Solar photovoltaic vacuum fireproof thermal insulation layer and firewall thereof

Abstract

The invention relates to a solar photovoltaic vacuum fireproof heat preservation layer and a firewall thereof, the solar photovoltaic vacuum fireproof heat preservation layer comprises a support, a vacuum glass assembly and a photovoltaic assembly, the vacuum glass assembly at least comprises inner layer glass and a vacuum layer, and a vacuumized inner cavity and a plurality of supporting columns are arranged in the vacuum layer; the photovoltaic module at least comprises a photovoltaic element and first protective glass, and the first protective glass is connected with the photovoltaic element; a first low-e coating is arranged between the inner-layer glass and the vacuum layer, and the air pressure of the inner cavity is less than 0.1 Pa. According to the fireproof heat preservation layer, the gas pressure of the inner cavity is set to be smaller than 0.1 Pa, and gas heat conduction and convective heat transfer in the vacuum layer are effectively blocked; the radiation heat transfer of the glass is weakened through the first low-e coating, so that the fireproof thermal insulation layer has excellent thermal insulation performance; the first protective glass and the inner-layer glass are adopted to form an integrated two-layer glass structure, so that the fireproof thermal insulation layer is lighter in weight and thinner in thickness.

Description

Technical Field

[0001] The present application relates to the technical field of building photovoltaic integration, and in particular to a solar photovoltaic vacuum fireproof insulation layer and a fire wall thereof that organically combines photovoltaic technology with vacuum glass technology. Background Art

[0002] Building photovoltaic integration (BPV) is a key technology for achieving zero-energy buildings and has been widely adopted on building facades. PV panels have an extremely high absorption rate. A portion of the absorbed solar radiation is converted into electricity to power the building, while the remaining absorbed solar radiation is converted into waste heat, causing the panel temperature to rise. To improve the thermal insulation performance of building facades and reduce operating energy consumption, traditional building photovoltaic walls typically consist of PV panels, exterior wall insulation materials, and concrete walls.

[0003] Currently, exterior wall insulation materials primarily include polystyrene (EPS), extruded polystyrene (XPS), polyurethane foam (PUR / PIR), rock wool, fiberglass, and expanded perlite. During building operation, sparks from electrical faults or other ignition sources can easily ignite organic insulation materials, causing facade fires. Fires can spread rapidly over a large area due to the chimney effect, ultimately causing severe economic losses and casualties.

[0004] As part of a building's power system, photovoltaic walls face the risk of DC arcing over long-term operation due to factors such as PV connector loss, PV module aging, PV cable insulation cracking, and poor grounding. DC arc temperatures can reach as high as 3,000 to 7,000°C. Compared to AC arcs, DC arcs lack a zero voltage point, making them difficult to extinguish automatically. They can quickly ignite nearby flammable insulation materials, posing a serious threat to the operational safety of building photovoltaic facades. Summary of the Invention

[0005] The embodiments of the present application provide a solar photovoltaic vacuum fireproof insulation layer and a fire wall thereof, which are used to solve the technical problem of fire risk in existing building photovoltaic walls, aiming to effectively reduce the fire risk of building photovoltaic facades and ensure the superior thermal insulation performance of building photovoltaic facades.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] In one aspect, a solar photovoltaic vacuum fireproof insulation layer is provided, comprising:

[0008] Bracket;

[0009] A vacuum glass assembly is installed between the two brackets to reduce and block heat transfer; the vacuum glass assembly comprises at least an inner glass layer and a vacuum layer abutting against the inner glass layer, wherein the vacuum layer is provided with a vacuumed inner cavity and a plurality of support columns;

[0010] A photovoltaic assembly, installed between the two brackets and connected to the vacuum glass assembly, for absorbing solar energy and generating electricity, the photovoltaic assembly comprising at least a photovoltaic element and a first protective glass for protecting the photovoltaic element, the first protective glass being connected to the photovoltaic element;

[0011] Wherein, a first low-e coating is provided between the inner glass and the vacuum layer, and the air pressure of the inner cavity is less than 0.1 Pa.

[0012] Preferably, the photovoltaic element abuts against one end surface of the support column, and the other end surface of the support column abuts against the inner glass, so that the area between the photovoltaic element and the inner glass forms the inner cavity.

[0013] Preferably, the vacuum glass assembly further comprises an outer layer of glass against which the vacuum layer abuts, and a second low-e coating is also provided between the outer layer of glass and the vacuum layer.

[0014] Preferably, the end surface of the photovoltaic element is in abutment connection with the outer glass.

[0015] Preferably, the photovoltaic assembly further comprises a second protective glass abutting against the photovoltaic element, and the second protective glass is connected to the outer glass via an adhesive element.

[0016] Preferably, the outer surface of the first protective glass is provided with a self-cleaning nano coating.

[0017] Preferably, a junction box electrically connected to the photovoltaic element and a cable connected to the junction box are provided in the bracket, and one end of the cable is exposed outside the bracket.

[0018] On the other hand, a fire wall of a solar photovoltaic vacuum fireproof thermal insulation layer is provided, comprising a part to be protected and the above-mentioned solar photovoltaic vacuum fireproof thermal insulation layer, wherein the solar photovoltaic vacuum fireproof thermal insulation layer is fixedly installed on the part to be protected by a fixed connection mechanism.

[0019] Preferably, the part to be protected is a wall structure, a frame structure or a steel structure.

[0020] Preferably, the fixing connection mechanism includes a fixing bolt and a fixing nut, or the fixing connection mechanism includes a fixing nut and an embedded bolt matching the fixing nut.

[0021] The solar photovoltaic vacuum fireproof insulation layer and its firewall include a bracket, a vacuum glass assembly and a photovoltaic assembly. The vacuum glass assembly is installed between two brackets. The vacuum glass assembly includes at least an inner layer of glass and a vacuum layer abutting the inner layer of glass. The vacuum layer is provided with a vacuumized inner cavity and several support columns. The photovoltaic assembly is installed between the two brackets and connected to the vacuum glass assembly. It is used to absorb solar energy and generate electricity. The photovoltaic assembly includes at least a photovoltaic element and a first protective glass for protecting the photovoltaic element. The first protective glass is connected to the photovoltaic element. A first low-e coating is provided between the inner layer of glass and the vacuum layer. The air pressure in the inner cavity is less than 0.1 Pa. As can be seen from the above technical solution, the embodiments of the present application have the following advantages: the gas pressure in the inner cavity of the solar photovoltaic vacuum fireproof insulation layer is set to less than 0.1 Pa, effectively blocking the gas heat conduction and convection heat transfer in the vacuum layer; and the first low-e coating is applied to the surface of the inner glass layer in contact with the vacuum layer, which can significantly reduce the radiant heat transfer of the glass, so that the solar photovoltaic vacuum fireproof insulation layer has excellent thermal insulation performance; because the only small amount of combustible materials EVA and PVB in the fireproof insulation layer of the photovoltaic vacuum glass assembly is already encapsulated in the glass, the fire point generated on the building facade cannot come into contact with the combustible material, thereby significantly improving the fire protection level of the building facade; the use of the first protective glass and the inner glass to form an integrated two-layer glass structure has a lighter weight and thinner thickness than the fireproof insulation layer of the glass structure with more than two layers, thereby saving the use of glass substrate and bracket consumables, and is also more convenient for transportation and installation. The technical problem of fire risk in existing building photovoltaic walls is solved, and the excellent thermal insulation performance of the building photovoltaic wall is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a schematic structural diagram of a solar photovoltaic vacuum fireproof insulation layer according to an embodiment of the present application;

[0024] Figure 2 This is a schematic structural diagram of a solar photovoltaic vacuum fireproof insulation layer according to another embodiment of the present application;

[0025] Figure 3 This is a structural diagram of a solar photovoltaic vacuum fireproof insulation layer according to another embodiment of the present application;

[0026] Figure 4 This is a structural diagram of a fire wall of a solar photovoltaic vacuum fireproof insulation layer according to an embodiment of the present application;

[0027] Figure 5 This is a structural diagram of a firewall of a solar photovoltaic vacuum fireproof insulation layer according to another embodiment of the present application;

[0028] Figure 6 This is a structural schematic diagram of a fire wall with a solar photovoltaic vacuum fireproof insulation layer according to another embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the embodiments of the present application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0032] The embodiment of the present application provides a solar photovoltaic vacuum fireproof insulation layer and a fire wall thereof, which solves the technical problem of fire risk in existing building photovoltaic walls and ensures the superior thermal insulation performance of the building photovoltaic walls.

[0033] Example 1:

[0034] Figure 1 This is a structural schematic diagram of the solar photovoltaic vacuum fireproof insulation layer described in one embodiment of the present application.

[0035] like Figure 1 As shown, the embodiment of the present application provides a solar photovoltaic vacuum fireproof insulation layer, comprising:

[0036] Bracket 31;

[0037] The vacuum glass assembly is installed between the two brackets 31 to reduce and block heat transfer. The vacuum glass assembly includes at least an inner glass 11 and a vacuum layer abutting against the inner glass 11. The vacuum layer is provided with a vacuum cavity 122 and a plurality of support columns 121.

[0038] A photovoltaic assembly is installed between the two brackets 31 and connected to the vacuum glass assembly, and is used to absorb solar energy and generate electricity. The photovoltaic assembly includes at least a photovoltaic element 22 and a first protective glass 21 for protecting the photovoltaic element 22. The first protective glass 21 is connected to the photovoltaic element 22.

[0039] A first low-e coating 141 is provided between the inner glass 11 and the vacuum layer, and the air pressure of the inner cavity 122 is less than 0.1 Pa.

[0040] It should be noted that setting the gas pressure of the inner cavity 122 to less than 0.1 Pa effectively blocks the gas heat conduction and convection heat transfer in the vacuum layer; and coating the surface of the inner glass in contact with the vacuum layer with a first low-e coating can significantly weaken the radiant heat transfer of the glass, so that the solar photovoltaic vacuum fireproof insulation layer has excellent thermal insulation performance. If the solar photovoltaic vacuum fireproof insulation layer is used in the construction industry, it can reduce the energy consumption of building operation and greatly benefit the carbon emissions of the building. In the embodiment of the present application, the solar photovoltaic vacuum fireproof insulation layer can convert the solar energy irradiated on the solar photovoltaic vacuum fireproof insulation layer into electrical energy through the photovoltaic element 22 to achieve power supply. If the solar photovoltaic vacuum fireproof insulation layer is used in the construction industry, the solar photovoltaic vacuum fireproof insulation layer provides favorable conditions for achieving zero-energy buildings. The first protective glass 21 ensures that the photovoltaic element 22 can make efficient use of solar radiation in the long term, and improves the operational safety of the solar photovoltaic vacuum fireproof insulation layer.

[0041] In the embodiment of the present application, the bracket 31 is used to support and fix. Figure 1 As shown, both ends of the vacuum glass assembly and the photovoltaic assembly are mounted on a bracket 31 , so that the vacuum glass assembly and the photovoltaic assembly are fixed on two brackets 31 .

[0042] In the embodiment of the present application, the solar photovoltaic vacuum fireproof and thermal insulation layer uses a first protective glass and an inner glass layer to form an integrated two-layer glass structure. Compared to structures with two or more layers of glass, the fireproof and thermal insulation layer is lighter and thinner, thereby saving on glass substrate and bracket 31 consumables, making it easier to transport and install, and reducing the burden on building structures used in the construction industry.

[0043] In the embodiment of the present application, the support column 121 plays a supporting role to prevent the components on both sides of the vacuum layer from sinking into the inner cavity 122. The support column 121 can be made of materials such as metal, glass or aerogel.

[0044] In the embodiment of the present application, the photovoltaic elements 22 can be selected as crystalline silicon cells or thin-film cells. The coverage ratio of the crystalline silicon cells or thin-film cells in the photovoltaic elements 22 can be adjusted according to user needs. This allows the solar photovoltaic vacuum fireproof insulation layer to maximize its energy-saving potential when applied to buildings by rationally designing the cell coverage ratio of the photovoltaic elements 22 and selecting appropriate cells based on geographic information and climatic conditions. This can maximize the energy-saving potential of the solar photovoltaic vacuum fireproof insulation layer when applied to buildings.

[0045] In the embodiment of the present application, the first protective glass 21 and the inner glass 11 of the solar photovoltaic vacuum fireproof insulation layer both contain a small amount of organic combustible material, namely PVB film. The thickness of the PVB film is only about 0.3 to 0.5 mm. The solar photovoltaic vacuum fireproof insulation layer encapsulates the PVB film in the glass, thereby avoiding direct contact between the external fire source and the PVB film, effectively improving the fire protection level of the solar photovoltaic vacuum fireproof insulation layer. In addition, the photovoltaic element 22 will be corroded and aged by the external environment during long-term operation, thereby posing a risk of DC arcing. When DC arcing occurs, it cannot directly contact the combustible material PVB film due to the obstruction of the first protective glass 21 and the inner glass 11. Therefore, when the photovoltaic insulation cable of the photovoltaic element 22 where DC arcing occurs is burned out, it will automatically extinguish, and no large-scale fire spread will continue, thereby protecting the operation safety of the photovoltaic element 22.

[0046] The present application provides a solar photovoltaic vacuum fireproof insulation layer, which includes a bracket, a vacuum glass assembly and a photovoltaic assembly. The vacuum glass assembly is installed between two brackets, and the vacuum glass assembly includes at least an inner layer of glass and a vacuum layer abutting the inner layer of glass. A vacuumized inner cavity and several support columns are provided in the vacuum layer; the photovoltaic assembly is installed between the two brackets and connected to the vacuum glass assembly, and is used to absorb solar energy and generate electricity. The photovoltaic assembly includes at least a photovoltaic element and a first protective glass for protecting the photovoltaic element, and the first protective glass is connected to the photovoltaic element; a first low-e coating is provided between the inner layer of glass and the vacuum layer, and the air pressure in the inner cavity is less than 0.1 Pa. The gas pressure in the inner cavity of the solar photovoltaic vacuum fireproof insulation layer is set to less than 0.1Pa, which effectively blocks the heat conduction and convection heat transfer of the gas in the vacuum layer; and the first low-e coating is coated on the surface of the inner glass in contact with the vacuum layer, which can greatly weaken the radiation heat transfer of the glass, so that the solar photovoltaic vacuum fireproof insulation layer has excellent thermal insulation performance; the first protective glass and the inner glass are used to form an integrated two-layer glass structure. Compared with the fireproof insulation layer of the glass structure with more than two layers, the weight is lighter and the thickness is thinner, thereby saving the use of glass substrates and bracket consumables, and it is also more convenient for transportation and installation construction; it solves the technical problem of fire risk in existing building photovoltaic walls and ensures the excellent thermal insulation performance of the building photovoltaic walls.

[0047] like Figure 1 As shown, in one embodiment of the present application, the photovoltaic element 22 abuts against one end face of the support column 121, and the other end face of the support column 121 abuts against the inner layer of glass 11, so that the area between the photovoltaic element 22 and the inner layer of glass 11 forms an inner cavity 122.

[0048] It should be noted that by directly mounting the photovoltaic elements 22 on the support columns 121 of the vacuum layer, the solar photovoltaic vacuum fireproof insulation layer forms an integrated two-layer glass structure composed of the first protective glass 21 and the inner glass 11. This two-layer glass structure reduces the use of glass material, helping to lower product production costs. It also makes the solar photovoltaic vacuum fireproof insulation layer lighter and thinner, making it easier to transport and install. Furthermore, this two-layer glass structure simplifies the production process and improves production efficiency. In traditional three- or four-layer glass designs, the photovoltaic elements are first encapsulated within two layers of protective glass, then combined with the third layer of glass through vacuuming and packaging techniques to form a vacuum photovoltaic insulation layer. The two-layer glass design omits the step of encapsulating the photovoltaic elements within the protective glass, a step that typically takes approximately 40 minutes. Although the photovoltaic elements are not encapsulated within the two layers of protective glass in the two-layer glass design, the photovoltaic cells are still protected from direct exposure to external environmental conditions, thus maintaining their power generation performance. At the same time, the inner glass, supporting columns and photovoltaic elements will not form a loop, and short circuit will not occur, ensuring the safe operation of the photovoltaic elements.

[0049] Figure 2 This is a structural schematic diagram of a solar photovoltaic vacuum fireproof insulation layer described in another embodiment of the present application.

[0050] like Figure 2 As shown, in one embodiment of the present application, the vacuum glass assembly further includes an outer glass 13 abutting the vacuum layer, and a second low-e coating 142 is also provided between the outer glass 13 and the vacuum layer.

[0051] It should be noted that the vacuum glass assembly of this solar photovoltaic vacuum fireproof and thermal insulation layer comprises an inner glass layer 11, a vacuum layer, and an outer glass layer 13, stacked sequentially. Because the air pressure within the inner cavity 122 is less than 0.1 Pa, the internal gas heat conduction and convection heat transfer are extremely weak and almost negligible. Therefore, the heat exchange between the inner and outer glass layers 11, 13 primarily comes from radiation heat transfer between the two opposing glass surfaces and heat conduction through the support columns 121. Applying a first low-e coating 141 to the surface of the inner glass 11 in close contact with the inner cavity 122, and a second low-e coating 142 to the surface of the outer glass 13 in close contact with the inner cavity 122, significantly reduces the radiation heat transfer between the inner and outer glass layers 11, 13. Furthermore, using a low-thermal conductivity material, such as aerogel, to construct the support columns 121 significantly reduces the amount of heat conducted through them. This significantly improves the thermal insulation performance of this solar photovoltaic vacuum fireproof and thermal insulation layer, thereby effectively reducing building operating energy consumption and carbon emissions. The photovoltaic elements 22 of the solar photovoltaic vacuum fireproof insulation layer are directly installed on the outer glass 13.

[0052] Figure 3 This is a structural schematic diagram of a solar photovoltaic vacuum fireproof insulation layer described in another embodiment of the present application.

[0053] like Figure 3 As shown, in one embodiment of the present application, the photovoltaic assembly further includes a second protective glass 23 abutting against the photovoltaic element 22 , and the second protective glass 23 is connected to the outer glass 13 via an adhesive element 6 .

[0054] It should be noted that the photovoltaic components of this solar photovoltaic vacuum fireproof insulation layer are integrated with the vacuum glass components via adhesive elements 6, with the photovoltaic components closer to the exterior and the vacuum glass components closer to the interior. The photovoltaic components consist of a first protective glass 21, photovoltaic elements 22, and a second protective glass 23. The photovoltaic elements 22 convert solar energy into electricity through the photovoltaic effect. The generated photovoltaic power can be consumed locally within the building, thus avoiding long-distance transmission losses, reducing the likelihood of curtailment, and reducing the amount of photovoltaic power generated online. Using different photovoltaic cell coverage ratios or different types of photovoltaic cells to manufacture the photovoltaic elements 22 can alter the optical properties of the photovoltaic components, ultimately changing the thermal performance of the solar photovoltaic vacuum fireproof insulation wall. When the photovoltaic elements 22 are opaque crystalline silicon cells and the photovoltaic coverage ratio is 100%, the majority of solar radiation is absorbed by the photovoltaic elements 22, causing the temperature of the photovoltaic glass layer to rise. Due to the presence of the inner and outer layers of glass in the vacuum glass assembly, heat transfer from the photovoltaic module to the building's walls is hindered, significantly reducing indoor solar heat gain and, consequently, the building's cooling load. Therefore, this solar photovoltaic vacuum fireproof insulation layer is suitable for use in areas primarily focused on cooling. When the photovoltaic elements 22 are translucent thin-film cells, or when the photovoltaic cell coverage is less than 100%, incident solar radiation can pass through the translucent vacuum glass assembly and the glass of the photovoltaic module and be absorbed by the outermost surface of the building's wall 4, converting it into heat energy. Due to the high thermal resistance of the vacuum glass assembly and the glass in the photovoltaic module, heat transfer from the wall 4 to the outside is hindered, thereby increasing indoor solar heat gain. Therefore, this solar photovoltaic vacuum fireproof insulation layer is suitable for use in areas primarily focused on heating.

[0055] like Figures 1 to 3 As shown, in one embodiment of the present application, the outer surface of the first protective glass 21 is provided with a self-cleaning nano coating 24 .

[0056] It should be noted that the self-cleaning nano coating 24 can be a self-cleaning super-hydrophilic nano coating. Before the first protective glass is tempered, the self-cleaning nano coating 24 is applied to the surface of the first protective glass 21 close to the outdoor side by a screen printing process, which can effectively reduce the deposition of dust on the glass, thereby ensuring that the photovoltaic module can make efficient use of solar radiation in the long term. At the same time, the risk of hot spot effect caused by dust deposition will also be reduced, thereby improving the operational safety of the solar photovoltaic vacuum fireproof insulation layer and alleviating the aging process of the photovoltaic module. In addition, the cleaning and maintenance workload and cleaning and maintenance costs of the building facade will also be reduced due to the reduction in dust deposition, thereby bringing corresponding economic benefits. In this embodiment, the self-cleaning nano coating 24 is coated on the surface of the first protective glass 21 close to the outdoor side, which can effectively reduce the deposition of dust on the glass and reduce the occurrence of hot spot effect caused by dust deposition.

[0057] like Figures 1 to 3 As shown, in one embodiment of the present application, a junction box 52 electrically connected to the photovoltaic element 22 and a cable 51 connected to the junction box 52 are provided in the bracket 31 , and one end of the cable 51 is exposed outside the bracket 31 .

[0058] It should be noted that the junction box 52 and cable 51 are located on the bracket 31 at the lower end of the vacuum glass assembly and photovoltaic assembly. This solar photovoltaic vacuum fireproof insulation layer cleverly conceals the junction box 52 and cable 51 within the bracket 31, greatly reducing the corrosion damage to the junction box 52 and cable 51 caused by outdoor environmental conditions. This effectively alleviates the aging process of the junction box 52 and cable 51, avoids direct contact between the electrical connection components and the outdoor environment, and is conducive to extending the service life of the junction box 52 and cable 51, reducing the risk of electrical connection failure, while ensuring the aesthetics and neatness of the solar photovoltaic vacuum fireproof insulation layer and improving the operational stability of the solar photovoltaic vacuum fireproof insulation layer.

[0059] Example 2:

[0060] Figure 4 This is a structural diagram of a fire wall of a solar photovoltaic vacuum fireproof insulation layer according to an embodiment of the present application. Figure 5 This is a structural diagram of a firewall of a solar photovoltaic vacuum fireproof insulation layer according to another embodiment of the present application. Figure 6 This is a structural schematic diagram of a fire wall with a solar photovoltaic vacuum fireproof insulation layer according to another embodiment of the present application.

[0061] like Figures 1 to 6As shown, an embodiment of the present application provides a fire wall of a solar photovoltaic vacuum fireproof thermal insulation layer, comprising a part to be protected 4 and the above-mentioned solar photovoltaic vacuum fireproof thermal insulation layer, and the solar photovoltaic vacuum fireproof thermal insulation layer is fixedly installed on the part to be protected 4 through a fixed connection mechanism.

[0062] It should be noted that the content of the solar photovoltaic vacuum fireproof insulation layer in the second embodiment has been explained in the first embodiment.

[0063] In the embodiment of the present application, the protected member 4 can be a wall structure, a frame structure or a steel structure. The fixing connection mechanism includes a fixing bolt 34 and a fixing nut 32, or the fixing connection mechanism includes a fixing nut 32 and an embedded bolt 33 matching the fixing nut 32.

[0064] like Figures 1 to 3 As shown, the part to be protected 4 is selected as the wall structure of the wall, and the embedded bolts 33 are inserted into the part to be protected 4 through the bracket 31 to achieve the fixed installation of the solar photovoltaic vacuum fireproof insulation layer on the part to be protected 4, thereby forming a glass curtain wall structure. Figures 4 to 6 As shown, the protected component 4 is a frame structure 7. The fixing mechanism includes fixing bolts 34 and two fixing nuts 32, which secure the solar photovoltaic vacuum fireproof insulation layer to the frame structure 7, making it suitable for building facades primarily based on frame structures. The fire wall of the solar photovoltaic vacuum fireproof insulation layer is mounted on the wall 4 using brackets 31, fixing nuts 32, and embedded bolts 33, or alternatively, on the frame structure 7 using brackets 31, fixing nuts 32, and fixing bolts 34. The fire wall of the solar photovoltaic vacuum fireproof insulation layer is installed using a removable assembly technique. In the event of an electrical failure or other damage to the photovoltaic module, the fixing nuts 32 can be removed to remove the photovoltaic module from the solar photovoltaic vacuum fireproof insulation layer for inspection, repair, or replacement, ensuring the long-term stable and efficient operation of the photovoltaic elements 22. The fire wall installation method of the solar photovoltaic vacuum fireproof insulation layer can also be integrated with prefabricated building technology. First, the photovoltaic modules and vacuum glass components are prefabricated in a factory and installed on the prefabricated wall 4. The solar photovoltaic vacuum fireproof insulation layer is then assembled on the construction site. The assembled solar photovoltaic vacuum fireproof insulation layer has great advantages in improving construction quality, simplifying construction process, reducing construction difficulty, reducing construction cost and alleviating environmental problems caused by the construction process.

[0065] In an embodiment of the present application, the solar photovoltaic vacuum fireproof and thermal insulation fire wall is constructed by integrating vacuum glass components and photovoltaic modules into a solar photovoltaic vacuum fireproof and thermal insulation layer. The fire wall is then mounted on a wall or frame structure using brackets and fixed connections. The brackets and fixed connections can be detachable and assembled, facilitating integration with prefabricated buildings and facilitating regular maintenance.

[0066] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0067] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0068] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0069] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0070] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A solar photovoltaic vacuum fireproof insulation layer, characterized in that: include: Bracket; A vacuum glass assembly is installed between the two brackets to reduce and block heat transfer; the vacuum glass assembly comprises at least an inner glass layer and a vacuum layer abutting against the inner glass layer, wherein the vacuum layer is provided with a vacuumed inner cavity and a plurality of support columns; A photovoltaic assembly, installed between the two brackets and connected to the vacuum glass assembly, for absorbing solar energy and generating electricity, the photovoltaic assembly comprising at least a photovoltaic element and a first protective glass for protecting the photovoltaic element, the first protective glass being connected to the photovoltaic element; Wherein, a first low-e coating is provided between the inner glass and the vacuum layer, and the air pressure of the inner cavity is less than 0.1 Pa.

2. The solar photovoltaic vacuum fireproof insulation layer according to claim 1, characterized in that: The photovoltaic element abuts against one end surface of the support column, and the other end surface of the support column abuts against the inner glass, so that the area between the photovoltaic element and the inner glass forms the inner cavity.

3. The solar photovoltaic vacuum fireproof insulation layer according to claim 1, characterized in that: The vacuum glass assembly further includes an outer layer of glass against which the vacuum layer abuts, and a second low-e coating is also provided between the outer layer of glass and the vacuum layer.

4. The solar photovoltaic vacuum fireproof insulation layer according to claim 3, characterized in that: The end surface of the photovoltaic element is in abutment connection with the outer glass.

5. The solar photovoltaic vacuum fireproof insulation layer according to claim 3, characterized in that: The photovoltaic assembly further includes a second protective glass abutting against the photovoltaic element, and the second protective glass is connected to the outer glass via an adhesive element.

6. The solar photovoltaic vacuum fireproof insulation layer according to claim 1, characterized in that: The outer surface of the first protective glass is provided with a self-cleaning nano coating.

7. The solar photovoltaic vacuum fireproof insulation layer according to claim 1, characterized in that: A junction box electrically connected to the photovoltaic element and a cable connected to the junction box are arranged in the bracket, and one end of the cable is exposed outside the bracket.

8. A solar photovoltaic vacuum fireproof insulation firewall, characterized in that: It comprises a part to be protected and the solar photovoltaic vacuum fireproof thermal insulation layer according to any one of claims 1 to 7, wherein the solar photovoltaic vacuum fireproof thermal insulation layer is fixedly installed on the part to be protected by a fixed connection mechanism.

9. The fire wall of solar photovoltaic vacuum fireproof insulation layer according to claim 8, characterized in that: The part to be protected is a wall structure, a frame structure or a steel structure.

10. The fire wall of solar photovoltaic vacuum fireproof insulation layer according to claim 8, characterized in that: The fixing connection mechanism includes a fixing bolt and a fixing nut, or the fixing connection mechanism includes a fixing nut and an embedded bolt matching the fixing nut.

Images