Distributed photovoltaic power generation support foundation and distributed photovoltaic power generation system

Abstract

The present disclosure relates to a distributed photovoltaic power generation support foundation and a distributed photovoltaic power generation system, which are used to solve the technical problems of low integration and poor versatility of the distributed photovoltaic power generation support foundation. The distributed photovoltaic power generation support foundation includes: a box body with an opening provided at the top, a photovoltaic module fixedly connected to the opening, a cable tray fixedly connected in the box body and extending along the length direction of the box body, an internal drainage structure provided on the inner surface of the bottom plate of the box body, and an external drainage structure provided on the outer surface of the bottom plate and in fluid communication with the internal drainage structure.

Description

Technical Field

[0001] The present disclosure relates to the technical field of distributed photovoltaic power generation, and specifically, to a distributed photovoltaic power generation support foundation and a distributed photovoltaic power generation system. Background Art

[0002] With the increasing prominence of global energy tension and environmental climate problems, the development and utilization of renewable energy projects such as distributed photovoltaics have made large-scale progress. The characteristics of distributed photovoltaic power generation projects are small capacity, large quantity, and diverse boundary conditions.

[0003] During the installation process of a distributed photovoltaic power generation system, the support foundation in related technologies has poor versatility, cannot adapt to different roof conditions, and has low integration and complex assembly steps. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a distributed photovoltaic power generation support foundation and a distributed photovoltaic power generation system to solve the technical problems of low integration and poor versatility of the distributed photovoltaic power generation support foundation.

[0005] To achieve the above purpose, the present disclosure provides a distributed photovoltaic power generation support foundation, including: a box body with an opening provided at the top, a photovoltaic module fixedly connected to the opening, a cable tray fixedly connected to the box body and extending along the length direction of the box body, an internal drainage structure provided on the inner surface of the bottom plate of the box body, and an external drainage structure provided on the outer surface of the bottom plate and in fluid communication with the internal drainage structure.

[0006] Optionally, the internal drainage structure includes a first drainage groove and a second drainage groove provided on the inner surface of the bottom plate, the first drainage groove and the second drainage groove intersect, a central drainage hole is provided on the bottom plate corresponding to the intersection of the first drainage groove and the second drainage groove, and the external drainage structure includes a groove provided on the outer surface of the bottom plate, and the groove is in fluid communication with the internal drainage structure through the central drainage hole.

[0007] Optionally, the inner surface of the bottom plate slopes towards the first drainage groove and the second drainage groove, and the first drainage groove and the second drainage groove slope towards the central drainage hole.

[0008] Optionally, through holes for drainage are provided at the bottom of the cable tray, both ends of the cable tray are fixedly connected to two first side walls of the box body opposite to each other along the length direction, and cable laying holes are provided at positions on the first side walls corresponding to the ends of the cable tray.

[0009] Optionally, a connector is provided on one of the two side walls, and a connection seat matching the connector is provided on the other of the two first side walls.

[0010] Optionally, grounding wire mounting holes are provided on two first side walls of the box body that are opposite to each other along the length direction.

[0011] Optionally, the distributed photovoltaic power generation support foundation further includes a plurality of support and fixing members, and the plurality of support and fixing members are fixedly connected to the inner side wall of the box body at intervals along the circumferential direction of the box body. The support and fixing members can support under the photovoltaic module and be fixedly connected to the photovoltaic module.

[0012] Optionally, the support and fixing member includes: a support main body, fixedly connected to the inner side wall of the box body and extending towards the inside of the box body to support the frame of the photovoltaic module, and a buckle, arranged on the upper surface of the support main body to be clamped with the frame of the photovoltaic module.

[0013] Optionally, the distributed photovoltaic power generation support foundation further includes a plurality of fixing blocks, and the plurality of fixing blocks are fixedly connected to the second side wall of the box body extending along the length direction at intervals. The fixing block includes a vertically extending fixing portion and a horizontally extending stopping portion. The fixing portion is fixedly connected to the outer surface of the second side wall, and the stopping portion extends from above the opening towards the inside of the box body to stop above the photovoltaic module. A tooth groove structure is arranged on the lower surface of the stopping portion to engage with the upper surface of the frame of the photovoltaic module.

[0014] On the basis of the above technical solutions, the present disclosure further includes a distributed photovoltaic power generation system, including a photovoltaic module and the distributed photovoltaic power generation system in the above technical solutions.

[0015] Through the above technical solutions, in the distributed photovoltaic power generation support foundation provided by the present disclosure, by integrating a cable tray, an internal drainage structure and an external drainage structure on the box body, the distributed photovoltaic power generation support foundation integrates cable connection functions and drainage functions, thus facilitating the overall modular installation of the distributed photovoltaic power generation support foundation. In addition, the box body can be applied to different roof conditions, increasing the versatility of the distributed photovoltaic power generation support foundation. The distributed photovoltaic power generation system provided by the present disclosure has the same technical effects as the distributed photovoltaic power generation support foundation in the above technical solutions. To avoid unnecessary repetition, it will not be elaborated here.

[0016] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. Brief Description of the Drawings

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the accompanying drawings:

[0018] Figure 1 It is a schematic structural diagram of the foundation of a distributed photovoltaic power generation support in a specific embodiment of the present disclosure;

[0019] Figure 2 It is a schematic structural diagram of a support and fixing member in a specific embodiment of the present disclosure;

[0020] Figure 3 It is a schematic structural diagram of a fixing clamp in a specific embodiment of the present disclosure.

[0021] Explanation of reference numerals in the drawings

[0022] 1 - box body, 12 - opening, 13 - bottom plate, 14 - first side wall, 15 - second side wall,

[0023] 2 - support and fixing member, 21 - support body, 22 - buckle,

[0024] 3 - fixing clamp, 31 - fixing part, 32 - stop part,

[0025] 4 - cable tray, 41 - through hole,

[0026] 5 - internal drainage structure, 51 - first drainage groove, 52 - second drainage groove,

[0027] 6 - central drainage hole,

[0028] 7 - connector,

[0029] 8 - connection seat,

[0030] 9 - earthing wire installation hole,

[0031] 10 - cable laying hole,

[0032] 11 - external drainage structure. Specific embodiments

[0033] The following provides a detailed description of the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to the upper and lower in the normal use state when the distributed photovoltaic power generation support foundation is installed on the roof, and "inner" and "outer" refer to the inner and outer relative to the contour of the corresponding component itself. The terms "first", "second", etc. used in the present disclosure are used to distinguish one element from another, and do not have sequentiality and importance. In addition, when the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] In a specific embodiment of the present disclosure, a distributed photovoltaic power generation support foundation is provided. Referring to Figure 1 as shown, the distributed photovoltaic power generation support foundation may include a box body 1, a cable tray 4, an internal drainage structure 5, and an external drainage structure 11. Among them, the box body 1 may be made of aging-resistant high-strength polyethylene, and an opening 12 may be provided at the top of the box body 1. The photovoltaic module may cover and be fixedly connected to the opening 12. The cable tray 4 may be fixedly connected to the box body 1 and extend along the length direction of the box body 1. The internal drainage structure 5 may be provided on the inner surface of the bottom plate 13 of the box body 1, and the external drainage structure 11 may be provided on the outer surface of the bottom plate 13 and be in fluid communication with the internal drainage structure 5. The accumulated water inside the box body 1 can be discharged through the internal drainage structure 5 and the external drainage structure 11. In addition, for areas with strong winds, precast concrete blocks, sandbags and other counterweights may also be accommodated and installed in the box body 1 to ensure the connection reliability between the distributed photovoltaic power generation support foundation and the roof. The counterweights such as concrete blocks and sandbags in the box body 1 need to avoid structures such as the cable tray 4, the internal drainage structure 5, and the external drainage structure 11.

[0036] Through the above technical solution, in the distributed photovoltaic power generation support foundation provided by the present disclosure, by integrating the cable tray 4, the internal drainage structure 5, and the external drainage structure 11 on the box body 1, the distributed photovoltaic power generation support foundation integrates the cable connection function and the drainage function, thus facilitating the overall modular installation of the distributed photovoltaic power generation support foundation. In addition, the box body 1 can be applicable to different roof conditions, increasing the versatility of the distributed photovoltaic power generation support foundation.

[0037] Referring to Figure 1As shown, the internal drainage structure 5 may include a first drainage groove 51 and a second drainage groove 52 provided on the inner surface of the bottom plate 13. The first drainage groove 51 and the second drainage groove 52 may be arranged crosswise to facilitate the collection of accumulated water at various locations on the bottom plate 13. A central drainage hole 6 may be provided on the bottom plate 13 corresponding to the intersection of the first drainage groove 51 and the second drainage groove 52. The external drainage structure 11 may include a groove provided on the outer surface of the bottom plate 13. The groove is in fluid communication with the internal drainage structure 5 through the central drainage hole 6. The groove extends from the central drainage hole 6 to the edge of the bottom plate 13 to drain the accumulated water to the outside of the box body 1.

[0038] To facilitate the inflow of accumulated water into the internal drainage structure 5, refer to Figure 1 As shown, the inner surface of the bottom plate 13 may slope towards the first drainage groove 51 and the second drainage groove 52 so that the accumulated water at various locations on the bottom plate 13 can flow into the first drainage groove 51 and the second drainage groove 52 under the action of the slope. In addition, to facilitate the drainage of the accumulated water in the first drainage groove 51 and the second drainage groove 52 into the external drainage structure 11, the first drainage groove 51 and the second drainage groove 52 may slope towards the central drainage hole 6 at a slope rate of 1% so that the accumulated water in the first drainage groove 51 and the second drainage groove 52 flows towards the central drainage hole 6 under the action of the slope.

[0039] Refer to Figure 1 As shown, two cable trays 4 arranged in parallel are provided in the box body 1. The two ends of the cable tray 4 are fixedly connected to the two first side walls 14 of the box body 1 opposite to each other in the length direction. Specifically, the cable tray 4 may be integrally formed with the box body 1. The cable tray 4 can not only serve as a channel for laying cables between different support bases, but also enhance the structural stiffness and integrity of the box body 1. To facilitate the laying of cables between different support bases, cable laying holes 10 may be provided at positions on the first side walls 14 corresponding to the ends of the cable tray 4 so that the cables in one support base can pass through the cable laying holes 10 and enter another support base. In addition, a plurality of through holes 41 for drainage may be provided at the bottom of the cable tray 4, and the accumulated water in the cable tray 4 can be drained to the bottom plate 13 through the through holes 41.

[0040] To connect and relatively fix multiple support bases to form a photovoltaic string, refer to Figure 1 As shown, a connector 7 may be provided on one of the two side walls 14, and a connection seat 8 matching the connector 7 may be provided on the other of the two first side walls 14. When multiple support bases are sequentially connected along the length direction of the box body 1, the connector 7 on one support base can be inserted into the connection seat 8 on another support base, thereby realizing the relative fixation between multiple support bases. In the specific embodiment of the present disclosure, the connector 7 may be a snap structure, the connection seat 8 may be a slot structure, or the connector 7 and the connection seat 8 may be a matching tenon and mortise structure.

[0041] For facilitating the wiring of the grounding wires between the photovoltaic strings, as shown in Figure 1 , grounding wire mounting holes 9 may be respectively provided on two opposite first side walls 14 of the box body 1 along the length direction. The grounding wires between adjacent support bases may be connected through the grounding wire mounting holes 9, and the grounding wire in the support base at the end of the photovoltaic string may be connected to the grounding grid of the distributed photovoltaic power generation system through the grounding wire mounting holes 9.

[0042] For enabling the photovoltaic module to be fixedly connected to the box body 1, as shown in Figure 1 and Figure 2 , the distributed photovoltaic power generation support base may further include a plurality of support and fixing members 2. The plurality of support and fixing members 2 may be fixedly connected to the inner side wall of the box body 1 at intervals along the circumferential direction of the box body 1. The support and fixing members 2 can support under the photovoltaic module and be fixedly connected to the photovoltaic module. Through the support and fixing effects of the support and fixing members 2, the fixed connection between the photovoltaic module and the box body 1 can be realized.

[0043] As shown in Figure 1 and Figure 2 , the support and fixing member 2 may include a support main body 21 and a buckle 22. Specifically, the support main body 21 may be fixedly connected to the inner side wall of the box body 1 and extend towards the inside of the box body 1. The support main body 21 may be configured as a boss-like structure integrally formed with the box body 1. When the photovoltaic module covers the opening 12, the frame of the photovoltaic module can be supported on the support main body 21. The buckle 22 may be provided on the upper surface of the support main body 21. When the frame of the photovoltaic module is supported on the support main body 21, the buckle 22 can be clamped with the lower edge of the frame of the photovoltaic module to realize the fixation of the photovoltaic module.

[0044] For further improving the connection reliability between the photovoltaic module and the box body 1, as shown in Figure 1 and Figure 3 , the distributed photovoltaic power generation support base may further include a plurality of fixing blocks 3. The plurality of fixing blocks 3 may be fixedly connected to the second side wall 15 extending along the length direction of the box body 1 at intervals. The fixing block 3 may include a vertically extending fixing portion 31 and a horizontally extending stopping portion 32. The fixing portion 31 may be detachably connected to the outer surface of the second side wall 15 through bolts, so as to facilitate the disassembly and assembly of the fixing block 3 when overhauling and replacing the photovoltaic module. The stopping portion 32 may extend from above the opening 12 towards the inside of the box body 1 to stop above the photovoltaic module. A tooth groove structure may be provided on the lower surface of the stopping portion 32 to engage with the upper surface of the frame of the photovoltaic module, thereby increasing the friction force between the stopping portion 32 and the photovoltaic module.

[0045] By providing a support and fixing member 2 below the photovoltaic module and a fixing pressing block 3 above the photovoltaic module, the photovoltaic module can be fixedly connected to the buckle 22 below and stopped by the stop portion 32 above, so as to improve the connection reliability between the photovoltaic module and the box body 1.

[0046] On the basis of the above technical solution, the present disclosure further includes a distributed photovoltaic power generation system, including a photovoltaic module and the distributed photovoltaic power generation system in the above technical solution.

[0047] Through the above technical solution, the distributed photovoltaic power generation system provided by the present disclosure has the same technical effects as the distributed photovoltaic power generation support in the above technical solution. To avoid unnecessary repetition, it will not be elaborated here.

[0048] The assembly of the distributed photovoltaic power generation system on the roof includes the following assembly steps:

[0049] Step 1: Position the box body 1 of the distributed photovoltaic power generation support at a preset position on the roof, and place a counterweight in the box body 1;

[0050] Step 2: Place the cable in the cable tray 4 for plug installation, lead the cable out through the cable laying hole 10, fix the grounding wire on the back of the photovoltaic module with bolts, and lead it out through the grounding wire installation hole 9;

[0051] Step 3: Cover the photovoltaic module at the opening 12, so that the frame of the photovoltaic module is placed on the support body 21 of the support and fixing member 2 and is snap-connected to the buckle 22;

[0052] Step 4: Install the fixing portion 31 of the fixing pressing block 3 on the side wall of the box body 1 through bolts, so that the stop portion 32 stops above the photovoltaic module;

[0053] When the distributed photovoltaic power generation system includes multiple distributed photovoltaic power generation supports, the assembly steps include Step 5: Insert the connector 7 of one distributed photovoltaic power generation support into the connector seat 8 of the adjacent distributed photovoltaic power generation support.

[0054] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0055] In addition, it should be noted that in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not further describe various possible combination methods.

[0056] In addition, any combination can be made among various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A distributed photovoltaic power generation support foundation, characterized in that Comprising: A box body with an opening provided at the top, and a photovoltaic module is fixedly connected to the opening. A cable tray fixedly connected in the box body and extending along the length direction of the box body. An internal drainage structure provided on the inner surface of the bottom plate of the box body, and An external drainage structure provided on the outer surface of the bottom plate and in fluid communication with the internal drainage structure.

2. The distributed photovoltaic power generation support foundation according to claim 1, characterized in that The internal drainage structure includes a first drainage groove and a second drainage groove provided on the inner surface of the bottom plate. The first drainage groove and the second drainage groove intersect, and a central drainage hole is provided on the bottom plate corresponding to the intersection of the first drainage groove and the second drainage groove. The external drainage structure includes a groove provided on the outer surface of the bottom plate. The groove is in fluid communication with the internal drainage structure through the central drainage hole.

3. The distributed photovoltaic power generation support foundation according to claim 2, characterized in that The inner surface of the bottom plate slopes towards the first drainage groove and the second drainage groove, and the first drainage groove and the second drainage groove slope towards the central drainage hole.

4. The distributed photovoltaic power generation support foundation according to claim 1, characterized in that Through holes for drainage are provided at the bottom of the cable tray. Both ends of the cable tray are fixedly connected to two first side walls of the box body that are opposite to each other along the length direction. Cable laying holes are provided at positions on the first side walls corresponding to the ends of the cable tray.

5. The distributed photovoltaic power generation support foundation according to claim 1, characterized in that A connector is provided on one of the two first side walls, and a connection seat matching the connector is provided on the other of the two first side walls.

6. The distributed photovoltaic power generation support foundation according to claim 5, characterized in that Ground wire installation holes are provided on two first side walls of the box body that are opposite to each other along the length direction.

7. The distributed photovoltaic power generation support foundation according to claim 1, characterized in that The distributed photovoltaic power generation support foundation further includes a plurality of support and fixing members. The plurality of support and fixing members are fixedly connected to the inner side wall of the box body at intervals along the circumferential direction of the box body. The support and fixing members can support under the photovoltaic module and be fixedly connected to the photovoltaic module.

8. The distributed photovoltaic power generation support foundation according to claim 7, characterized in that The support and fixing member includes: A support main body fixedly connected to the inner side wall of the box body and extending towards the inside of the box body to support the frame of the photovoltaic module, and A buckle provided on the upper surface of the support main body to be snap-connected with the frame of the photovoltaic module.

9. The distributed photovoltaic power generation support foundation according to claim 1, characterized in that It further includes a plurality of fixing blocks. The plurality of fixing blocks are fixedly connected to the second side wall of the box body extending along the length direction at intervals. The fixing block includes a vertically extending fixing portion and a horizontally extending stopping portion. The fixing portion is fixedly connected to the outer surface of the second side wall, and the stopping portion extends from above the opening towards the inside of the box body to stop above the photovoltaic module. Tooth groove structures are provided on the lower surface of the stopping portion to engage with the upper surface of the frame of the photovoltaic module.

10. A distributed photovoltaic power generation system, characterized in that Comprising a photovoltaic module and the distributed photovoltaic power generation support foundation according to any one of claims 1 to 9.

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