Waterproof structure of photovoltaic module

Abstract

The invention provides a waterproof structure of a photovoltaic module. The waterproof structure comprises a guide rail, a waterproof cover plate and a fastener, the guide rail is arranged along the long side of the photovoltaic module in a full-length mode and used for fixing the photovoltaic module from a high position to a low position according to a tile stacking mode, and water flows to the water guide strip from the upper surface of the photovoltaic module located at the high position of the relative slope and then flows to the upper surface of the photovoltaic module located at the low position of the relative slope from the water guide strip; a waterproof cover plate is arranged at an abutted seam between two adjacent rows of photovoltaic modules from a high position to a low position fixed by the guide rail, and the waterproof cover plate is fixed on the photovoltaic modules through fasteners. The invention provides a more advanced and efficient photovoltaic module waterproof structure, which not only improves the waterproof performance of the system, but also realizes material saving, cost reduction, simple and convenient installation and better adaptability through optimal design, and provides powerful support for sustainable development of the photovoltaic industry.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic equipment, and in particular to a waterproof structure of a photovoltaic module. Background Art

[0002] In photovoltaic systems, in order to ensure the normal operation of photovoltaic modules under various weather conditions, especially the waterproof performance in the face of rainfall, it is usually necessary to design a special structure to prevent water from penetrating or accumulating. The traditional photovoltaic module waterproofing and drainage solution mainly relies on the gutter system, that is, through a specific structure to guide rainwater away from the surface of the photovoltaic panel to avoid water accumulation and leakage. The existing solutions on the market mainly include two types of gutter systems: Four-level water tank drainage solution: This solution is suitable for photovoltaic modules arranged in horizontal rows, but its disadvantage is that it cannot achieve good adaptability to purlins with different cross-section specifications, and the complexity of multi-level water tanks increases the difficulty and risk of construction. In addition, this solution uses a large amount of steel, is costly, and is limited by the specifications of the pressure plate, so it has poor flexibility.

[0003] M-sink drainage solution: This solution also has the problem of large steel consumption, and its cross-sectional shape is complex, making it difficult to adapt to a variety of installation scenarios. There are only two specifications of M-sinks on the market. For vertically arranged photovoltaic modules, the smaller time interval leads to increased material consumption, and the stability of self-tapping screws is also problematic.

[0004] Both of these traditional solutions are drainage-oriented designs, focusing on how to effectively drain the moisture that has accumulated on the surface of the photovoltaic panels rather than preventing moisture from entering the system.

[0005] The existing photovoltaic module waterproofing and drainage solutions have the following shortcomings: 1. High cost: Both the four-stage water tank and the M-water tank solution involve the use of a large amount of steel, which not only increases the cost of raw materials, but also increases the construction cost due to the complexity of the structure.

[0006] 2. Complex structure: The design of multi-stage water tank makes the installation and maintenance of the entire system more complicated, increasing the operational difficulty and technical requirements.

[0007] 3. Poor adaptability: The traditional water tank system has poor adaptability to purlins of different specifications, especially when faced with purlins of various cross-section specifications, the adjustment space is limited.

[0008] 4. Unstable fixing effect: If the M sink is fixed with self-tapping screws, it may become loose during long-term use, affecting the stability and safety of the system.

[0009] 5. Single functionality: The current solution focuses on drainage function and lacks effective waterproofing measures. It cannot completely prevent moisture from entering the system, which may lead to potential leakage problems.

[0010] Therefore, the prior art has deficiencies and needs further improvement. Summary of the invention

[0011] In view of the problems existing in the prior art, the present invention provides a waterproof structure of a photovoltaic module.

[0012] To achieve the above object, the specific scheme of the present invention is as follows: The present invention provides a waterproof structure of a photovoltaic module, comprising: Guide rails, waterproof covers and fasteners; The guide rail comprises: an upper wing plate, a lower wing plate, a water guide strip, an outer support, an inner support, a left fixed edge, a right fixed edge, an upper support plate, and a lower support plate; The upper support plate and the lower support plate are arranged in the horizontal direction, the lower support plate is arranged below the upper support plate, the left fixed edge and the right fixed edge are arranged vertically on the lower side of the lower support plate, and the outer support and the inner support are arranged vertically between the upper support plate and the lower support plate; The left fixing edge and the right fixing edge are used to install the guide rail on the purlin; The lower wing plate is arranged on the left side of the lower support plate; The left side and the right side of the upper support plate are respectively provided with a water guide strip and an upper wing plate; The upper side of the upper wing plate is used to place the long side of the photovoltaic module located at a relatively high slope; The upper side of the lower wing plate is used to place the long side of the photovoltaic module located at a relatively low slope; The guide rail is arranged along the long side of the photovoltaic module, and is used to fix the photovoltaic module from high to low in a tile stacking manner, and water flows from the upper surface of the photovoltaic module located at a relatively high slope to the water guide bar, and then flows from the water guide bar to the upper surface of the photovoltaic module located at a relatively low slope; A waterproof cover plate is arranged at the joint between two adjacent rows of photovoltaic components from the upper position to the lower position where the guide rail is fixed, and the waterproof cover plate is fixed on the photovoltaic components by fasteners.

[0013] Furthermore, the water guide bar is provided with a limiting protrusion or a fixed angle steel to prevent the photovoltaic components located at a relatively high slope from sliding downward.

[0014] Furthermore, a waterproof sealant is provided between the lower side of the water guide strip and the photovoltaic module; Rainwater flows along the upper edge of the water guide strip to the upper surface of the photovoltaic module at a relatively low slope, in a progressive layered manner.

[0015] Furthermore, the lower sides of the lower wing plate and the upper wing plate are both provided with serrations.

[0016] Furthermore, the guide rail also includes a clamp, which is C-shaped and includes an upper side and a lower side, and a sawtooth pattern is provided on the upper side of the lower side; The upper wing plate and the lower wing plate are both provided with clamps; The upper side of the clamp is used to press the long frame of the photovoltaic module, and the lower side of the clamp is engaged with the serrated patterns on the lower sides of the upper wing plate and the lower wing plate through the serrated patterns to form a clamping fixation.

[0017] Furthermore, a support plate is provided below the waterproof cover plate, and the fasteners include bolts; One end of the bolt is installed on the lower side of the waterproof cover plate; The other end of the bolt passes through the support plate and is fixed by a nut; The waterproof cover plate is arranged above the joint between the two photovoltaic modules, and the two sides of the waterproof cover plate are respectively overlapped on the upper surfaces of the photovoltaic modules on the left and right sides; The support plate is arranged below the joint between the two photovoltaic modules, and the two sides of the waterproof cover plate are respectively overlapped on the lower surfaces of the photovoltaic modules on the left and right sides; The waterproof cover plate and the support plate are respectively located above and below the photovoltaic module. The bolts pass through the joint between two adjacent photovoltaic modules to fix the waterproof cover plate and the support plate on the upper and lower sides of the photovoltaic module. The waterproof cover plate is used to prevent rainwater from leaking from the joint between two adjacent photovoltaic modules.

[0018] Furthermore, the waterproof cover plate is arc-shaped, and the middle is higher than the two sides.

[0019] Furthermore, an L-shaped left card plate and a right card plate are provided on the lower side of the waterproof cover plate; The left card plate and the right card plate are arranged opposite to each other; The head of the bolt is detachably clamped between the left clamping plate and the right clamping plate.

[0020] Furthermore, the cross section of the support plate is a concave-shaped structure; The width of the support plate is greater than the span of the waterproof cover plate.

[0021] Furthermore, the lower end of the screw rod of the bolt is provided with a thread to cooperate with a nut.

[0022] The technical solution of the present invention has the following beneficial effects: 1. Improve waterproof performance: Limiting protrusions or fixed angle steels are provided on the water guide bars to effectively prevent photovoltaic modules located at relatively high slopes from sliding downward.

[0023] A waterproof sealant is provided between the lower side of the water guide bar and the photovoltaic module to ensure that rainwater does not leak into the module when flowing along the water guide bar.

[0024] The design of the waterproof cover, especially its curved structure and the feature that the middle part is higher than the two sides, as well as the use of the support plate below, further enhance the waterproof protection of the joints.

[0025] 2. Optimize material utilization and reduce costs: By simplifying the structural design, the amount of steel used is reduced and the cost of raw materials is lowered.

[0026] The simplified installation process reduces construction time and labor costs, improving economic benefits.

[0027] 3. Enhance fixation stability: The upper and lower wing panels are provided with serrations on their undersides, and engage with the C-shaped clamps to form a stable clamping mechanism, ensuring that the photovoltaic modules remain stable under various environmental conditions.

[0028] The use of fasteners such as bolts, support plates, and L-shaped left and right clamps provides a reliable mechanical connection and avoids the instability of traditional self-tapping screw fixation.

[0029] 4. Improve adaptability and flexibility: The design of the left and right fixed edges allows the guide rail to be flexibly installed on purlins of different specifications, increasing the adaptability of the system.

[0030] The new structure can adapt to both horizontal and vertical arrangements, is not restricted by the specifications of the pressure plates, and is suitable for more types of photovoltaic projects.

[0031] 5. Improve construction convenience: The joint processing between components is simple and direct, which reduces the complex multi-level sink structure and facilitates quick installation and maintenance.

[0032] All parts are of standardized design, easy to purchase and replace, reducing the difficulty of subsequent maintenance.

[0033] 6. Promote natural drainage and reduce the risk of water accumulation: The design follows the principle of natural drainage, allowing water to flow smoothly from high to low, in a progressive manner, avoiding water accumulation and thus reducing corrosion and other damage caused by long-term water accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a three-dimensional diagram of the guide rail of the present invention; Figure 2 is a three-dimensional diagram of the clamp of the present invention; Figure 3is a three-dimensional diagram of the fixed angle steel of the present invention; Figure 4 It is a partial enlarged schematic diagram of the guide rail installation of the photovoltaic module on the purlin of the present invention; Figure 5 It is a schematic diagram of the guide rail installation of photovoltaic modules on purlins of the present invention; Figure 6 is a three-dimensional diagram of the waterproof cover plate and fastener combination of the present invention; Figure 7 is an exploded view of the waterproof cover plate and the fastener of the present invention; Figure 8 is a top view of a support plate of the present invention; Fig. 9 It is a schematic diagram of the installation of the waterproof cover plate and the fastener of the present invention; Fig.10 It is a four-level sink drainage solution layout Figure 1 ; Fig.11 It is a four-level sink drainage solution layout Figure 2 ; Fig.12 It is a four-level sink drainage solution layout Figure 3 ; Fig.13 It is a four-level sink drainage solution layout Figure 4 ; Fig.14 It is a four-level sink drainage solution layout Figure 5 ; Fig.15 It is a four-level sink drainage solution layout Figure 6 ; Fig.16 It is a four-level sink drainage solution layout Figure 7 ; Fig.17 It is a four-level sink drainage solution layout Figure 8 ; Fig.18 M sink drainage solution layout Figure 1 ; Fig.19 M sink drainage solution layout Figure 2 .

[0035] In the figure: 1. Upper wing plate; 2. Lower wing plate; 3. Water guide strip; 4. External support; 5. Internal support; 6. Left fixed edge; 7. Right fixed edge; 8. Upper support plate; 9. Lower support plate; 10. Purlin; 11. Fixed angle steel; 12. Clamp; 13. Upper edge; 14. Lower edge; 15. Waterproof cover plate; 16. Support plate; 17. Bolt; 18. Left clamp; 19. Right clamp; 20. Head; 21. Screw; 22. Thread. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; it can be understood that the specific embodiments described herein are only used to explain the present invention rather than to limit the present invention; it should also be noted that, for ease of description, only the parts related to the present invention rather than all are shown in the accompanying drawings.

[0037] Combination Figure 1-Figure 9 As shown, the present invention provides a waterproof structure of a photovoltaic module, including: a guide rail, a waterproof cover plate 15 and fasteners; The guide rail includes: an upper wing plate 1, a lower wing plate 2, a water guide bar 3, an outer support 4, an inner support 5, a left fixed edge 6, a right fixed edge 7, an upper support plate 8, and a lower support plate 9; The upper support plate 8 and the lower support plate 9 are arranged in the horizontal direction, the lower support plate 9 is arranged below the upper support plate 8, the left fixed edge 6 and the right fixed edge 7 are arranged vertically on the lower side of the lower support plate 9, and the outer support 4 and the inner support 5 are arranged vertically between the upper support plate 8 and the lower support plate 9; The left fixing edge 6 and the right fixing edge 7 are used to install the guide rail on the purlin 10; The lower wing plate 2 is arranged on the left side of the lower support plate 9; The left and right sides of the upper support plate 8 are respectively provided with a water guide bar 3 and an upper wing plate 1; The upper side of the upper wing plate 1 is used to place the long side of the photovoltaic module located at a relatively high slope; The upper side of the lower wing plate 2 is used to place the long side of the photovoltaic module located at a relatively low slope; The guide rail is arranged along the long side of the photovoltaic module, and is used to fix the photovoltaic module from high to low in a tile stacking manner, and water flows from the upper surface of the photovoltaic module located at a relatively high slope to the water guide bar 3, and then flows from the water guide bar 3 to the upper surface of the photovoltaic module located at a relatively low slope; A waterproof cover plate 15 is provided at the joint between two adjacent rows of photovoltaic modules from the upper position to the lower position where the guide rail is fixed, and the waterproof cover plate 15 is fixed on the photovoltaic modules by fasteners.

[0038] The water guide bar 3 is provided with a limiting protrusion or a fixed angle steel 11 to prevent the photovoltaic components located at a relatively high slope from sliding downward.

[0039] A waterproof sealant is also provided between the lower side of the water guide bar 3 and the photovoltaic module; The rainwater flows along the upper edge 13 of the water guide strip 3 to the upper surface of the photovoltaic module at a relatively low slope, in a progressive manner.

[0040] The lower sides of the lower wing plate 2 and the upper wing plate 1 are both provided with serrations.

[0041] The guide rail further includes a clamp 12, which is C-shaped and includes an upper side 13 and a lower side 14, and a sawtooth pattern is provided on the upper side of the lower side 14; The upper wing plate 1 and the lower wing plate 2 are both provided with a clamp 12; The upper side 13 of the clamp 12 is used to press the long frame of the photovoltaic module, and the lower side 14 of the clamp 12 is engaged with the serrations on the lower sides of the upper wing plate 1 and the lower wing plate 2 through the serrations to form a clamping fixation.

[0042] A support plate 16 is further provided below the waterproof cover plate 15, and the fasteners include bolts 17; One end of the bolt 17 is installed on the lower side of the waterproof cover plate 15; The other end of the bolt 17 passes through the support plate 16 and is fixed by a nut; The waterproof cover plate 15 is arranged above the joint between the two photovoltaic modules, and the two sides of the waterproof cover plate 15 are respectively overlapped on the upper surfaces of the photovoltaic modules on the left and right sides; The support plate 16 is arranged below the joint between the two photovoltaic modules, and the two sides of the waterproof cover plate 15 are respectively overlapped on the lower surfaces of the photovoltaic modules on the left and right sides; The waterproof cover plate 15 and the support plate 16 are respectively located above and below the photovoltaic module. The bolts 17 pass through the joint between two adjacent photovoltaic modules to fix the waterproof cover plate 15 and the support plate 16 on the upper and lower sides of the photovoltaic module. The waterproof cover plate 15 is used to prevent rainwater from leaking from the joint between two adjacent photovoltaic modules.

[0043] The waterproof cover plate 15 is arc-shaped, and the middle is higher than the two sides.

[0044] The lower side of the waterproof cover plate 15 is provided with an L-shaped left card plate 18 and a right card plate 19; The left card plate 18 and the right card plate 19 are arranged opposite to each other; The head 20 of the bolt 17 is detachably clamped between the left clamping plate 18 and the right clamping plate 19 .

[0045] The cross section of the support plate 16 is a concave structure; The width of the support plate 16 is greater than the span of the waterproof cover plate 15 .

[0046] The lower end of the screw rod 21 of the bolt 17 is provided with a thread 22 which cooperates with a nut.

[0047] Figure 10-Figure 17 It is a layout diagram of the four-level sink drainage plan; Figure 18-19 This is the layout diagram of the M sink drainage plan.

[0048] Working principle of the present invention: The photovoltaic module waterproof structure proposed in the present invention aims to achieve efficient natural drainage and reliable waterproof performance through a series of carefully designed components, such as guide rails, waterproof cover plates 15 and fasteners. The following is a detailed description of its working principle: 1. Working principle of the guide rail system Installation and fixing: The guide rail is vertically arranged on the lower side of the lower support plate 9 through the left fixing edge 6 and the right fixing edge 7, and is firmly connected to the purlin 10 below using self-tapping screws and other fastening measures. This ensures the stability of the entire system and can withstand the pressure from the photovoltaic modules above.

[0049] Component support and positioning: The upper wing plate 1 is placed on the long side of the photovoltaic module located at a relatively high slope (hereinafter referred to as "high place"); The lower wing plate 2 is placed on the long side of the photovoltaic module located at a relatively low slope (hereinafter referred to as the "low point").

[0050] The upper wing plate 1 and the lower wing plate 2 are both provided with serrations, which cooperate with the C-shaped clamp 12 to form a clamping and fixing mechanism to ensure that the photovoltaic module will not loosen or shift due to external force.

[0051] Natural drainage path: The water guide bar 3 is located on the left side of the upper support plate 8 and serves as a limiting measure for the photovoltaic components at high places; Rainwater on the photovoltaic modules at a high position flows along the panel surface to the water guide strip 3, and then is guided to the panel surface of the photovoltaic modules at a low position through the water guide strip 3, and finally discharged step by step.

[0052] The left side of the water guide strip 3 is sealed with waterproof glue to prevent water leakage.

[0053] 2. Function of waterproof cover 15 Seam waterproofing: A waterproof cover plate 15 is provided at the seams between two adjacent rows of photovoltaic modules. The cover plate is arranged throughout the length of the seams and covers the seams. The waterproof cover plate 15 is designed in an arc shape, with the middle higher than the two sides, which helps to guide water to drain outward and avoid water accumulation.

[0054] Double protection: A support plate 16 is provided under the waterproof cover plate 15, and the two are located above and below the photovoltaic module respectively. The waterproof cover plate 15 and the support plate 16 are tightly connected together by passing bolts 17 through the joints and fixing them with nuts, ensuring good sealing even under strong wind or vibration conditions.

[0055] Special structure: The lower side of the waterproof cover plate 15 is equipped with L-shaped left and right clamp plates 18 and 19 for fixing the head 20 of the bolt 17; the support plate 16 adopts a concave structure with a width greater than the span of the waterproof cover plate 15, which further enhances the stability and waterproof effect of the overall structure.

[0056] 3. Auxiliary fixing function of the clamp 12 Enhanced fixation: The clamp 12 is C-shaped, including an upper side 13 and a lower side 14, wherein the upper side of the lower side 14 is provided with serrations, which engage with the serrations on the lower sides of the upper wing plate 1 and the lower wing plate 2 to form a strong clamping fixation to prevent the photovoltaic module from sliding or falling off.

[0057] 4. Overall collaborative work All of the above components work together to form a complete waterproof system, which not only effectively guides rainwater from high places to low places, but also provides additional protection measures at various key nodes, such as the application of waterproof sealant, the design of waterproof cover 15 and a sturdy fixing mechanism, thereby ensuring the long-term reliable operation of the entire photovoltaic system.

[0058] In summary, the present invention achieves the goal of combining natural drainage with waterproofing by optimizing the functions and layout of various components, and significantly improves the stability and safety of photovoltaic modules under severe weather conditions.

[0059] The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the protection scope of the present invention.

Claims

1. A waterproof structure of a photovoltaic module, characterized in that: include: Guide rails, waterproof covers and fasteners; The guide rail comprises: an upper wing plate, a lower wing plate, a water guide strip, an outer support, an inner support, a left fixed edge, a right fixed edge, an upper support plate, and a lower support plate; The upper support plate and the lower support plate are arranged in the horizontal direction, the lower support plate is arranged below the upper support plate, the left fixed edge and the right fixed edge are arranged vertically on the lower side of the lower support plate, and the outer support and the inner support are arranged vertically between the upper support plate and the lower support plate; The left fixing edge and the right fixing edge are used to install the guide rail on the purlin; The lower wing plate is arranged on the left side of the lower support plate; The left side and the right side of the upper support plate are respectively provided with a water guide strip and an upper wing plate; The upper side of the upper wing plate is used to place the long side of the photovoltaic module located at a relatively high slope; The upper side of the lower wing plate is used to place the long side of the photovoltaic module located at a relatively low slope; The guide rail is arranged along the long side of the photovoltaic module, and is used to fix the photovoltaic module from high to low in a tile stacking manner, and water flows from the upper surface of the photovoltaic module located at a relatively high slope to the water guide bar, and then flows from the water guide bar to the upper surface of the photovoltaic module located at a relatively low slope; A waterproof cover plate is arranged at the joint between two adjacent rows of photovoltaic components from the upper position to the lower position where the guide rail is fixed, and the waterproof cover plate is fixed on the photovoltaic components by fasteners.

2. The waterproof structure of a photovoltaic module according to claim 1, characterized in that: The water guide bar is provided with a limiting protrusion or a fixed angle steel to prevent the photovoltaic components located at a relatively high slope from sliding downward.

3. The waterproof structure of a photovoltaic module according to claim 1, characterized in that: A waterproof sealant is also provided between the lower side of the water guide strip and the photovoltaic module; Rainwater flows along the upper edge of the water guide strip to the upper surface of the photovoltaic module at a relatively low slope, in a progressive layered manner.

4. The waterproof structure of a photovoltaic module according to claim 1, characterized in that: The lower sides of the lower wing plate and the upper wing plate are both provided with serrations.

5. The waterproof structure of a photovoltaic module according to claim 4, characterized in that: The guide rail also includes a clamp, which is C-shaped and includes an upper side and a lower side, and a sawtooth pattern is provided on the upper side of the lower side; The upper wing plate and the lower wing plate are both provided with clamps; The upper side of the clamp is used to press the long frame of the photovoltaic module, and the lower side of the clamp is engaged with the serrated patterns on the lower sides of the upper wing plate and the lower wing plate through the serrated patterns to form a clamping fixation.

6. The waterproof structure of a photovoltaic module according to claim 1, characterized in that: A support plate is also provided below the waterproof cover plate, and the fasteners include bolts; One end of the bolt is installed on the lower side of the waterproof cover plate; The other end of the bolt passes through the support plate and is fixed by a nut; The waterproof cover plate is arranged above the joint between the two photovoltaic modules, and the two sides of the waterproof cover plate are respectively overlapped on the upper surfaces of the photovoltaic modules on the left and right sides; The support plate is arranged below the joint between the two photovoltaic modules, and the two sides of the waterproof cover plate are respectively overlapped on the lower surfaces of the photovoltaic modules on the left and right sides; The waterproof cover plate and the support plate are respectively located above and below the photovoltaic module. The bolts pass through the joint between two adjacent photovoltaic modules to fix the waterproof cover plate and the support plate on the upper and lower sides of the photovoltaic module. The waterproof cover plate is used to prevent rainwater from leaking from the joint between two adjacent photovoltaic modules.

7. The waterproof structure of a photovoltaic module according to claim 6, characterized in that: The waterproof cover plate is arc-shaped, and the middle is higher than the two sides.

8. The waterproof structure of a photovoltaic module according to claim 6, characterized in that: The lower side of the waterproof cover plate is provided with an L-shaped left card plate and a right card plate; The left card plate and the right card plate are arranged opposite to each other; The head of the bolt is detachably clamped between the left clamping plate and the right clamping plate.

9. The waterproof structure of a photovoltaic module according to claim 6, characterized in that: The cross section of the support plate is a concave structure; The width of the support plate is greater than the span of the waterproof cover plate.

10. The waterproof structure of a photovoltaic module according to claim 6, characterized in that: The lower end of the screw rod of the bolt is provided with a thread to cooperate with a nut.

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