A bale system for photovoltaic module installation

Abstract

The utility model discloses a kind of briquetting systems for photovoltaic module installation, it is related to photovoltaic support technical field, including photovoltaic module frame, including briquetting and fixed block, briquetting section is Z-shaped, bottom end is clamped and fixed in the first fixed slot of fixed block, photovoltaic module frame one side and briquetting clamping, the other side bottom end is clamped and fixed in the second fixed slot of fixed block;Briquetting top end is clamped and set in the top end of photovoltaic module, and several fixed pieces will photovoltaic module frame and briquetting assembly be fixed on purlin.The utility model can be wrapped the top surface, left side and right side of photovoltaic module frame when installing, improve the ability when photovoltaic module wind pressure, reduce the frame risk when photovoltaic module frame deformation variable is too large.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, specifically to a pressure block system for photovoltaic module installation. Background Technology

[0002] In photovoltaic (PV) module load testing and actual operating environments, extreme testing and natural conditions are encountered, requiring PV modules to have high load-bearing capacity. The clamping block is a key connecting component of the PV support system, used to secure adjacent PV modules or profiles, ensuring long-term stable operation of the system under complex environments such as wind and snow loads. Current technology uses clamping blocks that only cover the top and left sides of the module frame; the right side of the frame is not secured. When the module frame deformation is excessive, the module risks detaching from the frame. When the PV module is subjected to a reverse load, such as wind load, it experiences an upward tearing force. The clamping block acts on the upper side of the frame, acting as a barrier. Due to the stress and deformation, if the deformation is too large, the frame and clamping block will significantly shift, reducing or even eliminating the contact area between them, leading to the PV module detaching from the frame.

[0003] Chinese Patent Publication No. CN222395585U, Publication Date: January 24, 2025, discloses a Chinese patent entitled "Photovoltaic Support and Photovoltaic System." The photovoltaic support includes purlins, pressure blocks, and connectors. The purlins include a bottom wall and a first side wall and a second side wall connected to the bottom wall. The first and second side walls are arranged opposite to each other, forming a groove. A first wing extends from the end of the first side wall away from the bottom wall in a direction away from the groove, and a second wing extends from the end of the second side wall away from the bottom wall in a direction away from the groove. At least one of the first and second side wings is used for connection to a photovoltaic module. The pressure block is used for connection to the photovoltaic module. The connectors connect the bottom wall and the pressure block. In this photovoltaic support, the right side of the photovoltaic module is not secured, making it prone to detachment during extreme weather conditions. Utility Model Content

[0004] This utility model provides a pressure block system for photovoltaic module installation. By setting pressure blocks and fixing blocks, the right side of the photovoltaic module frame is wrapped, which improves the wind pressure resistance and reduces the risk of the photovoltaic module frame falling off when the deformation is too large.

[0005] A further objective of this invention is to increase the number of fixing points, improve stability, and enhance the overall load-bearing capacity by setting up pressure blocks and fixing blocks.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic module mounting clamping block system, including a photovoltaic module frame, a clamping block and a fixing block, the clamping block having a Z-shaped cross-section, the bottom end of which is snapped and fixed in the first fixing groove of the fixing block, one side of the photovoltaic module frame being snapped and fixed to the clamping block, and the bottom end of the other side being snapped and fixed in the second fixing groove of the fixing block; the top of the clamping block being snapped onto the top of the photovoltaic module frame, and several fasteners fixing the photovoltaic module frame and the clamping block system to the purlin.

[0007] Preferably, the first fixing groove is located on one side of the fixing block, and the second fixing groove is located on the other side of the fixing block. The height of the first fixing groove is greater than the height of the second fixing groove. The first fixing groove is used to fix the pressure block, and the second fixing groove is used to fix the photovoltaic module frame. The different groove heights can better accommodate the size differences between the pressure block and the photovoltaic module frame, enhancing the stability of the overall structure.

[0008] Preferably, the width of the first fixing groove is greater than the width of the second fixing groove. The pressing system is made of high-strength steel. This provides a wider fixing space for the pressing block, better accommodating dimensional changes and enhancing its stability within the fixing groove, making it less prone to loosening under external forces.

[0009] Preferably, the first fixing groove wraps around the right end of the photovoltaic module frame. This first fixing groove wraps around the right end of the photovoltaic module frame, forming a "hugging" structure. When the photovoltaic module frame is subjected to an upward force, this structure can generate a downward pulling effect, effectively offsetting part of the upward force, thereby reducing the stress on the photovoltaic module frame and minimizing frame deformation.

[0010] Preferably, the contact surface between the top of the pressure block and the photovoltaic module frame has several protrusions. These protrusions contact the top surface of the photovoltaic module frame. The pressure block is a right-angled Z-shape with a chamfer on the right side of its top. The protrusion design at the top of the pressure block increases the contact area and friction with the top surface of the photovoltaic module frame, making the connection between the pressure block and the photovoltaic module frame tighter and more stable. This effectively prevents relative sliding between the photovoltaic module frame and the pressure block, thereby improving the wind pressure resistance and stability of the entire module.

[0011] Preferably, the top and left sides of the photovoltaic module frame are engaged with the corresponding sides of the pressure block. The photovoltaic module frame is encased and secured between the pressure block and the second fixing groove. This engagement structure tightly connects the top and left sides of the photovoltaic module frame to the pressure block, and through the cooperation of the pressure block and the second fixing groove, firmly encases the photovoltaic module frame, forming a highly integrated and stable installation structure. It can fix and constrain the photovoltaic module frame from multiple directions, effectively preventing displacement and swaying of the photovoltaic module frame in various directions, especially when facing external forces such as wind pressure and vibration, thus better protecting the photovoltaic module frame.

[0012] Preferably, the first fixing slot and the second fixing slot are arranged opposite to each other, and the fixing block has a first fixing hole near the second fixing slot. The photovoltaic module frame and the pressure block are disposed between the first fixing slot and the second fixing slot. The photovoltaic module frame and the pressure block system are fixed to the purlin by fasteners, which further enhances the stability of the entire structure.

[0013] Preferably, the fixing block has a second fixing hole near its left end, which penetrates the first fixing groove. This multi-point fixing method greatly enhances the connection strength between the pressing block and the fixing block, and improves the stability of the entire pressing block system.

[0014] Preferably, the bottom end of the pressure block is provided with a third fixing hole, which corresponds to the position of the second fixing hole. This provides a precise positioning and fixing point for the connection between the pressure block and the fixing block.

[0015] Preferably, the left-side fastener passes through the second and third fastening holes to secure the pressure block and the fixing block to the purlin, while the right-side fastener passes through the first fastening hole to secure the photovoltaic module frame to the purlin. A fourth fastening hole is provided near the right end of the photovoltaic module frame, corresponding to the position of the first fastening hole. Bolts and nuts are preferred as the fasteners. The two bolts used for fixing increase the number of bolts compared to traditional installation methods, thus strengthening the overall load-bearing capacity.

[0016] Beneficial effects: This utility model can wrap the top, left, and right sides of the photovoltaic module frame during installation, improving the module's resistance to wind pressure and reducing the risk of frame detachment when the module frame deformation is too large; the two parts of the pressure block system, namely the pressure block and the fixing block, are connected by bolts, and the pressure block system and the photovoltaic module frame are fixed by two bolts, which increases the number of bolts installed compared to the traditional installation method, thus strengthening the overall load capacity; this solution allows the bolt installation and pressure block method to be combined to improve the reliability of installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the fixing block of this utility model.

[0019] Reference numerals in the attached figures: 1: Photovoltaic module frame; 2: Pressing block; 3: Fixing block; 4: First fixing groove; 5: Second fixing groove; 6: Protrusion; 7: Purlin; 8: Fixing element; 9: First fixing hole; 10: Second fixing hole. Detailed Implementation

[0020] To address the issue of photovoltaic modules easily deforming or even detaching from their frames due to wind pressure and load in harsh outdoor environments, this utility model provides a photovoltaic module installation clamping block system. Through the matching design of the clamping block and the fixing block 3, it forms a wrapping fixation on the right side of the photovoltaic module frame, while increasing the fixing points and strengthening the overall load-bearing capacity, thus providing a reliable guarantee for the stable installation of photovoltaic modules.

[0021] exist Figure 1 In the illustrated embodiment, the clamping block system uses clamping block 2 and fixing block 3 as its core, forming a complete fixing system with the photovoltaic module frame 1. The clamping block 2 has a Z-shaped cross-section, a design that provides "top and bottom interlocking with a middle transition": its bottom end can be clamped and fixed in the first fixing groove 4 of the fixing block 3, its top end can be clamped in the top of the photovoltaic module frame 1, and the middle vertical section acts as a force transmission carrier, distributing the force on the photovoltaic module frame 1 to the fixing block 3. The fixing block 3, as the basic load-bearing component, has a first fixing groove 4 and a second fixing groove 5 on each side. The first fixing groove 4 is used to fix the clamping block 2, and the second fixing groove 5 is used to fix the bottom end of the other side of the photovoltaic module frame 1. This layout, where the first fixing groove 4 fixes the clamping block 2 and the second fixing groove 5 fixes the photovoltaic module frame 1, ensures that the photovoltaic module frame 1, clamping block 2, and fixing block 3 form a tightly connected whole, preventing loosening caused by excessive force on a single fixing point. Several fasteners 8 (preferably bolts or screws) pass through the photovoltaic module frame 1, the clamping block system, and the purlin 7, firmly fixing the three together to ensure that the entire installation structure does not shift during long-term outdoor use.

[0022] exist Figure 1 and Figure 2 In the preferred embodiment shown, the height of the first fixing groove 4 is greater than the height of the second fixing groove 5. The pressure block 2, as a transition component connecting the photovoltaic module frame 1 and the fixing block 3, needs its bottom dimension to match the first fixing groove 4 to ensure a secure fixation. Since the bottom edge of the photovoltaic module frame 1 is relatively thin, the lower groove height design of the second fixing groove 5 allows the module frame to fit tightly, preventing the module from shaking due to excessive groove height. Simultaneously, the width of the first fixing groove 4 is also greater than the width of the second fixing groove 5: the pressure block 2 may undergo slight deformation during stress, and the wider groove provides a buffer space, accommodating minor changes in the size of the pressure block 2 and providing lateral restraint through the groove wall, preventing the pressure block 2 from shifting left or right within the first fixing groove 4. This ensures that the pressure block 2 is always in the correct stress position and does not affect the fixing effect on the photovoltaic module frame 1. In addition, the entire briquetting system is made of high-strength steel. The high tensile strength and bending resistance of the steel can effectively resist the impact of external forces such as outdoor wind pressure and snow load, and prevent the briquetting block 2 or fixing block 3 from breaking or deforming due to insufficient material strength, thereby further improving the service life and reliability of the components.

[0023] exist Figure 1In the preferred embodiment shown, the wrapping design of the first fixing groove 4 around the right side of the photovoltaic module frame 1 is the core mechanism for improving wind pressure resistance and reducing the risk of frame detachment. The first fixing groove 4 does not only fix the pressure block 2, but also simultaneously wraps around the right side of the photovoltaic module frame 1 while the pressure block 2 is engaged, forming a "hugging" structure. The groove wall of the fixing groove surrounds the right side of the photovoltaic module frame 1 from the top, bottom, and sides. When the photovoltaic module frame 1 is subjected to strong upward wind pressure, this wrapping structure can generate a downward pulling force: the top of the pressure block 2 is engaged at the top of the photovoltaic module frame 1, the bottom is fixed in the first fixing groove 4, and the middle section is constrained by the fixing groove to limit the upward displacement of the photovoltaic module frame 1, thereby offsetting part of the upward wind pressure force. In traditional installation methods, the photovoltaic module frame 1 is fixed only at the bottom. The upward wind pressure can easily cause the top of the frame to lift and deform, which may lead to the frame separating from the module body in the long run. However, the wrap-around fixing of this utility model distributes the force on the right side of the photovoltaic module frame 1 to multiple directions of the fixing groove, which reduces the local stress on the frame, effectively reduces the deformation of the frame, and fundamentally reduces the risk of frame detachment.

[0024] exist Figure 1 In the preferred embodiment shown, the structural details at the top of the pressure block 2 further enhance the connection stability with the photovoltaic module frame 1. Several protrusions 6 are provided on the contact surface between the top of the pressure block 2 and the top of the photovoltaic module frame 1. These protrusions 6 are evenly distributed on the contact surface. When the top of the pressure block 2 is engaged with the top of the photovoltaic module frame 1, the protrusions 6 will contact the top surface of the photovoltaic module frame 1. Traditional planar contact is prone to reduced friction due to smooth surfaces or dust accumulation, while the protrusions 6 can embed into the fine textures of the top surface of the photovoltaic module frame 1, forming a "point-to-surface" contact mode. The numerous protrusions 6 significantly increase the friction between the two, effectively preventing relative sliding between the photovoltaic module frame 1 and the pressure block 2 even when strong winds cause horizontal pushing or pulling forces on the photovoltaic module frame 1, ensuring that both are always under synchronized force and avoiding loosening due to sliding. Simultaneously, the pressure block 2 is a right-angled Z-shape with a chamfer on the right side of its top. This chamfer design prevents the sharp edge of the pressure block 2 from scratching other components, improving operational safety.

[0025] In actual installation and use, the force transmission and stability performance of this clamping block system are particularly outstanding. During installation, first, the fixing block 3 is placed at the designated position on the purlin 7, and the bottom end of one side of the photovoltaic module frame 1 is inserted into the second fixing groove 5 of the fixing block 3, ensuring that the module frame is tightly fitted to the groove wall; then, the bottom end of the Z-shaped clamping block 2 is inserted into the first fixing groove 4, the top end is aligned with the top end of the photovoltaic module frame 1 and pressed down, so that the top end of the clamping block 2 clamps the module and the protrusion 6 contacts the top surface of the module; finally, the fastener 8 is passed through the photovoltaic module frame 1, clamping block 2, fixing block 3 and purlin 7 in sequence, and the fastener 8 is tightened to complete the installation. At this time, the right end of the photovoltaic module frame 1 is wrapped by the first fixing groove 4, the bottom left end is fixed by the second fixing groove 5, and the top end is clamped by the clamping block 2, forming a stable "three-way fixed" structure.

[0026] When encountering strong winds, the upward wind pressure attempts to lift the top of the photovoltaic module frame 1. The protrusion 6 at the top of the pressure block 2 prevents the module from sliding upward through friction. The bottom of the pressure block 2 cannot move because it is stuck in the first fixing groove 4. The middle section transmits the upward wind force to the fixing block 3. The wrapping structure of the first fixing groove 4 restricts the deformation of the right side of the module from the side, preventing the frame from being blown outward by the wind. The second fixing groove 5 fixes the bottom left side of the pressure block 2, forming a symmetrical force with the first fixing groove 4, preventing the pressure block 2 from tilting due to excessive force on one side. At the same time, the pressure block 2 and the fixing block 3, made of high-strength steel, can withstand the tensile and bending forces brought by the wind pressure without plastic deformation, ensuring the integrity of the entire fixing system.

[0027] exist Figure 1 In the preferred embodiment shown, the multi-faceted snap-fit ​​structure between the photovoltaic module frame 1 and the pressure block 2 is the core of improving stability. The top and left sides of the photovoltaic module frame 1 snap into the corresponding sides of the pressure block 2, while the photovoltaic module frame 1 is encased and snapped between the pressure block 2 and the second fixing groove 5 of the fixing block 3, forming a "three-sided constraint" fixing mode. The Z-shaped structure of the pressure block 2 plays a key role here: its top inner side fits and snaps into the top surface of the photovoltaic module frame 1, its vertical inner side is in close contact with the left side of the photovoltaic module frame 1, its bottom end snaps into the first fixing groove 4 of the fixing block 3, and the bottom right end of the photovoltaic module frame 1 snaps into the second fixing groove 5 of the fixing block 3. This structure firmly restricts the photovoltaic module frame 1 within the "clamping space" formed by the pressure block 2 and the fixing block 3, obtaining constraint from three directions: the top surface, the left side, and the bottom right end. When encountering external forces such as wind pressure and vibration, the top surface locking can prevent the photovoltaic module frame 1 from tilting upwards, the left side locking can limit its horizontal displacement to the left, and the second fixing groove 5 at the bottom right side can prevent it from loosening to the right or downwards. The multi-directional fixing constraints effectively offset the impact of external forces from different directions, preventing the photovoltaic module frame 1 from shifting or shaking. Especially in strong winds, it can significantly reduce the risk of deformation of the module frame due to excessive force on one side.

[0028] exist Figure 1 In the preferred embodiment shown, the layout of the fixing holes on the fixing block 3 provides a basis for multi-point fixing, further enhancing structural stability. The first fixing groove 4 and the second fixing groove 5 are arranged opposite to each other on the fixing block 3, and the photovoltaic module frame 1 and the pressure block 2 are located exactly between the two grooves, forming a relative force-bearing structure. The fixing block 3 has a first fixing hole 9 near the second fixing groove 5. This hole penetrates the upper and lower surfaces of the fixing block 3, corresponding to the fourth fixing hole pre-set near the right end of the photovoltaic module frame 1. When the right-side fixing member 8 (preferably a bolt and nut) passes through the first fixing hole 9 and the fourth fixing hole, the right end of the photovoltaic module frame 1 can be directly fixed to the fixing block 3 and the purlin 7, forming the first fixing point. At the same time, the fixing block 3 has a second fixing hole 10 near the left end. This hole penetrates the first fixing groove 4, and the bottom end of the pressure block 2 has a third fixing hole corresponding to the position of the second fixing hole 10. The left-side fixing member 8 passes through the second fixing hole 10 and the third fixing hole, fixing the pressure block 2 to the fixing block 3 and the purlin 7, forming the second fixing point. This "double fixing hole" layout allows the pressure block 2, fixing block 3, and photovoltaic module frame 1 to be fixed to the purlin 7 by two bolts respectively. Compared with the traditional single bolt fixing method, the number of fixing points is doubled, the overall connection strength is significantly improved, and the local load under the action of external force is effectively dispersed, avoiding loosening or damage caused by the concentration of force at a single fixing point.

[0029] The double-bolt fixing mechanism is key to improving the overall load-bearing capacity. The left-side fixing member 8 passes through the second fixing hole 10 and the third fixing hole, securing the pressure block 2, the fixing block 3, and the purlin 7. The pressure block 2 receives stable support through this bolt, preventing it from detaching from the first fixing groove 4 due to the pulling of the photovoltaic module frame 1 or wind pressure impact. The fixing block 3 is tightly connected to the purlin 7 through this bolt, preventing displacement of the fixing block 3 itself. The right-side fixing member 8 passes through the first fixing hole 9 and the fourth fixing hole, securing the photovoltaic module frame 1, the fixing block 3, and the purlin 7. The right end of the photovoltaic module frame 1 is directly anchored to the purlin 7 through this bolt, reducing dependence on the frame. Even if the frame is subjected to upward wind pressure, the tension of the bolt can directly offset part of the external force, reducing the risk of frame deformation and detachment. The two bolts work together to form a "pinch" fixing effect, making the entire clamping system and the photovoltaic module frame 1 a rigid whole, greatly improving the load-bearing capacity. In long-term load scenarios such as snow cover, the two bolts can evenly distribute the weight of the module, avoiding thread stripping or purlin 7 damage caused by overload of a single bolt. In a vibration environment, the double bolt fixing can also reduce the shaking amplitude of the module and protect the internal circuit and cells from damage.

[0030] In outdoor applications, the performance advantages of this component are particularly prominent. When encountering strong winds, the photovoltaic module frame 1 experiences upward wind pressure. The protrusion 6 at the top of the pressure block 2 enhances the friction with the top surface of the module, preventing the module from sliding upwards. The left-side bolt firmly secures the pressure block 2, and the vertical section of the pressure block 2 provides lateral support to the left side of the module, preventing it from shifting to the left. The right-side bolt directly pulls on the right side of the module, offsetting some of the upward wind pressure. Simultaneously, the second fixing groove 5 provides downward constraint to the bottom right side of the module, preventing it from tilting upwards. The multi-directional constraints and the tension of the two bolts work together to significantly reduce the stress on the module frame, minimizing frame deformation and the risk of frame detachment. When covered by snow, the two bolts evenly distribute the weight of the module and the snow. The connection between the fixing block 3 and the purlin 7 remains secure, and the snap-fit ​​structure between the pressure block 2 and the module will not separate due to weight pressure, ensuring the module remains horizontally installed and does not affect power generation efficiency.

[0031] This invention constructs a highly stable and high-load-bearing photovoltaic module installation system through multi-faceted interlocking of the photovoltaic module frame 1 and the pressure block 2, multi-point fixing hole layout of the fixing block 3, precise positioning of the pressure block 2 and the fixing block 3, and a double-bolt fixing mechanism. This system not only constrains the photovoltaic module from multiple directions, improving its resistance to wind pressure and vibration, but also strengthens the overall connection strength by increasing the number of fixing points, effectively reducing the risk of frame deformation and detachment. Simultaneously, it balances installation efficiency and precision, providing a reliable guarantee for the long-term stable operation of the photovoltaic module.

Claims

1. A mounting block system for photovoltaic modules, comprising a photovoltaic module frame, characterized in that, It includes a pressure block and a fixing block. The pressure block has a Z-shaped cross-section and its bottom end is snapped into the first fixing groove of the fixing block. One side of the photovoltaic module frame is snapped into the pressure block, and the bottom end of the other side is snapped into the second fixing groove of the fixing block. The top of the pressure block is fixed to the top of the photovoltaic module frame, and several fasteners fix the photovoltaic module frame and the pressure block system to the purlin.

2. The photovoltaic module mounting clamping system according to claim 1, characterized in that, The first fixing groove is located on one side of the fixing block, and the second fixing groove is located on the other side of the fixing block.

3. A photovoltaic module mounting clamping system according to claim 1 or 2, characterized in that, The width of the first fixed groove is greater than the width of the second fixed groove.

4. A pressure block system for photovoltaic module installation according to claim 3, characterized in that, The first fixing groove wraps around the right end of the photovoltaic module frame.

5. A pressure block system for photovoltaic module installation according to claim 1, characterized in that, Several protrusions are provided on the contact surface between the top of the pressing block and the frame of the photovoltaic module.

6. A bridging system for photovoltaic module installation according to claim 1 or 5, characterized in that, The top and left sides of the photovoltaic module frame are engaged with the corresponding sides of the pressure block.

7. A pressure block system for photovoltaic module installation according to claim 3, characterized in that, The first fixing groove and the second fixing groove are arranged opposite to each other, and the fixing block has a first fixing hole near the second fixing groove.

8. A pressure block system for photovoltaic module installation according to claim 7, characterized in that, The fixing block has a second fixing hole near the left end, and the second fixing hole passes through the first fixing groove.

9. A pressure block system for photovoltaic module installation according to claim 8, characterized in that, The bottom of the pressure block is provided with a third fixing hole, which is positioned corresponding to the second fixing hole.

10. A photovoltaic module mounting clamping system according to claim 9, characterized in that, The left-side fastener passes through the second and third fixing holes to fix the pressure block and the fixing block to the purlin, while the right-side fastener passes through the first fixing hole to fix the photovoltaic module frame to the purlin.

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