Lightning protection drainage photovoltaic block

Abstract

The utility model relates to green building technical field discloses a lightning protection drainage photovoltaic compression block, the compression block includes upper compression block body, protection mechanism, bolt and spring. Protection mechanism includes lower compression block body, is integrated with lightning protection puncture structure on it, both common constitute lightning protection assembly, are used for puncturing the frame of photovoltaic assembly and form electrical conduction. The inside of upper compression block body is provided with the inclined drainage groove, is equipped with the mud outlet of communication with drainage groove on its outer wall, is used for the rainwater and silt of collection and exports. Spring is sleeved in bolt, and is contained between upper compression block body and lower compression block body, and the continued elastic pre -tension is provided through the fastening effect of bolt. The utility model integrates lightning protection, drainage and elastic fastening function, solves the problem that the compression block function is single, needs additional lightning protection spare, is easy to cause ponding and silt and the connection reliability is insufficient.

Description

Technical Field

[0001] This utility model relates to the field of green building technology, and in particular to a lightning protection and drainage photovoltaic pressure block. Background Technology

[0002] Photovoltaic power generation, as a clean energy technology, has been widely used globally. In the construction of photovoltaic power plants, photovoltaic modules typically need to be secured to metal supports using numerous clamps to form a stable and reliable photovoltaic array. As a key component connecting the photovoltaic modules to the support structure, the structural design of these clamps directly affects the installation efficiency, operational stability, and long-term reliability of the entire photovoltaic system.

[0003] Currently, the traditional photovoltaic (PV) clamps commonly used in the industry primarily function to mechanically tighten and secure PV modules. However, when these clamps are installed on the lower frame of tilted PV modules, their physical structure creates an obstacle, preventing rainwater and surface dust from draining away smoothly. Over time, a mixture of water, dust, and debris forms sludge that accumulates at the junction of the module frame and the clamp. This accumulation not only obstructs the lower solar cells, causing a "hot spot effect" due to localized shading and reducing power generation efficiency, but also accelerates the aging and corrosion of the module frame due to prolonged dampness, posing a serious threat to the long-term lifespan of the PV modules.

[0004] Furthermore, as outdoor systems composed of large-area metal structures, photovoltaic power plants must have reliable lightning protection and grounding measures. To achieve this, the metal frames of all photovoltaic modules need to be reliably equipotentially connected to the grounded metal supports. When using traditional clamping blocks, additional dedicated conductive pads, grounding plates, or jumper wires are typically required to achieve conductive connection while ensuring tightness. This functional separation design undoubtedly increases the variety of components, the complexity of procurement and management, prolongs on-site installation time, and increases safety hazards caused by missing or improperly installed components.

[0005] In summary, existing photovoltaic briquettes have limited functionality. Their structure not only fails to solve the problem of water and mud accumulation during installation, but also requires combination with various additional functional accessories to meet the system's lightning protection and grounding requirements. This results in high material costs, low construction efficiency, and insufficient long-term operational reliability for the overall installation solution.

[0006] Therefore, this utility model proposes a lightning protection and drainage photovoltaic pressure block to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a lightning protection and drainage photovoltaic block, which aims to improve the problems of existing photovoltaic blocks where the structural design hinders the discharge of rainwater and sediment, and the lightning protection function requires additional components, resulting in complex structure and inconvenient installation.

[0008] This utility model provides a lightning protection and drainage photovoltaic pressure block, including: an upper pressure block body and a protective mechanism disposed below the upper pressure block body; the pressure block also includes bolts and springs for connecting and fastening the upper pressure block body and the protective mechanism.

[0009] The protective mechanism includes a lower pressure block body and a lightning protection puncture structure integrally formed on the lower pressure block body. The lower pressure block body and the lightning protection puncture structure together constitute a lightning protection component.

[0010] Furthermore, the upper pressure block body, the protective mechanism, the bolts and the springs are combined in the following way: the lightning protection puncture structure protrudes from the lower pressure block body toward the surface of the photovoltaic module; a drainage groove for guiding flow is opened inside the upper pressure block body, and a mud discharge port connected to the end of the drainage groove is opened on the outer wall of the upper pressure block body.

[0011] Preferably, the upper pressure block body and the lower pressure block body are respectively provided with through holes at corresponding positions. The bolt passes through the through hole of the upper pressure block body in sequence. The spring is sleeved on the shank of the bolt and housed in the receiving cavity formed between the upper pressure block body and the lower pressure block body, and is threadedly connected to the through hole of the lower pressure block body.

[0012] Preferably, the lightning protection puncture structure is disposed on the surface of the lower pressure block body that is in contact with the photovoltaic module frame, and the lightning protection puncture structure is at least one metal needle or blade structure capable of piercing the anodized layer of the photovoltaic module frame.

[0013] Preferably, the drainage trough is an inclined channel that runs through the length of the upper pressure block body, and the angle between the center line of the trough and the horizontal plane is 30 to 45 degrees.

[0014] Preferably, the sludge discharge port is a circular or elliptical through hole with an equivalent diameter of five to ten millimeters.

[0015] Preferably, both the upper and lower pressure block bodies are made of aluminum alloy.

[0016] Preferably, the inlet of the drainage channel is located on the side of the upper pressure block body facing the photovoltaic module installation center, and the inlet is lower than the upper surface of the upper pressure block body.

[0017] Preferably, the overall outline of the protective mechanism matches the upper pressure block body, and the lightning protection components are integrated inside the protective mechanism to form a compact and functionally integrated lower pressure block structure.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problem that existing lightning protection grounding requires additional components, resulting in complex structure, inconvenient installation, and poor connection reliability. By integrating a lightning protection puncture structure on the lower pressure block body, it achieves the technical effect of simplifying the overall structure, reducing the number of components and installation costs, and improving the safety and reliability of lightning protection.

[0020] 2. This utility model solves the problem in the prior art that the pressure block structure easily obstructs the discharge of rainwater and mud from the edge of the photovoltaic module, leading to the accumulation of dirt and affecting the power generation efficiency, by setting an inclined drainage groove and a mud discharge port connected to it on the upper pressure block body. It achieves the technical effects of timely and effective drainage and mud discharge, keeping the module clean, ensuring power generation efficiency and extending the module life.

[0021] 3. This utility model solves the problem that conventional bolt fastening in the prior art is prone to loosening due to thermal expansion and contraction under outdoor temperature changes, which leads to a decrease in connection reliability. It achieves the technical effect of providing continuous pre-tightening force, ensuring long-term stable and reliable connection, and improving the structural safety of photovoltaic system.

[0022] 4. This utility model solves the problem in the prior art that electrochemical corrosion and shortened system life are easily caused by the different materials of the pressing block and the module frame due to the different materials of the pressing block and the module frame. It achieves the technical effect of avoiding electrochemical corrosion, enhancing the durability of components and extending the overall service life of the photovoltaic system. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a lightning protection and drainage photovoltaic pressure block proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the sludge discharge port of a lightning protection and drainage photovoltaic block proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the bolt structure of a lightning protection and drainage photovoltaic pressure block proposed in this utility model.

[0026] Legend:

[0027] 1. Upper pressure block body; 2. Protective mechanism; 21. Drainage channel; 22. Sludge discharge port; 23. Lightning protection component; 231. Lower pressure block body; 232. Lightning protection puncture structure; 24. Bolt; 25. Spring. Detailed Implementation

[0028] 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.

[0029] Example:

[0030] Reference Figures 1 to 3 This utility model provides a lightning protection and drainage photovoltaic pressure block, which aims to solve the problems of existing photovoltaic pressure blocks, such as electrochemical corrosion caused by different materials, the need for additional configuration of lightning protection function, easy accumulation of water and mud on the frame of the module, and insufficient reliability of fastening connection.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the device includes an upper pressure block body 1 and a protective mechanism 2 disposed below the upper pressure block body 1. The pressure block also includes bolts 24 and springs 25 for connecting and fastening the upper pressure block body 1 and the protective mechanism 2. The protective mechanism 2 includes a lower pressure block body 231 and a lightning protection puncture structure 232 integrally formed on the lower pressure block body 231. The lower pressure block body 231 and the lightning protection puncture structure 232 together constitute a lightning protection component 23. The lightning protection puncture structure 232 protrudes from the lower pressure block body 231 toward the surface of the photovoltaic module. The lightning protection puncture structure 232 is disposed on the surface of the lower pressure block body 231 that is in contact with the frame of the photovoltaic module. A drainage groove 21 for guiding flow is provided inside the upper pressure block body 1, and a mud discharge port 22 connected to the end of the drainage groove 21 is provided on the outer side wall of the upper pressure block body 1.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The overall outline of the protective mechanism 2 matches the upper pressure block body 1. The lightning protection component 23 is integrated inside the protective mechanism 2 to form a compact and functionally integrated lower pressure block structure. The lightning protection component 23 consists of the lower pressure block body 231 and the fixedly connected lightning protection piercing structure 232. The lightning protection piercing structure 232 is at least one metal needle or blade structure that can pierce the anodized layer of the photovoltaic module frame. At the same time, the upper pressure block body 1 and the lower pressure block body 231 are respectively provided with through holes at corresponding positions for connection. In the assembled state, the spring 25 is sleeved on the shank of the bolt 24. The bolt 24 passes through the through hole of the upper pressure block body 1 in sequence. The spring 25 is housed in the receiving cavity formed between the upper pressure block body (1) and the lower pressure block body (231). The end of the bolt 24 is finally threadedly connected to the through hole of the lower pressure block body 231.

[0033] Reference Figure 1 , Figure 2 and Figure 3 The drainage channel 21 is an inclined channel that runs through the length of the upper pressure block body 1. The center line of the drainage channel 21 makes an angle of 30-45 degrees with the horizontal plane. The inlet of the drainage channel 21 is located on the side of the upper pressure block body 1 facing the photovoltaic module installation center. This inlet is lower than the upper surface of the upper pressure block body 1. Both the upper pressure block body 1 and the lower pressure block body 231 are made of aluminum alloy. The mud discharge port 22 is a circular or elliptical through hole with an equivalent diameter of 5-10 mm.

[0034] The implementation principle of this application embodiment is as follows: During installation, the photovoltaic module is placed on the bracket, and the pressure block is removed so that the lower pressure block body 231 contacts the frame of the photovoltaic module, and the upper pressure block body 1 is placed on top. After the bolt 24 passes through the upper pressure block body 1 and the spring 25 in sequence, it is tightened and fixed with the lower pressure block body 231. During the tightening process, the tip of the lightning protection piercing structure 232 will pierce the anodized insulation layer on the surface of the aluminum alloy frame of the photovoltaic module, so as to achieve direct electrical conduction between the lower pressure block body 231 and the metal substrate of the frame. When lightning strikes, the current can be safely conducted to the ground through the module frame, the lightning protection piercing structure 232, the lower pressure block body 231 and the entire bracket system.

[0035] During the operation of the photovoltaic system, when encountering rain or snow, rainwater and silt will flow down the surface of the photovoltaic module to the lower frame and collect at the pressure block position. Since the inlet of the drainage channel 21 is lower than the upper surface of the upper pressure block body 1, rainwater and silt will smoothly enter the inclined drainage channel 21 and flow quickly along the inclined channel to the mud discharge port 22 under the action of gravity, and finally be discharged from the mud discharge port 22, thus avoiding the accumulation of water and dirt on the edge of the module.

[0036] Under long-term outdoor temperature cycling, the components will expand and contract due to heat. Since a spring 25 is provided between the upper pressure block body 1 and the lower pressure block body 231, the elastic energy storage function of the spring 25 can continuously provide pre-tightening force to compensate for the gap caused by temperature deformation, and ensure that the tightening torque of the bolt 24 is always maintained within the set range, thereby ensuring that the clamping connection of the pressure block to the photovoltaic module is always firm and reliable.

Claims

1. A lightning protection and drainage photovoltaic pressure block, comprising an upper pressure block body (1) and a protective mechanism (2) disposed below the upper pressure block body (1), the protective mechanism (2) comprising a lower pressure block body (231), the pressure block further comprising a bolt (24) and a spring (25) for connecting and fastening the upper pressure block body (1) and the protective mechanism (2); Its features are, The protective mechanism (2) also includes a lightning protection puncture structure (232) integrally formed on the lower pressure block body (231). The lower pressure block body (231) and the lightning protection puncture structure (232) together constitute a lightning protection component (23). The lightning protection puncture structure (232) protrudes from the lower pressure block body (231) toward the surface of the photovoltaic module. Furthermore, a drainage groove (21) for guiding flow is provided inside the upper pressure block body (1), and a mud discharge port (22) connected to the end of the drainage groove (21) is provided on the outer side wall of the upper pressure block body (1).

2. The lightning protection and drainage photovoltaic pressure block according to claim 1, characterized in that, The upper pressure block body (1) and the lower pressure block body (231) are respectively provided with through holes at corresponding positions. The bolt (24) passes through the through hole of the upper pressure block body (1) in sequence. The spring (25) is sleeved on the shank of the bolt (24) and housed in the receiving cavity formed between the upper pressure block body (1) and the lower pressure block body (231), and is threadedly connected to the through hole of the lower pressure block body (231).

3. The lightning protection and drainage photovoltaic pressure block according to claim 1, characterized in that, The lightning protection puncture structure (232) is disposed on the surface of the lower pressure block body (231) that is in contact with the photovoltaic module frame, and the lightning protection puncture structure (232) is at least one metal needle or blade structure capable of piercing the anodized layer of the photovoltaic module frame to form a reliable electrical connection.

4. The lightning protection and drainage photovoltaic pressure block according to claim 1, characterized in that, The drainage trough (21) is an inclined channel that runs through the length of the upper pressure block body (1). The center line of the drainage trough (21) is at an angle of 30-45 degrees with the horizontal plane to accelerate the discharge of rainwater and silt by using gravity.

5. A lightning protection and drainage photovoltaic pressure block according to claim 1 or 4, characterized in that, The sludge discharge port (22) is a circular or elliptical through hole with an equivalent diameter of 5 to 10 mm, which is used to ensure the smooth discharge of sludge and prevent large particles of debris from entering the drainage trough (21).

6. A lightning protection and drainage photovoltaic pressure block according to claim 1, characterized in that, To reduce electrochemical corrosion when in contact with the aluminum alloy frame of the photovoltaic module, both the upper pressure block body (1) and the lower pressure block body (231) are made of aluminum alloy.

7. A lightning protection and drainage photovoltaic pressure block according to claim 1, characterized in that, The inlet of the drainage channel (21) is located on the side of the upper pressure block body (1) facing the photovoltaic module installation center. The inlet is lower than the upper surface of the upper pressure block body (1) to facilitate the collection of rainwater flowing to the edge of the pressure block.

8. A lightning protection and drainage photovoltaic pressure block according to claim 1, characterized in that, The overall outline of the protective mechanism (2) matches the upper pressure block body (1), and the lightning protection component (23) is integrated inside the protective mechanism (2) to form a compact and functionally integrated lower pressure block structure.

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