Photovoltaic roof and fixing structure thereof

Abstract

The utility model provides a photovoltaic roof and a fixing structure thereof, and the photovoltaic roof comprises an anti-wind pressure seat which is clamped between adjacent photovoltaic modules; the top of the wind pressure prevention seat is provided with a crimping part, and the crimping part is used for compressing the upper end face of an adjacent photovoltaic module. A first hooking piece is arranged at the bottom of the wind pressure prevention seat; the mounting fastener is arranged below the wind pressure prevention seat and is pressed on the water chute, and the mounting fastener is used for connecting the photovoltaic module and transmitting the gravity of the photovoltaic module to a supporting beam of the photovoltaic roof; a second hooking piece is arranged at the top of the mounting fastener and used for being hooked with the first hooking piece in the vertical direction. The installation structure of the photovoltaic roof is simplified, the installation cost of the photovoltaic roof is saved, meanwhile, the installation stability and the use safety of the photovoltaic roof are improved, and the service life of the photovoltaic roof is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of building integrated photovoltaics (BIPV), and further relates to a photovoltaic roof and its fixing structure. Background Art

[0002] BIPV, that is, building integrated photovoltaics, is a technology that integrates solar power generation (photovoltaic) products into buildings. In recent years, with the popularization of the concept of sustainable development in the construction industry and the promotion of national clean energy policies, photovoltaic roofs have gradually become the main products in the field of building integrated photovoltaics.

[0003] Currently, when installing photovoltaic modules on the top of a building in the industry, most of them use the method of pressing blocks in cooperation with screws to fix the photovoltaic modules to the roof water guide trough. However, in this installation method, the pressing blocks are easily pulled and deformed under extreme wind pressure, making it impossible to guarantee the fixing effect on the photovoltaic modules; moreover, since the screws thereon need to pass through the water guide trough from the outside to the inside, not only is the construction complex and the installation cost high, but rainwater is also easily infiltrated along the screws into metal structures such as the support beams of the roof, resulting in problems such as roof leakage and rust of metal structures. In addition, too many screws also make the overall installation stability and use safety of the photovoltaic roof relatively low, with a short service life, and there is room for improvement. Summary of the Utility Model

[0004] The purpose of this application is to provide a photovoltaic roof and its fixing structure, which can solve at least one of the above problems.

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

[0006] On the one hand, this application provides a fixing structure for a photovoltaic roof. The photovoltaic roof includes a water guide trough and photovoltaic modules. The water guide trough is installed between two adjacent photovoltaic modules and supports the adjacent photovoltaic modules. The water guide trough includes a main water guide trough and a secondary water guide trough perpendicular to the main water guide trough. The fixing structure includes:

[0007] A wind pressure resistant seat, which is clamped between two adjacent photovoltaic modules. The top of the wind pressure resistant seat has a pressing member for pressing the upper end faces of two adjacent photovoltaic modules. The bottom of the wind pressure resistant seat has a first hook member.

[0008] An installation fastener, which is arranged below the wind pressure resistant seat and presses on the water guide trough. The installation fastener is used to connect the photovoltaic modules and transfer the gravity of the photovoltaic modules to the support beam of the photovoltaic roof. The top of the installation fastener has a second hook member for vertically hooking with the first hook member.

[0009] With a photovoltaic roof fixing structure provided by the present application, during actual operation, a plurality of main water channels are arranged at equal intervals along the length direction of the support beam of the photovoltaic roof, and the length direction of the main water channels is perpendicular to the length direction of the support beam. A plurality of secondary water channels are arranged at equal intervals along the length direction of the upper end surface of the corresponding main water channel, and the length directions of the plurality of secondary water channels are all perpendicular to the length direction of the main water channel. After the upper end of the installation fastener is fixedly connected to the frame of the photovoltaic module, it is pressed against the upper end surface of the corresponding main water channel and arranged at intervals along the length direction of each main water channel. Then, its lower end is detachably connected to the support beam of the photovoltaic roof, realizing the detachable fixation of the main water channel on the support beam of the photovoltaic roof. After adjacent photovoltaic modules are arranged on both sides of the corresponding main water channel, the wind pressure resistant seat is inserted into the gap between adjacent photovoltaic modules from the end of the corresponding main water channel along the length direction of the corresponding main water channel. The upper end surface of the adjacent photovoltaic modules is pressed tightly by the top pressing member thereof, and the photovoltaic modules are fixedly pressed on the main water channel through the hooking connection between the first hooking member and the second hooking member.

[0010] At the secondary water channel, the installation fastener is pushed into the secondary water channel from the end of the corresponding secondary water channel to be pressed between the secondary water channel and the corresponding photovoltaic module, realizing the detachable connection between the installation fastener and the secondary water channel. After adjacent photovoltaic modules are both arranged on both sides of the corresponding secondary water channel, the wind pressure resistant seat is inserted into the gap above the secondary water channel of the adjacent photovoltaic modules from the end of the corresponding secondary water channel along the length direction of the corresponding secondary water channel. Then, the upper end surface of the adjacent photovoltaic modules is pressed tightly by the top pressing member thereof, and the photovoltaic modules are fixedly pressed on the secondary water channel through the hooking connection between the first hooking member and the second hooking member.

[0011] By adopting this method, the wind pressure resistant seat combines with the installation fastener to fixedly press the photovoltaic module on the upper end surfaces of the main water channel and the secondary water channel. Since the wind pressure resistant seat is clamped between adjacent photovoltaic modules, the probability of its deformation and failure caused by the pulling force under the action of extreme wind pressure is effectively reduced, thereby ensuring its fixing effect on the photovoltaic module and improving the installation stability of the corresponding photovoltaic roof.

[0012] At the same time, since the connection between the photovoltaic module and the main water channel and the secondary water channel, and the connection between the main water channel and the support beam all adopt press-fit fixation instead of screw penetration fixation. On the one hand, it effectively reduces the corrosive damage and leakage problems caused by the screw penetration damaging the anti-corrosion layer on the surfaces of the main water channel and the secondary water channel; meanwhile, reducing screw connections effectively improves the corresponding connection stability, thereby effectively ensuring the structural stability and use safety of the overall photovoltaic roof and extending its service life.

[0013] In some embodiments, the wind pressure resistant seat includes a connecting plate, a pressing member and a first hooking member respectively arranged at both ends of the connecting plate; the pressing member includes a pressing plate, and the pressing plate is arranged at the upper end of the connecting plate and is perpendicular to the connecting plate.

[0014] The connecting plates include two pieces, the two connecting plates are arranged in parallel and spaced apart, and the length directions of the two connecting plates extend along the length direction of the pressing plate;

[0015] The first hooking member corresponds to the connecting plate one by one and is arranged at one end of the connecting plate away from the pressing plate;

[0016] The first hooking member comprises a first hook portion, and two first hook portions are respectively located on the sides of the two connecting plates which are away from each other, and the hook openings thereof are both arranged upward.

[0017] Through the photovoltaic roof fixing structure provided by the present application, in actual application, after the windproof pressure seat is installed between two adjacent photovoltaic modules, since there are two connecting plates, the two adjacent photovoltaic modules are respectively pressed against the corresponding connecting plates until the two connecting plates are squeezed inwards and close to each other, thereby reducing the gap between the two adjacent photovoltaic modules as much as possible and reducing the probability of leakage at the corresponding position. At the same time, using a pressure plate to simultaneously press the edges of the two adjacent photovoltaic modules to cover the gap between them helps to further reduce the occurrence of leakage, so as to ensure the waterproofness and sealing of the corresponding photovoltaic roof.

[0018] In some embodiments, the pressing plate is provided with two layers along its thickness direction, the two layers of pressing plates are arranged in parallel and spaced apart, and the corresponding ends of the two layers in the width direction are connected;

[0019] The lower layer of the pressing plate is a two-piece structure, and the ends of the two lower layer pressing plates close to each other are connected to the corresponding connecting plates;

[0020] The lower surface of the lower layer pressing plate is provided with an EPDM foam rubber strip.

[0021] A photovoltaic roof fixing structure provided by the present application is provided, in which a windproof pressure seat is provided with two laminates, and the corresponding ends of the lower laminate and the upper laminate in the width direction are connected, and the ends of the lower laminate close to each other are connected to the connecting plate. The elastic deformation between the two laminates is utilized to adapt to the pulling force of the installation fasteners on the windproof pressure seat, thereby reducing the deformation and failure of the pressure plate caused by excessive pulling force of the installation fasteners on the windproof pressure seat, thereby effectively ensuring the stability of the function of the windproof pressure seat and ensuring that it reliably seals the gaps between adjacent photovoltaic modules.

[0022] Meanwhile, an EPDM foam rubber strip is provided on the lower surface of the pressing plate. When actually installing the windproof pressure seat, by utilizing the high elasticity of the EPDM foam rubber strip, press the pressing plate until the EPDM foam rubber strip is compressed in place, and the windproof pressure seat can be hooked to the installation fastener; thereafter, by utilizing the resilience of the EPDM foam rubber strip, the installation fastener is always kept in a state of tightly pulling the windproof pressure seat, which can ensure that the EPDM foam rubber strip always closely adheres to the frame of the photovoltaic module; on the one hand, it helps to improve the installation convenience of the windproof pressure seat; on the other hand, it also helps to further ensure the stable sealing of the gap between adjacent photovoltaic modules, thereby ensuring the waterproofness of the corresponding photovoltaic roof.

[0023] In some embodiments, the installation fastener includes two first fasteners, and both of the two first fasteners include a bottom plate, a support plate and a top plate; the bottom plate and the top plate are arranged in parallel at intervals, the support plate is vertically arranged between the bottom plate and the top plate, and the bottom plate and the top plate are respectively located on both sides of the thickness direction of the support plate, so that the first fastener has a Z-shaped structure;

[0024] The second hooking member includes a second hook portion, and the second hook portion is formed at one end of the top plate away from the support plate and is located on the lower surface of the top plate;

[0025] The second hook portions on the two first fasteners are arranged facing each other;

[0026] The top plate is horizontally arranged and is used to support and connect the photovoltaic module;

[0027] The bottom plate is used for detachably and fixedly connecting with the support beam.

[0028] In a photovoltaic roof fixing structure provided by the present application, in actual application, the two first fasteners are respectively arranged on both sides of the width direction of the main water trough and are symmetrically arranged about the center line in the width direction of the main water trough; during actual installation, after setting its top plate to press on the upper end surface of the main water trough, detachably fix the bottom plate to the corresponding position on the support beam, and the fixed pressing connection of the corresponding position of the main water trough at the corresponding position on the support beam can be realized; meanwhile, after the windproof pressure seat is embedded between adjacent photovoltaic modules, the first hook portion extends below the photovoltaic module and is hooked to the second hook portion, and the fixed pressing connection of the photovoltaic module on the main water trough can be realized. The first fastener has a simple structure, is convenient to manufacture and install, effectively reduces the cost investment of the corresponding operations when the main water trough is installed on the photovoltaic roof support beam and the photovoltaic module is fixed on the main water trough, and is beneficial to energy conservation and cost reduction.

[0029] In some embodiments, a first installation hole is formed in the middle of the bottom plate, and the first installation hole is used to adapt to the connecting member on the support beam;

[0030] A bending portion is formed at one end of the top plate close to the support plate, and the shape of the bending portion is adapted to the side edge of the main water channel; the bending portion protrudes from the upper surface of the top plate;

[0031] A second mounting hole is formed at one end of the top plate away from the support plate and passes through the top plate in its thickness direction. The second mounting hole is used to fit a fixing piece on the frame of the photovoltaic assembly.

[0032] Through a photovoltaic roof fixing structure provided by the present application, in actual applications, the bending portion is erected on the corresponding side edge of the main water gutter, and then the bottom plate is fixedly connected to the support beam through the first mounting hole, and the top plate is fixedly connected to the photovoltaic component frame through the second mounting hole, so that the first fastener can be set between the photovoltaic component and the support beam; because the bending portion is protruding from the top plate, the first fastener is used as the main load-bearing component, and the main water gutter does not bear weight, thereby replacing the solution in the related technology that uses the water gutter as the main load-bearing component and sets a larger weight, which helps to further reduce the cost investment of enterprises in photovoltaic roof erection; at the same time, such a setting can be used to set the main water gutter to have a thinner size, so that adjacent main water gutteres can be overlapped, and the splicing operation between adjacent main water gutteres does not require nailing, which simplifies the construction steps and helps to further reduce the probability of leakage due to corrosion of the nailing position, and helps to further extend the service life of the corresponding photovoltaic roof.

[0033] In some embodiments, a tooth-shaped stopper is provided on one side of the support plate close to the top plate, and the flange of the side edge of the main water channel abuts against the upper end surface of the tooth-shaped stopper.

[0034] Through a photovoltaic roof fixing structure provided by the present application, after the two first fasteners are respectively installed on both sides of the water guide groove in the width direction, the bending portion is laid on the corresponding side edge of the main water guide groove, and the flange of the side edge of the main water guide groove abuts the upper end surface of the toothed limiter, so that the main water guide groove is limited between the bending portion and the toothed limiter, reducing the occurrence of excessive gravity on the main water guide groove, thereby effectively ensuring the stability of the main water guide groove structure and function.

[0035] In some embodiments, the mounting fastener includes two second fasteners, each of the two second fasteners includes a vertical plate and a clamping plate, the vertical plate and the clamping plate are vertically arranged, and the clamping plate is located on one side of the vertical plate in the thickness direction, so that the second fastener has an L-shaped structure;

[0036] The second hooking member includes a third hook portion, which is formed at one end of the vertical plate away from the clamping plate and is located on a side of the vertical plate away from the clamping plate in the thickness direction; the third hook portions on the two second fasteners are arranged facing each other;

[0037] One end of the clamping plate away from the vertical plate is folded upward to form an abutting plate for abutting against the inner wall of the secondary water guide groove.

[0038] Through a photovoltaic roof fixing structure provided by the present application, in the industry, the secondary water guide groove is usually set as a U-shaped structure; in actual application, after the two second fasteners are embedded in the secondary water guide groove, the corresponding clamping plate abuts the inner bottom wall of the secondary water guide groove, and the corresponding abutting plate abuts the inner wall surface of the secondary water guide groove, and the lower edge of the photovoltaic component frame presses the corresponding clamping plate against the inner bottom wall of the secondary water guide groove to achieve a detachable connection between the second fastener and the secondary water guide groove; after the windproof pressure seat is installed between adjacent photovoltaic components, the windproof pressure seat is pressed from top to bottom until the first hook on it extends to the bottom of the photovoltaic component and is hooked with the third hook, so that the photovoltaic component can be fixed and pressed on the secondary water guide groove. The second fastener has a simple structure, is easy to manufacture and use, and effectively reduces the cost investment of the corresponding operation when the photovoltaic component is fixed on the secondary water guide groove, and improves the installation efficiency. At the same time, due to the setting of the abutment plate, the probability of the clamping plate being disengaged from between the photovoltaic component and the secondary water guide groove due to excessive tension between the second fastener and the windproof pressure seat is effectively reduced, effectively ensuring the installation stability of the photovoltaic component on the secondary water guide groove.

[0039] In some embodiments, it further includes a flashing edge, the flashing edge is a U-shaped structure, including a first side edge, a bottom edge and a second side edge connected in sequence, the first side edge and the second side edge are arranged in parallel and spaced apart, and are perpendicular to the bottom edge;

[0040] A side of the first side facing away from the second side is bent to form a first arch portion, the first arch portion is adapted to the shape of the side edge of the main water channel, and is arranged on the side edge of the main water channel away from the photovoltaic module;

[0041] A side of the second side facing away from the first side is bent to form a second arch portion, the second arch portion is higher than the first arch portion, and the second arch portion is close to the side wall of the photovoltaic component and presses against the side wall surface of the photovoltaic component;

[0042] The side wall of the second arch portion close to the photovoltaic component is bent to form a connecting plate, and the connecting plate is clamped between the top plate and the photovoltaic component.

[0043] Through the photovoltaic roof fixing structure provided by the present application, a flashing edging is arranged above the main water tank at the edge of the photovoltaic roof, and the flashing edging is used to guide the rainwater on the surface of the photovoltaic module to the main water tank at the edge of the photovoltaic roof, effectively reducing the occurrence of rainwater infiltrating into the photovoltaic building from the edge of the photovoltaic roof, and stably ensuring the water conductivity and waterproofness of the photovoltaic roof. At the same time, the flashing edging is used to connect the photovoltaic module and the side edge of the main water tank away from the photovoltaic module, which helps to improve the setting stability of the main water tank at the edge of the corresponding photovoltaic roof, and to avoid deformation or cracking due to uneven force as much as possible.

[0044] In addition, the overall structure of the flashing edging is simple, easy to produce and use, and low in cost.

[0045] In some embodiments, it further includes an edge fastener, which is in an L-shaped structure, including a support plate and a fixing plate, the support plate and the fixing plate are arranged vertically, and the fixing plate is arranged on one side of the support plate in the thickness direction;

[0046] The support plate is vertically arranged, and a third arch is provided at one end away from the fixing plate, the third arch matches the shape of the second arch and is embedded in the second arch from bottom to top;

[0047] The fixing plate is arranged between the connecting plate and the top plate of the first fastener, and a third mounting hole is opened on the fixing plate corresponding to the second mounting hole.

[0048] Through a photovoltaic roof fixing structure provided by the present application, a third arch is formed on the edging fastener, and the third arch is arranged to extend into the second arch. On the one hand, it supports the flashing edging, and on the other hand, it limits the fixed position of the flashing edging close to the photovoltaic component side. The edging fastener has a simple structure and can be used for multiple purposes, effectively ensuring the convenience of installation of the flashing edging.

[0049] On the other hand, the present application also provides a photovoltaic roof, comprising any of the photovoltaic roof fixing structures described above, and further comprising:

[0050] A plurality of support beams arranged at even intervals;

[0051] A plurality of main water troughs are evenly spaced along the length direction of the support beam, the length direction of any of the main water troughs is perpendicular to the length direction of the support beam, and are detachably fixedly connected to the support beam via the mounting fasteners;

[0052] A plurality of auxiliary water guide grooves are evenly spaced along the length direction of the main water guide groove, the length direction of any auxiliary water guide groove is perpendicular to the length direction of the main water guide groove, and both ends of the auxiliary water guide groove are respectively supported on the upper end surface of the adjacent main water guide groove and are connected to the corresponding main water guide groove;

[0053] The photovoltaic components are arranged between adjacent main water channels and adjacent secondary water channels. Windproof pressure seats are provided between adjacent photovoltaic components. The first hook of the windproof pressure seat is hooked with the second hook corresponding to the mounting fastener to achieve fixed pressure connection of the photovoltaic components on the main water channel and the secondary water channel.

[0054] Compared with the prior art, the photovoltaic roof and its fixing structure provided by the present application have at least one of the following beneficial effects:

[0055] 1. In this application, the main water channel is pressed on the support beam of the photovoltaic roof by means of installation fasteners, the photovoltaic module is pressed tightly on the corresponding water channel by means of wind pressure resistant seats, and the detachable fixed connection of the photovoltaic module on the support beam of the photovoltaic roof is realized by the hook connection and cooperation of the installation fasteners and the wind pressure resistant seats; since the wind pressure resistant seats are clamped between adjacent photovoltaic modules, the probability of being pulled and deformed and failing under the action of extreme wind pressure can be effectively reduced, and the probability of the photovoltaic modules being blown away can be reduced, thus ensuring the fixing effect on the photovoltaic modules and reducing project losses; at the same time, since the connection between the photovoltaic module and the main water channel and the secondary water channel, and the connection between the main water channel and the support beam all adopt crimping fixation instead of screw penetration fixation, on the one hand, the corrosive damage and leakage problems caused by the screw penetration damaging the anti-corrosion layer on the surfaces of the main water channel and the secondary water channel are effectively reduced; on the other hand, since screw connection is not required, the corresponding connection stability is effectively improved; thus, the overall corrosion resistance and use safety of the photovoltaic roof are effectively improved, and its service life is extended. At the same time, since on-site perforation is not required, it also helps to improve the construction efficiency and construction convenience of the photovoltaic roof.

[0056] 2. In this application, the first fastener is provided with a first installation hole in cooperation with the connecting piece on the support beam of the photovoltaic roof, so that the first fastener can be fixed on the support beam by various fixing methods, and the first fastener can meet the connection requirements of support beams with different cross-sectional shapes, effectively expanding the applicable range of the fixing structure of the photovoltaic roof and enhancing its practicability.

[0057] 3. In this application, as the main load-bearing structure, the first fastener is used, and the main water channel does not need to bear the load, so that the main water channel does not need to be set with large size and large weight, and only the structural stability of the first fastener needs to be ensured, which helps to save the construction cost of the photovoltaic roof. At the same time, the main water channel can be made very thin, which is convenient for laminated lapping without screw splicing, helps to further simplify the construction steps, and further ensures the waterproofness of the photovoltaic roof, effectively extending its service life.

[0058] 4. In this application, the overall structure of the wind pressure resistant seat is in a "π" shape. On the one hand, after it is embedded between two adjacent photovoltaic modules, it can be directly hooked with the corresponding installation fastener by pressing from top to bottom, effectively ensuring the installation convenience of the wind pressure resistant seat and shortening the construction period. At the same time, it also effectively ensures the stable sealing of the gap between adjacent photovoltaic modules, ensuring the waterproofness and service life of the corresponding photovoltaic roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] The above characteristics, technical features, advantages and their implementation manners of the present solution will be further described below in a clear and understandable manner in combination with the drawings in the preferred embodiments.

[0060] Figure 1It is an axonometric schematic diagram mainly showing the overall structure of the photovoltaic roof in the embodiment of the present application;

[0061] Figure 2 It is a side view mainly showing the installation position of the fixing structure of the photovoltaic roof in the embodiment of the present application;

[0062] Figure 3 It is Figure 2 An enlarged view of part A in , mainly used to show the specific crimping form of the photovoltaic module at the upper end of the main water trough;

[0063] Figure 4 It is a side view mainly showing the installation position of the fixing structure of the photovoltaic roof in the embodiment of the present application;

[0064] Figure 5 It is Figure 4 An enlarged view of part B in , mainly used to show the specific crimping form of the photovoltaic module at the upper end of the secondary water trough;

[0065] Figure 6 It is an axonometric schematic diagram mainly showing the overall structure of the windproof pressure seat in the embodiment of the present application;

[0066] Figure 7 It is an axonometric schematic diagram mainly showing the overall structure of the first fastener in the embodiment of the present application;

[0067] Figure 8 It is an axonometric schematic diagram mainly showing the overall structure of the main water trough in the embodiment of the present application;

[0068] Figure 9 It is an axonometric schematic diagram mainly showing the overall structure of the secondary water trough in the embodiment of the present application;

[0069] Figure 10 It is an axonometric schematic diagram mainly showing the overall structure of the second fastener in the embodiment of the present application;

[0070] Figure 11 It is Figure 2 An enlarged view of part C in , mainly used to show the installation position of the flashing edge at the photovoltaic roof;

[0071] Figure 12 It is an axonometric schematic diagram mainly showing the overall structure of the flashing edge in the embodiment of the present application;

[0072] Figure 13 It is an axonometric schematic diagram mainly showing the overall structure of the edge fastener.

[0073] Explanation of reference numerals:

[0074] 1. Windproof pressure seat; 11. Pressing piece; 12. First hooking piece; 13. Connecting plate; 2. Mounting fastener; 21. First fastener; 211. Bottom plate; 2111. First mounting hole; 212. Support plate; 2121. Toothed stopper; 213. Top plate; 2131. Bending part; 2132. Second mounting hole; 214. Second hooking piece; 22. Second fastener; 221. Vertical plate; 222. Clamping plate; 223. Abutting plate; 224. Inclined plate; 3. EPDM foam strip; 4. Flashing edging; 41. First side edge; 411. First arch; 42. Bottom edge; 43. Second side edge; 431. Second arch; 4311. Positioning plate; 5. Edging fastener; 51. Support plate; 52. Fixing plate; 521. Third mounting hole; 53. Third arch;

[0075] 100. Support beam; 200. Photovoltaic module; 300. Main water channel; 400. Secondary water channel. DETAILED DESCRIPTION

[0076] In order to more clearly illustrate the embodiments of the present application or the 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 ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0077] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0078] At present, in the field of photovoltaic building integration, photovoltaic roofs are one of the main products, which usually include support beams and photovoltaic modules installed on the support beams; and in order to ensure that the photovoltaic roof has good waterproof performance and avoid leakage problems on rainy days as much as possible, the industry usually configures photovoltaic roofs with additional water guide systems such as water guide gutters (the water guide gutters are installed between two adjacent photovoltaic modules and support the adjacent photovoltaic modules. The water guide gutters include a main water guide gutter and a secondary water guide gutter, and the main water guide gutter is arranged perpendicular to the secondary water guide gutter).

[0079] At present, when installing photovoltaic modules on the top of a building in the industry, most of the time, the water guide trough is first fixed to the support beam on the roof, and then the photovoltaic modules are fixed to the roof water guide trough by using a pressing block in cooperation with screws. However, in this installation method, the pressing block is easily deformed under the action of extreme wind pressure, and its fixing effect on the photovoltaic modules cannot be guaranteed; moreover, most of the screws pass through the water guide trough from the outside to the inside, which not only makes the construction complex and the installation cost high, but also rainwater is easily infiltrated along the screws into metal structures such as the support beam on the roof, causing problems such as roof leakage and rust of metal structures, further affecting the overall construction stability and use safety of the photovoltaic roof and shortening its service life.

[0080] In view of this, in one embodiment, referring to the Figures 1 to 5 of the specification drawings, a fixing structure for a photovoltaic roof is provided, which has a simple structure and low installation cost. At the same time, it can effectively improve the installation quality of the corresponding photovoltaic roof, ensure the installation stability and use safety of the photovoltaic roof, and extend its service life. Specifically, the fixing structure for the photovoltaic roof includes a wind-resistant pressure seat 1 and an installation fastener 2. Among them, the wind-resistant pressure seat 1 is clamped between adjacent photovoltaic modules 200, and its top has a pressing member 11 for pressing the upper end surface of adjacent photovoltaic modules 200, and its bottom has a first hook member 12; the installation fastener 2 is arranged below the wind-resistant pressure seat 1 and is pressed against the upper end surface of the main water guide trough 300 or the inner wall surface of the secondary water guide trough 400 according to the installation position, that is, pressed against the water guide trough, and is used to connect the photovoltaic modules 200 and transfer the gravity of the photovoltaic modules 200 to the support beam 100 of the photovoltaic roof; the top of the installation fastener 2 has a second hook member 214 corresponding to the first hook member 12. When the adjacent photovoltaic modules 200 are supported on the upper end of the main water guide trough 300 or the secondary water guide trough 400, the second hook member 214 of the corresponding installation fastener 2 and the first hook member 12 of the corresponding wind-resistant pressure seat 1 are hooked in the vertical direction to realize the fixed installation of the adjacent photovoltaic modules 200 on the upper end of the main water guide trough 300 or the secondary water guide trough 400.

[0081] During actual operation, first, a plurality of main guide troughs 300 are evenly arranged at intervals along the length direction of the support beam 100 on the photovoltaic roof, with the length direction of the main guide troughs 300 perpendicular to the length direction of the support beam 100. At the same time, a plurality of secondary guide troughs 400 are evenly arranged at intervals along the length direction of the main guide troughs 300, and the length direction of the secondary guide troughs 400 is perpendicular to the length direction of the main guide troughs 300. Then, the upper end of the mounting fastener 2 is fixedly connected to the frame of the photovoltaic module 200, and then the mounting fastener 2 and the corresponding photovoltaic module 200 are pressed against the upper end surface of the main guide trough 300. Subsequently, the lower end of the mounting fastener 2 is detachably connected to the support beam 100 of the photovoltaic roof, and the main guide trough 300 is detachably fixed to the support beam 100 of the photovoltaic roof. After that, another mounting fastener 2 is pushed into the secondary guide trough 400 from the end of the corresponding secondary guide trough 400 to press the corresponding mounting fastener 2 on the secondary guide trough 400 to ensure that it can be detachably connected to the secondary guide trough 400. Subsequently, the installation operation of the photovoltaic module 200 between the adjacent main guide troughs 300 and the adjacent secondary guide troughs 400 is completed in the above manner. Then, the windproof pressure seats 1 are respectively installed in the gaps between the adjacent photovoltaic modules 200 along the length directions of the corresponding main guide troughs 300 and the secondary guide troughs 400. The upper end surfaces of the adjacent photovoltaic modules 200 are pressed by the pressing members 11 at the tops of the windproof pressure seats 1. Then, the first hook member 12 and the second hook member 214 are hooked to complete the fixed pressing of the photovoltaic module 200 on the upper ends of the corresponding main guide troughs 300 and the secondary guide troughs 400, realizing the construction of the photovoltaic roof.

[0082] In this way, the photovoltaic component 200 is pressed onto the upper end surfaces of the main water channel 300 and the secondary water channel 400 through the wind-proof pressure seat 1, and the main water channel 300 is pressed onto the support beam 100 of the photovoltaic roof by installing the fastener 2, and with the help of the hooking and cooperation between the wind-proof pressure seat 1 and the main water channel 300, the photovoltaic component 200 is stably installed on the support beam 100; because the wind-proof pressure seat 1 is clamped between adjacent photovoltaic components 200, and the four sides of any photovoltaic component 200 are pressed by the wind-proof pressure seat 1, the probability of extreme wind pressure pulling the wind-proof pressure seat 1 to cause it to deform and causing its fixing effect on the photovoltaic component 200 to fail is effectively reduced, and the occurrence of the photovoltaic component 200 being blown away is effectively reduced, thereby ensuring the installation stability of the photovoltaic component 200 and reducing project losses. At the same time, since the connection between the photovoltaic module 200 and the main water gutter 300 and the auxiliary water gutter 400, and the connection between the main water gutter 300 and the support beam 100 are all fixed by crimping rather than by screwing, on the one hand, the corrosion damage and leakage problems caused by the destruction of the surface anti-corrosion layer of the main water gutter 300 and the auxiliary water gutter 400 by nailing are effectively reduced, thereby ensuring the waterproofness of the photovoltaic roof; on the other hand, the use of hooks instead of screws effectively improves the reliability of the corresponding connection effect, thereby effectively improving the overall corrosion resistance and safety of the photovoltaic roof, and extending its service life; at the same time, since there is no need for on-site punching and the installation operation is convenient, it also effectively improves the construction efficiency and construction convenience of the corresponding photovoltaic roof, which is conducive to shortening the delivery cycle.

[0083] In one embodiment, based on the above embodiment, specifically, referring to Figure 3 , Figure 5 and Figure 6 To facilitate the installation of the windproof pressure seat 1, in this embodiment of the present application, the cross-section of the windproof pressure seat 1 is set to a "π" shape as a whole, specifically including a connecting plate 13, a crimping piece 11 and a first hooking piece 12 respectively arranged at both ends of the connecting plate 13.

[0084] Among them, the connecting plate 13 is set to two pieces, and the two connecting plates 13 are vertically parallel and spaced apart; the crimping piece 11 is set to a pressing plate. In this embodiment of the present application, the pressing plate is a rectangular structure as a whole. The pressing plate is arranged at the upper ends of the two connecting plates 13 and is perpendicular to the two connecting plates 13. The two connecting plates 13 are symmetrically arranged about the center line of the width direction of the pressing plate, and the length directions of both extend along the length direction of the pressing plate (the length direction of the pressing plate is parallel to the length direction of the main water tank 300 after assembly); the first hook member 12 is arranged corresponding to the connecting plate 13, and is arranged at the end of the connecting plate 13 in the width direction away from the pressing plate, that is, it is arranged at the lower end of the connecting plate 13.

[0085] In this embodiment of the present application, the first engaging member 12 is configured as a first hook portion, and the first hook portion is disposed on one side in the thickness direction of the connecting plate 13. The two first hook portions on the windproof pressure seat 1 are respectively located on the mutually facing sides of the two connecting plates 13, and the hook openings are both arranged upward. Preferably, the lower end of any first hook portion is configured as an arc surface, so that after the windproof pressure seat 1 is installed between adjacent photovoltaic modules 200, it can be hooked to the second engaging member 214 at the top of the installation fastener 2 from top to bottom.

[0086] Meanwhile, in this embodiment of the present application, two layers of pressing plates are arranged in parallel at intervals along the thickness direction of the pressing plates themselves; and, in order to keep the two layers of pressing plates elastic along the thickness direction of the pressing plates themselves, the corresponding ends in the width direction of the two layers of pressing plates are connected. The lower pressing plate is configured as a two-piece structure, and the two lower pressing plates are located in the same plane and are arranged at intervals. At the same time, the ends of the two lower pressing plates close to each other are respectively connected to the upper ends of the corresponding connecting plates 13. After assembly, the elastic deformation along the thickness between the two layers of pressing plates is used to adjust the pulling force of the installation fastener 2 on the windproof pressure seat 1, reducing the probability of the pressing plate deforming and failing due to excessive pulling force between the installation fastener 2 and the windproof pressure seat 1, thereby further ensuring the pressing effect of the windproof pressure seat 1 on adjacent photovoltaic modules 200 and the sealing effect on the gap between adjacent photovoltaic modules 200.

[0087] In addition, preferably, an EPDM foam rubber strip 3 is further arranged on the lower surface of the lower pressing plate, and the EPDM foam rubber strip 3 is adhered to the lower surface of the lower pressing plate; after the windproof pressure seat 1 is assembled, the EPDM foam rubber strip 3 abuts against the upper surface of the frame of the corresponding photovoltaic module 200.

[0088] In practical applications, after the photovoltaic module 200 is installed between the adjacent main water guide trough 300 and the auxiliary water guide trough 400, keep one end of the windproof pressure seat 1 forming the first hook portion facing downwards, and embed it between two adjacent photovoltaic modules 200 along the length direction of the corresponding main water guide trough 300 or the auxiliary water guide trough 400 from the end of the corresponding main water guide trough 300 or the auxiliary water guide trough 400; two adjacent photovoltaic modules 200 respectively abut against the mutually facing sides of the two connecting plates 13, and squeeze the two connecting plates 13 to make them tend to approach each other, so as to narrow the gap between two adjacent photovoltaic modules 200 as much as possible; due to the high elasticity of the EPDM foam rubber strip 3, press the pressing plate from top to bottom until the EPDM foam rubber strip 3 is compressed in place, and the first hook portion of the windproof pressure seat 1 moves to the lower part of the second engaging member of the installation fastener 2; then, stop pressing the pressing plate, the pressure on the EPDM foam rubber strip 3 disappears, the elasticity is released, the deformation is restored, and the first hook portion is driven to have an upward movement tendency, so that the first hook portion can hook the second engaging member 214 of the installation fastener 2 from bottom to top, and the installation fastener 2 can always keep the state of tightly pulling the windproof pressure seat 1, and the EPDM foam rubber strip 3 is always closely attached to the frame of the adjacent photovoltaic module 200, while ensuring that the pressing plate presses the photovoltaic module 200, further sealing the gap between the adjacent photovoltaic modules 200.

[0089] In this embodiment of the present application, the windproof pressure seat 1 is formed by multiple bends of a plate, that is, the two connecting plates 13, the two layers of pressing plates and the two first hook portions are integrally formed. In this way, while ensuring the production convenience of the windproof pressure seat 1, the structural strength thereof is effectively ensured. Of course, the connecting plates 13, the pressing plates and the first hook portions can also be fixedly connected by forms such as welding and clamping, that is, the windproof pressure seat 1 is formed by splicing. In the implementation manner of the present application, the forming manner of the windproof pressure seat 1 is not specifically limited, and the forming manner of the windproof pressure seat 1 should not be used as a limitation to the protection scope of the present application.

[0090] Refer to Figure 1 、 Figure 3 And Figure 7, in this embodiment of the present application, the installation fastener 2 is provided corresponding to the two first hook portions of the wind pressure prevention seat 1, and includes two first fasteners 21 arranged oppositely. Specifically, any one of the first fasteners 21 includes a bottom plate 211, a support plate 212 and a top plate 213; wherein, the bottom plate 211 and the top plate 213 are arranged in parallel at intervals, the support plate 212 is arranged between the bottom plate 211 and the top plate 213, and is perpendicular to the bottom plate 211 and the top plate 213, and the bottom plate 211 and the top plate 213 are respectively located on both sides of the thickness direction of the support plate 212, so that the first fastener 21 has a Z-shaped structure. The second hook member 214 includes a second hook portion, and the second hook portion is formed at one end of the top plate 213 away from the support plate 212 and is located on the lower surface of the top plate 213; during assembly, the two first fasteners 21 are respectively arranged on both sides of the width direction of the main water trough 300, and are symmetrical about the midline of the width direction of the pressing plate, and the second hook portions on the two first fasteners 21 are arranged facing each other, so that the two first hook portions of the wind pressure prevention seat 1 can be simultaneously hooked to the corresponding second hook portions on the two first fasteners 21.

[0091] Referring to Figure 3 and Figure 8 , currently, in the industry, the main water trough 300 is usually arranged in a flat-bottom V-shaped structure. In this embodiment of the present application, referring to Figure 7 , the top plate 213 is used to support the photovoltaic module 200; a bending portion 2131 is formed at one end of the top plate 213 close to the support plate 212, and the bending portion 2131 protrudes from the upper surface of the top plate 213, and its shape is adapted to the side edge of the main water trough 300; a first installation hole 2111 is opened in the middle of the bottom plate 211 to be adapted to the connecting member on the support beam 100; of course, a second installation hole 2132 is opened through the thickness direction at one end of the top plate 213 away from the support plate 212 to be adapted to the fixing member on the frame of the photovoltaic module 200. During assembly, both the top plate 213 and the bottom plate 211 are arranged horizontally, wherein, the bending portion 2131 is arranged on the side edge of the main water trough 300 from top to bottom, and its upper and lower end faces respectively abut against the upper end face of the photovoltaic module 200 and the side edge of the main water trough 300; then, the bottom plate 211 is fixedly connected to the support beam 100 through the adaptation of the first installation hole 2111 and the connecting member on the support beam 100; the top plate 213 is fixedly connected to the photovoltaic module 200 through the adaptation of the second installation hole 2132 to the fixing member on the frame of the photovoltaic module 200, so as to realize the fixed connection between the first fastener 21 and the photovoltaic module 200.

[0092] In this embodiment of the present application, the first fastener 21 can be detachably and fixedly connected to the support beam 100 by passing bolts through the first mounting holes 2111 and the support beam 100; that is, the frame of the photovoltaic module 200 is arranged on the top plate 213 and fixedly connected to the top plate 213 by bolts. Specifically, after the bolts pass through the bolt holes on the frame of the photovoltaic module 200 and the second mounting holes 2132 respectively, they are fastened by nuts, thereby realizing the fixed connection between the photovoltaic module 200 and the first fastener 21. Of course, a locking structure or the like can also be provided at the corresponding position on the support beam 100. For example, after the locking buckle passes through the first mounting hole 2111, it locks the support beam 100 and the bottom plate 211 to realize the detachable connection between the first fastener 21 and the support beam 100. The embodiment of the present application does not specifically limit the connection method between the first fastener 21 and the support beam 100.

[0093] In this embodiment of the present application, to reduce the processing accuracy and improve the installation convenience of the first fastener 12, the first mounting hole 2111 or the second mounting hole 2132 can be set as an oblong hole, and its extending direction is perpendicular to the support plate 212.

[0094] Furthermore, a toothed limiting member 2121 is provided in the middle of the support plate 212. After the first fastener 21 presses on the main water channel 300, the toothed limiting member 2121 is used to support the upper end surface of the flanging on the side edge of the main water channel 300 by using the toothed structure, so as to limit the main water channel 300 between the bending portion 2131 and the toothed limiting member 2121, thereby reducing the occurrence of the situation that the main water channel 300 is deformed or even damaged due to bearing.

[0095] In this embodiment of the present application, the toothed limiting member 2121 is formed by cutting, folding and opening teeth on the middle plate of the support plate 212, that is, the toothed limiting member 2121 is integrally formed with the support plate 212 to ensure its stability connected to the support plate 212. Of course, in the embodiment of the present application, a sheet-shaped toothed limiting member 2121 can also be provided separately, and then it is fixed to the corresponding position in the middle of the support plate 212 by welding, clamping or other methods, and this embodiment will not be elaborated one by one.

[0096] Even further, currently, the industry usually sets the auxiliary water channel 400 to be in the Figure 9 shown flat-bottom U-shaped structure. In this embodiment of the present application, correspondingly, referring to Figure 5 and Figure 10 , the mounting fastener 2 further includes two relatively arranged second fasteners 22, and the two second fasteners 22 are used to be installed in the auxiliary water channel 400 and realize the fixed pressing of the photovoltaic module 200 at the upper end of the auxiliary water channel 400.

[0097] Specifically, any second fastener 22 includes a vertical plate 221 and a clamping plate 222. The vertical plate 221 and the clamping plate 222 are perpendicularly arranged, and the clamping plate 222 is located on one side of the vertical plate 221 in the thickness direction, so that the second fastener 22 has an L-shaped structure. The second hook member 214 includes a third hook portion, which is formed at one end of the vertical plate 221 facing away from the clamping plate 222 and is located on the side of the vertical plate 221 in the thickness direction facing away from the clamping plate 222. During assembly, the two second fasteners 22 are respectively arranged at both ends of the width direction of the auxiliary water guide groove 400, keeping the two vertical plates 221 vertically arranged, and keeping the two third hook portions on the two second fasteners 22 facing each other; the clamping plates 222 are horizontally arranged. After the photovoltaic module 200 is installed on the auxiliary water guide groove 400, the lower edge of the frame of the photovoltaic module 200 presses the corresponding clamping plates 222 on the two second fasteners 22 against the inner bottom wall of the auxiliary water guide groove 400, thereby realizing the crimping of the second fastener 22 in the auxiliary water guide groove 400.

[0098] Referring to Figure 10 , in this embodiment of the present application, one end of the clamping plate 222 of any second fastener 22 facing away from the vertical plate 221 is turned up to form an abutting plate 223 for abutting against the inner side wall of the auxiliary water guide groove 400; at the same time, one end of any abutting plate 223 facing away from the clamping plate 222 is bent toward the corresponding vertical plate 221 to form an inclined plate 224. In practical applications, after the second fastener 22 is installed between the photovoltaic module 200 and the auxiliary water guide groove 400, the abutting plate 223 is located between the inner side wall of the auxiliary water guide groove 400 and the side wall of the frame of the photovoltaic module 200, and the inclined plate 224 is generally horizontally arranged at the edge of the frame of the photovoltaic module 200, so as to effectively reduce the probability that the clamping plate 222 is disengaged from between the corresponding photovoltaic module 200 and the corresponding auxiliary water guide groove 400 due to excessive tension between the second fastener 22 and the windproof pressure seat 1, thereby ensuring the stability of the photovoltaic module 200 pressed on the auxiliary water guide groove 400.

[0099] In this embodiment of the present application, in order to stably improve the water conductivity and waterproofness of the corresponding photovoltaic roof, referring to Figure 2 , Figure 11 and Figure 12 , a flashing 4 is provided above the main water guide groove 300 at the edge position of the photovoltaic roof; specifically, the flashing 4 has a U-shaped structure and includes a first side 41, a bottom side 42 and a second side 43 connected in sequence, wherein the first side 41 and the second side 43 are arranged in parallel at intervals and are perpendicular to the bottom side 42.

[0100] Furthermore, on the side of the first side 41 facing away from the second side 43, a first arched portion 411 is formed by bending. The first arched portion 411 is adapted to the shape of the side edge of the main water trough 300, so that one side of the flashing edge 4 is laid on the side edge of the main water trough 300 away from the photovoltaic module 200. The second side 43 is arranged close to the edge of the photovoltaic module 200. On the side facing away from the first side 41, a second arched portion 431 is formed after bending. The second arched portion 431 is higher than the first arched portion 411. And the side wall of the second arched portion 431 away from the first arched portion 411 is bent at the lower end surface of the corresponding photovoltaic module 200, and a positioning plate 4311 is formed. During assembly, the other side of the flashing edge 4, that is, the side wall of the second arched portion 431 close to the photovoltaic module 200, abuts against the edge of the photovoltaic module 200, and the positioning plate 4311 is clamped between the top plate 213 and the lower end surface of the photovoltaic module 200.

[0101] Moreover, the photovoltaic roof fixing structure further includes a edge-fastening member 5. Refer to Figure 2 、 Figure 11 and Figure 13 , the edge-fastening member 5 is used to fix the side of the flashing edge 4 close to the photovoltaic module 200. Specifically, the edge-fastening member 5 has an L-shaped structure, including a support plate 51 and a fixing plate 52. The support plate 51 and the fixing plate 52 are perpendicularly arranged, and the fixing plate 52 is arranged on one side of the support plate 51 in the thickness direction. At one end of the support plate 51 facing away from the fixing plate 52, a third arched portion 53 adapted to the shape of the second arched portion 431 is provided, and the third arched portion 53 is located on the side of the support plate 51 in the thickness direction facing away from the fixing plate 52. A third mounting hole 521 is formed through the fixing plate 52 in its thickness direction. During assembly, the support plate 51 is arranged vertically, the third arched portion 53 is adapted to the shape of the second arched portion 431 and is inserted into the second arched portion 431 from bottom to top. The fixing plate 52 is arranged between the positioning plate 4311 and the top plate 213 of the first fastener 21, and realizes detachable connection with the frame of the photovoltaic module 200 through the third mounting hole 521, thereby realizing the covering of the flashing edge 4 at the edge position of the photovoltaic roof.

[0102] Next, taking the application of the photovoltaic roof fixing structure in a specific photovoltaic roof as an example, the technical solution of the present application will be further elaborated. In one embodiment, a photovoltaic roof is provided, which includes the photovoltaic roof fixing structure described in any of the above embodiments, and further includes a plurality of support beams 100, a main water channel 300 provided on the support beams 100, and a secondary water channel 400 provided on the main water channel 300. Among them, the plurality of support beams 100 are arranged at uniform intervals in the horizontal direction, and a plurality of main water channels 300 are arranged at uniform intervals along the length direction of the support beams 100. The length direction of any main water channel 300 is perpendicular to the length direction of the support beams 100, and each is fixedly pressed on the upper end surface of the support beams 100 through a first fastener 21; the secondary water channels 400 are also arranged at uniform intervals along the length direction of the main water channels 300. The length direction of any secondary water channel 400 is perpendicular to the length direction of the main water channels 300, and both ends of any secondary water channel 400 are respectively supported on the upper end surfaces of adjacent main water channels 300 and communicate with the corresponding main water channels 300.

[0103] Of course, it also includes photovoltaic modules 200. The photovoltaic modules 200 are arranged between adjacent main water channels 300 and adjacent secondary water channels 400, and the clamping plates 222 of the second fasteners 22 are pressed into the secondary water channels 400; a windproof pressure seat 1 is provided between adjacent photovoltaic modules 200. The pressing plate of the windproof pressure seat 1 is fixedly pressed on the upper end surfaces of two adjacent photovoltaic modules 200, and the two first hook members 12 thereon are hooked to the first hook portions of the corresponding two first fasteners 21 or the second hook portions of the corresponding two second fasteners 22, so as to realize the fixed pressing connection of the photovoltaic modules 200 on the main water channels 300 and the secondary water channels 400.

[0104] It should be noted that the above embodiments can be freely combined according to needs. The above are only the preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A photovoltaic roof fixing structure, the photovoltaic roof comprises a water guide groove and a photovoltaic module, the water guide groove is installed between two adjacent photovoltaic modules and supports the adjacent photovoltaic modules; the water guide groove comprises a main water guide groove and a secondary water guide groove vertically arranged with the main water guide groove, characterized in that: The fixed structure comprises: A windproof pressure seat is clamped between adjacent photovoltaic modules; the top of the windproof pressure seat has a crimping piece, and the crimping piece is used to press the upper end surface of the adjacent photovoltaic module; the bottom of the windproof pressure seat has a first hooking piece; A mounting fastener is provided below the windproof pressure seat and is pressed against the water guide groove. The mounting fastener is used to connect the photovoltaic module and transfer the gravity of the photovoltaic module to the support beam of the photovoltaic roof. A second hook is provided on the top of the mounting fastener, and the second hook is used to be hooked with the first hook in the vertical direction.

2. A photovoltaic roof fixing structure according to claim 1, characterized in that: The windproof pressure seat includes a connecting plate, a crimping member and a first hooking member respectively arranged at both ends of the connecting plate; the crimping member includes a pressing plate, which is arranged at the upper end of the connecting plate and is arranged perpendicular to the connecting plate; The connecting plates include two pieces, the two connecting plates are arranged in parallel and spaced apart, and the length directions of the two connecting plates extend along the length direction of the pressing plate; The first hooking member corresponds to the connecting plate one by one and is arranged at one end of the connecting plate away from the pressing plate; The first hooking member comprises a first hook portion, and two first hook portions are respectively located on the sides of the two connecting plates which are away from each other, and the hook openings thereof are both arranged upward.

3. A photovoltaic roof fixing structure according to claim 2, characterized in that: The pressing plate is provided with two layers along its thickness direction, the two layers of pressing plates are arranged in parallel and spaced apart, and the corresponding ends of the two layers in the width direction are connected; The lower layer of the pressing plate is a two-piece structure, and the ends of the two lower layer pressing plates close to each other are connected to the corresponding connecting plates; The lower surface of the lower layer pressing plate is provided with an EPDM foam rubber strip.

4. A photovoltaic roof fixing structure according to any one of claims 1 to 3, characterized in that: The mounting fastener includes two first fasteners, each of which includes a bottom plate, a support plate and a top plate; the bottom plate and the top plate are arranged in parallel and spaced apart, the support plate is vertically arranged between the bottom plate and the top plate, and the bottom plate and the top plate are respectively located on both sides of the support plate in the thickness direction, so that the first fastener has a Z-shaped structure; The second hooking member includes a second hook portion, which is formed at one end of the top plate away from the support plate and is located on the lower surface of the top plate; The second hook portions on the two first fasteners are arranged facing each other; The top plate is arranged horizontally and is used to support and connect the photovoltaic components; The bottom plate is used for being detachably fixedly connected to the support beam.

5. A photovoltaic roof fixing structure according to claim 4, characterized in that: A first mounting hole is opened in the middle of the bottom plate, and the first mounting hole is used to adapt to the connecting piece on the support beam; A bending portion is formed at one end of the top plate close to the support plate, and the shape of the bending portion is adapted to the side edge of the main water channel; the bending portion protrudes from the upper surface of the top plate; A second mounting hole is formed at one end of the top plate away from the support plate and passes through the top plate in its thickness direction. The second mounting hole is used to fit a fixing piece on the frame of the photovoltaic assembly.

6. A photovoltaic roof fixing structure according to claim 5, characterized in that: A tooth-shaped stopper is provided on one side of the support plate close to the top plate, and the flange of the side edge of the main water trough abuts against the upper end surface of the tooth-shaped stopper.

7. A photovoltaic roof fixing structure according to claim 1, characterized in that: The mounting fastener includes two second fasteners, each of the two second fasteners includes a vertical plate and a clamping plate, the vertical plate and the clamping plate are vertically arranged, and the clamping plate is located on one side of the vertical plate in the thickness direction, so that the second fastener is an L-shaped structure; The second hooking member includes a third hook portion, which is formed at one end of the vertical plate away from the clamping plate and is located on a side of the vertical plate away from the clamping plate in the thickness direction; the third hook portions on the two second fasteners are arranged facing each other; One end of the clamping plate away from the vertical plate is folded upward to form an abutting plate for abutting against the inner wall of the secondary water guide groove.

8. A photovoltaic roof fixing structure according to claim 5, characterized in that: It also includes a flashing edge, the flashing edge is a U-shaped structure, including a first side edge, a bottom edge and a second side edge connected in sequence, the first side edge and the second side edge are arranged in parallel and spaced apart, and are perpendicular to the bottom edge; A side of the first side facing away from the second side is bent to form a first arch portion, the first arch portion is adapted to the shape of the side edge of the main water channel, and is arranged on the side edge of the main water channel away from the photovoltaic module; A side of the second side facing away from the first side is bent to form a second arch portion, the second arch portion is higher than the first arch portion, and the second arch portion is close to the side wall of the photovoltaic component and presses against the side wall surface of the photovoltaic component; The side wall of the second arch portion close to the photovoltaic component is bent to form a connecting plate, and the connecting plate is clamped between the top plate and the photovoltaic component.

9. A photovoltaic roof fixing structure according to claim 8, characterized in that: It also includes an edge fastener, which is an L-shaped structure, including a support plate and a fixed plate, the support plate and the fixed plate are arranged vertically, and the fixed plate is arranged on one side of the support plate in the thickness direction; The support plate is vertically arranged, and a third arch is provided at one end away from the fixing plate, the third arch matches the shape of the second arch and is embedded in the second arch from bottom to top; The fixing plate is arranged between the connecting plate and the top plate of the first fastener, and a third mounting hole is opened on the fixing plate corresponding to the second mounting hole.

10. A photovoltaic roof, characterized in that: The photovoltaic roof fixing structure comprises any one of claims 1 to 9, and further comprises: A plurality of support beams arranged at even intervals; A plurality of main water troughs are evenly spaced along the length direction of the support beam, the length direction of any of the main water troughs is perpendicular to the length direction of the support beam, and are detachably fixedly connected to the support beam via the mounting fasteners; A plurality of auxiliary water guide grooves are evenly spaced along the length direction of the main water guide groove, the length direction of any auxiliary water guide groove is perpendicular to the length direction of the main water guide groove, and both ends of the auxiliary water guide groove are respectively supported on the upper end surface of the adjacent main water guide groove and are connected to the corresponding main water guide groove; The photovoltaic components are arranged between adjacent main water channels and adjacent secondary water channels. Windproof pressure seats are provided between adjacent photovoltaic components. The first hook of the windproof pressure seat is hooked with the second hook corresponding to the mounting fastener to achieve fixed pressure connection of the photovoltaic components on the main water channel and the secondary water channel.

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