Photovoltaic device and photovoltaic roof

Abstract

The utility model relates to photovoltaic equipment and a photovoltaic roof, and the photovoltaic equipment comprises a waterproof support which comprises a middle longitudinal beam; the plurality of photovoltaic modules are spliced and arranged on the waterproof support along the transverse direction, the peripheral side edges of the photovoltaic modules comprise longitudinal edges, and a splicing part is formed between the longitudinal edges, close to each other, of every two adjacent photovoltaic modules; the first water blocking piece comprises a covering part and a first water blocking part which is connected to the covering part and extends to be connected to the middle longitudinal beam, the covering part covers the splicing part and is connected with the lighting surface of the photovoltaic module, a first drainage groove in butt joint with the splicing part is formed in the middle longitudinal beam, and the first water blocking part surrounds an opening of the first drainage groove. According to the photovoltaic equipment, the splicing part between the two adjacent photovoltaic modules is covered by the covering part of the first water blocking piece, so that water leakage and dirt leakage at the splicing part can be effectively reduced or even eliminated, all dirt leaked from the splicing part can enter the first drainage groove, and the waterproof and antifouling performance is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power generation equipment technology, and in particular to a photovoltaic device and a photovoltaic roof. Background Technology

[0002] Photovoltaic modules are the core component of solar power generation, bearing the crucial responsibility of converting solar energy into clean electricity, and are an important part of today's new energy field. In the construction of photovoltaic systems, buildings, especially rooftops, serve as excellent carriers for photovoltaic modules. With the close integration of photovoltaics and buildings, photovoltaic rooftops have become an important application form.

[0003] In photovoltaic (PV) roofs, PV modules are integrated into the building's roof structure. Waterproof supports are often required to meet building waterproofing requirements and ensure stable power generation from the PV modules. Since PV roofs are constantly exposed to the outdoor environment, their waterproofing performance is relatively poor due to the structural limitations of the waterproof supports. Especially during rainy weather, water seepage and leakage can easily occur at the joints and sealant application points of the PV modules, affecting their power generation efficiency. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application provides a photovoltaic device and a photovoltaic roof, the photovoltaic device having superior waterproofing and cleaning performance, and superior power generation efficiency.

[0005] In a first aspect, this application provides a photovoltaic device, comprising:

[0006] Waterproof support frame, including the central longitudinal beam;

[0007] Multiple photovoltaic modules are arranged horizontally on the waterproof bracket. The peripheral edge of each photovoltaic module includes a longitudinal edge, and a splicing part is formed between the longitudinal edges of two adjacent photovoltaic modules that are close to each other.

[0008] The first water-blocking component includes a cover portion and a first water-blocking part connected to the cover portion and extending to the intermediate longitudinal beam. The cover portion covers the splicing portion and connects to the light-receiving surface of the photovoltaic module. A first drainage groove is formed inside the intermediate longitudinal beam that mates with the splicing portion. The first water-blocking part surrounds the opening of the first drainage groove.

[0009] The photovoltaic device according to the first aspect of this application has at least the following beneficial effects:

[0010] The photovoltaic equipment of this application can effectively reduce or even eliminate water and dirt leakage at the splicing part between two adjacent photovoltaic modules by covering the covering part of the first water-blocking component with the splicing part between two adjacent photovoltaic modules. Through the setting of the first water-blocking part and the first drainage groove formed inside the middle longitudinal beam that connects with the splicing part, the first water-blocking part surrounds the opening of the first drainage groove and plays the role of blocking water and dirt. It can make all the dirt leaking from the splicing part enter the first drainage groove, preventing dirt from flowing to the back surface of the photovoltaic module and the house, thus improving the waterproof and dirt-proof performance.

[0011] In some embodiments, the first water-blocking portion and the covering portion form two lamination grooves distributed at a distance along the lateral direction, and the longitudinal edges of two adjacent photovoltaic modules that are close to each other are respectively locked in the two lamination grooves.

[0012] In some embodiments, the first water-blocking part is detachably connected to the intermediate longitudinal beam, and a first sealing strip is provided at the connection between the first water-blocking part and the intermediate longitudinal beam.

[0013] In some embodiments, the waterproof bracket further includes an edge longitudinal beam, and the photovoltaic device further includes a second water-blocking component. The second water-blocking component includes a first covering portion and a first guide portion connected to the first covering portion and extending to the edge longitudinal beam. The first covering portion covers the longitudinal edge of the photovoltaic module located at the furthest point in the lateral direction, and a second drainage groove is formed inside the edge longitudinal beam that is connected to the first guide portion.

[0014] In some embodiments, the first guide portion includes a first guide surface inclined toward the second drainage channel and a first folded edge bent relative to the first guide surface, the first guide surface being transitionally connected to the first covering portion, and the first folded edge being sealingly connected to the edge longitudinal beam.

[0015] In some embodiments, the waterproof bracket further includes an edge beam, and the photovoltaic device further includes a third water-blocking component, the third water-blocking component including a second covering portion and a second flow guide portion connected to the second covering portion and extending to the edge beam, the second covering portion covering the entire lateral edge of the photovoltaic module, and a third drainage groove formed inside the edge beam that docks with the second flow guide portion.

[0016] In some embodiments, the first drainage channel is connected to the third drainage channel.

[0017] In some embodiments, the second guide portion includes a second guide surface inclined toward the third drainage channel and a second folded edge bent relative to the second guide surface, the second guide surface being transitionally connected to the second covering portion, and the second folded edge being sealingly connected to the edge beam.

[0018] Secondly, this application provides a photovoltaic roof, which includes the photovoltaic equipment described above, and the photovoltaic modules are installed on the roof via the waterproof bracket.

[0019] The photovoltaic roof according to the second aspect of this application has at least the following beneficial effects:

[0020] The photovoltaic roof of this application, due to the installation of the aforementioned photovoltaic equipment, also has the same technical effect brought by the photovoltaic equipment, that is, it can effectively reduce or even eliminate water and dirt leakage at the splicing part between two adjacent photovoltaic modules, and can allow all the dirt leaking from the splicing part to enter the first drainage channel, preventing dirt from flowing to the back surface of the photovoltaic module and the house, thus improving the waterproof and dirt-proof performance.

[0021] In some embodiments, a fourth sealing strip is provided at the connection between the waterproof bracket and the roof.

[0022] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of a photovoltaic roof according to an embodiment of this application.

[0025] Figure 2 This is a partial structural diagram of the photovoltaic device according to an embodiment of this application. Figure 1 .

[0026] Figure 3 for Figure 2 The corresponding cross-sectional structural diagram.

[0027] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0028] Figure 5 This is a partial structural diagram of the photovoltaic device according to an embodiment of this application. Figure 2 .

[0029] Figure 6 for Figure 5 A magnified view of a section at point B.

[0030] Figure 7 for Figure 5 A magnified view of a section at point C.

[0031] Figure 8 This is a partial structural diagram of the photovoltaic device according to an embodiment of this application. Figure 3 .

[0032] Figure 9 for Figure 8 A magnified view of a section at point D.

[0033] Figure 10 for Figure 8 The corresponding cross-sectional structural diagram.

[0034] Figure 11 for Figure 10 A magnified view of a section at point E in the middle.

[0035] Figure 12 This is a schematic diagram of the structure of the light-shielding blade in an embodiment of this application.

[0036] Figure 13 This is a partial structural diagram of the photovoltaic device according to an embodiment of this application. Figure 4 .

[0037] Figure 14 for Figure 13 The corresponding cross-sectional structural diagram.

[0038] Figure 15 for Figure 14 A magnified view of a section at point F.

[0039] Figure Descriptions: Waterproof bracket 100; Middle longitudinal beam 110; First drainage channel 111; Edge longitudinal beam 120; Second drainage channel 121; Second positioning plate 122; Edge transverse beam 130; Third drainage channel 131; First positioning plate 132; Mounting groove 133; Fourth sealing strip 140; Photovoltaic module 200; Light-receiving surface 201; Backlighting surface 202; Longitudinal edge 210; Transverse edge 220; Splicing part 230; First water-blocking component 300; Covering part 310; First water-blocking part 320; Lamination groove 330; First sealing strip 340; Second water-blocking component 400; First covering part 410; First flow guiding part 420; First flow guiding surface 421; First folded edge 422; Third sealing strip 430; Third water-blocking component 440; Third water-blocking component 450; Water component 500; second covering part 510; second guide part 520; second guide surface 521; second folded edge 522; second sealing strip 530; cleaning device 600; first mounting rod 610; spraying component 620; brushing component 630; scraping component 640; first driving component 650; second driving component 660; second transmission rod 661; unblocking device 700; dirt removal component 710; third nozzle 711; third driving component 720; third transmission rod 721; light-shielding device 800; light-shielding blade 810; third mounting rod 821; fourth driving component 830; roof 900; first detection device 10; second detection device 20; heat-insulating glass 30; vacuum chamber 31; air chamber 40; transverse X; longitudinal Y. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0042] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 9 This application provides a photovoltaic device, which includes a waterproof bracket 100, a cleaning device 600, and at least two photovoltaic modules 200.

[0047] The waterproof bracket 100 includes a central longitudinal beam 110 and an edge crossbeam 130.

[0048] All photovoltaic modules 200 are spliced ​​and arranged on the waterproof bracket 100 along the horizontal X direction. The peripheral edge of the photovoltaic module 200 includes a longitudinal edge 210 and a transverse edge 220. A splicing part 230 is formed between the longitudinal edges 210 of two adjacent photovoltaic modules 200 that are close to each other. The splicing part 230 is connected to the corresponding intermediate longitudinal beam 110. A first drainage groove 111 is formed on the intermediate longitudinal beam 110 that is connected to the splicing part 230. The transverse edges 220 of all photovoltaic modules 200 are connected to the edge crossbeam 130. A third drainage groove 131 is formed inside the edge crossbeam 130 that is connected to the transverse edge 220. The first drainage groove 111 and the third drainage groove 131 are connected.

[0049] The cleaning device 600 is mounted on the waterproof bracket 100 and is configured to spray and / or brush and / or scrape the light-transmitting surface 201 of the photovoltaic module 200.

[0050] It should be noted that, in this application, see [reference 1] Figure 2 The photovoltaic module 200 can be a rectangular photovoltaic glass, specifically a special material structure in which solar cells are encapsulated between glass layers. It generates electricity through solar radiation and is equipped with a current extraction device and cables to realize solar power generation. The light-receiving surface 201 of the photovoltaic module 200 refers to the surface of the photovoltaic module 200 facing the sunlight, and the back-lighting surface 202 refers to the surface of the photovoltaic module 200 away from the sunlight.

[0051] In this application, the horizontal direction X refers to the length or width direction of the photovoltaic module 200, and the vertical direction Y refers to the width or length direction of the photovoltaic module 200.

[0052] See Figure 1 All photovoltaic modules 200 can be installed on the roof 900 using waterproof brackets 100, directly replacing the roofing material and integrating with the roof structure. Alternatively, all photovoltaic modules 200 can be fixedly installed on roof tiles or metal roofing surfaces using waterproof brackets 100. When the roof 900 is a sloped roof, the photovoltaic modules 200 are installed at an angle; when the roof 900 is a flat roof, the photovoltaic modules 200 are installed horizontally. In this embodiment, the photovoltaic modules 200 directly replace the roofing material and are installed at an angle with the roof structure using waterproof brackets 100, ensuring a seamless installation.

[0053] It should also be noted that in this application, when all photovoltaic modules 200 are spliced ​​and arranged on the waterproof bracket 100 along the horizontal direction X, the horizontal edges 220 of all photovoltaic modules 200 on the same side are sequentially connected to form a total horizontal edge. After all photovoltaic modules 200 are spliced, two total horizontal edges are formed that are distributed opposite each other along the vertical direction Y. Correspondingly, there are two edge beams 130, which are respectively close to and connected to the two total horizontal edges. In addition, a splicing part 230 is formed between the longitudinal edges 210 of two adjacent photovoltaic modules 200 that are close to each other. The number of splicing parts 230 is the same as the number of intermediate longitudinal beams 110. It is easy to understand that the number of intermediate longitudinal beams 110 is one less than the number of photovoltaic modules 200.

[0054] In this application, a splicing portion 230 is formed between the longitudinal edges 210 of two adjacent photovoltaic modules 200 that are close to each other. The splicing portion 230 refers to the splicing connection between two adjacent photovoltaic modules 200. A middle longitudinal beam 110 is correspondingly arranged below the splicing portion 230. The first drainage groove 111 formed inside the middle longitudinal beam 110 and connecting with the splicing portion 230 can be understood as follows: the first drainage groove 111 is opened on the middle longitudinal beam 110, and its opening faces the splicing portion 230; the first drainage groove 111 is located below the splicing portion 230 and extends along the longitudinal direction Y. The length of the first drainage groove 111 is basically the same as the longitudinal length of the photovoltaic module 200, so that the area of ​​the first drainage groove 111 connects to the entire splicing portion 230. The first drainage groove 111 is used to receive dust particles, rainwater and other dirt falling from the splicing portion 230, mainly to receive rainwater overflowing from the splicing portion 230, playing a role in waterproofing and draining dirt at the splicing portion 230 between adjacent photovoltaic modules 200.

[0055] The connection of the lateral edges 220 of all photovoltaic modules 200 to the edge beams 130 means that the lateral edges 220 on the same side of all photovoltaic modules 200 are connected to the corresponding edge beams 130. In other words, the extension length of the edge beams 130 along the lateral x-axis is basically the same as the lateral length of all photovoltaic modules 200. The third drainage channel 131 formed inside the edge beams 130 and connecting with the lateral edges 220 can be understood as follows: the third drainage channel 131 is opened on the edge beams 130, with its opening facing the lateral edges 220 of all photovoltaic modules 200; the length of the third drainage channel 131 is basically the same as the sum of the lateral edges 220 of all photovoltaic modules 200, so that the area of ​​the third drainage channel 131 connects to the lateral edges 220 of all photovoltaic modules 200. Furthermore, it should be understood that the third drainage channel 131 connects to all the first drainage channels 111; the third drainage channel 131 is the main drainage channel, and all the first drainage channels 111 are branch drainage channels.

[0056] Understandably, dust particles, rainwater, and other contaminants on the light-receiving surface 201 of the photovoltaic module 200 can flow into and be received by the third drainage trough 131, and then discharged through it. Simultaneously, all dust particles, rainwater, and other contaminants in the first drainage trough 111 can flow into the third drainage trough 131 and be discharged thereas as well. This achieves efficient cleaning of contaminants on the light-receiving surface 201 of the photovoltaic module 200.

[0057] See also in this application. Figure 8 and Figure 9 The cleaning device 600 is mounted on the waterproof bracket 100, with its cleaning end facing the light-receiving surface 201 of the photovoltaic module 200. The cleaning device 600 can be a single cleaning component, such as a movable nozzle, a movable brush head, or a movable scraper, which respectively clean the light-receiving surface 201 of the photovoltaic module 200 by spraying, brushing, or scraping. Alternatively, the cleaning device 600 can be an integrated cleaning component, such as one that integrates a movable nozzle, a movable brush head, and a movable scraper, which can clean the light-receiving surface 201 of the photovoltaic module 200 sequentially or simultaneously by spraying, brushing, or scraping.

[0058] By spraying and / or brushing and / or scraping the light-receiving surface 201 of the photovoltaic module 200 with the cleaning device 600, dust particles, rainwater and other dirt on the light-receiving surface 201 of the photovoltaic module 200 can flow to the lateral edge 220 of the photovoltaic module 200, and then flow into the third drainage channel 131 on the lateral edge 220, and finally be discharged from the third drainage channel 131.

[0059] It is easy to understand that, in this embodiment of the photovoltaic equipment, the middle longitudinal beam 110 of the waterproof bracket 100 is connected to the splicing portion 230 between two adjacent photovoltaic modules 200, and the first drainage groove 111 on the middle longitudinal beam 110 is aligned with the splicing portion 230, so that the first drainage groove 111 can receive dust particles, rainwater and other dirt falling from the splicing portion 230 between two adjacent photovoltaic modules 200, thus playing a role in waterproofing and draining dirt from the splicing portion 230 between adjacent photovoltaic modules 200; the edge crossbeam 130 of the waterproof bracket 100 is connected to the lateral edges 220 of all photovoltaic modules 200, and the third drainage groove 131 on the edge crossbeam 130 is aligned with the lateral edges 220 of all photovoltaic modules 200. The lateral edge 220 of the photovoltaic module 200 allows the third drainage channel 131 to receive dust particles, rainwater, and other dirt flowing down from the light-receiving surface 201 of the photovoltaic module 200. Simultaneously, the third drainage channel 131 connects to all the first drainage channels 111, allowing dirt in the first drainage channels 111 to flow into and be discharged through the third drainage channel 131, improving cleaning efficiency. Furthermore, in conjunction with the cleaning device 600, spraying and / or brushing and / or scraping the light-receiving surface 201 of the photovoltaic module 200 accelerates the flow of dust particles, rainwater, and other dirt from the light-receiving surface 201 into the third drainage channel 131, where it is ultimately discharged. Thus, improving the waterproof and cleaning performance of the photovoltaic equipment also improves its wastewater discharge efficiency, thereby increasing its power generation efficiency.

[0060] In some embodiments of this application, see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The photovoltaic equipment also includes a first water-blocking component 300, which includes a cover portion 310 and a first water-blocking portion 320 connected to the cover portion 310 and extending to the intermediate longitudinal beam 110. The cover portion 310 covers the splicing portion 230 and connects to the light-receiving surface 201 of the photovoltaic module 200. The first water-blocking portion 320 surrounds the opening of the first drainage channel 111.

[0061] Specifically, the number of the first water-blocking components 300 is the same as the number of the intermediate longitudinal beams 110, and the two are in a one-to-one correspondence. The first water-blocking components 300 can be, but are not limited to, metal structural components with good corrosion resistance and structural strength, such as aluminum alloy structures and steel structures. The first water-blocking components 300 are made of plate-shaped structures through processes such as stamping and bending, and the covering part 310 and the first water-blocking part 320 are integrally formed structures.

[0062] The intermediate longitudinal beam 110 is located below the photovoltaic module 200. The cover part 310 covers the splicing part 230 between two adjacent photovoltaic modules 200. The two opposite edges of the cover part 310 along the transverse X direction are respectively attached and fixed to the longitudinal edges of the light-receiving surfaces of the two adjacent photovoltaic modules 200. The first water-blocking part 320 is provided at the bottom of the cover part 310 and extends downward to connect to the opening edge of the first drainage groove 111 of the intermediate longitudinal beam 110. In this way, it surrounds the opening of the first drainage groove 111 to form a seal at the opening edge of the first drainage groove 111, preventing dirt from leaking out through the connection between the first water-blocking part 300 and the intermediate longitudinal beam 110, thereby improving the waterproof and anti-fouling performance.

[0063] By covering the splicing portion 230 with the covering portion 310 of the first water-blocking component 300, water and dirt leakage between the splicing portions 230 of two adjacent photovoltaic modules 200 can be effectively reduced or even eliminated. With the first water-blocking portion 320 surrounding the opening of the first drainage channel 111, the first water-blocking portion 320 plays the role of blocking water and dirt, so that all the dirt leaking from the splicing portion 230 can enter the first drainage channel 111, preventing dirt from flowing to the back surface 202 of the photovoltaic module 200 and the house, thus improving the waterproof and dirt-proof performance.

[0064] Further, see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The first water-blocking part 320 and the covering part 310 form two lamination grooves 330 distributed at intervals along the transverse direction X. The longitudinal edges 210 of two adjacent photovoltaic modules 200 are respectively locked in the two lamination grooves 330.

[0065] It should be noted that the first water-blocking part 320 and the covering part 310 are integrally formed structures. The lamination groove 330 formed by the two means that when the longitudinal edge 210 corresponding to the photovoltaic module 200 is placed into the lamination groove 330, the longitudinal edge 210 corresponding to the photovoltaic module 200 can be snapped and fixed in the lamination groove 330 by external mechanical pressure, so as to be tightly covered by the lamination groove 330.

[0066] The first water-blocking part 320 and the covering part 310 form two lamination grooves 330 that are distributed at intervals along the transverse direction X. The longitudinal edges 210 of two adjacent photovoltaic modules 200 that are close to each other are respectively locked in the two lamination grooves 330. On the one hand, it enhances the installation stability of the photovoltaic module 200 and reduces the risk of loosening or slipping during use. On the other hand, it improves the waterproof sealing effect on the longitudinal edges 210 of two adjacent photovoltaic modules 200 that are close to each other, and prevents water stains and other dirt from flowing through the longitudinal edges 210 of the photovoltaic module 200 to the back surface 202 of the photovoltaic module 200 and affecting the power generation efficiency of the photovoltaic module 200.

[0067] Further, see Figure 2 , Figure 3 and Figure 4 The first water-blocking part 320 is detachably connected to the intermediate longitudinal beam 110, and a first sealing strip 340 is provided at the connection between the first water-blocking part 320 and the intermediate longitudinal beam 110.

[0068] Specifically, see Figure 4 The first water-blocking part 320 can be fixedly connected to the intermediate longitudinal beam 110 by a detachable structure such as bolts or expansion screws. The bottom of the first water-blocking part 320 is attached to the opening edge of the first drainage groove 111 by a first sealing strip 340. The first sealing strip 340 can be, but is not limited to, an elastic silicone strip, a sponge foam sealing strip, etc. It is easy to understand that in this application, the splicing part 230 between two adjacent photovoltaic modules 200 is connected to the intermediate longitudinal beam 110 through the first water-blocking part 320.

[0069] By detachably connecting the first water-blocking part 320 to the intermediate longitudinal beam 110, it is convenient to disassemble and assemble the first water-blocking part 300 as a whole. By setting the first sealing strip 340 at the connection between the first water-blocking part 320 and the intermediate longitudinal beam 110, water seepage and dirt seepage at the connection between the first water-blocking part 320 and the intermediate longitudinal beam 110 can be effectively prevented, thereby improving the waterproof and dirt-proof performance of the photovoltaic equipment.

[0070] See Figure 8 , Figure 9 and Figure 10 In some embodiments of this application, the photovoltaic device further includes a third water-blocking component 500, which includes a second covering portion 510 and a second flow guide portion 520 connected to the second covering portion 510 and extending to the edge beam 130. The second covering portion 510 covers the entire lateral edge 220 of the photovoltaic module 200, and the second flow guide portion 520 is connected to the third drainage channel 131.

[0071] Specifically, the third water-blocking component 500 can be, but is not limited to, a metal structural component with good corrosion resistance and structural strength, such as an aluminum alloy structure or a steel structure. The third water-blocking component 500 is made of a plate structure through processes such as stamping and bending. The second covering part 510 and the second flow guiding part 520 are integrally formed structures. The second covering part 510 can be constructed as a lamination groove, an elastic covering groove, etc., with the opening facing the lateral edge 220 of the photovoltaic module 200.

[0072] When installing the photovoltaic module 200, the lateral edges 220 of all the photovoltaic modules 200 can be placed inside the second covering part 510 first. Then, by pressing with external mechanical pressure, the second covering part 510 is pressed tightly against and covers the lateral edges 220 of all the photovoltaic modules 200, so that the lateral edges 220 of all the photovoltaic modules 200 are snapped and fixed inside the second covering part 510 and tightly covered by the second covering part 510.

[0073] The second guide portion 520, which connects to the second covering portion 510 and extends to the edge beam 130, refers to the fact that its two ends are respectively connected to the second covering portion 510 and the edge beam 130. Specifically, one end of the second guide portion 520 is connected to the outermost edge of the second covering portion 510 along the transverse X direction, and the other end is fitted to the opening edge of the third drainage channel 131 to prevent water and dirt from seeping into the connection between the second guide portion 520 and the edge beam 130, thereby improving the waterproof and dirt-proof performance of the photovoltaic equipment.

[0074] The second guide section 520 connecting to the third drainage channel 131 means that the second guide section 520 is partially or entirely located within the third drainage channel 131.

[0075] It is easy to understand that by covering the entire lateral edge 220 of the photovoltaic module 200 with the second covering part 510 of the third water-blocking component 500, on the one hand, the installation stability of the lateral edge 220 of the photovoltaic module 200 is strengthened, reducing the risk of loosening or slipping of the photovoltaic module 200 during use. On the other hand, the waterproof sealing of the lateral edge 220 of the photovoltaic module 200 is improved, preventing water stains and other dirt from flowing through the lateral edge 220 of the photovoltaic module 200 to the back surface 202 of the photovoltaic module 200 and affecting the power generation efficiency of the photovoltaic module 200.

[0076] By connecting the second guide portion 520 of the third water-blocking component 500 to the second covering portion 510 and extending it to the edge crossbeam 130, and by connecting the second guide portion 520 to the third drainage trough 131, dirt on the light-receiving surface 201 of the photovoltaic module 200 can flow along the light-receiving surface 201 to the second guide portion 520, and then flow into the third drainage trough 131 through the guiding effect of the second guide portion 520, and finally be discharged through the third drainage trough 131, the drainage and cleaning performance of the photovoltaic equipment is further improved, the sewage discharge efficiency of the photovoltaic equipment is correspondingly improved, and the power generation efficiency of the photovoltaic equipment is further improved.

[0077] Further, see Figure 8 , Figure 9 and Figure 10The second guide portion 520 includes a second guide surface 521 inclined toward the third drainage groove 131 and a second folded edge 522 bent relative to the second guide surface 521. The second guide surface 521 is transitionally connected to the second covering portion 510, and the second folded edge 522 seals the connecting edge beam 130.

[0078] Specifically, see Figure 10 and Figure 11 The second guide surface 521 can be a plane or an arc surface that is inclined relative to the third drainage groove 131. Correspondingly, the second guide surface 521 can be connected to the second covering part 510 through an arc or a bent edge. The second guide surface 521 and the second bent edge 522 are integrally formed structures.

[0079] The second guide surface 521 is partially or entirely within the third drainage channel 131. The second folded edge 522 extends from the end of the second guide surface 521 away from the second covering part 510 and connects to the opening edge of the third drainage channel 131. The opening edge of the third drainage channel 131 is provided with a first positioning plate 132. The second folded edge 522 hooks onto the bottom edge of the first positioning plate 132, reducing water seepage and dirt seepage at the connection between the second guide part 520 and the edge beam 130.

[0080] With the above configuration, dirt on the light-receiving surface 201 of the photovoltaic module 200 flows to the second guide surface 521 and can then flow along the inclined second guide surface 521 to the third drainage trough 131. This accelerates the flow of dirt and improves the cleaning efficiency. The second folded edge 522, which is bent relative to the second guide surface 521, reduces the difficulty of connecting the second guide section 520 and the edge beam 130. The second folded edge 522 seals the connection between the edge beam 130, effectively reducing water seepage and dirt seepage at the connection between the second guide section 520 and the edge beam 130.

[0081] Further, see Figure 10 and Figure 11 The bottom end of the second covering part 510 is detachably connected to the edge beam 130, and a second sealing strip 530 is provided at the connection between the two.

[0082] This facilitates the overall disassembly and assembly of the third water-blocking component 500. At the same time, the second sealing strip 530 can effectively prevent water and dirt from seeping into the connection between the second covering part 510 and the edge beam 130, further improving the waterproof and anti-fouling performance of the photovoltaic equipment.

[0083] In some embodiments of this application, see Figure 5 , Figure 7 , Figure 13 and Figure 14The waterproof bracket 100 also includes an edge longitudinal beam 120, and the photovoltaic device also includes a second water-blocking component 400. The second water-blocking component 400 includes a first covering part 410 and a first guide part 420 connected to the first covering part 410 and extending to the edge longitudinal beam 120. The first covering part 410 covers the longitudinal edge 210 of the photovoltaic module 200 located at the farthest point in the transverse X direction. A second drainage groove 121 is formed inside the edge longitudinal beam 120 that docks with the first guide part 420. The second drainage groove 121 is connected to the third drainage groove 131.

[0084] It should be noted that when all photovoltaic modules 200 are spliced ​​along the horizontal X, there are two edge longitudinal beams 120 and two water-blocking components 400, for a total of two pairs. The two pairs of edge longitudinal beams 120 and two water-blocking components 400 correspond to the longitudinal edges 210 of the two photovoltaic modules 200 that are furthest apart along the horizontal X.

[0085] Specifically, the second water-blocking component 400 can be, but is not limited to, a metal structural component with good corrosion resistance and structural strength, such as an aluminum alloy structure or a steel structure. The second water-blocking component 400 is made of a plate-like structure through processes such as stamping and bending. The first covering part 410 and the first flow guiding part 420 are integrally formed structures. The first covering part 410 can be constructed as a lamination groove, an elastic covering groove, etc., with the opening facing the lateral edge 220 of the photovoltaic module 200.

[0086] When installing the photovoltaic module 200, the longitudinal edge 210 of the photovoltaic module 200 located at the farthest point in the horizontal X direction can be placed inside the first covering part 410. Then, by pressing with external mechanical pressure, the first covering part 410 is pressed tightly against and covers the longitudinal edge 210, so that the longitudinal edge 210 of the photovoltaic module 200 is engaged and fixed inside the first covering part 410 and is tightly covered by the first covering part 410.

[0087] The first guide portion 420, which connects to the first covering portion 410 and extends to the edge longitudinal beam 120, refers to the fact that its two ends are respectively connected to the first covering portion 410 and the edge longitudinal beam 120. Specifically, one end of the first guide portion 420 is connected to the outermost edge of the first covering portion 410 along the transverse direction X, and the other end is attached to the opening edge of the second drainage groove 121 on the edge longitudinal beam 120, to prevent water and dirt from seeping into the connection between the first guide portion 420 and the edge longitudinal beam 120, thereby improving the waterproof and dirt-proof performance of the photovoltaic equipment.

[0088] The first guide section 420 connecting to the second drainage channel 121 means that the first guide section 420 is partially or entirely located within the second drainage channel 121.

[0089] The second drainage channel 121 formed inside the edge longitudinal beam 120 and connected to the first guide section 420 can be understood as follows: the second drainage channel 121 is opened on the edge longitudinal beam 120, and its opening faces the first guide section 420; the second drainage channel 121 extends along the longitudinal Y, and its length is basically consistent with the longitudinal length of the photovoltaic module 200, so that the area of ​​the second drainage channel 121 is connected to the longitudinal edge 210 of the photovoltaic module 200 at the farthest point in the transverse X.

[0090] It is easy to understand that dust particles, rainwater, and other dirt on the light-receiving surface 201 of all photovoltaic modules 200 can flow along the horizontal X direction to the longitudinal edge 210 of the photovoltaic module 200 at its farthest point in the horizontal X direction. Then, through the guiding effect of the first guide section 420, it flows to the second drainage trough 121. By connecting the second drainage trough 121 with the third drainage trough 131, the dirt in the second drainage trough 121 can flow into the third drainage trough 131 and be discharged through the third drainage trough 131. In this way, it serves to waterproof and drain dirt from the outermost longitudinal edge 210 of all photovoltaic modules 200.

[0091] It is easy to understand that by covering the longitudinal edge 210 of the photovoltaic module 200 located at the farthest point in the horizontal X direction with the first covering part 410 of the second water-blocking component 400, on the one hand, the installation stability of the outermost longitudinal edge 210 of all photovoltaic modules 200 is strengthened, reducing the risk of loosening or slipping of the photovoltaic module 200 during use. On the other hand, the waterproof sealing of the outermost longitudinal edge 210 of all photovoltaic modules 200 is improved, preventing water stains and other dirt from flowing through the outermost longitudinal edge 210 of all photovoltaic modules 200 to the back surface 202 of the photovoltaic module 200 and affecting the power generation efficiency of the photovoltaic module 200.

[0092] By connecting the first guide portion 420 of the second water-blocking component 400 to the first covering portion 410 and extending it to the edge longitudinal beam 120, and by connecting the first guide portion 420 to the second drainage channel 121, dirt on the light-receiving surface 201 of the photovoltaic module 200 can flow along the light-receiving surface 201 to the first guide portion 420, and then flow into the second drainage channel 121 through the guiding effect of the first guide portion 420, and finally flow into the third drainage channel 131 and be discharged through the third drainage channel 131, so that all photovoltaic modules 200 are effectively waterproofed and sealed and effectively drained, further improving the waterproof performance and cleaning performance of the photovoltaic equipment, correspondingly improving the drainage efficiency of the photovoltaic equipment, and further improving the power generation efficiency of the photovoltaic equipment.

[0093] Further, see Figure 5 , Figure 7 , Figure 13 and Figure 14The first guide portion 420 includes a first guide surface 421 inclined toward the second drainage groove 121 and a first folded edge 422 bent relative to the first guide surface 421. The first guide surface 421 is transitionally connected to the first covering portion 410, and the first folded edge 422 seals the connecting edge longitudinal beam 120.

[0094] Specifically, the first guide surface 421 can be a plane or an arc surface that is inclined relative to the second drainage groove 121. Correspondingly, the first guide surface 421 can be connected to the first covering part 410 through an arc or a bent edge. The first guide surface 421 and the first bent edge 422 are integrally formed structures.

[0095] See Figure 14 and Figure 15 The first guide surface 421 is partially or entirely located within the second drainage channel 121. The first folded edge 422 extends from the end of the first guide surface 421 away from the first covering part 410 and connects to the opening edge of the second drainage channel 121. The opening edge of the second drainage channel 121 is provided with a second positioning plate 122. The first folded edge 422 is hooked onto the bottom edge of the second positioning plate 122 to reduce water seepage and dirt seepage at the connection between the first guide part 420 and the edge longitudinal beam 120.

[0096] With the above configuration, dirt on the light-receiving surface 201 of the photovoltaic module 200 flows to the first guide surface 421 and can then flow along the inclined first guide surface 421 to the second drainage trough 121. This accelerates the flow of dirt and improves the cleaning efficiency. The first folded edge 422, which is bent relative to the first guide surface 421, reduces the difficulty of connecting the first guide part 420 and the edge longitudinal beam 120. The first folded edge 422 seals the connection between the edge longitudinal beam 120, effectively reducing water seepage and dirt seepage at the connection between the first guide part 420 and the edge longitudinal beam 120.

[0097] Further, see Figure 14 and Figure 15 The bottom end of the first covering part 410 is detachably connected to the edge longitudinal beam 120, and a third sealing strip 430 is provided at the connection between the two.

[0098] This facilitates the overall disassembly and assembly of the second water-blocking component 400. At the same time, the third sealing strip 430 can effectively prevent water and dirt from seeping into the connection between the first covering part 410 and the edge longitudinal beam 120, further improving the waterproof and anti-fouling performance of the photovoltaic equipment.

[0099] In some embodiments of this application, see Figure 8 , Figure 9 and Figure 10The cleaning device 600 includes a first mounting rod 610 and a spraying component 620 and a brushing component 630 spaced circumferentially on the outer wall of the first mounting rod 610. The first mounting rod 610 extends along the longitudinal direction Y of the photovoltaic module 200 and faces the light-receiving surface 201 of the photovoltaic module 200. The first mounting rod 610 is configured to be able to move in the transverse direction X and to rotate around itself. The spraying component 620 and the brushing component 630 are used to spray and brush the light-receiving surface 201, respectively.

[0100] Specifically, the first mounting rod 610 is spaced above the light-receiving surface 201 of the photovoltaic module 200 and parallel to the light-receiving surface 201. The first mounting rod 610 may be, but is not limited to, a round rod, a square rod, etc.

[0101] The spray cleaning component 620 refers to a structure capable of spraying high-pressure cleaning agent and / or high-pressure airflow. The cleaning agent can be clean water or other detergents with cleaning capabilities. It sprays high-pressure cleaning agent and / or high-pressure airflow toward the light-transmitting surface 201 to spray and wash away loose dirt such as dust, bird droppings, and accumulated puddles on the light-transmitting surface 201, enabling efficient cleaning of the light-transmitting surface 201 through spray cleaning. The spray cleaning component 620 can be, but is not limited to, a fan-shaped nozzle, a rotating nozzle, an atomizing nozzle, etc.

[0102] The brushing component 630 refers to the removal of adhesive dirt (such as oil stains and water stains) adhering to the light-transmitting surface 201 through physical friction. The brushing component 630 can be constructed as a brush structure with vibration function. It can be, but is not limited to, a brush made of nylon bristles, a microfiber roller brush, etc. It has a strong ability to clean dirt and is not easy to scratch the light-transmitting surface 201 of the photovoltaic module 200.

[0103] The first mounting rod 610 rotates around itself, causing the spray cleaning component 620 and the brush cleaning component 630 to contact the light-receiving surface 201 of the photovoltaic module 200 in sequence. The spray cleaning component 620 can first spray the light-receiving surface 201 to remove loose dirt such as dust, bird droppings, and puddles of water. Then, the brush cleaning component 630 can brush the light-receiving surface 201 to remove the dirt adhering to it. Finally, the spray cleaning component 620 can perform another spray cleaning action. Alternatively, the brush cleaning component 630 can be used first, followed by the spray cleaning component 620, and then the brush cleaning component 630 can perform a brush cleaning action. This method efficiently removes dirt from the light-receiving surface 201 of the photovoltaic module 200.

[0104] Furthermore, in this application, the light-receiving surface 201 of the photovoltaic module 200 is inclined relative to the third drainage trough 131, and / or the light-receiving surface 201 of the photovoltaic module 200 is higher than the third drainage trough 131 of the bottom edge crossbeam 130, which accelerates the flow of dirt washed down from the light-receiving surface 201 of the photovoltaic module 200 to the third drainage trough 131, thereby accelerating the sewage discharge rate.

[0105] It is easy to understand that, through the coordinated arrangement of the first mounting rod 610, the spray washing component 620, and the brush washing component 630 of the cleaning device 600, the first mounting rod 610 rotates around itself, causing the spray washing component 620 and the brush washing component 630 to contact the light-receiving surface 201 of the photovoltaic module 200 in sequence, performing spray washing, brush washing, spray washing, or brush washing, spray washing, brush washing in sequence on the light-receiving surface 201. At the same time, the first mounting rod 610 also drives the spray washing component 620 and the brush washing component 630 on it. The component moves laterally (X) so that the cleaning areas of the spray cleaning component 620 and the brush cleaning component 630 cover the light-receiving surface 201 of the entire photovoltaic module 200. In this way, the dirt on the light-receiving surface 201 of the entire photovoltaic module 200 is efficiently flushed to the third drainage channel 131 and the second drainage channel 121 at the edge of the photovoltaic module 200. The dirt is then discharged through the third drainage channel 131, which improves the cleaning performance of the photovoltaic equipment and also improves the sewage discharge efficiency of the photovoltaic equipment, thereby improving the power generation efficiency of the photovoltaic equipment.

[0106] Specifically, see also Figure 8 , Figure 9 and Figure 10 The cleaning device 600 may include a first driving member 650, which is mounted on the edge beam 130 to prevent it from blocking the light-receiving surface 201 of the photovoltaic module 200. The output end of the first driving member 650 is connected to the end of the first mounting rod 610 to drive the first mounting rod 610 to rotate around itself. The first driving member 650 may be a rotating driving member such as a motor.

[0107] The cleaning device 600 also includes a second driving member 660, the driving end of which is connected to the first mounting rod 610 to drive the first mounting rod 610 to move laterally X, so that the movement trajectory of the first mounting rod 610 and the spray cleaning member 620 and brush cleaning member 630 on it covers the light-receiving surface 201 of the entire photovoltaic module 200.

[0108] To simplify the overall structure of the first drive unit 650 and the second drive unit 660 and to save space occupied by them, see [reference needed]. Figure 8 , Figure 9 and Figure 10The second driving member 660 includes a second sub-driving member (not shown in the figure), a second transmission rod 661 driven by the second sub-driving member, and a second limiting groove (not shown in the figure) provided on the side wall of the third drainage channel 131. The second transmission rod 661 extends along the transverse X direction and can be driven by the second sub-driving member to rotate around itself. The length of the second transmission rod 661 is the same as the length of the third drainage channel 131. The second sub-driving member can be a rotary driving member such as a motor. The first driving member 650 is sleeved on the second transmission rod 661 and threadedly connected to the second transmission rod 661. The first driving member 650 is also slidably connected to the second limiting groove. The first driving member 650 can also be a rotary driving member such as a motor. It is easy to understand that the second driving member 660 as a whole can be understood as a lead screw transmission structure, which converts the rotational motion of the second sub-driving member into the accurate movement of the second driving member 660 in the transverse X direction.

[0109] With the above-described structure, the first driving member 650 has only the degree of freedom of movement in the lateral X direction. This allows the first driving member 650 to drive the first mounting rod 610 to rotate while simultaneously moving the first mounting rod 610 in the lateral X direction. This not only simplifies the overall structure of the first driving member 650 and the second driving member 660, but also greatly reduces the space occupied by the cleaning device 600 on the photovoltaic equipment. Furthermore, it significantly reduces the area of ​​the cleaning device 600 that blocks the light-receiving surface 201 of the photovoltaic module 200, which is beneficial to improving the power generation efficiency of the photovoltaic equipment.

[0110] See Figure 8 , Figure 9 and Figure 10 Furthermore, the spraying component 620 extends along the length direction of the first mounting rod 610; and / or, the brushing component 630 extends along the length direction of the first mounting rod 610.

[0111] With this configuration, since the first mounting rod 610 extends longitudinally along the Y direction, the overall length of the spray cleaning component 620 and / or the brush cleaning component 630 also extends longitudinally along the Y direction. In addition, the spray cleaning component 620 and the brush cleaning component 630 can also move laterally along the X direction under the drive of the first mounting rod 610, so that the spray cleaning area of ​​the spray cleaning component 620 and the brush cleaning area of ​​the brush cleaning component 630 can cover all areas on the light-collecting surface 201 of the photovoltaic module 200, thereby enabling a more comprehensive and thorough cleaning of the light-collecting surface 201 and further improving the cleaning performance of the photovoltaic equipment.

[0112] Furthermore, see also Figure 8 , Figure 9 and Figure 10 The cleaning device 600 also includes a scraper 640, and the scraper 640, the sprayer 620 and the brush 630 are circumferentially spaced on the outer wall of the first mounting rod 610. The scraper 640 is used to scrape the light-transmitting surface 201.

[0113] The scraper 640 refers to a component capable of physically removing adhesive dirt and grime adhering to the light-transmitting surface 201. The scraper 640 can be constructed as a silicone plate, a polyurethane scraper, or a rubber plate. It can scrape away highly adhesive dirt (such as bird droppings, mud, etc.) from the light-transmitting surface 201 without easily scratching it. It should be noted that the scraper 640 has a stronger structure than the brush 630, making it more effective at removing highly adhesive dirt from the light-transmitting surface 201.

[0114] The scraping element 640 can also extend along the length of the first mounting rod 610, so that the scraping area of ​​the scraping element 640 can cover all areas on the light-receiving surface 201 of the photovoltaic module 200.

[0115] By cooperating with the spraying component 620, brushing component 630, and scraping component 640 arranged circumferentially on the outer wall of the first mounting rod 610, and in conjunction with the rotation of the first mounting rod 610 around itself, the spraying component 620, brushing component 630, and scraping component 640 contact the light-receiving surface 201 of the photovoltaic module 200 in sequence, and perform cleaning actions such as spraying, brushing, scraping, spraying, or scraping, spraying, brushing, spraying, or brushing, spraying, scraping, and spraying on the light-receiving surface 201 in sequence.

[0116] Simultaneously, the first mounting rod 610 also drives the spraying component 620, brushing component 630, and scraping component 640 on it to move laterally X, so that the cleaning area of ​​the spraying component 620, brushing component 630, and scraping component 640 covers the light-receiving surface 201 of the entire photovoltaic module 200. In this way, the dirt on the light-receiving surface 201 of the entire photovoltaic module 200 is efficiently flushed to the third drainage channel 131 and the second drainage channel 121 at the edge of the photovoltaic module 200, so that the dirt is discharged through the third drainage channel 131, improving the cleaning performance of the photovoltaic equipment and correspondingly improving the sewage discharge efficiency of the photovoltaic equipment, thereby improving the power generation efficiency of the photovoltaic equipment.

[0117] Furthermore, the spraying component 620 is provided with a plurality of first nozzles (not shown in the figure) spaced apart along the longitudinal direction Y and / or a plurality of second nozzles (not shown in the figure) spaced apart along the longitudinal direction Y. The first nozzles are used to spray cleaning agent toward the light-transmitting surface 201, and the second nozzles are used to pneumatically flush the light-transmitting surface 201.

[0118] The cleaning agent is a liquid, such as high-pressure water, and the second nozzle sprays out a high-pressure airflow.

[0119] For example, in one embodiment, the spray cleaning component 620 is provided with a plurality of first nozzles distributed at intervals along the longitudinal direction Y. In this case, all the spray cleaning components 620 spray high-pressure cleaning agent to rinse the light-transmitting surface 201.

[0120] In another embodiment, the spraying component 620 is provided with a plurality of second nozzles spaced apart along the longitudinal direction Y. In this case, all the second nozzles spray high-pressure airflow to wash the light-receiving surface 201.

[0121] For example, in one embodiment, the spray cleaning component 620 is provided with multiple first nozzles and second nozzles alternately along the longitudinal direction Y. In this case, the spray cleaning component 620 uses a combination of high-pressure liquid flow flushing and high-pressure airflow flushing to wash away the dirt attached to the light-transmitting surface 201. The high-pressure liquid flow sprayed from the first nozzle can effectively disperse the dirt attached to the light-transmitting surface 201, and the high-pressure airflow sprayed from the second nozzle can generate microbubbles in the liquid cleaning agent. When the bubbles burst, they release local high pressure, further peeling off the stubborn dirt on the light-transmitting surface 201. The combination of the two can improve the cleaning efficiency, and can also accelerate the flow of dirt into the third drainage channel 131 and the second drainage channel 121 at the edge of the photovoltaic module 200, thereby improving the sewage discharge efficiency.

[0122] See also Figure 8 , Figure 9 and Figure 10 In some embodiments of this application, the cleaning device 600 further includes a first driving member 650, which is used to drive the first mounting rod 610 to rotate around itself; the photovoltaic device further includes a controller and a first detection device 10, which is used to acquire images of the light-collecting surfaces 201 of all photovoltaic modules 200 to determine the degree of dirt on the light-collecting surfaces 201. The first detection device 10, the first driving member 650, the spray cleaning member 620 and the brush cleaning member 630 are all communicatively connected to the controller.

[0123] Specifically, the first detection device 10 may be, but is not limited to, a CCD camera, a CMOS sensor, etc. The controller is also communicatively connected to the aforementioned second drive unit 660.

[0124] The first detection device 10 acquires images of the light-collecting surfaces 201 of all photovoltaic modules 200. Based on the image information acquired by the first detection device 10, the controller determines the degree of dirtiness of the corresponding light-collecting surface 201. The controller then controls the second driving component 660 to move the first mounting rod 610 to the corresponding position on the light-collecting surface 201. The controller then controls the first driving component 650 to drive the first mounting rod 610 to rotate, so that the spray cleaning component 620, brush cleaning component 630 and scraping component 640 clean the dirt on the light-collecting surface 201 in a predetermined order, thus meeting the needs of performing local cleaning and overall cleaning of the light-collecting surface 201.

[0125] See also Figure 8 , Figure 9 and Figure 10In some embodiments of this application, the photovoltaic device also includes a dredging device 700 disposed on the edge beam 130. The dredging device 700 includes a dirt-draining component 710 disposed on the third drainage channel 131. The dirt-draining component 710 can move along the third drainage channel 131 to dredge the third drainage channel 131 and drain the dirt from the third drainage channel 131.

[0126] With this configuration, the third drainage channel 131 serves as the main sewage discharge channel for the photovoltaic equipment. When the dirt-removing component 710 moves along the third drainage channel 131, it can not only clear the third drainage channel 131 and prevent dirt from accumulating in the third drainage channel 131 and clogging it, but also accelerate the removal of dirt from the third drainage channel 131.

[0127] It should be noted that the two ends of the third drainage channel 131 can be connected to corresponding sewage pipes (not shown in the figure). When the dirt-draining component 710 moves back and forth along the third drainage channel 131, it can guide the dirt in the third drainage channel 131 from its two ends to the sewage pipes.

[0128] Further, see Figure 10 The outer wall of the dredging component 710 is provided with a plurality of third nozzles 711 spaced circumferentially. All the third nozzles 711 face different positions on the inner wall of the third drain trough 131. The third nozzles 711 are used to spray high-pressure water flow and / or high-pressure air flow to rinse the inner wall of the third drain trough 131.

[0129] With this configuration, on the one hand, the movement of the dirt-removing component 710 allows the dirt in the third drainage channel 131 to be discharged; on the other hand, the third nozzle 711 flushes away the stubborn dirt adhering to the inner wall of the third drainage channel 131 so that it can be discharged through the third drainage channel 131, thereby further reducing the risk of blockage of the third drainage channel 131 and improving the sewage discharge efficiency.

[0130] Specifically, the dredging component 710 is constructed as a rigid plate with a certain structural strength, such as a steel plate or iron plate. The dredging component 710 is vertically installed in the third drainage channel 131. A portion of the third nozzles 711 on the outer wall of the dredging component 710 sprays high-pressure water flow, while another portion of the third nozzles 711 sprays high-pressure air flow. The third nozzles 711 that spray high-pressure water flow and the third nozzles 711 that spray high-pressure air flow are alternately arranged along the outer wall of the dredging component 710.

[0131] With this setup, the high-pressure water flow can effectively disperse the dirt and grime adhering to the inner wall of the third drainage tank 131, and the high-pressure airflow can generate tiny bubbles in the water within the third drainage tank 131. When the bubbles burst, they release localized high pressure, further stripping away stubborn dirt and grime from the inner wall of the third drainage tank 131. The combination of these two methods can improve the cleaning efficiency and accelerate the removal of dirt and grime with the water flow within the third drainage tank 131, thereby improving the sewage discharge efficiency.

[0132] Furthermore, the unblocking device 700 also includes a third driving component 720, which drives the dredging component 710 to move along the third drainage channel 131. The photovoltaic equipment also includes a second detection device 20, which senses whether the operating environment of the photovoltaic module 200 is rainy weather, and the third driving component 720 is communicatively connected to the second detection device 20.

[0133] Specifically, the second detection device 20 can be set on the top of the edge beam 130. The second detection device 20 can be a rain sensor to measure the amount of rainfall in the environment to determine whether the environment is rainy. The second detection device 20 can also be a combination structure of camera and AI image recognition to directly analyze and collect images of rain or water accumulation, and combine deep learning to determine whether the environment is rainy.

[0134] Understandably, when the second detection device 20 detects that the photovoltaic module 200 is used in rainy weather, it means that some dirt on the light-receiving surface 201 of the photovoltaic module 200 will flow into the third drainage channel 131 under the washing of rainwater, causing rainwater containing dirt to accumulate quickly in the third drainage channel 131. At this time, the controller controls the third driving component 720 to drive the dirt-removing component 710 to move along the third drainage channel 131 based on the detection information of the second detection device 20, so as to discharge the sewage in the third drainage channel 131 in the first time, realize the automatic sewage discharge function, and also reduce the probability of the third drainage channel 131 being blocked.

[0135] Further, see Figure 8 , Figure 9 and Figure 10 The third driving component 720 includes a third sub-driving component (not shown in the figure), a third transmission rod 721 driven by the third sub-driving component, and a third limiting groove (not shown in the figure) provided on the side wall of the third drainage channel 131. The third transmission rod 721 extends in the transverse direction X and can be driven by the third sub-driving component to rotate around itself. The length of the third transmission rod 721 is the same as the length of the third drainage channel 131. The third sub-driving component can be a rotary driving component such as a motor. The dirt-draining component 710 is sleeved on the third transmission rod 721 and threadedly connected to the third transmission rod 721, and the dirt-draining component 710 is also slidably connected to the third limiting groove. It is easy to understand that the third driving component 720 as a whole can be understood as a lead screw transmission structure, which converts the rotational motion of the third sub-driving component into the accurate movement of the dirt-draining component 710 in the transverse direction X.

[0136] With the above-described structure, the dredging component 710 has only the degree of freedom of movement in the horizontal X direction, allowing the dredging component 710 to move accurately in the horizontal X direction to unclog the third drainage channel 131. This simplifies the overall structure of the third drive component 720 and greatly reduces the space occupied by the unclogging device 700 on the photovoltaic equipment.

[0137] See also some embodiments of this application. Figure 8 , Figure 9 and Figure 10 The photovoltaic equipment also includes a shading device 800 disposed on the edge beam 130. The shading device 800 includes a plurality of shading blades 810 distributed along the transverse X and opposite to the back surface 202 of the photovoltaic module 200. The shading blades 810 have a flattened state that is parallel to the back surface 202 and a light-transmitting state that is not parallel to the back surface 202.

[0138] When all the shading blades 810 are in a flattened state, all the shading blades 810 form a shading surface, and the vertical projection of the back surface 202 of all photovoltaic modules 200 relative to the shading surface is within the shading surface; when any shading blade 810 is in a light-transmitting state, a light-transmitting gap is formed between the light-transmitting shading blade 810 and the adjacent shading blade 810.

[0139] It is easy to understand that the shading blades 810 are spaced below the photovoltaic module 200.

[0140] With the above configuration, when all the shading blades 810 are in a flattened state, they form a shading surface, solving the glare problem in the indoor environment below the photovoltaic module 200. Furthermore, depending on the actual light transmission requirements of the indoor environment, one or more shading blades 810 can be in a transparent state, creating one or more light-transmitting gaps on all the shading blades 810, allowing for flexible control of the amount of light transmitted into the indoor environment and meeting diverse usage needs.

[0141] Furthermore, the shading blade 810 is configured to rotate around itself to switch between a flattened state and a light-transmitting state.

[0142] Specifically, see Figure 9 and Figure 12 The light-shielding device 800 includes a plurality of fourth driving members 830, each of which corresponds to a plurality of light-shielding blades 810. The driving end of the fourth driving member 830 is connected to the light-shielding blade 810 to drive the light-shielding blade 810 to rotate around its own axis, so that the light-shielding blade 810 switches between a flattened state and a light-transmitting state, and can also prevent adjacent light-shielding blades 810 from interfering with each other during movement.

[0143] Furthermore, see also Figure 8 , Figure 9 and Figure 10The light-shielding device 800 also includes a third mounting rod 820 extending in the transverse direction X. All light-shielding blades 810 are slidably connected to the third mounting rod 820. The light-shielding blades 810 have a vertical state relative to the backlight surface 202. All light-shielding blades 810 can maintain the vertical state and move along the third mounting rod 820 to retract to the end of the third mounting rod 820.

[0144] Specifically, the edge beam 130 also has a mounting groove 133 extending in the transverse direction X. The light-shielding device 800 also includes a fifth driving member (not shown in the figure) disposed in the mounting groove 133. The third mounting rod 820 is disposed parallel to the mounting groove 133. The driving end of the fifth driving member is connected to the third mounting rod 820 to drive the third mounting rod 820 to rotate around itself. The fifth driving member can be a motor or other rotary driving member. All the fourth driving members 830 are sleeved on the third mounting rod 820 and threadedly connected to the third mounting rod 820. The fourth driving member 830 is also slidably connected to the mounting groove 133. In this way, the third mounting rod 820, the fifth driving member, and the mounting groove 133 constitute a screw drive structure, which converts the rotational motion of the fifth driving member into the accurate movement of the fourth driving member 830 in the transverse direction X. This allows the fourth driving member 830 to drive the light-shielding blades 810 on it to maintain a vertical state and move along the third mounting rod 820 to retract to the end of the third mounting rod 820.

[0145] It is understandable that by keeping the light-shielding blades 810 vertical and moving them along the third mounting rod 820 to the end of the third mounting rod 820, collisions and interference between adjacent light-shielding blades 810 during the movement and retraction process can be avoided. At the same time, keeping all the light-shielding blades 810 vertical and retracting them to the end of the third mounting rod 820 can maximize the light transmission of the indoor environment and meet the indoor light transmission requirements.

[0146] Furthermore, the side of the light-shielding blade 810 closest to the light-shielding surface is coated with a reflective coating (not shown in the figure).

[0147] By utilizing the high reflectivity of the reflective coating, the reflectivity of the shading blades 810 can be improved, promoting power generation on the back surface 202 of the photovoltaic module 200 and improving the overall power generation efficiency of the photovoltaic equipment.

[0148] The reflective coating can be, but is not limited to, a metallic reflective coating, a flexible reflective film, etc. There are no specific restrictions.

[0149] See also some embodiments of this application. Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10The photovoltaic equipment also includes heat-insulating glass 30, which is disposed on the waterproof bracket 100 and is parallel to and spaced apart from the back surface 202 of all photovoltaic modules 200. An air cavity 40 is formed between the heat-insulating glass 30 and the back surface 202 of all photovoltaic modules 200, and a vacuum cavity 31 is formed inside the heat-insulating glass 30.

[0150] The heat-insulating glass 30 can be a double-glazed unit, creating a vacuum cavity 31 inside. The heat-insulating glass 30 is located below the photovoltaic module 200 and also below the shading blades 810. The transverse and longitudinal edges of the heat-insulating glass 30 can be respectively secured to the edge crossbeam 130 and the edge longitudinal beam 120.

[0151] By setting up the heat-insulating glass 30, an air cavity 40 is formed between the heat-insulating glass 30 and the backlight surface 202 of all photovoltaic modules 200. The thermal conductivity of the still air in the air cavity 40 is much lower than that of solid materials, which can effectively slow down heat conduction. Moreover, the air cavity 40 can suppress natural air convection and reduce heat exchange. The vacuum cavity 31 located below the air cavity 40 can greatly reduce the heat conduction and convection of gas molecules, so that there is basically only radiative heat transfer in the air cavity 40 and the vacuum cavity 31. The vacuum cavity 31 effectively blocks the heat conduction path.

[0152] Thus, the dual-cavity structure of the air cavity 40 and the vacuum cavity 31 inside the heat-insulating glass 30 constitutes a dual thermal resistance superposition structure, achieving efficient heat insulation, reducing indoor and outdoor heat exchange in the building where the photovoltaic module 200 is located, enhancing the building's thermal insulation performance, while also taking into account economy and reliability.

[0153] Additionally, see Figure 1 This application also provides a photovoltaic roof, which includes the photovoltaic equipment of any of the above embodiments, and the photovoltaic module 200 is installed on the roof 900 by a waterproof bracket 100.

[0154] The waterproof bracket 100 can be fixed to the roof 900 with expansion bolts, and a fourth sealing strip 140 is provided at the connection between the waterproof bracket 100 and the roof 900 to prevent water and dirt from seeping into the connection between the waterproof bracket 100 and the roof 900, thereby further improving the waterproof and dirt-proof performance of the photovoltaic equipment.

[0155] The fourth sealing strip 140 can be, but is not limited to, an elastic silicone strip, a sponge foam sealing strip, etc.

[0156] It is easy to understand that the photovoltaic roof of this application embodiment, because it is equipped with the above-mentioned photovoltaic equipment, also has the same technical effects brought by the photovoltaic equipment, that is, it has better waterproof performance and cleaning performance, and better power generation efficiency.

[0157] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0158] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A photovoltaic device, characterized by, include: Waterproof support frame, including the central longitudinal beam; Multiple photovoltaic modules are arranged horizontally on the waterproof bracket. The peripheral edge of each photovoltaic module includes a longitudinal edge, and a splicing part is formed between the longitudinal edges of two adjacent photovoltaic modules that are close to each other. The first water-blocking component includes a cover portion and a first water-blocking part connected to the cover portion and extending to the intermediate longitudinal beam. The cover portion covers the splicing portion and connects to the light-receiving surface of the photovoltaic module. A first drainage groove is formed inside the intermediate longitudinal beam that mates with the splicing portion. The first water-blocking part surrounds the opening of the first drainage groove.

2. The photovoltaic device of claim 1, wherein, The first water-blocking part and the covering part form two lamination grooves that are spaced apart along the lateral direction, and the longitudinal edges of two adjacent photovoltaic modules are respectively locked in the two lamination grooves.

3. The photovoltaic device of claim 1, wherein, The first water-blocking part is detachably connected to the intermediate longitudinal beam, and a first sealing strip is provided at the connection between the first water-blocking part and the intermediate longitudinal beam.

4. The photovoltaic device of claim 1, wherein, The waterproof bracket also includes an edge longitudinal beam, and the photovoltaic device also includes a second water-blocking component. The second water-blocking component includes a first covering part and a first guide part connected to the first covering part and extending to the edge longitudinal beam. The first covering part covers the longitudinal edge of the photovoltaic module located at the furthest point in the lateral direction. A second drainage groove is formed inside the edge longitudinal beam that is connected to the first guide part.

5. The photovoltaic device of claim 4, wherein, The first guide portion includes a first guide surface inclined toward the second drainage trough and a first folded edge bent relative to the first guide surface. The first guide surface is transitionally connected to the first covering portion, and the first folded edge is sealingly connected to the edge longitudinal beam.

6. The photovoltaic device according to any of claims 1 to 5, characterized in that, The waterproof bracket also includes an edge beam, and the photovoltaic device also includes a third water-blocking component. The third water-blocking component includes a second covering portion and a second flow guide portion connected to the second covering portion and extending to the edge beam. The second covering portion covers the entire lateral edge of the photovoltaic module, and a third drainage groove is formed inside the edge beam that is connected to the second flow guide portion.

7. The photovoltaic device of claim 6, wherein, The first drainage channel is connected to the third drainage channel.

8. The photovoltaic device of claim 6, wherein, The second guide portion includes a second guide surface inclined toward the third drainage trough and a second folded edge bent relative to the second guide surface. The second guide surface is transitionally connected to the second covering portion, and the second folded edge is sealingly connected to the edge beam.

9. A photovoltaic roof, characterized by The photovoltaic device includes any one of claims 1 to 8, wherein the photovoltaic module is mounted on the roof via the waterproof bracket.

10. The photovoltaic roof according to claim 9, characterized in that A fourth sealing strip is provided at the connection between the waterproof bracket and the roof.

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