Flexible photovoltaic assembly

Abstract

Disclosed in the present application is a flexible photovoltaic assembly, which comprises a photovoltaic module, the photovoltaic module comprising a mounting frame and a flexible photovoltaic panel. The mounting frame is formed having a stepped hole extending vertically, and a relatively upper end of the stepped hole along a vertical direction is configured as a large-diameter hole; an outer edge of the flexible photovoltaic panel is fixed in the large-diameter hole by means of a first sealing adhesive; a small-diameter hole of the stepped hole is provided with a reinforcing rib, and the reinforcing rib is fixed to a relatively lower end surface of the flexible photovoltaic panel along the vertical direction by means of a second sealing adhesive. The present application can enhance the flatness of the flexible photovoltaic panel mounted in the mounting frame, effectively preventing the problem of gradual deformation and bending of the flexible photovoltaic panel, which could lead to hidden cracks after long-term outdoor operation of the flexible photovoltaic assembly.

Description

Flexible photovoltaic module

[0001] The present application claims priority to the Chinese patent application No. 202411271490.9, filed on September 11, 2024, and entitled "Flexible photovoltaic module", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of photovoltaic products, in particular to a flexible photovoltaic module. BACKGROUND

[0003] With the development of photovoltaic technology, the development technology of crystalline silicon cells is becoming more and more mature, and the slicing is becoming thinner, which has better mechanical properties and can withstand a certain degree of deformation without hidden cracks and other damage, and can be used in flexible or semi-flexible photovoltaic modules. Flexible and lightweight photovoltaic modules are becoming more and more popular in the photovoltaic market due to their advantages of resistance to deformation, not easy to break, light weight, etc.

[0004] However, the existing flexible photovoltaic modules are mostly high molecular material front and back plates, which are flexible but easy to deform, and the overall flatness after assembly is not good, and the wind load resistance is weak. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to overcome the defects of the prior art that the flexible photovoltaic module is easy to deform, resulting in poor overall flatness after assembly, and weak wind load resistance, thereby providing a flexible photovoltaic module.

[0006] According to the flexible photovoltaic module provided by the present application, the photovoltaic module comprises:

[0007] The mounting frame is provided with a stepped hole formed through in the vertical direction, and the opposite upper end of the stepped hole in the vertical direction is provided as a large-diameter hole;

[0008] The flexible photovoltaic plate is glued and fixed to the large-diameter hole through the first sealing adhesive;

[0009] The reinforcing rib is arranged in the mounting frame and is glued and fixed to the opposite lower end surface of the flexible photovoltaic plate in the vertical direction through the second sealing adhesive.

[0010] According to the flexible photovoltaic module provided by the present application, at least the following technical effects are achieved:

[0011] The outer edge of the flexible photovoltaic panel is fixed to the large-diameter hole by the first sealing adhesive, so that the mounting frame stretches and adhesively fixes the outer edge of the flexible photovoltaic panel, ensuring the flatness of the flexible photovoltaic panel installed in the mounting frame; meanwhile, the reinforcing rib is adhesively fixed to the lower end surface of the flexible photovoltaic panel, and the reinforcing rib supports the flexible photovoltaic panel, which can not only strengthen the flatness of the flexible photovoltaic panel installed in the mounting frame, effectively avoid the problem that the flexible photovoltaic panel slowly deforms and bends to cause hidden cracks after the flexible photovoltaic module works outdoors for a long time, and ensure that the flexible photovoltaic module is resistant to deformation and is not easy to be damaged; but also can improve the wind load capacity of the flexible photovoltaic module, and can be long-term applied to the scene with large wind pressure such as coastal area.

[0012] Optionally, the inner bottom wall of the large-diameter hole is concave with a first filling groove, and a clamping area between the first filling groove and the flexible photovoltaic panel forms a first filling cavity, and the first filling cavity is used to fill the first sealing adhesive.

[0013] Optionally, a separation part is convex in the first filling groove, the separation part is used to separate the first filling groove into a first groove and a second groove, and the separation part abuts against the lower end surface of the flexible photovoltaic panel.

[0014] Optionally, the first groove is located on the side of the second groove outward, an upper end of the surrounding wall of the first groove away from the second groove is provided as an arc-shaped part, and the arc-shaped part abuts against the upper end of the lateral wall of the flexible photovoltaic panel.

[0015] Optionally, the reinforcing rib is concave with a second filling groove toward the end surface of the flexible photovoltaic panel, a clamping area between the second filling groove and the flexible photovoltaic panel forms a second filling cavity, and the second filling cavity is used to fill the second sealing adhesive.

[0016] And / or, the flexible photovoltaic panel comprises a high-molecular back plate, a first adhesive film is arranged on the upper end of the high-molecular back plate in the vertical direction, a photovoltaic cell piece is arranged on the end surface of the high-molecular back plate away from the first adhesive film, a second adhesive film is arranged on the end surface of the photovoltaic cell piece away from the first adhesive film, and a high-molecular front plate is arranged on the end surface of the photovoltaic cell piece away from the second adhesive film.

[0017] Optionally, the reinforcing rib is detachably connected to the mounting frame.

[0018] Optionally, screw holes are respectively arranged on the two end surfaces of the reinforcing rib along the length direction of the reinforcing rib, the screw holes are used to screw fastening screws, first through holes are formed in the mounting frame corresponding to the positions of the screw holes, and the first through holes are used for the rod parts of the fastening screws to pass through.

[0019] Optionally, a plurality of binding holes are arranged on the mounting frame along a cross section profile of the mounting frame perpendicular to the vertical direction, each of the binding holes penetrates the mounting frame along the vertical direction and is used for the binding to pass through;

[0020] Optionally, a height position of an upper end surface of the mounting frame along the vertical direction is not higher than a height position of an upper end surface of the flexible photovoltaic panel along the vertical direction.

[0021] Optionally, the roof-mounted ridge is further included for mounting on a roof, a plurality of photovoltaic modules are arranged, and the plurality of photovoltaic modules are sequentially arranged on the ridge along a first horizontal direction; a first connecting table is protruded on one side of the mounting frame along the first horizontal direction, and a second connecting table is protruded on the other side of the mounting frame along the first horizontal direction, the first horizontal direction and the vertical direction are perpendicular to each other; the first connecting table of the photovoltaic module and the second connecting table of the adjacent photovoltaic module are abutted and compressed by a pressing block, and the pressing block is connected to the ridge by a first bolt assembly.

[0022] Optionally, an end of the first connecting table away from the mounting frame is upwardly folded to form a first limiting part, the first limiting part and the first connecting table enclose a first L-shaped groove, and an end of the pressing block along the first horizontal direction towards the first connecting table is clamped in the first L-shaped groove;

[0023] Optionally, an end of the second connecting table away from the mounting frame is upwardly folded to form a second limiting part, the second limiting part and the second connecting table enclose a second L-shaped groove, and an end of the pressing block along the first horizontal direction towards the second connecting table is clamped in the second L-shaped groove;

[0024] Optionally, the first bolt assembly includes a matched first bolt and a first nut, a second through hole is formed on the ridge along the vertical direction, a third through hole is formed on the pressing block at a position corresponding to the second through hole along the vertical direction, and the second through hole and the third through hole are used for the rod of the first bolt to pass through;

[0025] Optionally, a separation preventing and pressing part is arranged between two adjacent photovoltaic modules, and a projection of one end of two adjacent flexible photovoltaic panels along the first horizontal direction towards each other falls within a range of the separation preventing and pressing part along the vertical direction; the separation preventing and pressing part is connected to the ridge by the first bolt assembly.

[0026] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0028] Fig. 1 is a schematic structural view of a cross section of a photovoltaic module in a flexible photovoltaic assembly according to the present embodiment;

[0029] Fig. 2 is a schematic structural view of an enlarged structure at A in Fig. 1;

[0030] Fig. 3 is a schematic structural view of a cross section of a photovoltaic module in a flexible photovoltaic assembly according to the present embodiment;

[0031] Fig. 4 is a schematic structural view of a bottom view of a mounting frame in a flexible photovoltaic assembly according to the present embodiment;

[0032] Fig. 5 is a schematic structural view of a side view of a first connecting part in a flexible photovoltaic assembly according to the present embodiment;

[0033] Fig. 6 is a schematic structural view of a bottom view of Fig. 5;

[0034] Fig. 7 is a schematic structural view of a cross section of a first connecting part in a flexible photovoltaic assembly according to the present embodiment;

[0035] Fig. 8 is a schematic structural view of a bottom view of a second connecting part in a flexible photovoltaic assembly according to the present embodiment;

[0036] Fig. 9 is a schematic structural view of a cross section of a side view of a second connecting part in a flexible photovoltaic assembly according to the present embodiment;

[0037] Fig. 10 is a schematic structural view of a side view of a reinforcing rib in a flexible photovoltaic assembly according to the present embodiment;

[0038] Fig. 11 is a schematic structural view of an assembly structure of two photovoltaic modules and a keel according to the present embodiment;

[0039] Fig. 12 is an enlarged schematic view at B in Fig. 11.

[0040] Explanation of reference signs: 1-mounting frame, 11-step hole, 12-first sealing adhesive, 13-first filling groove, 131-separation part, 132-first groove, 1321-arc part, 133-second groove, 141-first through hole, 142-strap hole, 151-first connecting platform, 152-first limiting part, 153-first L-shaped groove, 161-second connecting platform, 162-second limiting part, 163-second L-shaped groove, 17-first connecting part, 171-first cavity, 18-second connecting part, 181-second cavity; 2-flexible photovoltaic panel; 3-reinforcing rib, 31-second sealing adhesive, 32-second filling groove, 33-screw hole, 34-fastening screw; 4-keel; 5-pressing block; 61-first bolt, 62-first nut; 7-anti-dropping pressing piece, 71-mounting part. DETAILED DESCRIPTION

[0041] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0045] Embodiment one

[0046] As shown in FIG. 1 to FIG. 10, a flexible photovoltaic module provided by the embodiment includes a photovoltaic module, the photovoltaic module includes a mounting frame 1 and a flexible photovoltaic panel 2, the mounting frame 1 is vertically formed with a stepped hole 11, the opposite upper end of the stepped hole 11 along the vertical direction is provided as a large-diameter hole; the outer edge of the flexible photovoltaic panel 2 is glued and fixed to the large-diameter hole by a first sealing adhesive 12; a reinforcing rib 3 is arranged in the small-diameter hole of the stepped hole 11, and the reinforcing rib 3 is glued and fixed to the opposite lower end surface of the flexible photovoltaic panel 2 by a second sealing adhesive 31. It can be understood that the first direction, the second direction and the vertical direction in the text refer to the first direction, the second direction and the vertical direction in FIG. 1 and FIG. 3, and the first direction, the second direction and the vertical direction are perpendicular to each other; the length direction of the reinforcing rib 3 in the text refers to the first direction.

[0047] The flexible photovoltaic module of the embodiment fixes the outer edge of the flexible photovoltaic panel 2 to the large-diameter hole by the first sealing adhesive 12, so that the mounting frame 1 stretches and glues the outer edge of the flexible photovoltaic panel 2, ensures the flatness of the flexible photovoltaic panel 2 installed in the mounting frame 1; at the same time, the reinforcing rib 3 is glued and fixed to the lower end surface of the flexible photovoltaic panel 2, the reinforcing rib 3 supports the flexible photovoltaic panel 2, which can not only strengthen the flatness of the flexible photovoltaic panel 2 installed in the mounting frame 1, effectively avoid the problem that the flexible photovoltaic panel 2 slowly deforms and bends to cause hidden cracks after the flexible photovoltaic module of the embodiment works outdoors for a long time, and ensure that the flexible photovoltaic module of the embodiment is resistant to deformation and is not easy to be damaged; but also can improve the wind load capacity of the flexible photovoltaic module of the embodiment, which can be applied to coastal areas and other places with high wind pressure for a long time.

[0048] It should be noted that the mounting frame 1 and the reinforcing rib 3 cooperate to protect the flexible photovoltaic panel 2 on the side and the bottom surface, so as to avoid hidden cracks caused by collision.

[0049] As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 7 and FIG. 9, optionally, the inner bottom wall of the large-diameter hole is concavely provided with a first filling groove 13, the clamping area between the first filling groove 13 and the flexible photovoltaic panel 2 forms a first filling cavity, and the first filling cavity is used for filling the first sealing adhesive 12. By adding the first filling groove 13, the use thickness of the first sealing adhesive 12 can be effectively increased, thereby increasing the bonding strength between the outer edge of the flexible photovoltaic panel 2 and the mounting frame 1, further strengthening the stretching effect on the outer edge of the flexible photovoltaic panel 2, ensuring the flatness of the flexible photovoltaic panel 2 installed in the mounting frame 1, and further more effectively avoiding the problem that the flexible photovoltaic panel 2 slowly deforms and bends to cause hidden cracks after the flexible photovoltaic module of the embodiment works outdoors for a long time.

[0050] As shown in FIG. 2, FIG. 7 and FIG. 9, optionally, a partition 131 is arranged in the first filling groove 13, the partition 131 is used to divide the first filling groove 13 into a first groove 132 and a second groove 133, and the partition 131 abuts against the lower end surface of the flexible photovoltaic panel 2. The partition 131 further increases the supporting effect on the lower end surface of the outer edge of the flexible photovoltaic panel 2, so that the deformation and indentation of the outer edge of the flexible photovoltaic panel 2 in the first filling groove 13 is avoided while the use thickness of the first sealing adhesive 12 is increased to meet the bonding strength.

[0051] As shown in FIG. 2, FIG. 7 and FIG. 9, optionally, the first groove 132 is located on the outward side of the second groove 133, and the upper end of the surrounding wall of the first groove 132 is arranged as an arc-shaped portion 1321, and the arc-shaped portion 1321 abuts against the upper end of the outer side wall of the flexible photovoltaic panel 2. The arc-shaped portion 1321 increases the thickness of the first sealing adhesive 12 between the first groove 132 and the outer side edge of the flexible photovoltaic panel 2, improves the bonding strength, and can also seal the outer side wall of the flexible photovoltaic panel 2 well, block the entry of water vapor, improve the aging resistance of the flexible photovoltaic panel 2, and increase the service life of the flexible photovoltaic module of the embodiment. It can be understood that the arc-shaped portion 1321 is arranged on the side surrounding wall of the large-diameter hole.

[0052] As shown in FIG. 3 and FIG. 10, optionally, the second filling groove 32 is arranged in the end surface of the reinforcing rib 3 facing the flexible photovoltaic panel 2, and the clamping area between the second filling groove 32 and the flexible photovoltaic panel 2 forms a second filling cavity, and the second filling cavity is used to fill the second sealing adhesive 31. The second filling groove 32 can effectively increase the use thickness of the second sealing adhesive 31, thereby increasing the bonding strength between the flexible photovoltaic panel 2 and the reinforcing rib 3, further strengthening the supporting effect on the flexible photovoltaic panel 2, and effectively avoiding the problem that the flexible photovoltaic panel 2 is slowly deformed and bent to cause hidden cracks after the flexible photovoltaic module of the embodiment works outdoors for a long time, and further improving the wind load resistance of the flexible photovoltaic module of the embodiment.

[0053] Specifically, the first sealing adhesive 12 and the second sealing adhesive 31 are both arranged as silicone sealing adhesive.

[0054] As shown in FIG. 4, FIG. 7 and FIG. 9, optionally, the mounting frame 1 comprises two first connecting parts 17 and two second connecting parts 18 which are detachably arranged, the two first connecting parts 17 are oppositely arranged along a first horizontal direction, the two second connecting parts 18 are oppositely arranged along a second horizontal direction, the two second connecting parts 18 and the two first connecting parts 17 enclose the stepped hole 11; the first connecting part 17 and the adjacent second connecting part 18 are connected into one body through an L-shaped corner code, two ends of the first connecting part 17 along the second horizontal direction are respectively provided with a first cavity 171, the first cavity 171 is used for movably inserting a first horizontal part of the L-shaped corner code and is locked through a second bolt assembly; two ends of the second connecting part 18 along the first horizontal direction are respectively provided with a second cavity 181, the second cavity 181 is used for movably inserting a second horizontal part of the L-shaped corner code and is locked through a third bolt assembly. Compared with the prior art of integrally forming the mounting frame 1, the embodiment splits the mounting frame 1 into two first connecting parts 17 and two second connecting parts 18, and the adjacent first connecting part 17 and second connecting part 18 are connected into one body through the L-shaped corner code, which is convenient to prefabricate the first connecting part 17 and the second connecting part 18 in the processing factory and then assemble the mounting frame 1, so that the manufacturing process is simple and the processing cost is low; meanwhile, compared with the welding method for connecting the first connecting part 17 and the second connecting part 18, the embodiment detachably connects the first horizontal part and the second horizontal part of the L-shaped corner code with the first connecting part 17 and the second connecting part 18 through the second bolt assembly and the third bolt assembly, respectively, and each connection is bolted and fixed, which is convenient for ordinary people to complete the installation and use by means of common tools such as wrench, thereby reducing the difficulty of assembly.

[0055] Specifically, the second bolt assembly includes a matched second bolt and a second nut, the second nut is arranged on the first horizontal part of the L-shaped corner code, the first horizontal part of the L-shaped corner code is provided with a fifth through hole penetrating through the position corresponding to the second nut along the first horizontal direction, the outer side wall of the first connecting part 17 is provided with a sixth through hole penetrating through the position corresponding to the fifth through hole along the first horizontal direction, the sixth through hole communicates with the first cavity 171, and the fifth through hole and the sixth through hole are used for penetrating the rod part of the second bolt; the third bolt assembly includes a matched third bolt and a third nut, the third nut is arranged on the second horizontal part of the L-shaped corner code, the second horizontal part of the L-shaped corner code is provided with a seventh through hole penetrating through the position corresponding to the third nut along the second horizontal direction, the outer side wall of the second connecting part 18 is provided with an eighth through hole penetrating through the position corresponding to the seventh through hole along the second horizontal direction, the eighth through hole communicates with the second cavity 181, and the seventh through hole and the eighth through hole are used for penetrating the rod part of the third bolt. When the adjacent first connecting part 17 and the second connecting part 18 are assembled into one body, first, the first horizontal part of the L-shaped corner code is inserted into the first cavity 171 until the fifth through hole and the sixth through hole are aligned, then the rod part of the second bolt is penetrated through the fifth through hole and the sixth through hole and is screwed to the second nut, so that the fixed connection of the L-shaped corner code and the first connecting part 17 is completed; then the second cavity 181 of the second connecting part 18 is inserted into the second horizontal part of the L-shaped corner code until the seventh through hole and the eighth through hole are aligned, finally, the rod part of the third bolt is penetrated through the seventh through hole and the eighth through hole and is screwed to the third nut, so that the first connecting part 17 and the adjacent second connecting part 18 are fixedly connected into one body, the whole assembling process is simple to operate, and the L-shaped corner code is hidden in the first cavity 171 and the second cavity 181 and is not exposed, so that the same connecting effect of splicing and welding the first connecting part 17 and the second connecting part 18 into one body is achieved.

[0056] Specifically, the first connecting part 17 and the second connecting part 18 adopt the same profile material, so that the types of profile materials are reduced and the manufacturing cost of the flexible photovoltaic module is reduced.

[0057] Optionally, the reinforcing rib 3 is detachably connected to the mounting frame 1. In this way, on the one hand, when the reinforcing rib 3 is damaged, the reinforcing rib 3 can be detached for maintenance or replacement, thereby reducing the maintenance cost; on the other hand, different numbers of reinforcing ribs 3 can be flexibly installed in the mounting frame 1 according to actual use requirements, for example, one, two or three reinforcing ribs 3 can be selected and installed in the small-diameter hole of the stepped hole 11.

[0058] As shown in FIG. 1, FIG. 2 and FIG. 10, optionally, the reinforcing rib 3 is provided with a screw hole 33 at each end surface along the length direction of the reinforcing rib 3, the screw hole 33 is used for screwing a fastening screw 34, the mounting frame 1 is provided with a first through hole 141 corresponding to the position of the screw hole 33, the first through hole 141 is used for the rod of the fastening screw 34 to pass through. When the reinforcing rib 3 needs to be connected to the mounting frame 1, the screw hole 33 of the reinforcing rib 3 is only needed to be aligned with the first through hole 141, and then the fastening screw 34 is screwed into the screw hole 33 through the first through hole 141, so that the assembly is completed; when the reinforcing rib 3 needs to be detached from the mounting frame 1, the fastening screw 34 is only needed to be unscrewed from the screw hole 33, so that the detachment is realized, and the detachment process is simple. Specifically, the reinforcing rib 3 is arranged in parallel to the first horizontal direction, and the two ends of the reinforcing rib 3 are connected to the two first connecting parts 17 through the fastening screws 34, respectively.

[0059] The above technical solution is only one preferred embodiment of the detachable connection structure of the reinforcing rib 3 and the mounting frame 1, and as another alternative embodiment of the above technical solution, the reinforcing rib 3 is provided with a fourth nut at each end surface along the length direction of the reinforcing rib 3, the fourth nut is used for screwing a fourth bolt, and the mounting frame 1 is provided with a through hole corresponding to the position of the fourth nut, the through hole is used for the rod of the fourth bolt to pass through.

[0060] As shown in FIG. 4, optionally, a plurality of binding holes 142 are arranged on the mounting frame 1 along the cross-sectional profile of the mounting frame 1 perpendicular to the vertical direction, each of the binding holes 142 penetrates the mounting frame 1 along the vertical direction and is used for a binding to pass through. By passing the binding through the binding hole 142 and binding it to the balcony railing or fence railing, the flexible photovoltaic module of the embodiment is facilitated to be assembled on the fence or balcony for use, and the application scenarios are wider. As shown in FIG. 4, FIG. 6 and FIG. 8, specifically, three binding holes 142 are arranged on the first connecting part 17 along the second horizontal direction, and two binding holes 142 are arranged on the second connecting part 18 along the first horizontal direction.

[0061] Specifically, the binding is one of a stainless steel binding, a cloth binding and a high polymer binding.

[0062] Optionally, the height position of the upper end surface of the mounting frame 1 along the vertical direction is not higher than the height position of the upper end surface of the flexible photovoltaic panel 2 along the vertical direction. The mounting frame 1 forms an A-face-free frame structure, so that after the flexible photovoltaic panel 2 is assembled in the large-diameter hole of the mounting frame 1, the upper end surface of the flexible photovoltaic panel 2 is flush with the upper end surface of the mounting frame 1, thereby greatly improving the drainage and sewage capacity of the flexible photovoltaic panel 2, effectively avoiding the problems of hot spots, reduced power generation and the like caused by dust accumulation.

[0063] Optionally, the flexible photovoltaic panel 2 comprises a polymer backboard, a first adhesive film is arranged on the upper end of the polymer backboard in the vertical direction, a photovoltaic cell is arranged on the end face of the first adhesive film away from the polymer backboard, a second adhesive film is arranged on the end face of the photovoltaic cell away from the first adhesive film, and a polymer front plate is arranged on the end face of the second adhesive film away from the photovoltaic cell. The five-layer structure of the polymer backboard, the first adhesive film, the photovoltaic cell, the second adhesive film and the polymer front plate is formed into a stable whole through a lamination process, so as to improve the waterproof performance on the basis of the photovoltaic power generation function. The problem of rupture of the photovoltaic cell caused by direct impact of hard objects such as hail on the photovoltaic cell is avoided by covering the upper end face and the lower end face of the flexible photovoltaic panel 2 with the polymer front plate and the polymer back plate respectively, so as to greatly protect the internal photovoltaic cell.

[0064] Specifically, the mounting frame 1 is made of one of aluminum alloy, glass fiber polyurethane or engineering plastic, so that the flexible photovoltaic assembly of the embodiment is more lightweight. According to actual measurement, the weight of the flexible photovoltaic assembly of the embodiment per square meter is only 3±0.5 kg, which is easy to carry and install.

[0065] Specifically, the polymer front plate is provided as a fluorine film and a polyester multilayer composite structure. By providing the polymer front plate as a composite structure, the tensile strength of the polymer front plate can be further enhanced. As another alternative of the technical solution, the polymer front plate is made of a glass fiber reinforced structure and other polymer materials.

[0066] Specifically, the polymer back plate is provided as a fluorine film and a polyester multilayer composite structure. By providing the polymer back plate as a composite structure, the tensile strength of the polymer back plate can be further enhanced. As another alternative of the technical solution, the polymer back plate is made of a glass fiber reinforced structure and other polymer materials. More specifically, the polymer back plate can be subjected to coloring treatment, so that the color of the polymer back plate is white or black.

[0067] Specifically, the first adhesive film is made of one of EVA, POE, EPE and PVB.

[0068] Specifically, the second adhesive film is made of one of EVA, POE, EPE and PVB.

[0069] Specifically, the photovoltaic cell is provided as one of P-type, N-type, HJT-type or BC-type.

[0070] Embodiment two

[0071] As shown in FIG. 11 and FIG. 12, a flexible photovoltaic module provided in the embodiment includes a roof-mounted keel 4, a plurality of photovoltaic modules are arranged in sequence along the first horizontal direction on the keel 4; the mounting frame 1 is provided with a first connecting table 151 on one side of the first horizontal direction, and a second connecting table 161 on the other side; the first connecting table 151 of the photovoltaic module and the second connecting table 161 of the adjacent photovoltaic module are abutted and pressed by a pressing block 5, and the pressing block 5 is connected to the keel 4 by a first bolt assembly. When the flexible photovoltaic module of the embodiment needs to be installed on the roof, first, each photovoltaic module is laid in sequence along the first horizontal direction on the keel 4 of the roof at the specified position, and then the pressing block 5 is connected to the upper end surface of the keel 4 in the gap space between the adjacent two photovoltaic modules by the first bolt assembly, and the pressing block 5 is abutted and pressed to the first connecting table 151 of the photovoltaic module and the second connecting table 161 of the adjacent photovoltaic module, realizing the fixed connection of the adjacent two photovoltaic modules on the keel 4. During the entire assembly process, all the connections are bolted and fixed, which is convenient for ordinary household users to install and use on the roof of the courtyard with the help of common tools such as wrenches, without the need for professional construction team, which is conducive to large-area popularization and use.

[0072] As shown in FIG. 12, optionally, the first connecting table 151 is upwardly folded at one end away from the mounting frame 1 to form a first limiting portion 152, the first limiting portion 152 and the first connecting table 151 form a first L-shaped groove 153, and one end of the pressing block 5 away from the first connecting table 151 is clamped in the first L-shaped groove 153 along the first horizontal direction. The first L-shaped groove 153 limits the movement of the pressing block 5 relative to the first connecting table 151 along the first horizontal direction, effectively avoiding the disengagement of the mounting frame 1 and the pressing block 5, and ensuring the reliable connection of the photovoltaic module to the keel 4.

[0073] As shown in FIG. 12, optionally, the second connecting table 161 is upwardly folded at one end away from the mounting frame 1 to form a second limiting portion 162, the second limiting portion 162 and the second connecting table 161 form a second L-shaped groove 163, and one end of the pressing block 5 away from the second connecting table 161 is clamped in the second L-shaped groove 163 along the first horizontal direction. The second L-shaped groove 163 limits the movement of the pressing block 5 relative to the second connecting table 161 along the first horizontal direction, effectively avoiding the disengagement of the mounting frame 1 and the pressing block 5, and ensuring the reliable connection of the photovoltaic module to the keel 4.

[0074] As shown in FIG. 12, optionally, the first bolt assembly includes a matched first bolt 61 and a first nut 62, a second through hole is formed through the keel 4 in the vertical direction, a third through hole is formed through the pressing block 5 in the vertical direction at a position corresponding to the second through hole, and the second through hole and the third through hole are used for the rod of the first bolt 61 to pass through. In the process of installing the flexible photovoltaic module of the embodiment on the roof, first, two adjacent photovoltaic modules are placed on the keel 4 at a set position, then the pressing block 5 is abutted on the first connecting table 151 of the photovoltaic module and the second connecting table 161 of the adjacent photovoltaic module at two ends of the first horizontal direction respectively, and the second through hole and the third through hole are aligned, and then the rod of the first bolt 61 is sequentially passed through the second through hole and the third through hole and screwed with the first nut 62 until the first nut 62 is abutted on the upper end surface of the pressing block 5, so that the two ends of the pressing block 5 are pressed against the upper end surfaces of the first connecting table 151 and the second connecting table 161 respectively, realizing the connection and fixation of the two adjacent photovoltaic modules on the keel 4, and the whole installation process is simple. It should be noted that when the photovoltaic module needs to be disassembled or replaced, the first nut 62 only needs to be disassembled from the first bolt 61, and the photovoltaic module can be replaced, and after replacement, the first nut 62 is screwed on the first bolt 61 again to form a reliable connection, and the whole process does not need to violently disassemble the photovoltaic module, and the maintenance and replacement are more simple.

[0075] As shown in FIG. 12, optionally, a separation prevention pressing piece 7 is arranged between the two adjacent photovoltaic modules, and the projection part of one end of the two adjacent flexible photovoltaic panels 2 along the first horizontal direction towards each other falls within the range of the separation prevention pressing piece 7; the separation prevention pressing piece 7 is connected to the keel 4 through the first bolt assembly. After the two adjacent photovoltaic modules are pressed against the upper end surface of the keel 4 by the pressing block 5, the separation prevention pressing piece 7 is also connected to the keel 4 through the first bolt assembly, and at this time, the separation prevention pressing piece 7 is abutted and pressed against the part of the end surface of the two adjacent flexible photovoltaic panels 2 along the first horizontal direction towards each other, which additionally increases the mechanical fixing and pressing force applied to the flexible photovoltaic panel 2 to make the flexible photovoltaic panel 2 tightly adhere to the large-diameter hole, ensuring that even if the first sealing adhesive 12 between the flexible photovoltaic panel 2 and the large-diameter hole fails, the separation prevention pressing piece 7 can still fix the flexible photovoltaic panel 2; further strengthen the connection reliability of the flexible photovoltaic panel 2 and the installation frame 1, avoid falling off, further improve the wind load capacity of the flexible photovoltaic module of the embodiment, and be more suitable for coastal and other roof scenes with high wind pressure.

[0076] As shown in FIG. 12, optionally, the anti-escape pressing piece 7 is provided with a mounting portion 71 downwardly protruding corresponding to the position of the pressing block 5, and the mounting portion 71 abuts against the upper end surface of the pressing block 5; the mounting portion 71 is vertically penetrated by a fourth through hole corresponding to the position of the third through hole, and the fourth through hole is used for the rod portion of the first bolt 61 to pass through. In the process of installing the flexible photovoltaic module of the present embodiment on the roof, first, the adjacent two photovoltaic modules are placed on the set position on the keel 4, then the pressing block 5 is abutted against the first connecting table 151 of the photovoltaic module and the second connecting table 161 of the adjacent photovoltaic module along the two ends of the first horizontal direction respectively, and the second through hole and the third through hole are aligned, and then the mounting portion 71 is abutted against the upper end surface of the pressing block 5, at this time the anti-escape pressing piece 7 is abutted against the part of the end surface of the two adjacent flexible photovoltaic panels 2 facing each other along the first horizontal direction, and the fourth through hole and the third through hole are aligned, and finally the rod portion of the first bolt 61 is sequentially passed through the second through hole, the third through hole and the fourth through hole and screwed with the first nut 62 until the first nut 62 abuts against the upper end surface of the mounting portion 71, so that the two ends of the pressing block 5 are pressed against the upper end surfaces of the first connecting table 151 and the second connecting table 161 respectively and the two ends of the anti-escape pressing piece 7 are pressed against the part of the end surface of the two adjacent flexible photovoltaic panels 2 facing each other along the first horizontal direction, realizing the connection and fixation of the adjacent two photovoltaic modules on the keel 4, and the whole installation process is simple.

[0077] The specific construction and assembly process of the flexible photovoltaic module of the present embodiment on the building roof is as follows:

[0078] According to the number of photovoltaic modules in the flexible photovoltaic module, a corresponding number of photovoltaic modules are selected, and the plurality of photovoltaic modules are sequentially numbered as 1, 2, …, N-1, N along the first horizontal direction.

[0079] The keel 4 is laid on the building roof.

[0080] The adjacent two photovoltaic modules numbered 1 and 2 are placed on the set position on the keel 4, the pressing block 5 is abutted against the first connecting table 151 of the photovoltaic module numbered 1 and the second connecting table 161 of the photovoltaic module numbered 2 along the two ends of the first horizontal direction respectively, and the mounting portion 71 of the anti-escape pressing piece 7 is abutted against the upper end surface of the pressing block 5, so that the anti-escape pressing piece 7 is abutted against the part of the end surface of the two adjacent flexible photovoltaic panels 2 facing each other along the first horizontal direction, and the second through hole, the third through hole and the fourth through hole are aligned, and then the rod portion of the first bolt 61 is sequentially passed through the second through hole, the third through hole and the fourth through hole and screwed with the first nut 62 until the first nut 62 abuts against the upper end surface of the mounting portion 71.

[0081] The photovoltaic module numbered 3 is placed at a set position on the keel 4, the two ends of the pressing block 5 abut against the first connecting table 151 of the photovoltaic module numbered 2 and the second connecting table 161 of the photovoltaic module numbered 3 along the first horizontal direction respectively, and the mounting portion 71 of the anti-falling pressing piece 7 abuts against the upper end face of the pressing block 5, so that the anti-falling pressing piece 7 abuts against the part of the end faces of the flexible photovoltaic panels 2 of the two photovoltaic modules numbered 2 and 3 which face each other, and the second through hole, the third through hole and the fourth through hole are aligned, then the shank portion of the first bolt 61 is sequentially threaded through the second through hole, the third through hole and the fourth through hole and the first nut 62 is screwed, until the first nut 62 abuts against the upper end face of the mounting portion 71; the step is repeated until the photovoltaic module numbered N and the two photovoltaic modules numbered N-1 are fixedly connected to the keel 4, that is, the flexible photovoltaic module of the embodiment can be assembled on the building roof.

[0082] Obviously, the above embodiment is only an example for clearly illustrating, but not a limitation to the embodiments. Other different forms of changes or variations can be made on the basis of the above description for those skilled in the art. All the embodiments do not need to be exhausted here, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A flexible photovoltaic module, characterized in that, The application relates to a photovoltaic module comprising: a mounting frame (1) having a stepped hole (11) formed through in the vertical direction, the opposite upper end of the stepped hole (11) being provided as a large-diameter hole; a flexible photovoltaic panel (2) having an outer edge fixed to the large-diameter hole by a first sealing adhesive (12); a reinforcing rib (3) arranged in the mounting frame (1) and fixed to the opposite lower end face of the flexible photovoltaic panel (2) by a second sealing adhesive (31).

2. The flexible photovoltaic assembly of claim 1, wherein, The inner bottom wall of the large-diameter hole is concavely provided with a first filling groove (13), and the clamped region between the first filling groove (13) and the flexible photovoltaic panel (2) forms a first filling cavity for filling the first sealing adhesive (12).

3. The flexible photovoltaic assembly of claim 2, wherein, The first filling groove (13) is concavely provided with a partition (131) for separating the first filling groove (13) into a first groove (132) and a second groove (133), and the partition (131) abuts against the lower end face of the flexible photovoltaic panel (2).

4. The flexible photovoltaic assembly of claim 3, wherein, The first groove (132) is located on the side away from the second groove (133), and the upper end of the surrounding wall of the first groove (132) away from the second groove (133) is provided as an arc-shaped portion (1321) abutting against the upper end of the outer side wall of the flexible photovoltaic panel (2).

5. The flexible photovoltaic assembly of any of claims 1 to 4, wherein, The end face of the reinforcing rib (3) facing the flexible photovoltaic panel (2) is concavely provided with a second filling groove (32), and the clamped region between the second filling groove (32) and the flexible photovoltaic panel (2) forms a second filling cavity for filling the second sealing adhesive (31). The flexible photovoltaic panel (2) comprises a polymer back plate, the upper end of the polymer back plate is provided with a first adhesive film, the end face of the first adhesive film away from the polymer back plate is provided with a photovoltaic cell piece, the end face of the photovoltaic cell piece away from the first adhesive film is provided with a second adhesive film, and the end face of the second adhesive film away from the photovoltaic cell piece is provided with a polymer front plate.

6. The flexible photovoltaic assembly of claim 1, wherein, The reinforcing rib (3) is detachably connected to the mounting frame (1).

7. The flexible photovoltaic assembly of claim 6, wherein, The two end faces of the reinforcing rib (3) along the length direction of the reinforcing rib (3) are respectively provided with screw holes (33) for screwing fastening screws (34), and the mounting frame (1) is provided with first through holes (141) corresponding to the positions of the screw holes (33) and passing through the mounting frame (1), and the first through holes (141) are used for allowing the shank portions of the fastening screws (34) to pass through.

8. The flexible photovoltaic assembly of claim 1, wherein, A plurality of binding strap holes (142) are arranged on the mounting frame (1) along the cross section profile of the mounting frame (1) perpendicular to the vertical direction, each of the binding strap holes (142) penetrates the mounting frame (1) in the vertical direction and is used for allowing a binding strap to pass through. The height position of the upper end face of the mounting frame (1) in the vertical direction is not higher than the height position of the upper end face of the flexible photovoltaic panel (2) in the vertical direction.

9. The flexible photovoltaic assembly of claim 1, wherein, Also include a batten (4) for installation on the roof, the photovoltaic module is provided with a plurality of, a plurality of the photovoltaic module is sequentially arranged in the batten (4) along the first horizontal direction; The mounting frame (1) is provided with a first connecting table (151) on one side of the first horizontal direction, and a second connecting table (161) is provided on the other side, the first horizontal direction and the vertical direction are perpendicular to each other; The first connecting table (151) of the photovoltaic module and the second connecting table (161) of the adjacent photovoltaic module are abutted and pressed by the pressing block (5), and the pressing block (5) is connected to the batten (4) by the first bolt assembly.

10. The flexible photovoltaic assembly of claim 9, wherein, The first connecting table (151) is folded upward at one end away from the mounting frame (1) to form a first limiting part (152), and the first limiting part (152) and the first connecting table (151) form a first L-shaped groove (153), and the pressing block (5) is clamped in the first L-shaped groove (153) at one end of the first connecting table (151) along the first horizontal direction; And / or, the second connecting table (161) is folded upward at one end away from the mounting frame (1) to form a second limiting part (162), and the second limiting part (162) and the second connecting table (161) form a second L-shaped groove (163), and the pressing block (5) is clamped in the second L-shaped groove (163) at one end of the second connecting table (161) along the first horizontal direction; And / or, the first bolt assembly includes a matching first bolt (61) and a first nut (62), the batten (4) is provided with a second through hole penetrating in the vertical direction, the pressing block (5) is provided with a third through hole penetrating in the vertical direction corresponding to the position of the second through hole, and the second through hole and the third through hole are used for the rod part of the first bolt (61) to pass through; And / or, the adjacent two photovoltaic modules are provided with a anti-drop pressing piece (7), and the projection part of the end of the adjacent two flexible photovoltaic panels (2) along the first horizontal direction towards each other falls within the range of the anti-drop pressing piece (7); The anti-drop pressing piece (7) is connected to the batten (4) by the first bolt assembly.

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