Photovoltaic module and module frame

Abstract

The utility model discloses a photovoltaic assembly and an assembly frame, and relates to the technical field of photovoltaic assemblies. The photovoltaic module comprises a photovoltaic laminated piece and a module frame, the module frame comprises a first annular frame, a second annular frame, a protection part and a limiting bearing part, and the protection part is arranged on one side of the first annular frame in the thickness direction and arranged in the circumferential direction of the first annular frame; the limiting bearing part is arranged on one side of the second annular frame in the thickness direction and is arranged in the circumferential direction of the second annular frame; the first annular frame and the second annular frame are embedded; the photovoltaic laminated piece is placed between the first annular frame and the second annular frame, the front edge of the photovoltaic laminated piece abuts against the protection part, and the back edge of the photovoltaic laminated piece abuts against the limiting bearing part. According to the embodiment, the photovoltaic laminated part can be stably limited in the second cavity defined by the first annular frame and the second annular frame, the structure is simple, installation is convenient, and reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to a photovoltaic module and a module frame. Background Technology

[0002] Photovoltaic modules, as the core component of a solar power generation system, convert solar energy into electrical energy. A photovoltaic module consists of solar cells and a frame. After the solar cells are welded and laminated, they are installed into the frame and fitted with a junction box to form the photovoltaic module. However, existing photovoltaic module frames are split, requiring adhesive to be applied between the two short and two long frames during installation to form a complete frame. This process is cumbersome and time-consuming. Utility Model Content

[0003] In view of this, the present invention provides a photovoltaic module and a module frame that can securely limit the photovoltaic laminate in the second cavity enclosed by the first and second annular frames. The structure is simple, easy to install, and highly reliable.

[0004] To achieve the above objectives, according to one aspect of the present invention, a photovoltaic module is provided.

[0005] A photovoltaic module according to an embodiment of the present invention includes: a photovoltaic laminate and a module frame, wherein...

[0006] The aforementioned component frame includes: a first annular frame and a second annular frame, a protective part, and a limiting and bearing part, wherein,

[0007] The aforementioned protective part is provided on one side of the first annular frame in the thickness direction, along the circumference of the first annular frame;

[0008] The aforementioned limiting bearing portion is provided on one side of the second annular frame in the thickness direction, along the circumference of the second annular frame;

[0009] The first annular frame and the second annular frame are fitted together;

[0010] The photovoltaic laminate is placed between the first annular frame and the second annular frame, and the front edge of the photovoltaic laminate abuts against the protective part, and the back edge of the photovoltaic laminate abuts against the limiting bearing part.

[0011] To achieve the above objectives, according to another aspect of the present invention, a component frame is provided.

[0012] A component frame according to an embodiment of the present invention, applied to any of the photovoltaic modules described above, includes:

[0013] The components include a first annular frame, a second annular frame, a protective section, and a limiting and bearing section.

[0014] The aforementioned protective part is provided on one side of the first annular frame in the thickness direction, along the circumference of the first annular frame;

[0015] The aforementioned limiting bearing portion is provided on one side of the second annular frame in the thickness direction, along the circumference of the second annular frame;

[0016] The first annular frame and the second annular frame are fitted together to form a second cavity for accommodating and supporting the photovoltaic laminate.

[0017] To achieve the above objectives, according to another aspect of the present invention, a method for manufacturing a photovoltaic module is provided.

[0018] A method for manufacturing a photovoltaic module according to an embodiment of this utility model includes:

[0019] Step A1: Place the photovoltaic laminate on the first annular frame, so that the edge of the cover plate in the photovoltaic laminate is placed in the protective part, and the side of the photovoltaic laminate is in contact with the first annular frame.

[0020] Step A2: Place the second annular frame above the photovoltaic laminate, and use external force to drive the second annular frame to fit into the first annular frame, so that the protective part abuts against the front edge of the photovoltaic laminate, and the limiting bearing part abuts against the back edge of the photovoltaic laminate.

[0021] One embodiment of the above-mentioned utility model has the following advantages or beneficial effects: by fitting the first annular frame and the second annular frame together, the photovoltaic laminate can be stably confined in the second cavity enclosed by the first annular frame and the second annular frame, thus forming a photovoltaic module with simple structure, convenient installation and high reliability.

[0022] The further effects of the aforementioned unconventional alternative methods will be explained below in conjunction with specific implementation methods. Attached Figure Description

[0023] The accompanying drawings are provided to better understand this utility model and do not constitute an undue limitation thereof. Wherein:

[0024] Figure 1 This is an exploded view of a photovoltaic module according to an embodiment of the present invention;

[0025] Figure 2 This is an exploded view of a photovoltaic laminate according to an embodiment of the present invention;

[0026] Figure 3This is a longitudinal cross-sectional schematic diagram of the first annular frame and the protective part according to an embodiment of the present utility model;

[0027] Figure 4 This is a longitudinal cross-sectional schematic diagram of the second annular frame and the limiting bearing part according to an embodiment of the present utility model;

[0028] Figure 5 This is a longitudinal cross-sectional schematic diagram of a photovoltaic module according to an embodiment of the present invention;

[0029] Figure 6 This is a structural schematic diagram of the first annular frame, the first connecting part, and the protective part according to an embodiment of the present utility model;

[0030] Figure 7 This is a structural schematic diagram of the second annular frame and connecting rod according to an embodiment of the present utility model;

[0031] Figure 8 This is a schematic diagram of the structure of a connecting rod according to an embodiment of the present utility model;

[0032] Figure 9 This is a schematic diagram of the internal structure of a junction box according to an embodiment of the present utility model;

[0033] Figure 10 This is a schematic diagram of the bottom structure of a junction box according to an embodiment of the present utility model;

[0034] Figure 11 This is a schematic diagram of the component frame according to an embodiment of the present invention;

[0035] Figure 12 This is a schematic flowchart of a method for preparing a photovoltaic module according to an embodiment of the present invention.

[0036] Figure label:

[0037] 1-Photovoltaic laminate; 11-Cover plate; 12-Front encapsulant film; 13-Photovoltaic cell array; 14-Rear encapsulant film; 15-Backsheet; 2-Module frame; 21-First annular frame; 22-Second annular frame; 23-Protective part; 24-Limiting and bearing part; 241-First bearing plate; 242-Second bearing plate; 25-Extension part; 26-First connecting part; 261-Slot; 27-Second connecting part; 271-Protrusion; 28-Connecting rod; 3-Junction box; 31-Conductive module; 32-Diode; 33-Solder layer; 34-First hole; 35-Second hole; 36-Positive and negative cables; 4-Sealant. Detailed Implementation

[0038] With the development of photovoltaic technology, photovoltaic modules are gradually upgrading to larger sizes. Currently, photovoltaic module frames are mostly made of metal, primarily aluminum. Due to the high weight of aluminum frames, difficulties in handling, high labor costs, and transportation costs arise during the assembly and installation of photovoltaic power plants. Furthermore, current module frames are all modular, consisting of two short frames and two long frames. During assembly, these four frames need to be joined together using methods such as applying adhesive or installing corner brackets, and then the junction box is installed sequentially to form a complete module frame. The installation process for module frames is complex and cumbersome.

[0039] In addition, metal frame materials are expensive, and the conductivity of metal makes photovoltaic modules prone to potential-induced degradation (PID), which leads to power degradation of photovoltaic modules.

[0040] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These embodiments should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0041] It should be noted that, where there is no conflict, the embodiments of this utility model and the technical features thereof can be combined with each other.

[0042] Figure 1 This is an exploded structural diagram of a photovoltaic module according to an embodiment of the present invention. Figure 1 As shown, the photovoltaic module of this utility model embodiment mainly includes: a photovoltaic laminate 1 and a module frame 2.

[0043] like Figure 2 As shown, the photovoltaic laminate 1 includes: a cover plate 11, a front encapsulating film 12, a photovoltaic cell array 13, a rear encapsulating film 14, and a back sheet 15. The cover plate 11, front encapsulating film 12, photovoltaic cell array 13, rear encapsulating film 14, and back sheet 15 are sequentially stacked and then laminated to form the photovoltaic laminate 1. The photovoltaic cell array 13 may include several cell strings and interconnecting strips. The interconnecting strips are used to form effective electrical connections between solar cells and between cell strings.

[0044] The aforementioned component frame 2 includes: a first annular frame 21 and a second annular frame 22, a protective part 23, and a limiting and bearing part 24. Both the first annular frame 21 and the second annular frame 22 can be integral frames, i.e., annular frames whose four sides are non-detachably formed. This eliminates the need to glue the four sides together to form the component frame 2 during photovoltaic module installation, simplifying the photovoltaic module installation process.

[0045] like Figure 3 As shown, the protective portion 23 is disposed circumferentially along one side of the first annular frame 21 in the thickness direction and extends inward to the inside of the first annular frame 21. The photovoltaic laminate 1 is placed between the first annular frame 21 and the second annular frame 22. The protective portion 23 extending inward to the inside of the first annular frame 21 can limit the photovoltaic laminate 1 and protect its edges, preventing dust and other substances from entering the edges of the photovoltaic laminate 1 during outdoor operation of the photovoltaic module.

[0046] The protective part 23 can be detachably connected to the first annular frame 21, or it can be an integral structure with the first annular frame 21. When the protective part 23 is detachably connected to the first annular frame 21, if the photovoltaic laminate 1 or the protective part 23 is damaged, the protective part 23 can be removed from the first annular frame 21 for repair and replacement of the photovoltaic laminate 1 or the protective part 23. When the protective part 23 is an integral structure with the first annular frame 21, the mechanical properties of the protective part 23 can be enhanced, so that the protective part 23 can provide better limiting and protection for the photovoltaic laminate 1. At the same time, the installation process of the photovoltaic module is simplified, as it is not necessary to first install the protective part 23 on the first annular frame 21 and then assemble it with the photovoltaic module and the second annular frame 22 to form the photovoltaic module.

[0047] Preferably, the protective part 23 and the first annular frame 21 are an integral structure.

[0048] like Figure 4 As shown, the limiting support portion 24 is disposed on one side of the second annular frame 22 in the thickness direction, circumferentially along the second annular frame 22. The limiting support portion 24 can be disposed on the inner side of the second annular frame 22. When the photovoltaic laminate 1 is placed between the first annular frame 21 and the second annular frame 22, the limiting support portion 24 disposed on the inner side of the second annular frame 22 can support the photovoltaic laminate 1, limiting the photovoltaic laminate 1 between the first annular frame 21 and the second annular frame 22, and preventing the photovoltaic laminate 1 from shifting.

[0049] The limiting support part 24 can be detachably connected to the second annular frame 22, or it can be an integral structure with the second annular frame 22. When the protective part 23 is detachably connected to the first annular frame 21, if the photovoltaic laminate 1 or the limiting support part 24 is damaged, the limiting support part 24 can be removed from the second annular frame 22 to repair or replace the photovoltaic laminate 1 or the protective part 23. When the limiting support part 24 is an integral structure with the second annular frame 22, the mechanical properties of the limiting support part 24 can be enhanced, so that the limiting support part 24 can provide better limiting and bearing effect on the photovoltaic laminate 1. At the same time, the installation process of the photovoltaic module is simplified, eliminating the need to first install the limiting support part 24 on the second annular frame 22 and then assemble it with the photovoltaic laminate 1 and the first annular frame 21 to form a photovoltaic module.

[0050] Furthermore, such as Figure 4 As shown, the limiting support portion 24 may include a first support plate 241 and a second support plate 242. One end of the first support plate 241 is fixedly connected to one end of the second annular frame 22, and the other end of the first support plate 241 is fixedly connected to one end of the second support plate 242; the other end of the second support plate 242 is fixedly connected to the bottom plate of the second annular frame 22, and the first support plate 241, the second support plate 242, and the second annular frame 22 enclose a first cavity.

[0051] In the photovoltaic module, the first support plate 241 abuts against the back edge of the photovoltaic laminate 1. The second support plate 242 supports the first support plate 241. The first support plate 241, the second support plate 242, the side plates of the second annular frame 22, and the bottom plate of the second annular frame 22 enclose a first cavity, thereby dispersing and bearing the external forces on the first support plate 241 and even the second annular frame 22, and enhancing the mechanical properties of the second annular frame 22.

[0052] like Figure 4 and Figure 5 As shown, an extension 25 is provided on the side of the second annular frame 22 opposite to the first annular frame 21 in the thickness direction. The extension 25 extends inward toward the second annular frame 22 to improve the support force of the second annular frame 22. The length of the extension 25 can be set according to actual conditions and is not limited here.

[0053] It is understood that the extension 25 is connected to the base plate of the second annular frame 22, or the extension 25 can directly serve as the base plate of the second annular frame 22. In this way, the other side of the second support plate 242 can be connected to the extension 25.

[0054] Furthermore, the extension 25 can be integrated with the second annular frame 22.

[0055] like Figure 5 As shown, the first annular frame 21 and the second annular frame 22 are fitted together, the photovoltaic laminate 1 is placed between the first annular frame 21 and the second annular frame 22, and the front edge of the photovoltaic laminate 1 abuts against the protective part 23, and the back edge of the photovoltaic laminate 1 abuts against the limiting bearing part 24 to prevent the photovoltaic laminate 1 from shifting.

[0056] It should be noted that the front side of the photovoltaic laminate 1 refers to the side of the cover plate 11 away from the photovoltaic cell array 13, that is, the side of the photovoltaic laminate 1 facing the sunlight during the operation of the photovoltaic module; the back side of the photovoltaic laminate 1 refers to the side of the back plate 15 away from the photovoltaic cell array 13, that is, the side of the photovoltaic laminate 1 away from the sunlight during the operation of the photovoltaic module.

[0057] The first annular frame 21 and the second annular frame 22 can be fitted together in ways including but not limited to fitting together by fitting parts, fitting together by fitting together by correspondingly provided protrusions 271 and slots 261, etc.

[0058] In one alternative embodiment, such as Figures 3-6 As shown, the inner wall of the first annular frame 21 is provided with a first connecting portion 26, wherein the edge of the photovoltaic laminate 1 abuts against the first connecting portion 26, the protective portion 23, and the limiting bearing portion 24. The outer wall of the second annular frame 22 is provided with a second connecting portion 27. The first annular frame 21 and the second annular frame 22 can be fitted together by the first connecting portion 26 and the second connecting portion 27.

[0059] For example, one side of the first connecting portion 26 may be provided with a plurality of slots 261, and one side of the second connecting portion 27 may be provided with a plurality of protrusions 271 that engage with the slots 261; the plurality of slots 261 and the plurality of protrusions 271 are correspondingly provided so that the first annular frame 21 and the second annular frame 22 can engage with the protrusions 271 in the second connecting portion 27 through the slots 261 in the first connecting portion 26. Meanwhile, the other end of the first connecting portion 26 may be connected to the protective portion 23, so that the plurality of slots 261 are located on the other side of the thickness direction of the first annular frame 21, and the plurality of slots 261 and the protective portion 23 are located on the same side of the width direction of the first annular frame 21; the other end of the second connecting portion 27 may be connected to the limiting bearing portion 24, so that the plurality of protrusions 271 are located on the other side of the thickness direction of the second annular frame 22, and the plurality of protrusions 271 and the limiting bearing portion 24 are located on the same side of the second annular frame 22.

[0060] Furthermore, such as Figure 4As shown, the protrusion 271 can be configured as a triangular anti-retraction tooth with an angled bevel. The angled side of the protrusion 271 near the limiting bearing portion 24 is perpendicular to the second connecting portion 27, forming the angled side of the triangular anti-retraction tooth. During the process of embedding the second annular frame 22 into the first annular frame 21, the angled side allows the protrusion 271 to move more easily towards the protective portion 23 under external force, making it easier for workers to engage the protrusion 271 into the slot 261. Correspondingly, the slot 261 for engaging the protrusion 271 can also be configured with a longitudinal cross-section structure corresponding to the protrusion 271, making it easier to engage the protrusion 271 into the slot 261 with less effort. Furthermore, since the side of the protrusion 271 near the extension portion 25 abuts against the slot 261, the protrusion 271 is less likely to detach from the slot 261 after being engaged, making the engagement between the protrusion 271 and the slot 261 more secure. It is understandable that the shapes of the protrusion 271 and the slot 261 can also be set to other shapes, such as Figure 5 As shown, it can be set to a rectangle, etc., and no specific limitation is made here.

[0061] In one alternative embodiment, such as Figure 7 and Figure 8 As shown, the photovoltaic module may further include: a connecting rod 28 disposed on the second annular frame 22 and a junction box 3 disposed on the connecting rod 28.

[0062] Furthermore, the second annular frame 22 includes two correspondingly arranged long frames and two correspondingly arranged short frames; the two long frames and the two short frames are integrally formed; the two ends of the connecting rod 28 are respectively connected to the middle of the two long frames, thereby strengthening the mechanical properties of the second annular frame 22, improving the load-bearing capacity of the second annular frame 22 on the photovoltaic laminate 1, and preventing the second annular frame 22 from deforming.

[0063] The connecting rod 28 may include several slot structures for accommodating the junction box 3. These slot structures may be located on the back or side of the connecting rod 28. Here, the back of the connecting rod 28 refers to the side facing away from the photovoltaic laminate 1. As an example, each connecting rod 28 may have three slot structures.

[0064] Furthermore, the connecting rod 28 can be integrated with the second annular frame 22 to reduce installation steps.

[0065] Junction box 3 is disposed in the groove structure of the connecting rod 28 and is electrically connected to the photovoltaic laminate 1 to export the electrical energy generated by the photovoltaic cell array 13.

[0066] like Figure 9As shown, the junction box 3 may include a conductive module 31 and a diode 32. The conductive module 31 is located at the bottom of the junction box 3 and has a solder layer 33 on its surface. The diode 32 is located on top of the conductive module 31, on the side of the conductive module 31 away from the bottom of the junction box 3. The junction box 3, through the built-in diode 32, can effectively bypass the current generated by the hot spot effect, preventing the photovoltaic module from burning out due to the hot spot effect.

[0067] like Figure 10 As shown, after removing the conductive module 31 and diode 32, the bottom of the junction box 3 has a first hole 34 for fixing the conductive module 31 and diode 32, a second hole 35 for the busbar leads, and positive and negative cables 36. The first hole 34 can be located below the conductive module 31, corresponding to the four corners of the conductive module 31; the second hole 35 can be located below the conductive module 31, corresponding to the center of the conductive module 31. The diode 32 can be fixed to the first hole 34 with a fastener to prevent it from falling off. The busbar leads can be electrically connected to the conductive module 31 via the second hole 35 to transmit the collected internal current of the photovoltaic module to the conductive module 31. The positive and negative cables 36 can be connected to the conductive module 31 to output the current generated by the photovoltaic module to an external circuit.

[0068] In addition, junction box 3 can also be equipped with a cover to protect the conductive module 31 and diode 32 inside junction box 3 from damage caused by dust, moisture or other contaminants entering the junction box 3.

[0069] Junction box 3 may or may not have a housing. Without a housing, a first hole 34 and a second hole 35 are directly made at the bottom of the slot structure, and positive and negative cables 36 are introduced into the slot structure. The conductive module 31 and diode 32 are fixed through the first hole 34, and the busbar leads pass through the second hole 35. This allows all the structures of junction box 3 to be directly set inside the slot structure, and the box cover is directly placed on the slot structure, thus eliminating the need for a housing for junction box 3 and reducing material costs. With the housing configured, the first hole 34 and the second hole 35 of the junction box 3 are directly located at the bottom of the housing, and positive and negative cables 36 are introduced into the housing. The conductive module 31 and the diode 32 are fixed through the first hole 34, and the busbar leads pass through the second hole 35. The slot structure is provided with a corresponding wire passage corresponding to the position of the second hole 35, so that the busbar leads can pass through and enter the housing. The housing with all the structures of the junction box 3 is placed in the slot structure, and then the box cover is placed on the housing, thus making the junction box independently designed, which facilitates the subsequent maintenance and replacement of the junction box 3.

[0070] In one alternative embodiment, such as Figure 5As shown, when the photovoltaic laminate 1 abuts against the protective part 23, the limiting bearing part 24 and the first connecting part 26, the gap between the photovoltaic laminate 1 and the protective part 23, the limiting bearing part 24 and the first connecting part 26 can be filled with sealant 4, thereby tightly connecting the photovoltaic laminate 1 with the above three components, improving the load-bearing capacity of the photovoltaic module, ensuring the sealing of the photovoltaic module, and preventing dust and moisture from entering the interior of the laminate and affecting the internal circuit.

[0071] In an optional embodiment, the first annular frame 21 and / or the second annular frame 22 are made of plastic composite material.

[0072] As an example, the aforementioned plastic composite material can be glass fiber reinforced polyurethane. Glass fiber reinforced polyurethane primarily comprises high-performance polyurethane resin. It is understood that the materials of the aforementioned first annular frame 21 and / or the aforementioned second annular frame 22 can also be other plastic composite materials with similar or identical properties, and no specific limitations are made here.

[0073] Plastic composite materials are characterized by corrosion resistance, high strength, and lightweight. By using plastic composite materials as the material for the first annular frame 21 and / or the second annular frame 22, the mechanical performance of the photovoltaic module is guaranteed, while the weight of the frame and the photovoltaic module can be reduced, making installation easier and reducing the transportation and labor costs of the photovoltaic module. At the same time, due to the good electrical insulation properties of plastic composite materials, the potential-induced degradation (PID) effect of the photovoltaic module can be effectively suppressed.

[0074] In addition, plastic composite materials have a certain degree of elasticity and plasticity. During the process of inserting the protrusion 271 into the slot 261, an external force drives the second annular frame 22 to move towards the protective part 23, and the first connecting part 26 and the second connecting part 27 undergo slight deformation so that the protrusion 271 can be inserted into the slot 261.

[0075] The photovoltaic module of this utility model can securely limit the photovoltaic laminate 1 in the second cavity enclosed by the first annular frame 21 and the second annular frame 22 by the fitting of the first annular frame 21 and the second annular frame 22, thus forming a photovoltaic module with simple structure, convenient installation and high reliability.

[0076] Furthermore, the first annular frame 21 and the second annular frame 22 are combined together by an interlocking mechanism, and both are integral structures, eliminating the need for separate structures with four separate sides. This simplifies the framing process and shortens the installation time of the photovoltaic modules. By providing a connecting rod 28 on the second annular frame 22, the mechanical performance of the second annular frame 22 is improved.

[0077] By using a first annular frame 21 and a second annular frame 22 made of plastic composite materials, the module frame 2 has high strength, good insulation, and is also lighter, which greatly reduces the weight of the photovoltaic module.

[0078] Figure 11 This is a structural schematic diagram of the component frame 2 according to an embodiment of the present utility model. Figure 3 , Figure 4 and Figure 11 As shown, this embodiment of the present invention provides a component frame 2, which can be applied to any of the photovoltaic modules described above, including: a first annular frame 21 and a second annular frame 22, a protective part 23, and a limiting and supporting part 24. The first annular frame 21 and the second annular frame 22 can both be integral frames, that is, annular frames formed by four non-detachable sides, thereby eliminating the need to glue the four sides together to form the component frame 2 during photovoltaic module installation, simplifying the photovoltaic module installation process.

[0079] The aforementioned protective portion 23 is disposed on one side of the first annular frame 21 in the thickness direction, circumferentially along the first annular frame 21, and extends inward to the inside of the first annular frame 21. The aforementioned limiting and supporting portion 24 is disposed on one side of the second annular frame 22 in the thickness direction, circumferentially along the second annular frame 22, and may be disposed on the inside of the second annular frame 22. The first annular frame 21 and the second annular frame 22 fit together to form a second cavity for accommodating and supporting the photovoltaic laminate 1.

[0080] In an optional embodiment of this utility model, the protective part 23 and the first annular frame 21 are integrally structured, which can enhance the mechanical properties of the protective part 23, enabling the protective part 23 to provide better limiting and protection for the photovoltaic laminate 1, thereby improving the overall mechanical properties of the first annular frame 21. At the same time, it simplifies the assembly process of the component frame 2, as the protective part 23 does not need to be installed on the first annular frame 21 during the assembly of the component frame 2.

[0081] In an optional embodiment of this utility model, the limiting support part 24 and the second annular frame 22 are integral structures, which can enhance the mechanical properties of the limiting support part 24, so that the limiting support part 24 can better limit and support the photovoltaic laminate 1. At the same time, it simplifies the assembly process, and it is not necessary to install the limiting support part 24 on the second annular frame 22 before assembling the component frame 2.

[0082] like Figure 4As shown, the limiting support portion 24 is disposed on one side of the second annular frame 22 in the thickness direction, circumferentially along the second annular frame 22. The limiting support portion 24 can be disposed on the inner side of the second annular frame 22. When the photovoltaic laminate 1 is placed between the first annular frame 21 and the second annular frame 22, the limiting support portion 24 disposed on the inner side of the second annular frame 22 can support the photovoltaic laminate 1, limiting the photovoltaic laminate 1 between the first annular frame 21 and the second annular frame 22, and preventing the photovoltaic laminate 1 from shifting.

[0083] In an optional embodiment of the present invention, the inner sidewall of the first annular frame 21 is provided with a first connecting portion 26; the outer sidewall of the second annular frame 22 is provided with a second connecting portion 27; the first connecting portion 26 and the second connecting portion 27 are fitted together.

[0084] For example, one end of the first connecting portion 26 may be provided with a plurality of slots 261, and one end of the second connecting portion 27 may be provided with a plurality of protrusions 271; the plurality of slots 261 and the plurality of protrusions 271 are correspondingly provided so that the first annular frame 21 and the second annular frame 22 can be engaged with the protrusions 271 in the second connecting portion 27 through the slots 261 in the first connecting portion 26. At the same time, the other end of the first connecting portion 26 may be connected to the protective portion 23, so that the plurality of slots 261 are located on the other side of the thickness direction of the first annular frame 21, and the plurality of slots 261 and the protective portion 23 are located on the same side of the width direction of the first annular frame 21; the other end of the second connecting portion 27 may be connected to the limiting bearing portion 24, so that the plurality of protrusions 271 are located on the other side of the thickness direction of the second annular frame 22, and the plurality of protrusions 271 and the limiting bearing portion 24 are located on the same side of the second annular frame 22.

[0085] In an optional embodiment of this invention, the component frame 2 further includes a connecting rod 28 disposed on the second annular frame 22. Preferably, the connecting rod 28 and the second annular frame 22 are an integral structure to reduce installation steps.

[0086] Furthermore, the second annular frame 22 includes two long frames and two short frames respectively; the two long frames and the two short frames are integral; the two ends of the connecting rod 28 are respectively connected to the middle of the two long frames, thereby strengthening the mechanical properties of the second annular frame 22, improving the load-bearing capacity of the second annular frame 22 on the photovoltaic laminate 1, and preventing the second annular frame 22 from deforming.

[0087] Furthermore, the connecting rod 28 includes a slot structure for housing the junction box 3. The slot structure can be located on the back or side of the connecting rod 28. Here, the back of the connecting rod 28 refers to the side away from the photovoltaic laminate 1. As an example, each connecting rod 28 can have three slot structures. The junction box 3 is disposed in the slot structure of the connecting rod 28. After the photovoltaic module is assembled, the junction box 3 can be electrically connected to the photovoltaic laminate 1 to discharge the electrical energy generated by the photovoltaic cell array 13.

[0088] like Figure 9 As shown, the junction box 3 may include a conductive module 31 and a diode 32. The conductive module 31 is located at the bottom of the junction box 3 and has a solder layer 33 on its surface. The diode 32 is located on top of the conductive module 31, on the side of the conductive module 31 away from the bottom of the junction box 3. The junction box 3, through the built-in diode 32, can effectively bypass the current generated by the hot spot effect, preventing the photovoltaic module from burning out due to the hot spot effect.

[0089] like Figure 10 As shown, after removing the conductive module 31 and diode 32, the bottom of the junction box 3 has a first hole 34 for fixing the conductive module 31 and diode 32, a second hole 35 for the busbar leads to pass through, and positive and negative cables 36. The first hole 34 can be located below the conductive module 31, corresponding to the four corners of the conductive module 31; the second hole 35 can be located below the conductive module 31, corresponding to the center of the conductive module 31 and arranged side-by-side. The diode 32 can be fixed to the first hole 34 by a fastener to prevent it from falling off. The busbar leads can be electrically connected to the conductive module 31 via the second hole 35 to transmit the collected internal current of the photovoltaic module to the conductive module 31. The positive and negative cables 36 can be connected to the conductive module 31 to output the current generated by the photovoltaic module to an external circuit.

[0090] In addition, junction box 3 can also be equipped with a cover to protect the conductive module 31 and diode 32 inside junction box 3 from damage caused by dust, moisture or other contaminants entering the junction box 3.

[0091] Junction box 3 may or may not have a housing. Without a housing, a first hole 34 and a second hole 35 are directly made at the bottom of the slot structure, and positive and negative cables 36 are introduced into the slot structure. The conductive module 31 and diode 32 are fixed through the first hole 34, and the busbar leads pass through the second hole 35. This allows all the structures of junction box 3 to be directly set inside the slot structure, and the box cover is directly placed on the slot structure, thus eliminating the need for a housing for junction box 3 and reducing material costs. With the housing configured, the first hole 34 and the second hole 35 of the junction box 3 are directly set at the bottom of the housing, and positive and negative cables 36 are introduced into the housing. The conductive module 31 and the diode 32 are fixed through the first hole 34, and the busbar leads pass through the second hole 35. The slot structure is provided with a corresponding wire passage corresponding to the position of the second hole 35, so that the busbar leads can pass through and enter the housing. The housing with all the structures of the junction box 3 is placed in the slot structure, and then the box cover is covered on the housing, thus making the junction box 3 independently designed, which facilitates the subsequent maintenance and replacement of the junction box 3.

[0092] In an optional embodiment of this utility model, the component frame 2 further includes an extension 25 disposed on the side opposite to the first annular frame 21 in the thickness direction of the second annular frame 22; the extension 25 extends inward toward the second annular frame 22 to improve the support force of the second annular frame 22. The length of the extension 25 can be set according to actual conditions and is not limited here.

[0093] In an optional embodiment of this utility model, the limiting bearing part 24 includes a first bearing plate 241 and a second bearing plate 242, wherein one end of the first bearing plate 241 is fixedly connected to one end of the second annular frame 22; the other end of the first bearing plate 241 is fixedly connected to one end of the second bearing plate 242; and the other end of the second bearing plate 242 is fixedly connected to the bottom plate of the second annular frame 22. The first bearing plate 241, the second bearing plate 242, and the second annular frame 22 form a first cavity, thereby dispersing and bearing the external force on the first bearing plate 241 and even the second annular frame 22, and enhancing the mechanical properties of the second annular frame 22.

[0094] In an optional embodiment of this utility model, the first annular frame 21 and / or the second annular frame 22 are made of plastic composite material.

[0095] As an example, the aforementioned plastic composite material can be glass fiber reinforced polyurethane. Glass fiber reinforced polyurethane primarily comprises high-performance polyurethane resin. It is understood that the materials of the aforementioned first annular frame 21 and / or the aforementioned second annular frame 22 can also be other plastic composite materials with similar or identical properties, and no specific limitations are made here.

[0096] In addition, plastic composite materials have a certain degree of elasticity and plasticity. During the process of inserting the protrusion 271 into the slot 261, an external force drives the second annular frame 22 to move towards the protective part 23, and the first connecting part 26 and the second connecting part 27 undergo slight deformation so that the protrusion 271 can be inserted into the slot 261.

[0097] In this embodiment of the utility model, the component frame 2, through the interlocking of the first annular frame 21 and the second annular frame 22, can stably limit the photovoltaic laminate 1 in the second cavity enclosed by the first annular frame 21 and the second annular frame 22, thus forming a photovoltaic module with simple structure, convenient installation and high reliability.

[0098] Furthermore, the first annular frame 21 and the second annular frame 22 are combined together by an interlocking mechanism, and both are integral structures, eliminating the need for separate structures with four separate sides. This simplifies the framing process and shortens the installation time of the photovoltaic modules. By providing a connecting rod 28 on the second annular frame 22, the mechanical performance of the second annular frame 22 is improved.

[0099] By using a first annular frame 21 and a second annular frame 22 made of plastic composite materials, the module frame 2 has high strength, good insulation, and is also lighter, which greatly reduces the weight of the photovoltaic module.

[0100] Figure 12 This is a schematic flowchart illustrating a method for manufacturing a photovoltaic module according to an embodiment of the present invention. Figure 12 As shown in the figure, this utility model embodiment also provides a method for manufacturing a photovoltaic module, including:

[0101] Step A1: Place the photovoltaic laminate 1 on the first annular frame 21, so that the edge of the cover plate in the photovoltaic laminate 1 is placed on the protective part 23, and the side of the photovoltaic laminate 1 is in contact with the first annular frame 21.

[0102] Furthermore, step A1 further includes: before placing the photovoltaic laminate 1 on the first annular frame 21 provided with sealant 4, providing sealant 4 on the side of the protective part 23 that is used to adhere to the edge of the cover plate of the photovoltaic laminate 1.

[0103] Step A2: Place the second annular frame 22 above the photovoltaic laminate 1, and drive the second annular frame 22 to fit into the first annular frame 21, so that the protective part 23 abuts against the front edge of the photovoltaic laminate 1 and the limiting bearing part 24 abuts against the back edge of the photovoltaic laminate 1.

[0104] Furthermore, the aforementioned external force driving the second annular frame 22 to engage with the first annular frame 21 includes: under the driving force of the external force, engaging a plurality of protrusions 271 provided in the second connecting portion 27 of the outer sidewall of the second annular frame 22 with a plurality of slots 261 provided in the first connecting portion 26 of the inner sidewall of the first annular frame 21.

[0105] In an optional embodiment of this utility model, the above method further includes:

[0106] Step A0: The cover plate 11, the front adhesive film 12, the photovoltaic cell array 13, the rear adhesive film 14 and the back plate 15 are sequentially stacked and laminated to form the photovoltaic laminate 1.

[0107] In an optional embodiment of this utility model, the above method further includes:

[0108] Step A3: Connect the interconnecting strip of the photovoltaic laminate 1 to the junction box 3 of the connecting rod 28; wherein the connecting rod 28 is disposed on the second annular frame 22.

[0109] Specifically, the interconnecting strip of the photovoltaic laminate 1 is effectively electrically connected to the conductive module 31 through the solder layer 33 on the conductive module 31 in the junction box 3.

[0110] In an optional embodiment of this utility model, the above method further includes:

[0111] Step A4: Inject potting compound into junction box 3 to form a photovoltaic module.

[0112] By injecting potting compound into junction box 3, the potting compound, after solidification, provides both sealing and thermal conductivity. Sealing junction box 3 with potting compound prevents moisture and dust from entering during photovoltaic module operation and dissipates the heat generated by junction box 3 during photovoltaic module operation, thus avoiding interference with the current conduction function of junction box 3.

[0113] The photovoltaic module manufacturing method of this utility model embodiment, through the fitting of the first annular frame 21 and the second annular frame 22, can stably limit the photovoltaic laminate 1 in the second cavity enclosed by the first annular frame 21 and the second annular frame 22, forming a photovoltaic module with simple structure, convenient installation and high reliability. Moreover, the first annular frame 21 and the second annular frame 22 are both integral structures, and the photovoltaic module can be installed by fitting. This eliminates the installation process of the four-sided separate structure that requires glue assembly, and shortens the installation time of the photovoltaic module.

[0114] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A photovoltaic module, characterized by, The photovoltaic laminated component (1) and the assembly frame (2) are provided, wherein The assembly frame (2) comprises a first annular frame (21) and a second annular frame (22), a protection part (23), and a limiting bearing part (24), wherein The protection part (23) is arranged on one side of the first annular frame (21) in the thickness direction of the first annular frame (21) and circumferentially along the first annular frame (21); The limiting bearing part (24) is arranged on one side of the second annular frame (22) in the thickness direction of the second annular frame (22) and circumferentially along the second annular frame (22); The first annular frame (21) is embedded in the second annular frame (22); The photovoltaic laminated component (1) is arranged between the first annular frame (21) and the second annular frame (22), and the front edge of the photovoltaic laminated component (1) abuts against the protection part (23), and the back edge of the photovoltaic laminated component (1) abuts against the limiting bearing part (24).

2. The photovoltaic assembly according to claim 1, wherein An inner side wall of the first annular frame (21) is provided with a first connecting part (26); An outer side wall of the second annular frame (22) is provided with a second connecting part (27); The first connecting part (26) is embedded in the second connecting part (27).

3. The photovoltaic assembly according to claim 1, wherein The protection part (23) is an integral structure with the first annular frame (21).

4. The photovoltaic assembly according to claim 1, wherein The limiting bearing part (24) is an integral structure with the second annular frame (22). One side of the first connecting part (26) is provided with a plurality of clamping grooves (261); 5. The photovoltaic module of claim 2, wherein, One side of the second connecting part (27) is provided with a protrusion (271) embedded in the clamping grooves (261). Further comprising:

6. The photovoltaic module of claim 1, wherein, A connecting rod (28) arranged on the second annular frame (22) and a junction box (3) arranged on the connecting rod (28), wherein The junction box (3) is electrically connected with the photovoltaic laminated component (1).

7. The photovoltaic assembly according to claim 6, wherein The second annular frame (22) comprises two long frames and two short frames arranged correspondingly, and the two long frames and the two short frames are an integral structure; Two ends of the connecting rod (28) are respectively connected with the middle portions of the two long frames. The connecting rod (28) comprises a groove structure for placing the junction box (3); 8. The photovoltaic module of claim 6, wherein, And / or The connecting rod (28) is an integral structure with the second annular frame (22). An extension part (25) is arranged on the other side of the second annular frame (22) in the thickness direction away from the first annular frame (21); 9. The photovoltaic module of claim 1, wherein, The extension part (25) extends to the inner side of the second annular frame (22).

10. The photovoltaic assembly according to claim 1, wherein The limiting bearing part (24) comprises a first bearing plate (241) and a second bearing plate (242), wherein ​ One end of the first bearing plate (241) is fixedly connected with one end of the second annular frame (22); The other end of the first bearing plate (241) is fixedly connected with one end of the second bearing plate (242); The other end of the second bearing plate (242) is fixedly connected with the bottom plate of the second annular frame (22), and the first bearing plate (241), the second bearing plate (242) and the second annular frame (22) enclose to form a first cavity.

11. The photovoltaic module of any of claims 1-10, wherein, The material of the first annular frame (21) and / or the second annular frame (22) is plastic composite material.

12. An assembly frame, characterized by The application is applied to the photovoltaic module as claimed in any one of claims 1-9, comprising: The first annular frame and the second annular frame, the protection part, and the limiting bearing part, wherein, The protection part is arranged along the circumference of the first annular frame on one side in the thickness direction of the first annular frame; The limiting bearing part is arranged along the circumference of the second annular frame on one side in the thickness direction of the second annular frame; The first annular frame and the second annular frame are embedded to enclose a second cavity for accommodating and bearing the photovoltaic laminated component.

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