A kind of main water tank and photovoltaic panel connecting assembly suitable for photovoltaic waterproof system

By designing a double-layer mid-plate structure and connectors, the problem of photovoltaic panels loosening and breaking under extreme weather conditions was solved, achieving reliable fixing of photovoltaic panels to the water tank and improving the stability of the waterproof system.

CN224438918UActive Publication Date: 2026-06-30WUXI ALSHUN NEW ENERGY TECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing photovoltaic panel connection components are prone to loosening and breakage under extreme weather conditions, which increases the operational risks of photovoltaic power plants.

Method used

The structure adopts a double-layer crossbeam structure, including an upper transverse crossbeam and a lower transverse crossbeam, which are connected by vertical ribs. Combined with an M-shaped water tank and pressure plate, bolts and dovetail screws are used to enhance the connection stability and resistance to deformation.

Benefits of technology

It significantly improves the load-bearing strength and bending resistance of photovoltaic panels, prevents loosening and displacement, ensures reliable fixing of photovoltaic panels to the water tank, and enhances the sealing and stability of the waterproof system.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224438918U_ABST
    Figure CN224438918U_ABST
Patent Text Reader

Abstract

This utility model discloses a connection assembly for the main water tank and photovoltaic panel in a photovoltaic waterproof system, belonging to the technical field of connection assembly technology. This connection assembly includes a double-layer central support plate, a pressure plate, an M-shaped water tank, and a photovoltaic module frame. Bolts are inserted into both sides of the top surface of the pressure plate, and the bottom ends of the two bolts are threaded to both sides of the double-layer central support plate. The photovoltaic module frame is disposed between the double-layer central support plate and the pressure plate. The double-layer central support plate is located at the top of the M-shaped water tank, and connectors are inserted into the outer wall of the double-layer central support plate. The double-layer central support plate is connected to the M-shaped water tank through the connectors. This utility model increases the resistance to breakage of the central support plate under extreme weather conditions by setting the double-layer central support plate as a two-layer structure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of connection component technology, specifically a connection component between the main water tank and the photovoltaic panel in a photovoltaic waterproof system. Background Technology

[0002] Building Integrated Photovoltaics (BIPV) is a technology that integrates photovoltaic panels into buildings. One implementation involves using framed components and drainage structures to create an integrated roof. Common installation structures typically include staggered main beams (longitudinal), secondary beams (transverse), and purlins. The purlins not only fix the components to the secondary beams but also act as drainage channels between the component frames. A search revealed a Chinese patent with authorization publication number CN113452309B, which discloses a connector, a photovoltaic panel connection assembly, and a BIPV roofing system. The connector consists of a first connecting part, a second connecting part, and a bottom portion forming a first drainage channel extending in the same direction as the connector. The photovoltaic panel connection assembly also includes clamping members positioned opposite the connector, and fasteners and locking elements that cooperate to connect the connector and the clamping members. The gap between the connector and the clamping member is used to accommodate the photovoltaic panel. The connector has a locking position for abutting the side of the photovoltaic panel and an inclined surface that cooperates with the fastener. The connector and the clamping member are relatively close, which drives the locking position to move along the direction perpendicular to the inclined surface in a direction away from the inclined surface, squeezing the photovoltaic panel from the side of the photovoltaic panel towards the center. The photovoltaic panel connecting assembly provided by this invention can provide force and fix the photovoltaic module in both vertical and horizontal directions, ensuring a stable fixing effect and enhancing the fixing effect of the photovoltaic panel.

[0003] However, the standard mid-slab in the industry is currently a single layer, which is prone to loosening and breakage under extreme weather conditions, posing a great danger to the operation of photovoltaic power plants. Utility Model Content

[0004] To address the problem that existing connection components are easily affected by the external environment, resulting in adverse conditions, this utility model provides a connection component between the main water tank and the photovoltaic panel in a photovoltaic waterproof system.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A connection assembly between a main water tank and a photovoltaic panel in a photovoltaic waterproof system includes a double-layer intermediate plate, a pressure plate, an M-shaped water tank, and a photovoltaic module frame. Bolts are inserted into both sides of the top surface of the pressure plate, and the bottom ends of the two bolts are threaded to both sides of the double-layer intermediate plate. The photovoltaic module frame is set between the double-layer intermediate plate and the pressure plate. The double-layer intermediate plate is located at the top of the M-shaped water tank, and connectors are inserted into the outer wall of the double-layer intermediate plate. The double-layer intermediate plate is connected to the M-shaped water tank through the connectors.

[0007] Furthermore, the double-layer crossbeam includes an upper transverse crossbeam and a lower transverse crossbeam, with vertical ribs connecting the upper transverse crossbeam and the lower transverse crossbeam.

[0008] The beneficial effects of adopting the above-mentioned further scheme are that the upper and lower horizontal supports, together with the vertical ribs, form a three-dimensional structure. Compared with a single-layer support plate, this significantly improves the load-bearing strength and bending resistance, and can better withstand the weight of the photovoltaic panels and external loads. The vertical ribs enhance the connection stability of the two horizontal supports, allowing the force to be evenly distributed between the two layers, and avoiding excessive local stress that could lead to deformation.

[0009] Furthermore, screw holes are respectively provided on both sides of the upper and lower transverse supports, and the interiors of the two screw holes respectively engage with one end of the bolt.

[0010] The beneficial effect of adopting the above-mentioned further solution is that it enables a detachable connection between the double-layer middle support plate and the pressure plate, which facilitates later maintenance or replacement of parts.

[0011] Furthermore, bottom grooves are respectively opened on both sides of the bottom surface of the lower transverse support, and the interiors of the two bottom grooves are in contact with the two sides of the M-shaped water tank.

[0012] The advantages of adopting the above-mentioned further solutions are: increasing the contact area, making the stress on the double-layer intermediate plate more even, and avoiding deformation of the M-shaped water tank due to excessive local pressure. The limiting function of the bottom tank prevents the double-layer intermediate plate from sliding on the M-shaped water tank, ensuring precise connection position, improving the stability of the connection between the photovoltaic panel and the water tank, enhancing the sealing of the waterproof system, and reducing the risk of rainwater leakage.

[0013] Furthermore, the pressure plate includes a U-shaped plate, with pressure edges provided on both sides of the top surface of the U-shaped plate, and anti-slip pads connected to the top surfaces of the two pressure edges, with the bottom surfaces of the anti-slip pads fitting against the top edge of the photovoltaic module frame.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the U-shaped plate wraps around the frame of the photovoltaic module, and the pressing edge is combined with the anti-slip pad to enhance the friction with the photovoltaic panel and prevent the photovoltaic panel from sliding under vibration or wind.

[0015] Furthermore, protruding strips are installed on both sides of the inner wall of the U-shaped plate.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the installation and use of the convex strip can play a role in strengthening the structure inside the U-shaped plate.

[0017] Furthermore, the top surface of the bolt is provided with a thickened cap, and the top surface of the thickened cap is in contact with the inner bottom surface of the U-shaped plate.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the thickened cap on the top surface of the bolt increases the contact area with the bottom surface of the U-shaped plate, so that the bolt tightening force is applied to the pressure plate more evenly, and the U-shaped plate is prevented from sinking due to local stress.

[0019] Furthermore, the connector is designed as a dovetail wire.

[0020] The beneficial effects of adopting the above-mentioned further solution are that the dovetail thread structure can tightly engage the double-layer intermediate plate and the M-shaped water tank, providing strong connection strength and preventing separation. The dovetail thread does not require pre-drilling during installation and can be directly screwed in, simplifying the installation process. Furthermore, its excellent anti-loosening performance ensures that it is not easily loosened by vibration during long-term use, thus ensuring the connection stability between the photovoltaic panel and the M-shaped water tank.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This type of component, applicable to the connection between the main water tank and photovoltaic panels in a photovoltaic waterproof system, increases the breakage resistance of the double-layer intermediate support plate under extreme weather conditions by setting it as a two-layer structure. Two vertical reinforcing bars are added between the two layers to enhance the seismic resistance of the intermediate support plate under extreme weather conditions and prevent it from loosening. The double-layer intermediate support plate and pressure plate are connected by bolts, which securely clamps the photovoltaic module frame, ensuring reliable fixation of the photovoltaic panel and the M-shaped water tank and preventing displacement of the photovoltaic panel under external forces such as wind and rain. Connectors link the double-layer intermediate support plate and the M-shaped water tank, allowing them to work together to improve the overall structural deformation resistance. The threaded connection of the bolts facilitates fine-tuning of the tightness during installation, adapting to photovoltaic module frames of different thicknesses, enhancing the versatility and ease of installation of the component, while ensuring the sealing of the photovoltaic waterproof system. Attached Figure Description

[0023] Figure 1 This utility model provides an assembly diagram of a connection component between the main water tank and the photovoltaic panel in a photovoltaic waterproof system.

[0024] Figure 2 A three-dimensional schematic diagram of a connection assembly between the main water tank and the photovoltaic panel in a photovoltaic waterproof system provided by this utility model;

[0025] Figure 3A cross-sectional view of a connection assembly between the main water tank and the photovoltaic panel in a photovoltaic waterproof system, provided by this utility model;

[0026] Figure 4 This utility model provides an unfolded schematic diagram of a connection assembly between the main water tank and the photovoltaic panel in a photovoltaic waterproof system.

[0027] Figure 5 This utility model provides a top view of a connection assembly between the main water tank and the photovoltaic panel in a photovoltaic waterproof system.

[0028] In the diagram: 1. Double-layer middle support plate; 101. Upper transverse support; 102. Lower transverse support; 103. Bottom groove; 104. Screw hole; 105. Vertical rib; 2. Pressure plate; 201. U-shaped plate; 202. Edge pressing; 203. Anti-slip pad; 204. Raised strip; 3. Bolt; 4. Connector; 5. M-shaped water channel; 6. Photovoltaic module frame. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-5 This utility model provides a technical solution: a connection assembly between the main water tank and the photovoltaic panel in a photovoltaic waterproof system, comprising a double-layer intermediate support plate 1, a pressure plate 2, an M-shaped water tank 5, and a photovoltaic module frame 6. Bolts 3 are inserted through both sides of the top surface of the pressure plate 2, and the bottom ends of the two bolts 3 are threaded to both sides of the double-layer intermediate support plate 1. The photovoltaic module frame 6 is set between the double-layer intermediate support plate 1 and the pressure plate 2. The double-layer intermediate support plate 1 is located at the top of the M-shaped water tank 5. Connectors 4 are inserted through the outer wall of the double-layer intermediate support plate 1, and the double-layer intermediate support plate 1 is connected to the photovoltaic panel via the connectors 4. The M-shaped water trough 5 is connected, and the double-layer central support plate 1 and pressure plate 2 are connected by bolts 3, which can firmly clamp the photovoltaic module frame 6, realize the reliable fixation of the photovoltaic panel and the M-shaped water trough 5, and prevent the photovoltaic panel from shifting under the action of external forces such as wind and rain. The connector 4 connects the double-layer central support plate 1 and the M-shaped water trough 5, so that the two work together to bear the force and improve the overall structural deformation resistance. The threaded connection of the bolts 3 makes it easy to fine-tune the tightness during installation, adapt to photovoltaic module frames of different thicknesses, enhance the versatility of the module and the convenience of installation, and at the same time ensure the sealing of the photovoltaic waterproof system.

[0031] 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.

[0032] As one embodiment of this utility model, the double-layer support plate 1 further includes an upper transverse support 101 and a lower transverse support 102, with a vertical rib 105 connecting the upper transverse support 101 and the lower transverse support 102. The upper transverse support 101, the lower transverse support 102, and the vertical rib 105 form a three-dimensional structure, which significantly improves the load-bearing strength and bending resistance compared to a single-layer support plate, and can better bear the weight of the photovoltaic panel and external loads. The vertical rib 105 enhances the connection stability of the two transverse supports, allowing the force to be evenly transmitted between the two layers, and avoiding excessive local stress that could lead to deformation.

[0033] As an embodiment of this utility model, further, screw holes 104 are respectively provided on both sides of the upper transverse support 101 and the lower transverse support 102. The interior of the two screw holes 104 respectively engages with one end of the bolt 3, realizing the detachable connection between the double-layer middle support plate 1 and the pressure plate 2, which is convenient for later maintenance or replacement of parts.

[0034] As one embodiment of this utility model, furthermore, bottom grooves 103 are respectively formed on both sides of the bottom surface of the lower transverse support 102. The interiors of the two bottom grooves 103 respectively contact the two sides of the M-shaped water tank 5, increasing the contact area and making the force on the double-layer middle support plate 1 more even, avoiding excessive local pressure that could cause deformation of the M-shaped water tank 5. The limiting function of the bottom grooves 103 prevents the double-layer middle support plate 1 from sliding on the M-shaped water tank 5, ensuring accurate connection position, improving the stability of the connection between the photovoltaic panel and the water tank, enhancing the sealing of the waterproof system, and reducing the risk of rainwater leakage.

[0035] As an embodiment of this utility model, the pressure plate 2 further includes a U-shaped plate 201, with pressure edges 202 respectively provided on both sides of the top surface of the U-shaped plate 201. Anti-slip pads 203 are respectively connected to the top surfaces of the two pressure edges 202. The bottom surface of the anti-slip pads 203 is in contact with the top edge of the photovoltaic module frame 6. The U-shaped plate 201 wraps around the photovoltaic module frame 6. The pressure edges 202, together with the anti-slip pads 203, enhance the friction with the photovoltaic panel and prevent the photovoltaic panel from sliding under vibration or wind.

[0036] As an embodiment of this utility model, further, protruding strips 204 are installed on both sides of the inner wall of the U-shaped plate 201. Through the installation and use of the protruding strips 204, the structure inside the U-shaped plate 201 can be strengthened.

[0037] As an embodiment of this utility model, the top surface of the bolt 3 is provided with a thickened cap, the top surface of which contacts the bottom surface of the U-shaped plate 201. The thickened cap on the top surface of the bolt 3 increases the contact area with the bottom surface of the U-shaped plate 201, so that the locking force of the bolt 3 is applied to the pressure plate 2 more evenly, and the U-shaped plate 201 is prevented from being dented due to local stress.

[0038] As one embodiment of this utility model, the connector 4 is further configured as a dovetail thread. The dovetail thread structure can tightly engage the double-layer intermediate support plate 1 and the M-shaped water tank 5, providing strong connection strength and preventing separation. The dovetail thread does not require pre-drilling during installation and can be directly screwed in, simplifying the installation process. Furthermore, its anti-loosening performance is excellent, and it is not easily loosened by vibration during long-term use, ensuring the connection stability between the photovoltaic panel and the M-shaped water tank 5. Specifically, the working principle of this connection assembly between the main water tank and the photovoltaic panel in a photovoltaic waterproof system is as follows: During use, the double-layer intermediate support plate 1 is first placed on top of the M-shaped water tank 5, so that the bottom groove 103 of the lower horizontal support 102 is in contact with both sides of the M-shaped water tank 5. The double-layer intermediate support plate 1 and the M-shaped water tank 5 are tightly connected by the connector 4 (dovetail thread). The dovetail thread does not require pre-drilling and can be directly screwed in, ensuring a stable connection between the two. Subsequently, the photovoltaic module frame 6 is placed between the double-layer intermediate support plate 1 and the pressure plate 2. The U-shaped plate 201 of the pressure plate 2 wraps around the photovoltaic module frame 6, and the protrusions 204 on its inner wall enhance the structural strength and restrict the lateral displacement of the photovoltaic panel. The anti-slip pads 203 on the pressure edge 202 are attached to the top surface of the photovoltaic module frame 6 to increase friction and prevent slippage. Next, the bolts 3 are passed through both sides of the pressure plate 2 and threaded into the screw holes 104 of the upper transverse support 101 and the lower transverse support 102 of the double-layer intermediate support plate 1. The thickened cap on the top surface of the bolt 3 contacts the inner bottom surface of the U-shaped plate 201. When the bolt 3 is tightened, the thickened cap makes the locking force evenly applied to the pressure plate 2, avoiding local concavity of the U-shaped plate 201. The photovoltaic module frame 6 is firmly clamped by the fine adjustment of the bolts 3. The upper horizontal support 101 and the lower horizontal support 102 of the double-layer support plate 1, together with the vertical rib 105, form a three-dimensional structure, which enhances the load-bearing strength and ensures that the overall structure is not easily deformed under the action of external forces such as wind and rain. This enables a reliable connection between the photovoltaic panel and the M-shaped water tank 5, and ensures the sealing and stability of the photovoltaic waterproof system.

Claims

1. A connecting assembly for connecting a main gutter to a photovoltaic panel in a photovoltaic waterproof system, characterized in that, The assembly includes a double-layer support plate (1), a pressure plate (2), an M-shaped water tank (5), and a photovoltaic module frame (6). Bolts (3) are inserted on both sides of the top surface of the pressure plate (2). The bottom ends of the two bolts (3) are threaded to both sides of the double-layer support plate (1). The photovoltaic module frame (6) is set between the double-layer support plate (1) and the pressure plate (2). The double-layer support plate (1) is located at the top of the M-shaped water tank (5). A connector (4) is inserted on the outer wall of the double-layer support plate (1). The double-layer support plate (1) is connected to the M-shaped water tank (5) through the connector (4).

2. A main gutter and photovoltaic panel connecting assembly suitable for use in a photovoltaic waterproof system according to claim 1, characterized in that, The double-layer middle support plate (1) includes an upper transverse support (101) and a lower transverse support (102), and a vertical rib (105) connects the upper transverse support (101) and the lower transverse support (102).

3. The main gutter and photovoltaic panel connecting assembly for use in a photovoltaic waterproof system according to claim 2, characterized in that, The upper transverse support (101) and the lower transverse support (102) are respectively provided with screw holes (104) on both sides, and the interior of the two screw holes (104) respectively engages with one end of the bolt (3).

4. The main gutter and photovoltaic panel connecting assembly for use in a photovoltaic waterproof system according to claim 3, characterized in that, Bottom grooves (103) are respectively provided on both sides of the bottom surface of the lower horizontal support (102), and the interiors of the two bottom grooves (103) are in contact with the two sides of the M-shaped water tank (5).

5. The main gutter and photovoltaic panel connecting assembly for use in a photovoltaic waterproof system according to claim 1, wherein, The pressure plate (2) includes a U-shaped plate (201), and pressure edges (202) are respectively provided on both sides of the top surface of the U-shaped plate (201). Anti-slip pads (203) are respectively connected to the top surfaces of the two pressure edges (202). The bottom surface of the anti-slip pads (203) is in contact with the top edge of the photovoltaic module frame (6).

6. The main gutter and photovoltaic panel connecting assembly for use in a photovoltaic waterproof system according to claim 5, wherein, The inner walls of the U-shaped plate (201) are respectively equipped with protrusions (204).

7. The main gutter and photovoltaic panel connecting assembly for use in a photovoltaic waterproof system according to claim 6, wherein, The top surface of the bolt (3) is provided with a thickened cap, and the top surface of the thickened cap is in contact with the inner bottom surface of the U-shaped plate (201).

8. The main gutter and photovoltaic panel connecting assembly for use in a photovoltaic waterproof system according to claim 1, wherein, The connector (4) is a dovetail wire.

Citation Information

Patent Citations

  • Connectors, photovoltaic panel connection assemblies and BIPV roofing systems

    CN113452309B