Building roof waterproof photovoltaic building structure

Abstract

The application relates to the field of building waterproofing and photovoltaic power generation, in particular to a building roof waterproof photovoltaic building structure, which comprises a supporting assembly and a photovoltaic assembly arranged on the top of the supporting assembly, the photovoltaic assembly comprises a plurality of photovoltaic panels, water guide members and water passing members, the plurality of photovoltaic panels are regularly arranged on the top of the supporting assembly and are all inclined towards the roof edge, the water guide members are horizontally and spacedly arranged between two adjacent photovoltaic panels for guiding water flow to the roof edge, the water passing members are longitudinally and spacedly arranged between two adjacent photovoltaic panels for horizontally guiding water flow into the water guide members, and the two ends of each water guide member are communicated with other two water guide members. The structure can improve the installation convenience of the photovoltaic panels, can be flexibly applied to roof buildings with different sizes and shapes, can improve the overall waterproof function of the building roof, and can prevent the adverse influence of water leakage between the photovoltaic panels on the roof waterproof.

Description

Technical Field

[0001] This application relates to the fields of building waterproofing and photovoltaic power generation, and in particular to a building roof waterproof photovoltaic building structure. Background Technology

[0002] In the construction industry, roof waterproofing has always been a crucial aspect, its quality directly impacting the functionality and durability of buildings. With the continuous development of the construction industry, people have placed higher demands on the safety, comfort, and environmental friendliness of buildings, leading to increasingly diversified roof functions and structures. From the traditional simple function of providing shelter from wind and rain to today's roofs combining heat insulation, thermal insulation, and aesthetics, roof design and construction have become increasingly complex. Simultaneously, the rise of photovoltaic technology has brought new opportunities to the construction industry. Solar energy, as a clean and renewable energy source, has enormous development potential. Combining photovoltaic panel installation with roof waterproofing not only solves the waterproofing problem of building roofs but also effectively utilizes solar energy resources, achieving energy conservation and emission reduction in buildings, demonstrating promising application prospects and socio-economic benefits. This innovative approach provides new ideas and directions for the sustainable development of the construction industry and is gradually becoming an important trend in future building development. Currently, the common methods for combining photovoltaic (PV) panel installation with roof waterproofing are as follows: One method involves installing a mounting frame on the existing building roof for PV panels. The top of the frame has several rectangular mounting slots and long drainage channels. PV panels are installed one-to-one within these slots, and the frame edges cover the roof edges. During rainy weather, because the drainage channels extend to the frame edges, water flows along the channels to the frame edges and out of the roof, preventing water from seeping into the existing roof and damaging its structure. Another method involves directly splicing the PV panels together using a special adhesive, and then using a support frame at the bottom of the panels to solve the roof waterproofing problem and effectively utilize solar energy. However, these methods have significant problems in practical application. On the one hand, the mounting frame is large in size, making it troublesome to transport to the roof, and the size needs to be customized according to the specific roof area, making it impossible to flexibly install photovoltaic panels on roofs of different shapes and sizes; on the other hand, the splicing method using adhesives is time-consuming and labor-intensive, making it inconvenient to disassemble, replace, and maintain, resulting in high maintenance costs, and there is still a possibility of water leakage in the gaps between photovoltaic panels. Utility Model Content

[0003] In order to improve the ease of installation of photovoltaic panels, make them flexibly applicable to roof buildings of different sizes and shapes, improve the waterproof function of photovoltaic building structures, and prevent water leakage between photovoltaic panels, this application provides a waterproof photovoltaic building structure for building roofs.

[0004] This application provides a waterproof photovoltaic building structure for a building roof, including a supporting component and photovoltaic modules disposed on top of the supporting component. The photovoltaic modules include several photovoltaic panels, water guides, and water passages. The photovoltaic panels are regularly arranged on top of the supporting component and all inclined towards the roof edge. The water guides are laterally spaced between adjacent photovoltaic panels to guide water flow towards the roof edge. The water passages are longitudinally spaced between adjacent photovoltaic panels to laterally guide water flow into the water guides. Each water passage has two ends connected to the two ends of the water guides. By adopting the above technical solution, the photovoltaic panels are regularly arranged on top of the supporting component and inclined towards the roof edge. When water flows onto the photovoltaic panels, it will naturally flow in the inclined direction under the action of gravity. The water guides, laterally spaced between adjacent photovoltaic panels, can guide the water flow towards the roof edge. The water-guiding components are longitudinally spaced between adjacent photovoltaic panels, guiding water accumulation in the transverse gaps between panels into these components. This prevents water from accumulating randomly on the panel surface. Furthermore, each component connects to two separate water-guiding components, allowing for smooth water flow and further enhancing the guiding effect. This not only effectively prevents water accumulation on the photovoltaic panel surface and roof, preventing water seepage and structural damage, but also ensures stable sunlight reception by the panels, improving solar energy utilization efficiency. Simultaneously, the coordinated arrangement of the regularly spaced photovoltaic panels with the water-guiding and water-guiding components enhances the overall integrity and stability of the waterproof photovoltaic building structure. Any malfunctioning panel can be quickly and accurately removed and replaced, significantly improving installation and maintenance convenience. Preferably, the water guiding component includes a water guiding section and a first mounting section. The water guiding section is provided with a water guiding groove, and the first mounting sections extend horizontally on both sides of the water guiding section. The first mounting sections are sealed to the photovoltaic panel. By adopting the above technical solution, the water guiding component is provided with a water guiding section and a first mounting section. The water guiding section is provided with a water guiding groove to guide water flow, and the first mounting sections extend horizontally on both sides of the water guiding section and are sealed to the photovoltaic panel. This structure forms a tight connection between the water guiding component and the photovoltaic panel, preventing water leakage from the connection between the water guiding component and the photovoltaic panel, thereby effectively guiding water flow to the edge of the roof and improving the waterproof performance of the building roof waterproof photovoltaic building structure. Preferably, the water-passing component includes a water-passing section and a second mounting section. The water-passing section is provided with a water-passing groove, and the second mounting sections extend horizontally on both sides of the water-passing section. The second mounting sections are sealed to the photovoltaic panel.By adopting the above technical solution, the water-passing part of the water-passing component is provided with a water-passing groove, and the second mounting parts extending horizontally on both sides are sealed to the photovoltaic panel. When rainwater falls on the photovoltaic panel, because the photovoltaic panel is tilted towards the roof edge, the water flow will flow along the photovoltaic panel. The sealed second mounting parts can prevent water from leaking from the connection between the water-passing component and the photovoltaic panel. The water-passing groove can collect the water flowing along the photovoltaic panel and guide it laterally into the water-passing component, thereby realizing the orderly guidance of water flow, avoiding water accumulation on the photovoltaic panel, and effectively improving the waterproof performance of the building roof waterproof photovoltaic building structure. Preferably, a flow guide is provided at the connection between the second mounting part and the water-passing part, and the flow guide and the second mounting part form an angle of less than 90°. By adopting the above technical solution, a guide section is provided at the connection between the second mounting part and the water passage part, forming an angle of less than 90° with the second mounting part. Due to the inclined arrangement of the photovoltaic panel, water flow easily flows along the photovoltaic panel to the gap between the second mounting part and the photovoltaic panel. Water also easily accumulates at the lower end of the water passage part. The guide section can guide the water flow more smoothly into the water passage part, effectively preventing water from seeping through the gap. Preferably, the water guide channel is U-shaped. By adopting the above technical solution, a photovoltaic module is installed on the top of the support component. The photovoltaic module includes photovoltaic panels arranged regularly and inclined towards the roof edge, horizontally spaced water guides, and vertically spaced water passage parts. The two ends of the water guides are connected, and the water guides are arranged in a U-shaped water guide channel, which allows water to flow smoothly along the water guide channel to the roof edge, effectively avoiding water accumulation. Preferably, the water guides are provided with water inlets corresponding to the positions of the water passage parts, and the water inlets are connected to the water guide channel and the water passage channel. By adopting the above technical solution, since the water guide component has a water inlet corresponding to the water passage component, and this water inlet is connected to the water guide channel and the water passage channel, when water flows through the water passage channel, it can smoothly flow into the water guide channel through the water inlet, realizing the effective guidance of water flow from the water passage component to the water guide component, avoiding water accumulation between photovoltaic panels, and thus better guiding the water flow to the roof edge for drainage, effectively improving the drainage performance of the building roof waterproof photovoltaic building structure. Preferably, the number of photovoltaic modules is two, and the two photovoltaic modules are symmetrically arranged. The top of the support component is provided with a triangular support structure, and the photovoltaic panel is fixed to the surface of the triangular support structure by fasteners. The two photovoltaic modules respectively cover the opposite surface of the triangular support structure. By adopting the above technical solution, since the top of the support component is provided with a triangular support structure, and the two photovoltaic modules are symmetrically arranged and respectively cover the opposite surface of the triangular support structure, and the photovoltaic panel is fixed to the surface of the triangular support structure by fasteners, this triangular support structure provides stable support for the photovoltaic modules, which can enhance the stability of the overall structure. Preferably, the tops of the two photovoltaic modules are connected by a cover plate structure.By adopting the above technical solution, two photovoltaic modules are symmetrically arranged on opposite sides of a triangular support structure on top of the supporting module. The photovoltaic panels are fixed to the surface of the triangular support structure by fasteners, and the tops of the two photovoltaic modules are connected by a cover plate structure, which can prevent gaps between the tops of the two photovoltaic modules and thus avoid water leakage. This further improves the waterproof performance of the photovoltaic building structure on the roof and enhances the overall structural integrity. Preferably, a drainage component is horizontally arranged at the bottom of the photovoltaic module, and the bottom of the water guide component is connected to the drainage component. By adopting the above technical solution, since the bottom of the photovoltaic module is horizontally arranged with a drainage component and the bottom of the water guide component is connected to the drainage component, when water flows through the water guide component, it can smoothly flow into the drainage component connected to its bottom, thereby achieving the effect of quickly draining water accumulated on the photovoltaic module. Preferably, the tilt angle of the photovoltaic panel is 15°-30°. By adopting the above technical solution, the tilt angle of the photovoltaic panel is set between 15° and 30°. Within this angle range, rainwater can flow more smoothly along the surface of the photovoltaic panel under the action of gravity, avoiding rainwater accumulation on the photovoltaic panel and reducing the possibility of rainwater seeping into the building roof, thereby improving the waterproof effect; at the same time, the photovoltaic panel can receive sunlight better, ensuring the effective conversion and utilization of solar energy.

[0005] In summary, this application includes at least one of the following beneficial technical effects: 1. The support components support regularly arranged photovoltaic panels that slope towards the roof edge. When rainwater falls on the photovoltaic panels, the slope naturally directs the water towards the roof edge. Simultaneously, horizontally spaced water guides between adjacent photovoltaic panels further guide the water flow to the roof edge, while vertically spaced water passages guide the water laterally into the guides. This coordinated action prevents water from accumulating and soaking on the roof, effectively solving the roof waterproofing problem. 2. This structure achieves good waterproofing through the connection of several photovoltaic panels, several water guide components, and several water passage components. Therefore, it is not limited by the size of existing installation frames and bonding methods. The installation layout of photovoltaic panels can be flexibly adjusted according to roofs of different shapes and sizes, enabling flexible installation and convenient disassembly of photovoltaic panels on roofs of different shapes and sizes. Attached Figure Description

[0006] Figure 1 This is a structural diagram of a waterproof photovoltaic building structure for building roofs according to this application; Figure 2 This is a side view of a waterproof photovoltaic building structure for building roofs according to this application; Figure 3 This is a structural diagram of a water guide component for a waterproof photovoltaic building structure for building roofs, as described in this application; Figure 4This is a structural diagram of a water-permeable component for a waterproof photovoltaic building structure for building roofs, as described in this application.

[0007] Explanation of reference numerals in the attached drawings: 1. Supporting component; 2. Photovoltaic module; 3. Fixing component; 4. Cover structure; 5. Roof; 11. Triangular support structure; 12. Rectangular frame structure; 21. Photovoltaic panel; 22. Water guide component; 23. Water passage component; 24. Drainage component; 221. Water guide section; 222. First mounting section; 223. Water guide channel; 224. Water inlet; 225. Extension section; 231. Water passage section; 232. Second mounting section; 233. Flow guide section; 234. Water passage channel; 241. Drainage outlet. Detailed Implementation

[0008] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0009] This application provides a waterproof photovoltaic building structure for building roofs, as described in Embodiment 1. Figure 1 and Figure 2 The system includes a support component 1, photovoltaic modules 2, fasteners 3, and a cover structure 4. Two photovoltaic modules 2 are symmetrically arranged on the top of the support component 1 via fasteners 3, and the two photovoltaic modules 2 are connected by the cover structure 4 to achieve shading. Each photovoltaic module 2 includes several photovoltaic panels 21, water guides 22, and water ducts 23. The photovoltaic panels 21, water guides 22, and water ducts 23 are arranged regularly and alternately on the top of the support component 1. The water flow is guided by the longitudinally arranged water guides 22 and the transversely arranged water ducts 23, which prevent water accumulation from damaging the roof and achieve a good waterproof effect. At the same time, the photovoltaic panels 21 can also utilize solar energy to achieve energy conservation and emission reduction.

[0010] Specifically, since the existing building roof is surrounded by existing walls, the support component 1 in this embodiment includes several steel columns, several steel beams, and several steel frames. The steel columns are vertically installed on the existing building roof, and the steel beams are horizontally installed on the top of the steel columns to form a rectangular frame structure 12. The several steel frames are used to build a triangular support structure 11 in the shape of a triangular prism. The steel frame at the bottom of the triangular support structure 11 is connected to the steel beam. The steel columns, steel beams, and steel frames are all fastened together by bolts and screws.

[0011] Specifically, two photovoltaic modules 2 are symmetrically arranged on top of the triangular support structure 11 and respectively cover the opposite sides of the triangular support structure 11. The tops of the two photovoltaic modules 2 are connected by a cover plate structure 4, which serves to waterproof and protect the structure. Each photovoltaic panel 21 is inclinedly mounted on the surface of the triangular support structure 11 by a fastener 3, which is a "Z"-shaped steel purlin. Several photovoltaic panels 21 are regularly arranged on the inclined steel frame of the triangular support structure 11, all inclined towards the top of the wall at the edge of the roof. The photovoltaic panels 21 are rectangular in structure and are fastened to the "Z"-shaped steel purlins with bolts. Specifically, in this embodiment, the two photovoltaic modules 2 completely cover the building roof and four walls. The tilt angle of the photovoltaic panel 21 is 15°-30°, and in this embodiment, 20° is preferred. This tilt angle is beneficial for the photovoltaic panel 21 to receive sunlight and improve the photoelectric conversion efficiency, and also allows water to flow smoothly to the water guide 22. The specific angle is determined according to the actual existing roof size.

[0012] Reference Figure 3 Specifically, water guides 22 are spaced laterally between adjacent photovoltaic panels 21 to guide water flow towards the roof edge. Each water guide 22 includes a water guide section 221 and a first mounting section 222. The water guide section 221 has a water guide channel 223, which is U-shaped to facilitate smooth water flow. The first mounting sections 222 extend horizontally on both sides of the water guide section 221, and extension sections 225 extend vertically on both sides. Both extension sections 225 are in close contact with the surface of the corresponding photovoltaic panel 21. The extension sections 225 are perpendicular to the first mounting sections and fit snugly against the sidewalls and bottom of the photovoltaic panel 21. The tops of the first mounting sections 222 on both sides are in close contact with the bottoms of the two adjacent photovoltaic panels 21 and connected by bolts. An elastic gasket can be provided on the top of the first mounting section 222 to achieve a sealed connection and prevent water leakage from the connection point. In particular, the water guide 22 is a long strip structure that extends diagonally upward along the edge of the roof to the top and connects with the top cover structure 4.

[0013] Reference Figure 4Specifically, in this embodiment, the water-passing components 23 are spaced apart longitudinally between two adjacent photovoltaic panels 21 to guide water flow laterally into the water-guiding components 22. Each water-passing component 23 has two ends connected to the two end water-guiding components 22. The water-passing component 23 includes a water-passing section 231 and a second mounting section 232. The water-passing section 231 is provided with a U-shaped water-passing groove 234. The second mounting sections 232 extend horizontally on both sides of the water-passing section 231. The tops of the second mounting sections 232 on both sides are tightly attached to the bottoms of the two adjacent photovoltaic panels 21 and connected by bolts. Elastic gaskets can also be provided on the tops of the second mounting sections 232 to achieve a sealed connection. In particular, an arc-shaped guide section 233 recessed towards the water-passing groove 234 is provided at the connection between the second mounting section 232 and the water-passing section 231. The guide section 233 forms an angle of less than 90° with the second mounting section 232. This design allows water to flow more smoothly from the water-passing component 23 into the water-guiding component 22.

[0014] In particular, each water guide 22 in this embodiment is provided with a water inlet 224 at the position corresponding to the water passage 23. The water inlet 224 is connected to the water guide channel 223 and the water passage channel 234 to ensure that the water can flow smoothly from the water passage 23 into the water guide 22.

[0015] Each photovoltaic module 2 has a horizontally positioned U-shaped drainage component 24 at its bottom, capable of storing water and with its opening facing upwards. The bottoms of all water guide components 22 are connected to the drainage component 24. Specifically, the drainage component 24 is provided with a drainage outlet 241, and a drainage pipe is connected below the drainage outlet 241 to discharge the collected water.

[0016] The installation steps for the waterproof photovoltaic building structure on the roof of this building are as follows: Installation of support component 1: First, fix the triangular support structure 11 with steel bolts to ensure its high stability and strength, and then install it in a suitable position on the roof.

[0017] Install photovoltaic panels 21: Use fasteners such as "Z"-shaped steel purlins 3 to regularly arrange and install several photovoltaic panels 21 on the inclined steel frame surface of the triangular support structure 11, so that the photovoltaic panels 21 are inclined towards the edge of the roof, and the inclination angle is controlled between 15° and 30°.

[0018] Install water guide 22: Install water guide 22 at intervals in the horizontal direction between two adjacent vertical rows of photovoltaic panels 21, and seal the first mounting part 222 of the water guide 22 to the photovoltaic panel 21 to ensure the sealing effect.

[0019] Install water passage components 23: Install water passage components 23 at intervals along the longitudinal direction between two adjacent photovoltaic panels 21, seal the second mounting part 232 of the water passage component 23 to the photovoltaic panel 21, and ensure that both ends of each water passage component 23 are connected to the two end water guide components 22 respectively, and the water passage port 224 set by the water guide component 22 at the position corresponding to the water passage component 23 is connected to the water guide channel 223 and the water passage channel 234.

[0020] Connecting cover structure 4: After the two photovoltaic modules 2 are installed, a cover structure 4 is installed between the tops of the two photovoltaic modules 2 to provide waterproofing and protection.

[0021] Install drainage component 24: Install drainage component 24 horizontally at the bottom of photovoltaic module 2, connect the bottom of water guide component 22 to drainage component 24 to ensure smooth drainage.

[0022] The implementation principle of this embodiment is as follows: Through a reasonable layout and design, the waterproof photovoltaic building structure on the roof uses water guides 22 and water passage components 23 to guide water accumulated on the photovoltaic panels 21 to the drainage components 24 for discharge, preventing water damage to the roof waterproofing. Simultaneously, the regularly arranged photovoltaic panels 21 effectively utilize solar energy. This structure is easy to install, requiring no custom-made large installation frames and avoiding the inconvenience of using adhesives for splicing. It facilitates disassembly, replacement, and maintenance, reducing maintenance costs. Furthermore, this structure is applicable to roofs of different shapes and sizes, exhibiting strong versatility and practicality.

[0023] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof photovoltaic building structure for building roofs, characterized in that, The system includes a support component (1) and a photovoltaic module (2) disposed on the top of the support component (1). The photovoltaic module (2) includes several photovoltaic panels (21), water guides (22) and water passages (23). The several photovoltaic panels (21) are regularly arranged on the top of the support component (1) and all tilt towards the edge of the roof. The water guides (22) are horizontally spaced between two adjacent photovoltaic panels (21) to guide water flow to the edge of the roof. The water passages (23) are vertically spaced between two adjacent photovoltaic panels (21) to guide water flow horizontally into the water guides (22). The two ends of each water guide (22) are respectively connected to the two ends of the water guides (22).

2. The waterproof photovoltaic building structure for building roofs according to claim 1, characterized in that, The water guide component (22) includes a water guide part (221) and a first mounting part (222). The water guide part (221) is provided with a water guide groove (223). The first mounting part (222) extends horizontally on both sides of the water guide part (221) and is sealed to the photovoltaic panel (21).

3. A waterproof photovoltaic building structure for building roofs according to claim 2, characterized in that, The water-conducting component (23) includes a water-conducting part (231) and a second mounting part (232). The water-conducting part (231) is provided with a water-conducting groove (234). The second mounting part (232) extends horizontally on both sides of the water-conducting part (231) and is sealed to the photovoltaic panel (21).

4. A waterproof photovoltaic building structure for building roofs according to claim 3, characterized in that, A guide section (233) is provided at the connection between the second mounting part (232) and the water passage part (231), and the guide section (233) and the second mounting part (232) form an angle of less than 90°.

5. A waterproof photovoltaic building structure for building roofs according to claim 2, characterized in that, The water guide channel (223) is U-shaped.

6. A waterproof photovoltaic building structure for building roofs according to claim 3, characterized in that, The water guide (22) is provided with a water inlet (224) at the position corresponding to the water passage (23), and the water inlet (224) is connected to the water guide channel (223) and the water passage channel (234).

7. A waterproof photovoltaic building structure for building roofs according to claim 1, characterized in that, The number of photovoltaic modules (2) is two, and the two photovoltaic modules (2) are symmetrically arranged. The top of the support component (1) is provided with a triangular support structure (11). The photovoltaic panel (21) is set on the surface of the triangular support structure (11) by a fastener (3). The two photovoltaic modules (2) respectively cover the opposite side of the triangular support structure (11).

8. A waterproof photovoltaic building structure for building roofs according to claim 7, characterized in that, The tops of the two photovoltaic modules (2) are connected by a cover plate structure (4).

9. A waterproof photovoltaic building structure for building roofs according to claim 1, characterized in that, The photovoltaic module (2) has a drainage component (24) horizontally arranged at the bottom, and the bottom of the water guide (22) is connected to the drainage component (24).

10. A waterproof photovoltaic building structure for building roofs according to claim 1, characterized in that, The tilt angle of the photovoltaic panel (21) is 15°-30°.

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