Photovoltaic module and photovoltaic system

Abstract

The utility model discloses a photovoltaic assembly and a photovoltaic system, and the photovoltaic assembly comprises a frame assembly which is provided with a mounting part at one side and a fixing part at the other side; the bonding structure is arranged on the mounting part of the frame assembly; and the laminating piece is arranged on the bonding structure, a gap is formed between the laminating piece and the frame assembly, and the laminating piece is parallel to the mounting part of the frame assembly. According to the utility model, the laminated piece is directly bonded on the mounting part of the frame assembly, so that a clamping and fixing mode of a traditional frame assembly on the laminated piece is omitted, the usage amount of frame assembly materials is remarkably reduced, and the overall manufacturing cost of the photovoltaic assembly is reduced. The laminated part is completely arranged above the frame assembly, and a step-shaped dust collection area is not formed between the laminated part and the frame assembly, so that the problem that dust is easily collected at the joint of the frame assembly and the laminated part in a traditional structure is solved, water flow is smoother when washing the surface of the laminated part, residues of dust and dirt on the assembly are reduced, and the service life of the assembly is prolonged. Therefore, the hot spot effect is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic power generation technical field, concretely relates to a photovoltaic module and photovoltaic system. BACKGROUND

[0002] Roof photovoltaic technology involves installing solar photovoltaic systems on the roof of a building, and converting solar energy into electric energy by laying photovoltaic modules. Facade photovoltaic technology refers to applying photovoltaic power generation systems to the facade of a building and other vertical surfaces. However, current building facade photovoltaic technology is still in its infancy, and how to utilize sunlight on the facade of a building has become a more advanced development direction in the industry.

[0003] The current photovoltaic module laminates are usually directly clamped and fixed in the clamping groove of the frame assembly, which requires a large amount of frame assembly material. When the laminates are clamped and installed on the frame assembly, the frame assembly protrudes outward relative to the laminates, causing the junction between the frame assembly and the laminates to be prone to dust accumulation. In rainy weather or when the laminates are washed, the water flow will wash away the dust on the surface of the laminates, but the water flow will be hindered when passing through the junction between the frame assembly and the laminates, making it difficult to clean the dust at the junction. Long-term accumulation can cause hot spot effects in photovoltaic modules, affecting the power generation efficiency of photovoltaic modules.

[0004] In addition, in a photovoltaic system, two adjacent photovoltaic modules are connected and usually sealed with a sealing component. However, in order to improve the sealing effect of the sealing component, the sealing component usually protrudes above the surface of the frame assembly, causing the junction between the two adjacent photovoltaic modules to also be prone to dust accumulation, resulting in hot spot effects in photovoltaic modules and affecting the power generation efficiency of photovoltaic modules. SUMMARY

[0005] Therefore, the utility model provides a photovoltaic module and photovoltaic system to solve the problem of dust accumulation in current photovoltaic modules affecting the power generation efficiency of photovoltaic modules.

[0006] In a first aspect, the utility model provides a photovoltaic module, comprising:

[0007] a frame assembly, one side of the frame assembly is provided as a mounting portion, and the other side of the frame assembly is provided as a fixed portion;

[0008] an adhesive structure, the adhesive structure is provided on the mounting portion of the frame assembly;

[0009] a laminate, the laminate is provided on the adhesive structure, and the laminate has a spacing with the frame assembly.

[0010] The photovoltaic module has the beneficial effects that by directly bonding the laminated piece on the mounting portion of the frame assembly, the clamping and fixing mode of the laminated piece by the traditional frame assembly is omitted, the use amount of the frame assembly material is significantly reduced, and the overall manufacturing cost of the photovoltaic module is reduced.

[0011] Since the laminated piece and the frame assembly have the spacing, the laminated piece is completely arranged above the frame assembly, the outer surface of the photovoltaic module is the outer surface of the laminated piece after the laminated piece is completely installed, the outer surface of the photovoltaic module is more flat, no step-shaped dust collecting area is formed between the laminated piece and the frame assembly, the problem that the frame assembly and the laminated piece are prone to dust collecting at the joint is avoided, the water flow is more smooth when washing the surface of the laminated piece, the dust and dirt remaining on the module are reduced, and the occurrence of the hot spot effect is effectively prevented. Since the dust accumulation and the occurrence of the hot spot effect are reduced, the photovoltaic module can keep high photoelectric conversion efficiency for a long time, the service life of the photovoltaic module is prolonged, and the overall power generation efficiency is improved.

[0012] The parallel design between the laminated piece and the frame assembly makes the overall appearance of the photovoltaic module more simple and beautiful, and meanwhile, the visual interference problem caused by the protrusion of the traditional frame assembly is avoided.

[0013] The introduction of the bonding structure not only realizes the firm connection of the laminated piece and the frame assembly, but also enhances the structural stability of the entire photovoltaic module. Compared with the traditional clamping and fixing mode, the bonding mode can better adapt to various complex working environments and reduce the risk of loosening caused by vibration or external force.

[0014] In an optional embodiment, the frame assembly comprises a plurality of frame pieces connected in a head-to-tail mode, and two adjacent frame pieces are connected through a corner connecting piece.

[0015] In an optional embodiment, the frame piece comprises a first support plate, a second support plate, an outer connecting plate and an inner connecting plate.

[0016] The top end of the first support plate is a mounting portion, and the first support plate and the second support plate have a spacing and are parallel to each other.

[0017] The outer connecting plate and the inner connecting plate are respectively arranged between the second support plate and the first support plate and surround the second support plate and the first support plate to form a corner connecting piece cavity.

[0018] One end of the first support plate and the second support plate extends outward relative to the outer connecting plate and forms a pressing block mounting cavity with the outer connecting plate, and the pressing block mounting cavity is a fixed portion.

[0019] The technical scheme has the beneficial effects that two adjacent frame pieces are connected through the corner connecting piece, and the corner connecting piece is positioned in the corner connecting piece cavity, so that the overall connection stability of the frame assembly is enhanced.

[0020] In an alternative embodiment, a limiting rib is arranged on the top end of the first support plate near the inner side position, and the limiting rib is suitable for limiting the position of the bonding structure.

[0021] In an alternative embodiment, a plurality of fixing ribs are arranged on the inner wall of the corner fitting cavity, and the fixing ribs are used to prevent the profile from being scratched or other adverse conditions due to the assembly of the corner fitting.

[0022] In an alternative embodiment, the frame is trapezoidal, and two adjacent frames can be spliced into an L-shaped frame body; the corner fitting is L-shaped, and the two ends of the corner fitting are inserted into the corner fitting cavities of the two adjacent frames, so that the corner fitting is hidden in the two adjacent frames.

[0023] The beneficial effects of the above technical solution are that the corner fitting can be completely hidden inside the two adjacent frames, which significantly improves the compactness of the overall structure, reduces the external protruding part, and makes the appearance of the photovoltaic module more simple and beautiful. Since the corner fitting is hidden inside the frame, the exposed area of the external joint is reduced, thereby reducing the risk of rainwater penetration and improving the waterproof performance of the photovoltaic module.

[0024] In an alternative embodiment, the bonding structure comprises:

[0025] a double-sided tape arranged between the frame assembly and the laminated piece;

[0026] a silicone structural adhesive layer arranged between the frame assembly and the laminated piece, and the silicone structural adhesive layer is located at the periphery of the double-sided tape.

[0027] The beneficial effects of the above technical solution are that the bonding structure adopts the design of combining the double-sided tape with the silicone structural adhesive layer, which can provide double bonding protection. The double-sided tape is responsible for preliminary fixation, ensuring quick positioning and preliminary connection between the frame assembly and the laminated piece; and the silicone structural adhesive layer is located at the periphery, further enhancing the bonding strength and reliability, and forming a stable connection inside and outside.

[0028] In a second aspect, the utility model provides a photovoltaic system, comprising:

[0029] a keel;

[0030] at least two photovoltaic modules;

[0031] at least one mounting assembly, the mounting assembly is suitable for mounting the fixing part of two adjacent photovoltaic modules to the keel;

[0032] A sealing layer adapted to seal two adjacent photovoltaic modules, the sealing layer not protruding from the laminate of the photovoltaic module.

[0033] The sealing layer does not protrude from the laminate of the photovoltaic module, so that when the photovoltaic module is washed, the water flow is not blocked, and the water flow can fully wash each photovoltaic module, thereby eliminating the problem of easy dust accumulation in the traditional design.

[0034] In an alternative embodiment, the mounting assembly comprises:

[0035] A pressing block is hidden in the space surrounded by the keel between two adjacent photovoltaic modules, the pressing block has two positioning portions and an abutting portion between the two positioning portions, the two positioning portions of the pressing block are arranged in the pressing block mounting cavities of the two adjacent photovoltaic modules respectively, and the abutting portion of the pressing block passes between the frame assemblies of the two adjacent photovoltaic modules and abuts against the keel.

[0036] A locking piece passes through the pressing block and positions the pressing block on the keel.

[0037] A support rod is arranged between the pressing block and the sealing layer.

[0038] In an alternative embodiment, the end of the sealing layer opposite to the support rod is recessed.

[0039] In summary, the technical scheme of the utility model has the following advantages:

[0040] 1. Dust is not easy to accumulate. In the photovoltaic module, the laminate is completely arranged above the frame assembly, and no step-shaped dust accumulation area is formed between the laminate and the frame assembly, thereby avoiding the problem that the intersection of the frame assembly and the laminate in the traditional structure is easy to accumulate dust, making the water flow more smooth when washing the surface of the laminate, reducing the residual dust and dirt on the module, thereby effectively preventing the occurrence of hot spot effect.

[0041] In the photovoltaic system, the sealing layer does not protrude from the laminate of the photovoltaic module, so that when the photovoltaic module is washed, the water flow is not blocked, and the water flow can fully wash each photovoltaic module, thereby eliminating the problem of easy dust accumulation in the traditional design.

[0042] 2. Good appearance. The frame and the pressing block are not exposed after installation, only the sealing layer filling the gap between the photovoltaic modules is exposed, and the overall effect is good.

[0043] 3. Structural safety. The frame is connected by corner connectors and adhered by four-side structural adhesive; the photovoltaic module is fixed with the keel by four-side pressing block, and the structure is reliable.

[0044] 4. Low cost. The laminated component is the same as the conventional crystalline silicon module, and the laminated component production line is common with the conventional module production line, so that the production line switching can be completed only by small-scale equipment modification, and the modules can be quickly supplied.

[0045] 5. High economic benefit. The system is a new type of building facade decoration photovoltaic solution, which combines the hidden frame and the photovoltaic laminated component, fully utilizes the sunlight resource of the vertical facade of the building, realizes the value of renewable energy utilization, and creates economic benefit. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical scheme in the specific embodiment of the utility model or the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0047] Figure 1 The structural schematic diagram of the photovoltaic module provided by the utility model is shown.

[0048] Figure 2 The exploded view of the photovoltaic module provided by the utility model is shown.

[0049] Figure 3 The partial structural schematic diagram of the photovoltaic module provided by the utility model is shown.

[0050] Figure 4 The structural schematic diagram of the frame in the photovoltaic module provided by the utility model is shown.

[0051] Figure 5 The structural schematic diagram of two frames in the photovoltaic module provided by the utility model when the two frames are connected by corner connectors is shown.

[0052] Figure 6 The partial structural schematic diagram of the photovoltaic system provided by the utility model is shown.

[0053] BRIEF DESCRIPTION OF DRAWINGS

[0054] 1. Frame assembly, 11. Frame, 12. Corner connector, 121. Friction protrusion, 14. Mounting portion, 15. Fixing portion, 101. First support plate, 102. Second support plate, 103. Outer connecting plate, 104. Inner connecting plate, 105. Limiting rib, 106. Corner connector cavity, 107. Fixing rib, 108. Pressing block mounting cavity;

[0055] 2. Adhesive structure, 21. Double-sided tape, 22. Silicone structural adhesive layer;

[0056] 3. Laminate;

[0057] 4. Pressed block, 41. Positioning portion, 42. Abutting portion;

[0058] 5. Sealing layer;

[0059] 6. Support rod;

[0060] 7. Locking piece;

[0061] 8. Keel. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0063] According to the embodiments of the present application, in a first aspect, a photovoltaic module is provided, in combination with Figures 1 to 5 As shown in the drawings, it comprises a frame assembly 1, an adhesive structure 2 and a laminate 3. One side of the frame assembly 1 is provided as a mounting portion 14, and the other side of the frame assembly 1 is provided as a fixed portion 15. The adhesive structure 2 is arranged on the mounting portion 14 of the frame assembly 1. The laminate 3 is arranged on the adhesive structure 2, and the laminate 3 has a spacing with the frame assembly 1 and is parallel to the mounting portion 14 of the frame assembly 1.

[0064] The above photovoltaic module directly bonds the laminate 3 on the mounting portion 14 of the frame assembly 1, eliminates the clamping and fixing mode of the traditional frame assembly to the laminate, significantly reduces the amount of frame assembly material used, and reduces the overall manufacturing cost of the photovoltaic module.

[0065] Since there is a gap between the laminated glass 3 and the frame assembly 1, the laminated glass is completely arranged above the frame assembly, the laminated glass and the frame assembly are respectively located in different planes, and the laminated glass 3 is parallel to the mounting portion 14 of the frame assembly 1. After the laminated glass is completely installed, the outer surface of the photovoltaic assembly is the outer surface of the laminated glass, the outer surface of the photovoltaic assembly is more flat, no step-shaped dust collecting area is formed between the laminated glass and the frame assembly, the problem that dust is easily collected at the joint between the frame assembly and the laminated glass in the traditional structure is avoided, the water flow is more smooth when washing the surface of the laminated glass 3, the residual dust and dirt on the assembly are reduced, and the occurrence of hot spot effect is effectively prevented. Because the dust accumulation and the occurrence of hot spot effect are reduced, the photovoltaic assembly can ensure a relatively high photoelectric conversion efficiency for a long time, prolong the service life of the photovoltaic assembly, and further improve the overall power generation efficiency.

[0066] The parallel design between the laminated glass 3 and the frame assembly 1 makes the overall appearance of the photovoltaic assembly more simple and beautiful, and avoids the visual interference problem caused by the protrusion of the traditional frame assembly.

[0067] The introduction of the bonding structure 2 not only realizes the firm connection between the laminated glass 3 and the frame assembly 1, but also enhances the structural stability of the entire photovoltaic assembly. Compared with the traditional clamping fixing mode, the bonding mode can better adapt to various complex working environments and reduce the risk of loosening caused by vibration or external force.

[0068] In some embodiments, the frame assembly 1 includes a plurality of frames 11 connected in head-to-tail, and two adjacent frames 11 are connected through corner connectors 12. More specifically, the two adjacent frames 11 can be divided into long frames and short frames, and the long frames and the short frames are connected and fixed through the corner connectors.

[0069] The corner connector can be made of aluminum alloy or composite material. The frame assembly 1 is composed of a plurality of frames 11 connected in head-to-tail, and each frame 11 can be produced and maintained as an independent module. If a module fails, it only needs to be replaced or repaired individually, without affecting the functions of other parts, greatly reducing the maintenance cost and time.

[0070] The frame 11 comprises a first support plate 101, a second support plate 102, an outer connecting plate 103 and an inner connecting plate 104. The top end of the first support plate 101 is the mounting portion 14. The first support plate 101 and the second support plate 102 are parallel to each other with a spacing therebetween. The outer connecting plate 103 and the inner connecting plate 104 are arranged between the second support plate 102 and the first support plate 101 and form a corner connector cavity 106 together with the second support plate 102 and the first support plate 101. The corner connector cavity 106 makes full use of the space inside the frame and effectively positions the corner connector 12. The first support plate 101 and the second support plate 102 extend outwardly at one end relative to the outer connecting plate 103 and form a pressing block mounting cavity 108 with the outer connecting plate 103. The pressing block mounting cavity 108 is the fixing portion 15, which makes the installation of the pressing block more convenient. No additional fixing tools or complex operations are required for quick assembly, which improves production efficiency and reduces manufacturing cost.

[0071] In the present embodiment, the adjacent two frames 11 are connected by the corner connector 12, and the corner connector 12 is positioned by the corner connector cavity 106, which enhances the overall connection stability of the frame assembly 1.

[0072] In some embodiments, the first support plate 101 is provided with a limiting rib 105 near the inner side of the top end. The limiting rib 105 is suitable for limiting the position of the bonding structure 2. The limiting rib 105 can accurately limit the position of the double-sided tape 21 in the bonding structure 2, ensure the accuracy of the installation position of the bonding structure 2, and ensure the firm connection between the laminated piece 3 and the frame assembly 1.

[0073] In some embodiments, a plurality of fixing ribs 107 are arranged on the inner wall of the corner connector cavity 106. The fixing ribs 107 prevent the profile from being scratched during assembly of the corner connector. The distribution of the plurality of fixing ribs 107 provides a more accurate positioning reference for the corner connector 12, ensures the firm positioning of the corner connector 12 in the cavity, and improves the overall connection strength of the frame assembly 1.

[0074] In some embodiments, a plurality of friction protrusions 121 are arranged on the wall surface of the corner connector 12, which makes the connection between the corner connector 12 and the inner wall of the corner connector cavity 106 more tight.

[0075] In some embodiments, the frame 11 is trapezoidal, and two adjacent frames 11 can be spliced into an L-shaped frame; the corner fitting 12 is L-shaped, and two ends of the corner fitting 12 are respectively inserted into the corner fitting cavities 106 of the two adjacent frames 11, so that the corner fitting 12 is hidden in the two adjacent frames 11. The L-shaped design of the corner fitting 12 and the insertion of the two ends of the corner fitting 12 into the corner fitting cavities 106 of the two adjacent frames 11 enable the corner fitting 12 to be completely hidden inside the two adjacent frames 11, which significantly improves the compactness of the overall structure, reduces the external protruding part, and makes the appearance of the photovoltaic module more simple and beautiful. Since the corner fitting 12 is hidden inside the frame 11, the exposed area of the external joint is reduced, thereby reducing the risk of rainwater penetration and improving the waterproof performance of the photovoltaic module.

[0076] In some embodiments, the bonding structure 2 includes a double-sided tape 21 and a silicone structural adhesive layer 22. The double-sided tape 21 is arranged between the frame assembly 1 and the laminated piece 3. The silicone structural adhesive layer 22 is arranged between the frame assembly 1 and the laminated piece 3, and the silicone structural adhesive layer 22 is located at the periphery of the double-sided tape 21. The silicone structural adhesive layer 22 is used for bonding between the laminated piece 3 and the hidden frame.

[0077] In the present embodiment, the double-sided tape 21 is used to limit the amount of silicone weather-resistant structural adhesive added, prevent the silicone structural adhesive from overflowing the hidden frame, and affect the laminated piece; the double-sided tape 21 plays a temporary fixing role before the silicone structural adhesive is cured; the double-sided tape 21 can control the thickness of the structural adhesive and control the quality.

[0078] The bonding structure 2 adopts the design of combining the double-sided tape 21 and the silicone structural adhesive layer 22, which can provide double bonding protection. The double-sided tape 21 is responsible for preliminary fixing, ensuring rapid positioning and preliminary connection between the frame assembly 1 and the laminated piece 3; and the silicone structural adhesive layer 22 is located at the periphery, further enhancing the bonding strength and reliability, and forming a stable connection inside and outside. The silicone structural adhesive layer 22 has excellent bonding performance and anti-aging ability, and can effectively resist the influence of external environment such as temperature change and humidity change. By arranging it at the periphery of the double-sided tape 21, the bonding area can be expanded, thereby significantly improving the bonding strength between the frame assembly 1 and the laminated piece 3.

[0079] According to the embodiments of the present application, in a second aspect, a photovoltaic system is provided, which is combined with Figures 1 to 6 As shown in the figure, it comprises a keel 8, a photovoltaic module, a mounting assembly and a sealing layer 5. The photovoltaic module is provided with at least two. The mounting assembly is provided with at least one, and the mounting assembly is suitable for mounting the fixing part 15 of the two adjacent photovoltaic modules to the keel 8. The sealing layer 5 is suitable for sealing the two adjacent photovoltaic modules, and the sealing layer 5 does not protrude from the laminated piece 3 of the photovoltaic module.

[0080] The photovoltaic system has the functions of facade decoration and photovoltaic power generation, improves the overall aesthetic appearance, and ensures the safety of the whole assembly through the connection mode of introducing structural glue.

[0081] The sealing layer 5 seals the two adjacent photovoltaic assemblies, and the sealing layer 5 does not protrude from the surface of the laminated member 3 of the photovoltaic assembly, which can significantly improve the sealing performance, effectively prevent external dust and moisture from entering the assembly, and avoid problems caused by poor sealing. The sealing layer 5 does not protrude from the surface of the laminated member 3 of the photovoltaic assembly, and thus when the photovoltaic assembly is washed, the water flow will not be blocked, and the water flow can fully wash each photovoltaic assembly, thereby eliminating the problem of easy dust accumulation in the traditional design. This improvement can effectively reduce the dust accumulation at the junction of the photovoltaic assembly, reduce the probability of hot spot effect, and thus improve the power generation efficiency of the photovoltaic assembly.

[0082] In addition, the design of the sealing layer 5 makes the junction of the photovoltaic assembly more flat, the overall appearance more simple and beautiful, and the visual effect of the product improved.

[0083] The mounting assembly can firmly mount the fixing part 15 of the two adjacent photovoltaic assemblies to the keel 8, ensuring the stability and reliability of the entire photovoltaic system. In combination with the sealing layer 5, the adaptability of the photovoltaic assembly in various working environments is further enhanced.

[0084] In some embodiments, the mounting assembly includes a pressing block 4, a locking piece 7, and a support rod 6.

[0085] The locking piece 7 passes through the pressing block 4 and positions the pressing block 4 on the keel 8. More specifically, the locking piece 7 is a self-tapping screw that can quickly fix the pressing block 4 to the keel 8.

[0086] The support rod 6 is arranged between the pressing block 4 and the sealing layer 5, and the support rod 6 supports the sealing layer 5. The support rod 6 can be a foam rod or other material, which can be selected flexibly according to actual needs to ensure that the sealing layer 5 can maintain good shape and sealing performance when subjected to external pressure.

[0087] The pressing block 4 has two positioning parts 41 and an abutting part 42 between the two positioning parts 41. The two positioning parts 41 of the pressing block 4 are arranged in the pressing block mounting cavities 108 of the two adjacent photovoltaic assemblies, respectively, which can ensure the accurate position of the pressing block 4 and avoid position deviation caused by external vibration or load. The abutting part 42 of the pressing block 4 passes between the frame assemblies 1 of the two adjacent photovoltaic assemblies and abuts against the keel 8. More specifically, the positioning part 41 and the abutting part 42 are protrusions arranged on the pressing block body.

[0088] The conventional photovoltaic module frame is exposed, and is usually fixed on the keel by exposed pressing blocks, which is not beautiful and cannot meet the appearance requirements of the building facade when applied in the scene with appearance requirements, such as the building facade. In order to fully exert the decoration and economy of the photovoltaic on the facade, the pressing blocks 4 are hidden in the space surrounded by the adjacent two photovoltaic modules and the keel 8 in the embodiment. In this way, only the photovoltaic module itself and the frame assembly 1 can be observed from the outside, and the installation assembly such as the pressing block 4 is completely hidden, so that the appearance of the whole photovoltaic system is more neat and beautiful, and the integration with the building facade is higher. At the same time, the hidden installation mode also reduces the erosion of the external environment on the installation assembly such as the pressing block 4, prolongs the service life of the whole photovoltaic system.

[0089] In some embodiments, the end of the sealing layer 5 opposite to the support rod 6 is provided in a recessed shape, which can reduce the amount of material used while ensuring sealing performance, and increase the overall beauty of the photovoltaic system.

[0090] In some embodiments, the sealing layer 5 is a sealing glue layer. The sealing glue layer has good adhesion and sealing performance, can effectively prevent external impurities such as moisture and dust from entering the inside of the photovoltaic module, and protect the photovoltaic module from damage. At the same time, the sealing glue layer also has a certain elasticity, which can buffer the vibration and impact of the photovoltaic module during installation and use, and improve the stability and durability of the photovoltaic module. In addition, the sealing glue layer can be coated according to actual needs, and is flexible to adapt to photovoltaic modules of different shapes and sizes, so that the sealing performance of the whole photovoltaic system is more reliable.

[0091] The specific installation steps of the above photovoltaic system are as follows:

[0092] Firstly, the hidden long and short frames are connected and fixed by using the corner connector to form a complete frame.

[0093] Then, the double-sided tape 21 is pasted at the predetermined position of the hidden frame to ensure that it is tightly attached and the outer edges are aligned.

[0094] Then, the silicone structural adhesive is injected at the gap between the laminated part 3 and the whole frame formed by the double-sided tape 21, and it is waited for complete curing.

[0095] Finally, the photovoltaic module is fixed firmly on the keel 8 by using the pressing block 4.

[0096] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A photovoltaic module, characterized by, It comprises: a frame assembly (1), one side of which is provided as a mounting portion (14), and the other side of which is provided as a fixing portion (15); an adhesive structure (2) provided on the mounting portion (14) of the frame assembly (1); a laminated piece (3) provided on the adhesive structure (2), and having a spacing with the frame assembly (1).

2. The photovoltaic module of claim 1, wherein, The frame assembly (1) comprises a plurality of frame pieces (11) connected end to end, and two adjacent frame pieces (11) are connected by a corner connecting piece (12).

3. The photovoltaic module of claim 2, wherein, The frame piece (11) comprises a first support plate (101), a second support plate (102), an outer connecting plate (103), and an inner connecting plate (104). The top end of the first support plate (101) is the mounting portion (14), and the first support plate (101) and the second support plate (102) are parallel to each other and have a spacing therebetween. The outer connecting plate (103) and the inner connecting plate (104) are respectively arranged between the second support plate (102) and the first support plate (101) and surround the second support plate (102) and the first support plate (101) to form a corner connecting piece cavity (106). One end of the first support plate (101) and the second support plate (102) extends outward relative to the outer connecting plate (103) and forms a pressing block mounting cavity (108) with the outer connecting plate (103), and the pressing block mounting cavity (108) is the fixing portion (15).

4. The photovoltaic module of claim 3, wherein, The first support plate (101) is provided with a limiting rib (105) near the inner side of the top end, and the limiting rib (105) is suitable for limiting the position of the adhesive structure (2).

5. The photovoltaic module of claim 3, wherein, A plurality of fixing ribs (107) are arranged on the inner wall of the corner connecting piece cavity (106).

6. The photovoltaic module of claim 3, wherein, The frame piece (11) is trapezoidal, and two adjacent frame pieces (11) can be spliced into an L-shaped frame body; the corner connecting piece (12) is L-shaped, and two ends of the corner connecting piece (12) are respectively inserted into the corner connecting piece cavities (106) of two adjacent frame pieces (11) to hide the corner connecting piece (12) in the two adjacent frame pieces (11).

7. The photovoltaic module according to any of claims 1-6, characterized in that, The adhesive structure (2) comprises: a double-sided tape (21) arranged between the frame assembly (1) and the laminated piece (3); a silicone structural adhesive layer (22) arranged between the frame assembly (1) and the laminated piece (3), and the silicone structural adhesive layer (22) is located at the periphery of the double-sided tape (21).

8. A photovoltaic system characterized by, It comprises: a keel (8); at least two photovoltaic assemblies according to any one of claims 1-7; at least one mounting assembly suitable for mounting the fixing portions (15) of two adjacent photovoltaic assemblies to the keel (8); a sealing layer (5) suitable for sealing two adjacent photovoltaic assemblies, and the sealing layer (5) does not protrude from the laminated piece (3) of the photovoltaic assembly.

9. The photovoltaic system of claim 8, wherein, The mounting assembly comprises: The pressing block (4) is arranged in the space surrounded by the adjacent two photovoltaic modules and the keel (8), and has two positioning portions (41) and an abutting portion (42) between the two positioning portions (41). The two positioning portions (41) of the pressing block (4) are arranged in the pressing block mounting cavities (108) of the adjacent two photovoltaic modules respectively. The abutting portion (42) of the pressing block (4) passes between the frame assemblies (1) of the adjacent two photovoltaic modules and abuts against the keel (8). The locking member (7) passes through the pressing block (4) and positions the pressing block (4) on the keel (8). The support rod (6) is arranged between the pressing block (4) and the sealing layer (5).

10. The photovoltaic system of claim 9, wherein, The end of the sealing layer (5) opposite to the support rod (6) is arranged in a recessed shape.

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