Light roof photovoltaic support system

Abstract

The utility model relates to the field of photovoltaic power station structural design, in particular to a light roof photovoltaic support system. The photovoltaic support comprises a plurality of photovoltaic supports. A plurality of groups of photovoltaic brackets are longitudinally and transversely arranged to form a whole roof photovoltaic system; the adjacent photovoltaic supports are connected through closed steel plates. The frame of the photovoltaic assembly has certain rigidity and weight, can replace a steel structure support in a conventional photovoltaic system, greatly reduces the dead weight of the structure, has no gap between the photovoltaic assembly and the ground, greatly reduces the wind load, and is especially suitable for being used on the roof of an existing building.

Description

Technical Field

[0001] The utility model relates to the field of structural design of photovoltaic power stations, and particularly relates to a light roof photovoltaic support system. Background Technique

[0002] As a clean and renewable new energy source, the application of solar energy is growing at an unprecedented rate globally, especially in the field of photovoltaic power generation. With the progress of technology and the reduction of costs, photovoltaic power station projects have gradually become an important force in promoting the transformation of the energy structure and achieving green and low-carbon development. Among them, distributed photovoltaic power stations have been widely favored due to their flexible installation methods, low construction costs, and friendliness to the power grid. The rapid development of distributed photovoltaic power stations not only promotes the prosperity of the new energy industry but also injects new vitality into the sustainable development of the social economy. However, while promoting this process, many technical challenges and practical problems are also faced. Especially in the process of installing a photovoltaic support system on the roof of an existing building, how to ensure structural safety and that the waterproof and thermal insulation performance is not affected has become the focus of attention in the industry.

[0003] When adding a photovoltaic system to an existing roof, the primary consideration is the structural safety issue. As an additional load, factors such as the weight and wind load of the photovoltaic support system will affect the structure of the existing building. Especially the wind load, as one of the main force sources of the photovoltaic system, its upward wind uplift force often becomes the key factor in controlling the design. Traditional methods of resisting upward wind loads, such as increasing the self-weight of the structural support system, although can effectively improve the wind resistance of the structure, may also make the structure too bulky, which is not conducive to construction and maintenance; while another method, that is, setting up an anchor system by drilling vertical holes in the original floor slab, although can more effectively transfer the wind load to the foundation structure, often causes irreversible damage to the waterproof and thermal insulation systems of the roof, and the subsequent repair is difficult and costly.

[0004] The waterproof and thermal insulation systems are the two core functional layers of the building roof, and their integrity and effectiveness are crucial for maintaining the health of the building structure, extending the service life, and ensuring the comfort of the occupants. The waterproof layer, as the first line of defense against external water penetration, can effectively prevent rainwater, snowmelt, etc. from penetrating into the building interior, avoiding damage to the walls and floors due to moisture, and even causing serious problems such as mildew and corrosion. The thermal insulation layer, on the other hand, keeps the indoor temperature stable by reducing heat transfer, reduces energy consumption, and improves the energy efficiency and comfort of the living environment.

[0005] The photovoltaic support not only bears the photovoltaic panels and converts solar energy into electrical energy, but also needs to be firmly fixed on the building roof to ensure its long-term stable operation. In this process, whether using the traditional method of installing anchor bolts by drilling holes or trying other more advanced fixing technologies, it will inevitably cause a certain degree of intrusion into the roof structure, especially directly threatening the integrity of the waterproof layer and the insulation layer.

[0006] When installing anchor bolts by drilling holes, the drilling operation may penetrate the waterproof layer, resulting in local waterproof failure and forming potential leakage points. Even if the waterproof material is repaired immediately after drilling, due to factors such as the bonding strength and aging speed difference between the new and old materials, these repaired areas often become high-incidence areas of leakage in the future. At the same time, drilling may also damage the continuity of the insulation layer and affect the insulation effect. Especially in cold regions, the damage of the insulation layer will directly lead to rapid heat loss indoors and increase heating energy consumption.

[0007] In addition to installing by drilling holes, other fixing methods such as gluing and fixture fixing, although can reduce the direct damage to the waterproof layer and the insulation layer to a certain extent, may also leave hidden dangers due to improper material selection and poor construction technology. For example, the adhesive may lose its viscosity due to factors such as aging and temperature change, resulting in the loosening of the photovoltaic support; fixture fixing may cause local stress concentration due to insecure installation or uneven long-term stress, and then damage the waterproof layer and the insulation layer. Although it can be repaired by post-remedial measures, these repair measures are often difficult to fully restore the function of the original system, and the long-term effect is worrying. Summary of the Utility Model

[0008] The purpose of the present utility model is to overcome the problems in the above-mentioned prior art, such as the over-limit of the original design load caused by increasing the self-weight of the support and the damage of the roof waterproof system by the anchor structure, and to provide a light-duty roof photovoltaic support system.

[0009] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0010] The present utility model provides a light-duty roof photovoltaic support system, including a plurality of photovoltaic supports; a plurality of groups of photovoltaic supports are arranged longitudinally and horizontally to form the entire roof photovoltaic system; adjacent photovoltaic supports are connected by a closed steel plate;

[0011] The photovoltaic support includes a first component outer frame, a second component outer frame and a component inner frame; both ends of the photovoltaic panel are connected to the first component outer frame and the second component outer frame respectively; the middle part of the photovoltaic panel is connected to a plurality of component inner frames.

[0012] Preferably, both ends of the closed steel plate are connected to the component outer frame of the photovoltaic support.

[0013] Preferably, the photovoltaic panel is adhesively connected to the first component outer frame, the second component outer frame, and the component inner frame.

[0014] Preferably, the photovoltaic support system further includes a steel cable; both ends of the steel cable are connected to the parapet wall; the steel cable penetrates through the photovoltaic support system.

[0015] Preferably, holes are reserved in both the component inner frame and the component outer frame, and the steel cable passes through the holes and penetrates through the photovoltaic support system.

[0016] Preferably, both the first component outer frame and the second component outer frame are connected to the concrete foundation.

[0017] Preferably, both the first component outer frame and the second component outer frame are connected to the concrete foundation through anchor bolts.

[0018] Preferably, the concrete foundation is obtained by on-site casting.

[0019] Preferably, the concrete foundation is a precast structure.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] The photovoltaic panel of the present utility model forms a photovoltaic support by connecting customized component frames. Compared with the traditional existing structures, the component frames of the present utility model have a certain rigidity and weight, can replace the steel structure supports in the conventional photovoltaic systems, greatly reduce the structural self-weight, and there is no gap between the photovoltaic support and the ground, greatly reducing the wind load, and is particularly suitable for use on the roofs of existing buildings.

[0022] Furthermore, the wind load is reduced by adding steel plates to enclose between the photovoltaic supports.

[0023] Furthermore, the photovoltaic supports are strung together by steel cables to enhance the overall wind resistance of the photovoltaic supports.

[0024] Furthermore, the component frames can be connected to the foundation by bolts to ensure the stability of the entire photovoltaic support. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present utility model in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in the understanding of the present utility model, and do not specifically limit the shapes and proportional dimensions of the components of the present utility model.

[0026] In the drawings:

[0027] Figure 1 is a top view schematic diagram of the roof photovoltaic support system of the present utility model;

[0028] Figure 2 This is a schematic cross-sectional view of the roof photovoltaic support system of the present utility model;

[0029] Among them, 1 - outer frame of the first component; 2 - outer frame of the second component; 3 - inner frame of the component; 4 - photovoltaic panel; 5 - concrete foundation; 6 - closed steel plate; 7 - steel cable; 8 - steel cable anchor; 9 - anchor bolt. Specific embodiments

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0032] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations. It should also be understood that the terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0033] The following further describes the present utility model in detail with reference to the accompanying drawings:

[0034] The purpose of the present utility model is to provide a light roof photovoltaic support system, such as Figure 1 and Figure 2As shown in the figure, it includes several photovoltaic brackets; several groups of photovoltaic brackets are arranged vertically and horizontally to form the entire roof photovoltaic system; adjacent photovoltaic brackets are connected by a closed steel plate 6; the adjacent photovoltaic brackets are connected by the closed steel plate 6, which is arranged at the gap between the outer frames of adjacent components to reduce wind load, and can be used as a walking passage and also as a cover for component cables; the surface of the closed steel plate 6 can be treated with anti-slip to improve walking safety.

[0035] The photovoltaic bracket includes a first component outer frame 1, a second component outer frame 2 and a component inner frame 3; both ends of the photovoltaic panel 4 are connected to the first component outer frame 1 and the second component outer frame 2 respectively; the middle of the photovoltaic panel 4 is connected to several component inner frames 3; for the component frames of the present utility model, lightweight and high-strength materials such as aluminum alloy or lightweight steel are selected, and the structure is optimized to minimize the self-weight of the photovoltaic bracket system and reduce the load on the existing building structure.

[0036] Specifically, the photovoltaic panel 4 is adhesively connected to the first component outer frame 1, the second component outer frame 2 and the component inner frame 3 to ensure the firmness and tightness of the connection. The photovoltaic panel 4 and the first component outer frame 1, the second component outer frame 2 and the component inner frame 3 are prefabricated and connected in the factory in advance, or can also be connected on site to form a stable frame structure; the photovoltaic bracket of the present utility model can be directly placed on the original building roof, or can be connected to the component frame by setting a foundation on the building roof, for example, connected to the concrete foundation 5 through anchor bolts 9; the design of the concrete foundation 5 should be comprehensively considered according to factors such as the roof structure, the weight of the photovoltaic bracket and the wind load. The concrete foundation 5 can be constructed by prefabrication or in-situ casting to ensure a tight connection with the roof structure. The spacing of the concrete foundations 5 should match the component size to facilitate the installation and fixation of the photovoltaic brackets.

[0037] The component inner frame 3 and the component outer frame both have reserved holes, and the steel cable 7 passes through the reserved holes on the component inner frame 3 and the component outer frame and penetrates through the photovoltaic bracket; both ends of the steel cable 7 are connected to the parapet wall through steel cable anchor fittings 8 to form a stable tie system to improve the wind resistance; the steel cable 7 is made of high-strength stainless steel or galvanized steel wire, with good corrosion resistance and tensile strength.

[0038] The installation method of the photovoltaic bracket of the present utility model is as follows:

[0039] Inside the factory, both ends of the photovoltaic panel 4 are adhesively connected to the first component outer frame 1 and the second component outer frame 2 respectively to ensure firm and sealed connection; at the same time, the middle part of the photovoltaic panel 4 is also adhesively connected to several component inner frames 3 to form a stable prefabricated frame. Conduct a quality inspection on the prefabricated photovoltaic support frame to ensure that there is no looseness or glue leakage at all connection points; the photovoltaic panel 4 can also be adhesively and fixedly connected to the first component outer frame 1, the second component outer frame 2 and the component inner frames 3 on site;

[0040] According to the design drawings, determine the installation positions of the photovoltaic supports on the original building roof and use measuring tools for accurate marking; place several prefabricated photovoltaic support frames at the marked positions to ensure that the frames are in close contact with the roof. If necessary, appropriate fixing parts (such as screws) can be used to fix the frames on the roof;

[0041] Adjust the position of the photovoltaic support to ensure that the distance from the parapet wall is appropriate for facilitating the subsequent installation of the steel cable 7; connect the component outer frame to the concrete foundation 5; connect adjacent photovoltaic supports through the closed steel plate 6; pass the steel cable 7 through the holes reserved on the component frame to ensure that the steel cable can smoothly pass through the entire photovoltaic support; fix both ends of the steel cable 7 on the parapet wall respectively and connect them with the steel cable anchor 8, check whether the entire tie system is firm and reliable, without looseness or deformation, and ensure that the steel cable 7 is tightened and stable;

[0042] After the installation of the photovoltaic support is completed, carry out system debugging work, including checking whether the wiring of the photovoltaic panel 4 is correct, whether the support is stable, etc.; conduct performance tests on the photovoltaic system, including power generation tests, wind resistance tests, etc., to ensure that the system can operate normally and meet the design requirements;

[0043] Regularly check and maintain the photovoltaic support, including checking whether the connections of the frames are loose, whether the steel cables are corroded, etc.; regularly clean the dust and dirt on the surface of the photovoltaic panel 4 to maintain its good power generation efficiency; ensure that this lightweight roof photovoltaic support has good stability and safety during use.

[0044] Embodiment 1

[0045] A lightweight roof photovoltaic support includes a first component outer frame 1, a second component outer frame 2, a component inner frame 3 and a photovoltaic panel 4; both ends of the photovoltaic panel 4 are connected to the first component outer frame 1 and the second component outer frame 2 respectively; the middle part of the photovoltaic panel 4 is connected to 2 component inner frames 3. The component frames of the present utility model are made of lightweight and high-strength aluminum alloy.

[0046] Specifically, the photovoltaic panel 4 is adhesively connected to the first component outer frame 1, the second component outer frame 2, and the component inner frame 3 to ensure the firmness and sealing of the connection. The photovoltaic panel 4, the first component outer frame 1, the second component outer frame 2, and the component inner frame 3 are prefabricated and connected in the factory to form a stable frame structure; the photovoltaic support of the present utility model can be directly placed on the original building roof.

[0047] Holes are provided on the component frame, and the steel cable 7 passes through the reserved holes on the component frame and penetrates through the photovoltaic support; both ends of the steel cable 7 are connected to the parapet wall to form a stable tie system to improve the wind resistance; the steel cable 7 is made of high-strength stainless steel and has good corrosion resistance and tensile strength.

[0048] Embodiment 2

[0049] A lightweight roof photovoltaic support includes a first component outer frame 1, a second component outer frame 2, a component inner frame 3, and a photovoltaic panel 4; both ends of the photovoltaic panel 4 are respectively connected to the first component outer frame 1 and the second component outer frame 2; the middle of the photovoltaic panel 4 is connected to one component inner frame 3. The component frame of the present utility model selects lightweight high-strength lightweight steel.

[0050] Specifically, the photovoltaic panel 4 is adhesively connected to the first component outer frame 1, the second component outer frame 2, and the component inner frame 3 to ensure the firmness and sealing of the connection. The photovoltaic panel 4, the first component outer frame 1, the second component outer frame 2, and the component inner frame 3 are connected on-site to form a stable frame structure; the photovoltaic support of the present utility model is connected to the component frame by setting a concrete foundation 5 on the building roof and is connected to the concrete foundation 5 through anchor bolts 9; the design of the concrete foundation 5 should be comprehensively considered according to factors such as the roof structure, the weight of the photovoltaic support, and the wind load. The concrete foundation 5 can be constructed by prefabrication or in-situ casting to ensure a tight connection with the roof structure. The spacing of the concrete foundations 5 should match the component size to facilitate the installation and fixation of the photovoltaic support.

[0051] Holes are provided on the component frame, and the steel cable 7 passes through the reserved holes on the component frame and penetrates through the photovoltaic support; both ends of the steel cable 7 are connected to the parapet wall to form a stable tie system to improve the wind resistance; the steel cable 7 is made of high-strength stainless steel or galvanized steel wire and has good corrosion resistance and tensile strength.

[0052] In summary, the lightweight roof photovoltaic bracket of the utility model forms a photovoltaic bracket structure by connecting the inner and outer frames, and the photovoltaic panel 4 is directly glued to the frame. The photovoltaic bracket can be directly placed on the original building roof, or it can be connected to the bracket by setting a concrete foundation 5 on the building roof, and the gaps between adjacent photovoltaic brackets are sealed with a closed steel plate 6, which reduces the deadweight of the photovoltaic system and greatly reduces the wind load on the photovoltaic system. The utility model has a simple structure, reasonable force, easy construction, strong adaptability, and is particularly suitable for use on the roofs of existing buildings.

[0053] Secondly, the utility model minimizes the deadweight of the photovoltaic support system and reduces the load on the existing building structure by optimizing material selection and structural design; the design of steel cable 7 and closed steel plate 6 enhances the overall rigidity and wind resistance of the support system, ensuring safe and stable operation under adverse weather conditions; at the same time, the standardization and modularization of the support system components of the utility model facilitates rapid on-site assembly, reduces construction difficulty and cost, and can adapt to existing building roofs of different types and slopes, thereby improving the universality and application scope of the support system.

[0054] The utility model photovoltaic support system is formed by combining multiple lightweight photovoltaic supports in a specific layout and arrangement to form a complete, efficient and stable photovoltaic support system. These photovoltaic supports are not only lightweight, high-strength and easy to install, but also can adapt to roofs of different shapes, sizes and slopes through flexible layout, thereby maximizing the use of roof space and improving power generation efficiency.

[0055] In the longitudinal direction of the roof, multiple photovoltaic brackets are arranged in sequence, and a certain distance is maintained between adjacent brackets to facilitate ventilation and heat dissipation, cleaning and maintenance, and laying of cables and pipelines. At the same time, this arrangement also ensures that the photovoltaic panels 4 can evenly receive solar radiation, thereby improving the overall power generation efficiency.

[0056] In the horizontal direction of the roof, the photovoltaic brackets are arranged side by side, and the number of brackets arranged horizontally can be determined according to the actual width of the roof and the size of the photovoltaic panel 4. By adjusting the horizontal spacing between the brackets, the layout of the photovoltaic array can be further optimized to improve space utilization and power generation efficiency.

[0057] Through the combination of longitudinal and transverse directions, the photovoltaic support can form photovoltaic arrays of various shapes and sizes to adapt to rooftops of different shapes and dimensions. For example, on rectangular or square rooftops, a regular grid arrangement can be adopted; while on rooftops with complex shapes, a more flexible arrangement can be used to ensure that the photovoltaic panels 4 can cover as much rooftop area as possible. Through reasonable layout and arrangement, the photovoltaic array system can maximize the utilization of solar radiation and improve the power generation efficiency. At the same time, the lightweight design reduces the self-weight of the system, decreases wind resistance and shadow occlusion, and further enhances the power generation performance.

[0058] The modular design and standardized production of the photovoltaic support make the system highly flexible and adaptable. It can be customized according to different rooftop shapes, dimensions, and slopes to meet the needs of different users. In addition, the system is also easy to expand and maintain, reducing the long-term operation cost. The photovoltaic support system uses solar energy for power generation, reducing the dependence on traditional energy and environmental pollution. At the same time, the lightweight design and high-efficiency power generation performance of the system also help to reduce building energy consumption and carbon emissions, promoting green buildings and sustainable development.

[0059] The lightweight rooftop photovoltaic support system provided by the present utility model realizes the efficient utilization of rooftop space and maximizes the power generation efficiency through the carefully designed photovoltaic support and flexible arrangement. This system not only has the characteristics of lightweight, high strength, and easy installation, but also has high flexibility, adaptability, and safety. In the future development of green buildings and renewable energy fields, this system will have broad application prospects and market value.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

Claims

1. A lightweight roof photovoltaic support system, characterized in that: It comprises a plurality of photovoltaic brackets; a plurality of groups of photovoltaic brackets are arranged vertically and horizontally to form the entire roof photovoltaic system; adjacent photovoltaic brackets are connected by closed steel plates (6); The photovoltaic support comprises a first component outer frame (1), a second component outer frame (2) and a component inner frame (3); two ends of the photovoltaic panel (4) are respectively connected to the first component outer frame (1) and the second component outer frame (2); and the middle part of the photovoltaic panel (4) is connected to a plurality of component inner frames (3).

2. A lightweight roof photovoltaic support system according to claim 1, characterized in that: Both ends of the closed steel plate (6) are connected to the outer frame of the photovoltaic support assembly.

3. A lightweight roof photovoltaic support system according to claim 1, characterized in that: The photovoltaic panel (4) is connected to the first component outer frame (1), the second component outer frame (2) and the component inner frame (3) by gluing.

4. A lightweight roof photovoltaic support system according to claim 1, characterized in that: The photovoltaic support system further comprises a steel cable (7); both ends of the steel cable (7) are connected to the parapet; and the steel cable (7) runs through the photovoltaic support system.

5. A lightweight roof photovoltaic support system according to claim 4, characterized in that: The inner frame (3) and the outer frame of the component are both provided with holes, and the steel cable (7) passes through the holes and penetrates the photovoltaic support system.

6. A lightweight roof photovoltaic support system according to claim 1, characterized in that: The first component outer frame (1) and the second component outer frame (2) are both connected to the concrete foundation (5).

7. A lightweight roof photovoltaic support system according to claim 6, characterized in that: The first component outer frame (1) and the second component outer frame (2) are both connected to the concrete foundation (5) via anchor bolts (9).

8. A lightweight roof photovoltaic support system according to claim 6, characterized in that: The concrete foundation (5) is obtained by a casting-on-site method.

9. A lightweight roof photovoltaic support system according to claim 6, characterized in that: The concrete foundation (5) is a prefabricated structure.

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