BIPV photovoltaic system structure
By employing a combination of sliding components and main water supply components in a BIPV system, along with medium-pressure and side-pressure components, a water collection and guiding system is formed, solving the problem of poor waterproofing performance in BIPV systems and achieving reliable waterproofing performance and easy installation and maintenance.
Patent Information
- Application Number
- CN202520151525.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing BIPV systems for roof applications suffer from problems such as easy aging of sealant, short lifespan, and difficult maintenance, resulting in unreliable waterproofing performance.
By adopting a sliding component and a main water guide structure, and through the intersection of the sliding component and the main water guide, combined with the medium-pressure component, the side-pressure component and the auxiliary water guide, a water collection and guiding system is formed to achieve reliable connection and waterproof function of the photovoltaic module.
It achieves reliable waterproofing of photovoltaic modules, meets the waterproofing requirements of building roofs, is easy to install, simple to maintain, and has an attractive appearance.
Smart Images

Figure CN223767067U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic power generation systems, and in particular to a BIPV photovoltaic system structure. Background Technology
[0002] BIPV (Building Integrated Photovoltaic) systems are common building-integrated photovoltaic (BIPV) power generation systems. BIPV integrates photovoltaic modules directly into flat roofs, pitched roofs, curtain walls, ceilings, and other parts of a building. It can also be used to build photovoltaic sheds on the roof or ground of a building. As part of the building, the photovoltaic power generation system can achieve the integration of building and photovoltaic power generation through the BIPV system structure. BIPV photovoltaic power generation systems can not only generate electricity, but also provide functions such as rain protection, heat insulation, and sun shading for the building, while also being highly aesthetically pleasing.
[0003] However, when BIPV systems are applied to roofs, the waterproofing issue needs to be considered. Traditionally, sealant is used to achieve waterproofing, but this method is unreliable. The sealant is easily affected by the environment, prone to cracking, aging, and has a short lifespan. It is also very troublesome to maintain. Therefore, it is necessary to improve the waterproofing structure of BIPV. Utility Model Content
[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a BIPV photovoltaic system structure that can perfectly solve the problem of needing a photovoltaic power station as a waterproof roof or waterproof component to meet the waterproof requirements of building roofs.
[0005] To achieve the above objectives, this utility model provides a BIPV photovoltaic system structure, comprising:
[0006] A plurality of sliding components, wherein the sliding components are arranged in an array on the roof;
[0007] A plurality of main water components are arranged in an array and stacked on the sliding assembly, and each of the main water components is intersected with the sliding assembly. A first connecting component is provided at the intersection of each main water component and each sliding assembly to connect them, and a main water tank is formed on the main water component.
[0008] A plurality of photovoltaic modules, each of which is disposed between two adjacent main water components, and its two sides are detachably connected to the two adjacent main water components respectively.
[0009] Furthermore, the central part of the main water-conducting component protrudes upward to form a supporting part. Two first mounting positions extend outwards from the upper end of the supporting part to form two opposite directions. A second mounting part is formed between the two first mounting positions. The two side wings of the main water-conducting component extend upwards to form two arc-shaped third mounting parts. Two main water-conducting channels are formed between the third mounting parts on both sides and the supporting part. The first mounting positions are used to accommodate different photovoltaic modules, and the main water-conducting channels are used to collect and drain water from the photovoltaic modules, preventing leakage onto the roof surface below the modules, thus achieving the water collection and drainage function.
[0010] Furthermore, each set of sliding components includes several guide rails, guide rail splicing parts, and guide rail connectors fixed to the roof. The guide rails are connected to the roof via guide rail connectors, and adjacent guide rails are connected via guide rail splicing parts. A first mounting groove for enclosing the guide rail is provided on the guide rail splicing part, and the guide rail is installed and fixed within the first mounting groove. A first sliding groove is provided on the guide rail. The sliding components enable the installation and position adjustment of the main water supply components, making installation and maintenance more convenient and faster.
[0011] Furthermore, the first connecting assembly includes a first fastener and a first slider. The first slider is slidably disposed within a first groove. The first fastener is provided with a first buckle that matches the third mounting portion. A fourth mounting portion is provided on the side of the first fastener away from the first buckle, and the fourth mounting portion is fixedly connected to the first slider. The first connecting assembly is mainly used to connect the main water component and the sliding assembly, so that the main water component can be locked onto the sliding assembly. When it is necessary to move the position of the main water component, simply loosen the screw slightly to push the main water component to move along the guide rail. When it reaches the position, tighten the screw to fix it in place.
[0012] Furthermore, it also includes several edge-pressing components for fixing the outer edge of the photovoltaic module. Each edge-pressing component includes a second fastener and a second slider. The second slider is disposed within the second mounting portion. The second fastener has a second latch for engaging with the photovoltaic module. A support arm that abuts against the first mounting position is provided on the side of the second fastener away from the second latch. The middle of the support arm is fixedly connected to the second slider by a bolt. The edge-pressing components effectively fasten and install the photovoltaic module and walkway panel. Their position and quantity can be set as needed. The installation structure is simple, convenient, and quick, and each component is independent, allowing for rapid replacement without interference.
[0013] Furthermore, it also includes several medium-pressure components for connecting photovoltaic modules and main water components. Each medium-pressure component includes a third fastener and a third slider. The third slider is disposed within the second mounting section. The third fastener has two third clips facing opposite directions for engaging with the photovoltaic module, forming a gap between them. Bolts are used to fix the third slider to the gap area. The medium-pressure components are mainly used for installing photovoltaic modules and walkway panels on their non-outer edges. Each medium-pressure component is an independent unit. The number of medium-pressure components can be selected according to the length of the photovoltaic module / walkway panel during installation. The medium-pressure components do not affect each other and independently serve a connecting function, making installation, maintenance, and replacement very convenient and quick.
[0014] Furthermore, it also includes a cover plate, on the upper side of the third buckle, with an external groove, and the cover plate has a fourth buckle that matches the external groove. The cover plate can be fastened to the medium-pressure component, satisfying aesthetic requirements while also preventing rainwater from directly falling into the main water tank and splashing.
[0015] Furthermore, a guide member is provided on the main water tank, the guide member is adjacent to the third mounting part, and a fifth mounting part is provided at the upper end of the guide member, bending away from the bearing part. By providing the guide member, the installation of the secondary water guide member can be facilitated, the structure is simple, construction is convenient, and production costs are effectively reduced.
[0016] Furthermore, it also includes a secondary water guide component, which is provided with a secondary water guide channel. The upper end of the secondary water guide component has an opening communicating with the secondary water guide channel. The secondary water guide component is inserted between the photovoltaic module and the main water guide component. The setting direction of the secondary water guide component is perpendicular to the setting direction of the main water guide component, and the lower end of the secondary water guide component abuts against the fifth mounting part. Both ends of the secondary water guide channel are positioned above the main water guide channel. The secondary water guide component, the main water guide component, and the photovoltaic module are connected and fixed by compression, ensuring a firm and reliable installation. The secondary water guide component and the main water guide component are arranged intersectingly, enabling the collection of rainwater from the gaps between the photovoltaic modules and its flow into the main water guide channel through the secondary water guide channel, thus increasing the waterproof function and effect.
[0017] Furthermore, it also includes several walkway panels, which are connected to the photovoltaic modules, main water inlet, and secondary water inlet via the aforementioned medium-pressure and side-pressure components. By setting up the walkway panels, passageways can be formed between the photovoltaic modules, facilitating routine maintenance and repair.
[0018] Compared with the prior art, the present invention has the following advantages: the present invention can reliably meet the requirements of mechanical strength, is easy to install, is easy to maintain in the later stage, has an attractive appearance, and perfectly solves the problem that building roofs or photovoltaic sheds need photovoltaic power stations as waterproof roofs or waterproof components to meet the waterproof requirements of building roofs. Attached Figure Description
[0019] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is an installation diagram of a BIPV photovoltaic system structure according to this utility model;
[0021] Figure 2 yes Figure 1 Side view along direction A;
[0022] Figure 3 yes Figure 2 The intention behind magnifying region B;
[0023] Figure 4 yes Figure 2 The enlarged meaning of area C in the middle;
[0024] Figure 5 This is an exploded view of the sliding component of this utility model;
[0025] Figure 6 yes Figure 1 Schematic diagram of the middle components;
[0026] Figure 7 yes Figure 6 Side view diagram along the G direction;
[0027] Figure 8 yes Figure 7 Enlarged schematic diagram of region E;
[0028] Figure 9 yes Figure 8 A magnified schematic diagram of region G;
[0029] Figure 10 yes Figure 7 Enlarged schematic diagram of region D;
[0030] Figure 11 This is an assembly diagram of the main water component and guide rail of this utility model;
[0031] Figure 12 This is an exploded view of the first connecting component of this utility model;
[0032] Figure 13 This is a schematic diagram showing the positions of the auxiliary water guide component and the photovoltaic module of this utility model;
[0033] Figure 14 yes Figure 1 Schematic diagram of the middle section;
[0034] Figure 15 yes Figure 14 Enlarged schematic diagram of region F;
[0035] Figure 16 This is a schematic diagram of the assembly of the main water component and the main water connector of this utility model.
[0036] The diagram includes:
[0037] 1. Sliding assembly; 11. Guide rail splice; 111. First mounting groove; 12. Guide rail; 121. First sliding groove; 13. Guide rail connector; 2. Main water supply component; 21. Main water supply channel; 211. Guide component; 2111. Fifth mounting part; 22. Bearing part; 221. First mounting position; 222. Second mounting part; 23. Third mounting part; 24. Main water supply connector; 241. Second mounting groove; 242. Positioning protrusion; 25. Auxiliary positioning groove; 3. Photovoltaic module; 4. Roof; 5. 51. Connecting component; 52. First fastener; 511. First latch; 512. Fourth mounting part; 6. Medium pressure component; 61. Third fastener; 611. Third latch; 6111. External groove; 612. Spacing area; 62. Third slider; 7. Cover plate; 71. Fourth latch; 8. Edge pressing component; 81. Second fastener; 811. Second latch; 812. Bearing arm; 82. Second slider; 9. Secondary water guide component; 91. Secondary water guide groove; 92. Opening; 10. Walkway plate. Detailed Implementation
[0038] The technical solution of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.
[0041] Please see Figures 1 to 16 The present invention provides a BIPV photovoltaic system structure, including a plurality of sliding components 1, a plurality of main water components 2, and a plurality of photovoltaic modules 3.
[0042] like Figures 1 to 3 As shown, in this embodiment, the sliding assembly 1 is arranged in an array on the roof 4. The sliding assembly includes several guide rails 12, guide rail splicing parts 11, and guide rail connectors 13 fixed on the roof 4. The guide rails 12 are connected to the guide rail connectors 13 by screws, so that the guide rails 12 are set on the roof 4. Specifically, two adjacent guide rails 12 are connected by guide rail splicing parts 11. Specifically, a first mounting groove 111 for wrapping the guide rail 12 is provided on the guide rail splicing parts 11, and the guide rail 12 is installed and fixed in the first mounting groove 111. A first sliding groove 121 is provided on the guide rail 12, specifically as follows: Figure 5 As shown, the two adjacent guide rails 12 are respectively installed in the first mounting groove 111, and then locked and fixed by screws and nuts, so that the guide rails 12 can be connected end to end to form a long track. In this embodiment, the installation direction of the guide rails 12 is parallel to the horizontal direction of the roof 4, as shown. Figure 2 As shown, the installation position of the sliding component 1 is raised with the tilt angle of the roof 4, so that the connecting surface formed between the guide rails 12 is parallel to the roof 4, thereby making the main water supply component 2 and the photovoltaic module 3 installed on the guide rails 12 consistent with the tilt angle of the roof 4, thus achieving a better drainage effect.
[0043] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, several main water components 2 are arranged in an array and stacked on the sliding assembly 1, and each main water component 2 is intersecting with the sliding assembly 1. The number of main water components 2 can be adjusted as needed. Specifically, in this embodiment, the main water components 2 are arranged longitudinally and intersect perpendicularly with the guide rail 12. A first connecting component 5 is provided at the intersection of each main water component 2 and each guide rail 12 to connect them, forming a main water groove 21 on the main water component 2. Figure 8 As shown, the middle part of the main water component 2 protrudes upward to form a support part 22. Two first mounting positions 221 in opposite directions are formed on the upper end of the support part 22. A second mounting part 222 is formed between the two first mounting positions 221. The two wings of the main water component 2 extend upward to form two arc-shaped third mounting parts 23. Two main water channels 21 are formed between the third mounting parts 23 of the two wings and the support part 22.
[0044] like Figure 11 and Figure 12As shown, a first connecting component 5 is provided on both sides of the intersection of the main water component 2 and each slide rail for positioning and locking. The first connecting component 5 includes a first fastener 51 and a first slider 52. The first slider 52 is slidably disposed in the first slide groove 121. The first fastener 51 is provided with a first buckle 511 that matches the third mounting part 23. A fourth mounting part 512 is provided on the side of the first fastener 51 away from the first buckle 511. The fourth mounting part 512 is fixedly connected to the first slider 52.
[0045] Each photovoltaic module 3 is disposed between two adjacent main water supply components 2, and its two sides are detachably connected to the two adjacent main water supply components 2 respectively. In order to realize the splicing of two adjacent sets of photovoltaic modules 3, this embodiment also provides several medium-voltage components 6, such as Figure 8 As shown, the medium-voltage module 6 includes a third fastener 61 and a third slider 62. The third slider 62 is disposed within the second mounting portion 222. The third fastener 61 has two third clips 611 facing opposite directions for fastening with the photovoltaic module 3. A gap area 612 is formed between the third clips 611. The third slider 62 is fixedly connected to the third fastener 612 by bolts. The third fastener 61 and the third slider 62 can be configured as individual units. Each set of the third fastener 61 and the third slider 62 is assembled by independent connection. Multiple sets are required to achieve locking at each position. Alternatively, the third fastener 61 and the third slider 62 can be configured as long strips of suitable length. It is only necessary to provide corresponding mounting holes in the third fastener 61 and the third slider 62 for installing screws to lock them in place.
[0046] To improve the aesthetics of the medium-voltage component 6 after installation, such as Figure 8 and Figure 9 As shown, this embodiment also includes a cover plate 7. An external groove 6111 is provided on the upper side of the third buckle 611. The cover plate 7 is provided with a fourth buckle 71 that matches the external groove 6111. The cover plate 7 can be fastened to the medium pressure component 6, which satisfies the aesthetic requirements and also prevents rainwater from falling directly into the main water component and causing splashing.
[0047] If the outermost photovoltaic module 3 is connected with the medium-voltage module 6, one side will be empty, which will lead to an unstable installation. Therefore, in this embodiment, several edge-voltage modules 8 are also provided, such as... Figure 10As shown, the edge pressing assembly 8 includes a second fastening member 81 and a second slider 82. The second slider 82 is disposed in the second mounting part 222. The second fastening member 81 is provided with a second buckle 811 for fastening with the photovoltaic module 3. The side of the second fastening member 81 away from the second buckle 811 is provided with a bearing arm 812 that abuts against the first mounting position 221. The middle part of the bearing arm 812 is fixedly connected to the second slider 82 by a bolt. Similarly, the second fastening member 81 and the second slider 82 in this embodiment can also be provided as independent individuals or as long strip-shaped components.
[0048] Furthermore, both the second buckle 811 and the third buckle 611 mentioned above are provided with anti-slip teeth, which makes them more secure and prevents slippage when fastened.
[0049] As a preferred solution, such as Figure 8 and Figure 13 As shown, in this embodiment, a secondary water guide 9 is also provided between the photovoltaic module 3 and the main water guide 2. The secondary water guide 9 has a secondary water guide channel 91, and an opening 92 communicating with the secondary water guide channel 91 is provided at the upper end of the secondary water guide 9. A guide 211 is provided on the main water guide channel 21, adjacent to the third mounting portion 23. A fifth mounting portion 2111, bent away from the bearing portion 22, is provided at the upper end of the guide 211. The setting direction of the secondary water guide 9 is perpendicular to the direction of the main water guide 2, and the lower end of the secondary water guide 9 abuts against the fifth mounting portion 2111. Figure 8 As shown, the outlets at both ends of the secondary water guide trough 91 are positioned above the main water guide trough 21.
[0050] As a preferred embodiment, this embodiment also includes a plurality of walkway slabs 10, the walkway slabs 10 being positioned as follows: Figure 1 As shown, walkway 10 is positioned along the outer edge and in the middle of the photovoltaic module 3. More walkway 10 can be installed as needed to allow workers to easily access the required locations for maintenance. Figure 14 As shown, the installation of the walkway panel 10 is the same as that of the photovoltaic module 3, which is connected to the photovoltaic module 3 and the main water component 2 by the medium-pressure component 6 and the side pressure component 8 mentioned above.
[0051] In addition, in some larger houses that require a longer main water supply component 2, such as... Figure 16As shown, a main water connector 24 can be provided. A recessed auxiliary positioning groove 25 is provided in the middle of the main water component 2. The main water connector 24 is provided with a second mounting groove 241 for accommodating the main water component and a positioning protrusion 242 that matches the auxiliary positioning groove 25. The two sets of main water components that need to be connected are inserted into the second mounting groove 241 at their ends, so that the positioning protrusion 242 engages with the auxiliary positioning groove 25. Then, the main water component is connected and fixed by screws passing through the side wings of the main water connector 24.
[0052] Briefly describing the working principle of this utility model: A sliding assembly 1 is provided on the roof 4, and multiple main water guide components 2 are connected to the sliding assembly 1. When the position of the main water guide component 2 needs to be adjusted, the screws can be loosened, and then the component can be moved along the guide rail 12 to a suitable position before tightening the screws to achieve positioning and fixation. Adjacent main water guide components 2 are connected to photovoltaic modules 3 or walkway panels 10 via a medium-pressure assembly 6 and a side-pressure assembly 8. The direction of the main water guide components 2 is parallel to the slope of the roof 4. In this embodiment, a secondary water guide component 9 is also provided between the main water guide component 2 and the photovoltaic module 3 or walkway panel 10. The secondary water guide component 9 uses an extrusion mechanism. The connection method is convenient and quick for installation and disassembly. The secondary water guide 9 is oriented perpendicularly to the primary water guide 2. An opening 92 for collecting water is located above the secondary water guide 9. During assembly, the front and rear outlets of the secondary water guide trough 91 of the secondary water guide 9 are positioned directly above the primary water guide trough 21. This allows water to flow along the front and rear outlets of the secondary water guide trough 91 into the primary water guide trough 21 and then out. Therefore, during rain, rainwater will flow through the gaps in the photovoltaic modules 3 or the walkway slab 10 into the primary water guide 2 or the secondary water guide trough 9, and then drain out along the primary water guide trough 21, thus achieving a waterproofing effect.
[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A BIPV photovoltaic system structure, characterized by, The utility model relates to a kind of photovoltaic roof, including: Several sliding assemblies (1) are arranged in array on roof (4); Several main water guides (2) are arranged in array on the sliding assembly (1), and each main water guide (2) is arranged with the sliding assembly (1) intersection, and first connecting assembly (5) is connected at the intersection of each main water guide (2) and each sliding assembly (1), to form main water channel (21) on the main water guide (2); Several photovoltaic assemblies (3) are arranged between two adjacent main water guides (2), and the two sides are respectively detachably connected with two adjacent main water guides (2).
2. The BIPV photovoltaic system structure according to claim 1, characterized in that, The middle part of the main water guide (2) is upwardly convex to form a bearing portion (22), and the upper end of the bearing portion (22) extends to both sides to form two first mounting positions (221) in opposite directions, and a second mounting portion (222) is formed between the two first mounting positions (221), and the two side wings of the main water guide (2) extend upwardly to form two third mounting portions (23) in arc shape, and two main water channels (21) are formed between the third mounting portions (23) of the two side wings and the bearing portion (22).
3. The BIPV photovoltaic system structure according to claim 2, characterized in that, Each group of sliding assemblies includes a plurality of guide rails (12), guide rail splicing pieces (11) and guide rail connecting pieces (13) fixed on the roof (4), the guide rails (12) are connected with the roof (4) through the guide rail connecting pieces (13), two adjacent guide rails (12) are connected through the guide rail splicing pieces (11), and a first sliding groove (121) is arranged on the guide rail (12).
4. The BIPV photovoltaic system structure according to claim 3, characterized in that, The first connecting assembly (5) includes a first buckling piece (51) and a first sliding block (52), the first sliding block (52) is slidingly arranged in the first sliding groove (121), the first buckling piece (51) is provided with a first buckle (511) matched with the third mounting portion (23), a fourth mounting portion (512) is arranged on the side of the first buckling piece (51) away from the first buckle (511), and the fourth mounting portion (512) is fixedly connected with the first sliding block (52).
5. The BIPV photovoltaic system structure according to claim 2, characterized in that, It also includes a plurality of edge pressing assemblies (8) for fixing the outer edge of the photovoltaic assembly (3), the edge pressing assembly (8) includes a second buckling piece (81) and a second sliding block (82), the second sliding block (82) is arranged in the second mounting portion (222), a second buckle (811) for buckling with the photovoltaic assembly (3) is arranged on the second buckling piece (81), a bearing arm (812) abutting against the first mounting position (221) is arranged on the side of the second buckling piece (81) away from the second buckle (811), and the middle part of the bearing arm (812) is fixedly connected with the second sliding block (82) through the arranged bolt.
6. The BIPV photovoltaic system structure according to claim 5, characterized in that, Still further comprising several middle pressure components (6) for connecting the photovoltaic component (3) and the main water guide (2), the middle pressure component (6) comprising a third buckling component (61) and a third sliding block (62), the third sliding block (62) being arranged in the second mounting portion (222), the third buckling component (61) being provided with two third buckles (611) in opposite directions and used for buckling with the photovoltaic component (3), a spacing area (612) being formed between the third buckles (611), the spacing area (612) being fixedly connected with the third sliding block (62) through the bolt arranged thereon.
7. The BIPV photovoltaic system structure according to claim 6, characterized in that, Still further comprising a cover plate (7), the third buckling component (611) being provided with an external connecting groove (6111) on the upper side, the cover plate (7) being provided with a fourth buckle (71) matched with the external connecting groove (6111).
8. The BIPV photovoltaic system structure according to claim 2, characterized in that, The main water guide (2) is provided with a guide component (211) adjacent to the third mounting portion (23), and the fifth mounting portion (2111) is arranged on the upper end of the guide component (211) and is bent away from the bearing portion (22).
9. The BIPV photovoltaic system structure according to claim 8, characterized in that, Still further comprising a secondary water guide (9), the secondary water guide (9) being provided with a secondary water guide groove (91), the upper end of the secondary water guide (9) being provided with an opening (92) communicated with the secondary water guide groove (91), the secondary water guide (9) being arranged between the photovoltaic component (3) and the main water guide (2), the arrangement direction of the secondary water guide (9) being perpendicular to the arrangement direction of the main water guide (2), the lower end of the secondary water guide (9) being abutted with the fifth mounting portion (2111), and both ends of the secondary water guide groove (91) being arranged above the main water guide groove (21).
10. The BIPV photovoltaic system structure according to claim 6, characterized in that, Still further comprising several walkway plates (10), the walkway plates (10) being connected with the photovoltaic component (3) and the main water guide (2) through the above-mentioned middle pressure component (6) and the side pressure component (8).