Photovoltaic system and building

Abstract

The utility model provides a kind of photovoltaic system and building.The photovoltaic system includes keel, multiple photovoltaic tiles and first connecting piece;Keel has first step surface and second step surface, in the height direction of photovoltaic system, there is height difference between first step surface and second step surface;Multiple photovoltaic tiles include first photovoltaic tile and second photovoltaic tile, first photovoltaic tile is set to first step surface, and second photovoltaic tile is set to second step surface;First connecting piece includes limiting portion, connecting portion and elastic portion, limiting portion is connected with first photovoltaic tile, connecting portion is connected with limiting portion, and is connected with keel, elastic portion is connected with connecting portion, and abuts on the side of second photovoltaic tile away from second step surface.By elastic portion and second photovoltaic tile cooperation, reduce the influence caused by the distance difference between first photovoltaic tile and second photovoltaic tile to the stability of first photovoltaic tile and second photovoltaic tile, improve the stability of first connecting piece to the fixation of first photovoltaic tile and second photovoltaic tile.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic system technology, and more specifically, to a photovoltaic system and a building. Background Technology

[0002] Currently, in related technologies, photovoltaic systems include a keel and photovoltaic tiles, with multiple photovoltaic tiles mounted on various mounting surfaces of the keel. The mounting surfaces of the keel are arranged in a stepped pattern, and the photovoltaic tiles are also arranged in a stepped pattern according to the arrangement of the mounting surfaces. Adjacent layers of photovoltaic tiles are fixed together by snap-fit ​​connectors. However, due to processing errors between the stepped surfaces of the keel and installation errors between adjacent layers of photovoltaic tiles, the dimensions of the snap-fit ​​connectors cannot perfectly match the distance between adjacent layers of photovoltaic tiles, thus reducing the stability of the snap-fit ​​connectors in limiting the position of the photovoltaic tiles. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this utility model proposes a photovoltaic system.

[0005] The second aspect of this utility model proposes a building.

[0006] In view of the above, the first aspect of this utility model provides a photovoltaic system, including a keel, a plurality of photovoltaic tiles, and a first connector; the keel has a first stepped surface and a second stepped surface, and there is a height difference between the first stepped surface and the second stepped surface in the height direction of the photovoltaic system; the plurality of photovoltaic tiles include a first photovoltaic tile and a second photovoltaic tile, the first photovoltaic tile being disposed on the first stepped surface and the second photovoltaic tile being disposed on the second stepped surface; the first connector includes a limiting part, a connecting part, and an elastic part, the limiting part being connected to the first photovoltaic tile, the connecting part being connected to the limiting part and connected to the keel, and the elastic part being connected to the connecting part and abutting against the side of the second photovoltaic tile away from the second stepped surface.

[0007] In this technical solution, the photovoltaic system includes a keel and multiple photovoltaic tiles. The keel has a first stepped surface and a second stepped surface. The photovoltaic tiles include a first photovoltaic tile and a second photovoltaic tile. The first photovoltaic tile is set on the first stepped surface, and the second photovoltaic tile is set on the second stepped surface. Thus, the first and second photovoltaic tiles are supported by the first and second stepped surfaces on the keel, thereby improving the stability of the multiple photovoltaic tiles during the use of the photovoltaic system.

[0008] The photovoltaic system also includes a first connector, which comprises a limiting part, a connecting part, and an elastic part. The connecting part is connected to the keel, thereby enabling the installation and fixation of the first connector through the keel, thus improving the stability of the first connector. The connecting part is connected to the limiting part, which is connected to the first photovoltaic tile, thereby enabling the installation and fixation of the first photovoltaic tile through the limiting part, thus improving the stability of the first photovoltaic tile. The elastic part is connected to the connecting part and abuts against the side of the second photovoltaic tile away from the second stepped surface, thereby enabling the installation and fixation of the second photovoltaic tile through the elastic part, thus improving the stability of the second photovoltaic tile.

[0009] Because the elastic part cooperates with the second photovoltaic tile, even if there are certain differences in the distance between different first and second photovoltaic tiles, the elastic part can compensate for the difference in the distance between the first and second photovoltaic tiles through its own elastic deformation. This reduces the impact of the difference in the distance between the first and second photovoltaic tiles on their stability, improves the stability of the first connector in fixing the first and second photovoltaic tiles, and extends the service life of the photovoltaic system.

[0010] The height difference between the first and second stepped surfaces in the photovoltaic system's vertical direction ensures that the first and second photovoltaic tiles do not completely obstruct the first connector, making disassembly of the first and second photovoltaic tiles more convenient during maintenance. Furthermore, it allows for selective disassembly of the first and second photovoltaic tiles as needed, eliminating the need to disassemble both tiles simultaneously if only one requires maintenance. This simplifies maintenance procedures, reduces the difficulty of repairing the first and second photovoltaic tiles, and further enhances their ease of maintenance.

[0011] Optionally, after the first connector is fixed to the keel, the elastic part abuts against the second photovoltaic tile, and the elastic part is in a compressed state.

[0012] Optionally, the photovoltaic tiles are arranged in multiple layers. In the multi-layer photovoltaic tiles, the two adjacent photovoltaic tiles are the first photovoltaic tile and the second photovoltaic tile, respectively. The first photovoltaic tile is located on the upper layer and the second photovoltaic tile is located on the lower layer. The photovoltaic tiles on both sides are fixed by the first connector.

[0013] The first photovoltaic tile and the second photovoltaic tile do not refer to a specific photovoltaic tile among multiple photovoltaic tiles. Rather, for the convenience of expressing the scheme, the photovoltaic tile located on the lower layer of two adjacent photovoltaic tile layers is called the second photovoltaic tile, and the photovoltaic tile located on the upper layer is called the first photovoltaic tile.

[0014] For the same photovoltaic tile, this photovoltaic tile is called the first photovoltaic tile relative to the photovoltaic tile below it; and it is called the second photovoltaic tile relative to the photovoltaic tile above it.

[0015] On the same photovoltaic tile, one side of the photovoltaic tile is connected to the limiting part, and the other side of the photovoltaic tile abuts against the elastic part.

[0016] Optionally, the photovoltaic tile has a light-receiving surface and a back-lighting surface. The light-receiving surface is the surface of the photovoltaic tile that directly receives sunlight; the back-lighting surface is the surface of the photovoltaic tile that is not exposed to sunlight.

[0017] When installing two adjacent photovoltaic tiles, the back surface of one photovoltaic tile abuts against the first step surface of the keel, and the back surface of the other photovoltaic tile abuts against the second step surface of the keel.

[0018] Optionally, the keel is a stepped purlin, typically set on the roof of a building, used to install photovoltaic tiles, so that photovoltaic tiles can replace traditional tiles.

[0019] Optionally, the keel can be a hollow structure, meaning it has hollow cavities. Having hollow cavities in the keel allows for a significant reduction in its self-weight while maintaining sufficient structural strength, thereby reducing the load on the roof or mounting surface and lowering reinforcement costs. Hollow cavities also reduce the amount of raw materials used, lowering material costs. Furthermore, hollow cavities provide superior elastic deformation compared to solid structures, allowing the keel to absorb vibration energy through slight deformation of the cavity walls, which helps reduce the risk of structural damage during earthquakes or strong winds.

[0020] Optionally, the keel can be made of profiles.

[0021] Optionally, the number of first connectors is at least one, that is, the first connectors can be one, two or more.

[0022] The first connector is detachably connected to the keel. When the first connector is connected to the keel, the first connector is used to limit and fix at least two photovoltaic tiles.

[0023] Optionally, in some technical solutions of this utility model, the elastic part includes a first spring sheet and a second spring sheet; the first end of the first spring sheet is connected to the connecting part, and the second end of the first spring sheet extends away from the connecting part; the second spring sheet is arranged in parallel with the first spring sheet and abuts against the second photovoltaic tile, there is a gap between the second spring sheet and the first spring sheet, the first end of the second spring sheet is connected to the second end of the first spring sheet, and the second end of the first spring sheet extends towards the connecting part.

[0024] In this technical solution, the elastic part includes a first spring sheet, the first end of which is connected to the connecting part, and the second end of which extends away from the connecting part, making the second end of the first spring sheet a free end, thus giving the second end of the first spring sheet a certain deformation capability. The elastic part also includes a second spring sheet, the first end of which is connected to the second end of the first spring sheet, and the second end of the first spring sheet extends towards the connecting part, making the second end of the second spring sheet a free end relative to the first spring sheet, thus giving the second end of the first spring sheet a certain deformation capability. Since both the second ends of the first and second spring sheets have a certain deformation capability, and the second ends of the first and second spring sheets are located at opposite ends of the elastic part, the elastic part as a whole possesses a certain deformation capability, thereby enabling the elastic part to make more stable contact with the second photovoltaic tile and improving the stability of the elastic part in limiting the position of the second photovoltaic tile.

[0025] The second spring is arranged side-by-side with the first spring, and a gap exists between them. This allows for more flexible deformation of both springs, reduces mutual interference caused by deformation, and improves the stability of the elastic component after deformation. The parallel arrangement of the second and first springs, with a gap between them, allows the elastic component to generate greater pressure, resulting in a more secure fixation of the photovoltaic tile. Consequently, the overall structure of the photovoltaic system is more robust, and the system exhibits higher stability.

[0026] The first and second springs work together to limit the position of the second photovoltaic tile, eliminating the need for mounting holes. This reduces the probability of damage caused by mounting holes or compromised sealing, improves the stability of the second photovoltaic tile during use, and ultimately extends its service life.

[0027] Optionally, the limiting part, connecting part, and elastic part are sheet metal parts.

[0028] The limiting part, connecting part and elastic part are integrated into one structure.

[0029] Optionally, in some technical solutions of this utility model, the first spring extends obliquely from the first end to the second end relative to the surface of the second photovoltaic tile.

[0030] In this technical solution, the first spring extends at an angle from the first end to the second end relative to the surface of the second photovoltaic tile, so that the deformation of the first spring has a certain guiding effect, thereby improving the stability of the deformation process of the first spring.

[0031] Optionally, in some technical solutions of this utility model, the photovoltaic system further includes a sealing element, which is disposed between the first photovoltaic tile and the second photovoltaic tile, with one side of the sealing element abutting against the limiting part and the other side of the sealing element abutting against the second photovoltaic tile.

[0032] In this technical solution, the photovoltaic system also includes a sealing element, which is disposed between the first photovoltaic tile and the second photovoltaic tile. One side of the sealing element abuts against the limiting part, and the other side of the sealing element abuts against the second photovoltaic tile, thereby filling the gap between the first and second photovoltaic tiles. The sealing element fills the overlapping gaps in the photovoltaic system to prevent rainwater and other impurities from entering the space where the first connector is installed. This largely prevents rainwater and other impurities from entering between the first connector and the keel through the gaps, thus extending the service life of the first connector and the keel.

[0033] One side of the seal abuts against the limiting part, preventing the first connector from being directly exposed to the air. This provides a certain degree of protection for the first connector, making it less prone to rust and extending its service life.

[0034] Optionally, the seal has a hollow structure, providing a large deformation space.

[0035] Optionally, in some technical solutions of this utility model, the first photovoltaic tile includes a first protrusion extending to the outside of the first stepped surface, and a mounting groove is provided between the first protrusion and the second photovoltaic tile; at least a portion of the first connector is located in the mounting groove.

[0036] In this technical solution, the first photovoltaic tile includes a first protrusion that extends to the outer side of the first stepped surface, thereby facilitating the installation and fixing of the first photovoltaic tile and the connector. An installation groove is provided between the first protrusion and the second photovoltaic tile; at least a portion of the first connector is located within the installation groove, thereby shielding the first connector through the first protrusion, reducing the exposed portion of the first connector, and resulting in a cleaner overall appearance of the photovoltaic system.

[0037] In some technical solutions of this utility model, optionally, the limiting part includes a first limiting piece and a second limiting piece; the first limiting piece is attached to the side of the first protrusion away from the first stepped surface; the second limiting piece is attached to the side of the first protrusion close to the first stepped surface, the first end of the second limiting piece is connected to the first limiting piece, and the second end of the second limiting piece is connected to the connecting part.

[0038] In this technical solution, the limiting part includes a first limiting piece and a second limiting piece. The first limiting piece and the second limiting piece cooperate to cover the outside of the first protruding part, thereby fixing the first photovoltaic tile. This reduces the assembly difficulty of the first connector and the first photovoltaic tile, while improving the stability of the first connector fixing the first photovoltaic tile, thus making the installation and maintenance of the first connector and the first photovoltaic tile more convenient.

[0039] The first and second limiting plates cooperate to cover the outside of the first protrusion, thereby fixing the first photovoltaic tile. This eliminates the need for mounting holes in the first photovoltaic tile, reducing the probability of damage caused by mounting holes or the impact on the sealing performance of the first photovoltaic tile. It also improves the stability of the first photovoltaic tile during use and extends its service life.

[0040] Optionally, the photovoltaic tile includes a tempered glass layer. Since there is no need to drill mounting holes in the photovoltaic tile, it helps reduce the spontaneous breakage rate of the tempered glass layer, thereby extending the service life of the photovoltaic tile. It should be noted that the "spontaneous breakage rate" refers to the probability that a material will break on its own without significant external force, and is a core indicator for measuring the reliability of a material.

[0041] Optionally, in some technical solutions of this utility model, the keel is provided with an installation part, which is located between the first step surface and the second step surface; the connecting part is connected to the installation part.

[0042] In this technical solution, the keel is equipped with an installation part located between the first and second stepped surfaces. A connecting part connects to the installation part. After the first and second photovoltaic tiles are installed, they will not obstruct the installation part. Therefore, when disassembling or installing the connecting part, the first and second photovoltaic tiles will not interfere with the connecting part, improving the ease of disassembly or installation. Furthermore, since the installation part is located between the first and second stepped surfaces, it will not interfere with the installation positions of the first and second photovoltaic tiles during installation, improving the consistency of their installation positions. This reduces the distance difference between the first and second photovoltaic tiles caused by installation tolerances, further enhancing the stability of the connector in fixing the first and second photovoltaic tiles.

[0043] Optionally, the first stepped surface extends horizontally, the second stepped surface extends horizontally, the first stepped surface is connected to the top edge of the mounting part, the mounting part extends vertically, and the bottom edge of the mounting part is connected to the second stepped surface.

[0044] In some technical solutions of this utility model, optionally, the connecting part is attached to the mounting part, and the photovoltaic system further includes a second connector, which passes through the connecting part and is connected to the mounting part.

[0045] In this technical solution, the photovoltaic system also includes a second connector, which passes through the connecting portion and connects to the mounting portion. The second connector then secures the first connector, improving its stability. The connecting portion fits snugly against the mounting portion, increasing the contact area between them and further enhancing the stability of the first connector.

[0046] Alternatively, during the later installation and maintenance, the staff can first remove the seal, then unscrew the second connector at the corresponding position, and then remove the first connector to replace the damaged photovoltaic tile.

[0047] The new photovoltaic tiles are initially placed on the keel, then the first connector is installed, followed by the second connector, and finally the seal is installed to complete the replacement of the photovoltaic tiles.

[0048] Optionally, the second connector is a screw, bolt, or pin.

[0049] The second connector is a screw, which detachably connects the connecting part to the keel. With the first connector connected to the keel, the screw passes through both the connecting part and the keel. Workers can easily assemble and disassemble the first connector by turning the screw; the operation is simple, convenient, and quick.

[0050] The second connector is a bolt, and the connecting part is detachably connected to the keel via the bolt. With the first connector and keel connected, the bolt passes through both the connecting part and the keel. Workers can easily assemble and disassemble the first connector by removing and installing the bolt; the operation is simple, convenient, and quick.

[0051] The second connecting component is a pin, with cotter pins at both ends providing axial restraint. Workers can easily assemble and disassemble the first connecting component by simply removing and installing the pin; the operation is simple, convenient, and quick.

[0052] Alternatively, the connecting part can also be welded to the mounting part.

[0053] In some technical solutions of this utility model, optionally, the keel extends in a wave-like shape in the width direction of the photovoltaic system; the photovoltaic tile is attached to the keel.

[0054] In this technical solution, the keel extends in a wavy shape along the width of the photovoltaic system, and the photovoltaic tiles are attached to the keel, resulting in a larger contact area between the photovoltaic tiles and the keel, further improving the stability of the keel supporting the photovoltaic tiles. Furthermore, the wavy extension of the keel along the width of the photovoltaic system makes the system more aesthetically pleasing, thereby enhancing the user's experience with the photovoltaic system.

[0055] In the width direction of the photovoltaic system, the keel extends in a wave-like shape. The wave-like keel can position the photovoltaic tiles, making the installation of photovoltaic tiles more convenient and thus improving the assembly speed of photovoltaic tiles.

[0056] The second aspect of this utility model provides a building that includes a photovoltaic system as described in any of the above technical solutions. Therefore, the building possesses all the beneficial effects of the photovoltaic system described in any of the above technical solutions, which will not be elaborated further here.

[0057] Optionally, the building is a photovoltaic building, which is an integrated building. A photovoltaic system is integrated on the surface or periphery of the photovoltaic building, so that it has both building envelope and power generation functions. The photovoltaic system replaces building components such as roof panels, tiles, windows, building facades and rain shelters. The photovoltaic system can also be designed to form a composite building component that integrates power generation, protection and decoration functions.

[0058] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0059] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of a photovoltaic system according to an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a photovoltaic system according to an embodiment of the present invention; Figure 3 This is a front view of a keel according to an embodiment of the present invention; Figure 4 This is a left view of a keel according to an embodiment of the present invention; Figure 5 A top view of the keel according to an embodiment of the present invention; Figure 6 This is a second schematic diagram of a photovoltaic system according to an embodiment of the present invention.

[0060] Figure label: 100 Keel, 110 First Step Surface, 120 Second Step Surface, 130 Mounting Part, 200 Photovoltaic Tile, 210 First Photovoltaic Tile, 212 First Protrusion, 220 Second Photovoltaic Tile, 230 Mounting Groove, 300 First Connector, 310 Limiting Part, 312 First Limiting Plate, 314 Second Limiting Plate, 320 Connector, 330 Elastic Part, 332 First Spring Sheet, 334 Second Spring Sheet, 336 Gap, 400 Sealing Part, 500 Second Connector. Detailed Implementation

[0061] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0062] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0063] The following reference Figures 1 to 6 This invention describes a photovoltaic system and a building according to some embodiments of the present invention.

[0064] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a photovoltaic system is provided, including a keel 100, a plurality of photovoltaic tiles 200, and a first connector 300; the keel 100 has a first stepped surface 110 and a second stepped surface 120, in the height direction of the photovoltaic system ( Figure 2 In the direction indicated by the middle arrow A, there is a height difference between the first stepped surface 110 and the second stepped surface 120; the plurality of photovoltaic tiles 200 include a first photovoltaic tile 210 and a second photovoltaic tile 220, the first photovoltaic tile 210 is disposed on the first stepped surface 110, and the second photovoltaic tile 220 is disposed on the second stepped surface 120; the first connector 300 includes a limiting part 310, a connecting part 320 and an elastic part 330, the limiting part 310 is connected to the first photovoltaic tile 210, the connecting part 320 is connected to the limiting part 310 and is connected to the keel 100, and the elastic part 330 is connected to the connecting part 320 and abuts against the side of the second photovoltaic tile 220 away from the second stepped surface 120.

[0065] In this embodiment, the photovoltaic system includes a keel 100 and multiple photovoltaic tiles 200. The keel 100 has a first stepped surface 110 and a second stepped surface 120. The photovoltaic tiles 200 include a first photovoltaic tile 210 and a second photovoltaic tile 220. The first photovoltaic tile 210 is disposed on the first stepped surface 110, and the second photovoltaic tile 220 is disposed on the second stepped surface 120. Thus, the first stepped surface 110 and the second stepped surface 120 on the keel 100 support the first photovoltaic tile 210 and the second photovoltaic tile 220, thereby improving the stability of the multiple photovoltaic tiles 200 during the use of the photovoltaic system.

[0066] The photovoltaic system also includes a first connector 300, which includes a limiting part 310, a connecting part 320, and an elastic part 330. The connecting part 320 is connected to the keel 100, thereby enabling the installation and fixation of the first connector 300 through the keel 100, thus improving the stability of the first connector 300. The connecting part 320 is connected to the limiting part 310, which is also connected to the first photovoltaic tile 210, thereby enabling the installation and fixation of the first photovoltaic tile 210 through the limiting part 310, thus improving the stability of the first photovoltaic tile 210. The elastic part 330 is connected to the connecting part 320 and abuts against the side of the second photovoltaic tile 220 away from the second stepped surface 120, thereby enabling the installation and fixation of the second photovoltaic tile 220 through the elastic part, thus improving the stability of the second photovoltaic tile 220.

[0067] Because the elastic part 330 cooperates with the second photovoltaic tile 220, even if there is a certain difference in the distance between the first photovoltaic tile 210 and the second photovoltaic tile 220, the elastic part 330 can compensate for the difference in the distance between the first photovoltaic tile 210 and the second photovoltaic tile 220 through its own elastic deformation. This reduces the impact on the stability of the first photovoltaic tile 210 and the second photovoltaic tile 220 caused by the difference in the distance between them, improves the stability of the first connector 300 in fixing the first photovoltaic tile 210 and the second photovoltaic tile 220, and extends the service life of the photovoltaic system.

[0068] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in the height direction of the photovoltaic system, there is a height difference between the first stepped surface 110 and the second stepped surface 120, ensuring that the first photovoltaic tile 210 and the second photovoltaic tile 220 do not completely obstruct the first connector 300. This makes it easier to disassemble the first photovoltaic tile 210 and the second photovoltaic tile 220 during maintenance. Furthermore, it allows for selective disassembly of the first photovoltaic tile 210 and the second photovoltaic tile 220 as needed for maintenance, eliminating the situation where both the first and second photovoltaic tiles 210 and 220 must be disassembled simultaneously due to the need for maintenance of only one of the photovoltaic tiles 200. This simplifies the maintenance steps for the first and second photovoltaic tiles 210 and 220, reduces the difficulty of maintenance, and further improves the convenience of maintenance for the first and second photovoltaic tiles 210 and 220.

[0069] Optionally, after the first connector 300 is fixed to the keel 100, the elastic part 330 abuts against the second photovoltaic tile 220, and the elastic part 330 is in a compressed state.

[0070] Optionally, the multiple photovoltaic tiles 200 are arranged in multiple layers. In the multiple layers of photovoltaic tiles 200, the two adjacent layers of photovoltaic tiles 200 are the first photovoltaic tile 210 and the second photovoltaic tile 220, respectively. The first photovoltaic tile 210 is located on the upper layer and the second photovoltaic tile 220 is located on the lower layer. The photovoltaic tiles 200 on both sides are fixed by the first connector 300.

[0071] The first photovoltaic tile 210 and the second photovoltaic tile 220 do not specifically refer to any one of the multiple photovoltaic tiles 200. Rather, for the sake of convenience in expressing the scheme, the photovoltaic tile 200 located in the lower layer of two adjacent photovoltaic tile layers 200 is called the second photovoltaic tile 220, and the photovoltaic tile 200 located in the upper layer is called the first photovoltaic tile 210.

[0072] For the same photovoltaic tile 200, relative to the photovoltaic tile 200 below it, this photovoltaic tile 200 is called the first photovoltaic tile 210; relative to the photovoltaic tile 200 above it, this photovoltaic tile 200 is called the second photovoltaic tile 220.

[0073] The same photovoltaic tile 200 has one side connected to the limiting part 310 and the other side abutting against the elastic part 330.

[0074] Optionally, the photovoltaic tile 200 has a light-receiving surface and a back-lighting surface. The light-receiving surface is the surface of the photovoltaic tile 200 that directly receives sunlight; the back-lighting surface is the surface of the photovoltaic tile 200 that is not exposed to sunlight.

[0075] When installing two adjacent photovoltaic tiles 200, the backlighting surface of one photovoltaic tile 200 abuts against the first step surface 110 of the keel 100, and the backlighting surface of the other photovoltaic tile 200 abuts against the second step surface 120 of the keel 100.

[0076] Optionally, the keel 100 is a stepped purlin, usually set on the roof of a building, for installing the photovoltaic tile 200, so that the photovoltaic tile 200 replaces the traditional tile.

[0077] Optionally, the keel 100 is a hollow structure, meaning it has hollow cavities. Having hollow cavities in the keel 100 allows for a significant reduction in its self-weight while maintaining sufficient structural strength, thereby reducing the load on the roof or mounting surface and lowering reinforcement costs. Furthermore, the hollow cavities reduce the amount of raw materials used, lowering material costs. Additionally, the hollow cavities enhance the elastic deformation capacity of the keel 100 compared to a solid structure, allowing it to absorb vibration energy through slight deformation of the cavity walls, thus reducing the risk of structural damage during earthquakes or strong winds.

[0078] Optionally, the keel 100 is a profile.

[0079] Optionally, the number of first connectors 300 is at least one, that is, the first connectors 300 can be one, two or more.

[0080] The first connector 300 is detachably connected to the keel 100. When the first connector 300 is connected to the keel 100, the first connector 300 is used to limit and fix at least two photovoltaic tiles 200.

[0081] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0082] like Figure 1 and Figure 2 As shown, the elastic part 330 includes a first spring piece 332 and a second spring piece 334; the first end of the first spring piece 332 is connected to the connecting part 320, and the second end of the first spring piece 332 extends away from the connecting part 320; the second spring piece 334 is arranged side by side with the first spring piece 332 and abuts against the second photovoltaic tile 220, and there is a gap 336 between the second spring piece 334 and the first spring piece 332; the first end of the second spring piece 334 is connected to the second end of the first spring piece 332, and the second end of the first spring piece 332 extends towards the connecting part 320.

[0083] In this embodiment, the elastic portion 330 includes a first spring piece 332, the first end of which is connected to the connecting portion 320, and the second end of which extends away from the connecting portion 320, making the second end of the first spring piece 332 a free end, thereby giving the second end of the first spring piece 332 a certain deformation capability. The elastic portion 330 also includes a second spring piece 334, the first end of which is connected to the second end of the first spring piece 332, and the second end of the first spring piece 332 extends towards the connecting portion 320, making the second end of the second spring piece 334 a free end relative to the first spring piece 332, thereby giving the second end of the first spring piece 332 a certain deformation capability. Since the second ends of the first spring 332 and the second ends of the second spring 334 both have a certain deformation capability, and the second ends of the first spring 332 and the second ends of the second spring 334 are respectively located at the two ends of the elastic part 330, the elastic part 330 as a whole has a certain deformation capability, thereby enabling the elastic part 330 to contact the second photovoltaic tile 220 more stably and improving the stability of the elastic part 330 in limiting the second photovoltaic tile 220.

[0084] The second spring 334 is arranged side-by-side with the first spring 332, and a gap 336 exists between them. This allows for more flexible deformation of both springs, reduces mutual interference caused by deformation, and improves the stability of the elastic part 330 after deformation. The side-by-side arrangement of the second spring 334 with the gap 336 allows the elastic part 330 to generate greater pressure, resulting in a more secure fixation of the photovoltaic tile 200. Consequently, the overall structure of the photovoltaic system is more robust, and the system exhibits higher stability.

[0085] The first spring 332 and the second spring 334 work together to limit the second photovoltaic tile 220, so that the second photovoltaic tile 220 no longer needs to be drilled with mounting holes. This reduces the probability of the second photovoltaic tile 220 being damaged due to the installation holes or the second photovoltaic tile 220 having its sealing performance affected by the installation holes, improves the stability of the second photovoltaic tile 220 during use, and thus extends the service life of the second photovoltaic tile 220.

[0086] Optionally, the limiting part 310, the connecting part 320 and the elastic part 330 are sheet metal parts.

[0087] The limiting part 310, the connecting part 320 and the elastic part 330 are an integral structure.

[0088] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0089] like Figure 1 and Figure 2 As shown, the first spring 332 extends obliquely from the first end to the second end relative to the surface of the second photovoltaic tile 220.

[0090] In this embodiment, the first spring 332 extends obliquely from the first end to the second end relative to the surface of the second photovoltaic tile 220, so that the deformation of the first spring 332 has a certain guidance, thereby improving the stability of the deformation process of the first spring 332.

[0091] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0092] like Figure 1 and Figure 2 As shown, the photovoltaic system also includes a sealing element 400, which is disposed between the first photovoltaic tile 210 and the second photovoltaic tile 220. One side of the sealing element 400 abuts against the limiting part 310, and the other side of the sealing element 400 abuts against the second photovoltaic tile 220.

[0093] In this embodiment, the photovoltaic system also includes a sealing element 400, which is disposed between the first photovoltaic tile 210 and the second photovoltaic tile 220. One side of the sealing element 400 abuts against the limiting part 310, and the other side of the sealing element 400 abuts against the second photovoltaic tile 220, thereby filling the gap between the first photovoltaic tile 210 and the second photovoltaic tile 220. The sealing element 400 fills the overlapping gap in the photovoltaic system to prevent rainwater and other impurities from entering the space where the first connector 300 is installed. This can largely prevent rainwater and other impurities from entering between the first connector 300 and the keel 100 through the gaps, which helps to extend the service life of the first connector 300 and the keel 100.

[0094] One side of the seal 400 abuts against the limiting part 310, preventing the first connector 300 from being directly exposed to the air. This can protect the first connector 300 to a certain extent, making it less prone to rust and extending its service life.

[0095] Optionally, the seal 400 has a hollow structure, providing a large deformation space.

[0096] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0097] like Figure 1 and Figure 2 As shown, the first photovoltaic tile 210 includes a first protrusion 212 that extends to the outside of the first stepped surface 110, and has a mounting groove 230 between the first protrusion 212 and the second photovoltaic tile 220; at least a portion of the first connector 300 is located within the mounting groove 230.

[0098] In this embodiment, the first photovoltaic tile 210 includes a first protrusion 212 that extends to the outside of the first stepped surface 110, thereby facilitating the installation and fixation of the first photovoltaic tile 210 and the connector. A mounting groove 230 is provided between the first protrusion 212 and the second photovoltaic tile 220; at least a portion of the first connector 300 is located within the mounting groove 230, thereby shielding the first connector 300 through the first protrusion 212, reducing the exposed portion of the first connector 300, and resulting in a cleaner overall appearance of the photovoltaic system.

[0099] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0100] like Figure 1 and Figure 2As shown, the limiting part 310 includes a first limiting piece 312 and a second limiting piece 314; the first limiting piece 312 is attached to the side of the first protrusion 212 away from the first stepped surface 110; the second limiting piece 314 is attached to the side of the first protrusion 212 close to the first stepped surface 110, the first end of the second limiting piece 314 is connected to the first limiting piece 312, and the second end of the second limiting piece 314 is connected to the connecting part 320.

[0101] In this embodiment, the limiting part 310 includes a first limiting piece 312 and a second limiting piece 314. The first limiting piece 312 and the second limiting piece 314 cooperate to cover the outside of the first protruding part 212, thereby fixing the first photovoltaic tile 210. This reduces the assembly difficulty of the first connector 300 and the first photovoltaic tile 210, while improving the stability of the first connector 300 fixing the first photovoltaic tile 210, thus making the installation and maintenance of the first connector 300 and the first photovoltaic tile 210 more convenient.

[0102] The first limiting piece 312 and the second limiting piece 314 cooperate to cover the outside of the first protrusion 212, thereby fixing the first photovoltaic tile 210. This eliminates the need for mounting holes in the first photovoltaic tile 210, reducing the probability of damage caused by mounting holes or the impact on the sealing performance of the first photovoltaic tile 210. This improves the stability of the first photovoltaic tile 210 during use and extends its service life.

[0103] Optionally, the photovoltaic tile 200 includes a tempered glass layer. Since there is no need to drill mounting holes in the photovoltaic tile 200, it helps to reduce the spontaneous breakage rate of the tempered glass layer, thereby extending the service life of the photovoltaic tile 200. It should be noted that the "spontaneous breakage rate" refers to the probability that a material will break on its own without significant external force, and is a core indicator for measuring the reliability of a material.

[0104] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0105] like Figure 1 and Figure 2 As shown, the keel 100 is provided with a mounting part 130, which is located between the first stepped surface 110 and the second stepped surface 120; the connecting part 320 is connected to the mounting part 130.

[0106] In this embodiment, the keel 100 is provided with an installation part 130, which is located between the first stepped surface 110 and the second stepped surface 120. The connecting part 320 is connected to the installation part 130. After the first photovoltaic tile 210 and the second photovoltaic tile 220 are installed, the first photovoltaic tile 210 and the second photovoltaic tile 220 will not block the installation part 130. Therefore, when the connecting part 320 is disassembled or installed, the first photovoltaic tile 210 and the second photovoltaic tile 220 will not interfere with the connecting part 320, thereby improving the convenience of the disassembly or installation process of the connecting part 320. Furthermore, the mounting part 130 is located between the first stepped surface 110 and the second stepped surface 120. When the first photovoltaic tile 210 and the second photovoltaic tile 220 are installed, the mounting part 130 will not interfere with the installation position of the first photovoltaic tile 210 and the second photovoltaic tile 220, thereby improving the consistency of the installation position of the first photovoltaic tile 210 and the second photovoltaic tile 220, reducing the distance difference between the first photovoltaic tile 210 and the second photovoltaic tile 220 caused by installation tolerance, and further improving the stability of the connector in fixing the first photovoltaic tile 210 and the second photovoltaic tile 220.

[0107] Optionally, the first stepped surface 110 extends horizontally, the second stepped surface 120 extends horizontally, the first stepped surface 110 is connected to the top edge of the mounting portion 130, the mounting portion 130 extends vertically, and the bottom edge of the mounting portion 130 is connected to the second stepped surface 120.

[0108] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0109] like Figure 1 and Figure 2 As shown, the connecting part 320 is attached to the mounting part 130. The photovoltaic system also includes a second connector 500, which passes through the connecting part 320 and is connected to the mounting part 130.

[0110] In this embodiment, the photovoltaic system further includes a second connector 500, which passes through the connecting portion 320 and is connected to the mounting portion 130. The second connector 500 secures the first connector 300, improving its stability. The connecting portion 320 fits snugly against the mounting portion 130, resulting in a larger contact area and further enhancing the stability of the first connector 300.

[0111] Optionally, such as Figure 1 , Figure 2 and Figure 6 As shown, during the later installation and maintenance, the staff first removes the seal 400, then unscrews the second connector 500 at the corresponding position, and then removes the first connector 300 to repair the damaged photovoltaic tile 200. Figure 6 Replace the second photovoltaic tile (220) shown.

[0112] The new photovoltaic tile 200 is initially placed on the keel 100, then the first connector 300 is installed, the second connector 500 is installed, and the seal 400 is installed to complete the replacement of the photovoltaic tile 200.

[0113] Optionally, the second connector 500 is a screw, bolt, or pin.

[0114] The second connector 500 is a screw, and the connecting part 320 is detachably connected to the keel 100 by the screw. When the first connector 300 and the keel 100 are connected, the screw passes through the connecting part 320 and the keel 100. The operator can assemble and disassemble the first connector 300 by turning the screw, which is simple, convenient and quick.

[0115] The second connector 500 is a bolt, and the connecting part 320 is detachably connected to the keel 100 via the bolt. When the first connector 300 and the keel 100 are connected, the bolt passes through both the connecting part 320 and the keel 100. Workers can easily assemble and disassemble the first connector 300 by removing and installing the bolt; the operation is simple, convenient, and quick.

[0116] The second connecting component 500 is a pin, with cotter pins at both ends providing axial restraint. Workers can easily assemble and disassemble the first connecting component 300 by simply removing and installing the pin; the operation is simple, convenient, and quick.

[0117] Alternatively, the connecting part 320 may also be welded to the mounting part 130.

[0118] This embodiment provides a photovoltaic system, which, in addition to the technical features of the above embodiments, further includes the following technical features.

[0119] like Figure 3 As shown, in the width direction of the photovoltaic system ( Figure 3 In the direction indicated by the middle arrow B, the keel 100 extends in a wavy shape; the photovoltaic tile 200 is attached to the keel 100.

[0120] In this embodiment, the keel 100 extends in a wavy shape along the width direction of the photovoltaic system, and the photovoltaic tile 200 is attached to the keel 100, resulting in a larger contact area between the photovoltaic tile 200 and the keel 100, further improving the stability of the keel 100 supporting the photovoltaic tile 200. Furthermore, the wavy extension of the keel 100 along the width direction of the photovoltaic system makes the system more aesthetically pleasing, thereby enhancing the user's experience with the photovoltaic system.

[0121] In the width direction of the photovoltaic system, the keel 100 extends in a wave-like shape. The wave-like extension of the keel 100 can position the photovoltaic tile 200, making the installation of the photovoltaic tile 200 more convenient and thus improving the assembly speed of the photovoltaic tile 200.

[0122] In one embodiment of this utility model, a building is provided, including a photovoltaic system as described in any of the above embodiments. Therefore, the building possesses all the beneficial effects of the photovoltaic system as described in any of the above embodiments, which will not be elaborated further here.

[0123] Optionally, the building is a photovoltaic building, which is an integrated building. A photovoltaic system is integrated on the surface or periphery of the photovoltaic building, so that it has both building envelope and power generation functions. The photovoltaic system replaces building components such as roof panels, tiles, windows, building facades and rain shelters. The photovoltaic system can also be designed to form a composite building component that integrates power generation, protection and decoration functions.

[0124] In the claims, description, and accompanying drawings of this utility model, the term "plural" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this utility model. The terms "connect," "install," "fix," etc., should be interpreted broadly. For example, "connect" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood based on the specific circumstances described above.

[0125] In the claims, description, and drawings of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In the claims, description, and drawings of this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0126] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic system, characterized in that, include: The keel has a first stepped surface and a second stepped surface, and there is a height difference between the first stepped surface and the second stepped surface in the height direction of the photovoltaic system; Multiple photovoltaic tiles, including a first photovoltaic tile and a second photovoltaic tile, wherein the first photovoltaic tile is disposed on the first stepped surface and the second photovoltaic tile is disposed on the second stepped surface; The first connector includes a limiting part, a connecting part, and an elastic part. The limiting part is connected to the first photovoltaic tile, the connecting part is connected to the limiting part and to the keel, and the elastic part is connected to the connecting part and abuts against the side of the second photovoltaic tile away from the second stepped surface.

2. The photovoltaic system according to claim 1, characterized in that, The elastic portion includes: A first spring piece, the first end of which is connected to the connecting portion, and the second end of which extends away from the connecting portion; The second spring is arranged side by side with the first spring and abuts against the second photovoltaic tile. There is a gap between the second spring and the first spring. The first end of the second spring is connected to the second end of the first spring, and the second end of the first spring extends toward the connection portion.

3. The photovoltaic system according to claim 2, characterized in that, The first spring extends at an angle relative to the surface of the second photovoltaic tile from the first end to the second end.

4. The photovoltaic system according to claim 1, characterized in that, Also includes: A sealing element is disposed between the first photovoltaic tile and the second photovoltaic tile, with one side of the sealing element abutting against the limiting portion and the other side of the sealing element abutting against the second photovoltaic tile.

5. The photovoltaic system according to claim 1, characterized in that, The first photovoltaic tile includes a first protrusion that extends to the outside of the first stepped surface, and a mounting groove is provided between the first protrusion and the second photovoltaic tile. At least a portion of the first connector is located within the mounting groove.

6. The photovoltaic system according to claim 5, characterized in that, The limiting part includes: The first limiting piece is attached to the side of the first protrusion away from the first stepped surface; The second limiting piece is attached to the side of the first protrusion near the first stepped surface. The first end of the second limiting piece is connected to the first limiting piece, and the second end of the second limiting piece is connected to the connecting part.

7. The photovoltaic system according to claim 1, characterized in that, The keel is provided with a mounting part, which is located between the first stepped surface and the second stepped surface; The connecting part is connected to the mounting part.

8. The photovoltaic system according to claim 7, characterized in that, The connecting portion is fitted to the mounting portion, and the photovoltaic system further includes: The second connector passes through the connecting portion and is connected to the mounting portion.

9. The photovoltaic system according to any one of claims 1 to 8, characterized in that, The keel extends in a wavy shape along the width direction of the photovoltaic system; The photovoltaic tile is attached to the keel.

10. A building, characterized in that, Including the photovoltaic system as described in any one of claims 1 to 9.

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