A BIPV photovoltaic support structure suitable for reconstruction of existing concrete roof

Abstract

The utility model discloses a kind of BIPV photovoltaic support structures suitable for existing concrete roof reconstruction, comprising: support column assembly, it is multiple that longitudinal transverse interval is fixed on roof;Longitudinal support purlin that longitudinal transverse interval is arranged multiple, longitudinal support purlin is fixed in the top of support column assembly, the opening of several character shape structure is arranged upwards, and its internal space is main guide water channel;Longitudinal transverse spliced multiple photovoltaic panels, between two photovoltaic panels adjacent horizontally, and photovoltaic panel located in lateral side are fixed with longitudinal support purlin;Multiple transverse water guide groove plate that transversely arrange, the slot of transverse water guide groove plate is arranged upwards, and its internal space is secondary guide water channel, transverse water guide groove plate is located between two photovoltaic panels adjacent longitudinally, and the end of secondary guide water channel and the slot of main guide water channel are connected. The support can save material, reduce photovoltaic investment cost.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and more specifically to a BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs. Background Technology

[0002] With the rapid advancement of science and technology, humanity's ability to extract traditional energy sources such as oil and coal has increased dramatically. Simultaneously, the demand for these energy sources is growing daily due to societal development. The environmentally polluting and non-renewable nature of traditional energy sources necessitates the search for clean, green, and renewable new energy sources to replace them, and solar energy is one such energy source.

[0003] In existing technologies, BIPV generally refers to Building Integrated Photovoltaics. Building Integrated Photovoltaics (BIPV, where PV stands for Photovoltaic) is a technology that integrates solar power generation (photovoltaic) products into buildings. By installing photovoltaic modules on the building roof to convert light energy into electrical energy, it is beneficial for energy conservation and emission reduction, bringing solar power generation into the lives of ordinary residents.

[0004] BIPV photovoltaic systems achieve a new roof drainage system by installing integrated photovoltaic panels and metal color steel panels on the roof or by constructing a steel structure frame and M-shaped special water channel to enclose the roof.

[0005] However, the existing BIPV photovoltaic support structure uses an M-shaped water channel that only serves the function of guiding water. The M-shaped water channel usually requires a support system such as steel purlins, which consumes a large amount of steel. In addition, the photovoltaic module frame is made of aluminum alloy profiles, while the photovoltaic support is usually made of steel. The different materials have different deformations due to thermal expansion and contraction under temperature, which can cause gaps to form between them. As a result, water can flow into the roof through the gaps and cause water leakage.

[0006] Therefore, how to provide a BIPV photovoltaic support structure that can save materials, reduce photovoltaic investment costs, and reduce roof leakage is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the present invention provides a BIPV photovoltaic support structure that can save materials, reduce photovoltaic investment costs, and reduce roof leakage, and is suitable for the renovation of existing concrete roofs.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A BIPV photovoltaic support structure suitable for retrofitting existing concrete roofs includes:

[0010] The supporting column assembly consists of multiple supporting column assemblies that are fixed to the roof at longitudinal and transverse intervals, with the height of the multiple supporting column assemblies gradually decreasing from the ridge to the edge of the roof.

[0011] Longitudinal support purlins, wherein multiple longitudinal support purlins are arranged at intervals in both the longitudinal and transverse directions, and the cross-section of the longitudinal support purlins is a Z-shaped structure, which is fixed to the top of the support column assembly. The opening of the Z-shaped structure is arranged upward, and its internal space is the main water channel.

[0012] A photovoltaic panel, wherein multiple photovoltaic panels are spliced ​​together in both the longitudinal and transverse directions, and the longitudinal support purlins are fixed between two horizontally adjacent photovoltaic panels and between photovoltaic panels located on the transverse side.

[0013] A horizontal water guiding trough plate, wherein multiple horizontal water guiding trough plates are arranged horizontally, the groove openings of the horizontal water guiding trough plates are arranged upwards, and the internal space of the horizontal water guiding trough plates are secondary water guiding channels. The horizontal water guiding trough plates are located between two vertically adjacent photovoltaic panels, and the ends of the secondary water guiding channels are connected to the groove openings of the main water guiding channels, for guiding the collected rainwater into the main water guiding channels, and then through the main water guiding channels to the drainage ditches on both sides of the roof for discharge.

[0014] The main water channel has a high end on the ridge and a low end on the side of the ditch, so that rainwater in the main water channel can be discharged into the ditch. The photovoltaic panels are laid obliquely on the longitudinal support purlins.

[0015] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs. It uses longitudinal support purlins with a Z-shaped structure as the main support beams for the photovoltaic panels, and the main water channel on them has the function of collecting rainwater and guiding it into the drainage ditch. This design greatly saves support materials and reduces photovoltaic investment costs. A transverse water guide plate is provided between two adjacent photovoltaic modules, and the secondary water guide channel on it has the function of collecting rainwater and guiding it into the main water channel for discharge. Furthermore, the photovoltaic panels can absorb solar energy during power generation and also have a certain reflective effect on sunlight. An air gap is formed between the photovoltaic panels and the existing roof through the support column assembly. Air has low thermal conductivity; therefore, adding photovoltaics improves the thermal insulation performance of the existing building. Utilizing the shading effect of the photovoltaic panels on the original roof, the durability of the roof's waterproofing and insulation can be improved.

[0016] Furthermore, the supporting column assembly includes:

[0017] A support frame, which is fixed to the roof;

[0018] The column is fixedly connected to the bracket by a first bolt.

[0019] A triangular connecting plate is connected to the top of the column by a second bolt. When the second bolt is not tightened, the triangular connecting plate can rotate freely, which makes it easy to adjust the slope angle of the photovoltaic panel according to actual needs.

[0020] An inclined beam is fixed to the triangular connecting plate by U-bolts, and the longitudinal support purlin is fixed to the inclined beam.

[0021] Furthermore, the bracket has mounting holes at different heights, through which the first bolt can pass to adjust the height of the column, thus facilitating the slope adjustment of the photovoltaic panel.

[0022] Furthermore, the longitudinal support purlins are welded and fixed to the inclined beam.

[0023] Furthermore, grooved connectors are fixed on both sides of the longitudinal support purlin, wherein the upper flange of the grooved connector is fixed to the outer rolled edge of the longitudinal support purlin by a third bolt, and the lower flange of the grooved connector is fixed to the inclined beam by a through bolt.

[0024] Furthermore, a first connecting plate is fixed to the slot of the longitudinal support purlin located between two horizontally adjacent photovoltaic panels, and the ends of the two horizontally adjacent photovoltaic panels are pressed onto the first connecting plate by a medium pressure block;

[0025] The intermediate pressure block is a cylindrical structure with an outwardly protruding pressing edge at its opening. The outwardly protruding pressing edge is pressed against the frame of the photovoltaic panel. The bottom plate of the intermediate pressure block is fixedly connected to the first connecting plate by a first pressing block bolt.

[0026] Furthermore, a waterproof adhesive strip is provided between the first connecting plate and the frame.

[0027] The beneficial effects of adopting the above technical solution are: the installation of waterproof strips can solve the problem of water leakage caused by gaps formed by uneven temperature deformation between different materials.

[0028] Furthermore, it also includes longitudinal rainproof covers disposed on the splicing seams of two horizontally adjacent photovoltaic panels, the longitudinal rainproof covers being snapped onto the cylinder opening of the intermediate pressure block; it also includes transverse rainproof covers snapped onto the splicing seams of two horizontally adjacent photovoltaic panels.

[0029] The beneficial effects of adopting the above technical solution are: the installation of rainproof covers can reduce the inflow of rainwater and dust into the main water channel and the secondary water channel, and prevent the water channel from overflowing in heavy rain or becoming blocked due to excessive impurities.

[0030] Furthermore, a second connecting plate is fixed to the groove of the longitudinal support purlin located at the position of the photovoltaic panel on the lateral side, and the end of the photovoltaic panel on the lateral side is pressed onto the second connecting plate by an edge pressing block;

[0031] The edge pressing block includes: a first vertical plate, a first horizontal plate, a second vertical plate, and a second horizontal plate. The lower end of the first vertical plate is placed on the second connecting plate. The upper end of the first vertical plate is integrally connected to one end of the first horizontal plate. The first horizontal plate is fixedly connected to the second connecting plate by a second pressing block bolt. The other end of the first horizontal plate is integrally connected to the lower end of the second vertical plate. The upper end of the second vertical plate is integrally connected to one end of the second horizontal plate. The frame of the photovoltaic panel located on the horizontal side is pressed onto the second connecting plate by the second horizontal plate.

[0032] Furthermore, a waterproof adhesive strip is provided between the second connecting plate and the frame.

[0033] The beneficial effects of adopting the above technical solution are: the installation of waterproof strips can solve the problem of water leakage caused by gaps formed by uneven temperature deformation between different materials.

[0034] The above-described solution effectively solves the problem of water leakage on the existing roof by designing a fully enclosed photovoltaic system. Simultaneously, the photovoltaic panels absorb solar energy during power generation and also reflect some sunlight. An air gap is formed between the photovoltaic modules and the existing roof. Since air has low thermal conductivity, the addition of photovoltaics improves the thermal insulation performance of the existing building. The shading effect of the photovoltaic panels on the original roof improves the durability of the roof's waterproofing and insulation. The Z-shaped purlins, which also function as the main drainage channel, save materials and reduce photovoltaic investment costs. Waterproof sealing strips can resolve water leakage issues caused by gaps between different materials due to uneven temperature deformation. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 This is a top view schematic diagram of a BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs, provided by this utility model.

[0037] Figure 2This is a longitudinal cross-sectional schematic diagram of a BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs, provided by this utility model.

[0038] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the middle.

[0039] Figure 4 A schematic diagram of the structure supporting the column assembly.

[0040] Figure 5 This is a schematic diagram of the installation of longitudinal support purlins and diagonal beams.

[0041] Figure 6 This is a schematic diagram of a longitudinal support purlin installed between two horizontally adjacent photovoltaic panels.

[0042] Figure 7 A schematic diagram of the longitudinal support purlins for the photovoltaic panels on the lateral side.

[0043] Figure 8 This is a schematic diagram of the horizontal water guide plate.

[0044] Figure 9 This is a longitudinal schematic diagram of the horizontal water guide plate.

[0045] Figure 10 for Figure 9 A magnified schematic diagram of the structure of part B in the middle. Detailed Implementation

[0046] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0047] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] like Figures 1-10 As shown, this utility model embodiment discloses a BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs, comprising:

[0051] Support column assembly 1 consists of multiple support column assemblies 1 that are fixed to the roof 100 at longitudinal and transverse intervals. The height of the multiple support column assemblies 1 in the longitudinal direction gradually decreases from the ridge to the edge of the roof.

[0052] Longitudinal support purlin 2, there are multiple longitudinal support purlins arranged at intervals in the longitudinal and transverse directions, the cross section of the longitudinal support purlin 2 is a Z-shaped structure, it is fixed to the top of the support column assembly 1, the opening of the Z-shaped structure is arranged facing upward, and its internal space is the main water channel 21.

[0053] Photovoltaic panels 3 are multiple photovoltaic panels spliced ​​together in both the longitudinal and transverse directions. Longitudinal support purlins 2 are fixed between two horizontally adjacent photovoltaic panels 3 and between photovoltaic panels 3 located on the transverse side.

[0054] The horizontal water guide plate 4 consists of multiple horizontally arranged plates with the openings of the horizontal water guide plate 4 facing upwards. The internal space of the horizontal water guide plate 4 is a secondary water guide channel 41. The horizontal water guide plate 4 is located between two vertically adjacent photovoltaic panels 3, and the end of the secondary water guide channel 41 is connected to the opening of the main water guide channel 21. It is used to guide the collected rainwater into the main water guide channel 21, and then through the main water guide channel 21 into the water gutters 200 on both sides of the roof 100 for discharge.

[0055] Among them, the end of the main water channel 21 located on the ridge is the high end, and the other end located on the side of the water ditch 200 is the low end, so that rainwater in the main water channel 21 can be discharged into the water ditch 200. The photovoltaic panel 3 is laid obliquely on the longitudinal support purlin 2.

[0056] Specifically, the supporting column assembly 1 includes:

[0057] The bracket 11 can be fixed to the roof 100 with chemical anchors. After installation, waterproof materials can be used for local repairs to prevent water seepage from the roof due to the anchor holes.

[0058] The column 12 is fixedly connected to the bracket 11 by the first bolt 13;

[0059] The triangular connecting plate 14 is connected to the top of the column 12 by the second bolt 15. When the second bolt 15 is not tightened, the triangular connecting plate 14 can rotate freely, which makes it easy to adjust the slope angle of the photovoltaic panel 3 according to actual needs.

[0060] Inclined beam 16 is fixed to triangular connecting plate 14 by U-bolts 17, and longitudinal support purlin 2 is fixed to inclined beam 16.

[0061] The bracket 11 has mounting holes 121 at different heights. The first bolt 13 can pass through the mounting holes 121 at different heights, thereby adjusting the height of the column 12 and facilitating the slope adjustment of the photovoltaic panel.

[0062] In some embodiments, the longitudinal support purlin 2 is welded and fixed to the inclined beam 16.

[0063] In other embodiments, see Figure 5 As shown, grooved connectors 5 are fixed to both sides of the longitudinal support purlin 2. The upper flange of the grooved connector 5 is fixed to the outer rolled edge of the longitudinal support purlin 2 by a third bolt 6, and the lower flange of the grooved connector 5 is fixed to the inclined beam 16 by a through bolt 7. This allows the longitudinal support purlin 2 and the inclined beam 16 to be disassembled, facilitating the replacement, maintenance, and reuse of parts.

[0064] See Figure 6 A first connecting plate 8 is fixed on the groove of the longitudinal support purlin 2 located between two horizontally adjacent photovoltaic panels 3, and the ends of the two horizontally adjacent photovoltaic panels 3 are pressed onto the first connecting plate 8 by the middle pressure block 9.

[0065] Among them, the intermediate pressure block 9 is a cylindrical structure with an outwardly protruding pressing edge 91 at its opening. The outwardly protruding pressing edge 91 is pressed against the frame 31 of the photovoltaic panel 3. The bottom plate of the intermediate pressure block 9 is fixedly connected to the first connecting plate 8 by the first pressing block bolt 10.

[0066] In another embodiment, a waterproof strip (not shown) is pressed between the first connecting plate 8 and the frame 31. The waterproof strip can solve the problem of water seeping from the frame 31 into the existing roof due to gaps caused by uneven temperature deformation between different materials (the first connecting plate is made of steel and the frame is made of aluminum).

[0067] In some embodiments, the system further includes a longitudinal rainproof cover 18 disposed on the splice seam of two horizontally adjacent photovoltaic panels 3, the longitudinal rainproof cover 18 being snapped onto the cylinder opening of the intermediate pressure block 9; and a transverse rainproof cover 19 snapped onto the splice seam of two horizontally adjacent photovoltaic panels 3.

[0068] See Figure 7 A second connecting plate 20 is fixed on the groove of the longitudinal support purlin 2 located on the horizontal side of the photovoltaic panel 3. The end of the photovoltaic panel 3 on the horizontal side is pressed onto the second connecting plate 20 by the edge pressing block 22.

[0069] The edge pressing block 22 includes: a first vertical plate 221, a first horizontal plate 222, a second vertical plate 223, and a second horizontal plate 224. The lower end of the first vertical plate 221 is placed on the second connecting plate 20. The upper end of the first vertical plate 221 is integrally connected to one end of the first horizontal plate 222. The first horizontal plate 222 is fixedly connected to the second connecting plate 20 by the second pressing block bolt 23. The other end of the first horizontal plate 222 is integrally connected to the lower end of the second vertical plate 223. The upper end of the second vertical plate 223 is integrally connected to one end of the second horizontal plate 224. The frame 31 of the photovoltaic panel 3 located on the horizontal side is pressed onto the second connecting plate 20 by the second horizontal plate 224.

[0070] Of course, a waterproof strip is also pressed between the second connecting plate 20 and the frame 31. This can solve the problem of water seeping from the frame 31 into the existing roof due to gaps caused by uneven temperature deformation between different materials (the second connecting plate is made of steel and the frame is made of aluminum).

[0071] The bracket of this utility model utilizes chemical anchors to reliably connect with the original building structure, ensuring that the newly added photovoltaic system will not be blown away by the wind; the use of the Z-shaped purlins can also serve as the main water channel, saving materials; the setting of waterproof strips can solve the hidden danger of water leakage caused by gaps formed by uneven temperature deformation between different materials; the lightweight structure of this bracket can minimize the possibility of the original building needing to be reinforced due to insufficient load-bearing capacity.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A BIPV photovoltaic support structure suitable for retrofitting existing concrete roofs, characterized in that, include: Support column assembly (1), wherein the support column assembly (1) consists of multiple units fixed to the roof (100) at longitudinal and transverse intervals, and the height of the multiple support column assemblies (1) in the longitudinal direction gradually decreases from the ridge to the edge of the roof; Longitudinal support purlin (2), the longitudinal support purlin (2) is a plurality of longitudinal and transversely spaced, the cross section of the longitudinal support purlin (2) is a Z-shaped structure, which is fixed to the top of the support column assembly (1), the Z-shaped structure is arranged with the opening facing upward, and its internal space is the main water channel (21). Photovoltaic panel (3), wherein multiple photovoltaic panels (3) are spliced ​​together in the longitudinal and transverse directions, and the longitudinal support purlins (2) are fixed between two horizontally adjacent photovoltaic panels (3) and between photovoltaic panels (3) located on the transverse side; A horizontal water guide plate (4) is provided. Multiple horizontal water guide plates (4) are arranged horizontally. The groove of the horizontal water guide plate (4) is arranged upward, and its internal space is a secondary water guide channel (41). The horizontal water guide plate (4) is located between two vertically adjacent photovoltaic panels (3). The end of the secondary water guide channel (41) is connected to the groove of the main water guide channel (21) for guiding the collected rainwater into the main water guide channel (21) and then through the main water guide channel (21) to the water gutters (200) on both sides of the roof (100) for discharge. Among them, the main water channel (21) has a high end located on the ridge and a low end located on the side of the water ditch (200) so that rainwater in the main water channel (21) can be discharged into the water ditch (200). The photovoltaic panel (3) is laid obliquely on the longitudinal support purlin (2).

2. The BIPV photovoltaic support structure for retrofitting existing concrete roofs according to claim 1, characterized in that, The supporting column assembly (1) includes: A bracket (11) is fixed to the roof (100); The column (12) is fixedly connected to the bracket (11) by a first bolt (13); A triangular connecting plate (14) is connected to the top of the column (12) by a second bolt (15). When the second bolt (15) is not tightened, the triangular connecting plate (14) can rotate freely, which makes it easier to adjust the slope angle of the photovoltaic panel (3) according to actual needs. Inclined beam (16), which is fixed to the triangular connecting plate (14) by U-bolts (17), and longitudinal support purlin (2) is fixed to the inclined beam (16).

3. A BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs according to claim 2, characterized in that, The bracket (11) has mounting holes (121) at different heights. The first bolt (13) can pass through the mounting holes (121) at different heights, thereby adjusting the height of the column (12).

4. A BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs according to claim 2, characterized in that, The longitudinal support purlin (2) is welded and fixed to the inclined beam (16).

5. A BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs according to claim 2, characterized in that, Both sides of the longitudinal support purlin (2) are fixed with grooved connectors (5), wherein the upper flange of the grooved connector (5) is fixed to the outer rolled edge of the longitudinal support purlin (2) by a third bolt (6), and the lower flange of the grooved connector (5) is fixed to the inclined beam (16) by a through bolt (7).

6. A BIPV photovoltaic support structure suitable for retrofitting existing concrete roofs according to any one of claims 1-5, characterized in that, A first connecting plate (8) is fixed on the slot of the longitudinal support purlin (2) located between two horizontally adjacent photovoltaic panels (3), and the ends of the two horizontally adjacent photovoltaic panels (3) are pressed onto the first connecting plate (8) by a middle pressure block (9); The intermediate pressure block (9) is a cylindrical structure with an outwardly protruding pressing edge (91) at its opening. The outwardly protruding pressing edge (91) is pressed against the frame (31) of the photovoltaic panel (3). The bottom plate of the intermediate pressure block (9) is fixedly connected to the first connecting plate (8) by the first pressing block bolt (10).

7. A BIPV photovoltaic support structure suitable for retrofitting existing concrete roofs according to claim 6, characterized in that, A waterproof strip is provided between the first connecting plate (8) and the frame (31).

8. A BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs according to claim 6, characterized in that, It also includes a longitudinal rainproof cover (18) set on the splice seam of two horizontally adjacent photovoltaic panels (3), the longitudinal rainproof cover (18) being snapped onto the cylinder opening of the intermediate pressure block (9); it also includes a transverse rainproof cover (19) snapped onto the splice seam of two horizontally adjacent photovoltaic panels (3).

9. A BIPV photovoltaic support structure suitable for retrofitting existing concrete roofs according to any one of claims 1-5, characterized in that, A second connecting plate (20) is fixed on the slot of the longitudinal support purlin (2) located on the horizontal side of the photovoltaic panel (3). The end of the photovoltaic panel (3) on the horizontal side is pressed onto the second connecting plate (20) by the edge pressing block (22). The edge pressing block (22) includes: a first vertical plate (221), a first horizontal plate (222), a second vertical plate (223), and a second horizontal plate (224). The lower end of the first vertical plate (221) is placed on the second connecting plate (20). The upper end of the first vertical plate (221) is integrally connected to one end of the first horizontal plate (222). The first horizontal plate (222) is fixedly connected to the second connecting plate (20) by the second pressing block bolt (23). The other end of the first horizontal plate (222) is integrally connected to the lower end of the second vertical plate (223). The upper end of the second vertical plate (223) is integrally connected to one end of the second horizontal plate (224). The frame (31) of the photovoltaic panel (3) located on the horizontal side is pressed onto the second connecting plate (20) by the second horizontal plate (224).

10. A BIPV photovoltaic support structure suitable for the renovation of existing concrete roofs according to claim 9, characterized in that, A waterproof adhesive strip is provided between the second connecting plate (20) and the frame (31).

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