Roof photovoltaic system

Abstract

The utility model belongs to the field of photovoltaic building integration, and discloses a roof photovoltaic system which comprises roof tiles, a plurality of fasteners, a plurality of supporting pieces, a plurality of pressing blocks and a plurality of photovoltaic assemblies. A plurality of concave grooves are formed in the roof tiles; the plurality of fasteners are respectively mounted in the sunken grooves; the bottoms of the supporting pieces are fixed to the roof tiles through fasteners respectively. The multiple pressing blocks are fixed to the tops of the supporting pieces correspondingly. And the plurality of photovoltaic modules are respectively fixed on the supporting piece through pressing blocks. According to the utility model, the photovoltaic assembly is fixed on the support member through the pressing block, and the support member is fixed on the roof tile through the cooperation of the plurality of fasteners and the recessed groove, so that not only can the structure of the roof tile be prevented from being damaged, but also the support member and the roof tile are connected into a whole through the plurality of fasteners, and a better fixing effect is achieved; the stability and reliability of the roof photovoltaic system are improved, and the failure of the photovoltaic system caused by the fact that the photovoltaic module is locally subjected to large external force when the roof photovoltaic system encounters external force such as strong wind is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic building integration, in particular to a rooftop photovoltaic system. Background Art

[0002] Building-integrated photovoltaic (BIPV) is a method of integrating solar photovoltaic (PV) technology with building structures. Its primary goal is to achieve energy self-sufficiency and reduce dependence on traditional energy sources. This technology not only directly converts sunlight into electricity but also integrates into the building, offering advantages such as space savings and cost reduction. By installing PV panels on building roofs to convert sunlight into electricity, it contributes to energy conservation and emission reduction, bringing solar power generation to the lives of ordinary residents.

[0003] At present, when installing photovoltaic modules in rooftop photovoltaic systems, the roof structure of the building is easily damaged at the connection point, resulting in poor bonding. This not only affects the safety of the building roof, but also the photovoltaic modules are not firmly connected to the building roof, resulting in poor stability of the photovoltaic system and easy damage when encountering external forces such as strong winds. Utility Model Content

[0004] The purpose of this application is to provide a rooftop photovoltaic system that not only avoids damaging the roof of the building but also has good connection stability.

[0005] The technical solutions provided in this application are as follows:

[0006] A rooftop photovoltaic system, comprising:

[0007] Roof tiles, each having a plurality of recessed grooves;

[0008] A plurality of fasteners are respectively installed in the recessed grooves;

[0009] a plurality of support members, the bottoms of which are respectively fixed to the roof tiles by the fasteners;

[0010] A plurality of pressing blocks are respectively fixed on the top of the supporting member;

[0011] A plurality of photovoltaic modules are fixed on the support member through the pressing blocks respectively.

[0012] In some embodiments, a plurality of the recessed grooves are spaced apart along the width direction of the roof tile;

[0013] The recessed groove extends along the length direction of the roof tile.

[0014] In some embodiments, a plurality of the support members are spaced apart along the length direction of the roof tile;

[0015] The support member is extended along the width direction of the roof tile.

[0016] In some embodiments, the support member includes a base plate, a connecting plate and a top plate, the bottom of the connecting plate is fixedly connected to the base plate, the top of the connecting plate is fixedly connected to the top plate, the base plate is fixed to the roof tile by the fastener, and the pressure block is fixed to the top plate by bolts.

[0017] In some embodiments, the cross section of the support member is Z-shaped.

[0018] In some embodiments, a cover plate is further included, and the cover plate is arranged to cover the gaps between the plurality of photovoltaic modules arranged adjacent to each other along the width direction of the roof tile.

[0019] In some embodiments, a waterproof strip is further included, and the waterproof strip is arranged in the gap between the plurality of photovoltaic modules adjacently arranged along the length direction of the roof tile.

[0020] In some embodiments, the roofing tile includes a plurality of color steel tiles, and the plurality of color steel tiles are spliced ​​along the width direction to form the roofing tile; a first locking structure is provided on one edge of the color steel tile along the width direction, and a second locking structure is provided on the other edge, and the first locking structure and the second locking structure can be mutually socketed and locked to splice two adjacent color steel tiles; the recessed groove is provided at the middle crest of the color steel tile.

[0021] In some embodiments, further comprising purlins, side supports, and center supports;

[0022] The bottom of the edge support is fixed on the purlin, and the top of the edge support is engaged and fixed with the first locking structure and the second locking structure to fix the edge of the color steel tile;

[0023] The bottom of the middle support is fixed on the purlin, and the top of the middle support is clamped with the outer side wall of the recessed groove to fix the middle part of the color steel tile.

[0024] In some embodiments, the middle support includes a first base and a first sliding member, the first base is fixed to the purlin, the lower end of the first sliding member is disposed on the first base and is slidable relative to the first base, and the upper end of the first sliding member is engaged with the outer side wall of the recessed groove;

[0025] The edge support includes a second base and a second sliding member, the second base is fixed on the purlin, the lower end of the second sliding member is arranged on the second base and can slide relative to the second base, and the upper end of the second sliding member is engaged and fixed with the first locking structure and the second locking structure.

[0026] The technical effect of the present application is that the support is fixed to the roof tile by the cooperation of multiple fasteners and the recessed groove, and multiple photovoltaic modules are fixed to the same support by means of a pressing block, which not only avoids damaging the structure of the roof tile, but also the support and the roof tile are connected into a whole by multiple fasteners, which has a better fixing effect, improves the overall stability and reliability of the roof photovoltaic system, and avoids failure of the photovoltaic system due to local large external forces on the photovoltaic modules when the roof photovoltaic system encounters external forces such as strong winds. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] Figure 1 This is a structural diagram of a rooftop photovoltaic system provided by a specific embodiment of the present application;

[0029] Figure 2 This is a partial structural diagram of a rooftop photovoltaic system provided by a specific embodiment of the present application;

[0030] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0032] Figure 5 This is a schematic diagram of the structure of the color steel tile provided in the specific embodiment of the present application;

[0033] Figure 6 It is a structural diagram of the middle support provided in a specific embodiment of the present application;

[0034] Figure 7 It is a structural diagram of the side support provided in a specific embodiment of the present application;

[0035] Figure 8 This is a structural diagram of the cooperation between the middle support and the recessed groove of the color steel tile provided in a specific embodiment of the present application;

[0036] Figure 9 This is a structural diagram of the side support and the locking structure of the color steel tile provided in a specific embodiment of the present application;

[0037] Figure 10 is a structural schematic diagram of a first sliding piece provided in a specific embodiment of the present application;

[0038] Figure 11 is a structural schematic diagram of a second sliding piece provided in a specific embodiment of the present application;

[0039] Figure 12 It is a structural schematic diagram of the third sliding piece provided in a specific embodiment of the present application.

[0040] Description of Figure Numbers:

[0041] 100, roof tile; 101, recessed groove; 110, color steel tile; 111, first locking edge structure; 112, second locking edge structure;

[0042] 200, fasteners;

[0043] 300, support member; 310, bottom plate; 320, connecting plate; 330, top plate;

[0044] 400, briquette; 500, photovoltaic module;

[0045] 610, cover plate; 620, waterproof strip; 621, base; 622, waterproof rib; 623, water guide groove;

[0046] 700, purlin;

[0047] 800, side support; 810, second base; 811, second sliding hole; 812, support portion; 820, second sliding member; 821, third clamping portion; 8211, third arc-shaped portion; 8212, extension portion; 822, third sliding portion; 8221, third upper sliding groove; 8222, third lower sliding groove;

[0048] 900, middle support; 910, first base; 911, first sliding hole; 920, first sliding piece; 921, first clamping portion; 922, first sliding portion; 9221, first upper sliding groove; 9222, first lower sliding groove; 923, first connecting portion; 930, second sliding piece; 931, second clamping portion; 932, second sliding portion; 9321, second upper sliding groove; 9322, second lower sliding groove; 933, second connecting portion. DETAILED DESCRIPTION

[0049] In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obstructing the description of the present application with unnecessary details.

[0050] In order to more clearly illustrate the application embodiments or technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive efforts.

[0051] To simplify the drawings, only the parts relevant to this application are schematically shown in each figure. They do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0052] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0053] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application.

[0054] In the embodiments shown in the drawings, directional indications (such as up, down, left, right, front, and back, etc.) are not absolute but relative when describing the structure and movement of each component, and are not used to limit the direction of the product in actual use.

[0055] In addition, in the description of this application, ordinal numbers, such as "first", "second", etc., are only used to distinguish and describe related objects, and cannot be understood as indicating or implying the relative importance or order between related objects.

[0056] According to the specific embodiments provided in this application, Figures 1 to 3 As shown, a rooftop photovoltaic system includes a roof tile 100, multiple fasteners 200, multiple support members 300, multiple pressing blocks 400, and multiple photovoltaic modules 500. The roof tile 100 is provided with multiple recessed grooves 101; multiple fasteners 200, which may be T-bolts, are respectively installed in the recessed grooves 101; the bottoms of the multiple support members 300 are respectively fixed to the roof tile 100 via the fasteners 200; multiple pressing blocks 400 are respectively fixed to the tops of the support members 300; and multiple photovoltaic modules 500 are respectively fixed to the support members 300 via the pressing blocks 400.

[0057] In this embodiment, the cross-section of the recessed groove 101 can be an inverted T-shape, and the support member 300 is fixed to the roof tile 100 by the cooperation of the fastener 200 (T-bolt) and the recessed groove 101. Multiple photovoltaic modules 500 are fixed to the same support member 300 through the pressing block 400. The connection between the support member 300 and the roof tile 100 can not only avoid damaging the structure of the roof tile 100, so that the roof photovoltaic system has a better waterproof effect, but also the support member 300 and the roof tile 100 are firmly connected by the fastener 200, which has a good fixing effect, thereby improving the stability and reliability of the roof photovoltaic system and avoiding failure of the roof photovoltaic system when encountering external forces such as strong winds.

[0058] In some embodiments, a plurality of recessed grooves 101 are spaced apart along the width direction of the roofing tile 100; the recessed grooves 101 extend along the length direction of the roofing tile 100. A plurality of support members 300 are spaced apart along the length direction of the roofing tile 100; the support members 300 extend along the width direction of the roofing tile 100.

[0059] The support member 300 extends along the width of the roof tile 100. A single support member 300 can be secured to the corresponding recessed groove 101 via multiple fasteners 200, thereby enhancing the connection stability between the support member 300 and the roof tile 100 without damaging the waterproof structure of the roof tile 100. Furthermore, multiple photovoltaic modules 500 can be secured to the same support member 300 via a pressing block 400, thereby forming a single integrated unit with the support member 300 and the roof tile 100. This provides a strong securing effect and prevents failure of the roof photovoltaic system due to excessive force on a localized photovoltaic module 500 when encountering external forces such as strong winds. Multiple support members 300 are spaced apart along the length of the roof tile 100, and a single photovoltaic module 500 can be supported by two or more spaced support members 300, thereby enhancing the installation stability of the photovoltaic module 500.

[0060] Multiple clamps 400 can be positioned along the upper extension of the support member 300, depending on the width of the photovoltaic module 500. These clamps 400 secure the photovoltaic module 500. The bottom of the clamps 400 are bolted to the support member 300, and a flange is provided on the top of the clamps 400 to secure the photovoltaic module 500. The clamps 400 include side clamps and center clamps. The side clamps have a flange on top, while the center clamps have two flanges. The side clamps secure the photovoltaic modules 500 at the edges of the photovoltaic system, while the center clamps secure the photovoltaic modules 500 in the center of the system.

[0061] In some embodiments, as Figure 2As shown, the support member 300 includes a base plate 310, a connecting plate 320, and a top plate 330. The bottom of the connecting plate 320 is fixedly connected to the base plate 310, and the top of the connecting plate 320 is fixedly connected to the top plate 330. The base plate 310 is fixed to the roof tile 100 via fasteners 200, and the pressure block 400 is fixed to the top plate 330 via bolts. The base plate 310 is provided with bolt holes. T-bolts pass through the recessed grooves 101 and through the bolt holes, and then are tightened with nuts to secure the support member 300. The connecting plate 320 of the support member 300 has a certain height, which can elevate the photovoltaic module 500 during installation, creating a certain gap between the roof tile 100 and the photovoltaic module 500, thereby achieving better heat dissipation in the photovoltaic system. The bottom plate 310 at the bottom of the support member 300 not only ensures the stability of the support member 300 but also facilitates the assembly of the support member 300 with the fasteners 200. A top plate 330 is provided on the top of the support member 300 to facilitate the stable placement of the pressing block 400 and the assembly of the pressing block 400 and the support member 300 .

[0062] Furthermore, the Z-shaped cross-section of the support member 300 improves the stability and bending resistance of the support member 300 and provides a solid support for the photovoltaic module 500. In addition, the Z-shaped cross-section of the support member 300 takes up less space, making it easier to arrange cables and helping to keep the entire photovoltaic system clean and safe.

[0063] In some embodiments, as Figure 1 As shown, the rooftop photovoltaic system further includes a cover plate 610, which is disposed over the gaps between the plurality of photovoltaic modules 500 adjacently disposed along the width direction of the roofing tile 100. The cover plate 610 extends along the length direction of the roofing tile 100. Covering the gaps between the photovoltaic modules 500, the cover plate 610 provides waterproofing along the length direction of the roofing tile 100.

[0064] Further, such as Figure 2 and Figure 4As shown, the rooftop photovoltaic system also includes a waterproof strip 620, which is disposed in the gaps between the plurality of photovoltaic modules 500 disposed adjacently along the length of the roofing tile 100. The waterproof strip 620 extends along the width of the roofing tile 100. The provision of the waterproof strip 620 between the plurality of photovoltaic modules 500 provides a waterproofing effect across the width of the roofing tile 100. The waterproof strip 620 includes a base 621 and a plurality of waterproof ribs 622 disposed on the base 621. The base 621 is a plate-like structure. The plurality of waterproof ribs 622 are spaced apart along the width of the base 621. The length of the waterproof ribs 622 is the same as that of the base 621. One side of the waterproof ribs 622 along the width direction is fixedly connected to the base 621. The other side of the waterproof ribs 622 along the width direction is inclined toward the surface of the base 621, thereby forming a water channel 623 between the waterproof ribs 622 and the base 621. Multiple water channels 623 arranged vertically can be formed between the plurality of waterproof ribs 622 and the base 621 to achieve multi-layer waterproofing. When the waterproof strip 620 is disposed between two adjacent photovoltaic modules 500, the side of the base 621 without the waterproof ribs 622 abuts the sidewall of one photovoltaic module 500, and the side of the waterproof ribs 622 away from the base 621 abuts the sidewall of the other photovoltaic module 500, thereby achieving a waterproof effect.

[0065] In some embodiments, as Figure 5 As shown, the roofing tile 100 includes a plurality of color steel tiles 110, and the plurality of color steel tiles 110 are spliced ​​along the width direction to form the roofing tile 100; a first locking structure 111 is provided on one edge of the color steel tile 110 along the width direction, and a second locking structure 112 is provided on the other edge; the first locking structure 111 and the second locking structure 112 can be mutually socketed and locked to splice two adjacent color steel tiles 110; a recessed groove 101 is provided at the middle crest of the color steel tile 110.

[0066] When two color-coated steel tiles 110 are joined, the first locking structure 111 of one color-coated steel tile 110 can be locked with the second locking structure 112 of the other color-coated steel tile 110 to join the two adjacent color-coated steel tiles 110. The locked first and second locking structures 111, 112 are used to support the photovoltaic modules 500 on top of them. Both the first and second locking structures 111, 112 are formed by bending, and both are curved hook-shaped structures. The openings of the curved hooks of the first and second locking structures 111, 112 are both downwardly facing. During assembly, the first locking structure 111 is sleeved over the second locking structure 112.

[0067] like Figure 2As shown, the rooftop photovoltaic system also includes a purlin 700, an edge support 800 and a middle support 900; the bottom of the edge support 800 is fixed to the purlin 700, and the top of the edge support 800 is engaged and fixed with the first locking structure 111 and the second locking structure 112 to fix the edge of the color steel tile 110; the bottom of the middle support 900 is fixed to the purlin 700, and the top of the middle support 900 is engaged with the outer wall of the recessed groove 101 to fix the middle part of the color steel tile 110.

[0068] like Figure 6 and Figure 8 As shown, the middle support 900 includes a first base 910 and a first sliding member. The first base 910 is fixed on the purlin 700. The lower end of the first sliding member is arranged on the first base 910 and can slide relative to the first base 910 along the length direction of the roof tile 100. The upper end of the first sliding member is provided with a first clamping portion 921 and a second clamping portion 931. The first clamping portion 921 is located on one side of the first base 910, and the second clamping portion 931 is located on the other side of the first base 910. The first clamping portion 921 and the second clamping portion 931 are respectively clamped with the outer side walls of the recessed groove 101 to fix the middle part of the color steel tile 110, thereby supporting and limiting the color steel tile 110.

[0069] like Figure 7 and Figure 9 As shown, the edge support 800 includes a second base 810 and a second sliding member 820. The second base 810 is fixed on the purlin 700. The lower end of the second sliding member 820 is arranged on the second base 810 and can slide relative to the second base 810 along the length direction of the roof tile 100. The upper end of the second sliding member 820 is provided with a third clamping portion 821. The third clamping portion 821 is engaged and fixed with the first locking structure 111 and the second locking structure 112 to fix the edge of the color steel tile 110.

[0070] In this embodiment, the middle part of the color steel tile 110 is fixed and supported by the middle support 900, and the edge of the color steel tile 110 is fixed and supported by the side support 800, so as to fix the color steel tile 110 on the roof purlin 700; the first sliding member in the middle support 900 is slidable relative to the first base 910, and the second sliding member 820 in the side support 800 is slidable relative to the second base 810. When the building is deformed, such as thermal expansion and contraction caused by temperature changes, earthquakes, strong winds and other natural disasters resulting in relative displacement between the roof tile 100 and the roof purlin 700, the relative sliding between the sliding member and the base can realize the adaptive adjustment of the roof tile 100 to the corresponding position, so as to better adapt to the deformation and vibration of the building, and help maintain the stability and safety of the building.

[0071] like Figure 6As shown, the first base 910 is provided with a first sliding hole 911 extending along the length of the roofing tile 100. The first sliding member is movably disposed within the first sliding hole 911. Providing the first sliding hole 911 on the first base 910 enables a sliding connection between the first sliding member and the first base 910, thereby simplifying the structure and reducing costs. The first sliding member can also use other structures to achieve a sliding connection with the first base 910, such as a sliding groove and a slider, which will not be further described here.

[0072] The first sliding member includes a first sliding piece 920 and a second sliding piece 930, which are separately arranged. The first sliding piece 920 and the second sliding piece 930 are sequentially arranged along the extension direction of the first sliding hole 911, and their lower ends are respectively movably connected to the first sliding hole 911. The upper end of the first sliding piece 920 is bent to one side to form a first clamping portion 921; the upper end of the second sliding piece 930 is bent to the other side to form a second clamping portion 931. One outer side wall of the recessed groove 101 is clamped to the first clamping portion 921 on the first sliding piece 920, and the other outer side wall of the recessed groove 101, which is arranged opposite, is clamped to the second clamping portion 931 on the second sliding piece 930. The first sliding piece 920 and the second sliding piece 930 are separately arranged and can slide independently relative to the first base 910, thereby improving the flexibility and adaptability of the position adjustment of the color steel tile 110. Furthermore, the first and second sliding plates 920, 930 are separately provided, distributing the weight of the color-coated steel tile 110 between them, thereby improving the structural stability and durability. If a problem occurs with one of the sliding plates, it can be replaced or repaired separately, reducing costs. Furthermore, the first and second clamping portions 921, 931 engage the outer wall of the recessed groove 101 at different locations along its length, enhancing the stability of the color-coated steel tile 110.

[0073] To facilitate the sliding connection between the first slide 920, the second slide 930 and the first base 910, as shown in FIG. Figure 10 As shown, the first sliding plate 920 further includes a first sliding portion 922, which is provided with a first upper sliding groove 9221 and a first lower sliding groove 9222. The first upper sliding groove 9221 opens upward, while the first lower sliding groove 9222 opens downward. The first upper sliding groove 9221 is slidably connected to the upper side wall of the first sliding hole 911, while the first lower sliding groove 9222 is slidably connected to the lower side wall of the first sliding hole 911. Both the first upper sliding groove 9221 and the first lower sliding groove 9222 are formed by bending the first sliding portion 922.

[0074] like Figure 11As shown, the second sliding plate 930 further includes a second sliding portion 932, which is provided with a second upper sliding groove 9321 and a second lower sliding groove 9322. The second upper sliding groove 9321 opens upward, while the second lower sliding groove 9322 opens downward. The second upper sliding groove 9321 is slidably connected to the upper side wall of the first sliding hole 911, while the second lower sliding groove 9322 is slidably connected to the lower side wall of the first sliding hole 911. The second upper sliding groove 9321 and the second lower sliding groove 9322 are both formed by bending the second sliding portion 932.

[0075] The first base 910 is L-shaped and includes a horizontal plate and a vertical plate. The horizontal plate is fixedly connected to the purlin 700 via bolts. The vertical plate is provided with a first sliding hole 911. The upper sidewall of the first sliding hole 911 refers to the area on the vertical plate above the first sliding hole 911, and the lower sidewall of the first sliding hole 911 refers to the area on the vertical plate below the first sliding hole 911. The first and second sliding plates 920 and 930 are both provided with upper and lower sliding grooves that respectively mate with the upper and lower sidewalls of the first sliding hole 911. This improves the stability of the sliding connection between the first and second sliding plates 920 and 930 and the first base 910, thereby ensuring the stability and reliability of the color steel tile 110.

[0076] Further, such as Figure 10 and Figure 11 As shown, the first sliding plate 920 further includes a first connecting portion 923, through which the first sliding portion 922 is fixedly connected to the first clamping portion 921; the second sliding plate 930 further includes a second connecting portion 933, through which the second sliding portion 932 is fixedly connected to the second clamping portion 931. Both the first connecting portion 923 and the second connecting portion 933 include horizontal connecting portions that can be used to support the color steel tile 110.

[0077] like Figure 7 As shown, the second base 810 is provided with a second sliding hole 811 extending along the length of the color steel tile 110, and the second sliding member 820 is movably disposed within the second sliding hole 811. Providing the second sliding hole 811 in the second base 810 enables a sliding connection between the second sliding member 820 and the second base 810, thereby simplifying the structure and reducing costs. The second sliding member 820 can also use other structures to achieve a sliding connection with the second base 810, such as using a sliding groove and a slider, which will not be further described here.

[0078] Two supporting parts 812 are provided at the upper end of the second base 810. The two supporting parts 812 are respectively located on both sides of the second base 810, and both supporting parts 812 are located below the third clamping part 821. The two supporting parts 812 can be used to support two adjacent color steel tiles 110 respectively.

[0079] Further, such as Figure 12 As shown, the second sliding member 820 also includes a third sliding portion 822, which includes a third upper sliding groove 8221 and a third lower sliding groove 8222. The third upper sliding groove 8221 opens upward, while the third lower sliding groove 8222 opens downward. The third upper sliding groove 8221 is slidably connected to the upper side wall of the second sliding hole 811, while the third lower sliding groove 8222 is slidably connected to the lower side wall of the second sliding hole 811. The upper and lower sliding grooves provided on the third sliding portion 822 respectively mate with the upper and lower side walls of the second sliding hole 811, thereby improving the stability of the sliding connection between the third sliding portion 822 and the second base 810, thereby ensuring the stability and reliability of the installation of the color steel tile 110. The third upper sliding groove 8221 and the third lower sliding groove 8222 are both formed by bending the third sliding portion 822.

[0080] The third engaging portion 821 includes a third curved portion 8211 and an extension portion 8212. The third curved portion 8211 is a hook-shaped structure located above the third sliding portion 822. One end of the third curved portion 8211 is fixedly connected to the third sliding portion 822, while the other end of the third curved portion 8211 is fixedly connected to the extension portion 8212. The third curved portion 8211 engages and secures with the curved hooks of the first and second locking structures 111, 112, thereby securely connecting the color-coated steel tile 110 and the second sliding member 820. The extension portion 8212 serves to enhance the engagement strength between the second sliding member 820 and the first or second locking structures 111, 112, and improves the secureness of the engagement.

[0081] Furthermore, the width of the extension portion 8212 along the length of the color steel tile 110 is smaller than the width of the third curved portion 8211 along the length of the color steel tile 110. The width of the extension portion 8212 is smaller than the width of the third curved portion 8211, and the extension portion 8212 is equivalent to extending the length of the third curved portion 8211. This extension portion 8212 increases the engagement strength of the edge support 800 without significantly increasing the engagement area, thereby preventing increased difficulty in locking the edge.

[0082] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0083] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be considered as the scope of protection of the present application.

Claims

1. A rooftop photovoltaic system, characterized in that: include: Roof tiles, each having a plurality of recessed grooves; A plurality of fasteners are respectively installed in the recessed grooves; A plurality of support members, the bottoms of which are respectively fixed to the roof tiles by the fasteners; A plurality of pressing blocks are respectively fixed on the top of the supporting member; A plurality of photovoltaic modules are fixed on the support member through the pressing blocks respectively.

2. A rooftop photovoltaic system according to claim 1, characterized in that: A plurality of the recessed grooves are arranged at intervals along the width direction of the roof tile; The recessed groove extends along the length direction of the roof tile.

3. A rooftop photovoltaic system according to claim 2, characterized in that: A plurality of the support members are spaced apart along the length direction of the roof tile; The support member is extended along the width direction of the roof tile.

4. A rooftop photovoltaic system according to claim 2, characterized in that: The support member includes a bottom plate, a connecting plate and a top plate. The bottom of the connecting plate is fixedly connected to the bottom plate, and the top of the connecting plate is fixedly connected to the top plate. The bottom plate is fixed to the roof tile by the fastener, and the pressure block is fixed to the top plate by bolts.

5. A rooftop photovoltaic system according to claim 4, characterized in that: The cross section of the support member is Z-shaped.

6. A rooftop photovoltaic system according to any one of claims 1 to 5, characterized in that: It also includes a cover plate, which is arranged to cover the gaps between the multiple photovoltaic components arranged adjacent to each other along the width direction of the roof tiles.

7. A rooftop photovoltaic system according to claim 6, characterized in that: It also includes a waterproof strip, which is arranged in the gap between a plurality of photovoltaic components adjacently arranged along the length direction of the roof tile.

8. A rooftop photovoltaic system according to any one of claims 1 to 5, characterized in that: The roofing tiles include multiple color steel tiles, and the multiple color steel tiles are spliced ​​along the width direction to form the roofing tiles; the color steel tiles are provided with a first locking structure on one edge along the width direction, and a second locking structure on the other edge; the first locking structure and the second locking structure can be mutually socketed and locked to splice two adjacent color steel tiles; the recessed groove is provided at the middle wave crest of the color steel tiles.

9. A rooftop photovoltaic system according to claim 8, characterized in that: It also includes purlins, side supports and center supports; The bottom of the edge support is fixed on the purlin, and the top of the edge support is engaged and fixed with the first locking structure and the second locking structure to fix the edge of the color steel tile; The bottom of the middle support is fixed on the purlin, and the top of the middle support is clamped with the outer side wall of the recessed groove to fix the middle part of the color steel tile.

10. A rooftop photovoltaic system according to claim 9, characterized in that: The middle support includes a first base and a first sliding member, wherein the first base is fixed to the purlin, the lower end of the first sliding member is disposed on the first base and is slidable relative to the first base, and the upper end of the first sliding member is engaged with the outer side wall of the recessed groove; The edge support includes a second base and a second sliding member, the second base is fixed on the purlin, the lower end of the second sliding member is arranged on the second base and can slide relative to the second base, and the upper end of the second sliding member is engaged and fixed with the first locking structure and the second locking structure.

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