WO2024125455A1 - Photovoltaic module mounting structure, photovoltaic module mounting and hanging system, and photovoltaic system - Google Patents

Abstract

A photovoltaic module mounting structure, a photovoltaic system, and a system for mounting and hanging a photovoltaic module on a roof. The photovoltaic system comprises a first photovoltaic module (23), a second photovoltaic module (24), and a photovoltaic module mounting structure; the photovoltaic module mounting structure comprises a fastener (30) and a hanging part (40); the fastener (30) comprises a first fastener (31) and a second fastener (32); the first fastener (31) is disposed at the first photovoltaic module (23); the second fastener (32) is disposed at the second photovoltaic module (24); the hanging part (40) comprises a first hook portion (41) and a second hook portion (43); and an opening of the second hook portion (43) is arranged opposite to an opening of the first hook portion (41). Photovoltaic modules (20) can be rapidly mounted by fastening the adjacent photovoltaic modules (20) to each other, and the wind uplift resistance of the photovoltaic modules can be effectively improved by means of the limited fit of the adjacent photovoltaic modules (20) in the wind uplift direction.

Description

Photovoltaic module installation structure, photovoltaic module installation and mounting system and photovoltaic system

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of Chinese patent application No. 202322979967.6, entitled “Photovoltaic module installation structure and photovoltaic system”, filed with the State Intellectual Property Office of China on November 3, 2023, the entire contents of which are incorporated by reference into this application. This application claims the priority of Chinese patent application No. 202223338229.5, entitled “A photovoltaic tile roof installation and mounting system”, filed with the State Intellectual Property Office of China on December 12, 2022, the entire contents of which are incorporated by reference into this application.

Technical Field

The present invention relates to the field of photovoltaic building integration technology, in particular to a photovoltaic module installation structure and a photovoltaic system. The present invention also relates to a photovoltaic module roof installation and hanging system.

Background technique

Photovoltaic roof is a new type of environmentally friendly roof that combines photovoltaic panels with roofs to achieve photovoltaic building integration. At present, photovoltaic building integrated photovoltaic roof products are popular.

There are two basic ways to lay photovoltaic roofs. One is a flat structure, that is, adjacent photovoltaic modules are laid flat; the other is a lapped structure, that is, adjacent photovoltaic modules are laid on top of each other in the slope direction of the roof. Photovoltaic modules use a hanging system to achieve up and down stacking installation. The hanging is nailed to the tile hanging strips, or the photovoltaic module directly replaces the back plate with a steel plate, the steel plates are bonded to form a laminated structure, and then the photovoltaic module is fixed on the roof by a pressing block.

However, the inventors realized that when actually installing and using photovoltaic roofs, existing photovoltaic roofs have the following defects: for the overlapped structure, adjacent photovoltaic modules need to be fixed in the direction of the roof slope; or the operation needs to be performed from the side of the photovoltaic module, and the installation space is small, resulting in inconvenient installation, troublesome and high construction costs; the wind-resistant performance is poor, the connection structure is cumbersome, and there is a risk of unhooking in strong winds; the method of replacing the back panel with a steel plate and then using a pressing block for installation has the problem of high cost of using the steel plate and difficulty in replacement.

Summary of the invention

One of the objectives of the present disclosure is to provide a photovoltaic module roof installation and hanging system that can solve at least one defect in the above-mentioned background technology.

The present disclosure provides a photovoltaic component mounting structure, which adopts the following technical solution: a photovoltaic component mounting structure, used to realize the connection between a first photovoltaic component and a second photovoltaic component, which includes a fastener and a hanger, the fastener includes a first fastener and a second fastener, the first fastener is arranged on the first photovoltaic component, the second fastener is arranged on the second photovoltaic component, the hanger includes a first hook and a second hook, the first hook is suitable for hanging with the first fastener, the opening of the second hook is arranged opposite to the opening of the first hook, and the second hook is suitable for cooperating with the second fastener.

By adopting the above technical solution, when installing the first photovoltaic assembly and the second photovoltaic assembly, the hanger can be fixed on the tile hanging strip first, and then the first photovoltaic assembly can be aligned with the hanger, so that the first hook is inserted from one side of the first fastener between the first fastener and the first photovoltaic assembly. Under the action of the self-weight of the photovoltaic assembly, the first hook can be used to hook the first fastener, thereby limiting the first photovoltaic assembly from sliding down relative to the hanger, effectively reducing the risk of the first photovoltaic assembly detaching from the roof under the action of wind suction. Then the second photovoltaic assembly is aligned with the hanger so that the second hook is inserted from one side of the second fastener between the second fastener and the second photovoltaic assembly, effectively reducing the risk of the second photovoltaic assembly detaching from the roof under the action of wind suction, and the second hook can limit the space for the second photovoltaic assembly to slide obliquely upward along the roof, even under the action of reverse wind blowing, the second photovoltaic assembly is not easy to detach from the hanger. The risk of the first photovoltaic assembly and the second photovoltaic assembly falling is reduced, and safety is improved. In addition, by using the method of matching the hanger and the fastener disclosed in the present invention, the first photovoltaic assembly and the second photovoltaic assembly are easy to disassemble and assemble, the difficulty of installation is reduced, the probability of photovoltaic assembly falling off is reduced, and safety is improved. At the same time, due to the reduction in the amount of steel plate, the installation cost is reduced.

The present disclosure provides a photovoltaic system, which adopts the following technical solution: the photovoltaic system includes a first photovoltaic component, a second photovoltaic component, a tile hanging bar, and the above-mentioned photovoltaic component mounting structure, the first photovoltaic component and the second photovoltaic component are interconnected through the photovoltaic component mounting structure and are fixed on the tile hanging bar.

The present invention provides a photovoltaic module (photovoltaic tile) roof installation and hanging system, comprising a plurality of photovoltaic modules, at least one hanger (first hanger), at least one first fastener (second hanger) and at least one second fastener (third hanger); the photovoltaic modules are adjacently arranged and overlapped, the first fastener is fixed to the upper back of the photovoltaic module along the roof slope direction, the second fastener is fixed to the lower back of the photovoltaic module along the roof slope direction, and the hangers are fixed to the roof and arranged at intervals along the slope direction; among the adjacent photovoltaic modules, the photovoltaic module located at the bottom is fastened with the first fastener and the hanger along the slope direction; the photovoltaic module located at the top is limitedly matched with the hanger or the first fastener along the wind direction through the second fastener.

Compared with the prior art, the present invention has at least one of the following beneficial effects:

(1) It is easy to install and reduces the difficulty and cost of construction. In addition, in the present invention, the photovoltaic components are overlapped on the tile hanging strips through the cooperation of hangers and fasteners, and the traditional cement tiles are also laid on the roof through the tile hanging strips. From the appearance of the roof, the problem of incompatibility between the photovoltaic system and the traditional roof shape is reduced, and the degree of abruptness of the photovoltaic system architectural effect is reduced.

(2) The present invention can achieve quick installation by fastening the first fastener to the hanging piece, thereby effectively saving construction time and construction cost and reducing construction difficulty.

(3) At the same time, the photovoltaic module can effectively improve the wind-resistant performance of the photovoltaic module by limiting the position of the second fastener and the hanger or the first fastener along the wind-resistant direction while facilitating construction.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, but are not limitations of the present disclosure.

FIG. 1 is a schematic diagram of a three-dimensional structure of a photovoltaic assembly installation structure according to some embodiments of the present disclosure.

2 is a schematic cross-sectional view of a photovoltaic module installation structure in a direction perpendicular to the tile hanging bar according to some embodiments of the present disclosure.

FIG. 3 is a schematic diagram of a certain moment during the process of the first fastener being inserted into or separated from the first hook portion according to the embodiment shown in FIG. 2 .

FIG. 4 is a schematic diagram of a three-dimensional structure of a pendant according to some embodiments of the present disclosure.

FIG. 5 is a schematic diagram of a three-dimensional structure of a pendant according to some other embodiments of the present disclosure.

FIG. 6 is a schematic structural diagram of a fastener arrangement according to some embodiments of the present disclosure.

FIG. 7 is a schematic diagram of a three-dimensional structure of a fastener according to some embodiments of the present disclosure.

FIG. 8 is a schematic structural diagram of a photovoltaic system according to some embodiments of the present disclosure.

FIG. 9 is a schematic structural diagram of a photovoltaic system according to yet other embodiments of the present disclosure.

FIG. 10 is a schematic diagram of a partial structure of one embodiment of the present disclosure.

FIG. 11 is a schematic diagram of the structure of the pendant in the embodiment shown in FIG. 10 of the present disclosure.

FIG. 12 is a schematic diagram of the structure of the first fastener in the embodiment shown in FIG. 10 of the present disclosure.

FIG. 13 is a schematic diagram of the structure of the second fastener in the embodiment shown in FIG. 10 of the present disclosure.

FIG. 14 is a schematic diagram of the first state of laying and connecting the embodiment shown in FIG. 10 of the present disclosure.

FIG. 15 is a second schematic diagram of the laying and connection state of the embodiment shown in FIG. 10 of the present disclosure.

FIG. 16 is a schematic diagram of a partial structure of one embodiment of the present disclosure.

FIG. 17 is a schematic diagram of the structure of the pendant in the embodiment shown in FIG. 16 of the present disclosure.

FIG. 18 is a schematic diagram of the structure of the first fastener in the embodiment shown in FIG. 16 of the present disclosure.

FIG. 19 is a schematic diagram of a partial structure of one of the embodiments of the present disclosure.

In the figure: a tile hanging strip 10; a photovoltaic module (or a photovoltaic tile) 20; a laminate 21; a module frame 22; a first frame 221; a second frame 222; a bottom frame 223; an upper opening 201; a lower opening 202; a first photovoltaic module 23; a second photovoltaic module 24; a fastener 30; a first fastener 31; a second fastener 32; a second mounting portion (or a first plate body) 33; a connecting plate (or a second plate body) 34; a hanging member 40; a first hook 41; a first insertion section 411; a first limiting section 412; a first mounting portion 42; a first limiting protrusion 421; a second hook 43; a second insertion section 431; a second extension section 432; a first extension section 433; the remaining Measuring space 44; limiting member 46; roof 80; frame member 201; hanging member (or first hanging member) 50; first mounting portion (or first fixing plate) 51; first hook portion (or hook plate) 52; first limiting plate 53; first limiting protrusion (or first baffle plate) 54; first fastener (or second hanging member) 61; second mounting portion (or second fixing plate) 62; connecting plate 63; slot 64; second limiting protrusion (or second baffle plate) 65; second limiting plate 66; second fastener (or third hanging member) 71; third mounting portion (or third fixing plate) 72; third limiting plate 73; limiting slot 74; top plate 75; connecting member (or fastener) 70.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings showing multiple embodiments according to the present disclosure. It should be understood that the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments described in the present disclosure, all other embodiments obtained by ordinary technicians in this field without spending creative labor will fall within the scope of protection of the present disclosure.

In the related art, photovoltaic modules installed by means of a hanging system have the following problems: 1) the hanging modules need to be fixed by nails on the side of the tile hanging strips, which is inconvenient to operate; 2) the problem of photovoltaic modules being separated from the hanging modules and falling off due to reverse wind blowing and wind suction is not considered. Reverse wind blowing refers to the wind blowing upward along the roof, which will guide the photovoltaic modules to slide upward obliquely. Wind suction refers to the wind forming a negative wind pressure perpendicular to the roof on the surface of the photovoltaic modules. Wind suction will guide the photovoltaic modules to move outward perpendicular to the roof. Photovoltaic modules installed by means of a combination of steel plates and pressing blocks have the problem of high steel plate use costs and difficulty in replacing photovoltaic modules after installation. In addition, the installation of photovoltaic modules in the related art also has the problem of abrupt architectural effects and incompatibility with the traditional roof appearance. For example, pressing blocks or hanging modules are exposed on the outside of photovoltaic modules, which affects the effect of photovoltaic building integration.

In order to solve or at least partially alleviate the above problems discovered by the inventors, the present disclosure provides a photovoltaic module mounting structure and a photovoltaic system, as well as a photovoltaic module roof mounting and hanging system.

FIG. 1 is a schematic diagram of a three-dimensional structure of a photovoltaic assembly installation structure according to some embodiments of the present disclosure.

FIG. 2 is a schematic cross-sectional view of a photovoltaic module installation structure in a direction perpendicular to the tile hanging bar 10 according to some embodiments of the present disclosure.

One or more embodiments of the present disclosure disclose a photovoltaic assembly mounting structure, which is used to achieve overlapping of adjacent photovoltaic assemblies 20. For ease of description, one of the two adjacent photovoltaic assemblies 20 is defined as a first photovoltaic assembly 23, and the other is defined as a second photovoltaic assembly 24. Referring to Figures 1 and 2, the photovoltaic assembly mounting structure is used to achieve the connection between the first photovoltaic assembly 23 and the second photovoltaic assembly 24, and includes a fastener 30 and a hanger 40. The fastener 30 includes a first fastener 31 and a second fastener 32. The first fastener 31 is arranged on the first photovoltaic assembly 23, and the second fastener 32 is arranged on the second photovoltaic assembly 24. The hanger 40 includes a first hook 41 and a second hook 42. The first hook 41 is suitable for hanging with the first fastener 31, and the opening of the second hook 42 is arranged opposite to the opening of the first hook 41, and the second hook 42 is suitable for cooperating with the second fastener 32. Under the self-weight of the photovoltaic component 20, the first hook 41 can be used to hook the first fastener 31, thereby effectively limiting the first photovoltaic component 23 from sliding down relative to the hanger 40, and effectively reducing the risk of the first photovoltaic component 23 falling off the roof under the action of wind suction. At the same time, the arrangement of the second hook 42 and the second fastener 32 reduces the risk of the second photovoltaic component 24 falling off the roof under the action of wind suction. The second hook 42 can limit the space for the second photovoltaic component 24 to slide obliquely upward along the roof, reducing the risk of the second photovoltaic component 24 falling off the roof under the action of reverse wind blowing. The use of the hanger 40 and the fastener 30 disclosed in the present invention reduces the risk of the photovoltaic component 20 falling under the action of wind suction and/or reverse wind blowing. The photovoltaic component 20 is easy to disassemble and assemble, the steps are simple, the installation difficulty is reduced, and it can be installed by one person. The present invention further reduces the probability of the photovoltaic component 20 falling off, improves safety, and at the same time, reduces the installation cost by reducing the use of steel plates to replace the back plate.

It is understandable that in the present disclosure, a photovoltaic module 20 may be provided with both the first fastener 31 and the second fastener 32. For example, in at least one embodiment, the photovoltaic modules 20 are laid in three rows along the roof, and the photovoltaic modules 20 in the middle row can be regarded as the first photovoltaic modules 23 relative to the photovoltaic modules 20 in the upper layer, but can also be regarded as the second photovoltaic modules 24 relative to the photovoltaic modules 20 in the lower layer. Therefore, the photovoltaic modules 20 may be provided with both the first fastener 31 and the second fastener 32.

In some embodiments, the first fastener 31 is arranged at the upper opening 201 of the first photovoltaic component 23, the second fastener 32 is arranged at the lower opening 202 of the second photovoltaic component 24, the lower opening 202 of the second photovoltaic component 24 overlaps the upper opening 201 of the first photovoltaic component 23, the bottom of the second photovoltaic component 24 is limited by the second hook 43 and the top of the first photovoltaic component 23, and the top of the first photovoltaic component 23 is limited by the first hook 41 and the bottom of the second photovoltaic component 24, thereby reducing the probability of the photovoltaic component 20 falling off due to wind suction and/or reverse wind blowing.

In some embodiments, the hanger 40 also includes a first mounting portion (mounting portion) 42 disposed between the first hook portion 41 and the second hook portion 43, and the first mounting portion 42 is suitable for connecting to the top surface of the tile hanging strip 10 through the connector 70. In the related art, the hanger 40 needs to be fixed to the tile hanging strip 10 by nailing from the side, which has the problems of small construction space, high difficulty, and inconvenient installation operation. The first mounting portion 42 of the present disclosure is connected to the top surface of the tile hanging strip 10 through the connector 70, which is more convenient for the installation of the connector 70. When the photovoltaic module 20 is actually installed, the hanger 40 is first fixed to the tile hanging strip 10 through the connector 70, and then the photovoltaic module 20 is fixed to the hanger 40 through the first hook portion 41 and the second hook portion 43.

In at least one embodiment, the connecting member 70 is a screw.

In some embodiments, a first limiting protrusion (limiting protrusion) 421 protruding downward is provided at one end of the first mounting portion 42 near the second hook portion 43. The first limiting protrusion 421 fits against the side of the tile hanging strip 10, which can increase the connection strength between the first mounting portion 42 and the tile hanging strip 10, making the connection more reliable.

FIG. 3 is a schematic diagram of a certain moment in the process of the first fastener 31 being inserted into or separated from the first hook portion 41 according to the embodiment shown in FIG. 2 .

In some embodiments, referring to FIG. 3 , the second hook 43 reserves a margin space 44 for the first photovoltaic component 23 to slide, so that the first hook 41 can be inserted from the side of the first fastener 31 away from the second hook 43 to between the first fastener 31 and the first photovoltaic component 23. The provision of the margin space 44 allows the first fastener 31 to be inserted into or detached from the first hook 41. When installing a photovoltaic component 20 on a hanger 40, the second fastener 32 of the lower opening 202 of the photovoltaic component 20 can be first extended into the second hook 43 of the hanger 40, and the photovoltaic component 20 can be tilted and slid upward under the restriction of the second hook 43, so that the first fastener 31 of the upper opening 201 of the photovoltaic component 20 moves to the oblique upper side of the first hook 41 of the hanger 40, and at this time, the height of the upper opening 201 of the photovoltaic component 20 can be lowered to insert the first fastener 31 into the opening of the first hook 41, so as to achieve the connection between the first hook 41 and the first fastener 31.

In some embodiments, a stopper 46 is detachably provided in the margin space 44 , and the stopper 46 is suitable for contacting the first photovoltaic component 23 and/or the first fastener 31 , thereby limiting the first fastener 31 from being separated from the hanger 40 .

FIG. 4 is a schematic diagram of a three-dimensional structure of a hanger 40 according to some embodiments of the present disclosure.

In some embodiments, in combination with Figures 2 and 4, the first hook portion 41 includes a first limiting section 412 connected to the first mounting portion 42, and a first insertion section 411 connected to the first limiting section 412 away from one end of the first mounting portion 42, the first limiting section 412 is suitable for contacting the first fastener 31, and the first insertion section 411 is suitable for being inserted between the first fastener 31 and the first photovoltaic component 23.

In at least one embodiment, the first limiting section 412 extends perpendicularly to the first mounting portion 42 toward the first photovoltaic component 23 , and the end of the first limiting section 412 is bent to form a first insertion section 411 , which extends obliquely toward the second hook 43 .

In some embodiments, the second hook portion 43 includes a first extension section 433, a second extension section 432 connected to the first extension section 433, and a second insertion section 431 connected to the second extension section 432 at one end away from the first extension section 433, the second extension section 432 is suitable for contacting the second fastener 32, the second insertion section 431 is suitable for being inserted between the second fastener 32 and the second photovoltaic component 24, and the first extension section 433, the second extension section 432, and the second insertion section 431 together form a surplus space 44.

In at least one embodiment, the first extension section 433 extends from the first mounting portion 42 in a direction away from the first hook portion 41, and the end of the first extension section 433 is bent and extends in a direction close to the second photovoltaic component 24 to form a second extension section 432, and the end of the second extension section 432 is bent and extends in a direction close to the first hook portion 41 to form a second insertion section 431.

In at least one embodiment, the limit member 46 is a long hard structure, and the limit member 46 is suitable for entering and exiting the margin space 44 from the left and right sides of the hanger 40. When the limit member 46 is inserted into the margin space 44, the limit member 46 can be placed on the first extension section 433. The limit member 46 contacts the left and right sides of the frame 22 at the upper opening 201 of the first photovoltaic component 23, thereby limiting the first photovoltaic component 23 from sliding upward relative to the hanger 40, effectively preventing the first photovoltaic component 23 from detaching from the hanger 40.

FIG. 5 is a schematic diagram of a three-dimensional structure of a hanger 40 according to some other embodiments of the present disclosure.

In some embodiments, as shown in FIG5 , the hanger 40 includes a first hook 41 but does not include a second hook 43, and correspondingly, the fastener 30 includes a first fastener 31 but does not include a second fastener 32. In some areas with less wind, such as some inland areas, the wind force is not enough to make the photovoltaic module 20 overcome its own weight and slide upward obliquely out of the first hook 41, and the photovoltaic module 20 can be fixed by using a hanger 40 of this structure.

FIG. 6 is a schematic structural diagram of the arrangement of the fastener 30 according to some embodiments of the present disclosure.

FIG. 7 is a schematic diagram of a three-dimensional structure of a fastener 30 according to some embodiments of the present disclosure.

In some embodiments, as shown in Fig. 2, Fig. 6, and Fig. 7, the first fastener 31 is disposed on a side of the first photovoltaic assembly 23 close to the second photovoltaic assembly 24, and the second fastener 32 is disposed on a side of the second photovoltaic assembly 24 close to the first photovoltaic assembly 23. When the first photovoltaic assembly 23 and the second photovoltaic assembly 24 are overlapped, the first fastener 31 and the second fastener 32 are adjacent, which reduces the spacing distance that needs to be set between the first hook 41 and the second hook 43, reduces the size of the hanger 40, and reduces the use cost of the hanger 40.

In some embodiments, the number of first fasteners 31 is at least two, and at least two first fasteners 31 are respectively arranged on two opposite sides of the first photovoltaic component 23 and extend toward each other; the number of second fasteners 32 is at least two, and at least two second fasteners 32 are respectively arranged on two opposite sides of the second photovoltaic component 24 and extend toward each other.

In some embodiments, the photovoltaic module 20 includes a laminate 21 and a module frame 22 disposed around the laminate 21. The module frame 22 includes a first frame 221 and a second frame 222. Referring to FIG. 6 , two photovoltaic modules 20 disposed adjacent to each other in the left and right directions are overlapped by the first frame 221 and the second frame 222.

In at least one embodiment, as shown in FIG. 3 and FIG. 6, two first fasteners 31 are respectively disposed on the first frame 221 and the second frame 222 of the upper opening 201 of the photovoltaic module 20, and extend from the left and right sides to the middle along the left and right directions, respectively. The two second fasteners 32 are respectively disposed on The first frame 221 and the second frame 222 of the lower opening 202 of the photovoltaic component 20 extend from the left and right sides to the middle in the left and right directions, so as to fix the photovoltaic component 20 on the tile hanging bar 10 from the four corners of the photovoltaic component 20 respectively.

In some embodiments, the component frame 22 further includes a bottom frame 223 and/or a top frame.

In at least one embodiment, the first fastener 31 is arranged on the top frame, and the first fastener 31 extends toward the lower opening 202 of the photovoltaic component 20 to be hooked with the first hook 41, and the second fastener 32 is arranged on the bottom frame 223, and the second fastener 32 extends toward the upper opening 201 of the photovoltaic component 20 to be inserted into the second hook 43.

In some embodiments, the fastener 30 includes a second mounting portion (first plate body) 33 and a connecting plate (second plate body) 34 that are arranged in an intersecting manner, the second mounting portion 33 is connected to the first photovoltaic component 23 or the second photovoltaic component 24, and the connecting plate 34 cooperates with the hanger 40.

In at least one embodiment, the fastener 30 is an L-shaped angle code, that is, the second mounting portion 33 is perpendicular to the connecting plate 34, and the first fastener 31 and the second fastener 32 have the same structure, so there is no need to distinguish between the first fastener 31 and the second fastener 32, thereby reducing assembly difficulty and processing costs.

In at least one embodiment, the second mounting portion 33 is attached to the photovoltaic component 20 for connection.

In at least one embodiment, the fastener 30 is fixed to the assembly frame 22 by screws, and the connection is reliable. It is easy to understand that the step of assembling the fastener 30 to the assembly frame 22 can be completed before the photovoltaic assembly 20 leaves the factory, or it can be assembled at the photovoltaic system laying site after leaving the factory.

In some embodiments, the fastener 30 is fixed to the component frame 22 by screws, or the fastener 30 is welded to the component frame 22, or the fastener 30 and the component frame 22 are integrally formed, or the fastener 30 is fixed to the component frame 22 by an adhesive, all of which can reduce the risk of failure of the connection structure.

FIG. 8 is a schematic structural diagram of a photovoltaic system according to some embodiments of the present disclosure.

FIG. 9 is a schematic structural diagram of a photovoltaic system according to yet other embodiments of the present disclosure.

One or more embodiments of the present disclosure disclose a photovoltaic system. Referring to Figures 8 and 9, the photovoltaic system includes a first photovoltaic module 23, a second photovoltaic module 24, a tile hanging strip 10, and a photovoltaic module mounting structure provided by the present disclosure. The first photovoltaic module 23 and the second photovoltaic module 24 are interconnected through the photovoltaic module mounting structure and fixed on the tile hanging strip 10. In the present disclosure, the photovoltaic module 20 is overlapped on the tile hanging strip 10 by the cooperation of the fastener 30 and the hanger 40, and the traditional cement tiles and metal tiles are also laid on the roof by the tile hanging strip 10. From the appearance of the roof, the problem of incompatibility between the photovoltaic system and the traditional roof appearance is reduced, and the degree of abruptness of the architectural effect of the photovoltaic system is reduced.

In some embodiments, the photovoltaic components 20 are arranged and laid on the roof in the manner shown in Figure 8. Then, for the two photovoltaic components 20 overlapped above and below, the second fastener 32 at the lower end 202 of the upper photovoltaic component 20 and the first fastener 31 at the upper end 201 of the lower photovoltaic component 20 can share a hanger 40 to be fixed on the tile hanging strip 10.

In some embodiments, the photovoltaic components 20 are arranged and laid on the roof in the manner shown in FIG. 9 , and a hanger 40 needs to be separately provided for each fastener 30 .

In some embodiments, a photovoltaic module roof mounting and hanging system (or photovoltaic tile roof mounting and hanging system) is provided, as shown in Figures 10 to 15, including multiple photovoltaic modules 20, at least one hanger 50, at least one first fastener 61 and at least one second fastener 71. Among them, multiple photovoltaic modules 20 are arranged adjacent to each other and overlap each other, the first fastener 61 is correspondingly fixed to the upper back of the photovoltaic module 20 along the slope direction of the roof 80, the second fastener 71 is correspondingly fixed to the lower back of the photovoltaic module 20 along the slope direction of the roof 80, and the hanger 50 is fixed to the roof 80 and arranged at intervals along the slope direction.

It should be known that when the photovoltaic module 20 is produced in a factory, the first fastener 61 and the second fastener 71 can be adhered to the corresponding positions on the back of the photovoltaic module 20 by adhesives.

When laying the photovoltaic modules 20, the photovoltaic modules 20 located at the bottom of the adjacent photovoltaic modules 20 can be fastened along the slope direction through the first fastener 61 and the corresponding hanger 50. This can achieve quick installation of the photovoltaic modules 20, thereby effectively saving construction time, construction costs and reducing construction difficulty. At the same time, the photovoltaic modules 20 located at the top can be limited along the wind-lifting direction through the second fastener 71 and the corresponding hanger 50, thereby further facilitating installation and effectively improving wind-lifting resistance.

It can be understood that when laying the photovoltaic modules 20, among the adjacent photovoltaic modules 20, the photovoltaic modules 20 located above the slope direction of the roof 80 can overlap with the upper end of the photovoltaic modules 20 below the slope of the roof 80 through the lower end, thereby achieving the overlap of adjacent photovoltaic modules 20, and when it rains, the rainwater can directly flow down along the slope direction and will not penetrate into the overlapping gap between adjacent photovoltaic modules 20, so as to ensure the waterproof performance of the photovoltaic roof after laying.

It can also be understood that the laying between any two adjacent photovoltaic modules 20 requires the use of a set of hangers 50 and first fasteners 61. and the second fastener 71. When the extension length of the hanger 50, the first fastener 61 and the second fastener 71 is long enough, the number of the hanger 50, the first fastener 61 and the second fastener 71 in each group is one; when the extension length of the hanger 50, the first fastener 61 and the second fastener 71 is short, the number of the hangers 50, the first fastener 61 and the second fastener 71 in each group is multiple, generally two or three. At the same time, the number of groups of hangers 50, the first fastener 61 and the second fastener 71 required for laying the entire roof 80 can be determined according to the number of photovoltaic modules 20. If there is only one pair of photovoltaic modules 20, only one group of hangers 50, the first fastener 61 and the second fastener 71 is required. Generally speaking, if multiple photovoltaic modules 20 are required for laying the roof 80, the number of groups of hangers 50, the first fastener 61 and the second fastener 71 used is multiple.

In some embodiments, as shown in FIGS. 10 to 12 , the hanger 50 includes a first hook portion 52 extending upward along the slope of the roof 80. The first fastener 61 has a slot 64 opening downward along the slope of the roof 80. Thus, when the photovoltaic modules 20 are laid, the photovoltaic modules 20 located at the bottom of the adjacent photovoltaic modules 20 can be buckled with the first hook portion 52 of the corresponding hanger 50 through the slot 64 of the first fastener 61.

Specifically, as shown in FIG. 10 , FIG. 14 and FIG. 15 , the opening direction of the slot 64 is downward along the slope of the roof 80, and the extension direction of the first hook 52 is upward along the slope of the roof 80, so that after the slot 64 and the first hook 52 are buckled, the first hook 52 can apply a supporting force upward along the slope of the roof 80 to the photovoltaic assembly 20 located at the lower part of the adjacent photovoltaic assembly 20 by abutting against the bottom of the slot 64, so as to ensure that the photovoltaic assembly 20 will not slide along the roof 80 under the action of gravity. And the buckling method can conveniently and quickly realize the laying of the photovoltaic assembly 20.

In some embodiments, as shown in Figures 10, 11 and 13, the hanger 50 includes a first limiting plate 53 extending downward along the slope of the roof 80; the second fastener 71 has a limiting groove 74 opening upward along the slope of the roof 80. When the adjacent photovoltaic modules 20 are laid, the hanger 50 can extend through the first limiting plate 53 to the limiting groove 74 of the second fastener 71 where the photovoltaic module 20 located above is fixed.

In some embodiments, as shown in FIG. 10, FIG. 11 and FIG. 13, the extension direction of the first limiting plate 53 is downward along the slope of the roof 80, and the opening direction of the limiting groove 74 is upward along the slope of the roof 80, so that when the photovoltaic module 20 is laid, the first limiting plate 53 can be easily extended into the limiting groove 74. In addition, in windy weather, the degree of freedom of the photovoltaic module 20 in the lifting direction is limited by the first limiting plate 53, thereby effectively improving the wind-resistant performance of the photovoltaic module 20.

In some embodiments, as shown in FIG12 , the first fastener 61 includes a second mounting portion 62, a limiting portion, and an L-shaped connecting plate 63. The second mounting portion 62 is arranged to be straight, so that the first fastener 61 can be fixedly connected to the photovoltaic module 20 through one side of the second mounting portion 62; the connecting plate 63 can be connected to the other side of the second mounting portion 62, so that the above-mentioned slot 64 is formed between the connecting plate 63 and the second mounting portion 62; the limiting portion is connected to the end of the second mounting portion 62, so that the limiting portion and the side of the photovoltaic module 20 are matched.

It can be understood that, as shown in Figures 10 and 12, since the first fastener 61 is bonded to the photovoltaic component 20 through the second mounting portion 62, the first fastener 61 and the hanger 50 are buckled at the same time. Therefore, when the photovoltaic component 20 shakes, the hanger 50 can apply sufficient limiting force to the first fastener 61, and the limiting force between the first fastener 61 and the photovoltaic component 20 depends on the adhesive force of the adhesive. Therefore, in order to ensure the bonding strength between the first fastener 61 and the photovoltaic component 20, a limiting portion can be vertically arranged at the end of the second mounting portion 62, and the limiting portion can adopt a second limiting protrusion 65. The second limiting protrusion 65 can be matched with the side of the photovoltaic component 20. Of course, in order to further improve the bonding strength, the second limiting protrusion 65 can be bonded to the side of the photovoltaic component 20.

In some embodiments, as shown in FIG13 , the second fastener 71 includes a top plate 75, a third mounting portion 72, and a third limiting plate 73. The third mounting portion 72 can be arranged flat, so that the second fastener 71 can be fixedly connected to the photovoltaic assembly 20 through the third mounting portion 72. The third limiting plate 73 and the third mounting portion 72 are arranged in parallel to form a limiting groove 74.

It should be known that since the second fastener 71 is fixed to the lower back of the photovoltaic assembly 20 along the slope direction of the roof 80, and when the photovoltaic assembly 20 is laid, the photovoltaic assembly 20 located at the upper part is overlapped on the upper end surface of the photovoltaic assembly 20 located at the lower part through the lower back. Therefore, in the actual laying process, in order to avoid direct contact between the second fastener 71 and the upper end surface of the photovoltaic assembly 20 located at the lower part, a frame member 201 can be fixed to the lower back of each photovoltaic assembly 20 along the slope direction of the roof 80. Thus, among the adjacent photovoltaic assemblies 20, the photovoltaic assembly 20 located at the upper part can contact the photovoltaic assembly 20 located at the lower part through the frame member 201. The position where the frame member 201 contacts the photovoltaic assembly 20 can be made of flexible material to ensure flexible contact between the frame member 201 and the photovoltaic assembly 20.

At the same time, since the second fastener 71 and the photovoltaic module 20 are bonded, when the photovoltaic module 20 and the second fastener 71 shake relative to each other, the connection strength between the second fastener 71 and the photovoltaic module 20 mainly depends on the adhesive force of the adhesive. Therefore, in order to improve the connection strength between the second fastener 71 and the photovoltaic module 20, the top plate 75 can be connected to the bottom outer side of the limiting groove 74, so that the second fastener 71 can be matched with the frame member 201 set at the lower end of the photovoltaic module 20 through the top plate 75, and then when the photovoltaic module 20 and the second fastener 71 shake relative to each other, the frame member 201 can provide a certain limiting force on the second fastener 71.

It should be known that the photovoltaic assembly 20 can be directly laid on the roof 80 through the hanging member 50. Of course, in order to prevent the hanging member 50 from directly contacting the roof 80, the hanging member 50 and the roof 80 can also be spaced apart.

In some embodiments, as shown in FIG. 10 , FIG. 14 and FIG. 15 , the photovoltaic module roof mounting and hanging system further includes a tile hanging bar 10, and the number of the tile hanging bars 10 corresponds to the number and position of the hangers 50. The tile hanging bars 10 can be fixed to the roof 80 by the connector 70 and arranged at intervals along the slope direction. Thus, the hangers 50 can be correspondingly fixed to the top of the tile hanging bars 10 by the connector 70 to achieve the interval arrangement of the hangers 50 and the roof 80.

In some embodiments, as shown in Figures 10, 11, 14 and 15, the hanger 50 includes a first mounting portion 51, a first limiting plate 53 and a first hook portion 52. The first mounting portion 51 is arranged straight, so that the hanger 50 fixes the first mounting portion 51 to the top of the tile hanging strip 10 through the connecting member 70. The first hook portion 52 and the first limiting plate 53 are both connected in parallel to the end of the first mounting portion 51, and the first limiting plate 53 is located above the first hook portion 52.

It can be understood that the connecting member 70 is a well-known technology to those skilled in the art, and commonly used connecting members 70 are screws and bolts, etc.

At the same time, the connection between the hanger 50 and the tile bar 10 through the connector 70 provides a supporting force for the photovoltaic module 20 along the slope direction of the roof 80. Therefore, when the photovoltaic module 20 shakes, the connector 70 and the tile bar 10 may be loosened. Therefore, in order to provide the connection stability between the hanger 50 and the tile bar 10, a first limiting protrusion 54 can be vertically arranged at the end of the first mounting portion 51, and the first limiting protrusion 54 can be matched with the upper side of the tile bar 10 along the slope direction of the roof 80. Therefore, the first limiting protrusion 54 can limit the rotational freedom of the hanger 50 relative to the tile bar 10, and then when the photovoltaic module 20 shakes, the connector 70 can be effectively prevented from loosening.

For ease of understanding, the specific laying process of the photovoltaic assembly 20 may be described below.

(1) As shown in FIG. 14 , the tile hanging strip 10 is fixed to a corresponding position on the roof 80 by means of a connecting member 70; and then the first mounting portion 51 of the hanging member 50 is fixed to the top of the corresponding tile hanging strip 10 by means of the connecting member 70, and the first limiting protrusion 54 at the end of the first mounting portion 51 can be abutted against the upper side of the tile hanging strip 10 along the slope direction of the roof 80.

(2) When laying the photovoltaic module 20, it is generally laid from top to bottom along the slope of the roof 80. Therefore, when laying the first photovoltaic module 20 located at the top of the slope of the roof 80, the photovoltaic module 20 can be provided with a first fastener 61 at the upper end and buckled with the first hook 52 on the corresponding hanger 50 of the roof 80 through the card slot 64, or it can be fixed by other fixing methods. The lower end of the photovoltaic module 20 is shown in FIG. 14, and the limiting groove 74 formed on the fixedly connected second fastener 71 can be matched with the first limiting plate 53 on the corresponding hanger 50 to limit along the wind direction.

(3) Laying the next photovoltaic module 20. As shown in FIG. 15 , the lower end of the previous photovoltaic module 20 is lifted so that there is a gap A between the third limit plate 73 of the second fastener 71 fixed on the previous photovoltaic module 20 and the first hook 52 on the corresponding hanger 50. Then, the next photovoltaic module 20 is laid from bottom to top so that the upper end of the next photovoltaic module 20 can pass through the above-mentioned gap A until the slot 64 on the first fastener 61 at the upper end of the next photovoltaic module 20 is matched with the first hook 52 on the corresponding hanger 50; during this process, the second fastener 71 at the lower end of the next photovoltaic module 20 can match the formed limit groove 74 with the first limit plate 53 on the hanger 50 at the corresponding position. Then, the lower end of the previous photovoltaic module 20 is loosened so that the photovoltaic module 20 is placed on the upper end surface of the next photovoltaic module 20 through the frame member 201 set at the lower end.

(4) Then, the above process (3) is repeated from top to bottom along the slope direction of the roof 80 until all photovoltaic modules 20 are laid.

It can be understood that in order to ensure that the above-mentioned gap A can meet the actual laying needs, the height of the limit groove 74 can be set to X, the height of the slot 64 can be set to Y, the plate thickness of the hanger 50 can be set to a, and the plate thickness of the first fastener 61 can be set to b; then only X-a≥Y+b is required to ensure that the gap A can meet the design needs.

It should be known that the hanger 50, the first fastener 61 and the second fastener 71 are generally made of alloy material, and the thickness of the plate is generally uniform. If the actual plate thickness is uneven, the above parameter b can be limited to the thickness of the connecting plate 63, and the parameter a can be limited to the thickness of the first limit plate 53.

The present disclosure provides a photovoltaic module roof installation and hanging system, as shown in Figures 16 to 19, the difference is that when laying photovoltaic modules 20, the photovoltaic modules 20 located at the upper part of the adjacent photovoltaic modules 20 can be limited along the wind-lifting direction by the second fastener 71 and the first fastener 61 on the photovoltaic module 20 located at the lower part; thus, the installation can be further facilitated and the wind-lifting resistance can be effectively improved. That is, the hanging member 50 and the first fastener 61 can be different in structure.

In some embodiments, as shown in FIG. 16 and FIG. 18 , the first fastener 61 includes a second stopper plate 66 extending downward along the slope of the roof 80; the second fastener 71 has a stopper groove 74 opening upward along the slope of the roof 80. The photovoltaic assembly 20 at the bottom extends through the second limiting plate 66 of the first fastener 61 into the limiting groove 74 of the second fastener 71 where the photovoltaic assembly 20 at the top is fixed.

In some embodiments, as shown in FIG18 , the first fastener 61 includes a second mounting portion 62, a second limiting plate 66, and an L-shaped connecting plate 63. The second mounting portion 62 is arranged to be straight, so that the first fastener 61 can be fixedly connected to the photovoltaic module 20 through one side of the second mounting portion 62; the connecting plate 63 can be connected to the other side of the second mounting portion 62, so that the above-mentioned slot 64 is formed between the connecting plate 63 and the second mounting portion 62; the second limiting plate 66 can be connected to the end of the second mounting portion 62 in parallel through the limiting portion, and the second limiting plate 66 is located directly above the second mounting portion 62, and the limiting portion can cooperate with the side of the photovoltaic module 20.

In some embodiments, as shown in FIG. 16 and FIG. 17 , the hanger 50 includes a first mounting portion 51, a first hook portion 52 and a first limiting protrusion 54. The first mounting portion 51 is arranged straight, so that the hanger 50 fixes the first mounting portion 51 to the top of the tile hanging strip 10 through the connecting member 70. The first hook portion 52 is connected in parallel to the end of the first mounting portion 51, and the first limiting protrusion 54 is connected vertically to the end of the first mounting portion 51. The first limiting protrusion 54 can be matched with the upper side of the tile hanging strip 10 along the slope direction of the roof 80.

It should be known that in some embodiments, the laying process of the photovoltaic assembly 20 is basically the same, so in order to meet the gap A requirement during the laying process, the height of the limit groove 74 can be set as X, the height of the slot 64 can be set as Y, and the thickness of the first fastener 61 can be set as b; then only Xb≥Y+b is required to ensure that the gap A can meet the design requirements. If the actual thickness of the first fastener 61 is uneven, the thickness of the second limit plate 66 can be set as _b1 , and the thickness of the connecting plate 63 can be set as _b2 , then it is only necessary to meet _Xb1≥Y + _b2 .

In some embodiments, as shown in FIG. 19 , the hanger 50 has a surplus space in which a limiter 46 is detachably provided. The limiter 46 is suitable for contacting the photovoltaic component 20 and/or the first fastener 61 , thereby limiting the first fastener 61 from being detached from the hanger 50 .

In at least one embodiment, the limit member 46 is a long hard structure, and the limit member 46 is suitable for entering and exiting the margin space from the left and right sides of the hanger 50. When the limit member 50 is inserted into the margin space, the limit member 50 can be placed in the margin space. The limit member 46 resists the photovoltaic component 20 on the lower side along the roof slope direction, thereby limiting the photovoltaic component 20 on the lower side from sliding upward relative to the hanger 50, effectively preventing the photovoltaic component 20 from detaching from the hanger 50.

The above describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the present disclosure. The present disclosure may be subject to various changes and improvements without departing from the spirit and scope of the present disclosure. These changes and improvements fall within the scope of the present disclosure to be protected. The scope of protection claimed by the present disclosure is defined by the attached claims and their equivalents.

Industrial Applicability

The present disclosure provides a photovoltaic assembly mounting structure and a photovoltaic system, wherein the photovoltaic assembly mounting structure is used to realize the connection between a first photovoltaic assembly and a second photovoltaic assembly, and comprises a fastener and a hanger, wherein the fastener comprises a first fastener and a second fastener. The photovoltaic system comprises a first photovoltaic assembly, a second photovoltaic assembly, a tile hanging bar, and the above-mentioned photovoltaic assembly mounting structure, wherein the first photovoltaic assembly and the second photovoltaic assembly are connected to each other through the photovoltaic assembly mounting structure and are fixed on the tile hanging bar.

The present disclosure also provides a photovoltaic module roof installation and hanging system, including multiple photovoltaic modules, hangers, a first fastener and a second fastener; the photovoltaic modules are adjacently arranged and overlapped, the first fastener is fixed to the upper back of the photovoltaic module along the roof slope direction, the second fastener is fixed to the lower back of the photovoltaic module along the roof slope direction, and the hangers are fixed to the roof and arranged at intervals along the slope direction; among adjacent photovoltaic modules, the photovoltaic module located at the bottom is fastened along the slope direction by the first fastener and the hanger; the photovoltaic module located at the top is limited in the wind direction by the second fastener and the hanger or the first fastener.

The beneficial effects of the present invention are as follows: by interlocking adjacent photovoltaic modules, quick installation of photovoltaic modules can be achieved, thereby saving construction time, construction cost and reducing construction difficulty; at the same time, by limiting the positioning of adjacent photovoltaic modules along the wind-lift direction, the wind-lift resistance of photovoltaic modules can be effectively improved, and the photovoltaic modules have excellent industrial practicality.

Claims (20)

1. A photovoltaic component installation structure is used to connect a first photovoltaic component with a second photovoltaic component, characterized in that it includes a fastener and a hanger, the fastener includes a first fastener and a second fastener, the first fastener is arranged on the first photovoltaic component, the second fastener is arranged on the second photovoltaic component, the hanger includes a first hook and a second hook, the first hook is suitable for hanging with the first fastener, the opening of the second hook is arranged opposite to the opening of the first hook, and the second hook is suitable for cooperating with the second fastener.
2. The photovoltaic assembly mounting structure according to claim 1 is characterized in that: the hanger also includes a first mounting portion arranged between the first hook portion and the second hook portion, and the first mounting portion is suitable for connecting to a tile hanging strip.
3. The photovoltaic component mounting structure as described in claim 1 or 2 is characterized in that: the second hook portion reserves a residual space for the first photovoltaic component to slide, so that the first hook portion can be inserted between the first fastener and the first photovoltaic component from the side of the first fastener away from the second hook portion.
4. The photovoltaic component mounting structure as described in any one of claims 1 to 3 is characterized in that: a limit member is detachably provided in the margin space, and the limit member is suitable for contacting the first photovoltaic component and/or the first fastener, thereby limiting the detachment of the first fastener relative to the hanger.
5. The photovoltaic component mounting structure as described in any one of claims 1 to 4 is characterized in that: the second hook portion includes a first extension section, a second extension section connected to the first extension section, and a second insertion section connected to an end of the second extension section away from the first extension section, the second extension section is suitable for contacting the second fastener, the second insertion section is suitable for being inserted between the second fastener and the second photovoltaic component, and the first extension section, the second extension section, and the second insertion section together form the margin space.
6. The photovoltaic component mounting structure as described in any one of claims 1 to 5 is characterized in that: the first hook portion includes a first limiting section connected to the first mounting portion, a first insertion section connected to the first limiting section away from one end of the first mounting portion, the first limiting section is suitable for contacting the first fastener, and the first insertion section is suitable for being inserted between the first fastener and the first photovoltaic component.
7. The photovoltaic assembly mounting structure according to any one of claims 1 to 6, characterized in that: the first fastener is arranged on a side of the first photovoltaic assembly close to the second photovoltaic assembly, and the second fastener is arranged on a side of the second photovoltaic assembly close to the first photovoltaic assembly.
8. The photovoltaic component mounting structure as described in any one of claims 1 to 7 is characterized in that: the first fasteners are provided in at least two, and at least two of the first fasteners are respectively provided on two opposite sides of the first photovoltaic component and extend toward each other; the second fasteners are provided in at least two, and at least two of the second fasteners are respectively provided on two opposite sides of the second photovoltaic component and extend toward each other.
9. The photovoltaic component mounting structure according to any one of claims 1 to 8, characterized in that: the fastener includes a second mounting portion and a connecting plate arranged to intersect each other, the second mounting portion is connected to the first photovoltaic component or the second photovoltaic component, and the connecting plate cooperates with the hanger.
10. A photovoltaic system, characterized in that it includes a first photovoltaic component, a second photovoltaic component, a tile hanging bar, and a photovoltaic component mounting structure as described in any one of claims 1 to 9, wherein the first photovoltaic component and the second photovoltaic component are interconnected through the photovoltaic component mounting structure and are fixed on the tile hanging bar.
11. A photovoltaic module roof mounting and hanging system, characterized in that:

    A plurality of photovoltaic modules, wherein the photovoltaic modules are arranged adjacent to each other and overlapped;

    At least one hanging member, the hanging member is fixed to the roof and arranged at intervals along the slope direction;

    At least one first fastener, the first fastener being fixed to the upper back of the photovoltaic module along the roof slope direction;

    At least one second fastener, the second fastener being fixed to the lower back of the photovoltaic assembly along the roof slope direction;

    Among the adjacent photovoltaic components, the photovoltaic component located at the bottom is fastened along the slope direction through the first fastener and the hanger; the photovoltaic component located at the top is limitedly matched along the wind direction through the second fastener and the hanger or the first fastener.
12. The photovoltaic module roof mounting and hanging system as described in claim 11 is characterized in that: the hanger includes a first hook portion extending upward along the roof slope; the first fastener has a slot opening downward along the roof slope; the photovoltaic module located at the bottom is buckled with the first hook portion of the hanger through the slot of the first fastener.
13. The photovoltaic module roof installation and hanging system as described in claim 11 or 12 is characterized in that: the hanger includes a first limit plate extending downward along the roof slope; the second fastener has a limit groove opening upward along the roof slope; when the adjacent photovoltaic modules are laid, the hanger is suitable for extending through the first limit plate to the limit groove of the second fastener fixed to the upper photovoltaic module.
14. The photovoltaic module roof mounting and hanging system according to any one of claims 11 to 13, characterized in that: the limiting groove is provided The height of is X, the height of the card slot is Y, the plate thickness of the hanger is a, and the plate thickness of the first fastener is b; then Xa≥Y+b.
15. The photovoltaic module roof mounting and hanging system as described in any one of claims 11 to 14 is characterized in that: the first fastener includes a second limit plate extending downward along the roof slope; the second fastener has a limit groove opening upward along the roof slope; when the adjacent photovoltaic modules are laid, the photovoltaic module located at the bottom extends through the second limit plate of the first fastener to the limit groove of the second fastener to which the photovoltaic module located at the top is fixed.
16. The photovoltaic module roof mounting and hanging system as described in claim 15 is characterized in that: assuming that the height of the limit groove is X, the height of the card slot is Y, and the plate thickness of the first fastener is b; then X-b≥Y+b.
17. The photovoltaic module roof mounting and hanging system as described in any one of claims 11-16 is characterized in that: the first fastener includes a second mounting portion, a limiting portion and an L-shaped connecting plate; the first fastener is fixedly connected to the photovoltaic module through one side of the second mounting portion, and the connecting plate is connected to the other side of the second mounting portion so that the slot is formed between the connecting plate and the second mounting portion; the limiting portion is connected to the end of the second mounting portion so that the limiting portion and the side of the photovoltaic module are matched.
18. The photovoltaic module roof mounting and hanging system as described in any one of claims 11-17 is characterized in that: the second fastener includes a top plate, a third mounting portion and a third limiting plate; the second fastener is fixedly connected to the photovoltaic module through the third mounting portion, and the third limiting plate and the third mounting portion are arranged in parallel to form the limiting groove; the top plate is connected to the bottom outer side of the limiting groove, so that the second fastener cooperates with the frame member arranged at the lower end of the photovoltaic module through the top plate.
19. The photovoltaic module roof mounting and hanging system as described in any one of claims 11 to 18 is characterized in that: the photovoltaic module roof mounting and hanging system also includes at least one tile hanging bar, the tile hanging bar is fixed to the roof through a connecting piece and is arranged at intervals along the slope direction; the hanging piece is fixed to the top of the tile hanging bar through a connecting piece.
20. The photovoltaic module roof mounting and hanging system as described in any one of claims 11-19 is characterized in that: the hanger includes a first mounting portion and a first limiting protrusion, and the hanger fixes the first mounting portion to the top of the tile hanging strip through a connecting member; the first limiting protrusion is vertically connected to one end of the first mounting portion, and the first limiting protrusion is suitable for cooperating with the side of the tile hanging strip.