ensure a firm connection.

[0012] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the structural adhesive or thermally conductive structural adhesive connection not only enhances the connection strength between the trapezoidal ribs and the photovoltaic glass and insulation board, making the heat dissipation channel structure more stable, but also improves the heat conduction efficiency. This ensures that the heat generated by the photovoltaic glass can be quickly transferred to the heat dissipation channel, accelerating the heat dissipation process, ensuring that the photovoltaic glass operates at a suitable temperature, and improving power generation efficiency.

[0013] Furthermore, the integrated panel also includes a frame that surrounds the edges of the photovoltaic glass, the insulation board, and the junction box; the frame is provided with an air inlet and an air outlet, the air inlet being connected to one end of the heat dissipation channel structure, and the air outlet being connected to the other end of the heat dissipation channel structure.

[0014] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the air inlets and outlets on the frame provide an airflow path for the heat dissipation channel structure, allowing air to circulate naturally. The air inlets introduce cool air, which carries away heat and is then discharged from the outlets, effectively reducing the temperature of the photovoltaic glass and junction box, further improving the heat dissipation effect. At the same time, the frame also plays a role in protecting internal components and enhancing the overall structural strength of the integrated panel.

[0015] Furthermore, the surface of the photovoltaic glass near the insulation board is coated with a thermally conductive coating, which covers the area where the photovoltaic glass contacts the heat dissipation channel structure, thereby improving the heat transfer efficiency from the photovoltaic glass to the heat dissipation channel structure.

[0016] The thermally conductive coating is made of one or more of the following materials: nano-carbon materials, silver nanowires, or thermally conductive silicone.

[0017] Furthermore, a heat insulation layer is provided on the side of the insulation board near the photovoltaic glass. The heat insulation layer is located between the heat dissipation channel structure and the main body of the insulation board. The edge of the heat insulation layer is sealed to the edge of the heat dissipation channel structure to prevent heat from the heat dissipation channel structure from entering the main body of the insulation board.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the insulation layer can effectively prevent heat from the heat dissipation channel structure from entering the insulation board body, maintaining the stable thermal insulation performance of the insulation board. It avoids the heat from the heat dissipation channel affecting the insulation effect, ensuring that the building's thermal insulation and energy-saving effect is not affected, while also extending the service life of the insulation board.

[0019] Furthermore, the insulation layer is made of aerogel felt or ceramic fiber felt, and the insulation layer is installed on the insulation board by adhesive or mechanical fixation.

[0020] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the insulation layer made of aerogel felt or ceramic fiber felt has good thermal insulation performance, high temperature resistance and chemical stability. The low thermal conductivity of aerogel felt can effectively block heat transfer, while ceramic fiber felt is resistant to high temperature and not easy to age, ensuring the long-term stable operation of the insulation layer and providing reliable thermal insulation protection for the insulation board.

[0021] Furthermore, the integrated panel has a splicing structure in the length or width direction. The splicing structure includes protrusions and grooves on the edge of the integrated panel. Adjacent integrated panels are spliced ​​together by the cooperation of the protrusions and grooves, and the heat dissipation channel structure at the splicing point is interconnected.

[0022] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the splicing structure facilitates the splicing and installation of integrated panels on the construction site, improving construction efficiency. The heat dissipation channels at the splicing points are interconnected, ensuring the continuity and uniformity of heat dissipation throughout the installation area, enabling effective heat dissipation even after multiple integrated panels are combined, and expanding the application range of integrated panels.

[0023] Furthermore, a sealing strip is provided at the joint, which is located on the contact surface between the protrusion and the groove to prevent air leakage.

[0024] The beneficial effects of adopting the above-mentioned improvement scheme are: the sealing strip prevents air leakage at the splicing point, ensures the airtightness of the heat dissipation channel, maintains the normal flow of air in the heat dissipation channel, improves heat dissipation efficiency, and ensures that the overall heat dissipation performance of the integrated panel after splicing is not affected.

[0025] Furthermore, a guide plate is provided inside the heat dissipation channel structure. The guide plate is inclined inside the heat dissipation channel to guide airflow.

[0026] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the guide plate is set at an angle in the heat dissipation channel to guide the air flow, so that the air passes through the heat dissipation channel more orderly, avoids air turbulence, improves heat dissipation efficiency, and ensures that the heat generated by the photovoltaic glass and junction box can be carried away more effectively, further reducing the risk of fire.

[0027] Compared with existing technologies, the beneficial effects of the photovoltaic insulation integrated panel provided by this utility model are:

[0028] Highly efficient heat dissipation, improving power generation efficiency: This invention optimizes the heat dissipation channel structure by using trapezoidal ribs to form a specific heat dissipation channel space, increasing the volume of the heat dissipation channel and the airflow area, allowing air to flow more smoothly and quickly remove the heat generated by the photovoltaic glass and junction box. Simultaneously, the thermally conductive coating on the surface of the photovoltaic glass and the heat dissipation fins of the junction box further improve heat transfer efficiency, effectively reducing the equipment temperature. Actual testing shows that compared to traditional heat dissipation channels;

[0029] Enhancing structural stability and safety: The trapezoidal ribs are connected to the photovoltaic glass and insulation board using structural adhesive or thermally conductive structural adhesive, which not only improves heat transfer efficiency but also enhances the overall structural stability. This robust connection method can withstand certain external impacts, reducing the risk of component damage due to vibration or displacement. Furthermore, effective heat dissipation reduces the risk of fire, ensuring the safety of the building and its occupants. In fire performance tests, the integrated panel using this novel heat dissipation channel significantly slowed the spread of fire in simulated fire scenarios, buying more time for evacuation and firefighting. The structural adhesive, with its excellent bonding properties, tightly bonds the trapezoidal ribs to the photovoltaic glass and insulation board into a single unit. The thermally conductive structural adhesive, while ensuring a strong connection, also utilizes its good thermal conductivity to accelerate heat transfer from the photovoltaic glass to the heat dissipation channel, improving heat dissipation efficiency.

[0030] Optimized thermal insulation performance and extended service life: The heat insulation layer on one side of the insulation board effectively prevents heat from entering the insulation board through the heat dissipation channels, maintaining the good thermal insulation performance of the insulation board and avoiding aging of the insulation material due to heat. Long-term monitoring has shown that buildings using this integrated panel...

[0031] Convenient for construction, installation and maintenance: The integrated panel has a clever splicing structure design. The protrusions and grooves make splicing simple and convenient, and the heat dissipation channels at the splicing points are interconnected, ensuring the overall heat dissipation effect. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.

[0033] Figure 1 Here is an example diagram of a photovoltaic integrated insulation panel;

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 10. Photovoltaic glass for power generation; 20. Insulation board; 30. Junction box; 40. Heat dissipation channel structure; 41. Trapezoidal rib. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0037] like Figure 1 The image shows a first embodiment of a photovoltaic insulation integrated panel provided by this utility model. In this embodiment, it includes a photovoltaic glass 10, an insulation board 20, a junction box 30, and a heat dissipation channel structure 40. The photovoltaic glass 10 is located on the outer layer of the integrated panel, and the insulation board 20 is located on the inner layer of the integrated panel. A heat dissipation channel structure 40 is provided between the photovoltaic glass 10 and the insulation board 20. The junction box 30 is installed on the side of the photovoltaic glass 10 close to the insulation board 20, and part of the junction box 30 is located inside the heat dissipation channel structure 40.

[0038] In the above technical solution, the heat dissipation channel structure 40 is composed of multiple spaced trapezoidal ribs 41, and a trapezoidal heat dissipation channel space is formed between adjacent trapezoidal ribs 41; the short side of the trapezoidal rib 41 is connected to the photovoltaic glass 10, and the long side is connected to the insulation board 20, and the trapezoidal rib 41 is fixedly connected to both the photovoltaic glass 10 and the insulation board 20.

[0039] Furthermore, in the above technical solution, the trapezoidal rib 41 is connected to the photovoltaic glass 10 and the insulation board 20 by structural adhesive or thermally conductive structural adhesive. The thermally conductive structural adhesive is filled on the contact surface between the trapezoidal rib 41 and the photovoltaic glass 10 and the insulation board 20 to enhance heat conduction and ensure the connection is firm.

[0040] Structural adhesives: Common structural adhesives include epoxy resins, polyurethanes, and silicones. Epoxy resin structural adhesives are composed of epoxy resin, curing agents, and additives, and have high strength and good chemical resistance after curing. Polyurethane structural adhesives use polyisocyanates and polyols as main raw materials, and have good flexibility, adhesion, and weather resistance. Silicone structural adhesives are based on silicone polymers and possess excellent high and low temperature resistance, weather resistance, and electrical insulation. Thermally conductive structural adhesives: These typically use silicone as a matrix and add high thermal conductivity fillers (such as alumina, boron nitride, and silicon carbide).

[0041] Furthermore, in the above technical solution, the integrated panel also includes a frame that surrounds the edges of the photovoltaic glass 10, the insulation board 20, and the junction box 30; the frame is provided with an air inlet and an air outlet, the air inlet being connected to one end of the heat dissipation channel structure 40, and the air outlet being connected to the other end of the heat dissipation channel structure 40.

[0042] Furthermore, in the above technical solution, the surface of the photovoltaic glass 10 near the insulation board 20 is coated with a thermally conductive coating. The thermally conductive coating covers the area where the photovoltaic glass 10 contacts the heat dissipation channel structure 40, thereby improving the heat transfer efficiency from the photovoltaic glass 10 to the heat dissipation channel structure 40.

[0043] Furthermore, in the above technical solution, a heat insulation layer is provided on the side of the insulation board 20 near the photovoltaic glass 10. The heat insulation layer is located between the heat dissipation channel structure 40 and the main body of the insulation board 20. The edge of the heat insulation layer is sealed to the edge of the heat dissipation channel structure 40 to prevent heat from the heat dissipation channel structure 40 from entering the main body of the insulation board 20.

[0044] Furthermore, in the above technical solution, the insulation layer is made of aerogel felt or ceramic fiber felt, and the insulation layer is installed on the insulation board 20 by adhesive or mechanical fixation.

[0045] Furthermore, in the above technical solution, the integrated panel is provided with a splicing structure in the length or width direction. The splicing structure includes protrusions and grooves provided on the edge of the integrated panel. Adjacent integrated panels are spliced ​​by the cooperation of the protrusions and grooves, and the heat dissipation channel structure 40 at the splicing point is interconnected.

[0046] Furthermore, in the above technical solution, a sealing strip is provided at the splice, and the sealing strip is located on the contact surface between the protrusion and the groove to prevent air leakage.

[0047] Furthermore, in the above technical solution, a guide plate is provided inside the heat dissipation channel structure 40. The guide plate is inclinedly arranged inside the heat dissipation channel to guide airflow.

[0048] Specifically, the principle of this utility model is as follows:

[0049] Optimization principle of heat dissipation channel structure: This utility model uses spaced trapezoidal ribs to construct heat dissipation channels. The trapezoidal structure increases the heat dissipation space, which is conducive to natural air convection. According to the principles of fluid mechanics, when air flows within the trapezoidal channel, it forms a relatively stable convection cycle. Cold air enters from the inlet, is heated and rises within the trapezoidal channel, and is discharged from the outlet, forming a continuous airflow that carries away heat. Simultaneously, the connection method between the trapezoidal ribs and the photovoltaic glass and insulation board ensures the stability of the structure, providing reliable physical support for heat dissipation.

[0050] High-efficiency thermal conductivity and insulation principle: The thermally conductive coating on the surface of the photovoltaic glass uses materials such as nano-carbon materials, silver nanowires, or thermally conductive silicone, which have extremely high thermal conductivity. Taking nano-carbon materials as an example, their unique microstructure allows them to quickly conduct heat, rapidly transferring the heat generated by the photovoltaic glass to the heat dissipation channels. Meanwhile, the insulation layer on one side of the insulation board, such as aerogel felt or ceramic fiber felt, has extremely low thermal conductivity, effectively preventing heat from the heat dissipation channels from being conducted to the insulation board. The nanoporous structure of aerogel felt results in extremely low thermal conductivity, effectively insulating heat and maintaining the stable performance of the insulation board.

[0051] Dustproof and Maintenance Principle: The dust filters at the air inlet and outlet are fixed by clips or adhesive, effectively filtering dust from the air and preventing it from entering the heat dissipation channels. This design is based on the principle of filtration, utilizing the fine pores of the dust filter to block dust particles without affecting airflow. When maintenance is required, simply remove the dust filter for cleaning or replacement; the operation is simple and convenient, reducing maintenance costs.

Claims

1. A photovoltaic thermal integrated panel, characterized in that, The device includes photovoltaic glass, an insulation board, a junction box, and a heat dissipation channel structure. The photovoltaic glass is located on the outer layer of an integrated panel, and the insulation board is located on the inner layer. The heat dissipation channel structure is provided between the photovoltaic glass and the insulation board. The junction box is installed on the side of the photovoltaic glass near the insulation board, and the junction box portion is located within the heat dissipation channel structure. The heat dissipation channel structure consists of multiple spaced trapezoidal ribs, forming a trapezoidal heat dissipation channel space between adjacent trapezoidal ribs. The short side of each trapezoidal rib is connected to the photovoltaic glass, and the long side is connected to the insulation board. The trapezoidal ribs are fixedly connected to both the photovoltaic glass and the insulation board. The trapezoidal ribs are connected to the photovoltaic glass and the insulation board using structural adhesive or thermally conductive structural adhesive. The thermally conductive structural adhesive is filled on the contact surface between the trapezoidal ribs and the photovoltaic glass and the insulation board to enhance heat conduction and ensure a firm connection.

2. The photovoltaic thermal integrated panel according to claim 1, wherein, The integrated panel also includes a frame that surrounds the edges of the photovoltaic glass, the insulation board, and the junction box; the frame is provided with an air inlet and an air outlet, the air inlet being connected to one end of the heat dissipation channel structure, and the air outlet being connected to the other end of the heat dissipation channel structure.

3. The photovoltaic thermal integrated panel according to claim 2, wherein, The surface of the photovoltaic glass near the insulation board is coated with a thermally conductive coating. The thermally conductive coating covers the area where the photovoltaic glass contacts the heat dissipation channel structure, thereby improving the heat transfer efficiency from the photovoltaic glass to the heat dissipation channel structure.

4. The photovoltaic thermal integrated panel according to claim 3, wherein, A heat insulation layer is provided on the side of the insulation board near the photovoltaic glass. The heat insulation layer is located between the heat dissipation channel structure and the main body of the insulation board. The edge of the heat insulation layer is sealed to the edge of the heat dissipation channel structure to prevent heat from the heat dissipation channel structure from entering the main body of the insulation board.

5. A photovoltaic thermal integrated panel as claimed in claim 4, wherein, The insulation layer is made of aerogel felt or ceramic fiber felt, and is installed on the insulation board by adhesive or mechanical fixation.

6. A photovoltaic thermal integrated panel as claimed in claim 5, wherein, The integrated panel has a splicing structure in the length or width direction. The splicing structure includes protrusions and grooves on the edge of the integrated panel. Adjacent integrated panels are spliced ​​together by the cooperation of the protrusions and grooves, and the heat dissipation channel structure at the splicing point is interconnected.

7. A photovoltaic thermal integrated panel as claimed in claim 6, wherein, A sealing strip is provided at the joint, and the sealing strip is located on the contact surface between the protrusion and the groove to prevent air leakage.

8. A photovoltaic thermal integrated panel as claimed in claim 7, wherein, The heat dissipation channel structure is equipped with a guide plate, which is inclinedly arranged in the heat dissipation channel to guide airflow.

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