Frame corner connector, photovoltaic frame and photovoltaic module

Abstract

The utility model relates to the technical field of photovoltaic modules, in particular to a frame corner connector, a photovoltaic frame and a photovoltaic module. The frame corner brace comprises a first corner brace section and a second corner brace section which are connected with each other, the first corner brace section and the second corner brace section are used for being connected with the end of the frame piece, and at least parts of the first corner brace section and the second corner brace section are located on the outer side of the end of the frame piece. The two opposite surfaces, located on the outer side of the end of the frame piece, of the frame corner connector are a first stacking face and a second stacking face respectively. Wherein a groove structure is formed on the first stacking surface, and a convex structure matched with the groove structure in shape is formed on the second stacking surface; and when a plurality of photovoltaic modules with the frame corner connectors are stacked, the groove structures or the convex structures of the upper-layer frame corner connectors are matched with the convex structures or the groove structures of the lower-layer frame corner connectors. According to the frame corner connector, the anti-slipping function is achieved, and the safety and convenience of transportation and storage are improved.

Description

Technical Field

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

[0002] With the rapid development of the photovoltaic industry, photovoltaic modules, as core components, have attracted much attention regarding their performance and quality. The frame of a photovoltaic module not only bears the heavy responsibility of protecting delicate components such as internal solar cells, but also plays a crucial supporting and fixing role during the transportation, installation, and long-term use of the module.

[0003] Currently, photovoltaic module frames on the market face numerous challenges in manufacturing and transportation. To address the issue of preventing modules from slipping off, manufacturers typically roughen the frame surface or add silicone pads. However, these methods have limited effectiveness, and a high risk of slippage remains during actual manufacturing and transportation, leading to module damage and increased production and after-sales maintenance costs.

[0004] In related technologies, photovoltaic module frames and frame assemblies employ a design where grooves and protrusions are respectively set on the stacking surfaces on opposite sides of the frame. This provides a certain degree of fixation during module stacking and effectively reduces the risk of slippage. However, this design has significant drawbacks. Since these two stacking surfaces are also the mounting surfaces for the module and the mounting blocks and brackets during installation, the presence of grooves and protrusions can hinder installation, affecting installation efficiency and quality. Furthermore, grooves on the front frame surface of the module are prone to accumulating dirt and water over long-term use, accelerating frame corrosion and reducing frame reliability and lifespan.

[0005] Based on this, a novel frame corner code, photovoltaic frame, and photovoltaic module have been developed in this utility model to solve the above problems. Utility Model Content

[0006] The first objective of this invention is to provide a frame corner bracket that effectively reduces the dust accumulation area and mitigates the performance impact that dust accumulation may cause. Simultaneously, it also provides an anti-slip function, enhancing the safety and convenience of transportation and storage.

[0007] The present invention adopts the following technical solution: a border corner code, the border corner code includes a first corner code segment and a second corner code segment connected to each other, the first corner code segment and the second corner code segment are respectively used to connect to the end of the border piece, and the first corner code segment and the second corner code segment are at least partially located on the outside of the end of the border piece;

[0008] The two opposing surfaces of the outer end portion of the frame corner bracket are a first stacking surface and a second stacking surface, respectively; wherein, a groove structure is formed on the first stacking surface, and a protrusion structure matching the shape of the groove structure is formed on the second stacking surface;

[0009] When multiple photovoltaic modules with the aforementioned frame corner brackets are stacked, the groove structure or protrusion structure of the upper frame corner bracket cooperates with the protrusion structure or groove structure of the lower frame corner bracket.

[0010] Furthermore, the length and width of the groove structure are both greater than or equal to the length and width of the protrusion structure.

[0011] Furthermore, the depth of the groove structure is greater than or equal to the thickness of the protrusion structure.

[0012] Furthermore, the first corner code segment and the second corner code segment are set perpendicularly, and the connection between the first corner code segment and the second corner code segment is a bevel, forming an L-shaped border corner code.

[0013] Furthermore, both the first and second corner code segments are provided with groove structures and protrusion structures, which are arranged along their length or width directions.

[0014] Furthermore, the connection between the first corner code segment and the second corner code segment is provided with a groove structure and a protrusion structure, which are set parallel to the inclined surface.

[0015] Furthermore, the outer diameter of the first and second corner code segments located on the outer side of the edge component end is greater than or equal to the outer diameter of the edge component end.

[0016] Furthermore, the groove structure on the first stacked surface is located on the front of the frame corner bracket.

[0017] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0018] The frame corner bracket provided by this utility model consists of a first corner bracket segment and a second corner bracket segment that are connected to each other. By respectively fitting these two segments onto the outer wall surface of the ends of the frame components, a stable connection between adjacent frame components can be achieved. The fitting installation method is simple to operate, greatly improves the efficiency of frame assembly, and reduces labor costs.

[0019] This design optimizes the external frame corner brackets, ensuring they do not interfere with the installation process and performance of other photovoltaic module structures throughout the entire process. Since the frame corner brackets are typically smaller than the frame components, placing the groove and protrusion structures on the corner brackets effectively reduces their area compared to placing them on the frame components. Furthermore, the frame corner brackets are generally located at the ends of the frame components, making them more concealed and further reducing the area for dust accumulation, thus mitigating potential performance impacts caused by dust buildup.

[0020] Meanwhile, during the stacking of photovoltaic modules, the grooved structure of the upper frame corner bracket and the protruding structure of the lower frame corner bracket interlock, forming a locking mechanism. This mechanism effectively restricts the relative displacement of the photovoltaic modules in the horizontal and vertical directions, not only preventing slippage but also precisely positioning each module. During module stacking or packaging for transportation, this groove-protrusion interaction ensures that each photovoltaic module is in the correct position, achieving a rational layout and improving the safety and convenience of transportation and storage.

[0021] Furthermore, when the groove structure on the first stacked surface is located on the front of the frame corner bracket, it can also serve as a drainage outlet for the photovoltaic module. In the event of rain or other situations, water can flow out along the groove, preventing water accumulation on the surface of the photovoltaic module and thus achieving a self-cleaning effect. This not only helps maintain the photovoltaic module in good working condition but also effectively extends its service life, providing a strong guarantee for the long-term stable operation of the photovoltaic module.

[0022] The second objective of this utility model is to provide a photovoltaic frame, which includes:

[0023] Multiple border components are connected end to end to form a frame structure;

[0024] The border corner code is the same as the border corner code mentioned above. Adjacent border components are connected by the border corner code.

[0025] The third objective of this invention is to provide a photovoltaic module that includes the aforementioned photovoltaic frame. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of a first embodiment of the border corner bracket of this utility model;

[0028] Figure 2 This is a structural schematic diagram of a second embodiment of the border corner bracket of this utility model;

[0029] Figure 3 This is a structural schematic diagram of a third embodiment of the border corner bracket of this utility model;

[0030] Figure 4 This is a structural schematic diagram of a fourth embodiment of the border corner bracket of this utility model;

[0031] Figure 5 This is a structural schematic diagram of a fifth embodiment of the border corner bracket of this utility model;

[0032] Figure 6 This is a structural schematic diagram of a sixth embodiment of the border corner bracket of this utility model;

[0033] Figure 7 This is a structural schematic diagram of a seventh embodiment of the border corner bracket of this utility model;

[0034] Figure 8 This is a structural schematic diagram of an eighth embodiment of the border corner bracket of this utility model;

[0035] Figure 9 This is a structural schematic diagram of a ninth embodiment of the border corner bracket of this utility model;

[0036] Figure 10 This is a schematic diagram of an installation structure for a frame corner bracket sleeved on the outside of a frame component according to the present invention.

[0037] Figure 11 This is a schematic diagram of an installation structure in which the corner bracket portion of the frame is inserted into the frame component according to the present invention;

[0038] In the figure: First corner code segment 1; Second corner code segment 2; First stacked surface 3; Second stacked surface 4; Groove structure 5; Protruding structure 6; Frame piece 7. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] The following is in conjunction with the appendix Figure 1 To be continued Figure 11 The present invention will be described in detail with specific embodiments:

[0041] like Figures 1 to 11As shown, this utility model provides a frame corner bracket, which includes a first corner bracket segment 1 and a second corner bracket segment 2 connected to each other. The first corner bracket segment 1 and the second corner bracket segment 2 are respectively connected to the ends of a frame component to achieve a fixed connection between adjacent frame components, providing reliable support for the photovoltaic module. It should be noted that this utility model does not limit the specific connection method between the first corner bracket segment 1 and the second corner bracket segment 2. For example, in some specific embodiments, the first corner bracket segment 1 and the second corner bracket segment 2 are integrally formed. The integrally formed first corner bracket segment 1 and the second corner bracket segment 2 have no splicing gaps, resulting in a more stable overall structure and better mechanical properties. When subjected to external forces, it can reduce the possibility of breakage or deformation due to weak connection points, improving the overall strength and reliability of the frame corner bracket. At the same time, the integral forming manufacturing method can effectively shorten the production cycle and improve production efficiency through one-time processing. Meanwhile, in some specific embodiments, the first corner code segment 1 and the second corner code segment 2 can also be welded and fixedly connected; furthermore, in other specific embodiments, the first corner code segment 1 and the second corner code segment 2 can also be plugged in to form a frame corner code. The plug-in connection method is simple to operate; installation can be completed simply by aligning the first corner code segment 1 and the second corner code segment 2 according to the designed plug-in method, greatly improving installation efficiency and reducing installation difficulty. In addition, if the frame corner code is damaged during use, the plug-in connection method allows for the removal and individual replacement of the damaged corner code segment, without needing to replace the entire frame corner code, reducing maintenance costs and repair difficulty. It should be noted that the specific structure of the plug-in joint between the first corner code segment 1 and the second corner code segment 2 is not limited in this utility model; it can be designed by those skilled in the art, and all such designs fall within the protection scope of this utility model.

[0042] The first corner code segment 1 and the second corner code segment 2 are at least partially located on the outer side of the end of the frame member 7, serving as the outer part of the end of the frame member 7 as a frame corner code.

[0043] The two opposing surfaces (which can be the front and back of the frame corner bracket in a specific embodiment) of the outer end of the frame component 7 are the first stacking surface 3 and the second stacking surface 4, respectively. The first stacking surface 3 has a groove structure 5, and the second stacking surface 4 has a protrusion structure 6 that matches the shape of the groove structure 5. When multiple photovoltaic modules with frame corner brackets are stacked, the groove structure 5 or protrusion structure 6 of the upper frame corner bracket matches the protrusion structure 6 or groove structure 5 of the lower frame corner bracket. The matching shape mentioned here refers to the groove structure 5 and the protrusion structure 6 fitting geometrically and being able to cooperate. Specifically, the contour shape, size (including length and width), and depth of the groove structure 5 are designed to correspond to the outer contour shape, size (including length and width), and thickness of the protrusion structure 6, so that when the upper and lower frame corner brackets are stacked, the groove structure 5 and the protrusion structure 6 can interlock, increasing the stacking strength and preventing relative displacement.

[0044] It should be noted that the front of the frame corner bracket mentioned in this utility model refers to the surface facing the light-receiving side of the photovoltaic module when the photovoltaic module is installed and in use normally; while the back of the frame corner bracket is the opposite surface facing the back of the photovoltaic module.

[0045] The frame corner bracket provided by this utility model consists of a first corner bracket segment 1 and a second corner bracket segment 2 that are connected to each other. By installing these two segments at the ends of the frame components, a stable connection between adjacent frame components can be achieved.

[0046] This invention optimizes the exposed portion (i.e., the external portion) of the frame corner bracket, ensuring that it does not interfere with the installation process and performance of other structures in the photovoltaic module throughout the entire process. Since the frame corner bracket is typically smaller than the frame component, placing the groove structure 5 and the protrusion structure 6 on the frame corner bracket effectively reduces the area of ​​the groove and protrusion compared to placing them on the frame component. Furthermore, the frame corner bracket is generally located at the ends of the frame component, making it more concealed and further reducing the area for dust accumulation, thus mitigating potential performance impacts caused by dust buildup.

[0047] Meanwhile, during the stacking of photovoltaic modules, the groove structure 5 or protrusion structure 6 of the upper frame corner bracket interlocks with the protrusion structure 6 or groove structure 5 of the lower frame corner bracket, forming a locking mechanism with a concave-convex fit. This mechanism effectively restricts the relative displacement of photovoltaic modules in the horizontal and vertical directions, not only achieving anti-slip function but also accurately positioning each module. During module stacking or packaging for transportation, this groove-protrusion fit ensures that each photovoltaic module is in the accurate position, achieving a reasonable layout and improving the safety and convenience of transportation and storage.

[0048] Specifically, there are several ways to ensure that the first corner code segment 1 and the second corner code segment 2 are at least partially located on the outer side of the edge of the frame member. One implementation method is as follows: Figure 10 As shown: the first corner code segment 1 and the second corner code segment 2 are respectively used to be sleeved and installed on the outer wall surface of the end of the frame component, so that the first corner code segment 1 and the second corner code segment 2 are completely exposed on the outer side of the end of the frame component; the sleeved installation method is simple to operate, greatly improves the efficiency of frame assembly, and reduces labor costs.

[0049] Another implementation method is as follows Figure 11 As shown: the opposite ends of the first corner code segment 1 and the second corner code segment 2 are respectively inserted into the corresponding end of the frame component, while the connecting end of the first corner code segment 1 and the second corner code segment 2 is exposed outside the end of the frame component. That is, part of the first corner code segment 1 and the second corner code segment 2 are built into the end of the frame component, and part of them are located outside the end of the frame component.

[0050] Specifically, the outer diameter of the first corner segment 1 and the second corner segment 2 located on the outer side of the end of the frame member 7 is greater than or equal to the outer diameter of the end of the frame member 7. This ensures that when photovoltaic modules are stacked, at least the outer portions of the first corner segment 1 and the second corner segment 2 located on the outer side of the end of the frame member 7 can fully abut, increasing the contact area. This provides more stable support, effectively reducing wobbling and misalignment caused by a small contact area, making the module structure more stable, reducing the risk of loosening during transportation, installation, and use, and improving overall reliability.

[0051] Furthermore, in some specific embodiments, such as Figure 1-4 In embodiments 1, 2, 3, and 4, the groove structure 5 on the first stacking surface 3 is located on the front side of the frame corner bracket, meaning the groove structure 5 on the first stacking surface 3 is located on the light-receiving surface of the photovoltaic module. The groove structure 5 also serves as a drainage outlet for the photovoltaic module. In case of rain or other conditions, water can drain out along the groove, preventing water accumulation on the surface of the photovoltaic module and achieving a self-cleaning effect. This not only helps maintain the photovoltaic module in good working condition but also effectively extends its service life, providing strong support for the long-term stable operation of the photovoltaic module.

[0052] Furthermore, in some specific embodiments, the length and width of the groove structure 5 are both greater than or equal to the length and width of the protrusion structure 6. More preferably, the length and width of the groove structure 5 are both slightly greater than the length and width of the protrusion structure 6. In actual operation, when multiple photovoltaic modules with frame corner brackets are stacked, the larger groove structure 5 provides more space for alignment of the protrusion structure 6, making it easier for the protrusion structure 6 to be embedded in the groove structure 5, reducing the precision requirements during assembly, reducing assembly time and labor costs, and improving assembly efficiency. At the same time, during the production process, certain dimensional errors are inevitable, and the relatively large groove structure can tolerate dimensional errors to a certain extent, ensuring the normal use of the frame corner brackets and improving the product yield.

[0053] More specifically, in this embodiment, the depth of the groove structure 5 is greater than or equal to the thickness of the protrusion structure 6. When the depth of the groove structure 5 is greater than or equal to the thickness of the protrusion structure 6, the upper frame corner bracket and the lower frame corner bracket can achieve a tight fit. This tight fit plays a crucial role in the stacking of photovoltaic modules and in actual use: on the one hand, it can promote more efficient force transmission and dispersion, stabilize the connection between photovoltaic modules, and greatly reduce the possibility of relative displacement or loosening of modules due to external forces such as wind and vibration, thereby improving the stability of the entire photovoltaic module system; on the other hand, the tight fit ensures that the pressure of the upper and lower frame corner brackets is evenly distributed during use, effectively avoiding excessive wear caused by excessive local pressure. This not only reduces the loss of frame corner bracket material, but also reduces the risk of degradation of module connection performance due to wear.

[0054] In addition, the tight fit greatly reduces the gaps between the upper and lower frame corner brackets, effectively preventing rainwater, dust and other external impurities from entering the photovoltaic module. This reduces the probability of internal circuit short circuits, corrosion and other problems, providing good protection for the electrical performance of the photovoltaic module and ultimately extending its service life.

[0055] Furthermore, in some specific embodiments, such as Figure 1-9As shown in Embodiments 1-9, the first corner code segment 1 and the second corner code segment 2 are arranged perpendicularly, and the connection between the first corner code segment 1 and the second corner code segment 2 is a bevel, forming an L-shaped frame corner code. The perpendicular arrangement of the first corner code segment 1 and the beveled connection increases the contact area of ​​the two corner code segments, allowing the force to be distributed more evenly on the two corner code segments, reducing stress concentration, lowering the risk of breakage or deformation at the connection, and ensuring that the frame corner code can stably connect to the frame components under various working conditions, thereby improving the overall strength of the photovoltaic module frame. It should be noted that the angle of the bevel is not specifically limited in this invention; for example, Embodiments 1-8 all use a 45° bevel, Embodiment 9 uses a 60° bevel, etc., all of which are within the protection scope of this invention.

[0056] It should be noted that the specific opening positions and directions of the groove structure 5 and the protrusion structure 6 are not limited in this utility model; those skilled in the art can design and select them according to the actual situation. Figure 1 , 2 In embodiments 1, 2, and 4 shown in Figures 4 and 5, both the first corner code segment 1 and the second corner code segment 2 are provided with a groove structure 5 and a protrusion structure 6, which are arranged along the length or width direction of the first corner code segment 1 and the second corner code segment 2. Figure 3 As shown, a groove structure 5 and a protrusion structure 6 are provided at the connection between the first corner code segment 1 and the second corner code segment 2. The groove structure 5 and the protrusion structure 6 are arranged parallel to the inclined plane. By arranging the groove structure 5 and the protrusion structure 6 along the length, width, or inclined plane direction of the corner code segment, multiple stacking directions can be selected. The stacking method can be flexibly adjusted according to actual space conditions and handling, storage, and transportation needs to adapt to different space conditions and improve space utilization. It should be noted that the inclined plane can be straight, wavy, or arc-shaped (not shown in the figure), etc. No specific limitation is made in this utility model. However, arc-shaped and wavy shapes can increase the contact area and improve connection stability.

[0057] Based on the aforementioned frame corner brackets, this utility model further provides a photovoltaic frame comprising multiple frame components and frame corner brackets. The multiple frame components are connected end-to-end to form a frame structure; the frame corner brackets are the aforementioned frame corner brackets, and adjacent frame components are connected via frame corner brackets. The photovoltaic frame provided by this utility model includes all the technical solutions of all embodiments of the aforementioned frame corner brackets, and therefore possesses at least all the beneficial effects brought about by the technical solutions of the aforementioned frame corner bracket embodiments, which will not be elaborated upon here.

[0058] Based on the aforementioned photovoltaic frame, this utility model also provides a photovoltaic module, which includes the aforementioned photovoltaic frame. The photovoltaic module provided by this utility model encompasses all the technical solutions of all embodiments of the aforementioned frame corner code, and therefore possesses at least all the beneficial effects brought about by the technical solutions of the aforementioned frame corner code embodiments, which will not be elaborated upon here.

[0059] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A border corner code, characterized in that: The border corner code includes a first corner code segment and a second corner code segment that are connected to each other. The first corner code segment and the second corner code segment are respectively used to connect to the end of the border component. The first corner code segment and the second corner code segment are at least partially located outside the end of the border component. The two opposing surfaces of the outer end portion of the frame corner bracket are a first stacking surface and a second stacking surface, respectively; wherein, a groove structure is formed on the first stacking surface, and a protrusion structure matching the shape of the groove structure is formed on the second stacking surface; When multiple photovoltaic modules with the aforementioned frame corner brackets are stacked, the groove structure or protrusion structure of the upper frame corner bracket cooperates with the protrusion structure or groove structure of the lower frame corner bracket.

2. The border corner code according to claim 1, characterized in that: The length and width of the groove structure are both greater than or equal to the length and width of the protrusion structure.

3. The border corner code according to claim 2, characterized in that: The depth of the groove structure is greater than or equal to the thickness of the protrusion structure.

4. The border corner code according to claim 1, characterized in that: The first corner code segment and the second corner code segment are arranged perpendicularly, and the connection between the first corner code segment and the second corner code segment is a bevel, forming an L-shaped border corner code.

5. The border corner code according to claim 4, characterized in that: Both the first and second corner code segments are provided with the groove structure and the protrusion structure, which are arranged along their length or width direction.

6. The border corner code according to claim 4, characterized in that: The groove structure and the protrusion structure are provided at the connection between the first corner code segment and the second corner code segment, and the groove structure and the protrusion structure are arranged parallel to the inclined surface.

7. The border corner code according to claim 1, characterized in that: The outer diameter of the first and second corner code segments located on the outer side of the end of the frame member is greater than or equal to the outer diameter of the end of the frame member.

8. The border corner code according to claim 1, characterized in that: The groove structure on the first stacked surface is located on the front side of the border corner bracket.

9. A photovoltaic frame, characterized in that: The photovoltaic frame includes: Multiple frame components are connected end to end in sequence to form a frame structure; The border corner code is the border corner code according to any one of claims 1 to 8, and two adjacent border components are connected by the border corner code.

10. A photovoltaic module, characterized in that: Includes the photovoltaic frame as described in claim 9.

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