Photovoltaic frame, photovoltaic module and roof photovoltaic system

Abstract

The invention discloses a photovoltaic frame, a photovoltaic module and a roof photovoltaic system, the photovoltaic frame is used for the photovoltaic module, and the photovoltaic frame comprises a first frame, a second frame and two third frames; wherein the two third frames are symmetrically arranged, the two ends of the first frame are connected with one ends of the two third frames respectively, the two ends of the second frame are connected with the other ends of the two third frames respectively, and a rectangular frame is defined by the first frame, the second frame and the two third frames; the tops of the two ends of the second frame in the length direction are flush with the top of the first frame or higher than the top of the first frame, and the tops of the two ends of the second frame in the length direction are flush with the tops of the two third frames or lower than the tops of the two third frames. According to the photovoltaic frame, it can be guaranteed that the corresponding cover plate is fully attached to the top of the third frame, the structure is stable and reliable, and the waterproof effect is good.

Description

Technical Field

[0001] The present application relates to a solar photovoltaic system, and in particular to a photovoltaic frame, a photovoltaic module and a roof photovoltaic system. Background Art

[0002] With the development of the photovoltaic industry, there are more and more large-scale ground power stations, and the excellent land resources for the construction of photovoltaic power stations are also decreasing. With the continuous promotion of green buildings in recent years, rooftop photovoltaic power stations have received more and more attention. When building a rooftop photovoltaic system on the roof, the waterproof effect of the roof and the fixing effect of the photovoltaic components are basic considerations.

[0003] Some existing rooftop photovoltaic systems usually include multiple photovoltaic modules arranged vertically and horizontally. The two end frames of the photovoltaic modules are respectively connected to the two end frames of the adjacent photovoltaic modules. The two side frames of the photovoltaic modules respectively correspond to the two side frames of the adjacent photovoltaic modules, and the tops of the two corresponding side frames are covered by a cover plate for waterproofing, etc. However, there will be a gap between the cover plate and the tops of the two corresponding side frames, affecting the waterproofing effect, etc. Summary of the invention

[0004] The purpose of this application is to propose a photovoltaic frame, a photovoltaic module and a roof photovoltaic system with a stable and reliable structure and good waterproof effect.

[0005] In order to solve at least one of the above technical problems, the technical solution of the present application is as follows:

[0006] According to a first aspect of the present application, a photovoltaic frame is provided for use in a photovoltaic module, the photovoltaic frame comprising: a first frame, a second frame and two third frames; wherein the two third frames are symmetrically arranged, the two ends of the first frame are respectively connected to one end of the two third frames, the two ends of the second frame are respectively connected to the other ends of the two third frames, and the first frame, the second frame and the two third frames form a rectangular frame; the tops of the two ends of the second frame in the length direction are flush with or higher than the top of the first frame, and the tops of the two ends of the second frame in the length direction are flush with or lower than the tops of the two third frames.

[0007] In a possible implementation of the first aspect above, a lap cover plate extending outward is provided on the top of the second frame, a plug-in plate is provided on the lap cover plate, the plug-in plate is located below the lap cover plate, and a plug-in groove is provided on the outer upper end of the first frame. When the second frame of a photovoltaic frame is used to correspond to the first frame of another photovoltaic frame, the plug-in groove is connected to its corresponding plug-in plate and the lap cover plate is overlapped on the top of the corresponding first frame.

[0008] In a possible implementation of the first aspect above, the plug-in slot and the plug-in board connected thereto are sealed by structural adhesive.

[0009] In a possible implementation of the first aspect above, a raised structure for positioning support is provided at the bottom of each third frame, and a frame support plate for support is provided at the lower end of one side in the length direction of each third frame, and the bottom of the frame support plate is flush with the bottom of the first frame and the bottom of the second frame respectively.

[0010] According to a second aspect of the present application, a photovoltaic assembly is provided, comprising: a photovoltaic frame, which is the photovoltaic frame described above; and a photovoltaic laminate, which is arranged in the photovoltaic frame.

[0011] According to a third aspect of the present application, a roof photovoltaic system is provided, comprising: a plurality of photovoltaic modules, the photovoltaic modules being the above-mentioned photovoltaic modules, the plurality of photovoltaic modules being used to be distributed in a plurality of rows and columns on the roof, the photovoltaic modules in each row being arranged in the transverse direction of the roof, the photovoltaic modules in each column being arranged in the longitudinal direction of the roof, the length direction of the second frame of each photovoltaic module being consistent with the transverse direction of the roof, and the length direction of the third frame of each photovoltaic module being consistent with the longitudinal direction of the roof; a plurality of longitudinal water gutters, the length direction of each longitudinal water gutters being consistent with the longitudinal direction of the roof; a plurality of waterproof cover plates, the length direction of each waterproof cover plate being consistent with the longitudinal direction of the roof; wherein, the corresponding photovoltaic modules in each column A corresponding first frame is formed between two adjacent photovoltaic components and is connected to a second frame. A pair of adjacent third frames is formed between two adjacent photovoltaic components in each row of photovoltaic components. Two adjacent columns of photovoltaic components respectively correspond to a longitudinal water gutter and a waterproof cover plate. Each longitudinal water gutter is used to support the bottom of each pair of adjacent third frames of the two corresponding columns of photovoltaic components. Each waterproof cover plate is used to cover and press on the top of each pair of adjacent third frames of the two corresponding columns of photovoltaic components. Each longitudinal water gutter is used to be connected to each purlin on the roof, and the length direction of each purlin is consistent with the horizontal direction of the roof.

[0012] In a possible implementation of the third aspect above, each longitudinal water gutter includes: a water gutter body, the length direction of the water gutter body is consistent with the longitudinal direction of the roof, and the water gutter body is provided with a main water gutter, two frame mounting grooves and two auxiliary water gutteres, all of which penetrate along the length direction and open upward, the main water gutter is located between the two frame mounting grooves, the two frame mounting grooves are located between the auxiliary water gutter, each frame mounting groove is respectively used to cooperate with the raised structure of each corresponding third frame, the frame support plate is arranged on the inner side of the third frame, and a support seat is respectively arranged on the top of one side of each frame mounting groove away from the main water gutter, each support seat extends toward the direction of the auxiliary water gutter close to it, and each support seat is used to cooperate with the frame support plate of each corresponding third frame.

[0013] In a possible implementation of the third aspect above, each waterproof cover plate is provided with a plurality of first fasteners, which are arranged in sequence and spaced apart along the length direction of the waterproof cover plate and are used to connect the waterproof cover plate to the corresponding longitudinal water trough thereunder.

[0014] In a possible implementation of the third aspect above, fastening baffles extending toward the middle are symmetrically arranged on both sides of the top of the main water tank, the lower end of each first fastener passes through between two opposite fastening baffles and is provided with a first limiter, the first limiter is located in the main water tank, the upper end of each first fastener passes through the waterproof cover and is provided with a first locking member, the first locking member is located above the waterproof cover, and the top of each first fastener is also provided with a waterproof cap that is sleeved on the outside of the first locking member.

[0015] In a possible implementation of the third aspect above, the roof photovoltaic system also includes: a plurality of transverse water gutters, the length direction of each transverse water gutters is consistent with the transverse direction of the roof, each transverse water gutters is provided with a fifth trough body which penetrates along its length direction and has an opening facing upward, the transverse water gutters correspond one-to-one with the corresponding second frame and first frame, each transverse water gutters is used to be arranged on the purlin and is located below the corresponding second frame and first frame, and one end of each transverse water gutters close to the corresponding longitudinal water gutters is located above the secondary water gutters so that the water in the fifth trough body can flow into the secondary water gutters.

[0016] In a possible implementation of the third aspect above, the bottoms of the corresponding second frame and the first frame are respectively pressed against the bottom surface of the fifth trough body of the corresponding transverse water trough.

[0017] In a possible implementation of the third aspect above, the roof photovoltaic system further includes: a plurality of fixing components, and each longitudinal gutter is connected to each purlin via a fixing component.

[0018] In a possible implementation of the third aspect above, the bottom of each transverse water trough is pressed against the top of the corresponding fixing assembly.

[0019] In a possible implementation of the third aspect above, each fixing assembly includes: two pressing blocks, the two pressing blocks are used to cooperate with two auxiliary water tanks of the corresponding longitudinal water tank in a one-to-one correspondence, and the two pressing blocks are used to be connected to the corresponding purlins.

[0020] In a possible implementation of the third aspect above, each pressing block is provided with a third trough body corresponding to the side wall of the auxiliary water tank, the third trough body penetrates the pressing block along the length direction of the auxiliary water tank and the opening faces downward, a lower pressure plate is provided on one side of the bottom of the pressing block and a foot seat is provided on the other side of the bottom, the foot seat is used to press against the purlin, and the lower pressure plate is used to press against the bottom surface inside the auxiliary water tank.

[0021] In a possible implementation of the third aspect above, the bottom of each transverse water trough is pressed against the top of the corresponding pressure block, and the top of each pressure block is provided with a second support platform for cooperating with the bottom of the transverse water trough, and each pressure block is connected to the corresponding purlin through a clamp, and a fourth trough body corresponding to the clamp is provided on the second support platform, and the fourth trough body passes through the second support platform along the length direction of the auxiliary water trough.

[0022] In a possible implementation of the third aspect above, the roof photovoltaic system also includes: multiple supporting brackets, the supporting brackets correspond one-to-one to the longitudinal water gutter, the length direction of each supporting bracket is consistent with the length direction of the longitudinal water gutter and is used to support the corresponding longitudinal water gutter, and each supporting bracket is used to be connected to each purlin respectively.

[0023] In a possible implementation of the third aspect above, a first trough body corresponding to the support bracket is provided on the bottom of each sink body, the first trough body penetrates along the length direction of the sink body, and the top of the support bracket is used to support the bottom surface of the first trough body.

[0024] In a possible implementation of the third aspect above, each supporting bracket is provided with a second trough body which penetrates along its length direction and has an opening facing upward, the supporting bracket is connected to each purlin through a second fastener, each second fastener is located on the bottom surface of the second trough body corresponding to it, and both sides of the top of the second trough body are respectively provided with a first supporting platform extending toward the middle thereof and used to cooperate with the bottom surface of the first trough body.

[0025] In a possible implementation of the third aspect above, the first tank body is located below the main water tank and the two frame mounting grooves respectively and between the two auxiliary water tanks.

[0026] The above technical solution of the present application has at least one of the following beneficial effects:

[0027] According to the photovoltaic frame of the present application, when multiple photovoltaic frames are distributed into multiple rows and columns, the first frame of one of the two adjacent photovoltaic frames in each column of photovoltaic frames is connected to the second frame of the other photovoltaic frame, and a pair of adjacent third frames is formed between the two adjacent photovoltaic frames in each row of photovoltaic frames. The tops of each pair of adjacent third frames are waterproofed by pressing with corresponding cover plates, and the tops of all third frames are located in the same plane, the tops of all second frames are located in the same plane, and the tops of all first frames are located in the same plane. When the corresponding cover plate is pressed against the top of each pair of adjacent third frames, if the tops of the two ends of the second frame in the length direction or the tops of the two ends of the first frame in the length direction are higher than the top of the third frame, a gap will be caused between the cover plate and the corresponding third frame, thereby affecting the waterproof effect, etc. Therefore, the tops of both ends of the second frame in the length direction of the present application are flush with or higher than the top of the first frame, and the tops of both ends of the second frame in the length direction are flush with or lower than the tops of the two third frames, that is, the third frame is higher than or flush with the first frame and the second frame, so that the cover plate is fully fitted with the top of each pair of adjacent third frames, avoiding the formation of a gap between the cover plate and the top of the third frame. Therefore, the photovoltaic frame of the present application can ensure that the corresponding cover plate is fully fitted with the top of each pair of adjacent third frames, improve the waterproof effect, and the structure is stable and reliable, and the service life is increased.

[0028] Furthermore, in the present application, a raised structure is provided at the bottom of the third frame, and a frame support plate is provided at the lower end of one side in the length direction of the third frame. The raised structure cooperates with the groove body on the corresponding sink support for positioning and support, and at the same time, the frame support plate cooperates with the table top on the sink support for support, thereby ensuring that the third frame is placed more stably, the structure is stable, and it is not easy to cause deformation of the frame and deformation of the sink support to affect the waterproof effect, etc., with high safety and reliability and improved service life.

[0029] According to the photovoltaic module of the present application, the above-mentioned photovoltaic frame is used to ensure that the corresponding cover plate is fully fitted with the top of each pair of adjacent third frames, avoiding the formation of gaps between the cover plate and the top of the third frame, thereby improving the waterproof effect, and the structure is stable and reliable, thereby increasing the service life, etc.

[0030] According to the roof photovoltaic system of the present application, the above-mentioned photovoltaic components are used to ensure that the waterproof cover plate is fully fitted with the top of each pair of adjacent third frames, avoiding the formation of gaps between the waterproof cover plate and the top of the third frames, thereby improving the waterproof effect, and the structure is stable and reliable, thereby increasing the service life, etc.

[0031] In addition, in the technical solution of the present application, unless otherwise specified, the technical solution can be implemented by adopting conventional means in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the structure of a photovoltaic frame according to an embodiment of the present application;

[0034] Figure 2 A top view of a photovoltaic frame according to an embodiment of the present application;

[0035] Figure 3 A schematic structural diagram of a first frame in an implementation manner of the present application;

[0036] Figure 4 A schematic structural diagram of a second frame in one implementation of the present application;

[0037] Figure 5 A schematic structural diagram of a third frame of an implementation method of the present application;

[0038] Figure 6 A schematic diagram of the connection between the first frame and the second frame in one implementation of the present application;

[0039] Figure 7 A schematic diagram of the structure of a photovoltaic module according to an embodiment of the present application;

[0040] Figure 8 A top view of a rooftop photovoltaic system according to an embodiment of the present application;

[0041] Fig. 9 This is a schematic structural diagram of a longitudinal water tank according to an embodiment of the present application;

[0042] Fig.10 This is a schematic structural diagram of a waterproof cover plate according to an embodiment of the present application;

[0043] Fig.11 A schematic diagram of the structure of a support bracket according to an embodiment of the present application;

[0044] Fig.12 A schematic diagram of the structure of the connection between two adjacent photovoltaic modules in each column of photovoltaic modules according to an embodiment of the present application;

[0045] Fig.13 This is a schematic structural diagram of a pressing block according to an embodiment of the present application;

[0046] Fig.14 A schematic diagram of the structure of the connection between two adjacent photovoltaic modules in each row of photovoltaic modules according to an implementation mode of the present application;

[0047] Fig.15 For one embodiment of the present application Fig.14 A partial enlarged view of the middle A;

[0048] Fig.16 A schematic diagram of the partial structure of a rooftop photovoltaic system according to an embodiment of the present application.

[0049] Description of the reference numerals in the accompanying drawings:

[0050] Photovoltaic module 1000; photovoltaic frame 1100; first frame 1110; plug-in slot 1111; first corner code slot 1112; first groove 1113; second frame 1120; overlap cover plate 1121; plug-in plate 1122; second corner code slot 1123; second groove 1124; third frame 1130; raised structure 1131; frame support plate 1132; third corner code slot 1133; third groove 1134; photovoltaic laminate 1200;

[0051] Longitudinal water tank 2000; main water tank 2001; frame mounting groove 2002; auxiliary water tank 2003; support seat 2004; fastening baffle 2005; first tank body 2006; water tank body 2007;

[0052] Waterproof cover plate 3000; first fastener 3001; first stopper 3002; first locking member 3003; waterproof cap 3004;

[0053] Horizontal water tank 4000; fifth tank body 4001;

[0054] Fixing assembly 5000; pressing block 5100; third tank 5101; foot seat 5102; lower pressing plate 5103; second supporting platform 5104; fourth tank 5105; clamping hoop 5200;

[0055] Support bracket 6000; second tank 6001; second fastener 6002; first support platform 6003;

[0056] Purlin 7000. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all of the embodiments, and are only used to explain the present application, and are not used to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0058] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "two ends", "both sides", "bottom", "top" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred elements must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present application. In addition, the terms "first", "second", "superior", "inferior", "primary", "secondary" and the like are only used for descriptive purposes and can be simply used to more clearly distinguish different components, but cannot be understood as indicating or implying relative importance.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In this application, the X direction and the Y direction are given. The X direction is the lateral direction of the roof, and the Y direction is the longitudinal direction of the roof. The X direction is perpendicular to the Y direction. The "upper", "lower" and the like in the text are all referred to the vertical direction.

[0061] See also Figures 1 to 7 As shown, the photovoltaic frame 1100 provided according to the embodiment of the present application is used in the photovoltaic assembly 1000. The photovoltaic frame 1100 includes: a first frame 1110, a second frame 1120 and two third frames 1130.

[0062] The two third frames 1130 are symmetrically arranged, the two ends of the first frame 1110 are respectively connected to one end of the two third frames 1130, the two ends of the second frame 1120 are respectively connected to the other end of the two third frames 1130, the two third frames 1130 are parallel, the first frame 1110 is parallel to the second frame 1120, the third frame 1130 is perpendicular to the first frame 1110 and the second frame 1120, and the first frame 1110, the second frame 1120 and the two third frames 1130 form a rectangular frame. The tops of the two ends of the second frame 1120 in the length direction are flush with or higher than the top of the first frame 1110, and the tops of the two ends of the second frame 1120 in the length direction are flush with or lower than the tops of the two third frames 1130.

[0063] It should be noted that the tops of both ends of the second frame 1120 in the length direction are flush with or higher than the top of the first frame 1110, and may be flush with or higher than the tops of both ends of the second frame 1120 in the length direction, or the top of the second frame 1120 is flush with or higher than the top of the first frame 1110; the tops of both ends of the second frame 1120 in the length direction are flush with or lower than the tops of the two third frames 1130, and may be flush with or lower than the tops of the two third frames 1130; the first frame 1110, the second frame 1120 and the third frame 1130 may be made of aluminum alloy frames, etc.

[0064] That is to say, when multiple photovoltaic frames 1100 are distributed in multiple rows and columns, the tops of all third frames 1130 are located in the same plane, the tops of all second frames 1120 are located in the same plane, the tops of all first frames 1110 are located in the same plane, and the first frame 1110 of one photovoltaic frame 1100 and the second frame 1120 of the other photovoltaic frame 1100 are matched and connected between two adjacent photovoltaic frames 1100 in each column of photovoltaic frames 1100, and a pair of adjacent third frames 1130 is formed between two adjacent photovoltaic frames 1100 in each row of photovoltaic frames 1100, and the corresponding cover plate is pressed against the top of each pair of adjacent third frames 1130. If the tops of the two ends of the length direction of the second frame 1120 or the tops of the two ends of the length direction of the first frame 1110 are higher than the tops of the third frames 1130, a gap will be caused between the cover plate and the corresponding third frame 1130, thereby affecting the waterproof effect, etc. Therefore, the tops of both ends of the second frame 1120 in the length direction of the present application are flush with the top of the first frame 1110, or the tops of both ends of the second frame 1120 in the length direction are higher than the top of the first frame 1110, the tops of both ends of the second frame 1120 in the length direction are flush with the tops of the two third frames 1130, or the tops of both ends of the second frame 1120 in the length direction are lower than the tops of the two third frames 1130, so that the cover plate is fully fitted with the top of each pair of adjacent third frames 1130, avoiding the formation of gaps between the cover plate and the top of the third frames 1130, thereby improving the waterproof effect.

[0065] Therefore, the photovoltaic frame 1100 of the present application can ensure that the corresponding cover plate is fully fitted with the top of each pair of adjacent third frames 1130, avoiding the formation of gaps between the cover plate and the top of the third frame 1130, thereby improving the waterproof effect, and the structure is stable and reliable, thereby increasing the service life.

[0066] In some embodiments, Figure 3 , 4 As shown in Figure 6, a lap cover plate 1121 extending outward is provided at the top of the second frame 1120, a plug plate 1122 is provided on the lap cover plate 1121, and the plug plate 1122 is located below the lap cover plate 1121, and a plug groove 1111 is provided at the upper end of the outer side of the first frame 1110. When the second frame 1120 of a photovoltaic frame 1100 is used to be connected to the first frame 1110 of another photovoltaic frame 1100, the plug groove 1111 is connected to the corresponding plug plate 1122 and the lap cover plate 1121 is overlapped on the top of the corresponding first frame 1110.

[0067] That is to say, the top of the second frame 1120 has a self-contained cover plate structure, the top of the overlapping cover plate 1121 is the top of the second frame 1120, and the top of the second frame 1120 is higher than the top of the first frame 1110. When two photovoltaic frames 1100 are connected, the second frame 1120 of one photovoltaic frame 1100 matches the first frame 1110 of the other photovoltaic frame 1100, and the plug-in board 1122 of the second frame 1120 is inserted into the plug-in slot 1111 of the corresponding first frame 1110, and the overlapping cover plate 1121 of the second frame 1120 is pressed against the top of the first frame 1110, so that the two photovoltaic frames 1100 are connected. As a result, the operation is convenient, the connection is tight, the gap at the connection can be reduced, the waterproof effect is better, and the structure is more stable and reliable.

[0068] In some embodiments, Figure 6 As shown, the plug slot 1111 and the plug board 1122 connected thereto are sealed by structural adhesive. The structural adhesive has the advantages of high strength, ability to withstand large loads, aging resistance, fatigue resistance, corrosion resistance, and stable performance. As a result, not only is the connection tighter and the waterproof effect better, but the structural strength is also high and the service life is longer. It can be understood by those skilled in the art that other sealants in the prior art can also be used to seal the plug slot 1111 and the plug board 1122 connected thereto.

[0069] In some embodiments, Figure 5 As shown, a protruding structure 1131 for positioning support is provided at the bottom of each third frame 1130, and a frame support plate 1132 for support is provided at the lower end of one side in the length direction of each third frame 1130, and the bottom of the frame support plate 1132 is flush with the bottom of the first frame 1110 and the bottom of the second frame 1120, respectively. Among them, the frame support plate 1132 can be set on the inner side of the third frame 1130. It should be noted that the inner side of the third frame 1130 is the side of the third frame 1130 close to the inside of the photovoltaic frame 1100, and the outer side of the third frame 1130 is the side of the third frame 1130 away from the inside of the photovoltaic frame 1100, and the first frame 1110 and the second frame 1120 are the same.

[0070] That is to say, a protruding structure 1131 is provided at the bottom of the third frame 1130, and a frame support plate 1132 is provided at the lower end of one side in the length direction of the third frame 1130. For example, when the photovoltaic module 1000 is installed on the corresponding sink support, the protruding structure 1131 of the third frame 1130 cooperates with the corresponding groove body on the sink support for positioning, limiting and fixed support, and at the same time, the frame support plate 1132 cooperates with the corresponding table surface on the sink support for support, so that the third frame 1130 is stably placed on the sink support. As a result, the operation is simpler, the structure is more stable, and it is not easy to cause deformation of the frame and the sink support to affect the waterproof effect, etc., the safety and reliability are high, and the service life is improved.

[0071] In some embodiments, Figures 3 to 5 As shown, the first frame 1110 is provided with a first corner code groove 1112 penetrating along the length direction thereof, the second frame 1120 is provided with a second corner code groove 1123 penetrating along the length direction thereof, and the third frame 1130 is provided with a third corner code groove 1133 penetrating along the length direction thereof. That is to say, in the photovoltaic frame 1100, the first corner code groove 1112 of the first frame 1110 is respectively connected with the third corner code grooves 1133 of the two third frames 1130, and the second corner code groove 1123 of the second frame 1120 is also respectively connected with the third corner code grooves 1133 of the two third frames 1130, and the two connected corner code grooves are connected and fixed by the corner code connector. As a result, the operation is more convenient and the structure is more compact and stable.

[0072] See also Figure 7 As shown, a photovoltaic assembly 1000 provided according to an embodiment of the present application includes: a photovoltaic frame 1100 and a photovoltaic laminate 1200 .

[0073] The photovoltaic frame 1100 is the photovoltaic frame 1100 described above, and the photovoltaic laminate 1200 is placed in the photovoltaic frame 1100. Figures 3 to 5As shown, the first frame 1110 is provided with a first groove 1113 penetrating along its length direction at the inner upper end, and the opening of the first groove 1113 faces the inside of the photovoltaic frame 1100; the second frame 1120 is provided with a second groove 1124 penetrating along its length direction at the inner upper end, and the opening of the second groove 1124 faces the inside of the photovoltaic frame 1100; the third frame 1130 is provided with a third groove 1134 penetrating along its length direction at the inner upper end, and the opening of the third groove 1134 faces the inside of the photovoltaic frame 1100; the first groove 1113 is respectively connected with the two third grooves 1134, and the second groove 1124 is also respectively connected with the two third grooves 1134; the first groove 1113, the second groove 1124 and the two third grooves 1134 form a rectangular annular groove for accommodating the photovoltaic laminate 1200. In addition, the photovoltaic laminate 1200 and each groove can also be sealed by a sealant.

[0074] Therefore, the photovoltaic assembly 1000 of the present application adopts the above-mentioned photovoltaic frame 1100, which can not only ensure that the corresponding cover plate is fully fitted with the top of each pair of adjacent third frames 1130, avoiding the formation of gaps between the cover plate and the top of the third frame 1130, thereby improving the waterproof effect, but also has a stable and reliable structure, thereby increasing the service life, etc.

[0075] See also Figures 8 to 16 As shown, a roof photovoltaic system provided according to an embodiment of the present application includes: a plurality of photovoltaic modules 1000, a plurality of longitudinal water gutters 2000 and a plurality of waterproof cover plates 3000.

[0076] Among them, the photovoltaic assembly 1000 is the above-mentioned photovoltaic assembly 1000, and a plurality of photovoltaic assemblies 1000 are used to be distributed in multiple rows and columns on a roof (not shown), each row of photovoltaic assemblies 1000 is arranged along the horizontal direction of the roof (i.e., the X direction), and each column of photovoltaic assemblies 1000 is arranged along the longitudinal direction of the roof (i.e., the Y direction). The length direction of the second frame 1120 of each photovoltaic assembly 1000 is consistent with the horizontal direction of the roof, and the length direction of the third frame 1130 of each photovoltaic assembly 1000 is consistent with the longitudinal direction of the roof, such as Figure 8As shown, each row of photovoltaic modules 1000 may include eight photovoltaic modules 1000, and each column of photovoltaic modules 1000 may include three photovoltaic modules 1000. The length direction of each longitudinal water gutter 2000 and the length direction of each waterproof cover plate 3000 are consistent with the longitudinal direction of the roof, and each waterproof cover plate 3000 is located above the longitudinal water gutter 2000 corresponding thereto. A first frame 1110 and a second frame 1120 are formed between two adjacent photovoltaic modules 1000 in each column of photovoltaic modules 1000, and a pair of adjacent third frames 1130 are formed between two adjacent photovoltaic modules 1000 in each row of photovoltaic modules 1000. Two adjacent columns of photovoltaic modules 1000 correspond to There is a longitudinal water gutter 2000 and a waterproof cover plate 3000, each longitudinal water gutter 2000 is used to support the bottom of each pair of adjacent third frames 1130 of the two corresponding columns of photovoltaic components 1000, each waterproof cover plate 3000 is used to cover the top of each pair of adjacent third frames 1130 in the two corresponding columns of photovoltaic components 1000, each longitudinal water gutter 2000 is used to be connected to each purlin 7000 on the roof, and the length direction of each purlin 7000 is consistent with the horizontal direction of the roof.

[0077] It should be noted that a plurality of purlins 7000 are usually arranged on the roof, the length direction of each purlin 7000 is consistent with the horizontal direction of the roof, and the plurality of purlins 7000 are arranged at equal intervals. The roof is usually an inclined surface, and the purlins 7000 on the top of the roof form a ridge, the ridge direction is parallel to the horizontal direction of the roof, and the longitudinal direction of the roof is perpendicular to the ridge direction. In addition, the longitudinal gutter 2000 and the waterproof cover plate 3000 can be made of aluminum alloy, etc. When the length of the waterproof cover plate 3000 and the longitudinal gutter 2000 is long, the waterproof cover plate 3000 and the longitudinal gutter 2000 can also be spliced ​​by multiple sections, for example, the waterproof cover plate 3000 can be spliced ​​by gluing, and the longitudinal gutter 2000 can be spliced ​​by corresponding connectors.

[0078] That is to say, the tops of all third frames 1130 are located in the same plane, the tops of all second frames 1120 are located in the same plane, and the tops of all first frames 1110 are located in the same plane. When the waterproof cover 3000 is pressed on the tops of each pair of adjacent third frames 1130 in the two corresponding columns of photovoltaic modules 1000, since the tops of both ends of the length direction of the second frame 1120 are flush with the top of the first frame 1110, or the tops of both ends of the length direction of the second frame 1120 are higher than the top of the first frame 1110, The tops of both ends of the second frame 1120 in the length direction are flush with the tops of the two third frames 1130, or the tops of both ends of the second frame 1120 in the length direction are lower than the tops of the two third frames 1130, so that the contact area between the waterproof cover 3000 and the third frames 1130 is large, so that the waterproof cover 3000 is fully fitted with the tops of each pair of adjacent third frames 1130, avoiding the formation of gaps between the cover and the tops of the third frames 1130, thereby improving the waterproof effect, and the connection is tighter, the fastening effect is good, and the structural strength is also improved.

[0079] Therefore, the roof photovoltaic system of the present application adopts the above-mentioned photovoltaic assembly 1000, which can not only ensure that the waterproof cover plate 3000 is fully fitted with the top of each pair of adjacent third frames 1130, avoiding the formation of gaps between the waterproof cover plate 3000 and the top of the third frame 1130, thereby improving the waterproof effect, but also has a stable and reliable structure, increased service life, etc., which facilitates better use in photovoltaic building integration (Building Integrated Photovoltaic, BIPV).

[0080] In some embodiments, a protruding structure for positioning support is provided at the bottom of each third frame, and a frame support plate for support is provided at the lower end of one side in the length direction of each third frame, and the bottom of the frame support plate is flush with the bottom of the first frame and the bottom of the second frame respectively. Figures 8 to 16As shown, each longitudinal water tank 2000 includes: a water tank body 2007 . Among them, the length direction of the sink body 2007 is consistent with the longitudinal direction of the roof, and the sink body 2007 is provided with a main sink 2001, two frame mounting grooves 2002 and two auxiliary sinks 2003, which are all penetrated along the length direction and opened upward. The main sink 2001 is located between the two frame mounting grooves 2002, and the two frame mounting grooves 2002 are located between the auxiliary sinks 2003. Each frame mounting groove 2002 is respectively used to cooperate with the protruding structure 1131 of each corresponding third frame 1130, and the frame support plate 1132 is arranged on the inner side of the third frame 1130. A support seat 2004 is respectively arranged on the top of one side of each frame mounting groove 2002 away from the main sink 2001, and each support seat 2004 extends toward the direction of the auxiliary sink 2003 close to it, and each support seat 2004 is used to cooperate with the frame support plate 1132 of each corresponding third frame 1130. The width of the support seat 2004 should be slightly larger than the width of the frame support plate 1132 to ensure that the support seat 2004 better supports the frame support plate 1132.

[0081] That is to say, the main water tank 2001 and the two auxiliary water tanks 2003 of the longitudinal water tank 2000 are used to collect and guide rainwater respectively, and the frame support plate 1132 will not affect the main water tank 2001. When the roof photovoltaic system is subjected to a large load, the photovoltaic module 1100 is subjected to downward pressure, and the photovoltaic laminate 1200 will sag downward, so that the upper end of the third frame 1130 tilts inward, and the lower end of the third frame 1130 tilts outward. Therefore, the protruding structures 1131 of each pair of adjacent third frames 1130 correspond one-to-one to the two frame mounting grooves 2002 on the longitudinal water tank 2000 below them, and the frame support plates 1132 of each pair of adjacent third frames 1130 correspond one-to-one to the two support seats 2004 on the longitudinal water tank 2000 below them, and each protruding structure 1131 is respectively inserted into the corresponding frame mounting groove 2002 for positioning, limiting and fixed support, and each frame support plate 1132 is respectively pressed against the corresponding support seat 2004 for support, so that each pair of adjacent third frames 1130 is stably placed on the water tank support member, which can effectively limit the deformation of the frame, etc. As a result, the operation is simpler, the structure is more stable, and it is not easy to cause deformation of the frame and the longitudinal water tank 2000 to affect the waterproof effect, etc., with high safety and reliability, and improved service life.

[0082] In some embodiments, Fig.10 , 14As shown in Figures 15 and 15, a plurality of first fasteners 3001 are provided on each waterproof cover plate 3000, and the plurality of first fasteners 3001 are sequentially arranged at intervals along the length direction of the waterproof cover plate 3000, and the plurality of first fasteners 3001 are used to connect the waterproof cover plate 3000 with the corresponding longitudinal water trough 2000 thereunder. In other words, each waterproof cover plate 3000 is connected with the corresponding longitudinal water trough 2000 thereunder through the plurality of first fasteners 3001, so that the waterproof cover plate 3000 is pressed against the top of each pair of adjacent third frames 1130 corresponding thereto, and each protruding structure 1131 is respectively inserted into the corresponding frame mounting groove 2002 for positioning, limiting and fixed support, and each frame support plate 1132 is respectively pressed against the corresponding support seat 2004 for support, so that the operation is more convenient, and the structure is more stable and reliable.

[0083] In some embodiments, Fig.10 , 14 As shown in Figures 1 to 16, fastening baffles 2005 extending toward the middle are symmetrically arranged on both sides of the top of the main water tank 2001, and the lower end of each first fastener 3001 passes through between two opposite fastening baffles 2005 and is provided with a first stopper 3002, and the first stopper 3002 is located in the main water tank 2001. The upper end of each first fastener 3001 passes through the waterproof cover plate 3000 and is provided with a first locking member 3003, and the first locking member 3003 is located above the waterproof cover plate 3000. The top of each first fastener 3001 is also provided with a waterproof cap 3004 sleeved outside the first locking member 3003. For example, the first fastener 3001 is a bolt, the first stopper 3002 is the head of the bolt, the first locking member 3003 is a nut arranged on the bolt, and the waterproof cap 3004 is a waterproof nut. Waterproof glue can also be applied between the waterproof nut and the waterproof cover plate 3000 for sealing.

[0084] That is, the frame support plate 1132 and the fastening baffle 2005 are respectively located on both sides of the corresponding third frame 1130, and do not affect each other; the distance between the two opposite fastening baffles 2005 is greater than the outer diameter of the first fastener 3001 and smaller than the outer diameter of the first stopper 3002, so that the first stopper 3002 is limited in the main water tank 2001 and can only move along the length direction of the main water tank 2001, and the first stopper 3002 is pressed against the two fastening baffles 2005, and the waterproof cover 3000 is locked by each nut. Therefore, the operation is more convenient, the structure is more compact and stable, and the waterproof cap 3004 can also prevent the first locking member 3003 from being eroded by rainwater.

[0085] In some embodiments, Fig.12 , 14As shown in Figures 1 to 16, the roof photovoltaic system further includes: a plurality of transverse water tanks 4000. The length direction of each transverse water tank 4000 is consistent with the transverse direction of the roof, and each transverse water tank 4000 is provided with a fifth tank body 4001 penetrating along its length direction and opening upward, and the transverse water tank 4000 corresponds to the corresponding second frame 1120 and the first frame 1110 one by one, and each transverse water tank 4000 is used to be arranged on the purlin 7000 and located below the corresponding second frame 1120 and the first frame 1110, and the bottom of the corresponding second frame 1120 and the first frame 1110 are respectively pressed against the bottom surface of the fifth tank body 4001 of the corresponding transverse water tank 4000, and one end of each transverse water tank 4000 close to the corresponding longitudinal water tank 2000 is located above the auxiliary water tank 2003, so that the water in the fifth tank body 4001 can flow into the auxiliary water tank 2003. The corresponding second frame 1120 and the first frame 1110 can be connected through the structure of the overlapping cover plate 1121, the plug-in plate 1122 and the plug-in slot 1111.

[0086] That is, each corresponding second frame 1120 and first frame 1110 has a corresponding horizontal water tank 4000 below, and the bottom of the corresponding second frame 1120 and first frame 1110 is pressed against the bottom surface of the fifth tank body 4001 of the corresponding horizontal water tank 4000, and one end of each horizontal water tank 4000 close to the corresponding longitudinal water tank 2000 is located above the auxiliary water tank 2003, so that rainwater in the fifth tank body 4001 can flow into the auxiliary water tank 2003. Figures 14-15 For reference, by setting up a transverse water gutter 4000, on the one hand, rainwater leaking from the roof photovoltaic system can be gathered and channeled, and the rainwater in the fifth trough body 4001 of the transverse water gutter 4000 can flow freely in the horizontal direction, so that the rainwater in the fifth trough body 4001 can flow into the auxiliary water gutter 2003 of the longitudinal water gutter 2000. On the other hand, the corresponding second frame 1120 and the first frame 1110 can also be supported to share the load of the longitudinal water gutter 2000, reduce the risk of bending and deformation of the frame and the longitudinal water gutter 2000, improve the structural strength and bending resistance of the roof photovoltaic system, and have higher safety and reliability.

[0087] In some embodiments, Figures 14 to 16 As shown, the roof photovoltaic system further includes: a plurality of fixing components 5000. Each longitudinal water gutter 2000 is connected to each purlin 7000 through a fixing component 5000. The bottom of each transverse water gutter 4000 can also be pressed against the top of the fixing component 5000 corresponding thereto.

[0088] That is to say, on the one hand, the fixing component 5000 connects and fixes the longitudinal water gutter 2000 and the purlin 7000, and on the other hand, the bottom of the transverse water gutter 4000 is pressed against the top of the corresponding fixing component 5000, and the fixing component 5000 can also support the transverse water gutter 4000, which is more convenient to operate and has higher structural strength and bending resistance.

[0089] In some embodiments, Figures 13-16 As shown, each fixing assembly 5000 includes: two pressing blocks 5100. The two pressing blocks 5100 are used to match the two auxiliary water tanks 2003 of the corresponding longitudinal water tank 2000 one by one, and the two pressing blocks 5100 are used to connect the corresponding purlin 7000. In other words, the two pressing blocks 5100 are installed on the purlin 7000, and the two pressing blocks 5100 respectively press the two auxiliary water tanks 2003, so that the longitudinal water tank 2000 is fixed on the purlin 7000, so that the operation is more convenient, the force is more uniform, and the structure is more stable.

[0090] Furthermore, each pressing block 5100 is provided with a third trough body 5101 corresponding to the side wall of the auxiliary water tank 2003, the third trough body 5101 penetrates the pressing block 5100 along the length direction of the auxiliary water tank 2003 and the opening faces downward, a foot seat 5102 is provided on one side of the bottom of the pressing block 5100 and a lower pressing plate 5103 is provided on the other side of the bottom thereof, the foot seat 5102 is used to press against the purlin 7000, and the lower pressing plate 5103 is used to press against the bottom surface in the auxiliary water tank 2003. Each pressing block 5100 and its corresponding purlin 7000 can be connected by a clamp 5200 or other fasteners.

[0091] That is to say, the side wall of the auxiliary water tank 2003 is inserted into the third tank body 5101 of the pressure block 5100, the lower pressure plate 5103 is pressed against the bottom surface inside the auxiliary water tank 2003, the foot 5102 is pressed against the purlin 7000, and the pressure block 5100 is connected to the purlin 7000 through the clamp 5200, so that the longitudinal water tank 2000 is fixed on the purlin 7000, so that the operation is more convenient and the structure is more compact and stable.

[0092] Furthermore, the bottom of each transverse water trough 4000 is pressed against the top of the corresponding pressing block 5100, and the top of each pressing block 5100 is provided with a second supporting platform 5104 for cooperating with the bottom of the transverse water trough 4000, and the second supporting platform 5104 is provided with a fourth trough body 5105 corresponding to the clamp 5200, and the fourth trough body 5105 penetrates the second supporting platform 5104 along the length direction of the auxiliary water trough 2003.

[0093] That is to say, on the one hand, the bottom surface of each horizontal water trough 4000 is pressed against the surface of the second supporting platform 5104, which increases the contact area, ensures that the horizontal water trough 4000 is more stable, greatly reduces the risk of frame deformation, and has a more stable structure. On the other hand, the clamp 5200 can be hidden in the fourth trough body 5105 and will not affect the horizontal water trough 4000, and the structure is more compact.

[0094] In some embodiments, Fig.10 , 14 As shown in FIG. 15 , the roof photovoltaic system further includes: a plurality of support brackets 6000. Among them, the support brackets 6000 correspond to the longitudinal water troughs 2000 one by one, the length direction of each support bracket 6000 is consistent with the length direction of the longitudinal water trough 2000, each support bracket 6000 is used to support the longitudinal water trough 2000 corresponding thereto, each support bracket 6000 is used to be connected to each purlin 7000 respectively, the support bracket 6000 can be made of steel, the length of each support bracket 6000 can be consistent with the length of the longitudinal water trough 2000, and each support bracket 6000 can also be formed by splicing multiple sections. A first trough body 2006 corresponding to the support bracket 6000 is provided at the bottom of each water trough body 2007, the first trough body 2006 penetrates along the length direction of the water trough body 2007, and the top of the support bracket 6000 is used to support the bottom surface of the first trough body 2006.

[0095] That is to say, the support bracket 6000 supports the longitudinal water trough 2000, shares the load of the longitudinal water trough 2000, and improves the strength and bending resistance of the longitudinal water trough 2000. Moreover, the support bracket 6000 is located in the longitudinal water trough 2000, and the structure is more compact and stable, and the load-bearing capacity is higher.

[0096] Furthermore, each supporting bracket 6000 is provided with a second trough body 6001 which penetrates along its length direction and has an opening facing upwards. The supporting bracket 6000 is connected to each purlin 7000 through a second fastener 6002 respectively. Each second fastener 6002 is located on the bottom surface of the second trough body 6001 corresponding to it. Both sides of the top of the second trough body 6001 are respectively provided with a first supporting platform 6003 extending toward the middle thereof and used to cooperate with the bottom surface of the first trough body 2006.

[0097] That is to say, the two first supporting platforms 6003 support the longitudinal water tank 2000 respectively, and the second fastener 6002 passes through between the two first supporting platforms 6003 and connects the supporting bracket 6000 with the purlin 7000, so that the structure is simple and the operation is more convenient and quick.

[0098] In addition, the second fastener 6002 is provided with a second limit member (not shown) and a second locking member (not shown). The second fastener 6002 can be a bolt, the second limit member is the head of the bolt, and the second locking member is a nut set on the bolt.

[0099] In some embodiments, Fig.15 As shown, the first tank body 2006 is located below the main tank 2001 and the two frame mounting slots 2002 and between the two auxiliary tanks 2003. Fig.15 For reference, two frame mounting grooves 2002 are symmetrically located on both sides of the upper part of the first tank body 2006, the main water tank 2001 is located in the middle of the first tank body 2006, the cross section of the raised structure 1131 along the length direction perpendicular to the third frame 1130 is square, the first support platform 6003 is a flat plate structure, the first support platform 6003 is parallel to the bottom surface of the raised structure 1131, and the width of the first support platform 6003 is greater than half of the width of the bottom surface of the raised structure 1131. As a result, the structure is more stable, ensuring better support for the longitudinal water tank 2000 and preventing deformation of the frame and the water tank.

[0100] Based on the above-mentioned embodiments of the present application, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0101] The above are only some embodiments of the present application, which are only used to illustrate the technical solution of the present application, rather than to limit it. It should be understood that, for those skilled in the art, without departing from the creative concept of the present application, it is possible to improve or replace it according to the above description, and all these improvements and replacements should belong to the protection scope of the claims attached to the present application. In this case, all details can be replaced by equivalent elements, and the materials, shapes and sizes can also be arbitrary.

Claims

1. A photovoltaic frame, used for a photovoltaic module, characterized in that: The photovoltaic frame comprises: A first frame, a second frame, and two third frames; The two third frames are symmetrically arranged, the two ends of the first frame are respectively connected to one end of the two third frames, the two ends of the second frame are respectively connected to the other ends of the two third frames, and the first frame, the second frame and the two third frames form a rectangular frame; The tops of both ends of the second frame in the length direction are flush with or higher than the top of the first frame, and the tops of both ends of the second frame in the length direction are flush with or lower than the tops of the two third frames.

2. The photovoltaic frame according to claim 1, characterized in that: The top of the second frame is provided with an outwardly extending overlapping cover plate, the overlapping cover plate is provided with a plug-in board, and the plug-in board is located below the overlapping cover plate. The upper end of the outer side of the first frame is provided with a plug-in groove. When the second frame of one photovoltaic frame is connected to the first frame of another photovoltaic frame, the plug-in groove is connected to the corresponding plug-in board and the overlapping cover plate is overlapped on the top of the corresponding first frame; the plug-in groove and the plug-in board connected to it are sealed by structural adhesive; and / or, A protruding structure for positioning support is provided at the bottom of each third frame, and a frame support plate for support is provided at the lower end of one side in the length direction of each third frame, and the bottom of the frame support plate is flush with the bottom of the first frame and the bottom of the second frame respectively.

3. A photovoltaic module, characterized in that: include: A photovoltaic frame, wherein the photovoltaic frame is the photovoltaic frame described in claim 1 above; A photovoltaic laminate is disposed in the photovoltaic frame.

4. A roof photovoltaic system, characterized in that: include: A plurality of photovoltaic modules, wherein the photovoltaic modules are the photovoltaic modules according to claim 3, and the plurality of photovoltaic modules are used to be distributed in a plurality of rows and columns on a roof, wherein the photovoltaic modules in each row are arranged in the transverse direction of the roof, and the photovoltaic modules in each column are arranged in the longitudinal direction of the roof, and the length direction of the second frame of each photovoltaic module is consistent with the transverse direction of the roof, and the length direction of the third frame of each photovoltaic module is consistent with the longitudinal direction of the roof; A plurality of longitudinal water gutters, wherein the length direction of each longitudinal water gutters is consistent with the longitudinal direction of the roof; A plurality of waterproof cover plates, wherein the length direction of each waterproof cover plate is consistent with the longitudinal direction of the roof; Among them, corresponding first and second frames are formed between two adjacent photovoltaic components in each column of the photovoltaic components, and a pair of adjacent third frames are formed between two adjacent photovoltaic components in each row of the photovoltaic components. Two adjacent columns of the photovoltaic components correspond to a longitudinal water gutter and a waterproof cover plate, respectively. Each longitudinal water gutter is used to support the bottom of each pair of adjacent third frames of the two corresponding columns of the photovoltaic components, and each waterproof cover plate is used to cover the top of each pair of adjacent third frames in the two corresponding columns of the photovoltaic components. Each longitudinal water gutter is used to be connected to each purlin on the roof, and the length direction of each purlin is consistent with the transverse direction of the roof.

5. The roof photovoltaic system according to claim 4, characterized in that: A protruding structure for positioning support is provided at the bottom of each of the third frames, and a frame support plate for support is provided at the lower end of one side in the length direction of each of the third frames, and the bottom of the frame support plate is flush with the bottom of the first frame and the bottom of the second frame respectively, and each of the longitudinal water tanks includes: A water tank body, wherein the length direction of the water tank body is consistent with the longitudinal direction of the roof, and the water tank body is provided with a main water tank, two frame mounting grooves and two auxiliary water tanks, all of which penetrate along the length direction and open upward, the main water tank is located between the two frame mounting grooves, and the two frame mounting grooves are located between the auxiliary water tanks, each of the frame mounting grooves is respectively used to cooperate with the protruding structure of each corresponding third frame, and the frame support plate is arranged on the inner side of the third frame, and each of the frame mounting grooves is respectively provided with a support seat on the top of a side away from the main water tank, and each support seat extends toward the direction of the auxiliary water tank close to it, and each support seat is used to cooperate with the frame support plate of each corresponding third frame.

6. The roof photovoltaic system according to claim 5, characterized in that: Each of the waterproof cover plates is provided with a plurality of first fasteners, which are arranged in sequence and spaced apart along the length direction of the waterproof cover plate and are used to connect the waterproof cover plate to the corresponding longitudinal water tank below it; The top sides of the main water tank are symmetrically provided with fastening baffles extending toward the middle thereof, the lower end of each of the first fasteners passes through between the two opposite fastening baffles and is provided with a first limiting member, the first limiting member is located in the main water tank, the upper end of each of the first fasteners passes through the waterproof cover plate and is provided with a first locking member, the first locking member is located above the waterproof cover plate, and the top of each of the first fasteners is also provided with a waterproof cap that is sleeved on the outside of the first locking member.

7. The roof photovoltaic system according to claim 5, characterized in that: Also includes: A plurality of transverse water gutters, each of which has a length direction consistent with the transverse direction of the roof, each of which is provided with a fifth trough body penetrating along its length direction and opening upward, the transverse water gutters and the corresponding second frame and the first frame correspond one to one, each of which is used to be arranged on the purlin and located below the corresponding second frame and the first frame, and one end of each transverse water gutters close to the corresponding longitudinal water gutters is located above the auxiliary water gutters so that water in the fifth trough body can flow into the auxiliary water gutters; the bottoms of the corresponding second frame and the first frame are respectively pressed against the bottom surface of the fifth trough body of the corresponding transverse water gutters.

8. The roof photovoltaic system according to claim 7, characterized in that: Also includes: A plurality of fixing components, each of the longitudinal water troughs is connected to each of the purlins through the fixing components respectively; the bottom of each of the transverse water troughs is pressed against the top of the fixing component corresponding thereto.

9. The roof photovoltaic system according to claim 8, characterized in that: Each of the fixing components comprises: Two pressing blocks, the two pressing blocks are used to cooperate with the two auxiliary water tanks of the corresponding longitudinal water tank in a one-to-one manner, and the two pressing blocks are used to connect with the corresponding purlins; Preferably, each of the pressing blocks is provided with a third trough body corresponding to the side wall of the auxiliary water tank, the third trough body penetrates the pressing block along the length direction of the auxiliary water tank and has an opening facing downward, a lower pressing plate is provided on one side of the bottom of the pressing block and a foot seat is provided on the other side of the bottom thereof, the foot seat is used to press against the purlin, and the lower pressing plate is used to press against the bottom surface in the auxiliary water tank; The bottom of each transverse water trough is pressed against the top of the corresponding pressing block, and the top of each pressing block is provided with a second supporting platform for cooperating with the bottom of the transverse water trough. Each pressing block is connected to the corresponding purlin through a clamp, and a fourth trough body corresponding to the clamp is provided on the second supporting platform, and the fourth trough body passes through the second supporting platform along the length direction of the auxiliary water trough.

10. The roof photovoltaic system according to claim 5, characterized in that: Also includes: A plurality of support brackets, each of which corresponds to the longitudinal water troughs one by one, the length direction of each of the support brackets being consistent with the length direction of the longitudinal water trough and being used to support the longitudinal water trough corresponding thereto, and each of the support brackets being used to be connected to each of the purlins respectively; Preferably, a first trough body corresponding to the supporting bracket is arranged on the bottom of each of the water trough bodies, the first trough body penetrates along the length direction of the water trough body, and the top of the supporting bracket is used to support the bottom surface of the first trough body; Each of the support brackets is provided with a second trough body penetrating along the length direction thereof and with an opening facing upwards, the support bracket is connected to each of the purlins through a second fastener, each of the second fasteners is located on the bottom surface of the second trough body corresponding thereto, and both sides of the top of the second trough body are respectively provided with a first support platform extending toward the middle thereof and used to cooperate with the bottom surface of the first trough body; The first tank body is located below the main tank and the two frame mounting slots and between the two auxiliary tanks.

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