A highly pre-assembled photovoltaic ballast system

Abstract

This invention provides a highly pre-assembled photovoltaic ballast system, including a ballast base beam, a front column, and a rear column. The ballast base beam includes a base plate, a first side plate and a second side plate disposed opposite each other on the base plate, and an assembly platform fixed between the first side plate and the second side plate. The front column and the rear column are pre-installed on the assembly platform. This invention achieves a high degree of modularity and pre-assembly of the system through the pre-installation design of the ballast base beam, front column, and rear column, significantly reducing on-site construction procedures and time.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, specifically to a highly pre-assembled photovoltaic ballast system. Background Technology

[0002] Distributed photovoltaic (PV) systems are increasingly being used on urban building rooftops and in industrial and commercial buildings. These locations have varying roof structures and load-bearing capacities, and many buildings cannot withstand the weight of traditional large ballast loads. Portable ballast loads can flexibly adjust their weight and location based on the actual load-bearing capacity of the roof and the layout requirements of the PV system, achieving safe and efficient installation. For example, in rooftop PV renovation projects in older urban residential areas, where roofs are often lightweight structures, traditional ballast methods may damage the roof, while portable PV ballast loads can complete the installation of the PV system without damaging the roof structure. As portable PV ballast loads gain wider acceptance, customers are paying increasing attention to construction efficiency and cost. Traditional design solutions cannot meet the requirements of modularization and convenient pre-installation of the entire product, and suffer from long production cycles and high costs.

[0003] In view of this, this case involves in-depth research into the aforementioned issues, which led to the formation of this case. Summary of the Invention

[0004] This invention aims to solve the technical problems existing in the photovoltaic ballast system in the prior art by providing a highly pre-assembled photovoltaic ballast system. Through the pre-installation design of the ballast base beam, front column and rear column, the system achieves a high degree of modularity and pre-assembly, significantly reducing on-site construction procedures and time.

[0005] This utility model is implemented as follows: a highly pre-assembled photovoltaic ballast system includes a ballast base beam, a front column, and a rear column; the ballast base beam includes a base plate, a first side plate and a second side plate disposed opposite to each other on the base plate, and an assembly platform fixed between the first side plate and the second side plate; the front column is pre-installed on the assembly platform; the rear column is pre-installed on the assembly platform.

[0006] Furthermore, each of the first and second side plates has a first bolt hole at one end; the front column has a second bolt hole, and the first locking unit passes through the first and second bolt holes to lock the front column between the first and second side plates; each of the first and second side plates has a third bolt hole, and the rear column has a fourth bolt hole, and the second locking unit passes through the third and fourth bolt holes to lock the rear column between the first and second side plates.

[0007] Furthermore, both the first and second side plates are provided with fifth bolt holes, which are spaced apart from the fourth bolt holes; the second locking unit passes through the third and fifth bolt holes to lock the rear column between the first and second side plates.

[0008] Furthermore, the front column sequentially includes a splicing part, a long side pressing part, and a short side pressing part; the splicing part, the long side pressing part, and the short side pressing part are integrally formed.

[0009] Furthermore, the long side pressure part is laterally hollow and has a first T-shaped groove formed on its top surface, and the second bolt hole is opened in the long side pressure part; the short side pressure part is laterally hollow and has a second T-shaped groove formed on its top surface; the splicing part is laterally hollow and includes a guide groove and a bolt groove, the guide groove being inclined and connected to the bolt groove.

[0010] Furthermore, the rear column includes a base column and an extension column; the fourth bolt hole is opened in the base column, and the top surface of the base column forms a third T-shaped slot; the extension column is detachably installed on the top surface of the base column, the top surface of the extension column forms a fourth T-shaped slot, and the bottom surface of the extension column is fixed with a first T-shaped block for cooperating with the third T-shaped slot.

[0011] Furthermore, the side of the foundation column is provided with a fixing slot, and the side of the heightened column extends downward to form a fixing hook plate that cooperates with the fixing slot.

[0012] Furthermore, the foundation column also has a first through hole, the fixing hook plate has a second through hole, and the fixing hook plate and the foundation column are locked together by a third locking unit.

[0013] Furthermore, cable slots are also provided on the side of the foundation column.

[0014] Furthermore, it also includes a shared middle-side pressure assembly that cooperates with the front and rear columns; the shared middle-side pressure assembly includes a base clamping block and a shared middle-side pressure block that cooperates with the base clamping block to press the long and short sides of the photovoltaic module together; the base clamping block includes a second T-shaped clamping block located at the bottom; the shared middle-side pressure block includes a pressure plate, a first vertical plate, and a second vertical plate, the first vertical plate and the second vertical plate are both fixedly connected to the bottom surface of the pressure plate and are arranged opposite to each other; the shared middle-side pressure block and the base clamping block are connected by a fourth locking unit.

[0015] The advantages of this utility model are as follows: The photovoltaic ballast system of this utility model achieves a high degree of modularity and pre-assembly of the system through the pre-installation design of the ballast bottom beam, front column and rear column, which significantly reduces on-site construction procedures and time; the integrated structure of the assembly platform of the ballast bottom beam simplifies the installation benchmark, ensures the rapid positioning and fixing of the front column and rear column, reduces the cost of manual adjustment, and improves construction efficiency, which is especially suitable for scenarios with limited roof load-bearing capacity. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a structural schematic diagram of the highly pre-assembled photovoltaic ballast system in this utility model.

[0018] Figure 2 This is a schematic diagram of the photovoltaic ballast system in this utility model and its deployment on site.

[0019] Figure 3 This is a schematic diagram of the ballast bottom beam in this utility model.

[0020] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0021] Figure 5 This is a front view of the front column in this utility model.

[0022] Figure 6 This is a schematic diagram of the front column in this utility model.

[0023] Figure 7 yes Figure 1 Enlarged view of point A in the middle.

[0024] Figure 8 This is a schematic diagram of the connection between the rear column and the ballast bottom beam in this utility model.

[0025] Figure 9 This is a schematic diagram of the structure of the foundation column in this utility model.

[0026] Figure 10 This is a schematic diagram of the heightened column in this utility model.

[0027] Figure 11 This is a schematic diagram of a 10° photovoltaic ballast system with a single-slope lateral pressure on the short side.

[0028] Figure 12 This is a schematic diagram of a 15° photovoltaic ballast system with a single-slope lateral pressure on the short side.

[0029] Figure 13 This is a schematic diagram of a 10° photovoltaic ballast system with lateral pressure on the long side of a single slope.

[0030] Figure 14 This is a schematic diagram of a 15° photovoltaic ballast system with a single-slope lateral pressure on the long side.

[0031] Figure 15 This is a schematic diagram of a 10° photovoltaic ballast system with a double-slope lateral pressure on the short side.

[0032] Figure 16 This is a schematic diagram of a 15° photovoltaic ballast system with double-slope lateral pressure on the short side.

[0033] Figure 17 This is a schematic diagram of a 10° photovoltaic ballast system with double-slope side pressure on the long side.

[0034] Figure 18 This is a schematic diagram of a 15° photovoltaic ballast system with double-slope side pressure on the long side.

[0035] Ballast bottom beam 1, bottom plate 11, first side plate 12, second side plate 13, assembly platform 14, first bolt hole 15, third bolt hole 16, fifth bolt hole 17.

[0036] Front column 2, splicing part 21, guide groove 211, bolt groove 212, long side pressure part 22, second bolt hole 221, first T-shaped slot 222, short side pressure part 23, second T-shaped slot 231, upright plate 24, first conductive spike 25, second conductive spike 26.

[0037] Rear column 3, foundation column 31, fourth bolt hole 311, third T-shaped slot 312, fixing slot 313, first through hole 314, cable slot 315, heightening column 32, fourth T-shaped slot 321, first T-shaped block 322, fixing hook plate 323, second through hole 324.

[0038] First locking unit 41, second locking unit 42, third locking unit 43, and fourth locking unit 44.

[0039] Basic locking block 51, second T-shaped locking block 511, common middle side pressure block 52, pressure plate 521, first vertical plate 522, second vertical plate 523.

[0040] Photovoltaic module 6, long side 61, short side 62.

[0041] 8. Rubber pads. Detailed Implementation

[0042] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] In the prior art, photovoltaic module 6 typically includes a long side 61 and a short side 62.

[0044] Please see Figures 1 to 18 As shown, this utility model provides a highly pre-assembled photovoltaic ballast system. For example, see attached... Figure 1 As shown, a 15° photovoltaic ballast system with a double-slope side pressure on the short side includes a ballast base beam 1, a front column 2, and a rear column 3. The ballast base beam 1 includes a base plate 11, a first side plate 12 and a second side plate 13 disposed opposite to each other on the base plate 11, and an assembly platform 14 fixed between the first side plate 12 and the second side plate 13. The front column 2 is pre-installed on the assembly platform 14; the rear column 3 is pre-installed on the assembly platform 14. (See attached diagram) Figure 2 As shown, all bottom beams, front columns 2, and rear columns 3 can be pre-assembled before leaving the factory. On-site construction only requires unfolding and locking the rear columns 3.

[0045] The photovoltaic ballast system of this utility model achieves a high degree of modularity and pre-assembly of the photovoltaic ballast system through the pre-installation design of the ballast base beam 1, front column 2 and rear column 3, which significantly reduces on-site construction procedures and time. The integrated structure of the assembly platform 14 of the ballast base beam 1 simplifies the installation benchmark, ensures the rapid positioning and fixing of the front column 2 and rear column 3, reduces manual adjustment costs, and improves construction efficiency, which is especially suitable for scenarios with limited roof load-bearing capacity.

[0046] In this utility model, as shown in the appendix Figure 3 As shown, a first bolt hole 15 is provided at one end of both the first side plate 12 and the second side plate 13; as shown in the attached figure. Figure 6 and 7 As shown, the front column 2 has a second bolt hole 221. The first locking unit 41 passes through the first bolt hole 15 and the second bolt hole 221 to lock the front column 2 between the first side plate 12 and the second side plate 13. The pre-designed first bolt hole 15 and the second bolt hole 221, combined with the first locking unit 41, achieve precise alignment and locking between the front column 2 and the ballast bottom beam 1.

[0047] In this utility model, as shown in the appendix Figure 3 As shown, both the first side plate 12 and the second side plate 13 have third bolt holes 16, as per the attached diagram. Figure 8 and 9 As shown, the rear column 3 has a fourth bolt hole 311; as attached Figure 11 , 12 As shown in Figures 15 and 16, when the short side 62 of the shared middle-side pressure combination is used, the second locking unit 42 passes through the third bolt hole 16 and the fourth bolt hole 311 to lock the rear column 3 between the first side plate 12 and the second side plate 13. The cooperation between the third bolt hole 16 and the fourth bolt hole 311 further ensures the stable connection of the rear column 3, avoids on-site drilling errors, and improves the overall structural assembly accuracy and wind load resistance.

[0048] In this utility model, as shown in the appendix Figure 3 As shown, both the first side plate 12 and the second side plate 13 have fifth bolt holes 17, which are spaced apart from the third bolt holes 16; as shown in the attached figure. Figure 13 , 14 As shown in Figures 17 and 18, when the long side 61 of the shared middle-side pressure combination is used, the second locking unit 42 passes through the fourth bolt hole 311 and the fifth bolt hole 17 to lock the rear column 3 between the first side plate 12 and the second side plate 13. The fifth bolt hole 17 and the third bolt hole 16 of the first side plate 12 and the second side plate 13 are spaced apart, allowing the installation angle or height of the rear column 3 to be flexibly adjusted by switching the locking position, adapting to the tilt angle requirements of different specifications of photovoltaic modules (such as 10° or 15°), adapting to the side pressure requirements of the long or short side, and enhancing the system's scenario adaptability and scalability.

[0049] In this utility model, as shown in the appendix Figure 5 and 6 As shown, the front column 2 sequentially includes a splicing part 21, a long-side pressing part 22, and a short-side pressing part 23; the splicing part 21, the long-side pressing part 22, and the short-side pressing part 23 are integrally formed. The integral formation of the splicing part 21, the long-side pressing part 22, and the short-side pressing part 23 of the front column 2 eliminates the risk of stress concentration associated with separate splicing, improving structural strength; it also supports a universal locking function for the long side 61 and the short side 62, is compatible with the installation of multi-size photovoltaic modules 6, and reduces the variety of accessories and the complexity of inventory management. The top surface of the front column 2 is provided with a limiting plate 24 for the photovoltaic module 6 and a first conductive spike 25; the side surface of the front column 2 is provided with a second conductive spike 26.

[0050] In this invention, the long-side pressure portion 22 is laterally hollow and has a first T-shaped groove 222 formed on its top surface, with the second bolt hole 221 located in the long-side pressure portion 22; the short-side pressure portion 23 is laterally hollow and has a second T-shaped groove 231 formed on its top surface; the splicing portion 21 is laterally hollow and includes a guide groove 211 and a bolt groove 212, with the guide groove 211 inclined and connected to the bolt groove 212. The hollow design of the long-side pressure portion 22 and the short-side pressure portion 23 reduces weight and cost; the standardized interface design of the first T-shaped groove 222 and the second T-shaped groove 231 simplifies the installation of shared side-pressure combinations; the guide groove 211 of the splicing portion 21 connects to the bolt groove 212, guiding the bolts to slide in automatically, enabling rapid splicing of adjacent modules, suitable for efficient installation on large-span roofs.

[0051] In this utility model, as shown in the appendix Figure 8-10As shown, the rear column 3 includes a base column 31 and an extension column 32. A fourth bolt hole 311 is formed in the base column 31, and a third T-shaped slot 312 is formed on the top surface of the base column 31. The extension column 32 is detachably installed on the top surface of the base column 31, and a fourth T-shaped slot 321 is formed on the top surface of the extension column 32. A first T-shaped locking block 322 is fixed on the bottom surface of the extension column 32 to cooperate with the third T-shaped slot 312. The detachable design of the base column 31 and the extension column 32, through the cooperation of the T-shaped slot and the T-shaped locking block, allows for rapid switching of the tilt angle (10° or 15°), eliminating the need to replace the entire support frame, reducing costs, and improving the system's adjustment flexibility.

[0052] In this invention, the side of the foundation column 31 is provided with a fixing groove 313, and the side of the heightened column 32 extends downward to form a fixing hook plate 323 that cooperates with the fixing groove 313. The mechanical interlocking design of the fixing groove 313 and the fixing hook plate 323 enhances the connection stability between the foundation column 31 and the heightened column 32, prevents displacement caused by wind load or vibration, and ensures the structural safety after the tilt angle is adjusted.

[0053] In this invention, the foundation column 31 also has a first through hole 314, and the fixing hook plate 323 has a second through hole 324. The fixing hook plate 323 and the foundation column 31 are locked together by a third locking unit 43. The first through hole 314 and the second through hole 324 are reinforcedly connected by the third locking unit 43, which further improves the connection stability between the foundation column 31 and the heightening column 32, avoids loosening of the connection due to long-term load, and extends the service life of the system.

[0054] In this invention, a cable slot 315 is also provided on the side of the foundation column 31. The cable slot 315 is integrated into the side of the foundation column 31 to provide a fixed channel for the photovoltaic system cables, avoid cable clutter or friction damage, simplify the wiring and maintenance process, and improve the overall safety and aesthetics of the system.

[0055] In this utility model, as shown in the appendix Figure 7As shown, it also includes a shared center-side pressing assembly that cooperates with the front column 2 and the rear column 3; the shared center-side pressing assembly includes a base clamping block 51 and a shared center-side pressing block 52 that cooperates with the base clamping block 51 to press the long and short sides of the photovoltaic module; the base clamping block 51 includes a second T-shaped clamping block 511 located at the bottom; the shared center-side pressing block 52 includes a pressure plate 521, a first vertical plate 522, and a second vertical plate 523, the first vertical plate 522 and the second vertical plate 523 are both fixedly connected to the bottom surface of the pressure plate 521 and are arranged opposite to each other; the shared center-side pressing block 52 and the base clamping block 51 are connected by a fourth locking unit 44. The shared center-side pressing assembly achieves universal pressing of the long and short sides of the photovoltaic module through the modular design of the base clamping block 51 and the shared center-side pressing block 52; the second T-shaped clamping block 511 quickly engages with the T-shaped slot, and combined with the stable locking of the fourth locking unit 44, it simplifies the installation steps and ensures uniform distribution of pressing force, reducing the risk of frame deformation.

[0056] In this utility model, as shown in the appendix Figure 7 As shown, it also includes rubber pads 8 installed on the bottom surface of the ballast beam 1. The rubber pads 8 tightly engage with the flanges of the base plate 11 to prevent the ballast beam 1 from sliding or shifting, while also buffering vibration and noise and protecting the roof structure. The rubber material has strong weather resistance, adapts to temperature differences and deformation, extends the service life of the system, and requires no adhesive during installation, making it environmentally friendly and easy to replace.

[0057] In this utility model, as shown in the appendix Figure 11-14 As shown, in a single-slope photovoltaic system, adjacent ballast bottom beams 1 are connected via front columns 2. (See attached diagram.) Figure 15-18 As shown, when it is a dual-slope photovoltaic system, the adjacent ballast bottom beams 1 are connected by bottom beam connectors.

[0058] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A highly pre-assembled photovoltaic ballast system, characterized by: It includes a ballast bottom beam, a front column, and a rear column; the ballast bottom beam includes a bottom plate, a first side plate and a second side plate disposed opposite to each other on the bottom plate, and an assembly platform fixed between the first side plate and the second side plate; the front column is pre-installed on the assembly platform; the rear column is pre-installed on the assembly platform.

2. The highly pre-assembled photovoltaic ballast system of claim 1, wherein: Each of the first and second side plates has a first bolt hole at one end; the front column has a second bolt hole, and the first locking unit passes through the first and second bolt holes to lock the front column between the first and second side plates. The first side plate and the second side plate are both provided with a third bolt hole, and the rear column is provided with a fourth bolt hole. The second locking unit passes through the third bolt hole and the fourth bolt hole to lock the rear column between the first side plate and the second side plate.

3. The highly pre-assembled photovoltaic ballast system of claim 2, wherein: Both the first and second side plates have fifth bolt holes, which are spaced apart from the fourth bolt holes; the second locking unit passes through the third and fifth bolt holes to lock the rear column between the first and second side plates.

4. The highly pre-assembled photovoltaic ballast system of claim 3, wherein: The front column includes, in sequence, a splicing part, a long side pressing part, and a short side pressing part; the splicing part, the long side pressing part, and the short side pressing part are integrally formed.

5. The highly pre-assembled photovoltaic ballast system of claim 4, wherein: The long side pressure part is laterally hollow and has a first T-shaped groove formed on its top surface, and the second bolt hole is opened in the long side pressure part; the short side pressure part is laterally hollow and has a second T-shaped groove formed on its top surface; the splicing part is laterally hollow and includes a guide groove and a bolt groove, the guide groove being inclined and connected to the bolt groove.

6. The highly pre-assembled photovoltaic ballast system of claim 5, wherein: The rear column includes a base column and an extension column; the fourth bolt hole is opened in the base column, and the top surface of the base column forms a third T-shaped slot; the extension column is detachably installed on the top surface of the base column, the top surface of the extension column forms a fourth T-shaped slot, and the bottom surface of the extension column is fixed with a first T-shaped block for cooperating with the third T-shaped slot.

7. The highly pre-assembled photovoltaic ballast system of claim 6, wherein: The side of the basic column is provided with a fixing slot, and the side of the heightened column extends downward to form a fixing hook plate that cooperates with the fixing slot.

8. The highly pre-assembled photovoltaic ballast system of claim 7, wherein: The foundation column also has a first through hole, and the fixing hook plate has a second through hole. The fixing hook plate and the foundation column are locked together by a third locking unit.

9. The highly pre-assembled photovoltaic ballast system of claim 8, wherein: The side of the foundation column is also provided with a cable slot.

10. The highly pre-assembled photovoltaic ballast system as described in claim 1, characterized in that: It also includes a shared middle-side pressure assembly that cooperates with the front and rear columns; the shared middle-side pressure assembly includes a base clamping block and a shared middle-side pressure block that cooperates with the base clamping block to press the long and short sides of the photovoltaic module; the base clamping block includes a second T-shaped clamping block located at the bottom; the shared middle-side pressure block includes a pressure plate, a first vertical plate, and a second vertical plate, the first vertical plate and the second vertical plate are both fixedly connected to the bottom surface of the pressure plate and are arranged opposite to each other; the shared middle-side pressure block and the base clamping block are connected by a fourth locking unit.

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