CN215978090U

CN215978090U - Photovoltaic roof

Info

Publication number: CN215978090U
Application number: CN202121976707.8U
Authority: CN
Inventors: 王申存; 张松
Original assignee: Xian Longi Green Energy Architecture Technology Co Ltd
Current assignee: Longi Solar Technology Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-08
Anticipated expiration: 2031-08-20

Abstract

The utility model provides a photovoltaic roof, and relates to the technical field of photovoltaic building integration. Photovoltaic roof includes: the roof plate, the guide rail, the photovoltaic module, the fixed support and the roof purlin, wherein one side, close to the roof purlin, of the guide rail main body is connected with the roof purlin through the fixed support, and the photovoltaic module is fixedly connected with a guide rail platform of the guide rail. Because first buckling parts lock in the guide rail is on the first kink of roof boarding, second buckling parts lock is on the second kink of adjacent roof boarding to can connect two adjacent roof boarding through the guide rail, and fix guide rail and two adjacent roof boarding, need not to use anti-wind to press from both sides and can accomplish photovoltaic module's installation, thereby can ensure that the photovoltaic roof has high anti-wind and takes off and bearing capacity, avoid the roof boarding to receive external force to destroy. Simultaneously, because the guide rail is connected through the mode of lock between the roof boarding to produce stress concentration and lead to the roof boarding to be destroyed when can avoiding the roofing atress, improved the security on photovoltaic roof.

Description

Photovoltaic roof

Technical Field

The utility model relates to the technical field of building integration, in particular to a photovoltaic roof.

Background

The solar Photovoltaic power generation technology becomes a main direction for developing and utilizing new energy, wherein Building Integrated Photovoltaic (BIPV) is a novel Photovoltaic application mode combining a Photovoltaic module and a Building, and has a wide market prospect.

At present, in an existing installation method of the BIPV, adjacent roof panels are mainly connected through wind-resistant clamps, guide rails are fixed on lockstitching ribs of the adjacent roof panels through the wind-resistant clamps, and then photovoltaic modules are installed on the guide rails. The installation mode can transmit wind suction force received by the photovoltaic assembly and snow load in heavy snow weather to the lockage rib of the metal roof panel through the guide rail and the wind-resistant clamp, so that stress concentration on the metal roof panel is generated at the installation position of the wind-resistant clamp, and the wind uncovering resistance of the metal roof panel is poor. Simultaneously, metal roof boarding is connected through the metal support with being located the roofing purlin that metal roof boarding below is used for the bearing, and the mounted position that anti-wind pressed from both sides needs to correspond with the position of metal support, just can reduce the influence that anti-wind pressed from both sides and lead to the stress concentration of metal roof boarding.

However, in the prior art, after the metal roof panel is installed, the position of the metal support cannot be seen, so that the installation position of the wind-resistant clip deviates from the position of the metal support, and under the condition of wind suction force or load, concentrated load on the wind-resistant clip can be directly loaded on a weak metal roof panel, so that the metal roof panel is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides a photovoltaic roof, and aims to solve the problems that the wind uncovering resistance and the bearing capacity of the photovoltaic roof are poor and a roof panel is easy to damage in the integration of a photovoltaic building.

An embodiment of the present invention provides a photovoltaic roof, including:

the roof plate, the guide rail, the photovoltaic assembly, the fixed support and the roof purline;

the roof panel comprises a bottom plate and side plates arranged on two opposite sides of the bottom plate and extending towards the photovoltaic assembly, and a first bending part and a second bending part are respectively arranged at one end of each side plate far away from the bottom plate;

the guide rail is arranged along the whole length in the extending direction perpendicular to the roof purline, the guide rail comprises a guide rail main body, a guide rail platform arranged on one side, close to the photovoltaic assembly, of the guide rail main body, and a first buckling part and a second buckling part which are arranged on two opposite sides of the guide rail platform, the first buckling part is buckled on a first bending part of the roof panel, and the second buckling part is buckled on a second bending part of the adjacent roof panel, so that the two adjacent roof panels are connected through the guide rail;

one side of the guide rail main body, which is close to the roof purlin, is connected with the roof purlin through the fixed support, and the photovoltaic assembly is fixedly connected with the guide rail platform of the guide rail to complete the installation of the photovoltaic assembly.

Optionally, the first fastening portion comprises a first support section and a first fastening section, and the second fastening portion comprises a second support section and a second fastening section;

one ends of the first support section and the second support section are respectively connected with the guide rail main body, and the other ends of the first support section and the second support section are respectively connected with the first buckling section and the second buckling section;

the first and second buckling subsections bend towards the guide rail main body, and the bending directions of the first and second buckling subsections deviate from the central axis of the guide rail main body.

Optionally, the first bending portion and the second bending portion are bent toward the bottom plate, and the bending directions of the first bending portion and the second bending portion are deviated from the central axis of the bottom plate;

the inner surface profile of the first buckling subsection is matched with the outer surface profile of the first bending part, and the first buckling subsection is buckled on the first bending part of the roof panel; the inner surface profile of the second buckling subsection is matched with the outer surface profile of the second bending part, and the second buckling subsection is buckled on the second bending part of the roof panel.

Optionally, the bending portions of the first bending portion and the second bending portion are provided with groove structures.

Optionally, the guide rail further includes a first sliding groove disposed on one side of the guide rail main body close to the roof purlin;

one end of the fixed support is connected with the guide rail through a bolt arranged in the first sliding groove, and the other end of the fixed support is connected with the roof purline, so that the guide rail is connected with the roof purline.

Optionally, the bolt head portion of the bolt comprises a first bolt head subsection and a second bolt head subsection, the first bolt head subsection and the second bolt head subsection are parallel to each other, and a groove with a preset width is arranged between the first bolt head subsection and the second bolt head subsection;

the first bolt head is arranged inside the first sliding groove of the guide rail, and the second bolt head is arranged outside the first sliding groove of the guide rail, so that one end of the fixed support is in sliding connection with the guide rail.

Optionally, the fixed support includes a first subsection and a second subsection that are connected perpendicularly to each other, the first subsection is fixedly connected with the roof purlin, the second subsection is connected with the guide rail, and a connection position of the second subsection and the guide rail is located on a central axis of the guide rail main body.

Optionally, the photovoltaic module is adhesively connected to the rail platform of the guide rail.

Optionally, the roof panel further includes protruding structures disposed on two opposite sides of the bottom plate, and the side plates are disposed on one side of the protruding structures away from the central axis of the bottom plate;

the guide rail main body further comprises a boss structure, and the first buckling part and the second buckling part are arranged on one side, close to the photovoltaic assembly, of the boss structure;

the contour of the boss structure of the guide rail main body is matched with the contour of the protruding structure of the roof panel so as to support the roof panel.

Optionally, the rail platform comprises a first platform section and a second platform section, and the rail further comprises a second runner disposed between the first platform section and the second platform section;

the photovoltaic roof further comprises a T-shaped bolt and a photovoltaic pressing block, and the photovoltaic pressing block presses the photovoltaic assembly on the first platform subsection and the second platform subsection through the T-shaped bolt.

Optionally, the long side or the short side of the photovoltaic module is fixedly connected with the guide rail platform of the guide rail.

In the embodiment of the utility model, the first buckling parts in the guide rails are buckled on the first bending parts of the roof panels, and the second buckling parts in the guide rails are buckled on the second bending parts of the adjacent roof panels, so that the two adjacent roof panels can be connected through the guide rails, the guide rails and the two adjacent roof panels are fixed, and the photovoltaic assembly can be installed without using wind-resistant clamps, so that the photovoltaic roof can be ensured to have high wind uncovering resistance and bearing capacity, and the roof panels are prevented from being damaged by external force. Simultaneously, because the guide rail is connected through the mode of lock between the roof boarding to produce stress concentration and lead to the roof boarding to be destroyed when can avoiding the roofing atress, improved the security on photovoltaic roof.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 shows a schematic structural view of a photovoltaic roof in an embodiment of the utility model;

fig. 2 shows a schematic structural view of a roof panel in an embodiment of the utility model;

FIG. 3 shows a schematic view of a rail and roofing purlin connection in an embodiment of the utility model;

FIG. 4 shows a schematic structural view of a guide rail in an embodiment of the utility model;

fig. 5 shows a partial structural schematic view of a photovoltaic roof in an embodiment of the utility model;

fig. 6 shows a schematic view of an installation process of a roof plate and a guide rail in an embodiment of the utility model;

FIG. 7 shows a schematic structural view of a bolt in an embodiment of the utility model;

fig. 8 shows a schematic perspective view of a photovoltaic roof according to an embodiment of the utility model;

figure 9 shows a partial schematic structural view of another photovoltaic roof in an embodiment of the utility model;

fig. 10 shows a partial structural schematic view of a further photovoltaic roof in an embodiment of the utility model;

fig. 11 shows a partial structural schematic view of yet another photovoltaic roof in an embodiment of the utility model;

FIG. 12 shows a schematic view of another guide rail in an embodiment of the utility model;

figure 13 shows a schematic structural view of another photovoltaic roof in an embodiment of the utility model;

fig. 14 shows a schematic view of an installation of a roof plate in an embodiment of the utility model;

FIG. 15 shows a schematic view of an installation of a photovoltaic module in an embodiment of the present invention;

fig. 16 shows a schematic view of another photovoltaic module installation in an embodiment of the present invention.

Description of reference numerals:

10-roof boarding, 11-floor boarding, 12-side boarding, 13-first bend section, 14-second bend section, 15-bulge structure, 16-groove structure, 20-guide rail, 21-guide rail body, 22-guide rail platform, 221-first platform section, 222-second platform section, 23-first buckle section, 231-first support section, 232-first buckle section, 24-second buckle section, 241-second support section, 242-second buckle section, 25-first runner, 26-boss structure, 27-second runner, 28-cavity, 30-photovoltaic module, 40-fixed support, 41-first section, 42-second section, 50-roof purlin, 60-bolt, 61-first bolt head section, 62-second bolt head section, 63-groove, 70-self-tapping screw, 80-construction glue.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

With the large-scale installation of photovoltaic power stations, ground photovoltaic land is less and less, and install photovoltaic module on building, can provide the place for photovoltaic power generation on the one hand, on the other hand also brings new selection and element for the building. The number of roofs suitable for mounting the photovoltaic modules is large, but the large-span metal roof is more suitable for application of the photovoltaic modules in batch production. BIPV is a technology for integrating a solar power generation assembly (photovoltaic assembly) into a building, and the photovoltaic assembly and a roof panel on the outer surface of the building can be combined together in a gluing mode and the like, so that the building has photovoltaic power generation capacity.

In the BIPV technology, the materials used for the large-span metal roof mainly comprise an aluminum-zinc plated steel plate, a stainless steel plate, an aluminum alloy plate and the like, common roofs comprise roofs of industrial factory buildings, and roofs of public buildings such as airports, railway stations, gymnasiums, convention and exhibition centers and the like. These roofs are characterized by a large floor space, often several tens of meters in height. Due to the characteristics of the roof, the roof is easily affected by strong wind to cause wind uncovering damage, so the wind uncovering resistance of the roof is a problem to be solved in important places for the large-span metal roofs. Similarly, if a photovoltaic system is installed on the large-span metal roof, the influence on the wind uncovering resistance of the metal roof after the photovoltaic system is installed needs to be considered in an important way.

The existing method for installing the photovoltaic module on the metal roof mainly comprises the steps of installing a guide rail bracket on a lock edge rib of the metal roof by using a wind-resistant clamp, and then installing the photovoltaic module on a guide rail fixed by using the guide rail bracket. Further, through metal support fixed mounting between the roofing purlin that metal roofing and roofing below were weighed, consequently, it is corresponding with metal support's position to ensure the mounted position that the anti-wind pressed from both sides, just can reduce the injury to the stress concentration of metal roofing.

Therefore, the existing method for installing the photovoltaic module on the metal roof can generate three problems, firstly, after the metal roof is installed, the position of the metal support cannot be seen above the metal roof, so that the installation position of the wind-resistant clamp is difficult to find, and the wind-resistant clamp is installed at a position deviated from the metal support, so that under the condition of receiving wind suction force or load, concentrated load on the wind-resistant clamp can be directly loaded on a weak metal roof plate, and the metal roof plate is damaged. Secondly, because the interval of metal support is the interval phase-match with the roofing purlin, after the anti-wind clamp was installed at the position that the metal support corresponds, the interval of guide rail will be unanimous with the interval of roofing purlin to lead to the installation photovoltaic module the mounting point on the guide rail optimum stress point position for photovoltaic module not, this bearing capacity that can reduce photovoltaic module. The use of double layer rails is required to solve this problem and increases the cost of the system and the weight bearing of the roofing system. Third, because the anti-wind presss from both sides to rely on static friction fixed, for guaranteeing that the installation is reliable, it accompanies very big clamp force with just needing anti-wind, too big clamp force can make between the metal roofing and the metal support of clamping position closely combine, because metal roofing expend with heat and contract with cold deformation is bigger, it has certain clearance to ensure generally between metal roofing and the metal support, just can guarantee can sliding relatively between metal roofing and the metal support, thereby release expend with heat and contract with cold's stress, if anti-wind presss from both sides to press from both sides metal roofing and metal support and tightly leads to the relative metal support of metal roofing can not slide, long-time use will greatly reduced metal roofing's life.

Referring to fig. 1, fig. 1 shows a schematic structural view of a photovoltaic roof, which may include roof panels 10, guide rails 20, photovoltaic modules 30, anchor supports 40, and roof purlins 50, according to an embodiment of the present invention.

Fig. 2 shows a schematic structural view of a roof panel in an embodiment of the present invention, and referring to fig. 2, a roof panel 10 includes a bottom plate 11 and side plates 12 disposed on two opposite sides of the bottom plate 11 and extending toward a photovoltaic module 30, and meanwhile, one ends of the side plates 12 far away from the bottom plate 11 are respectively provided with a first bending portion 13 and a second bending portion 14.

Further, fig. 3 shows a schematic connection diagram of the guide rail and the roofing purlin in the embodiment of the present invention, referring to fig. 3, the guide rail 20 is arranged along a length perpendicular to an extending direction of the roofing purlin 50, and the guide rail 20 and the roofing purlin 50 are connected to each other through the fixing support 40.

Fig. 4 shows a schematic structural diagram of a guide rail in an embodiment of the present invention, referring to fig. 4, the guide rail 20 includes a guide rail main body 21, a guide rail platform 22 disposed on one side of the guide rail main body 21 close to the photovoltaic module 30, and a first buckling portion 23 and a second buckling portion 24 disposed on opposite sides of the guide rail platform 22, and fig. 5 shows a schematic partial structural diagram of a photovoltaic roof in an embodiment of the present invention, referring to fig. 5, the guide rail 20 is used to connect two adjacent roof panels 10, the first buckling portion 23 in the guide rail 20 is buckled on the first bending portion 13 of the roof panel 10, and the second buckling portion 24 in the guide rail 20 is buckled on the second bending portion 14 of the adjacent roof panel 10, thereby connecting the two adjacent roof panels 10.

Further, referring to fig. 5, one side of the guide rail main body 21 of the guide rail 20 close to the roof purlin 50 is connected with the roof purlin 50 through the fixing support 40, and the photovoltaic module 30 is fixedly connected with the guide rail platform 22 of the guide rail 20, so that the photovoltaic module 30 is installed.

In the embodiment of the utility model, the first buckling part and the second buckling part in the guide rail are buckled and connected with the first bending part and the second bending part in two adjacent roof panels, so that the connection mode between the roof panels and the guide rail is a uniform stress meshing mode, and no stress concentration point exists at the connection position of the guide rail and the roof panels, thereby ensuring that the roof panels cannot be damaged due to stress concentration caused by wind absorption, wind pressure or snow load under the condition that the photovoltaic roof bears wind absorption and wind pressure or snow load.

In addition, when the guide rail in the photovoltaic roof is connected with adjacent roof boards, one side of the guide rail main body, which is close to the roof purline, is connected with the roof purline through the fixed support, and the other side of the guide rail main body is fixedly connected with the photovoltaic assembly through the guide rail platform, so that the whole photovoltaic assembly is installed; meanwhile, the mounting position of the photovoltaic module on the guide rail can be ensured to be the optimal stress point position of the photovoltaic module, and the photovoltaic module can be ensured to have certain bearing capacity without using a double-layer guide rail.

Fig. 6 shows a schematic view of an installation process of a roof panel and a guide rail in an embodiment of the present invention, and referring to fig. 6, the installation process of the roof panel and the guide rail in a photovoltaic roof may include the following steps:

(1) referring to fig. 6, part (a), the guide rail 20 is fixed to the roof purlin 50 by the fixing bracket 40. At this time, the first engaging portion 23 and the second engaging portion 24 of the guide rail 20 are in an unengaged state.

(2) Referring to fig. 6 (b), second bent portion 14 of roof panel 10 located on the right side of guide rail 20 is inserted into second engaging portion 24 of guide rail 20, and roof panel 10 is laid flat.

(3) Referring to fig. 6 (c), first bent portion 13 of roof panel 10 located on the left side of guide rail 20 is inserted into first engaging portion 23 of guide rail 20, and roof panel 10 is laid flat.

(4) Referring to fig. 6 (d), the first fastening portion 23 and the second fastening portion 24 in the guide rail 20 in the non-fastened state are locked and fastened with the first bent portion 13 located in the first fastening portion 23 and the second bent portion 14 located in the second fastening portion 24 by using an edge locking machine, so that the two adjacent roof panels 10 are connected.

(5) Referring to fig. 6 (e), the second bent portion 14 of the roof panel 10 on the left side of the guide rail 20 may be provided in the next guide rail 20, specifically, the second bent portion 14 of the roof panel 10 is fastened to the second fastening portion 24 of the next guide rail 20, and after the transverse position is determined, the next guide rail 20 is fixed to the roof purlin 50 by the fixing bracket 40. The fixed support 40 can also be preassembled onto the next rail 20, thus saving the installation step;

(6) and (5) repeating the steps (3) to (5) until all the roof panels 10 in the photovoltaic roof are connected through the guide rails 10.

In an embodiment of the present invention, a photovoltaic roof comprises: the roof plate, the guide rail, the photovoltaic assembly, the fixed support and the roof purline; the roof panel comprises a bottom plate and side plates arranged on two opposite sides of the bottom plate and extending towards the photovoltaic assembly, and a first bending part and a second bending part are respectively arranged at one ends of the side plates far away from the bottom plate; the guide rail is arranged along the whole length in the extending direction perpendicular to the roof purlines and comprises a guide rail main body, a guide rail platform arranged on one side, close to the photovoltaic assembly, of the guide rail main body, and a first buckling part and a second buckling part which are arranged on two opposite sides of the guide rail platform, wherein the first buckling part is buckled on a first bending part of each roof panel, and the second buckling part is buckled on a second bending part of each adjacent roof panel so as to connect the two adjacent roof panels through the guide rail; one side that the guide rail main part is close to the roofing purlin is passed through fixing support and is connected with the roofing purlin, photovoltaic module and the guide rail platform fixed connection of guide rail, accomplish photovoltaic module's installation, in this embodiment, because first buckling parts lock in the guide rail is on the first kink of roof boarding, second buckling parts lock in the guide rail is on the second kink of adjacent roof boarding, thereby can connect two adjacent roof boarding through the guide rail, and fix guide rail and two adjacent roof boarding, need not to use the anti-wind to press from both sides and can accomplish photovoltaic module's installation, thereby can ensure that the photovoltaic roof has high anti-wind and takes off and bearing capacity, avoid the roof boarding to receive external force to destroy. Simultaneously, because the guide rail is connected through the mode of lock between the roof boarding to produce stress concentration and lead to the roof boarding to be destroyed when can avoiding the roofing atress, improved the security on photovoltaic roof.

Alternatively, referring to fig. 4, the first fastening part 23 in the guide rail 20 may include a first support part 231 and a first fastening part 232, and the second fastening part 24 in the guide rail 20 may include a second support part 241 and a second fastening part 242, wherein one end of the first support part 231 and the second support part 241 are respectively connected with the guide rail main body 21, the other end of the first support part 231 and the second support part 241 are respectively connected with the first fastening part 232 and the second fastening part 242, and the first fastening part 232 and the second fastening part 242 are bent toward the guide rail main body 21, the bending direction of the first fastening part 232 and the second fastening part 242 is deviated from the central axis of the guide rail main body 21, so that the first fastening part 232 and the second fastening part 242 for fastening with the first bending part 13 and the second bending part 14 in the roof panel 10 in the guide rail 20 are of a downward bent structure, and this bending structure is towards the direction opening that deviates from guide rail main part 21 axis to ensure that guide rail 20 can carry out the lock through the mode of 360 degrees buckle limit interlocks with roof boarding 10, ensure the reliability of being connected between guide rail 20 and the roof boarding 10, can also have waterproof characteristic simultaneously, make the photovoltaic roof have good waterproof function. In addition, because the guide rails 20 are of a through-long structure, after the roof panels 10 and the guide rails 20 are connected in a buckling mode, the roof panels 10 can slide relative to each other, and therefore the roof panels 10 can be prevented from being damaged due to expansion caused by heat and contraction caused by cold.

Optionally, referring to fig. 2, the first bent portion 13 and the second bent portion 14 in the roof panel 10 are bent toward the bottom plate 11, and the bending directions of the first bent portion 13 and the second bent portion 14 are deviated from the central axis of the bottom plate 10, so that the roof panel 10 is in a bilateral symmetry structure. Meanwhile, the inner surface profile of the first buckling subsection 232 of the guide rail 20 and the outer surface profile of the first bent part 13 of the roof panel 10 are matched with each other, so that the first buckling subsection 232 of the guide rail 20 can be tightly buckled on the first bent part 13 of the roof panel 10; the inner surface profile of the second fastening subsection 242 of the guide rail 20 and the outer surface profile of the second bent portion 14 of the roof panel 10 are matched with each other, so that the second fastening subsection 242 of the guide rail 20 can be tightly fastened on the second bent portion 14 of the roof panel 10, and a 360-degree fastening edge engagement connection mode as shown in fig. 5 can be formed.

It should be noted that, the thickness of the first fastening portion 232 and the second fastening portion 242 in the guide rail 20 may be adjusted according to the wind uncovering resistance requirement of the photovoltaic roof, for example, if the environment where the photovoltaic roof is located is stronger than the wind uncovering resistance, the thickness of the first fastening portion 232 and the second fastening portion 242 in the guide rail 20 may be increased, so that the first fastening portion 232 and the second fastening portion 242 in the guide rail 20 have sufficient rigidity, and sufficient connection reliability between the guide rail 20 and the roof panel 10 is ensured, so as to ensure that the first fastening portion 232 and the second fastening portion 242 in the guide rail 20 can completely grip the roof panel 10 without wind uncovering under the action of strong wind uncovering resistance of the roof panel, thereby greatly improving the wind uncovering resistance of the entire photovoltaic roof. Due to the good wind uncovering resistance, when the first bending part 13 and the second bending part 14 are used as the serging structure of the roof panel 10, the serging structure does not need a metal support of a traditional photovoltaic roof to provide a direct supporting function, and does not need a hook for enhancing the wind uncovering resistance on the metal support.

Alternatively, referring to fig. 2, the bent portions of the first 13 and second 14 bend of the roof panel 10 are provided with groove structures 16 for preventing capillary action.

Optionally, referring to fig. 4, the guide rail 20 may further include a first sliding groove 20 disposed on one side of the guide rail main body 21 close to the roofing purlin 50, referring to fig. 5, so that one end of the fixing support 40 and the guide rail 20 may be connected to each other through a bolt 60 disposed in the first sliding groove 25, wherein the other end of the fixing support 40 may be connected to the roofing purlin 50 through a self-tapping screw 70, thereby realizing connection between the guide rail 20 and the roofing purlin 50.

In the embodiment of the present invention, the bolt 60 provided in the first sliding groove 25 for connecting the fixing bracket 40 and the guide rail 20 may be a T-bolt, so that the fixing bracket 40 and the guide rail 20 are fixedly connected.

Alternatively, fig. 7 shows a structural schematic view of a bolt according to an embodiment of the present invention, referring to fig. 7, the bolt 60 may be a stepped bolt with a groove, which is different from a conventional T-shaped bolt, and as shown in fig. 7, the bolt head portion of the bolt 60 includes a first bolt head portion 61 and a second bolt head portion 62, wherein the first bolt head portion 61 and the second bolt head portion 62 are parallel to each other, and a groove 63 with a preset width is disposed between the first bolt head portion 61 and the second bolt head portion 62.

Fig. 8 is a perspective view of a photovoltaic roof according to an embodiment of the present invention, and referring to fig. 8, a first bolt head portion 61 is disposed inside the first sliding groove 25 of the rail 20, and a second bolt head portion 62 is disposed outside the first sliding groove 25 of the rail 20, so as to enable a sliding connection between one end of the fixing support 40 and the rail 20.

Specifically, the first bolt head part 61 and the second bolt head part 62 which are parallel to each other are integrally formed, and the groove 63 can be formed by machining, so that the ordinary bolt can be made into a stepped bolt with the groove 63. When the fixing support 40 and the guide rail 20 are connected by the bolt 60, the first bolt head portion 61 of the bolt 60 can be slid into the first sliding groove 25 of the guide rail 20, and then the fixing support 40 is fixed on the bolt 60, and since the bolt 60 and the first sliding groove 25 of the guide rail 20 have a certain gap due to the groove 63, the guide rail 20 and the fixing support 40 can slide relatively, so that deformation caused by expansion with heat and contraction with cold can be absorbed.

Alternatively, fig. 9 shows a partial structure schematic diagram of another photovoltaic roof in an embodiment of the present invention, fig. 10 shows a partial structure schematic diagram of another photovoltaic roof in an embodiment of the present invention, and referring to fig. 9 and 10, the fixing bracket 40 may include a first section 41 and a second section 42 that are vertically connected to each other, wherein the first section 41 is fixedly connected to the roof purlin 50 by a self-tapping nail 70, the second section 42 is connected to the guide rail 20 by a bolt 60, the fixing bracket 40 in fig. 9 has an L-shaped structure, and the fixing bracket 40 in fig. 10 has a T-shaped structure.

Fig. 11 is a partial structural view of a photovoltaic roof according to another embodiment of the present invention, and referring to fig. 11, the connection position of the second section 42 and the rail 20 is located on the central axis of the rail body 21. I.e. the connection point of the fixing support 40 to the rail 20 is located in the middle of the rail 20, so that better structural stability of the photovoltaic roof can be ensured.

In the embodiment of the present invention, the specific structure of the guide rail 20 may be determined according to actual requirements, and referring to fig. 4, 9 and 11, the guide rail 20 has different structures. The guide rail 20 of fig. 4 may further include a cavity 28, so that the structural strength of the guide rail 20 may be enhanced. The guide rail 20 shown in fig. 9 and 11 has a simpler structure and is not provided with a cavity structure, so that the material consumption of the guide rail 20 can be reduced, and the cost can be reduced.

It should be noted that in the existing solutions, the photovoltaic module can be fixed by directly adhering the photovoltaic module to the roof panel with the structural adhesive, but this requires good adhesion between the structural adhesive and the roof panel. However, the roof panel surface usually has a high polymer material protective layer, such as fingerprint resistant film of an aluminum-zinc plated steel plate, an aluminum alloy color-coated plate, and a paint layer on the surface of a steel plate color-coated plate, the presence of these high polymer layers seriously affects the adhesion force of the structural adhesive and the roof panel, and there is a risk of adhesive failure, although the structural adhesive capable of being adhered can be screened through a large amount of tests, a large amount of time and effort are required to deal with the selectivity problem of the structural adhesive.

Alternatively, the photovoltaic module 30 may be adhesively connected to the rail platform 22 of the rail 20, and referring to fig. 5, the rail platform 22 of the rail 20 may be adhesively connected to the photovoltaic module 30 by providing a structural adhesive 80 on the rail platform 22. And the surface of the guide rail 20 can be subjected to anodic oxidation treatment, so that no high-molecular anticorrosive material is arranged on the surface of the guide rail 20, good adhesion can be established between the guide rail platform 22 of the guide rail 20 and the structural adhesive 80, and the reliability of the photovoltaic roof is higher. At the same time, because structural adhesive 80 is disposed on the surface of rail 20, rather than on the surface of roof panel 10, the problem of selectivity to structural adhesive 80 may also be avoided.

In addition, the guide rail 20 is glued 80 and carries out adhesive connection's mode with photovoltaic module 30 through setting up the structure on guide rail platform 22 for photovoltaic module 30's atress is more even, has avoided stress concentration, has strengthened photovoltaic module's bearing capacity.

Optionally, referring to fig. 2, the roof panel 10 may further include protruding structures 15 disposed on two opposite sides of the bottom panel 11, and the side panels 12 are disposed on one side of the protruding structures 15 away from the central axis of the bottom panel 11; referring to fig. 4, guide rail main body 21 further includes a boss structure 26, and first buckling part 23 and second buckling part 24 are provided on one side of boss structure 26 close to photovoltaic module 30, and when adjacent roof boarding 10 is connected by guide rail 20, referring to fig. 5, the contour of boss structure 26 of guide rail main body 21 matches with the contour of protruding structure 15 of roof boarding 10, so that roof boarding 10 can be supported, and the occurrence of tatting when roof boarding 10 bears a forward load is prevented.

Alternatively, fig. 12 shows a schematic view of another track in an embodiment of the utility model, and referring to fig. 12, the track platform 22 in the track 20 may include a first platform section 221 and a second platform section 222, and the track 20 further includes a second runner 27 disposed between the first platform section 221 and the second platform section 222. Referring to fig. 5, the rail platform 22 of the rail 20 may be of an integrated structure.

Fig. 13 shows a schematic structural view of another photovoltaic roof according to an embodiment of the present invention, and referring to fig. 13, since the rail platform 22 of the rail 20 is divided into the first platform subsection 221 and the second platform subsection 222 by the second runner 27, when the photovoltaic module 30 is fixed on the rail 20, the structural adhesive 80 may be respectively disposed on the surfaces of the first platform subsection 221 and the second platform subsection 222 to bond the photovoltaic module 30. Meanwhile, the photovoltaic roof may further include a T-bolt and a photovoltaic block (not shown in the figure), so that while the guide rail 20 and the photovoltaic module 30 are bonded and fixed, the photovoltaic block may be utilized to crimp the photovoltaic module 30 onto the first platform subsection 221 and the second platform subsection 222 of the guide rail 20 through the T-bolt, that is, through a manner of bonding and fixing the bolt block, the risk that the photovoltaic module 30 falls off due to failure of the structural adhesive 80 is avoided.

In addition, in the area with low requirements, the guide rail 20 and the photovoltaic module 30 can be fixed by only adopting a T-shaped bolt and a photovoltaic pressing block instead of the structural adhesive 80.

Optionally, when the photovoltaic module 30 is mounted on the rail 20, the long side or the short side of the photovoltaic module 30 may be fixedly connected to the rail platform 22 of the rail 20. Fig. 14 shows a schematic view of the installation of a roof panel according to an embodiment of the utility model, and with reference to fig. 3, after the guide rail 20 has been mounted on the roofing purlin 50 by means of the fixing supports 40, the roof panel 10 can be further fixed by means of the guide rail 20, with reference to fig. 14. Fig. 15 shows an installation schematic diagram of a photovoltaic module in an embodiment of the present invention, and referring to fig. 15, a long side of the photovoltaic module 30 may be fixedly connected to the rail platform 22 of the rail 20, that is, the long side of the photovoltaic module 30 is parallel to the extending direction of the rail 30, so that the photovoltaic module 30 is uniformly stressed and has a stronger bearing capacity. In addition, fig. 16 shows an installation schematic diagram of another photovoltaic module in the embodiment of the present invention, and referring to fig. 16, a short side of the photovoltaic module 30 may also be fixedly connected with the rail platform 22 of the rail 20, that is, a long side of the photovoltaic module 30 is perpendicular to the extending direction of the rail 30.

In the embodiment of the utility model, the roof panel can be made of aluminum-zinc-plated steel plate, zinc-aluminum-magnesium-plated steel plate, color-coated steel plate, stainless steel plate, aluminum alloy plate or aluminum-magnesium-manganese plate, and if aluminum-zinc-plated plate is used, the insulation of the contact position is needed. In addition, if the slope of the roof is long and a single guide rail does not cover the roof sufficiently, the adjacent guide rails can be connected by using the inserting core, and the joint seams of the adjacent guide rails need to be subjected to sealing and waterproof treatment; the adjacent guide rails can also be connected in a welding mode, and meanwhile, a waterproof aluminum film is used for sealing and waterproofing.

In the embodiment of the utility model, the guide rail can be made of 5-series or 6-series reinforced aluminum alloy materials, and the surface can be subjected to anodic oxidation treatment. The color of the guide rail can be matched according to the requirement, such as silver white, gray, black, red, green, blue and the like. For example, 6-series heat treatment reinforced aluminum alloy can be selected as the material of the guide rail, the strength can reach 275 MPa, the elongation can reach 8 percent, the elongation is more than 4 percent of an aluminum alloy roof panel, the aluminum alloy material is allowed to be locked with the roof panel, and the bearing capacity and the wind uncovering resistance of the photovoltaic roof are enhanced by the high-strength aluminum alloy material.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A photovoltaic roof, comprising: the roof plate, the guide rail, the photovoltaic assembly, the fixed support and the roof purline;

2. The photovoltaic roof of claim 1, wherein the first snap fit portion comprises a first support section and a first snap fit section, and the second snap fit portion comprises a second support section and a second snap fit section;

3. Photovoltaic roof according to claim 2,

the first bending part and the second bending part are bent towards the bottom plate, and the bending directions of the first bending part and the second bending part are deviated from the central axis of the bottom plate;

4. The photovoltaic roof according to claim 1, wherein the bent portions of the first and second bent portions are provided with groove structures.

5. The photovoltaic roof of any one of claims 1 to 4, wherein the rail further comprises a first runner disposed on a side of the rail body adjacent the roofing purlin;

6. The photovoltaic roof according to claim 5, wherein the bolt head portion of the bolt comprises a first bolt head section and a second bolt head section, the first bolt head section and the second bolt head section are parallel to each other, and a groove of a preset width is provided between the first bolt head section and the second bolt head section;

7. The photovoltaic roof as claimed in claim 5, wherein the mounting bracket includes a first section and a second section that are vertically connected to each other, the first section is fixedly connected to the roof purlin, the second section is connected to the rail, and the connecting position of the second section to the rail is located on the central axis of the rail body.

8. The photovoltaic roof according to any one of claims 1 to 4, wherein the photovoltaic module is adhesively connected to the rail platforms of the rails.

9. Photovoltaic roof according to any one of claims 1 to 4,

the roof panel also comprises protruding structures arranged on two opposite sides of the bottom plate, and the side plates are arranged on one sides of the protruding structures, which are far away from the central axis of the bottom plate;

10. The photovoltaic roof of any of claims 1-4, wherein the rail platform includes a first platform section and a second platform section, the rail further including a second runner disposed between the first platform section and the second platform section;

11. The photovoltaic roof according to any one of claims 1 to 4, wherein the long or short side of the photovoltaic module is fixedly connected with the rail platform of the rail.