Photovoltaic roof

Abstract

The present invention provides a photovoltaic roof, which relates to the technical field of photovoltaic building integration. The photovoltaic roof includes: a roof panel, a guide rail, a locking support, a connecting clamp, a photovoltaic module and a roof purlin. In the present application, the clamping structure provided at the other end of the connecting clamp can restrict the first bending portion of the roof panel and the first clamping protrusion of the guide rail in the clamping structure when clamping the second bending portion of the adjacent roof panel, that is, the guide rail is provided inside the roof panel, so that the guide rail can play a certain supporting role on the roof panel, and avoid the concentrated load on the connecting clamp being directly loaded on the weak roof panel when subjected to wind suction or load, causing the roof panel to be damaged. Furthermore, the position of the locking support can be made not to correspond to the position of the clamping structure of the connecting clamp, so that the distance between the locking supports can be appropriately increased, that is, the distance between the roof purlins is increased, the number of roof purlins is reduced, materials are saved, and costs are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic building integration, and in particular to a photovoltaic roof. Background Art

[0002] Solar photovoltaic power generation technology has become the main direction for the development and utilization of new energy. Among them, Building Integrated Photovoltaic (BIPV) is a new photovoltaic application method that combines photovoltaic modules with buildings and has broad market prospects.

[0003] At present, the existing BIPV installation method mainly connects adjacent roof panels through wind clips, and uses wind clips to fix the guide rails on the locking ribs of adjacent roof panels, and then installs photovoltaic modules on the guide rails. This installation method will transfer the wind suction force and snow load in heavy snow weather on the photovoltaic modules to the locking ribs of the metal roof panels through the guide rails and wind clips, causing stress concentration on the metal roof panels at the installation position of the wind clips. At the same time, the metal roof panels are connected to the load-bearing roof purlins located below the metal roof panels through metal supports, and the installation position of the wind clips needs to correspond to the position of the metal supports to reduce the impact of the wind clips on the stress concentration of the metal roof panels.

[0004] However, in the prior art, after the metal roof panel is installed, the position of the metal support cannot be seen, resulting in the installation position of the wind-resistant clip deviating from the position of the metal support. When subjected to wind suction or load, the concentrated load on the wind-resistant clip will be directly loaded on the weak metal roof panel, thereby causing damage to the metal roof panel. Summary of the invention

[0005] The present invention provides a photovoltaic roof, aiming to solve the problem that the roof panels of the photovoltaic roof are easily damaged in photovoltaic building integration.

[0006] An embodiment of the present invention provides a photovoltaic roof, which includes: a roof panel, a guide rail, a locking support, a connecting clamp, a photovoltaic module and a roof purlin;

[0007] The guide rail is arranged along a direction perpendicular to the extension direction of the roof purlin, a first clamping protrusion is arranged at one end of the guide rail close to the photovoltaic module, and a first slide groove is arranged at one end of the guide rail close to the roof purlin;

[0008] The roof panel comprises a bottom panel and side panels arranged on opposite sides of the bottom panel and extending toward the photovoltaic module, wherein the side panels are respectively provided with a first bending portion and a second bending portion at one end away from the bottom panel, the first bending portion of the roof panel is buckled on the first clamping protrusion of the guide rail, and the second bending portion of the adjacent roof panel is buckled on the outside of the first bending portion;

[0009] One end of the locking support is connected to the roof purlin, and the other end of the locking support is provided with a boss structure, and the boss structure of the locking support is arranged in the first slide groove of the guide rail to connect the locking support and the guide rail;

[0010] One end of the connecting clamp is provided with a connecting platform connected to the photovoltaic component, and the other end of the connecting clamp is provided with a clamping structure, and the clamping structure clamps the second bending portion of the adjacent roof panel to restrict the first bending portion of the roof panel and the first clamping protrusion of the guide rail in the clamping structure to complete the installation of the photovoltaic component.

[0011] Optionally, the photovoltaic roof further comprises: an adapter, and a hanging member glued and fixed to a side of the photovoltaic assembly close to the roof purlin;

[0012] A support platform is provided at one end of the hanging member close to the photovoltaic assembly, and a hanging platform is provided at one end of the hanging member away from the photovoltaic assembly, and the support platform of the hanging member is glued and fixed to the photovoltaic assembly;

[0013] The adapter comprises a second slide groove and a hanging groove, and the hanging platform in the hanging member is arranged in the hanging groove of the adapter to realize the hanging of the hanging member and the adapter;

[0014] The adapter is fixedly connected to the connecting platform of the connecting fixture via bolts arranged in the second sliding groove.

[0015] Optionally, the hanging member includes a first hanging member fixed at a side position of the photovoltaic component and a second hanging member fixed at a middle position of the photovoltaic component, and the adapter includes a first adapter connected to the first hanging member and a second adapter connected to the second hanging member.

[0016] Optionally, a component buckle is provided at one end of the supporting platform in the first hanging member, and the side edge of the photovoltaic component is provided in the component buckle.

[0017] Optionally, the first hanging member includes a first cavity structure, and a hanging platform in the first hanging member is arranged on a side of the first cavity structure close to the roof purlin.

[0018] Optionally, the photovoltaic roof further comprises a block structure;

[0019] The pressing block structure includes a pressing body, a bolt hole arranged on the pressing body, and a pressing leg structure arranged on two opposite sides of the pressing body;

[0020] The first hanging member also includes a pressing groove structure, and the first adapter also includes a third slide groove. The pressing block structure uses bolts arranged in the third slide groove and the bolt hole to crimp the leg structure of the pressing block structure in the pressing groove structure of the first hanging member connected to the two adjacent photovoltaic components. The first hanging member connected to the two adjacent photovoltaic components is crimped through the pressing block structure.

[0021] Optionally, in the case where the photovoltaic component is an epitaxial photovoltaic component located outside the component array, the pressure leg structure in the pressure block structure includes a first pressure leg division and a second pressure leg division arranged on opposite sides of the pressure connection body;

[0022] The first press leg section is press-connected in the press groove structure of the first hanging component, and the second press leg section is press-connected on the first adapter.

[0023] Optionally, the first hanging member is arranged at a short side of the photovoltaic component.

[0024] Optionally, the second hanging member includes a second cavity structure, and the hanging platform in the second hanging member includes a first hanging platform section and a second hanging platform section, and the first hanging platform section and the second hanging platform section are arranged on a side of the second cavity structure close to the roof purlin;

[0025] The hanging groove in the second adapter includes a first hanging groove section and a second hanging groove section, the first hanging platform section is arranged in the first hanging groove section, and the second hanging platform section is arranged in the second hanging groove section, so as to realize the hanging of the second hanging member and the second adapter.

[0026] Optionally, the photovoltaic roof further includes a limit bolt;

[0027] In the first slide groove of the guide rail, the limiting bolts are respectively arranged on opposite sides of the boss structure of the edge locking support.

[0028] Optionally, the edge locking support includes a support portion and a base, the boss structure is arranged at one end of the support portion, and the base is arranged at the other end of the support portion;

[0029] The base of the locking support is connected to the roof purlin through self-tapping screws;

[0030] A heat insulating gasket is arranged between the base and the roof purlin.

[0031] Optionally, the guide rail further includes a second clamping protrusion, and the side plate of the roof panel is provided with a clamping structure matching the second clamping protrusion;

[0032] The first bent portion of the roof panel is buckled on the first clamping protrusion of the guide rail, and the second bent portion of the adjacent roof panel is buckled on the outside of the first bent portion, and the clamping structure of the roof panel is clamped on the second clamping protrusion of the guide rail.

[0033] Optionally, the guide rail further includes a core insertion cavity, and the photovoltaic roof includes a core insertion structure;

[0034] The insert core structure is arranged in the insert core cavities of two adjacent guide rails along the extension direction of the guide rails.

[0035] Optionally, a bending portion of the first bending portion is provided with a groove structure.

[0036] Optionally, the connecting fixture comprises a first sub-part and a second sub-part, and the first sub-part and the second sub-part are both provided with a connecting body;

[0037] The connecting bodies of the first sub-part and the second sub-part are both provided with corresponding bolt holes, and the first sub-part and the second sub-part are clamped to each other by bolts passing through the bolt holes;

[0038] The connection platform is disposed at one end of the connection body of the first sub-part or the second sub-part, or the connection platform sub-parts are disposed at one end of the connection bodies of the first sub-part and the second sub-part, respectively, and the two connection platform sub-parts are connected to the photovoltaic module;

[0039] The clamping structure includes clamping head structures respectively arranged at the other end of the connecting body of the first section and the second section. When the first section and the second section are clamped to each other, the two clamping head structures clamp the second bending parts of the adjacent roof panels.

[0040] Based on the above photovoltaic roof, the present application has the following beneficial effects: In the present application, the clamping structure provided at the other end of the connecting clamp can restrict the first bending portion of the roof panel and the first clamping protrusion of the guide rail in the clamping structure when the second bending portion of the adjacent roof panel is clamped, that is, when the clamping structure is clamped, since the guide rail is provided inside the roof panel, the guide rail can play a certain supporting role for the roof panel, thereby avoiding the concentrated load on the connecting clamp directly loading on the weak roof panel and causing the roof panel to be damaged when subjected to wind suction or load. Furthermore, the position of the locking edge support can be made not to correspond to the position of the clamping structure of the connecting clamp, so that the distance between the locking edge supports can be appropriately increased, that is, the distance between the roof purlins can be increased, the number of roof purlins can be reduced, materials can be saved, and costs can be reduced. In the present application, a hanging part and an adapter that are adhesively fixed to the back of the photovoltaic module can also be provided, so that after the connecting fixture is clamped to two adjacent roof panels, the adapter can be fixedly connected to the connecting fixture, and then the hanging and adapter that are pre-adhesively fixed to the photovoltaic module can be hung to complete the installation of the photovoltaic module, that is, the photovoltaic module can be pre-fixed on the hanging part, and the hanging part and the adapter can be directly hung and connected, so as to achieve rapid installation. In addition, in the present application, the connection method between the locking support and the guide rail is to set the boss structure of the locking support in the first slide groove of the guide rail to achieve a sliding connection between the guide rail and the locking support, that is, to allow the locking support and the guide rail to slip, thereby solving the problem of thermal expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0042] Figure 1 A front view of a photovoltaic roof in an embodiment of the present invention is shown;

[0043] Figure 2 A schematic diagram showing the connection between a guide rail and a roof purlin in an embodiment of the present invention is shown;

[0044] Figure 3 A schematic structural diagram of a guide rail in an embodiment of the present invention is shown;

[0045] Figure 4 A schematic structural diagram of a roof panel in an embodiment of the present invention is shown;

[0046] Figure 5 A schematic structural diagram of a locking support in an embodiment of the present invention is shown;

[0047] Figure 6 A schematic diagram showing the connection of a roof panel, a guide rail and a locking support in an embodiment of the present invention is shown;

[0048] Figure 7 A schematic structural diagram of a connecting fixture in an embodiment of the present invention is shown;

[0049] Figure 8 A schematic diagram showing the connection of a roof panel, a guide rail, a locking support and a connecting fixture in an embodiment of the present invention is shown;

[0050] Fig. 9 A side view of a photovoltaic roof in an embodiment of the present invention is shown;

[0051] Fig.10 A schematic structural diagram of a first hanging member in an embodiment of the present invention is shown;

[0052] Fig.11 A schematic structural diagram of a second hanging member in an embodiment of the present invention is shown;

[0053] Fig.12 A schematic structural diagram of a first adapter in an embodiment of the present invention is shown;

[0054] Fig.13 A schematic structural diagram of a second adapter in an embodiment of the present invention is shown;

[0055] Fig.14 A schematic diagram showing a mounting structure at the side of a photovoltaic module in an embodiment of the present invention is shown;

[0056] Fig.15 A schematic diagram showing a hanging structure at the middle position of a photovoltaic assembly in an embodiment of the present invention is shown;

[0057] Fig.16 A schematic diagram of the installation of a hanging component in an embodiment of the present invention is shown;

[0058] Fig.17 A schematic diagram of the structure of a photovoltaic roof in an embodiment of the present invention is shown;

[0059] Fig.18 A schematic structural diagram of a pressing block structure in an embodiment of the present invention is shown;

[0060] Fig.19 A schematic diagram showing the connection of a pressing block structure in an embodiment of the present invention is shown;

[0061] Fig. 20 A schematic structural diagram of another pressing block structure in an embodiment of the present invention is shown;

[0062] Fig.21 A connection schematic diagram of another pressing block structure in an embodiment of the present invention is shown;

[0063] Fig. 22 A schematic diagram of the connection between a guide rail and a locking support in an embodiment of the present invention is shown.

[0064] Description of the accompanying drawings:

[0065] 10-roof panel, 11-bottom plate, 12-side plate, 13-first bending portion, 14-second bending portion, 15-clamping structure, 16-groove structure, 20-guide rail, 21-first clamping protrusion, 22-first slide groove, 23-second clamping protrusion, 24-insertion core cavity, 30-locking support, 31-boss structure, 32-support portion, 33-base, 40-connecting fixture, 41-connecting platform, 42-clamping structure, 43-first subdivision, 44-second subdivision, 45-connecting body, 46-bolt hole, 47-clamping structure, 50-photovoltaic module, 51-epitaxial photovoltaic module, 60-roof purlin, 70-adapter, 71-first adaptor, 72-second Adapter, 73-second slide groove, 74-hanging groove, 741-first hanging groove section, 742-second hanging groove section, 75-third slide groove, 76-transfer platform, 77-third cavity structure, 80-hanging part, 81-first hanging part, 82-second hanging part, 83-support platform, 84-hanging platform, 841-first hanging platform section, 842-second hanging platform section, 85-assembly buckle, 86-first cavity structure, 87-pressing groove structure, 88-second cavity structure, 90-pressing block structure, 91-pressing body, 92-bolt hole, 93-pressing leg structure, 931-first press leg section, 932-second press leg section, 100-limiting bolt. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] With the large-scale installation of photovoltaic power stations, the land for ground photovoltaic power generation is becoming less and less. Installing photovoltaic modules on buildings can provide a site for photovoltaic power generation on the one hand, and on the other hand, it also brings new options and elements to buildings. There are many roofs suitable for installing photovoltaic modules, but large-span metal roofs are more suitable for the application of mass-produced photovoltaic modules. BIPV is a technology that integrates solar power generation modules (photovoltaic modules) into buildings. It can combine photovoltaic modules and roof panels on the outer surface of the building through gluing and other methods to enable the building to have photovoltaic power generation capabilities.

[0068] In BIPV technology, the materials used for large-span metal roofs are mainly galvanized steel plates, stainless steel plates, aluminum alloy plates, etc. Common roofs include industrial plant roofs, public buildings such as airports, railway stations, stadiums, exhibition centers, etc. The characteristics of these roofs are that they occupy a large area and are usually tens of meters high. Due to these characteristics of the roof, the roof is easily affected by strong winds and damaged by wind, so the wind-resistant ability of the roof is a key issue that needs to be addressed for these large-span metal roofs. Similarly, if photovoltaic systems are installed on these large-span metal roofs, it is also necessary to focus on the impact of photovoltaic installation on the wind-resistant ability of the metal roof.

[0069] The existing method of installing photovoltaic modules on metal roofs mainly uses wind-resistant clips to install the guide rail bracket on the locking rib of the metal roof, and then installs the photovoltaic module on the guide rail fixed by the guide rail bracket. This installation method will transfer the wind suction force and snow load in heavy snow weather to the locking rib of the metal roof through the guide rail and wind-resistant clips, thereby generating stress concentration at the position corresponding to the wind-resistant clip on the metal roof. Furthermore, the metal roof is fixedly installed with the roof purlin weighed below the roof through metal supports. Therefore, it is necessary to ensure that the installation position of the wind-resistant clip corresponds to the position of the metal support to reduce the damage caused by stress concentration on the metal roof.

[0070] Therefore, the existing method of installing photovoltaic modules on metal roofs will cause three problems. First, after the metal roof is installed, the position of the metal support cannot be seen above the metal roof, which makes it difficult to find the installation position of the wind clamp, so it is installed at a position deviating from the metal support. When subjected to wind suction or load, the concentrated load on the wind clamp will be directly loaded on the weak metal roof panel, causing damage to the metal roof panel. Second, because the spacing of the metal supports matches the spacing of the roof purlins, when the wind clamps are installed at the corresponding positions of the metal supports, the spacing of the guide rails will be consistent with the spacing of the roof purlins, resulting in the installation point of the photovoltaic module on the guide rail not necessarily being the best force point position of the photovoltaic module, which will reduce the bearing capacity of the photovoltaic module. To solve this problem, it is necessary to use double-layer guide rails, but the use of double-layer guide rails will increase the cost of the system and increase the load-bearing capacity of the roof system. Third, since the wind-resistant clip is fixed by static friction, in order to ensure reliable installation, the wind-resistant clip needs to have a very large clamping force. Excessive clamping force will cause the metal roof and the metal support to be tightly combined at the clamping position. Since the metal roof deforms greatly due to thermal expansion and contraction, it is generally necessary to ensure that there is a certain gap between the metal roof and the metal support to ensure that the metal roof and the metal support can slide relative to each other, thereby releasing the stress of thermal expansion and contraction. If the wind-resistant clip clamps the metal roof and the metal support so that the metal roof cannot slide relative to the metal support, long-term use will greatly reduce the service life of the metal roof.

[0071] Reference Figure 1 , Figure 1 A front view of a photovoltaic roof in an embodiment of the present invention is shown. The photovoltaic roof may include a roof panel 10, a guide rail 20, a locking support 30, a connecting clamp 40, a photovoltaic module 50 and a roof purlin 60.

[0072] in, Figure 2 FIG. 1 shows a schematic diagram of a connection between a guide rail and a roof purlin in an embodiment of the present invention, referring to FIG. Figure 2 The guide rail 20 is arranged along the entire length perpendicular to the extending direction of the roof purlin 60. Figure 3 A schematic diagram of the structure of a guide rail in an embodiment of the present invention is shown. Figure 3 A first clamping protrusion 21 is provided at one end of the guide rail 20 close to the photovoltaic assembly 50 , and a first sliding groove 22 is provided at one end of the guide rail 20 close to the roof purlin 60 .

[0073] Figure 4 A schematic diagram of the structure of a roof panel in an embodiment of the present invention is shown. Figure 4 The roof panel 10 includes a bottom panel 11 and side panels 12 arranged on opposite sides of the bottom panel 11 and extending toward the photovoltaic module 50, wherein the side panels 12 are respectively provided with a first bending portion 13 and a second bending portion 14 at one end away from the bottom panel 11. Figure 5 A schematic diagram of the structure of a locking support in an embodiment of the present invention is shown. Figure 5 A boss structure 31 is provided at one end of the locking support 30 close to the photovoltaic component 50 .

[0074] Figure 6 A schematic diagram of the connection between a roof panel, a guide rail and a locking support in an embodiment of the present invention is shown. Figure 6 The first bending portion 13 of the roof panel 10 is buckled on the first clamping protrusion 21 of the guide rail 20, and the second bending portion 14 of the adjacent roof panel 10 is buckled on the outside of the first bending portion 13. The guide rail 20 realizes the connection between the adjacent roof panels 10. At the same time, the roof panel 10 and the guide rail 20 are connected to each other through clamping. One end of the locking support 30 is connected to the roof purlin 60, and the other end of the locking support 30 is provided with a boss structure 31. The boss structure 31 of the locking support 30 is set in the first slide groove 22 of the guide rail 20 to connect the locking support 30 and the guide rail 20, so as to realize the sliding connection between the guide rail 20 and the locking support 30, that is, to allow the locking support 30 and the guide rail 20 to slip, thereby solving the problem of thermal expansion and contraction.

[0075] Figure 7 A schematic diagram of the structure of a connecting fixture in an embodiment of the present invention is shown. Figure 7 One end of the connecting fixture 40 is provided with a connecting platform 41 connected to the photovoltaic module 50, and the other end of the connecting fixture 40 is provided with a clamping structure 42. Figure 8 A schematic diagram of the connection of a roof panel, a guide rail, a locking support and a connecting fixture in an embodiment of the present invention is shown, referring to Figure 8 The clamping structure 42 of the connecting clamp 40 clamps the second bending portion 14 of the adjacent roof panel 10 to restrict the second bending portion 14, the first bending portion 13 of the roof panel 10 and the first clamping protrusion 21 of the guide rail 20 in the clamping structure 42, thereby realizing the connection between the connecting clamp 40 and the roof panel 10 and the guide rail 20.

[0076] It can be seen from the above structure that the clamping structure 42 in the connecting clamp 40 clamps two adjacent roof panels 10 with guide rails 20 arranged inside, thereby ensuring the connection reliability between the roof panels 10 and the guide rails 20. At the same time, since the guide rails 20 are arranged inside the roof panels 10, they can support the roof panels 10, thereby avoiding damage to the roof panels 10 when the clamping structure 42 of the connecting clamp 40 clamps the roof panels 10.

[0077] Furthermore, the boss structure 31 of the locking support 30 can be slid into the first slide groove 22 from one side of the guide rail 20 to realize the sliding connection between the guide rail 20 and the locking support 30; and then the end of the locking support 30 away from the boss structure 31 can be connected to the roof purlin 60 by self-tapping screws, and the photovoltaic component 50 can be connected to the connecting platform 41 at one end of the connecting clamp 40, thereby completing the installation of the photovoltaic component 50.

[0078] In addition, since the guide rail 20 is arranged along the extension direction perpendicular to the roof purlin 60, the position of the locking support 30 may not correspond to the position of the clamping structure 42 of the connecting clamp 40, so that even after the roof panel 10 is installed, the installer cannot see the position of the locking support 30 above the roof panel 10 and can still successfully install the connecting clamp 40. Fig. 9 A side view of a photovoltaic roof in an embodiment of the present invention is shown, referring to Fig. 9 , the locking support 30 may not correspond to the position of the connecting clamp 40 one by one, and the distance between the locking supports 30 in the photovoltaic roof can be appropriately increased, that is, the distance between the roof purlins 60 can be increased, thereby reducing the number of locking supports 30 and roof purlins 60, saving materials and reducing costs. Furthermore, the position of the connecting clamp 40 can also be freed from the limitation of the position of the locking support 30, so that the installation position of the connecting clamp 40 can be determined according to the size of the photovoltaic module 50, ensuring that the installation position of the photovoltaic module 50 is the best force point position of the photovoltaic module 50, and ensuring that the photovoltaic module 50 has a certain bearing capacity without using a double-layer guide rail 20.

[0079] In an embodiment of the present invention, a photovoltaic roof comprises: a roof panel, a guide rail, a locking support, a connecting fixture, a photovoltaic module and a roof purlin; the guide rail is arranged along the extension direction perpendicular to the roof purlin, and a first clamping protrusion is arranged at one end of the guide rail close to the photovoltaic module, and a first slide groove is arranged at one end of the guide rail close to the roof purlin; the roof panel comprises a bottom plate and side plates arranged on opposite sides of the bottom plate and extending toward the photovoltaic module, and a first bending portion and a second bending portion are respectively arranged at one end of the side plate away from the bottom plate, and the first bending portion of the roof panel is buckled on the first clamping protrusion of the guide rail. The second bend of the adjacent roof panel is buckled on the outside of the first bend; one end of the lock edge support is connected to the roof purlin, and the other end of the lock edge support is provided with a boss structure, and the boss structure of the lock edge support is arranged in the first slide groove of the guide rail to connect the lock edge support and the guide rail; one end of the connecting clamp is provided with a connecting platform connected to the photovoltaic module, and the other end of the connecting clamp is provided with a clamping structure, and the clamping structure clamps the second bend of the adjacent roof panel to limit the first bend of the roof panel and the first clamping protrusion of the guide rail in the clamping structure to complete the installation of the photovoltaic module. In the present application, the clamping structure provided at the other end of the connecting clamp can limit the first bend of the roof panel and the first clamping protrusion of the guide rail in the clamping structure when clamping the second bend of the adjacent roof panel, that is, in the state where the clamping structure is clamped, since the guide rail is arranged inside the roof panel, the guide rail can play a certain supporting role on the roof panel, so as to avoid the concentrated load on the connecting clamp being directly loaded on the weak roof panel under the condition of wind suction or load, thereby causing the roof panel to be damaged. Furthermore, the position of the locking support may not correspond to the position of the clamping structure of the connecting clamp, so that the distance between the locking supports can be appropriately increased, that is, the distance between the roof purlins can be increased, the number of roof purlins can be reduced, materials can be saved, and costs can be reduced.

[0080] Optional, see Figure 1 The photovoltaic roof may further include: an adapter 70, and a hanging member 80 glued and fixed to the photovoltaic assembly 50 on one side close to the roof purlin 60.

[0081] Fig.10 FIG. 1 shows a schematic structural diagram of a first hanging member in an embodiment of the present invention. Fig.11 A schematic diagram of the structure of a second hanging member in an embodiment of the present invention is shown, referring to Fig.10 and Fig.11 A support platform 83 is provided at one end of the hanging member 80 close to the photovoltaic assembly 50 , so that it can be glued and fixed to the photovoltaic assembly 50 through the support platform 83 , and a hanging platform 84 is provided at one end of the hanging member 80 away from the photovoltaic assembly 50 .

[0082] Fig.12 shows a schematic structural diagram of a first adapter in an embodiment of the present invention, Fig.13FIG. 1 shows a schematic diagram of the structure of a second adapter in an embodiment of the present invention, referring to FIG. Fig.12 and Fig.13 The adapter 70 includes a second sliding groove 73 and a hanging groove 74 .

[0083] Among them, the first hanging member 81 can be a hanging member fixed at the side position of the photovoltaic component 50, used to be hung with the first adapter 71, and the second hanging member 82 can be a hanging member fixed at the middle position of the photovoltaic component 50, used to be hung with the second adapter 72.

[0084] Fig.14 FIG. 1 is a schematic diagram showing a hanging structure at the side of a photovoltaic assembly in an embodiment of the present invention, that is, a schematic diagram of a hanging structure formed by a first hanging member 81 and a first adapter 71. Fig.15 A schematic diagram of a hanging structure at a middle position of a photovoltaic assembly in an embodiment of the present invention is shown, that is, a schematic diagram of a hanging structure formed by a second hanging member 82 and a second adapter 72 .

[0085] Reference Fig.14 and Fig.15 The hanging platform 84 in the first hanging member 81 is arranged in the hanging groove 74 of the first adapter 71, so that the hanging of the first hanging member 81 and the first adapter 71 can be realized; the hanging platform 84 in the second hanging member 82 is arranged in the hanging groove 74 of the second adapter 72, so that the hanging of the second hanging member 82 and the second adapter 72 can be realized.

[0086] Further, see Fig.14 and Fig.15 The first adapter 71 can be fixedly connected to the connecting platform 41 of the connecting fixture 40 by means of bolts arranged in the second slide groove 73, thereby realizing a fixed connection between the first adapter 71 and the connecting fixture 40; the second adapter 72 can be fixedly connected to the connecting platform 41 of the connecting fixture 40 by means of bolts arranged in the second slide groove 73, thereby realizing a fixed connection between the second adapter 72 and the connecting fixture 40.

[0087] It can be seen that the hanging member 80 bonded and fixed to the back of the photovoltaic module 50 can be hung with the adapter 70, and the adapter 70 is fixedly connected with the connecting fixture 40, so that after the connecting fixture 40 is clamped to two adjacent roof panels 10, the adapter 70 is fixedly connected with the connecting fixture 40, and then the hanging member 80 pre-bonded and fixed to the photovoltaic module 50 is hung with the adapter 70 to complete the installation of the photovoltaic module 50. That is, the photovoltaic module 50 can use the pre-fixed hanging member 80 to achieve rapid installation through the hanging connection with the adapter 70.

[0088] In the embodiment of the present invention, the bonding material used to bond the photovoltaic module 50 and the hanging member 80 may be silicone structural adhesive, double-sided tape, polyurethane, acrylic acid or other bonding materials.

[0089] Optionally, the hanging member 80 may include a first hanging member 81 fixed at a side position of the photovoltaic component 50 and a second hanging member 82 fixed at a middle position of the photovoltaic component 50. Accordingly, the adapter 70 may include a first adapter 71 hung with the first hanging member 81 and a second adapter 72 hung with the second hanging member 82.

[0090] Fig.16 FIG. 1 shows a schematic diagram of the installation of a hanging member in an embodiment of the present invention, referring to FIG. Fig.16 A first hanging member 81 and a second hanging member 82 bonded with structural adhesive are provided on one side of the photovoltaic component 50 close to the roof purlin 60, wherein the first hanging member 81 is installed on the side of the photovoltaic component 50, and the second hanging member 82 is installed in the middle position of the photovoltaic component 50, and the specific position distribution of the first hanging member 81 and the second hanging member 82 needs to be determined in combination with the width of the roof panel 10 and the size of the photovoltaic component 50.

[0091] Optionally, the first hanging member 81 may be arranged at a short side of the photovoltaic assembly 50. Fig.17 A schematic diagram of the structure of a photovoltaic roof in an embodiment of the present invention is shown. Fig.17 The first hanging member 81 is arranged at the short side of the photovoltaic component 50, that is, the long side of the photovoltaic component 50 is parallel to the extension direction of the guide rail 20, so as to ensure that the force on the photovoltaic component 50 is uniform, so that the carrying capacity of the photovoltaic component 50 is stronger.

[0092] Optional, see Fig.10 , a component buckle 85 is provided at one end of the support platform 83 in the first hanging member 81. When the first hanging member 81 is bonded to the photovoltaic module 50 by the structural adhesive, the side of the photovoltaic module 50 can be set in the component buckle 85. Since the photovoltaic roof installed on the roof of the building generally has a certain inclination angle, the photovoltaic module 50 will generate shear force on the structural adhesive due to its own weight when it is tilted. The component buckle 85 is provided at one end of the support platform 83 of the first hanging member 81, so that the side of the photovoltaic module 50 is set in the component buckle 85. The component buckle 85 can play a certain supporting role on the tilted photovoltaic module 50, thereby avoiding the shear force generated by the self-weight of the photovoltaic module 50 on the structural adhesive, and improving the connection reliability between the photovoltaic module 50 and the first hanging member 81.

[0093] Optional, see Fig.10The first hanging member 81 may further include a first cavity structure 86 , wherein the hanging platform 84 in the first hanging member 81 is arranged on a side of the first cavity structure 86 close to the roof purlin 60 , thereby enhancing the structural strength of the first hanging member 81 .

[0094] Optional, see Fig.11 The second hanging member 82 may further include a second cavity structure 88, so as to enhance the structural strength of the second hanging member 82. The hanging platform 84 in the second hanging member 82 may include two sections: a first hanging platform section 841 and a second hanging platform section 842, wherein the first hanging platform section 841 and the second hanging platform section 842 are arranged on one side of the second cavity structure 88 close to the roof purlin 60.

[0095] Correspondingly, the hanging groove 74 in the second adapter 72 that is mutually hung with the second hanging member 82 may include two divisions: a first hanging groove division 741 and a second hanging groove division 742. Correspondingly, when the second hanging member 82 and the second adapter 72 are hung with each other, the first hanging platform division 841 is arranged in the first hanging groove division 741, and the second hanging platform division 842 is arranged in the second hanging groove division 742, thereby realizing the hanging of the second hanging member 82 and the second adapter 72.

[0096] Optionally, the photovoltaic roof may further include a block structure 90, Fig.18 A schematic diagram of a block structure in an embodiment of the present invention is shown, referring to Fig.18 The pressing block structure 90 may include a pressing body 91, a bolt hole 92 disposed on the pressing body 91, and a pressing leg structure 93 disposed on opposite sides of the pressing body 91. Fig.10 The first hanging member 81 may also include a groove structure 87, referring to Fig.12 The first adapter 71 may further include a third sliding groove 75 . Fig.19 A schematic diagram of the connection of a pressing block structure in an embodiment of the present invention is shown. Fig.19 The pressing block structure 90 is crimped by the bolts arranged in the third slide groove 75 of the first adapter 71 and the bolt hole 92 of the pressing block structure 90, and the two pressing leg structures 93 of the pressing block structure 90 are respectively crimped in the pressing groove structure 87 of the first hanging member 81 connected to the two adjacent photovoltaic components 50, so that the first hanging member 81 connected to the two adjacent photovoltaic components 50 can be crimped by the pressing block structure 90, and the pressing block structure 90 is locked to the first adapter 71 by the bolts passing through the bolt hole 92 and the third slide groove 75, thereby preventing the hanging between the first hanging member 81 and the first adapter 71 from loosening or sliding sideways.

[0097] In the embodiment of the present invention, a pressing block 90 is used between two adjacent photovoltaic modules 50 to lock the photovoltaic modules 50, so that the photovoltaic modules 50 are fixed quickly and stably to prevent left-right sliding and loosening.

[0098] It should be noted that the second hanging member 82 and the second adapter 72 located in the middle of the photovoltaic assembly 50 are directly connected by hanging without a pressing block structure for pressing and without bolts for locking.

[0099] Optionally, when the photovoltaic component 50 is located at the epitaxial portion of a component array composed of a plurality of photovoltaic components 50, that is, when the photovoltaic component 50 is an epitaxial photovoltaic component 51, refer to Fig. 20 , Fig. 20 A schematic structural diagram of another pressing block structure in an embodiment of the present invention is shown. The pressing leg structure 93 in the pressing block structure 90 may include a first pressing leg section 931 and a second pressing leg section 932 arranged on opposite sides of the crimping body 91 . Fig.21 FIG. 1 shows a schematic diagram of another block structure in an embodiment of the present invention. Fig.21 When the pressing block structure 90 is used to press the first hanging member 81 and the first adapter 71 connected to the epitaxial photovoltaic component 51, the first pressing leg section 931 of the pressing block structure 90 is pressed into the pressing groove structure 87 of the first hanging member 81, and the second pressing leg section 932 is pressed onto the first adapter 71.

[0100] Reference Fig.18 and Fig. 20 When the pressing block structure 90 is used to crimp two adjacent photovoltaic components 50, the heights of the two pressing leg structures 93 in the pressing block structure 90 are equal. When the pressing block structure 90 is used to crimp the epitaxial photovoltaic component 51, the heights of the two pressing leg structures in the pressing block structure 90: the first pressing leg division 931 and the second pressing leg division 932 are not equal. The height of the first pressing leg division 931 crimped in the pressing groove structure 87 of the first hanging component 81 is less than the height of the second pressing leg division 932 crimped on the first adapter 71.

[0101] Optional, Fig. 22 A schematic diagram of the connection between a guide rail and a locking support in an embodiment of the present invention is shown, referring to Fig. 22 The photovoltaic roof may further include a limiting bolt 100. When connecting the guide rail 20 and the locking support 30, the boss structure 31 of the locking support 30 may be slid from the end of the guide rail 20 into the first slide groove 22 of the guide rail 20, and in the first slide groove 22 of the guide rail 20, limiting bolts 100 are respectively arranged on opposite sides of the boss structure 31 of the locking support 30, so that a sliding connection is formed between the guide rail 20 and the locking support 30, that is, slippage is allowed between the locking support 30 and the guide rail 20, thereby solving the problem of thermal expansion and contraction while limiting the excessive movement distance of the guide rail 20 in the first slide groove 22.

[0102] Optional, see Figure 5 The locking support 30 may include a support portion 32 and a base 33, wherein the boss structure 31 in the locking support 30 is disposed at one end of the support portion 32, and the base 33 is disposed at the other end of the support portion 32, wherein, with reference to Figure 6 The base 33 of the locking support 30 can be connected to the roof purlin 60 by self-tapping screws. At the same time, a heat insulation gasket can be arranged between the base 33 of the locking support 30 and the roof purlin 60, so that the thickness of the heat insulation gasket can be adjusted according to the actual installation needs, thereby ensuring that the locking support 30 is on a plane or a curved surface. Since the guide rail 20 and the locking support 30 under the roof panel 10 have been leveled, the flatness of the photovoltaic roof can be higher and the installation accuracy of the components can be higher.

[0103] Optionally, the cross section of the boss structure 31 in the edge locking support 30 may be a T-shaped structure, and correspondingly, the cross section of the first slide groove 22 in the guide rail 20 that matches the boss structure 31 may also be a T-shaped structure.

[0104] Optional, see Figure 3 The guide rail 20 may further include a second engaging protrusion 23. Figure 4 The side plate 12 of the roof panel 10 is provided with a corresponding snap-fit ​​structure 15 matching the second snap-fit ​​protrusion 23, referring to Figure 8 When the guide rail 20 is used to connect adjacent roof panels 10, that is, when the first bent portion 13 of the roof panel 10 is buckled on the first clamping protrusion 21 of the guide rail 20, and the second bent portion 14 of the adjacent roof panel 10 is buckled on the outside of the first bent portion 13, the clamping structure 15 of the roof panel 10 is clamped on the second clamping protrusion 23 of the guide rail 20.

[0105] In the embodiment of the present invention, the first bent portion 13 of the roof panel 10 is snapped onto the first clamping protrusion 21 of the guide rail 20, and the second bent portion 14 of the adjacent roof panel 10 is snapped onto the outside of the first bent portion 13. This connection method can limit the movement of the roof panel 10 at a high position of the side panel 12 of the roof panel 10, and the clamping structure 15 of the roof panel 10 is snapped onto the second clamping protrusion 23 of the guide rail 20. This connection method can limit the movement of the roof panel 10 at a low position of the side panel 12 of the roof panel 10. The combination of the two can enhance the wind resistance and load-bearing capacity of the roof panel.

[0106] Optional, see Figure 3The guide rail 20 may further include a core insertion cavity 24. Accordingly, the photovoltaic roof may include a core insertion structure, so that the core insertion structure is arranged in the core insertion cavity 24 of two adjacent guide rails 20 along the extension direction of the guide rail 20, thereby completing the connection between the two adjacent guide rails 20 and avoiding the situation where the roof cannot be completely covered due to the limited length of a single guide rail 20.

[0107] Optional, see Figure 4 The bent portion of the first bent portion 13 in the roof panel 10 may be provided with a groove structure 16 to prevent capillary action of rainwater.

[0108] Optional, see Figure 7 The connecting clamp 40 may include two independent divisions: a first division 43 and a second division 44, wherein the first division 43 and the second division 44 are both provided with a connecting body 45, and corresponding bolt holes 46 are provided on the connecting bodies 45 of the first division 43 and the second division 44, so that the first division 43 and the second division 44 can be clamped together by bolts passing through the bolt holes 46.

[0109] Furthermore, a connecting platform 41 is provided at one end of the connecting body 45 of the first division 43 or the second division 44, that is, a connecting platform 41 is provided at one end of the connecting body 45 of any one of the first division 43 and the second division 44, so as to be connected to the adapter 70, and then the photovoltaic component 50 with the hanging component 80 is hung, or, a connecting platform division is provided at one end of the connecting body 45 of the first division 43 and the second division 44, respectively, and both connecting platform divisions are connected to the adapter 70, and then the photovoltaic component 50 with the hanging component 80 is hung, that is, the connecting platform divisions in the first division 43 and the second division 44 together constitute the connecting platform 41 of the connecting clamp 40.

[0110] Correspondingly, the clamping structure 42 in the connecting clamp 40 may include a clamping structure 47 respectively arranged at the other end of the connecting body 45 of the first section 43 and the second section 44, so that when the first section 43 and the second section 44 are clamped with each other, the two clamping structures 47 located in the two sections clamp the second bending portions 14 of the adjacent roof panels 10.

[0111] It should be noted that, when the first section 43 and the second section 44 in the connecting clamp 40 are clamped together by bolts passing through the bolt holes 46, a snap-fit ​​structure can be provided in the first section 43 to support the second section 44, and the connection between the first section 43 and the second section 44 is achieved through the clamping force of the bolts and the supporting force between the snap-fit ​​structure.

[0112] In the embodiment of the present invention, the entire photovoltaic roof is a frameless component, so there is no dust accumulation problem, and the metal parts are all covered by the components, resulting in a better appearance.

[0113] In the embodiment of the present invention, the material of the roof panel 10 can be an aluminum-zinc-coated steel plate, a galvanized aluminum-magnesium-coated steel plate, a stainless steel plate or an aluminum alloy roof panel, etc.

[0114] In an embodiment of the present invention, the photovoltaic roof installation process may include the following steps:

[0115] (1) Install the roof purlin 60 onto the main steel structure of the roof;

[0116] (2) Install the roof baseboard;

[0117] (3) Laying thermal insulation cotton and waterproof breathable membrane;

[0118] (4) Slide the limiting bolt 100 and the boss structure 31 of the locking support 30 into the first sliding groove 22 of the guide rail 20, and fix the limiting bolt 100 at equal intervals, and then use the insert structure to insert the insert cavity 24 in the two adjacent guide rails 20 to connect the two adjacent guide rails 20;

[0119] (5) The guide rails 20 are fixed at equal intervals so that the interval between two adjacent parallel rails 20 is equal to the width of the roof panel.

[0120] Specifically, the locking support 30 can be first fixed at the eaves position of the roof, and then the locking support 30 can be fixed at the ridge position, and then the middle locking supports 30 can be fixed to the roof purlin 60 with self-tapping screws in turn. If there is a gap between the locking support 30 and the roof purlin 60, a heat insulation gasket can be used between the base 33 of the locking support 30 and the roof purlin 60, and the leveling can be adjusted by adjusting the number of layers of the heat insulation gasket;

[0121] (6) buckle the first bent portion 13 of the roof panel 10 onto the first clamping protrusion 21 of the guide rail 20, then buckle the second bent portion 14 of the adjacent roof panel 10 onto the first bent portion 13, and use a locking machine or locking pliers to lock the first bent portion 13 and the second bent portion 14 together;

[0122] (7) Determine the fixed position of the connection clamp 40 on the roof panel 10 according to the size of the photovoltaic module 50, and lock the connection clamp 40;

[0123] (8) Lock the adapter 70 onto the connecting fixture 40;

[0124] (9) sequentially connecting the hanging member 80 bonded and fixed to the back of the photovoltaic module 50 and the adapter 70;

[0125] (10) The photovoltaic module 50 is locked using the pressing block structure 90 and T-bolts to complete the installation of the photovoltaic module 50 and obtain a photovoltaic roof.

[0126] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0127] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A photovoltaic roof, characterized in that: The photovoltaic roof comprises: a roof panel, a guide rail, a locking support, a connecting fixture, a photovoltaic module and a roof purlin; The guide rail is arranged along a direction perpendicular to the extension direction of the roof purlin, a first clamping protrusion is arranged at one end of the guide rail close to the photovoltaic module, and a first slide groove is arranged at one end of the guide rail close to the roof purlin; The roof panel comprises a bottom panel and side panels arranged on opposite sides of the bottom panel and extending toward the photovoltaic module, wherein the side panels are respectively provided with a first bending portion and a second bending portion at one end away from the bottom panel, the first bending portion of the roof panel is buckled on the first clamping protrusion of the guide rail, and the second bending portion of the adjacent roof panel is buckled on the outside of the first bending portion; One end of the locking support is connected to the roof purlin, and the other end of the locking support is provided with a boss structure, and the boss structure of the locking support is arranged in the first slide groove of the guide rail to connect the locking support and the guide rail; One end of the connecting clamp is provided with a connecting platform connected to the photovoltaic component, and the other end of the connecting clamp is provided with a clamping structure, and the clamping structure clamps the second bending portion of the adjacent roof panel to restrict the first bending portion of the roof panel and the first clamping protrusion of the guide rail in the clamping structure to complete the installation of the photovoltaic component.

2. The photovoltaic roof according to claim 1, characterized in that: The photovoltaic roof also includes: an adapter, and a hanging member glued and fixed to the photovoltaic assembly on one side close to the roof purlin; A support platform is provided at one end of the hanging member close to the photovoltaic assembly, and a hanging platform is provided at one end of the hanging member away from the photovoltaic assembly, and the support platform of the hanging member is glued and fixed to the photovoltaic assembly; The adapter comprises a second slide groove and a hanging groove, and the hanging platform in the hanging member is arranged in the hanging groove of the adapter to realize the hanging of the hanging member and the adapter; The adapter is fixedly connected to the connecting platform of the connecting fixture via bolts arranged in the second sliding groove.

3. The photovoltaic roof according to claim 2, characterized in that: The hanging member includes a first hanging member fixed at a side position of the photovoltaic component and a second hanging member fixed at a middle position of the photovoltaic component, and the adapter includes a first adapter hung with the first hanging member and a second adapter hung with the second hanging member.

4. The photovoltaic roof according to claim 3, characterized in that: One end of the supporting platform in the first hanging member is provided with a component buckle, and the side edge of the photovoltaic component is arranged in the component buckle.

5. The photovoltaic roof according to claim 3, characterized in that: The first hanging member includes a first cavity structure, and a hanging platform in the first hanging member is arranged on a side of the first cavity structure close to the roof purlin.

6. The photovoltaic roof according to claim 5, characterized in that: The photovoltaic roof also includes a block structure; The pressing block structure includes a pressing body, a bolt hole arranged on the pressing body, and a pressing leg structure arranged on two opposite sides of the pressing body; The first hanging member also includes a pressing groove structure, and the first adapter also includes a third slide groove. The pressing block structure uses bolts arranged in the third slide groove and the bolt hole to crimp the leg structure of the pressing block structure in the pressing groove structure of the first hanging member connected to the two adjacent photovoltaic components. The first hanging member connected to the two adjacent photovoltaic components is crimped through the pressing block structure.

7. The photovoltaic roof according to claim 6, characterized in that: In the case where the photovoltaic module is an epitaxial photovoltaic module located outside the module array, the pressure leg structure in the pressure block structure includes a first pressure leg sub-section and a second pressure leg sub-section arranged on opposite sides of the pressure connection body; The first press leg section is press-connected in the press groove structure of the first hanging component, and the second press leg section is press-connected on the first adapter.

8. The photovoltaic roof according to claim 3, characterized in that: The first hanging member is arranged at a short side of the photovoltaic component.

9. The photovoltaic roof according to claim 3, characterized in that: The second hanging member includes a second cavity structure, and the hanging platform in the second hanging member includes a first hanging platform section and a second hanging platform section, and the first hanging platform section and the second hanging platform section are arranged on a side of the second cavity structure close to the roof purlin; The hanging groove in the second adapter includes a first hanging groove section and a second hanging groove section, the first hanging platform section is arranged in the first hanging groove section, and the second hanging platform section is arranged in the second hanging groove section, so as to realize the hanging of the first hanging member and the first adapter.

10. The photovoltaic roof according to any one of claims 1 to 9, characterized in that: The photovoltaic roof also includes a limit bolt; In the first slide groove of the guide rail, the limiting bolts are respectively arranged on opposite sides of the boss structure of the edge locking support.

11. The photovoltaic roof according to any one of claims 1 to 9, characterized in that: The edge locking support comprises a support portion and a base, wherein the boss structure is arranged at one end of the support portion, and the base is arranged at the other end of the support portion; The base of the locking support is connected to the roof purlin through self-tapping screws; A heat insulating gasket is arranged between the base and the roof purlin.

12. The photovoltaic roof according to any one of claims 1 to 9, characterized in that: The guide rail further includes a second clamping protrusion, and a clamping structure matching the second clamping protrusion is provided on the side plate of the roof panel; The first bent portion of the roof panel is buckled on the first clamping protrusion of the guide rail, and the second bent portion of the adjacent roof panel is buckled on the outside of the first bent portion, and the clamping structure of the roof panel is clamped on the second clamping protrusion of the guide rail.

13. The photovoltaic roof according to any one of claims 1 to 8, characterized in that: The guide rail also includes a core insertion cavity, and the photovoltaic roof includes a core insertion structure; The insert core structure is arranged in the insert core cavities of two adjacent guide rails along the extension direction of the guide rails.

14. The photovoltaic roof according to any one of claims 1 to 9, characterized in that: The bending portion of the first bending part is provided with a groove structure.

15. The photovoltaic roof according to any one of claims 1 to 9, characterized in that: The connecting fixture comprises a first section and a second section, wherein the first section and the second section are both provided with a connecting body; The connecting bodies of the first sub-part and the second sub-part are both provided with corresponding bolt holes, and the first sub-part and the second sub-part are clamped to each other by bolts passing through the bolt holes; The connection platform is disposed at one end of the connection body of the first sub-part or the second sub-part, or the connection platform sub-parts are disposed at one end of the connection bodies of the first sub-part and the second sub-part, respectively, and the two connection platform sub-parts are connected to the photovoltaic module; The clamping structure includes clamping head structures respectively arranged at the other end of the connecting body of the first section and the second section. When the first section and the second section are clamped to each other, the two clamping head structures clamp the second bending parts of the adjacent roof panels.

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