Sloping roof photovoltaic system

Abstract

This application relates to a sloping roof photovoltaic system, including a photovoltaic module, at least one set of first tile-laying mechanisms, and at least one set of second tile-laying mechanisms. The photovoltaic module includes a plurality of photovoltaic components configured to be fixed on the sloping roof. At least one set of first tile-laying mechanisms is disposed on one side of the photovoltaic module along a first direction, and the first tile-laying mechanism includes a plurality of tiles that overlap sequentially along a second direction, wherein the first direction is parallel to the ridge extension direction of the sloping roof, and the second direction is the tilt direction of the sloping roof. At least one set of second tile-laying mechanisms is disposed on one side of the photovoltaic module along the second direction, and the second tile-laying mechanism includes at least one tile. The surfaces of both the first tile-laying mechanism and the second tile-laying mechanism are not higher than the surface of the photovoltaic module.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a sloping roof photovoltaic system. Background Technology

[0002] With the development of building-integrated photovoltaics (BIPV) technology, a new application method has emerged that directly replaces the original pitched roof tiles with conventional photovoltaic modules. This method aims to reduce system costs and simplify the structure.

[0003] In related technologies, when constructing a sloping roof photovoltaic system using conventional photovoltaic modules, the focus is usually only on the installation of the photovoltaic modules themselves. The transitions and finishing between the photovoltaic modules and the original ridge, eaves, and side boundaries are often insufficiently addressed, or traditional roof tiles are simply used to fill the gaps.

[0004] However, due to the significant differences in size, shape, and mounting surface between conventional photovoltaic modules and traditional roof tiles, this simple combination not only results in an uneven roof profile and an uncoordinated appearance, affecting the building's aesthetics, but also makes the junction between the photovoltaic module boundary and other parts of the roof a vulnerable point for waterproofing, posing a risk of leakage. Therefore, existing technologies lack a boundary treatment solution that can smoothly connect with conventional photovoltaic modules, effectively waterproof them, and improve the overall aesthetics. Utility Model Content

[0005] Therefore, it is necessary to provide a sloping roof photovoltaic system to address the problem of water leakage at the junction of photovoltaic module boundaries and sloping roofs.

[0006] This application provides a sloping roof photovoltaic system, the sloping roof photovoltaic system comprising:

[0007] A photovoltaic module, comprising multiple photovoltaic modules configured to be fixed to a sloping roof;

[0008] At least one set of first tile-laying mechanisms is provided on one side of the photovoltaic module along a first direction. The first tile-laying mechanism includes multiple tiles that are sequentially overlapped along a second direction. The first direction is parallel to the ridge extension direction of the sloping roof, and the second direction is the tilt direction of the sloping roof.

[0009] At least one set of second tile distribution mechanisms is disposed on one side of the photovoltaic module along the second direction, and the second tile distribution mechanism includes at least one tile;

[0010] The surfaces of both the first and second tile-distributing mechanisms are not higher than the surface of the photovoltaic module.

[0011] In one embodiment, the tile includes a first overlapping portion, a connecting portion, and a second overlapping portion connected in sequence. In two adjacent tiles, the first overlapping portion of one tile overlaps the second overlapping portion of the other tile, such that the outer surfaces of the two adjacent tiles are arranged in a stepped manner.

[0012] In one embodiment, the first overlap is configured as a downward hook and the second overlap is configured as an upward hook; the downward hook and the upward hook are adapted to each other so that the downward hook of one tile can engage with the upward hook of an adjacent tile.

[0013] In one embodiment, the sloping roof photovoltaic system further includes fixed purlins installed on the sloping roof, and the tiles are installed on the fixed purlins by fasteners.

[0014] In one embodiment, the photovoltaic module further includes a drainage purlin with drainage channels, and the photovoltaic module is fixed to the sloping roof by the drainage purlin.

[0015] In one embodiment, the drainage purlin at the edge of the photovoltaic module is provided with a limiting cavity, and the end of the tile in the second tile distribution mechanism is embedded in the limiting cavity so that the second tile distribution mechanism is connected and fixed to the photovoltaic module.

[0016] In one embodiment, the drainage purlin includes:

[0017] A first support structure is used to fix it to the sloping roof, and the first support structure has a receiving cavity;

[0018] A second support structure is provided inside the accommodating cavity. The top wall of the second support structure is used to support the photovoltaic tiles and the photovoltaic modules that are pressed together with the pressure block. The second support structure forms a first drainage channel that communicates with the outside. The first drainage channel is used to accommodate the locking member that locks the pressure block.

[0019] The top wall of the second support structure and the cavity wall of the accommodating cavity define the limiting cavity.

[0020] In one embodiment, the second support structure includes a support plate and a mounting member connected to each other, the support plate being the top wall of the second support structure, and the mounting member enclosing the first drainage channel.

[0021] In one embodiment, the first drainage channel includes a mating channel and a locking groove. The locking groove is used to accommodate the locking member. The dimension of the mating channel along the fourth direction is smaller than the dimension of the locking groove along the fourth direction, so that a stepped surface is formed at the connection between the mating channel and the locking groove. The stepped surface is used to restrict the locking member from disengaging from the locking groove. The fourth direction is the splicing direction of two adjacent photovoltaic modules.

[0022] In one embodiment, the cavity wall of the receiving cavity and the outer wall of the mounting member form a second drainage channel.

[0023] The aforementioned sloping roof photovoltaic system, by setting a first tile-laying mechanism and a second tile-laying mechanism on the sides of the photovoltaic module along the first and second directions respectively, achieves a smooth connection between the photovoltaic module and the sloping roof boundary, solving the problems of uneven contours and inconsistent appearance at the junction of the photovoltaic module and the sloping roof in the prior art. Furthermore, the first tile-laying mechanism consists of multiple tiles that overlap sequentially along the second direction, forming a continuous drainage path along the second direction. This allows rainwater to flow orderly along the overlapping direction of the tiles, preventing rainwater from accumulating at the junction of the photovoltaic module and the first tile-laying mechanism. Simultaneously, the surfaces of both the first and second tile-laying mechanisms are not higher than the surface of the photovoltaic module, ensuring that the photovoltaic modules are not obstructed and thus do not affect power generation efficiency, while also ensuring that the entire sloping roof forms a relatively flat drainage surface, reducing rainwater flow obstruction and further improving drainage smoothness. Attached Figure Description

[0024] Figure 1 This is a first-view structural schematic diagram of a sloping roof photovoltaic system provided in an embodiment of this application.

[0025] Figure 2 This is a structural schematic diagram of a sloping roof photovoltaic system provided in an embodiment of this application from a second perspective.

[0026] Figure 3 This is a schematic diagram of the structure of the photovoltaic module and the tile splicing located below the photovoltaic module along the second direction, as provided in the embodiments of this application.

[0027] Figure 4 This is a schematic diagram of the structure of the photovoltaic module and the tile splicing located above the photovoltaic module along the second direction, as provided in the embodiments of this application.

[0028] Figure 5 This is a schematic diagram of the structure of two adjacent photovoltaic modules spliced ​​together by pressure blocks, as provided in an embodiment of this application.

[0029] Figure 6 This is a schematic diagram of the overlapping structure of two adjacent tiles provided in an embodiment of this application.

[0030] Figure 7This is a schematic diagram of the structure of the tile provided in an embodiment of this application.

[0031] Figure 8 This is a schematic diagram of the structure of the support purlin provided in Embodiment 1 of this application.

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

[0033] Figure 10 This is a schematic diagram of the supporting purlin provided in Embodiment 2 of this application.

[0034] Figure 11 This is a first-view structural schematic diagram of the supporting purlin provided in Embodiment 3 of this application.

[0035] Figure 12 This is a second-view structural schematic diagram of the supporting purlin provided in Embodiment 3 of this application.

[0036] Figure 13 This is a schematic diagram of the assembly of the support purlin and the fastener provided in Embodiment 3 of this application.

[0037] Figure label:

[0038] 100. Photovoltaic module; 110. Laminated component; 120. Frame;

[0039] 200. Pressed block;

[0040] 300. Locking component; 310. Screw; 320. Nut;

[0041] 400. Drainage purlins;

[0042] 410. First supporting structure; 411. Side plate; 412. Base plate; 413. Accommodating cavity; 414. First limiting plate;

[0043] 420. Second support structure; 421. Support plate; 422. Mating channel; 423. Locking groove; 424. Connecting hole;

[0044] 500. Fasteners;

[0045] 600, tile distribution; 610, first overlapping part; 620, connecting part; 630, second overlapping part; 640, first tile distribution mechanism; 650, second tile distribution mechanism; 660, fixed purlin. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] This application provides a sloping roof photovoltaic system, comprising: a photovoltaic module, at least one set of first tile-spreading mechanisms 640, and at least one set of second tile-spreading mechanisms 650. The photovoltaic module includes a plurality of photovoltaic modules 100 configured to be fixed on the sloping roof. At least one set of first tile-spreading mechanisms 640 is disposed on one side of the photovoltaic module along a first direction, and the first tile-spreading mechanism 640 includes a plurality of tiles 600 that overlap sequentially along a second direction. The first direction is parallel to the ridge extension direction of the sloping roof, and the second direction is the tilt direction of the sloping roof. At least one set of second tile-spreading mechanisms 650 is disposed on one side of the photovoltaic module along the second direction, and the second tile-spreading mechanism 650 includes at least one tile 600. The surfaces of both the first tile-spreading mechanism 640 and the second tile-spreading mechanism 650 are not higher than the surface of the photovoltaic module.

[0053] The aforementioned sloping roof photovoltaic system, by setting a first tile-laying mechanism 640 and a second tile-laying mechanism 650 on the sides of the photovoltaic module along the first and second directions respectively, achieves a smooth connection between the photovoltaic module and the sloping roof boundary, solving the problems of uneven contours and inconsistent appearance at the junction of the photovoltaic module and the sloping roof in the prior art. Furthermore, the first tile-laying mechanism 640 is composed of multiple tiles 600 that overlap sequentially along the second direction, thus forming a continuous drainage path along the second direction. This allows rainwater to flow orderly along the overlapping direction of the tiles 600, preventing rainwater from accumulating at the junction of the photovoltaic module and the first tile-laying mechanism 640. Simultaneously, the surfaces of the first tile-laying mechanism 640 and the second tile-laying mechanism 650 are not higher than the surface of the photovoltaic module, ensuring that the photovoltaic module 100 is not obstructed, thus not affecting power generation efficiency, while also ensuring that the entire sloping roof forms a relatively flat drainage surface, reducing rainwater flow obstruction and further improving drainage smoothness.

[0054] In this embodiment, as Figure 1 As shown, a first set of tile distribution mechanism 640 is provided on both sides of the photovoltaic module along the first direction, and a second set of tile distribution mechanism 650 is provided on both sides of the photovoltaic module along the second direction.

[0055] In other embodiments, a first tile distribution mechanism 640 is provided on one side of the photovoltaic module along the first direction; and / or, a second tile distribution mechanism 650 is provided on one side of the photovoltaic module along the second direction.

[0056] In other embodiments, a first tile distribution mechanism 640 is provided on one side of the first photovoltaic module along the first direction; and / or, a second tile distribution mechanism 650 is provided on both sides of the photovoltaic module along the second direction.

[0057] In other embodiments, a first set of tile distribution mechanisms 640 are provided on both sides of the first photovoltaic module along the first direction; and / or, a second set of tile distribution mechanisms 650 is provided on one side of the photovoltaic module along the second direction.

[0058] In this embodiment, the tile 600 is a metal tile 600, made of corrosion-resistant metal materials such as zinc-aluminum-magnesium sheet. In other embodiments, the tile 600 may be a ceramic tile 600.

[0059] In one embodiment, such as Figures 1 to 7As shown, the tile 600 includes a first overlapping portion 610, a connecting portion 620, and a second overlapping portion 630 connected in sequence. In two adjacent tiles 600, the first overlapping portion 610 of one tile 600 overlaps with the second overlapping portion 630 of the other tile 600, so that the outer surfaces of the two adjacent tiles 600 are arranged in a stepped manner. By setting the first overlapping portion 610 and the second overlapping portion 630, the outer surfaces of the adjacent tiles 600 are arranged in a stepped manner. The stepped outer surfaces can be inclined in accordance with the direction of the sloping roof (i.e., the first tile mechanism 640 and the second tile mechanism 650 are inclined in the second direction). This not only prevents rainwater from seeping into the interior of the sloping roof from the gaps between the tiles 600, avoiding the risk of leakage, but also forms a guiding path along the second direction, guiding rainwater to flow downward along the surface of the tiles 600 in the second direction, reducing the accumulation of rainwater on the surface of the tiles 600 and ensuring smooth drainage.

[0060] In one embodiment, such as Figures 1 to 7 As shown, the first overlapping portion 610 is configured as a downward hook, and the second overlapping portion 630 is configured as an upward hook. The downward hook and the upward hook are adapted to each other so that the downward hook of one tile 600 can be engaged with the upward hook of the adjacent tile 600. Compared with a simple overlap, the first overlapping portion 610 and the second overlapping portion 630 are engaged by a hook, which makes the connection between adjacent tiles 600 tighter and more secure, preventing the overlapping of tiles 600 from loosening and separating due to wind, vibration and other factors. Moreover, the engaged structure can further block the path of rainwater seeping in from the gaps between tiles 600, thus improving waterproof sealing.

[0061] In one embodiment, such as Figures 1 to 7 As shown, the sloping roof photovoltaic system also includes a fixed purlin 660, which is installed on the sloping roof. The tile 600 is installed on the fixed purlin 660 by fasteners. The fixed purlin 660 provides an installation carrier for the tile 600, and the tile 600 is fixed to the fixed purlin 660 by fasteners to prevent the tile 600 from shifting or slipping on the sloping roof due to its own weight or external environmental influences.

[0062] In this embodiment, the first overlapping portion 610 and the second overlapping portion 630 are connected to the fixed purlin 660 by fasteners.

[0063] In one embodiment, such as Figures 1 to 7 As shown, the photovoltaic module also includes a drainage purlin 400 with a drainage channel, and the photovoltaic module 100 is fixed to the sloping roof via the drainage purlin 400. By setting the drainage purlin 400, the drainage purlin 400 not only provides fixed support for the photovoltaic module 100, but also constructs a drainage path through its own drainage channel, which can divert rainwater from the sloping roof.

[0064] In one embodiment, such as Figures 1 to 7 As shown, the drainage purlin 400 at the edge of the photovoltaic module has a limiting cavity. The end of the tile 600 in the second tile mechanism 650 is embedded in the limiting cavity to allow the second tile mechanism 650 to overlap and fix with the photovoltaic module. The limiting cavity and the end of the tile 600 fit together, making the connection between the second tile mechanism 650 and the photovoltaic module tighter and forming a joint, preventing gaps from appearing at the connection between the second tile mechanism 650 and the photovoltaic module that could cause rainwater to seep in. Moreover, the fitting structure ensures that the surface of the second tile mechanism 650 is never higher than the surface of the photovoltaic module, continuing the advantage of avoiding shading of the photovoltaic module 100. At the same time, combined with the drainage channel of the drainage purlin 400, rainwater at the connection between the tile 600 and the photovoltaic module can be discharged in a timely manner through the drainage purlin 400.

[0065] In one embodiment, such as Figures 7 to 13 As shown, the drainage purlin 400 includes a first support structure 410 and a second support structure 420. The first support structure 410 is used to fix to the sloping roof and has a receiving cavity 413. The second support structure 420 is disposed in the receiving cavity 413. The top wall of the second support structure 420 is used to support the tile 600 and the photovoltaic module 100 that is pressed and matched with the pressure block 200. The second support structure 420 forms a first drainage channel that communicates with the outside. The first drainage channel is used to accommodate the locking member 300 of the locking pressure block 200. The top wall of the second support structure 420 and the cavity wall of the receiving cavity 413 define a limiting cavity.

[0066] By fixing the first support structure 410 of the drainage purlin 400 to the sloping roof, a stable installation foundation is provided for the overall structure. A second support structure 420 is set in the accommodating cavity 413 of the first support structure 410. The second support structure 420 supports the photovoltaic module 100 and the tile 600. The first drainage channel formed by the second support structure 420 can accommodate the locking member 300. The first drainage channel, the locking member 300, and the pressure block 200 cooperate with each other to fix the photovoltaic module 100. The first drainage channel formed by the second support structure 420 can not only accommodate the locking member 300, but also drain water accumulated around the photovoltaic module 100.

[0067] In one embodiment, such as Figure 1 As shown, two adjacent drainage purlins 400 are spliced ​​together by connectors to connect the two adjacent first drainage channels, thereby forming a crisscrossing drainage network to ensure that accumulated water is discharged quickly and smoothly.

[0068] It should be noted that, as Figure 11As shown, the photovoltaic module 100 includes a laminate 110 and a frame 120, with the frame 120 fitted onto the laminate 110. The locking member 300 includes a screw 310 and a nut 320, with the nut 320 located within a locking groove 423. A pressure block 200 presses against the top surface of the frame 120. The screw 310 passes sequentially through the pressure block 200 and the mating channel 422, extending into the locking groove 423 and threadedly connecting to the nut 320, thereby fixing the frame 120 assembly onto the drainage purlin 400.

[0069] In one embodiment, such as Figures 7 to 13 As shown, the second support structure 420 includes a support plate 421 and a mounting component connected together. The support plate 421 is the top wall of the second support structure 420, and the mounting component encloses a first drainage channel. The support plate 421 of the second support structure 420 can directly support the frame 120 of the photovoltaic module 100 and the ends (first overlapping part and second overlapping part) of the tile 600, providing support and positioning for the photovoltaic module 100. The mounting component can accommodate the locking member 300 of the locking block 200, ensuring the stability of the pressing and fixing of the block 200 and the photovoltaic module 100. At the same time, the first drainage channel enclosed by the mounting component can quickly drain water around the photovoltaic module 100 and in the gaps, avoiding water residue. The second drainage channel constructed by the outer wall of the second support structure 420 and the cavity wall of the accommodating cavity 413 further expands the drainage path and improves the overall drainage capacity.

[0070] Specifically, such as Figures 7 to 13 As shown, the mounting component includes a mounting section and two vertical arms. The mounting section has a locking groove 423. The two vertical arms are arranged at intervals along a fourth direction, which is the splicing direction of two adjacent photovoltaic modules 100. The vertical arms are located at the opening of the locking groove 423 and connected to the groove wall of the locking groove 423. By setting the two vertical arms, the two vertical arms form a mating channel 422, and the space inside the locking groove 423 is connected to the outside through the mating channel 422.

[0071] In one embodiment, such as Figures 7 to 13As shown, the first drainage channel includes a mating channel 422 and a locking groove 423. The locking groove 423 is used to accommodate the locking member 300. The dimension of the mating channel 422 along the fourth direction is smaller than the dimension of the locking groove 423 along the fourth direction, so that a stepped surface is formed at the connection between the mating channel 422 and the locking groove 423. The stepped surface is used to abut against the nut 320 of the locking member 300 to restrict the locking member 300 from disengaging from the locking groove 423. The fourth direction is the splicing direction of two adjacent photovoltaic modules 100. By limiting the dimension of the mating channel 422 along the fourth direction to be smaller than the dimension of the locking groove 423 along the fourth direction, a stepped surface is formed at the connection between the mating channel 422 and the locking groove 423. The stepped surface can directly abut against the nut 320 housed in the locking groove 423. The physical limiting structure formed by the size difference restricts the nut 320 from disengaging in the direction away from the locking groove 423, thus preventing the locking component 300 from accidentally disengaging when the photovoltaic module 100 is installed, used, or subjected to external forces (such as vibration or wind).

[0072] In one embodiment, such as Figures 7 to 13 As shown, one end of the mating channel 422, away from the locking groove 423, extends along the fourth direction towards the cavity wall near the receiving cavity 413 to form a support plate 421. By extending the mating channel 422 away from the locking groove 423 to form the support plate 421, the support plate 421 and the mating channel 422 form an integrated structure. This eliminates the need for a separate support plate 421 and its assembly, simplifying the overall structural processing and assembly process of the second support structure 420 and reducing the difficulty of component processing and assembly errors.

[0073] It should be noted that the mounting component of the second support structure 420 includes two vertical arms. The vertical arms extend along the fourth direction toward the side of the cavity wall near the receiving cavity 413 to form a support plate 421. The two vertical arms extend to form two support plates 421, which are located on both sides of the mating channel 422 along the fourth direction.

[0074] In one embodiment, such as Figures 7 to 13 As shown, a connecting hole 424 is provided on the support plate 421 to connect the first drainage channel and the receiving cavity 413; and / or, a connecting hole 424 is provided on the channel wall (vertical arm of the mounting member) of the mating channel 422 to connect the first drainage channel and the receiving cavity 413; and / or, a connecting hole 424 is provided on the groove wall (mounting part of the mounting member) of the locking groove 423 to connect the first drainage channel and the receiving cavity 413. By providing connecting holes 424 on the support plate 421, and / or the channel wall of the mating channel 422, and / or the groove wall of the locking groove 423, the connecting holes 424 serve as water flow guidance paths, quickly guiding the accumulated water inside the second support structure 420 (inside the first drainage channel) into the receiving cavity 413.

[0075] Moreover, setting the connecting hole 424 does not require significant adjustments to the core structure of the first support structure 410 and the second support structure 420. Without affecting the load-bearing and fixing function of the drainage purlin 400 on the photovoltaic module 100 or damaging the original drainage channel foundation, the overall drainage efficiency can be improved through a simple hole structure.

[0076] In one embodiment, such as Figures 7 to 13 As shown, the connecting hole 424 is located on one of the side walls of the second support structure 420 arranged along the fourth direction, which is the splicing direction of two adjacent photovoltaic modules 100. The fourth direction, as the splicing direction of adjacent photovoltaic modules 100, is a key area where water easily accumulates. By centrally setting the connecting holes 424 on the side walls arranged along the fourth direction, the water flowing down from the splicing point of the modules can be directly guided, allowing the water to quickly enter the receiving cavity 413 through the connecting hole 424 along the splicing direction, thus preventing water from stagnating between the side wall of the second support structure 420 and the frame 120 of the photovoltaic module 100.

[0077] It should be noted that one of the side walls of the second support structure 420 arranged along the fourth direction includes a support plate 421, a channel wall of the mating channel 422, and a portion of the groove wall of the locking groove 423.

[0078] In one embodiment, such as Figures 7 to 13 As shown, the first support structure 410 includes two opposing side plates 411 and a bottom plate 412 connecting the two side plates 411. The bottom plate 412 and the two side plates 411 enclose a cavity 413. The enclosure structure of the two opposing side plates 411 and the bottom plate 412 provides a regular space with a certain load-bearing strength for the cavity 413, ensuring that the second support structure 420 can obtain stable support and positioning when placed in the cavity 413, and preventing the second support structure 420 from shifting or shaking when bearing the weight of the photovoltaic module 100 or under external force. Moreover, the cavity 413 formed by the side plates 411 and the bottom plate 412 has an intact cavity wall structure, which can better cooperate with the second support structure 420 to form a second drainage channel. When water enters the cavity 413, the intact cavity wall can guide the water to drain smoothly along the length of the cavity 413, reducing the retention of water in the cavity 413.

[0079] In one embodiment, such as Figures 7 to 13As shown, the first support structure 410 also includes a first limiting plate 414, which is located at the end of the side plate 411 away from the bottom plate 412. By setting the first limiting plate 414, which is located at the end of the side plate 411 away from the bottom plate 412, a lateral limiting structure can be formed at the top of the first support structure 410. When the second support structure 420 is located in the accommodating cavity 413, the first limiting plate 414 can block the second support structure 420, preventing the second support structure 420 from being dislodged from the accommodating cavity 413 due to external forces (such as the thrust or wind force during the installation of the photovoltaic module 100) during installation and use.

[0080] In one embodiment of this application, as Figure 7 As shown, the first support structure 410 includes a side plate 411 and a bottom plate 412.

[0081] In one embodiment of this application, as Figure 9 As shown, the first support structure 410 includes a side plate 411, a bottom plate 412, and a first limiting plate 414. The first limiting plate 414 is parallel to the fourth direction and extends towards the center line of the drainage purlin 400.

[0082] In one embodiment of this application, as Figure 11 As shown, the first support structure 410 includes a side plate 411, a bottom plate 412, and two first limiting plates 414. Each side plate 411 is connected to a corresponding first limiting plate 414, and the first limiting plate 414 is located at the end of the side plate 411 away from the bottom plate 412.

[0083] In one embodiment, the second support structure 420 further includes a second limiting plate disposed between the first limiting plate 414 and the support plate 421. The second limiting plate is connected to one end of the support plate 421 opposite to the mating channel 422. By providing the second limiting plate, the second limiting plate can also form a lateral limiting structure. When the second support structure 420 disengages from the receiving cavity 413, the second limiting plate and the first limiting plate 414 abut against each other, increasing the contact area between the first support structure 410 and the second support structure 420, and increasing the blocking force.

[0084] Similarly, in one embodiment, there may be one second limiting plate, and in other embodiments, there may be two second limiting plates, with the two second limiting plates and the two support plates 421 connected accordingly.

[0085] In one embodiment, the length of the second support structure 420 is not less than the length of the first support structure 410. The second support structure 420, with a length not less than that of the first support structure 410, can fully cover or exceed the length of the cavity 413 of the first support structure 410, ensuring that within the sloping roof area fixed by the first support structure 410, the support plate 421 of the second support structure 420 can provide full load support for the frame 120 of the photovoltaic module 100. Simultaneously, the length design allows the mating channel 422 and locking groove 423 of the second support structure 420 to match the first support structure 410 in the length direction, enabling the first drainage channel to be fully distributed along the length of the first support structure 410. This ensures that water accumulated around and in gaps around the photovoltaic module 100 can be smoothly drained along the first drainage channel without any drainage blind spots.

[0086] In one embodiment, the length of the second support structure 420 is less than the length of the first support structure 410. Multiple second support structures 420 are disposed within the receiving cavity 413 of the first support structure 410 and are spaced apart along the length of the receiving cavity 413. The shortened length and spaced arrangement of the second support structures 420 reduce the material usage of the second support structures 420 while ensuring their supporting function, thereby reducing the overall production cost and weight of the drainage purlin 400 and alleviating the load pressure on the sloping roof.

[0087] In one embodiment, such as Figure 13 As shown, the photovoltaic integration system also includes a fixing component 500, which has a zigzag structure. One end of the fixing component 500 is pressed against the first limiting plate 414 of the first support structure 410, and the other end is pressed against the sloping roof. The fixing component 500 and the sloping roof are then locked together by screws, thereby fixing the drainage purlin 400 to the sloping roof.

[0088] 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.

[0089] The above embodiments merely illustrate 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 sloping roof photovoltaic system, characterized in that, The sloping roof photovoltaic system includes: A photovoltaic module, comprising a plurality of photovoltaic modules (100) configured to be fixed to a sloping roof; At least one set of first tile-laying mechanisms (640) is provided on one side of the photovoltaic module along a first direction. The first tile-laying mechanism (640) includes a plurality of tiles (600) that overlap sequentially along a second direction. The first direction is parallel to the ridge extension direction of the sloping roof, and the second direction is the tilt direction of the sloping roof. At least one set of second tile distribution mechanisms (650) are disposed on one side of the photovoltaic module along the second direction, and the second tile distribution mechanism (650) includes at least one tile (600); The surfaces of the first tile distribution mechanism (640) and the second tile distribution mechanism (650) are not higher than the surface of the photovoltaic module.

2. The sloping roof photovoltaic system according to claim 1, characterized in that, The tile (600) includes a first overlapping portion (610), a connecting portion (620), and a second overlapping portion (630) connected in sequence. In two adjacent tiles (600), the first overlapping portion (610) of one tile (600) overlaps with the second overlapping portion (630) of the other tile (600), so that the outer surfaces of the two adjacent tiles (600) are arranged in a stepped manner.

3. The sloping roof photovoltaic system according to claim 2, characterized in that, The first overlap (610) is configured as a downward hook, and the second overlap (630) is configured as an upward hook; the downward hook and the upward hook are adapted to each other so that the downward hook of one of the tiles (600) can be engaged with the upward hook of the adjacent tile (600).

4. The sloping roof photovoltaic system according to claim 1, characterized in that, The sloping roof photovoltaic system also includes a fixed purlin (660) which is installed on the sloping roof, and the tile (600) is installed on the fixed purlin (660) by fasteners.

5. The sloping roof photovoltaic system according to claim 1, characterized in that, The photovoltaic module also includes a drainage purlin (400) with a drainage channel, and the photovoltaic module (100) is fixed to the sloping roof by the drainage purlin (400).

6. The sloping roof photovoltaic system according to claim 5, characterized in that, The drainage purlin (400) located at the edge of the photovoltaic module is provided with a limiting cavity, and the end of the tile (600) in the second tile distribution mechanism (650) is embedded in the limiting cavity so that the second tile distribution mechanism (650) is connected and fixed to the photovoltaic module.

7. The sloping roof photovoltaic system according to claim 6, characterized in that, The drainage purlin (400) includes: A first support structure (410) is used to fix it to the sloping roof, and the first support structure (410) has a receiving cavity (413); A second support structure (420) is provided in the accommodating cavity (413). The top wall of the second support structure (420) is used to support the tile (600) and the photovoltaic module (100) that is pressed and matched with the pressure block (200). The second support structure (420) forms a first drainage channel that communicates with the outside. The first drainage channel is used to accommodate the locking member (300) that locks the pressure block (200). The top wall of the second support structure (420) and the cavity wall of the receiving cavity (413) define the limiting cavity.

8. The sloping roof photovoltaic system according to claim 7, characterized in that, The second support structure (420) includes a support plate (421) and a mounting member connected to each other. The support plate (421) is the top wall of the second support structure (420), and the mounting member encloses the first drainage channel.

9. The sloping roof photovoltaic system according to claim 8, characterized in that, The first drainage channel includes a mating channel (422) and a locking groove (423). The locking groove (423) is used to accommodate the locking member (300). The dimension of the mating channel (422) along the fourth direction is smaller than the dimension of the locking groove (423) along the fourth direction, so that a stepped surface is formed at the connection between the mating channel (422) and the locking groove (423). The stepped surface is used to restrict the locking member (300) from disengaging from the locking groove (423). The fourth direction is the splicing direction of two adjacent photovoltaic modules (100).

10. The sloping roof photovoltaic system according to claim 8, characterized in that, The cavity wall of the accommodating cavity (413) and the outer wall of the mounting component form a second drainage channel.

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