WO2025118729A1 - Distributed photovoltaic power generation mount foundation and distributed photovoltaic power generation system - Google Patents

Abstract

A distributed photovoltaic power generation mount foundation and a distributed photovoltaic power generation system. The distributed photovoltaic power generation mount foundation comprises: a box body, wherein an opening is formed in the top of the box body, and a photovoltaic module is fixedly connected to the opening; a cable tray, fixedly connected to the box body and extending in the length direction of the box body; an internal drainage structure, arranged on the inner side surface of a bottom plate of the box body; and an external drainage structure, arranged on the outer side surface of the bottom plate and being in fluid communication with the internal drainage structure.

Description

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

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed with the Chinese Patent Office on December 5, 2023, with application number 202311659207.5 and titled “Distributed Photovoltaic Power Generation Bracket Foundation and Distributed Photovoltaic Power Generation System”, the entire contents of which are incorporated by reference in this disclosure.

Technical Field

The present disclosure relates to the technical field of distributed photovoltaic power generation, and in particular, to a distributed photovoltaic power generation support foundation and a distributed photovoltaic power generation system.

Background Art

As global energy shortages and environmental and climate issues become increasingly prominent, the development and utilization of renewable energy projects such as distributed photovoltaics have made large-scale progress. Distributed photovoltaic power generation projects are characterized by small capacity, large number, and different boundary conditions.

During the installation of distributed photovoltaic power generation systems, the support foundations in related technologies have poor versatility, cannot adapt to different roof conditions, have low integration, and have complicated assembly steps.

Summary of the invention

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.

In order to achieve the above-mentioned objectives, the present disclosure provides a distributed photovoltaic power generation bracket foundation, including: a box body, an opening is set on the top, and the photovoltaic component is fixedly connected to the opening; a cable tray is fixedly connected in the box body and extends along the length direction of the box body; an internal drainage structure is arranged on the inner surface of the bottom plate of the box body; and an external drainage structure is arranged on the outer surface of the bottom plate and is fluidically connected to the internal drainage structure.

Optionally, the internal drainage structure includes a first drainage groove and a second drainage groove arranged on the inner surface of the base plate, the first drainage groove and the second drainage groove intersect, and a central drainage hole is arranged on the base plate corresponding to the intersection of the first drainage groove and the second drainage groove, and the external drainage structure includes a groove arranged on the outer surface of the base plate, and the groove is connected to the internal drainage structure fluid through the central drainage hole.

Optionally, the inner surface of the bottom plate is sloped toward the first drainage groove and the second drainage groove, and the first drainage groove and the second drainage groove are sloped toward the central drainage hole.

Optionally, a through hole for drainage is provided at the bottom of the cable tray, and 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 a cable laying hole is provided on the first side wall at a position corresponding to the end of the cable tray.

Optionally, a connector is provided on one of two first side walls of the box body that are opposite to each other along the length direction, and a connector seat that matches the connector is provided on the other of the two first side walls.

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

Optionally, the distributed photovoltaic power generation bracket foundation also includes a plurality of supporting and fixing components, which are fixedly connected to the inner wall of the box body at intervals along the circumference of the box body, and the supporting and fixing components can be supported below the photovoltaic component and fixedly connected to the photovoltaic component.

Optionally, the supporting and fixing member includes: a supporting body fixedly connected to the inner wall of the box body and extending toward the inside of the box body to support the frame of the photovoltaic component, and a buckle arranged on the upper surface of the supporting body to engage with the frame of the photovoltaic component.

Optionally, the distributed photovoltaic power generation support foundation also includes a plurality of fixed pressure blocks, which are fixedly connected to the second side wall of the box body extending along the length direction at intervals, and the fixed pressure blocks include a vertically extending fixing portion and a horizontally extending stopping portion, and the fixing portion is fixedly connected to the outer surface of the second side wall, and the stopping portion extends from the top of the opening toward the inside of the box body to stop above the photovoltaic component, and the lower surface of the stopping portion is provided with a tooth groove structure to engage with the upper surface of the frame of the photovoltaic component.

On the basis of the above technical solution, the present disclosure also includes a distributed photovoltaic power generation system, including photovoltaic components and the distributed photovoltaic power generation system in the above technical solution.

Through the above technical solution, in the distributed photovoltaic power generation support foundation provided by the present disclosure, by integrating the cable bridge, internal drainage structure and external drainage structure on the box body, the distributed photovoltaic power generation support foundation integrates the cable connection function and the drainage function, thereby 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, which increases 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 effect as the distributed photovoltaic power generation support foundation in the above technical solution. In order to avoid unnecessary repetition, it will not be repeated here.

Other features and advantages of the present disclosure will be described in detail in the following detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

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 of the present disclosure. In the accompanying drawings:

FIG1 is a schematic structural diagram of a distributed photovoltaic power generation support foundation in a specific embodiment of the present disclosure;

FIG2 is a schematic structural diagram of a supporting and fixing member in a specific embodiment of the present disclosure;

FIG. 3 is a schematic diagram of the structure of a fixed pressing block in a specific embodiment of the present disclosure.

Description of Reference Numerals

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

2-support fixing member, 21-support body, 22-buckle,

3-fixed pressure block, 31-fixed part, 32-stop part,

4-cable tray, 41-through hole,

5-internal drainage structure, 51-first drainage groove, 52-second drainage groove,

6-Center drainage hole,

7-Connector,

8-Connection seat,

9- Ground wire installation hole,

10- Cable laying hole,

11-External drainage structure.

Embodiments of the present invention

The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

In this disclosure, unless otherwise stated, directional words such as "upper and lower" generally refer to the upper and lower parts of the distributed photovoltaic power generation support foundation when it is installed on the roof in normal use, and "inside and outside" refer to the inside and outside relative to the contour of the corresponding component itself. The terms "first", "second", etc. used in this disclosure are to distinguish one element from another and do not have order and importance. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

In a specific embodiment of the present disclosure, a distributed photovoltaic power generation support foundation is provided. As shown in FIG1 , the distributed photovoltaic power generation support foundation may include a box 1, a cable tray 4, an internal drainage structure 5, and an external drainage structure 11, wherein the box 1 may be made of aging-resistant high-strength polyethylene, and an opening 12 may be provided on the top of the box 1, the photovoltaic assembly may cover and be fixedly connected to the opening 12, the cable tray 4 may be fixedly connected to the box 1, and extend along the length direction of the box 1, the internal drainage structure 5 may be provided on the inner surface of the bottom plate 13 of the box 1, the external drainage structure 11 may be provided on the outer surface of the bottom plate 13, and is in fluid communication with the internal drainage structure 5, and the accumulated water inside the box 1 may be discharged through the internal drainage structure 5 and the external drainage structure 11. In addition, for areas with strong winds, the box 1 may also accommodate and install prefabricated concrete blocks, sandbags and other counterweights to ensure the reliability of the connection between the distributed photovoltaic power generation support foundation and the roof. Concrete blocks, sandbags and other counterweights need to avoid structures such as cable trays 4, internal drainage structures 5 and external drainage structures 11 in the box 1.

Through the above technical scheme, in the distributed photovoltaic power generation support foundation provided by the present invention, 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, thereby facilitating the overall modular installation of the distributed photovoltaic power generation support foundation. In addition, the box body 1 can be adapted to different roof conditions, thereby increasing the versatility of the distributed photovoltaic power generation support foundation.

As shown in reference figure 1, the internal drainage structure 5 may include a first drainage groove 51 and a second drainage groove 52 arranged on the inner surface of the bottom plate 13. The first drainage groove 51 and the second drainage groove 52 may be cross-arranged to collect accumulated water at various locations on the bottom plate 13. A central drainage hole 6 may be arranged 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 arranged on the outer surface of the bottom plate 13. The groove is fluidically connected to 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 discharge the accumulated water to the outside of the box body 1.

In order to facilitate the accumulated water to flow into the internal drainage structure 5, as shown in Figure 1, the inner surface of the bottom plate 13 can be sloped toward the first drainage groove 51 and the second drainage groove 52, so that the accumulated water at various places of 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, in order to facilitate the accumulated water in the first drainage groove 51 and the second drainage groove 52 to be discharged into the external drainage structure 11, the first drainage groove 51 and the second drainage groove 52 can be sloped toward the central drainage hole 6 with a slope of 1%, so that the water in the first drainage groove 51 and the second drainage groove 52 flows to the central drainage hole 6 under the action of the slope.

As shown in reference figure 1, two parallel cable trays 4 are provided in the box body 1, and 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 along the length direction. Specifically, the cable tray 4 can 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 rigidity and integrity of the box body 1. In order to facilitate the laying of cables between different support bases, a cable laying hole 10 can be provided at a position corresponding to the end of the cable tray 4 on the first side wall 14, so that the cable in one support base can pass through the cable laying hole 10 and enter another support base. In addition, a plurality of through holes 41 for drainage can also be provided at the bottom of the cable tray 4, and the accumulated water in the cable tray 4 can be discharged to the bottom plate 13 through the through holes 41.

In order to connect and relatively fix multiple support foundations to form a photovoltaic string, as shown in FIG1 , a connector 7 may be provided on one of the two first side walls 14 of the box body 1 that are opposite to each other along the length direction, and a connection seat 8 that matches the connector 7 may be provided on the other of the two first side walls 14. When multiple support foundations are connected in sequence along the length direction of the box body 1, the connector 7 on one support foundation may be inserted into the connection seat 8 on another support foundation, thereby achieving relative fixation between the multiple support foundations. In a specific embodiment of the present disclosure, the connector 7 may be a snap-fit structure, and the connection seat 8 may be a slot structure, or the connector 7 and the connection seat 8 may be matching mortise and tenon structures.

In order to facilitate the wiring of the ground wire between photovoltaic strings, as shown in Figure 1, ground wire mounting holes 9 can be respectively provided on the two first side walls 14 opposite to each other along the length direction of the box body 1. The ground wires between adjacent bracket foundations can be connected through the ground wire mounting holes 9, and the ground wires in the bracket foundation at the end of the photovoltaic string can be connected to the grounding grid of the distributed photovoltaic power generation system through the ground wire mounting holes 9.

In order to enable the photovoltaic assembly to be fixedly connected to the box body 1, as shown in Figures 1 and 2, the distributed photovoltaic power generation support foundation can also include a plurality of supporting and fixing members 2, which can be fixedly connected to the inner wall of the box body 1 at intervals along the circumference of the box body 1, and the supporting and fixing members 2 can be supported below the photovoltaic assembly and fixedly connected to the photovoltaic assembly. Through the supporting and fixing effects of the supporting and fixing members 2, the photovoltaic assembly can be fixedly connected to the box body 1.

Referring to Figures 1 and 2, the supporting and fixing member 2 may include a supporting body 21 and a buckle 22. Specifically, the supporting body 21 may be fixedly connected to the inner wall of the box body 1 and extend toward the inside of the box body 1. The supporting body 21 may be constructed as a boss-like structure integrally formed with the box body 1. When the photovoltaic component covers the opening 12, the frame of the photovoltaic component can be supported on the supporting body 21. The buckle 22 may be arranged on the upper surface of the supporting body 21. When the frame of the photovoltaic component is supported on the supporting body 21, the buckle 22 can be engaged with the bottom edge of the frame of the photovoltaic component to fix the photovoltaic component.

In order to further improve the connection reliability between the photovoltaic module and the box body 1, referring to Figures 1 and 3, the distributed photovoltaic power generation bracket foundation may also include a plurality of fixed pressing blocks 3, and the plurality of fixed pressing 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 fixed pressing blocks 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 by bolts to facilitate the disassembly and assembly of the fixed pressing blocks 3 when the photovoltaic module is inspected and replaced. The stopping portion 32 may extend from the top of the opening 12 toward the inside of the box body 1 to stop above the photovoltaic module. The lower surface of the stopping portion 32 may be provided with a tooth groove structure to engage with the upper surface of the frame of the photovoltaic module, thereby increasing the friction between the stopping portion 32 and the photovoltaic module.

By arranging a supporting fixing member 2 below the photovoltaic component and a fixing pressing block 3 above the photovoltaic component, the photovoltaic component can be fixedly connected to the buckle 22 below and stopped by the stopper 32 above, so as to improve the connection reliability between the photovoltaic component and the box 1.

On the basis of the above technical solution, the present disclosure also includes a distributed photovoltaic power generation system, including photovoltaic components and the distributed photovoltaic power generation system in the above technical solution.

Through the above technical solution, the distributed photovoltaic power generation system provided by the present disclosure has the same technical effect as the distributed photovoltaic power generation support foundation in the above technical solution. In order to avoid unnecessary repetition, it will not be repeated here.

The installation of a distributed photovoltaic power generation system on the roof includes the following installation steps:

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

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

Step 3: Cover the photovoltaic assembly at the opening 12 so that the frame of the photovoltaic assembly is placed on the support body 21 of the support fixing member 2 and is engaged with the buckle 22;

Step 4: Install the fixing portion 31 of the fixing block 3 on the side wall of the box body 1 by means of bolts, so that the stopper 32 stops above the photovoltaic module;

When the distributed photovoltaic power generation system includes multiple distributed photovoltaic power generation support foundations, the assembly steps also include step five: inserting the connector 7 of one distributed photovoltaic power generation support foundation into the connector socket 8 of an adjacent distributed photovoltaic power generation support foundation.

The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims (10)

A distributed photovoltaic power generation support foundation, characterized by comprising: The box body (1) has an opening (12) at the top, and the photovoltaic assembly is fixedly connected to the opening (12). The cable tray (4) is fixedly connected to the box (1) and extends along the length direction of the box (1). an internal drainage structure (5) disposed on the inner surface of the bottom plate (13) of the box body (1), and An external drainage structure (11) is arranged on the outer surface of the bottom plate (13) and is fluidically connected to the internal drainage structure (5). The distributed photovoltaic power generation support foundation according to claim 1, characterized in that the internal drainage structure (5) comprises a first drainage groove (51) and a second drainage groove (52) arranged on the inner surface of the bottom plate (13), the first drainage groove (51) and the second drainage groove (52) intersecting, and a central drainage hole (6) is arranged 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) comprises a groove arranged on the outer surface of the bottom plate (13), and the groove is in fluid communication with the internal drainage structure (5) through the central drainage hole (6). The distributed photovoltaic power generation support foundation according to claim 2, characterized in that the inner surface of the bottom plate (13) is sloped toward the first drainage groove (51) and the second drainage groove (52), and the first drainage groove (51) and the second drainage groove (52) are sloped toward the central drainage hole (6). The distributed photovoltaic power generation support foundation according to any one of claims 1 to 3, characterized in that a through hole (41) for drainage is provided at the bottom of the cable tray (4). The two ends of the cable tray (4) are fixedly connected to two first side walls (14) of the box body (1) that are opposite to each other along the length direction, and cable laying holes (10) are provided on the first side walls (14) at positions corresponding to the ends of the cable tray (4). The distributed photovoltaic power generation support foundation according to any one of claims 1 to 4, characterized in that a connector (7) is provided on one of the two first side walls (14) of the box body (1) that are opposite to each other along the length direction, and a connecting seat (8) that matches the connector (7) is provided on the other of the two first side walls (14). The distributed photovoltaic power generation support foundation according to claim 5, characterized in that grounding wire mounting holes (9) are provided on two first side walls (14) of the box body (1) that are opposite to each other along the length direction. The distributed photovoltaic power generation support foundation according to any one of claims 1 to 6 is characterized in that the distributed photovoltaic power generation support foundation also includes a plurality of supporting and fixing components (2), and the plurality of supporting and fixing components (2) are fixedly connected to the inner wall of the box body (1) at intervals along the circumference of the box body (1), and the supporting and fixing components (2) can be supported below the photovoltaic component and fixedly connected to the photovoltaic component. The distributed photovoltaic power generation support foundation according to claim 7, characterized in that the supporting and fixing member (2) comprises: A supporting body (21) is fixedly connected to the inner wall of the box (1) and extends toward the inside of the box (1) to support the frame of the photovoltaic module; and A buckle (22) is arranged on the upper surface of the supporting body (21) so as to be snap-fitted to the frame of the photovoltaic assembly. The distributed photovoltaic power generation support foundation according to any one of claims 1 to 8, characterized in that it also comprises a plurality of fixed pressing blocks (3), wherein the plurality of fixed pressing blocks (3) are fixedly connected to the second side wall (15) of the box body (1) extending in the length direction at intervals. The fixed pressing block (3) comprises a vertically extending fixing portion (31) and a horizontally extending stopping portion (32), wherein the fixing portion (31) is fixedly connected to the outer surface of the second side wall (15), and the stopping portion (32) extends from above the opening (12) toward the inside of the box body (1) to stop above the photovoltaic module. The lower surface of the stopper (32) is provided with a tooth groove structure so as to engage with the upper surface of the frame of the photovoltaic component. A distributed photovoltaic power generation system, characterized by comprising a photovoltaic component and the distributed photovoltaic power generation system according to any one of claims 1 to 9.