A waterproof medium-voltage assembly for a photovoltaic panel and a photovoltaic panel
By combining the medium-pressure block and the water guide plate, the waterproofing problem of the sloping roof photovoltaic system is solved, the construction cost of the photovoltaic power station is reduced, the waterproofing effect and system stability are improved, and the service life of the photovoltaic panels is extended.
Patent Information
- Application Number
- CN202521886512.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-02
AI Technical Summary
Waterproofing issues in sloping roof photovoltaic systems lead to damage to photovoltaic modules and shortened lifespan. Existing water channel designs are costly and prone to failure, affecting system stability and reliability.
The system adopts a combination structure of medium pressure block and water guide plate. The medium pressure block is fixed to the bracket through the connecting part, the cover part overlaps on the photovoltaic module, the water guide plate covers the surface of the medium pressure block, and the connection tightness is enhanced by internal hexagonal fixing bolts. The water guide plate guides rainwater to flow out, reducing the use of water guide channels.
It effectively prevents rainwater from seeping into the gaps of photovoltaic modules, reduces the construction cost of photovoltaic power stations, improves waterproof performance and market competitiveness, extends the service life of photovoltaic panels, and enhances the reliability and safety of photovoltaic panels.
Smart Images

Figure CN224679007U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic panel technology, and more specifically, to a waterproof medium-voltage component for photovoltaic panels and a photovoltaic panel. Background Technology
[0002] As companies expand the application of gable roof photovoltaic (PV) systems, gable roof installation has become the mainstream in the market. This installation method has led to the increasingly widespread application of gable roof PV systems, which is of great significance in terms of energy supply and environmental protection. It not only effectively utilizes space for solar power generation but also adapts to different architectural styles and terrain conditions, providing strong support for sustainable energy development. More and more buildings are adopting gable roof PV systems to meet their electricity needs and achieve energy conservation and emission reduction goals.
[0003] However, the waterproofing of sloping roof photovoltaic systems has always been one of the key factors restricting their development. Poor waterproofing can lead to problems such as damage to photovoltaic modules and shortened service life, affecting the stability and reliability of the entire system.
[0004] To address the waterproofing issue of sloping roof supports, existing technologies typically involve adding water channels to the photovoltaic panels. These channels can guide rainwater flow to some extent, preventing rainwater from directly penetrating beneath the photovoltaic modules.
[0005] However, adding a water channel significantly increases the construction cost of the power station, leading to a decrease in market competitiveness. Furthermore, conventional water channels need to consider factors such as drainage depth; improper design can easily cause water to overflow, leading to waterproofing system failure and affecting the normal operation and lifespan of the photovoltaic power station.
[0006] In conclusion, how to avoid water leakage problems in the operation and maintenance of photovoltaic power plants while reducing the construction cost of photovoltaic power plants is an urgent problem to be solved by those skilled in the art. Utility Model Content
[0007] In view of this, the purpose of this utility model is to provide a waterproof medium-voltage component and photovoltaic panel for photovoltaic panels, which effectively avoids water leakage problems in the operation and maintenance of photovoltaic power stations, reduces the construction cost of photovoltaic power stations, and solves the problem of waterproofing of on-site supports.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A waterproof medium-voltage module for photovoltaic panels, comprising:
[0010] The medium-pressure block has a connecting part and a covering part. The connecting part is fixedly connected to the bracket of the photovoltaic panel and is located in the gap between adjacent photovoltaic modules. The covering part overlaps on two adjacent photovoltaic modules respectively.
[0011] A water guide plate is fixedly installed on the intermediate pressure block, and the surface of the water guide plate covers the entire surface of the intermediate pressure block.
[0012] Preferably, a fastener is provided between the intermediate pressure block and the bracket to press the cover portion against two adjacent photovoltaic modules.
[0013] Preferably, the fastener includes an internal hexagonal bolt, which is threaded between the intermediate pressure block and the bracket.
[0014] Preferably, the connecting portion includes a U-shaped block disposed in the gap between adjacent photovoltaic modules, and the covering portion includes overlapping blocks disposed at both ends of the U-shaped block and extending toward the photovoltaic modules.
[0015] Preferably, the mounting block is inclined on the side closest to the photovoltaic module, and the end of the mounting block at least away from the U-shaped block is attached to the surface of the photovoltaic module.
[0016] Preferably, the surface of the mounting block near the photovoltaic module has a serrated structure.
[0017] Preferably, the water guide plate is an elastic element and is snapped onto the intermediate pressure block.
[0018] Preferably, the water guide plate includes a water guiding part located within the U-shaped block and a snap-fit part that engages with the block.
[0019] Preferably, the snap-fit portion includes a snap piece that fits against the upper surface of the snap block and an inner flange that snaps onto the side of the snap block away from the U-shaped block.
[0020] A photovoltaic panel includes a plurality of interconnected photovoltaic modules, characterized in that a waterproof medium-pressure module for the photovoltaic panel is provided at the gap between adjacent photovoltaic modules.
[0021] The waterproof medium-pressure module for photovoltaic panels provided by this utility model is fixed to the gap between adjacent photovoltaic modules by the medium-pressure block connecting part and the bracket, and the cover part overlaps on the adjacent photovoltaic modules, which can play a role in fixing the waterproof medium-pressure module; the water guide plate is fixed on the medium-pressure block and its surface covers the entire medium-pressure block, which can directly prevent rainwater from flowing down from the gap of the photovoltaic panel, achieving a good drainage effect, so that the water flows down from the surface of the photovoltaic module, reducing the use of water guide channels and reducing the construction cost of photovoltaic power stations.
[0022] The further solutions provided in this application can also achieve the following beneficial technical effects:
[0023] By utilizing the effective connection between the inward-turned edge and the mounting block, rainwater is prevented from flowing into the gaps of the photovoltaic module, thus achieving a waterproof effect. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the waterproof medium-pressure component structure in this embodiment;
[0026] Figure 2 This is a schematic diagram of the structure of the pressure block in this embodiment;
[0027] Figure 3 This is a schematic diagram of the internal hexagonal fixing bolt in this embodiment;
[0028] Figure 4 This is a schematic diagram of the water guide plate in this embodiment.
[0029] Figures 1-4 In the accompanying drawings, the reference numerals include:
[0030] 1. Photovoltaic modules; 2. Water guide plate; 3. Medium pressure block; 4. Hex socket head cap screws;
[0031] 21. Overlapping; 22. Inward folding;
[0032] 31. U-shaped block; 32. Stacking block. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship can also change accordingly. This application discloses a waterproof medium-voltage module for photovoltaic panels and a photovoltaic panel.
[0035] The core of this utility model is to provide a waterproof medium-voltage component for photovoltaic panels and a photovoltaic panel.
[0036] Please refer to Figure 1 .
[0037] The waterproof medium-pressure component for photovoltaic panels provided by this utility model includes a medium-pressure block 3 and a water guide plate 2. The medium-pressure block 3 has a connecting part and a covering part. The connecting part is fixedly connected to the bracket of the photovoltaic panel and is located in the gap between adjacent photovoltaic modules 1. The covering part overlaps on two adjacent photovoltaic modules 1 respectively. The water guide plate 2 is fixedly installed on the medium-pressure block 3, and the surface of the water guide plate 2 covers the entire surface of the medium-pressure block.
[0038] Specifically, the intermediate pressure block 3 is inserted into the gap between adjacent photovoltaic modules 1 and extends along the length of the photovoltaic module to completely cover the entire gap. An installation space is formed on the intermediate pressure block 3, and a water guide plate 2 is set in the installation space and completely covers the entire surface of the intermediate pressure block. The upper surface of the water guide plate 2 is formed with a water flow channel for guiding water flow and is arranged along the gap. The intermediate pressure block 3 also forms a fixing space for fixing the connecting part to the photovoltaic panel bracket. At the same time, the cover part overlaps on the adjacent photovoltaic modules 1 on both sides, effectively preventing water from flowing into the gap along the connection between the intermediate pressure block 3 and the photovoltaic module 1.
[0039] The aforementioned waterproof medium-pressure photovoltaic module is fixed to the bracket at the gap between adjacent photovoltaic modules 1 via the connecting part of the medium-pressure block 3. The cover part overlaps on the adjacent photovoltaic module 1, which can fix the waterproof medium-pressure module. The water guide plate 2 is fixed on the medium-pressure block 3 and its surface covers the entire medium-pressure block 3, which can directly prevent rainwater from flowing down from the gap of the photovoltaic panel, achieving a good drainage effect. This allows water to flow down from the surface of the photovoltaic module, reducing the use of water guide channels and lowering the construction cost of the photovoltaic power station.
[0040] The waterproof medium-voltage photovoltaic module and photovoltaic panel provided by this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.
[0041] In one specific implementation, reference is made to... Figures 1 to 3 Fasteners are provided between the medium pressure block 3 and the bracket to press the cover part tightly onto the two adjacent photovoltaic modules 1.
[0042] Furthermore, the fasteners include hexagon socket head cap screws 4, which are threadedly connected between the intermediate pressure block 3 and the bracket.
[0043] Specifically, fasteners are installed between the intermediate pressure block 3 and the bracket to press the cover onto the two adjacent photovoltaic modules 1. The fasteners include hexagonal socket head cap screws 4, which are threadedly connected between the intermediate pressure block 3 and the bracket. The hexagonal socket head cap screws 4 are characterized by their hexagonal head shape, a design that facilitates installation and removal using an Allen wrench. The hexagonal socket head cap screws can be made of carbon steel, which offers high strength and ensures connection stability. Stainless steel can also be used as an alternative. The hexagonal socket head cap screws 4 are connected to the intermediate pressure block 3 and the bracket via threads. When the screws are tightened, the cover of the intermediate pressure block presses firmly against the photovoltaic modules, thereby enhancing the sealing effect.
[0044] like Figure 1 As shown, the space between the inner wall of the intermediate pressure block 3 and the water guide plate 2 is a fixed space for installing the internal hexagonal fixing bolts 4.
[0045] Optionally, the connecting part includes a U-shaped block 31 disposed in the gap between adjacent photovoltaic modules 1, and the covering part includes a jacking block 32 disposed at both ends of the U-shaped block 31 and extending toward the photovoltaic module 1.
[0046] Specifically, the intermediate pressure block 3 has a connecting part and a covering part. The connecting part includes a U-shaped block 31 disposed in the gap between adjacent photovoltaic modules 1. The U-shaped block 31 is characterized by its U-shaped structure, which can be well locked in the gap between adjacent photovoltaic modules 1, serving a positioning and connecting function. The U-shaped block 31 can be made of stainless steel, which has the characteristics of corrosion resistance and high strength, ensuring long-term use without damage. Of course, other metal materials such as aluminum alloy can also be used as alternatives. The covering part includes overlapping blocks 32 respectively disposed at both ends of the U-shaped block 31 and extending towards the photovoltaic module 1. The function of the overlapping blocks 32 is to overlap the photovoltaic module 1 for further fixation and sealing.
[0047] Furthermore, the mounting block 32 is inclined on the side closest to the photovoltaic module 1, and the end of the mounting block 32 at least away from the U-shaped block 31 is attached to the surface of the photovoltaic module 1.
[0048] Specifically, the mounting block 32 is inclined on the side closest to the photovoltaic module 1, and at least the end away from the U-shaped block is attached to the surface 1 of the photovoltaic module. In this application, the end is attached, but in other embodiments, it can be fully attached. This design makes the contact between the mounting block 32 and the photovoltaic module 1 tighter, enhancing the sealing effect. At the same time, during the process of fixing the U-shaped block 31 to the bracket, the connection between the mounting block 32 and the U-shaped block 31 may deform. If only the end is attached to the surface of the photovoltaic module 1, it can be ensured that the included angle between the mounting block 32 and the photovoltaic module 1 absorbs the deformation and prevents the mounting block 32 from lifting up.
[0049] Optionally, the surface of the mounting block 32 near the photovoltaic module 1 is formed with a serrated structure.
[0050] Specifically, the surface of the mounting block 32 near the photovoltaic module 1 can also have a serrated structure. This structure can increase friction, allowing the mounting block 32 to be better fixed on the photovoltaic module 1 and preventing slippage.
[0051] It should be noted that the interlocking blocks can be made of plastic, which is lightweight, inexpensive, and has a certain degree of flexibility. Rubber can also be used as an alternative, as it offers better sealing performance. The U-shaped blocks and interlocking blocks are molded as a single piece, ensuring the integrity and stability of the central pressure block.
[0052] Based on any of the above embodiments, refer to Figure 1 and Figure 4 The water guide plate 2 is an elastic element and is snapped onto the intermediate pressure block 3.
[0053] Furthermore, the water guide plate 2 includes a water guide portion located within the U-shaped block 31 and a snap-fit portion that engages with the mounting block 32.
[0054] Specifically, the water guide plate 2 includes a water guiding section located within the U-shaped block 31 and a snap-fit section that engages with the connecting block 32. The water guiding section is characterized by its depth and width, capable of holding a certain amount of rainwater and guiding it to a suitable location for discharge. The water guiding section can be a rectangular channel structure, which is simple and easy to manufacture. The water guiding section can be made of silicone, which has good elasticity and waterproof properties. Rubber can also be used as an alternative feature.
[0055] Furthermore, the snap-fit portion includes a snap piece 21 that adheres to the upper surface of the snap block 32 and an inner flange 22 that snaps onto the side of the snap block 32 away from the U-shaped block 31.
[0056] Specifically, the snap-fit part includes a snap piece 21 that adheres to the upper surface of the mounting block 32 and an inner flange 22 that fastens to the side of the mounting block 32 away from the U-shaped block 31. The snap piece 21 adheres to the upper surface of the mounting block 32 and serves to fix the water guide plate. The shape of the snap piece 21 can be designed according to the shape of the mounting block to ensure a tight fit. The snap piece 21 can be made of plastic, which is lightweight and easy to mold. The inner flange 22 fastens to the side of the mounting block 32, further strengthening the connection between the water guide plate 2 and the intermediate pressure block 3. The inner flange 22 can be made of rubber, which has good elasticity and can better fasten to the mounting block 32. The water guide part, the snap piece 21, and the inner flange 22 can be integrally molded to ensure the integrity and waterproof performance of the water guide plate 2.
[0057] The implementation principle of a waterproof medium-voltage photovoltaic module according to an embodiment of this application is as follows: The waterproof medium-voltage photovoltaic module is fixedly connected to the bracket through the connecting part of the medium-voltage block 3, and the cover part overlaps on the photovoltaic module 1, achieving a stable connection with the photovoltaic module 1. The water guide plate 2 is fixed on the medium-voltage block 3, which can effectively guide rainwater from the surface of the photovoltaic module 1 and prevent rainwater from seeping in through gaps. Fasteners further enhance the tightness of the connection between the medium-voltage block 3 and the photovoltaic module 1, improving the waterproof effect. This design not only solves the problems of high cost and easy failure of waterproof system caused by adding water guide channels in the prior art, but also reduces the construction cost of photovoltaic power stations and improves waterproof performance and market competitiveness.
[0058] This application provides a plurality of interconnected photovoltaic modules 1, with the aforementioned waterproof medium-voltage photovoltaic panel assembly installed at the gaps between adjacent photovoltaic modules 1. The plurality of photovoltaic modules are interconnected to form a single photovoltaic panel, and the waterproof medium-voltage photovoltaic panel assembly is installed at the gaps between adjacent photovoltaic modules, serving both waterproofing and securing purposes.
[0059] The aforementioned photovoltaic panel, through the application of waterproof medium-voltage modules, effectively prevents rainwater from seeping in through gaps, protecting the photovoltaic modules 1 and extending the lifespan of the photovoltaic panel. Simultaneously, the fixing function of the medium-voltage modules ensures the connection stability between the photovoltaic modules 1, improving the overall reliability and safety of the photovoltaic panel. This design solves the problem of poor waterproofing in existing sloping roof photovoltaic systems, providing a guarantee for the widespread application of sloping roof photovoltaic systems.
[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0061] The above provides a detailed description of a waterproof medium-voltage photovoltaic module and a photovoltaic panel provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.
Claims
1. A waterproof medium-voltage module for photovoltaic panels, characterized in that, include: The medium pressure block (3) has a connecting part and a covering part. The connecting part is fixedly connected to the bracket of the photovoltaic panel and is located in the gap between adjacent photovoltaic modules (1). The covering part overlaps on two adjacent photovoltaic modules (1). A water guide plate (2) is fixedly installed on the medium pressure block (3), and the surface of the water guide plate (2) covers the entire surface of the medium pressure block.
2. A waterproof medium-voltage module for photovoltaic panels according to claim 1, characterized in that, Fasteners are provided between the medium pressure block (3) and the bracket so that the cover is pressed against the two adjacent photovoltaic modules (1).
3. A waterproof medium-voltage module for photovoltaic panels according to claim 2, characterized in that, The fastener includes an internal hexagonal bolt (4), which is threaded between the intermediate pressure block (3) and the bracket.
4. A waterproof medium-voltage module for photovoltaic panels according to claim 1, characterized in that, The connecting part includes a U-shaped block (31) disposed in the gap between adjacent photovoltaic modules (1), and the covering part includes a jack (32) disposed at both ends of the U-shaped block (31) and extending toward the photovoltaic module (1).
5. A waterproof medium-voltage module for photovoltaic panels according to claim 4, characterized in that, The mounting block (32) is inclined on the side close to the photovoltaic module (1), and the end of the mounting block (32) at least away from the U-shaped block (31) is attached to the surface of the photovoltaic module (1).
6. A waterproof medium-voltage module for photovoltaic panels according to claim 4, characterized in that, The surface of the block (32) near the photovoltaic module (1) has a serrated structure.
7. A waterproof medium-voltage module for photovoltaic panels according to claim 4, characterized in that, The water guide plate (2) is an elastic element and is snapped onto the intermediate pressure block (3).
8. A waterproof medium-voltage module for photovoltaic panels according to claim 7, characterized in that, The water guide plate (2) includes a water guide portion located within the U-shaped block (31) and a snap-fit portion that engages with the mounting block (32).
9. A waterproof medium-voltage module for photovoltaic panels according to claim 8, characterized in that, The snap-fit portion includes a snap piece (21) that adheres to the upper surface of the snap block (32) and an inner flange (22) that snaps onto the side of the snap block (32) away from the U-shaped block (31).
10. A photovoltaic panel comprising a plurality of interconnected photovoltaic modules (1), characterized in that, A waterproof medium-pressure photovoltaic module as described in any one of claims 1-9 is provided at the gap between adjacent photovoltaic modules (1).