Photovoltaic system

Abstract

The utility model provides a kind of photovoltaic system, it is related to photovoltaic tile installation technical field, and photovoltaic system includes: multiple photovoltaic tiles;Keel, keel has first step surface and second step surface, first step surface is higher than second step surface, first step surface and the back light surface of at least one photovoltaic tile are in abutment, and second step surface and the back light surface of at least one photovoltaic tile are in abutment;Limiting piece, with keel connection, to limit fixed photovoltaic tile;Limiting piece includes: connecting portion, with keel connection by connecting piece;First limiting portion, with connecting portion connection, press set in the light receiving surface of at least one photovoltaic tile;Second limiting portion, with connecting portion connection, press set in the light receiving surface of at least one photovoltaic tile.The utility model's technical scheme, at least two photovoltaic tiles are in abutment with two step surfaces respectively, to realize front and rear step lap joint, photovoltaic tile and keel are connected by limiting piece, convenient for staff to separately dismount and maintain certain photovoltaic tile, it is favorable to reduce maintenance cost.

Description

Technical Field

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

[0002] Building-integrated photovoltaics (BIPV) refers to integrating photovoltaic modules on or around a building, enabling it to function as both a building envelope and a power generator. It can directly replace traditional building components such as roofing sheets, tiles, windows, building facades, and awnings. It can also be designed to form composite building components that integrate power generation, protection, and decoration.

[0003] With the increasing popularity of building-integrated photovoltaics (BIPV) technology, photovoltaic tiles, which can replace traditional roof tiles, have emerged to better integrate with building surfaces. As a building material, photovoltaic tiles have both power generation and protection functions.

[0004] In related technologies, photovoltaic (PV) tiles are typically installed directly to the purlins (i.e., the frame) using screws. When two adjacent PV tiles overlap, the screws are obscured. Therefore, this installation structure is inconvenient for later disassembly and maintenance of the PV tiles, and results in high maintenance costs. Utility Model Content

[0005] In order to solve or improve the technical problems in related technologies, such as the installation structure being unfavorable for the later disassembly and maintenance of photovoltaic tiles and the high maintenance cost, the purpose of this utility model is to provide a photovoltaic system.

[0006] To achieve the above objectives, this utility model provides a photovoltaic system, comprising: a plurality of photovoltaic tiles; a keel having a first stepped surface and a second stepped surface, the first stepped surface being higher than the second stepped surface, the first stepped surface abutting against the backlight surface of at least one photovoltaic tile, and the second stepped surface abutting against the backlight surface of at least one photovoltaic tile; at least one limiting member connected to the keel, the limiting member being used to limit and fix the photovoltaic tiles; the limiting member comprising: a connecting portion connected to the keel via a connecting member; a first limiting portion connected to the connecting portion, the first limiting portion pressing against the light-receiving surface of at least one photovoltaic tile; and a second limiting portion connected to the connecting portion, the second limiting portion pressing against the light-receiving surface of at least one photovoltaic tile.

[0007] In the technical solution defined by this utility model, firstly, the first stepped surface is higher than the second stepped surface, and at least two photovoltaic tiles abut against the first and second stepped surfaces of the keel respectively, so that the front and rear steps of at least two photovoltaic tiles overlap, and there is a height difference between the photovoltaic tiles, which facilitates the inspection or maintenance of the photovoltaic tiles by the staff and helps to reduce maintenance costs; secondly, by setting a limiting component, the photovoltaic tiles can be connected to the keel. This design method does not require direct drilling on the photovoltaic tiles, which helps to improve the structural strength of the photovoltaic tiles and extend their service life.

[0008] Typically, photovoltaic (PV) tiles include a tempered glass layer. Since no holes need to be drilled in the PV tile, this helps reduce the spontaneous breakage rate of the tempered glass layer, thereby extending the lifespan of the PV tile. It should be noted that the "spontaneous breakage rate" refers to the probability that a material will break spontaneously without significant external force; it is a core indicator for measuring material reliability.

[0009] It should be emphasized that the photovoltaic system of this utility model uses limiting components, has a simple structure, and helps to reduce assembly and installation costs. Furthermore, the photovoltaic system of this utility model can be disassembled individually (without affecting other photovoltaic tiles), facilitating later maintenance of the system.

[0010] In some technical solutions, optionally, the keel includes: a main load-bearing component; a first protrusion connected to the main load-bearing component; a second protrusion connected to the main load-bearing component, the height of the second protrusion being less than the height of the first protrusion, the second protrusion, the first protrusion, and the main load-bearing component forming a stepped structure; a first stepped surface is located on the side of the first protrusion facing away from the main load-bearing component; a second stepped surface is located on the side of the second protrusion facing away from the main load-bearing component; the side of the first protrusion near the second protrusion has a connecting sidewall; a connecting part abuts against the connecting sidewall, and a connecting member passes through the connecting part and the connecting sidewall.

[0011] In this technical solution, because the two protrusions are at different heights, the keel of the stepped structure has stepped surfaces of different heights. At least two photovoltaic tiles overlap in front and behind and have a height difference, which makes it convenient for staff to disassemble and maintain a photovoltaic tile individually, thus helping to reduce maintenance costs.

[0012] The connecting part is detachably connected to the connecting side wall via a connector. This design, compared to the method of covering the screws after two adjacent photovoltaic tiles are overlapped, makes it easier for workers to disassemble the photovoltaic tiles individually, facilitating later system maintenance and helping to reduce maintenance costs.

[0013] In some technical solutions, optionally, a drainage groove is provided on the keel, and the drainage groove is located between the first protrusion and the second protrusion.

[0014] In this technical solution, the drainage channel mainly serves the functions of drainage and sewage discharge. By placing the drainage channel between the first protrusion and the second protrusion, that is, by placing the drainage channel in the recessed area between the first protrusion and the second protrusion, there is no need to increase the thickness or width of the keel, which is beneficial for optimizing the space layout.

[0015] In some technical solutions, the photovoltaic system may optionally include: a first adhesive pad, one side of which is connected to a first stepped surface, and the other side of which abuts against the back surface of at least one photovoltaic tile.

[0016] In this technical solution, the back surface of the photovoltaic tile abuts against the first stepped surface through the first adhesive pad. The first adhesive pad can play a buffering role and avoid rigid contact between the photovoltaic tile and the first stepped surface.

[0017] In some technical solutions, the photovoltaic system may optionally include a second adhesive pad, one side of which is connected to the second stepped surface, and the other side of which abuts against the back surface of at least one photovoltaic tile.

[0018] In this technical solution, the back surface of the photovoltaic tile abuts against the second stepped surface through a second adhesive pad. The second adhesive pad can play a buffering role and avoid rigid contact between the photovoltaic tile and the second stepped surface.

[0019] In some technical solutions, optionally, the second pad is provided with a third protrusion at one end near the first stepped surface, the third protrusion extending in a direction away from the second stepped surface, and the third protrusion is used to abut against at least one photovoltaic tile.

[0020] In this technical solution, the photovoltaic tile, which abuts against the second stepped surface via the second adhesive pad, has its end abutting against the third protrusion. The third protrusion is used to position the photovoltaic tile during installation to prevent it from shifting laterally after installation.

[0021] In some technical solutions, the limiting member may optionally include: a third limiting part, one end of which is connected to the connecting part, and the other end of which extends in a direction away from the first protrusion; a fourth limiting part, one end of which is connected to the other end of the third limiting part, and the other end of which extends in a direction away from the second protrusion, and the other end of which is connected to the first limiting part; at least a portion of the photovoltaic tile that abuts against the first stepped surface is disposed between the first limiting part and the third limiting part.

[0022] In this technical solution, when the limiting member and the keel are connected, the connecting part abuts against the connecting sidewall of the first protrusion. Since the third connecting part extends away from the first protrusion, and the fourth limiting part connects the third connecting part and the first limiting part, at least a portion of the photovoltaic tile can be positioned directly above the connecting part and the connecting member, thus preventing rain, snow, hail, or other foreign objects from directly impacting the connecting part and the connecting member. Because of the height difference between the photovoltaic tiles, the connecting member is not obstructed by the overlap between the photovoltaic tiles, which helps reduce assembly and installation costs.

[0023] In some technical solutions, optionally, the third limiting part, the fourth limiting part and the first limiting part enclose a first mounting groove, and at least a portion of the photovoltaic tile that abuts against the first stepped surface is disposed in the first mounting groove.

[0024] In this technical solution, at least a portion of the photovoltaic tile, which abuts against the first stepped surface via a first adhesive pad, is positioned within the first mounting groove. This design allows the third, fourth, and first limiting parts to enclose at least a portion of the photovoltaic tile, improving its positioning and preventing vertical or horizontal movement.

[0025] In some technical solutions, the photovoltaic system may optionally include: a third adhesive pad disposed in the first mounting groove, one side of the third adhesive pad being connected to the fourth limiting part, and the other side of the third adhesive pad abutting against the photovoltaic tile.

[0026] In this technical solution, the photovoltaic tile abuts against the fourth limiting part through the third adhesive pad. The third adhesive pad can play a buffering role and avoid rigid contact between the photovoltaic tile and the fourth limiting part.

[0027] In some technical solutions, optionally, the third limiting part, the connecting part, and the second limiting part enclose a second mounting groove; the photovoltaic system also includes: a waterproof strip, at least a portion of which is disposed in the second mounting groove.

[0028] In this technical solution, waterproof sealing strips are used to fill the overlapping gaps in the photovoltaic system. At least a portion of the waterproof sealing strip is disposed within the second mounting groove to prevent rainwater and other impurities from entering the second mounting groove of the limiting member. This largely prevents rainwater and other impurities from entering between the limiting member and the keel through the gaps, thus helping to extend the service life of the limiting member and the keel.

[0029] Additional aspects and advantages of the present invention will become apparent in the following description or may be learned by practice of the present invention. Attached Figure Description

[0030] Figure 1 A schematic diagram of a photovoltaic system according to an embodiment of the present invention is shown;

[0031] Figure 2 A schematic diagram of a keel according to an embodiment of the present invention is shown;

[0032] Figure 3 A schematic diagram of a keel according to another embodiment of the present invention is shown;

[0033] Figure 4 A schematic diagram of a photovoltaic system according to another embodiment of the present invention is shown;

[0034] Figure 5 A schematic diagram of a photovoltaic system according to another embodiment of the present invention is shown;

[0035] Figure 6An exploded view of a photovoltaic system according to an embodiment of the present invention is shown;

[0036] Figure 7 A schematic diagram of a photovoltaic system according to another embodiment of the present invention is shown.

[0037] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0038] 100: Photovoltaic system; 110: Keel; 111: Main load-bearing component; 112: First protrusion; 1121: First stepped surface; 1122: Connecting sidewall; 113: Second protrusion; 1131: Second stepped surface; 114: Hollow cavity; 115: Drainage channel; 120: Limiting component; 121: Connecting part; 122: First limiting part; 123: Second limiting part; 124: Third limiting part; 125: ... Four limiting parts; 131: First mounting groove; 132: Second mounting groove; 133: Connector; 141: First rubber pad; 142: Second rubber pad; 143: Third protrusion; 144: Third rubber pad; 150: Waterproof strip; 151: Hollow prism structure; 152: Waterproof lip; 160: Photovoltaic tile; 161: Light-receiving surface; 162: Backlighting surface; H1: Height of the first protrusion; H2: Height of the second protrusion. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the embodiments of this 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 of this utility model and the features thereof can be combined with each other.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, embodiments of the present invention may 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.

[0041] The following reference Figures 1 to 7 This invention describes a photovoltaic system provided according to some embodiments of the present invention.

[0042] In one embodiment of this utility model, such as Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the photovoltaic system 100 includes multiple photovoltaic tiles 160, a keel 110, and at least one limiting member 120. The photovoltaic tiles 160 can be curved or flat, and can be flexibly configured according to actual needs.

[0043] The keel 110 has a first stepped surface 1121 and a second stepped surface 1131, with the first stepped surface 1121 being higher than the second stepped surface 1131. In other words, the keel 110 has a stepped structure and has stepped surfaces of different heights, with the first stepped surface 1121 being higher than the second stepped surface 1131.

[0044] The first stepped surface 1121 abuts against the backlight surface 162 of at least one photovoltaic tile 160, and the second stepped surface 1131 abuts against the backlight surface 162 of at least one photovoltaic tile 160. The stepped surfaces are used to abut against the backlight surface 162 of the photovoltaic tile 160.

[0045] It should be noted that, as Figure 1 As shown, the photovoltaic tile 160 has a light-receiving surface 161 and a back-lighting surface 162. The light-receiving surface 161 is the surface of the photovoltaic tile 160 that directly receives sunlight; the back-lighting surface 162 is the surface of the photovoltaic tile 160 that is not exposed to sunlight.

[0046] When installing two adjacent photovoltaic tiles 160, the backlight surface 162 of one photovoltaic tile 160 abuts against the first step surface 1121 of the keel 110, and the backlight surface 162 of the other photovoltaic tile 160 abuts against the second step surface 1131 of the keel 110.

[0047] At least two photovoltaic tiles 160 abut against the first step surface 1121 and the second step surface 1131 of the keel 110 respectively, so that the front and rear steps of the at least two photovoltaic tiles 160 overlap, and there is a height difference between the photovoltaic tiles 160, which makes it convenient for staff to inspect or maintain the photovoltaic tiles 160 and helps to reduce maintenance costs.

[0048] Optionally, the keel 110 is a stepped purlin, typically installed on the roof of a building, for installing the photovoltaic tile 160, so that the photovoltaic tile 160 replaces the traditional tile.

[0049] Optionally, such as Figure 1 As shown, the keel 110 is a hollow structure, meaning it has a hollow cavity 114. This design has several advantages: First, it significantly reduces the weight of the keel 110 while maintaining sufficient structural strength, thereby reducing the load on the roof or mounting surface and lowering reinforcement costs. Second, it reduces the amount of raw materials used, lowering material costs. Third, the hollow structure has better elastic deformation capacity than a solid structure, and can absorb vibration energy through slight deformation of the cavity walls, which helps reduce the risk of structural damage during earthquakes or strong winds.

[0050] The limiting component 120 is connected to the keel 110, and the limiting component 120 is used to limit and fix the photovoltaic tile 160.

[0051] It should be emphasized that the number of limit components 120 is at least one, that is, there can be one, two or more limit components 120, and the number of limit components 120 can be flexibly set according to actual needs.

[0052] Optionally, the limiting member 120 and the keel 110 are detachably connected. When the limiting member 120 and the keel 110 are connected, the limiting member 120 is used to limit and fix at least two photovoltaic tiles 160.

[0053] like Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the limiting member 120 includes a connecting part 121, a first limiting part 122, and a second limiting part 123. The connecting part 121 is connected to the keel 110 via a connecting member 133.

[0054] Optionally, the connecting part 121 is detachably connected to the keel 110 via the connector 133.

[0055] In one specific embodiment, the connector 133 is a screw. The connecting part 121 is detachably connected to the keel 110 by the screw. When the limiting member 120 and the keel 110 are connected, the screw passes through the connecting part 121 and the keel 110. The operator can assemble and disassemble the limiting member 120 by rotating the screw, which is simple, convenient and quick.

[0056] In one specific embodiment, the connector 133 is a bolt. The connecting part 121 is detachably connected to the keel 110 by the bolt. When the limiting member 120 and the keel 110 are connected, the bolt passes through the connecting part 121 and the keel 110. The operator can disassemble and assemble the limiting member 120 by removing and installing the bolt, which is simple, convenient and quick.

[0057] In one specific embodiment, the connector 133 is a pin, and both ends of the pin are axially limited by cotter pins. Operators can easily assemble and disassemble the limiting component 120 by simply removing and installing the pin; the operation is simple, convenient, and quick.

[0058] When the limiting member 120 and the keel 110 are connected, the surface of the connecting part 121 abuts against the keel 110, and the connecting member 133 passes through the connecting part 121 and the keel 110.

[0059] The first limiting part 122 is connected to the connecting part 121, and the first limiting part 122 is pressed against the light-receiving surface 161 of at least one photovoltaic tile 160. The second limiting part 123 is connected to the connecting part 121, and the second limiting part 123 is pressed against the light-receiving surface 161 of at least one photovoltaic tile 160.

[0060] When installing two adjacent photovoltaic tiles 160, the light-receiving surface 161 of one photovoltaic tile 160 abuts against the first limiting part 122, and the photovoltaic tile 160 is located between the first limiting part 122 and the first stepped surface 1121; the light-receiving surface 161 of the other photovoltaic tile 160 abuts against the second limiting part 123, and the photovoltaic tile 160 is located between the second limiting part 123 and the second stepped surface 1131.

[0061] In one specific embodiment, the first limiting part 122 and the connecting part 121 are integral structures, and the second limiting part 123 and the connecting part 121 are also integral structures. This design method, compared with post-processing methods (such as welding), has better mechanical properties, higher connection strength, and is conducive to reducing the number of parts and improving assembly efficiency.

[0062] In the technical solution defined by this utility model, firstly, the first stepped surface 1121 is higher than the second stepped surface 1131, and at least two photovoltaic tiles 160 abut against the first stepped surface 1121 and the second stepped surface 1131 of the keel 110 respectively, so that at least two photovoltaic tiles 160 overlap in front and behind, and there is a height difference between the photovoltaic tiles 160, which facilitates the inspection or maintenance of the photovoltaic tiles 160 by the staff and helps to reduce maintenance costs; secondly, by setting the limiting member 120, the photovoltaic tiles 160 can be connected to the keel 110. This design method does not require direct drilling on the photovoltaic tiles 160, which helps to improve the structural strength of the photovoltaic tiles 160 and extend their service life.

[0063] Typically, photovoltaic tiles 160 include a tempered glass layer. Since no holes need to be drilled in the photovoltaic tile 160, this helps reduce the spontaneous breakage rate of the tempered glass layer, thereby extending the service life of the photovoltaic tile 160. It should be noted that the "spontaneous breakage rate" refers to the probability that a material will break spontaneously without significant external force, and is a core indicator for measuring material reliability.

[0064] It should be emphasized that the photovoltaic system 100 of this utility model adopts the limiting component 120, which has a simple structure and helps to reduce assembly and installation costs. Furthermore, the photovoltaic system 100 of this utility model can be disassembled individually (without affecting other photovoltaic tiles 160), facilitating later maintenance of the system.

[0065] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 3As shown, the keel 110 includes a main load-bearing component 111, a first protrusion 112, and a second protrusion 113. The first protrusion 112 is connected to the main load-bearing component 111, and the second protrusion 113 is also connected to the main load-bearing component 111. The main load-bearing component 111, relative to the first protrusion 112 and the second protrusion 113, primarily serves as a mounting carrier.

[0066] Optionally, the first protrusion 112 and the main load-bearing component 111 are integral structures, and the second protrusion 113 and the main load-bearing component 111 are integral structures. Compared with post-processing methods (such as welding), it has better mechanical properties and higher connection strength, which helps to reduce the number of parts and improve assembly efficiency.

[0067] In one specific embodiment, a first protrusion 112 is provided on one side of the main load-bearing member 111. A second protrusion 113 is provided on one side of the main load-bearing member 111. The first protrusion 112 and the second protrusion 113 are located on the same side of the main load-bearing member 111. The other side of the main load-bearing member 111 is used for connection with the building roof.

[0068] like Figure 3 As shown, the height H2 of the second protrusion 113 is less than the height H1 of the first protrusion 112. The second protrusion 113, the first protrusion 112, and the main load-bearing member 111 form a stepped structure.

[0069] The first stepped surface 1121 is located on the side of the first protrusion 112 away from the main load-bearing member 111; the second stepped surface 1131 is located on the side of the second protrusion 113 away from the main load-bearing member 111.

[0070] Optionally, the first stepped surface 1121 is the top surface of the first protrusion 112; the second stepped surface 1131 is the top surface of the second protrusion 113.

[0071] When installing two adjacent photovoltaic tiles 160, the backlight surface 162 of one photovoltaic tile 160 abuts against the first step surface 1121 of the keel 110, and the backlight surface 162 of the other photovoltaic tile 160 abuts against the second step surface 1131 of the keel 110.

[0072] It should be noted that, due to the different heights of the two protrusions, the stepped keel 110 has stepped surfaces of varying heights. At least two photovoltaic tiles 160 abut against the first stepped surface 1121 and the second stepped surface 1131 of the keel 110, respectively, so that at least two photovoltaic tiles 160 overlap in front and behind with a height difference, facilitating individual disassembly and maintenance of a single photovoltaic tile 160 and helping to reduce maintenance costs.

[0073] The first protrusion 112 has a connecting sidewall 1122 on the side near the second protrusion 113. When the limiting member 120 and the keel 110 are in a connected state, the connecting part 121 abuts against the connecting sidewall 1122, and the connecting member 133 passes through the connecting part 121 and the connecting sidewall 1122.

[0074] In other words, the connecting part 121 is detachably connected to the connecting side wall 1122 via the connector 133. This design, compared to the method of covering the screws after two adjacent photovoltaic tiles 160 are overlapped, makes it easier for workers to disassemble the photovoltaic tile 160 piece by piece (disassembling a single photovoltaic tile 160 without affecting other photovoltaic tiles 160), which facilitates the later maintenance of the system and helps to reduce maintenance costs.

[0075] It should be noted that since the connecting part 121 is detachably connected to the connecting side wall 1122, when the worker disassembles and assembles the limiting part 120, he only needs to disassemble and assemble the connecting part 133 on one side of the keel 110. The connecting part 133 will not be blocked due to the overlap between the photovoltaic tiles 160, which helps to reduce assembly and installation costs.

[0076] In one specific embodiment, the connecting sidewall 1122 of the first protrusion 112 is provided with a waist-shaped adjustment hole for the connector 133 to pass through. By providing the waist-shaped adjustment hole, a certain range of installation error is allowed, which facilitates the quick assembly and disassembly of the connector 133 by the workers and helps to reduce the assembly difficulty.

[0077] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 3 As shown, the keel 110 is provided with a drainage groove 115, which is located between the first protrusion 112 and the second protrusion 113.

[0078] The drainage channel 115 mainly serves to drain water and sewage, preventing rainwater or other impurities from accumulating on the keel 110, which helps reduce the load on the roof or mounting surface.

[0079] By setting the drainage groove 115 between the first protrusion 112 and the second protrusion 113, that is, the drainage groove 115 is located in the recessed area between the first protrusion 112 and the second protrusion 113, there is no need to increase the thickness or width of the keel 110, which is beneficial to optimizing the space layout.

[0080] In one specific embodiment, the wall of the drainage trough 115 is coated with polytetrafluoroethylene (PTFE), which helps to reduce the surface friction coefficient and reduce the adhesion of impurities.

[0081] It should be noted that there is a gap between the first protrusion 112 and the second protrusion 113, and this gap forms a drainage groove 115 for drainage and sewage discharge.

[0082] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the photovoltaic system 100 also includes a first adhesive pad 141. One side of the first adhesive pad 141 is connected to the first stepped surface 1121, and the other side of the first adhesive pad 141 abuts against the backlight surface 162 of at least one photovoltaic tile 160.

[0083] In other words, the backlight surface 162 of the photovoltaic tile 160 does not directly contact the first stepped surface 1121, but the backlight surface 162 of the photovoltaic tile 160 abuts against the first stepped surface 1121 through the first adhesive pad 141.

[0084] The first rubber pad 141 is a flexible rubber pad. The stiffness of the first rubber pad 141 is less than that of the keel 110. Since the backlight surface 162 of the photovoltaic tile 160 abuts against the first stepped surface 1121 through the first rubber pad 141, the first rubber pad 141 can play a buffering role, avoiding rigid contact between the photovoltaic tile 160 and the first stepped surface 1121.

[0085] It should be noted that stiffness refers to the ability of an object or structure to resist deformation when subjected to force. The first rubber pad 141 has a certain elastic deformation capacity, which can absorb some of the stress generated by the thermal expansion and contraction of the photovoltaic tile 160 and the stress generated by wind load vibration, which is beneficial to extending the service life of the photovoltaic system 100 and the photovoltaic tile 160.

[0086] In one specific embodiment, the first adhesive pad 141 and the first stepped surface 1121 are fixedly connected by adhesive bonding.

[0087] For example, the adhesive can be applied to one side of the first adhesive pad 141 and bonded to the first stepped surface 1121; or, the adhesive can be applied to the first stepped surface 1121 and bonded to the first adhesive pad 141. This connection method is easy to operate and convenient and quick.

[0088] Optionally, one of the first rubber pad 141 and the first stepped surface 1121 is provided with a first positioning protrusion, and the other is provided with a first positioning groove. The first positioning protrusion and the first positioning groove cooperate to achieve a detachable connection between the first rubber pad 141 and the first stepped surface 1121. When the first rubber pad 141 and the first stepped surface 1121 are in the connected state, the first positioning protrusion is located within the first positioning groove.

[0089] It should be noted that the number of first positioning protrusions is at least one; that is, there can be one, two, or more first positioning protrusions, and the number of first positioning protrusions can be flexibly set according to actual needs. The number of first positioning grooves is at least one; that is, there can be one, two, or more first positioning grooves, and the number of first positioning grooves can be flexibly set according to actual needs.

[0090] In one specific embodiment, a first positioning protrusion is provided on one side of the first rubber pad 141, and a first positioning groove is provided on the first stepped surface 1121. The first positioning protrusion and the first positioning groove cooperate with each other to achieve a detachable connection between the first rubber pad 141 and the first stepped surface 1121.

[0091] In one specific embodiment, the first stepped surface 1121 is provided with a first positioning protrusion, and one side of the first rubber pad 141 is provided with a first positioning groove. The first positioning protrusion and the first positioning groove cooperate with each other to achieve a detachable connection between the first rubber pad 141 and the first stepped surface 1121.

[0092] In one specific embodiment, a first slot is provided on the first stepped surface 1121, at least a portion of the first adhesive pad 141 is disposed within the first slot, and at least a portion of the first adhesive pad 141 is disposed outside the first slot. The first adhesive pad 141 located outside the first slot is used to abut against the backlight surface 162 of the photovoltaic tile 160.

[0093] In one specific embodiment, the first pad 141 is a silicone rubber pad or an ethylene propylene diene monomer (EPDM) pad, which has good chemical stability, wear resistance and weather resistance.

[0094] It should be noted that weather resistance refers to the ability of a material, product, or structure to resist the long-term effects of various climatic factors under outdoor environmental conditions. It is a core indicator for measuring the durability of materials in naturally exposed environments.

[0095] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the photovoltaic system 100 also includes a second adhesive pad 142. One side of the second adhesive pad 142 is connected to the second stepped surface 1131, and the other side of the second adhesive pad 142 abuts against the backlight surface 162 of at least one photovoltaic tile 160.

[0096] In other words, the backlight surface 162 of the photovoltaic tile 160 does not directly contact the second stepped surface 1131, but the backlight surface 162 of the photovoltaic tile 160 abuts against the second stepped surface 1131 through the second adhesive pad 142.

[0097] The second rubber pad 142 is a flexible rubber pad. The stiffness of the second rubber pad 142 is less than that of the keel 110. Since the backlight surface 162 of the photovoltaic tile 160 abuts against the second stepped surface 1131 through the second rubber pad 142, the second rubber pad 142 can play a buffering role, avoiding rigid contact between the photovoltaic tile 160 and the second stepped surface 1131.

[0098] It should be noted that the second adhesive pad 142 has a certain elastic deformation capacity, which can absorb some of the stress caused by the thermal expansion and contraction of the photovoltaic tile 160 and the stress caused by wind load vibration, which is beneficial to extending the service life of the photovoltaic system 100 and the photovoltaic tile 160.

[0099] In one specific embodiment, the second adhesive pad 142 is fixedly connected to the second stepped surface 1131 by adhesive bonding.

[0100] For example, the adhesive can be applied to one side of the second adhesive pad 142 and bonded to the second stepped surface 1131; or, the adhesive can be applied to the second stepped surface 1131 and bonded to the second adhesive pad 142. This connection method is easy to operate and convenient and quick.

[0101] Optionally, one of the second rubber pad 142 and the second stepped surface 1131 is provided with a second positioning protrusion, and the other is provided with a second positioning groove. The second positioning protrusion and the second positioning groove cooperate to achieve a detachable connection between the second rubber pad 142 and the second stepped surface 1131. When the second rubber pad 142 and the second stepped surface 1131 are connected, the second positioning protrusion is located within the second positioning groove.

[0102] It should be noted that the number of second positioning protrusions is at least one; that is, there can be one, two, or more second positioning protrusions, and the number can be flexibly set according to actual needs. Similarly, the number of second positioning grooves is at least one; that is, there can be one, two, or more second positioning grooves, and the number can be flexibly set according to actual needs.

[0103] In one specific embodiment, a second positioning protrusion is provided on one side of the second rubber pad 142, and a second positioning groove is provided on the second stepped surface 1131. The second positioning protrusion and the second positioning groove cooperate with each other to achieve a detachable connection between the second rubber pad 142 and the second stepped surface 1131.

[0104] In one specific embodiment, the second stepped surface 1131 is provided with a second positioning protrusion, and one side of the second rubber pad 142 is provided with a second positioning groove. Through the mutual cooperation of the second positioning protrusion and the second positioning groove, the second rubber pad 142 and the second stepped surface 1131 are detachably connected.

[0105] In one specific embodiment, a second slot is provided on the second stepped surface 1131, at least a portion of the second adhesive pad 142 is disposed within the second slot, and at least a portion of the second adhesive pad 142 is disposed outside the second slot. The second adhesive pad 142 located outside the second slot is used to abut against the backlight surface 162 of the photovoltaic tile 160.

[0106] In one specific embodiment, the second pad 142 is a silicone rubber pad or an EPDM rubber pad, which has good chemical stability, wear resistance and weather resistance.

[0107] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 6 As shown, the second rubber pad 142 has a third protrusion 143 at one end near the first stepped surface 1121. The third protrusion 143 extends in a direction away from the second stepped surface 1131. The third protrusion 143 is used to abut against at least one photovoltaic tile 160.

[0108] In one specific embodiment, the third protrusion 143 and the second rubber pad 142 are an integral structure, which has better mechanical properties and higher connection strength compared with the post-processing method, and is conducive to reducing the number of parts and improving assembly efficiency.

[0109] When installing two adjacent photovoltaic tiles 160, the backlight surface 162 of one photovoltaic tile 160 abuts against the first stepped surface 1121 through the first adhesive pad 141, and the backlight surface 162 of the other photovoltaic tile 160 abuts against the second stepped surface 1131 through the second adhesive pad 142.

[0110] The photovoltaic tile 160, which abuts against the second stepped surface 1131 via the second adhesive pad 142, has its end abutting against the third protrusion 143. The third protrusion 143 is used to position the photovoltaic tile 160 during installation to prevent it from shifting left or right after installation.

[0111] In one specific embodiment, the third protrusion 143 is a silicone rubber pad or an EPDM rubber pad, which has good chemical stability, wear resistance and weather resistance.

[0112] It should be noted that the second adhesive pad 142 has a bending structure, which facilitates the installation and positioning of the photovoltaic system 100.

[0113] In some embodiments, optionally, such as Figure 1As shown, the limiting member 120 also includes a third limiting portion 124 and a fourth limiting portion 125. One end of the third limiting portion 124 is connected to the connecting portion 121, and the other end of the third limiting portion 124 extends in a direction away from the first protrusion 112. One end of the fourth limiting portion 125 is connected to the other end of the third limiting portion 124, and the other end of the fourth limiting portion 125 extends in a direction away from the second protrusion 113. The other end of the fourth limiting portion 125 is connected to the first limiting portion 122.

[0114] At least a portion of the photovoltaic tile 160 that abuts against the first stepped surface 1121 is disposed between the first limiting part 122 and the third limiting part 124.

[0115] When installing two adjacent photovoltaic tiles 160, the backlight surface 162 of one photovoltaic tile 160 abuts against the first stepped surface 1121 through the first adhesive pad 141, and the backlight surface 162 of the other photovoltaic tile 160 abuts against the second stepped surface 1131 through the second adhesive pad 142.

[0116] The photovoltaic tile 160, which abuts against the first stepped surface 1121 via the first adhesive pad 141, is at least partially disposed between the first limiting part 122 and the third limiting part 124.

[0117] When the limiting member 120 is connected to the keel 110, the connecting portion 121 abuts against the connecting sidewall 1122 of the first protrusion 112. Since the third limiting portion 124 extends away from the first protrusion 112, and the fourth limiting portion 125 connects the third limiting portion 124 and the first limiting portion 122, at least a portion of the photovoltaic tile 160 can be positioned directly above the connecting portion 121 and the connecting member 133, preventing rain, snow, hail, or other foreign objects from directly impacting the connecting portion 121 and the connecting member 133. Because of the height difference between the photovoltaic tiles 160, the connecting member 133 is not obstructed by the overlap between the photovoltaic tiles 160, which helps reduce assembly and installation costs.

[0118] Optionally, the first limiting part 122, the fourth limiting part 125, the third limiting part 124, the connecting part 121, and the second limiting part 123 of the limiting member 120 are all plate-shaped structures. Furthermore, the first limiting part 122, the fourth limiting part 125, the third limiting part 124, the connecting part 121, and the second limiting part 123 are connected sequentially from top to bottom to form an approximate "S" shape.

[0119] Optionally, one side surface of the third limiting portion 124 is flush with the first stepped surface 1121. One side surface of the third limiting portion 124 is used to abut against the backlight surface 162 of the photovoltaic tile 160. The third limiting portion 124 can limit the photovoltaic tile 160 to a certain extent.

[0120] In one specific embodiment, the connecting portion 121 abuts against the connecting sidewall 1122, and both ends of the connecting portion 121 extend along the height direction of the first protrusion 112. One end of the third limiting portion 124 is connected to one end of the connecting portion 121, and the other end of the third limiting portion 124 extends away from the first protrusion 112. One end of the fourth limiting portion 125 is connected to the other end of the third limiting portion 124, and the other end of the fourth limiting portion 125 extends away from the second protrusion 113. The other end of the fourth limiting portion 125 is connected to one end of the first limiting portion 122. The other end of the first limiting portion 122 extends towards the first protrusion 112.

[0121] One side surface of the first limiting part 122 is used to abut against the light-receiving surface 161 of the photovoltaic tile 160 to limit and fix the photovoltaic tile 160.

[0122] One end of the second limiting part 123 is connected to the other end of the connecting part 121, and the other end of the second limiting part 123 extends in a direction away from the first protrusion 112. One side surface of the second limiting part 123 is used to abut against the light-receiving surface 161 of the photovoltaic tile 160 to limit and fix the photovoltaic tile 160.

[0123] In one specific embodiment, the first limiting part 122, the fourth limiting part 125, the third limiting part 124, the connecting part 121, and the second limiting part 123 are all integral structures, that is, the limiting part 120 is integrally formed. This design has good mechanical properties and high connection strength, which helps to reduce the number of parts and improve assembly efficiency.

[0124] In one specific embodiment, the limiting member 120 is an S-shaped pressure member.

[0125] In one specific embodiment, the limiting member 120 is an S-shaped structural member.

[0126] In one specific embodiment, the limiting member 120 is an S-shaped windproof hook. The S-shaped windproof hook is used to connect to the purlin (keel 110) by screws.

[0127] After being connected to the keel 110, the S-shaped pressure piece, S-shaped structural piece, or S-shaped windproof hook can simultaneously press down two adjacent photovoltaic tiles 160 to install the two adjacent photovoltaic tiles 160.

[0128] In some embodiments, the S-shaped clamp is optionally secured to the keel 110 by a screw (a type of connector 133). The screw passes through the first protrusion 112 of the keel 110 to ensure that the screw does not twist when subjected to shear force.

[0129] Furthermore, the third rubber pad 144 abuts against the lower end of the photovoltaic tile 160, serving as a support point for the weight of the photovoltaic tile 160. The third rubber pad 144 is a flexible pad, which can largely protect the photovoltaic tile 160, making it less prone to damage.

[0130] In some embodiments, optionally, such as Figure 1 As shown, the third limiting part 124, the fourth limiting part 125 and the first limiting part 122 surround the first mounting groove 131, and at least a portion of the photovoltaic tile 160 that abuts against the first stepped surface 1121 is disposed in the first mounting groove 131.

[0131] When installing two adjacent photovoltaic tiles 160, the backlight surface 162 of one photovoltaic tile 160 abuts against the first stepped surface 1121 through the first adhesive pad 141, and the backlight surface 162 of the other photovoltaic tile 160 abuts against the second stepped surface 1131 through the second adhesive pad 142.

[0132] The photovoltaic tile 160, which abuts against the first stepped surface 1121 via the first adhesive pad 141, is at least partially disposed within the first mounting groove 131. In this design, the third limiting part 124, the fourth limiting part 125, and the first limiting part 122 can envelop at least a portion of the photovoltaic tile 160, thereby improving the limiting effect on the photovoltaic tile 160 and preventing it from shifting vertically or horizontally.

[0133] In some embodiments, optionally, such as Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the photovoltaic system 100 also includes a third adhesive pad 144. The third adhesive pad 144 is disposed in the first mounting groove 131, one side of the third adhesive pad 144 is connected to the fourth limiting part 125, and the other side of the third adhesive pad 144 abuts against the photovoltaic tile 160.

[0134] In other words, the end of the photovoltaic tile 160 does not directly contact the fourth limiting part 125, but the end of the photovoltaic tile 160 abuts against the fourth limiting part 125 through the third adhesive pad 144.

[0135] The third rubber pad 144 is a flexible rubber pad. The stiffness of the third rubber pad 144 is less than that of the keel 110. Since the photovoltaic tile 160 abuts against the fourth limiting part 125 through the third rubber pad 144, the third rubber pad 144 can play a buffering role, avoiding rigid contact between the photovoltaic tile 160 and the fourth limiting part 125.

[0136] It should be noted that the third adhesive pad 144 has a certain elastic deformation capacity, which can absorb some of the stress caused by the thermal expansion and contraction of the photovoltaic tile 160 and the stress caused by wind load vibration, which is beneficial to extending the service life of the photovoltaic system 100 and the photovoltaic tile 160.

[0137] In one specific embodiment, the third adhesive pad 144 and the fourth limiting part 125 are fixedly connected by adhesive bonding.

[0138] For example, the adhesive can be applied to one side of the third adhesive pad 144 and bonded to the fourth limiting part 125; or, the adhesive can be applied to the fourth limiting part 125 and bonded to the third adhesive pad 144. This connection method is easy to operate and convenient and quick.

[0139] Optionally, one of the third rubber pad 144 and the fourth limiting part 125 is provided with a third positioning protrusion, and the other is provided with a third positioning groove. The third positioning protrusion and the third positioning groove cooperate to achieve a detachable connection between the third rubber pad 144 and the fourth limiting part 125. When the third rubber pad 144 and the fourth limiting part 125 are connected, the third positioning protrusion is located within the third positioning groove.

[0140] It should be noted that there must be at least one third positioning protrusion; that is, there can be one, two, or more third positioning protrusions, and the number of third positioning protrusions can be flexibly set according to actual needs. Similarly, there must be at least one third positioning groove; that is, there can be one, two, or more third positioning grooves, and the number of third positioning grooves can be flexibly set according to actual needs.

[0141] In one specific embodiment, a third positioning protrusion is provided on one side of the third adhesive pad 144, and a third positioning groove is provided on the fourth limiting part 125. The third positioning protrusion and the third positioning groove cooperate with each other to achieve a detachable connection between the third adhesive pad 144 and the fourth limiting part 125.

[0142] In one specific embodiment, the fourth limiting part 125 is provided with a third positioning protrusion, and one side of the third rubber pad 144 is provided with a third positioning groove. Through the mutual cooperation of the third positioning protrusion and the third positioning groove, the third rubber pad 144 and the fourth limiting part 125 are detachably connected.

[0143] In one specific embodiment, the fourth limiting part 125 is provided with a third slot, at least a portion of the third adhesive pad 144 is disposed within the third slot, and at least a portion of the third adhesive pad 144 is disposed outside the third slot. The third adhesive pad 144 located outside the third slot is used to abut against the photovoltaic tile 160.

[0144] In one specific embodiment, the third pad 144 is a silicone rubber pad or an EPDM rubber pad, which has good chemical stability, wear resistance and weather resistance.

[0145] In some embodiments, optionally, such as Figure 1 As shown, the third limiting part 124, the connecting part 121 and the second limiting part 123 surround the second mounting groove 132.

[0146] The photovoltaic system 100 also includes a waterproof sealing strip 150. At least a portion of the waterproof sealing strip 150 is disposed within the second mounting groove 132.

[0147] The waterproof sealing strip 150 is used to fill the overlapping gaps in the photovoltaic system 100. At least a portion of the waterproof sealing strip 150 is disposed in the second mounting groove 132 to prevent rainwater and other impurities from entering the second mounting groove 132 of the limiting member 120. This can largely prevent rainwater and other impurities from entering the space between the limiting member 120 and the keel 110 through the gaps, which helps to extend the service life of the limiting member 120 and the keel 110.

[0148] It should be noted that one side of the waterproof strip 150 is used to abut against the connector 133, preventing the connector 133 from being directly exposed to the air. By setting the waterproof strip 150, the connector 133 can be protected to a certain extent, making it less prone to rust and helping to extend its service life.

[0149] Optionally, at least two photovoltaic tiles 160 are installed overlapping each other from bottom to top, with the overlap seam filled with waterproof adhesive strip 150. The waterproof adhesive strip 150 has a hollow structure and a large deformation space.

[0150] In some embodiments, the waterproof strip 150 may optionally include a hollow prism structure 151 and a waterproof lip 152, with the waterproof lip 152 connected to the hollow prism structure 151. The hollow prism structure 151 is disposed within the second mounting groove 132 to prevent rainwater and other impurities from entering the second mounting groove 132 of the limiting member 120, and also to protect the connector 133.

[0151] The waterproof lip 152 abuts against the light-receiving surface 161 of the photovoltaic tile 160, and the waterproof lip 152 also abuts against the second limiting part 123. The waterproof lip 152 can prevent rainwater and other impurities from entering between the second limiting part 123 and the light-receiving surface 161 of the photovoltaic tile 160 to a certain extent.

[0152] In one specific embodiment, the hollow prism structure 151 and the waterproof lip 152 are an integral structure, which has better mechanical properties and higher connection strength compared to post-processing, and is conducive to reducing the number of parts and improving assembly efficiency.

[0153] In some embodiments, optionally, when performing later installation and maintenance, the staff first removes the waterproof strip 150, then unscrews the screws (one type of connector 133) at the corresponding position, and then removes the limiting member 120, so that the damaged photovoltaic tile 160 can be replaced.

[0154] Place the new photovoltaic tile 160 on the keel 110, then install the limiting piece 120, tighten the screws, and install the waterproof strip 150 to complete the replacement of the photovoltaic tile 160.

[0155] It should be noted that, in Figure 5 and Figure 6 In the image, the photovoltaic tile 160 with a shadow on its cross-section indicates that the photovoltaic tile 160 is damaged.

[0156] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0157] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0158] In the description of this specification, 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 the present invention. In this specification, 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.

[0159] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements 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: Multiple photovoltaic tiles; The keel has a first stepped surface and a second stepped surface, the first stepped surface being higher than the second stepped surface, the first stepped surface abutting against the backlight surface of at least one of the photovoltaic tiles, and the second stepped surface abutting against the backlight surface of at least one of the photovoltaic tiles. At least one limiting member is provided, the limiting member being connected to the keel, and the limiting member being used to limit and fix the photovoltaic tile; The limiting component includes: The connecting part is connected to the keel via a connector; A first limiting part is connected to the connecting part, and the first limiting part is pressed against the light-receiving surface of at least one of the photovoltaic tiles; The second limiting part is connected to the connecting part, and the second limiting part is pressed against the light-receiving surface of at least one of the photovoltaic tiles.

2. The photovoltaic system according to claim 1, characterized in that, The keel includes: Main load-bearing components; The first protrusion is connected to the main load-bearing component; The second protrusion is connected to the main load-bearing component. The height of the second protrusion is less than the height of the first protrusion. The second protrusion, the first protrusion, and the main load-bearing component form a stepped structure. The first stepped surface is located on the side of the first protrusion away from the main load-bearing component; the second stepped surface is located on the side of the second protrusion away from the main load-bearing component. The first protrusion has a connecting sidewall on the side near the second protrusion; the connecting portion abuts against the connecting sidewall, and the connector passes through the connecting portion and the connecting sidewall.

3. The photovoltaic system according to claim 2, characterized in that, The keel is provided with a drainage groove, which is located between the first protrusion and the second protrusion.

4. The photovoltaic system according to any one of claims 1 to 3, characterized in that, Also includes: A first adhesive pad, one side of which is connected to the first stepped surface, and the other side of which abuts against the back surface of at least one of the photovoltaic tiles.

5. The photovoltaic system according to any one of claims 1 to 3, characterized in that, Also includes: The second adhesive pad has one side connected to the second stepped surface and the other side abutting against the back surface of at least one of the photovoltaic tiles.

6. The photovoltaic system according to claim 5, characterized in that, The second adhesive pad has a third protrusion at one end near the first stepped surface. The third protrusion extends in a direction away from the second stepped surface and is used to abut against at least one of the photovoltaic tiles.

7. The photovoltaic system according to claim 2 or 3, characterized in that, The limiting component also includes: The third limiting part has one end connected to the connecting part, and the other end of the third limiting part extends in a direction away from the first protrusion. The fourth limiting part has one end connected to the other end of the third limiting part, the other end of the fourth limiting part extends away from the second protrusion, and the other end of the fourth limiting part is connected to the first limiting part. At least a portion of the photovoltaic tile that abuts against the first stepped surface is disposed between the first limiting portion and the third limiting portion.

8. The photovoltaic system according to claim 7, characterized in that, The third limiting part, the fourth limiting part, and the first limiting part form a first mounting groove, and at least a portion of the photovoltaic tile that abuts against the first stepped surface is disposed in the first mounting groove.

9. The photovoltaic system according to claim 8, characterized in that, Also includes: A third adhesive pad is disposed in the first mounting groove. One side of the third adhesive pad is connected to the fourth limiting part, and the other side of the third adhesive pad abuts against the photovoltaic tile.

10. The photovoltaic system according to claim 7, characterized in that, The third limiting part, the connecting part, and the second limiting part form a second mounting groove; The photovoltaic system also includes: A waterproof adhesive strip, at least a portion of which is disposed within the second mounting groove.

Images