Impact resistant photovoltaic panel frame assembly

Abstract

The application discloses an anti-impact photovoltaic panel frame assembly, which comprises an elastic inner frame for sealing and wrapping the edges of a photovoltaic panel, a fixing support arranged outside the inner frame and used for fixing the inner frame, and an outer frame arranged outside the fixing support and connected with the fixing support through a plurality of elastic sheets. The elastic inner frame is used for sealing and wrapping the edges of the photovoltaic panel, so that the waterproof performance of the photovoltaic panel is improved, and the elastic inner frame can buffer the impact, so that the anti-impact performance of the photovoltaic panel is improved. The elastic sheets can further buffer the impact received by the photovoltaic panel, so that the anti-impact performance of the photovoltaic panel is further improved, and the damage probability of the photovoltaic panel during transportation and use is reduced.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic panel technology, and particularly relates to an impact-resistant photovoltaic panel frame assembly. Background Technology

[0002] Photovoltaic modules generally consist of photovoltaic cells, ultra-clear glass, encapsulating film, encapsulation backsheet, and aluminum alloy frame. However, ultra-clear glass has its limitations; its high density results in a heavier photovoltaic module. For existing industrial and commercial rooftops, most have lower load-bearing capacity, posing a significant challenge to the application of single-glass photovoltaic modules. Furthermore, the large weight of each module also creates various inconveniences for construction workers.

[0003] Chinese utility model patent CN216699923U discloses a frame assembly, including a third frame for assembly onto the third side of a photovoltaic panel and a fourth frame for assembly onto the fourth side opposite to the third side of the photovoltaic panel; a first connecting portion is provided on one side of the third frame; a second connecting portion is provided on one side of the fourth frame that can be matched and connected with the first connecting portion; at least one of the first connecting portion and the second connecting portion has a rough surface, which enables stable assembly between the first connecting portion of the third frame and the second connecting portion of the fourth frame, resulting in good assembly effect between the third frame and the fourth frame.

[0004] During transportation and use after installation, if the photovoltaic panel is subjected to external impact, the glass and silicon wafers of the photovoltaic panel are easily damaged. The frame components of the aforementioned photovoltaic panel are made of ordinary profiles, which do not provide effective cushioning against impacts, making the photovoltaic panel prone to damage during transportation and use.

[0005] Therefore, it is necessary to improve the existing photovoltaic panel frame components. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects in the prior art and provide an impact-resistant photovoltaic panel frame assembly, which improves the protective effect of the frame assembly on the photovoltaic panel.

[0007] To achieve the above objectives, the specific technical solution of the impact-resistant photovoltaic panel frame module of the present invention is as follows:

[0008] An impact-resistant photovoltaic panel frame assembly includes an elastic inner frame that circumferentially seals and wraps around the four edges of a photovoltaic panel. A fixing bracket for fixing the inner frame is provided on the outside of the inner frame. An outer frame is provided around the fixing bracket. The outer frame and the fixing bracket are connected by multiple spring clips.

[0009] Preferably, in order to improve the convenience and firmness of the connection between the inner frame and the photovoltaic panel and ensure the sealing effect between the two, the inner frame is a circumferentially closed frame structure, and the inner circumferential surface of the inner frame is provided with annular grooves for inserting and fitting the four edges of the photovoltaic panel.

[0010] Preferably, in order to improve the heat dissipation effect of the photovoltaic panel, the inner frame is injection molded from a mixture of rubber and thermally conductive metal powder.

[0011] Preferably, in order to improve the firmness of the inner frame and the photovoltaic panel and at the same time improve the protection effect of the photovoltaic panel, the fixing bracket includes two clamping frames that clamp the inner frame from the top and bottom sides respectively. The clamping frames are flush with the inner side of the inner frame, and the outer side of the clamping frames protrudes from the outer side of the inner frame. A support block is provided between the two inner frames, and the clamping frames are fixedly connected to the support block by screws.

[0012] Preferably, in order to improve the protection effect on the photovoltaic panel, the thickness of the support block is less than the thickness of the inner frame, the support block has an L-shaped structure and is distributed at the corners of the inner frame.

[0013] Preferably, in order to achieve an elastic connection between the inner frame and the outer frame and improve the impact buffering effect of the photovoltaic panel, the spring includes a fixed section and a wavy elastic section. The two ends of the fixed section are respectively fixedly connected to the two ends of the elastic section. The elastic section has multiple connecting grooves for inserting and cooperating with the outer edge of the clamping frame. The fixed section is detachably connected to the outer frame.

[0014] Preferably, in order to improve the ease of installation of the spring clip and the firmness of the connection, the outer frame is provided with multiple slots evenly distributed along its extension direction, and the fixing section is provided with a plug that engages with the slot.

[0015] Preferably, in order to improve the protection of the photovoltaic panel and the ease of installation, the bottom of the outer frame is provided with a flange, and the flange is provided with mounting holes.

[0016] Preferably, in order to improve the impact buffering effect of the photovoltaic panel and enhance the protection effect of the photovoltaic panel, multiple airbags are also provided between the outer frame and the inner frame. The airbags are located between the two clamping frames. The inner bottom wall of the annular groove is provided with a ventilation groove in the circumferential direction. The airbags are connected to the inner side of the ventilation groove.

[0017] Preferably, in order to improve the waterproof performance of the photovoltaic panel, the airbag is provided with a connecting pipe that connects to the inside of the ventilation groove, the connecting pipe is provided with a filter element, and the airbag is provided with an elastic ball and desiccant powder.

[0018] The impact-resistant photovoltaic panel frame assembly of the present invention has the following advantages: by sealing and wrapping the edge of the photovoltaic panel with an elastic inner frame, the waterproof performance of the photovoltaic panel can be improved. At the same time, the elastic inner frame can buffer the impact, thereby improving the impact resistance of the photovoltaic panel. The spring sheet can further buffer the impact received by the photovoltaic panel, further improving the impact resistance of the photovoltaic panel, thereby reducing the probability of damage to the photovoltaic panel during transportation and use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the photovoltaic panel frame assembly of the present invention;

[0020] Figure 2 This is a cross-sectional view of the photovoltaic panel frame assembly of the present invention;

[0021] Figure 3 This is a schematic diagram of the inner frame of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the fixing bracket of the present invention;

[0023] Figure 5 This is a schematic diagram of the outer frame of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection structure between the outer frame and the spring sheet of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation structure of the fixed bracket of the present invention;

[0026] Figure 8 This is a schematic diagram of the connection structure between the inner frame and the airbag of the present invention;

[0027] Figure 9 This is a schematic diagram of the spring sheet of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the airbag of the present invention;

[0029] Figure 11 This is a cross-sectional view of the airbag of the present invention;

[0030] Explanation of markings in the diagram: 1. Photovoltaic panel; 2. Inner frame; 3. Fixing bracket; 4. Spring; 5. Outer frame; 6. Airbag; 201. Annular groove; 301. Clamping frame; 302. Support block; 303. Protruding strip; 401. Elastic section; 402. Fixing section; 403. Insert block; 404. Connecting groove; 501. Slot; 502. Flange; 503. Mounting hole; 601. Connecting pipe; 602. Filter element; 603. Elastic ball; 604. Desiccant powder. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] The terms "top surface," "bottom surface," and "full surface" refer to the normal operating state of the photovoltaic panel frame assembly and are used only for the purpose of facilitating the description of the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] Photovoltaic modules are generally composed of photovoltaic cells, ultra-clear glass, encapsulating film, encapsulation backsheet, and aluminum alloy frame. During transportation and use, when photovoltaic modules are subjected to external impacts or vibrations, the glass and silicon cells are easily damaged and broken, leading to module failure. The frames of existing photovoltaic modules are usually made of aluminum alloy profiles, which are relatively hard and cannot buffer impacts during use, thus failing to provide effective protection for the photovoltaic panels.

[0034] To address the above issues, an impact-resistant photovoltaic panel frame module is proposed, see [link to relevant documentation]. Figure 1 and Figure 2 It includes an elastic inner frame 2 that circumferentially seals and wraps around the four edges of the photovoltaic panel 1. A fixing bracket 3 for fixing the inner frame 2 is provided on the outside of the inner frame 2. An outer frame 5 is provided on the outer periphery of the fixing bracket 3. The outer frame 5 is connected to the fixing bracket 3 by multiple spring pieces 4.

[0035] In the frame assembly of the photovoltaic panel 1, the inner frame 2 seals and wraps around the four edges of the photovoltaic panel 1, effectively sealing the edge gaps of the photovoltaic panel's layered structure and improving the waterproof performance of the photovoltaic panel 1. The elastic inner frame 2 also provides a cushioning effect, improving the impact resistance of the photovoltaic panel 1. The fixing bracket 3 is used to fix the inner frame 2 to the photovoltaic panel 1, improving the stability of the connection between the inner frame 2 and the photovoltaic panel 1. At the same time, the fixing bracket 3 surrounds the photovoltaic panel 1, providing effective protection for the photovoltaic panel 1. The outer frame 5 is connected to the fixing bracket 3 through the spring piece 4. The outer frame 5 is located on the outermost layer of the photovoltaic panel 1, also providing protection for the photovoltaic panel 1. At the same time, the outer frame 5 can be fixed to the mounting surface, improving the ease of installation of the photovoltaic panel 1. The photovoltaic panel 1 can also be moved by holding the outer frame 5. The spring piece 4 is used to achieve an elastic connection between the outer frame 5 and the fixing bracket 3, providing a further cushioning effect while achieving the connection between the two.

[0036] Compared with existing frame components, the frame component of the photovoltaic panel 1 achieves double buffering through the inner frame 2 and the spring sheet 4, which improves the impact resistance of the photovoltaic panel 1 and reduces the probability of damage and breakage during handling or use; the fixing bracket 3 and the outer frame 5 can further protect the photovoltaic panel 1 while realizing its installation.

[0037] Further improvements are as follows, see Figure 3 The inner frame 2 is a circumferentially closed frame structure. The inner circumferential surface of the inner frame 2 is provided with annular grooves 201 for inserting and mating with the four edges of the photovoltaic panel 1. During installation, due to the elasticity of the inner frame 2, it can be opened and fitted around the four edges of the photovoltaic panel 1, so that the edges of the photovoltaic panel 1 are located inside the annular grooves 201. This ensures a tight seal between the inner walls of the annular grooves 201 and the top and bottom surfaces of the photovoltaic panel 1, improving the waterproof performance of the photovoltaic panel 1. The closed frame structure of the inner frame 2 reduces gaps, further improving its waterproof performance, while also making it more robust and reliable, extending its service life.

[0038] In the structure of the inner frame 2 described above, a chamfer can also be provided on the inner side of the inner frame 2. This can prevent the formation of a step structure between the inner frame 2 and the top and bottom surfaces of the photovoltaic panel 1. The chamfer can also help to better drain water from the top surface of the photovoltaic panel 1, thereby reducing the chance of water seeping into the interior of the photovoltaic panel 1 and reducing its failure rate.

[0039] A further improvement is that the inner frame 2 is injection molded from a mixture of rubber and thermally conductive metal powder. Rubber is a flexible material with good sealing properties and elasticity, providing excellent cushioning and impact resistance. The rubber inner frame 2 ensures a tight seal for the photovoltaic panel 1, enhancing its waterproof performance, while its impact resistance further protects the photovoltaic panel 1. The injection molding method facilitates the integral molding of the inner frame 2, improving its structural strength and extending its service life. The thermally conductive metal powder mixed within the rubber can be copper or aluminum powder, thus improving the thermal conductivity of the inner frame 2, thereby enhancing the heat dissipation performance of the photovoltaic panel 1, ensuring it operates at a suitable temperature, increasing its power generation efficiency, and reducing its failure rate.

[0040] Further improvements are as follows, see Figure 3 The fixed bracket 3 includes two clamping frames 301 that clamp the inner frame 2 from the top and bottom sides respectively. The clamping frames 301 are flush with the inner side of the inner frame 2, and the outer side of the clamping frames 301 protrudes from the outer side of the inner frame 2. A support block 302 is provided between the two inner frames 2. The clamping frames 301 are fixedly connected to the support block 302 by screws.

[0041] In use, the two clamping frames 301 clamp the inner frame 2 from the top and bottom, respectively, so that the inner frame 2 and the photovoltaic panel 1 are tightly fitted together. This not only improves the sealing performance between the inner frame 2 and the photovoltaic panel 1, but also enhances the firmness of the connection between the two. A support block 302 is provided between the two inner frames 2. The clamping frames 301 are fixedly connected to the support block 302 by screws, thereby achieving mutual fixation between the two clamping frames 301. At the same time, the support block 302 can abut against the four sides of the inner frame 2, thereby achieving the alignment between the clamping frame 301 and the inner frame 2 and improving the installation accuracy of the inner frame 2 and the fixed bracket 3.

[0042] In the aforementioned clamping frame 301, a protruding strip 303 can also be distributed on the side of the clamping frame 301 adjacent to the inner frame 2. The protruding strip 303 can increase the friction between the clamping frame 301 and the inner frame 2, preventing relative displacement between the inner frame 2 and the clamping frame 301 after installation, thus preventing misalignment between the two and ensuring the sealing and buffering performance of the inner frame 1. Of course, in order to match the chamfer setting of the inner side of the inner frame 2, a chamfer can also be set on the inner side of the clamping frame 301, so that the chamfered surface of the inner frame 2 and the chamfered surface of the clamping frame 301 are located in the same plane, so that the chamfered surfaces of the two can achieve continuous and flat connection, which is conducive to the drainage of water on the surface of the photovoltaic panel 1.

[0043] Further improvements are as follows, see Figure 3 The thickness of the support block 302 is less than the thickness of the inner frame 2. The support block 302 has an L-shaped structure and is distributed at the corners of the inner frame 2. The thickness of the support block 302 is less than the thickness of the inner frame 2 but greater than the thickness of the photovoltaic panel 1. In this way, the minimum distance between the two clamping frames 301 can be controlled by the support block 302, avoiding excessive pressure on the photovoltaic panel 1 after the clamping frames 301 are clamped, and reducing the probability of damage to the photovoltaic panel 1. Since the right angle of the photovoltaic panel 1 is more prone to damage, the L-shaped support block 302 can wrap around the right angle of the photovoltaic panel 1 to protect it and prevent damage, thereby reducing the probability of damage to the photovoltaic panel 1.

[0044] Further improvements are as follows, see Figure 9The spring piece 4 includes a fixed section 402 and a wavy elastic section 401. The two ends of the fixed section 402 are fixedly connected to the two ends of the elastic section 401. The elastic section 401 has multiple connecting grooves 404 for inserting into and engaging with the outer edge of the clamping frame 301. The fixed section 402 is detachably connected to the outer frame 5. The spring piece 4 is made of spring steel, giving it both good strength and good elasticity. The fixed section 402 and the end of the elastic section 401 are integrally formed, creating a continuous overall structure and improving the overall robustness of the spring piece 4. In use, multiple spring pieces 4 are axially spaced along the outer edge of the fixed bracket 3. The edges of the two clamping frames 301 are inserted into the connecting grooves 404 on the spring piece 4, thus connecting the spring piece 4 to the fixed bracket 3. The fixed section 402 of the spring piece 4 is fixed to the inner side of the outer frame 5, thereby connecting the fixed bracket 3 and the outer frame 5 through the spring piece 4.

[0045] The wavy elastic segment 401 can deform in the vertical direction and also in the horizontal direction, and the clamping frame 301 can slide inside the connecting groove 404, so that the spring sheet 4 can buffer the photovoltaic panel 1 in any direction, ensuring the buffering effect of the photovoltaic panel 1; and the inner frame 2 can also deform in the horizontal and vertical directions, and can also buffer the photovoltaic panel 1 in any direction, further ensuring the buffering effect of the photovoltaic panel 1.

[0046] Further improvements are as follows, see Figure 5 and Figure 6 The outer frame 5 has multiple slots 501 evenly distributed along its extension direction. The fixed section 402 is provided with a plug 403 that engages with the slot 501. The bottom of the outer frame 5 has a flange 502 with mounting holes 503. The slots 501 and plugs 403 improve the ease of installation between the spring 4 and the outer frame 5. Under the action of the spring 4's horizontal elastic force, the plug 403 is prevented from detaching from the slot 501, improving the reliability of the connection. The flange 502 provides support for the spring 4 from the bottom, improving the stability of the spring 4 and preventing the photovoltaic panel 1 from falling downward from the inside of the outer frame 5. The mounting holes on the flange 502 can be fitted with expansion bolts to facilitate the installation of the outer frame 5 on the mounting surface.

[0047] When assembling the photovoltaic panel 1 with the frame assembly, the spring 4 is first inserted and connected to the outer frame 5, the inner frame 2 is placed on the photovoltaic panel 1, and the fixing bracket 3 is installed to reinforce the inner frame 2. Then, the photovoltaic panel 1 is placed inside the outer frame 5, and the fixing bracket 3 is inserted and connected to the spring 4. The method of inserting the spring 4 and the fixing bracket 3 to install the photovoltaic panel 1 can improve the convenience of photovoltaic panel 1 installation. Furthermore, through the deformation of the spring 4 and the design of multiple connecting slots 404 distributed from top to bottom, it can be adapted to the installation of photovoltaic panels 1 of different sizes and thicknesses, further improving the convenience of using the frame assembly.

[0048] Further improvements are as follows, see Figure 7 , Figure 8 and Figure 10 Multiple airbags 6 are also provided between the outer frame 5 and the inner frame 2. The airbags 6 are located between the two clamping frames 301. The inner bottom wall of the annular groove 201 is provided with a ventilation groove in the circumferential direction. The airbags 6 are connected to the inner side of the ventilation groove.

[0049] When the airbag 6 is installed, the parts of the two clamping frames 301 protruding from the outer side of the inner frame 2 can limit the airbag 6 from the top and bottom. At the same time, the outer frame 5 and the inner frame 2 can limit the airbag 6 from the left and right sides, improving its installation firmness. The airbag 6 can further buffer the photovoltaic panel 1 and the outer frame 5, improve the impact resistance of the photovoltaic panel 1, and reduce the probability of damage. The airbag 6 can also buffer from multiple directions, improving the buffering effect on the photovoltaic panel 1.

[0050] The venting channel is a continuous annular gas passage located between the inner frame 2 and the photovoltaic panel 1. It connects the airbag 6 to the venting channel, allowing air inside the airbag 6 to be compressed and enter the venting channel, creating a positive pressure state inside. This prevents moisture from entering through the gap between the inner frame 2 and the photovoltaic panel 1, improving the waterproof performance of the photovoltaic panel 1. Simultaneously, when the seal between the photovoltaic panel 1 and the inner frame 2 fails, the air inside the airbag 6 can escape through the leak. After the air is released, the airbag 6 will contract and relax. During inspections, staff can observe the surface condition of the airbag 6 to understand the sealing status between the inner frame 2 and the photovoltaic panel 1. In case of seal failure... When the photovoltaic panel is installed, it can be repaired in a timely manner, thereby reducing losses. After the photovoltaic panel is installed, under the influence of the external natural environment, the photovoltaic panel 1 and the outer frame 5 will move relative to each other. In this way, the outer frame 5 and the photovoltaic panel 1 can squeeze the multiple airbags 6 set between them, thereby causing the air between the ventilation slot and the airbags 6 to flow. The airflow can evenly conduct the heat generated by the photovoltaic panel 1 to all parts of the inner frame 2. The heat is dissipated through the inner frame 2 and the fixed bracket 3, improving the heat dissipation effect of the photovoltaic panel 1. The structure of the spring 4 can also increase the heat dissipation area of ​​the inner frame 2 and the fixed bracket 3, further improving the heat dissipation effect of the photovoltaic panel 1.

[0051] Further improvements are as follows, see Figure 11 The airbag 6 is equipped with a connecting pipe 601 that connects to the inside of the ventilation groove. A filter element 602 is installed inside the connecting pipe 601. The airbag 6 contains an elastic ball 603 and desiccant powder 604. When gas flows between the airbag 6 and the ventilation groove, the desiccant powder 604 dries the air, thereby improving the waterproof performance of the photovoltaic panel 1. The elastic ball 603 and desiccant powder 604 only occupy a portion of the space inside the airbag 6, allowing the airbag 6 to contract and expand normally under pressure, ensuring its buffering effect. When the airbag 6 contracts and expands, the elastic ball 603 and desiccant powder 604 inside the airbag 6 move, creating a mixing effect. This allows the desiccant powder 604 to contact the airflow evenly, improving the drying effect and preventing clumping, further enhancing the drying effect.

[0052] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. An impact-resistant photovoltaic panel frame assembly, characterized in that, The device includes an elastic inner frame (2) that circumferentially seals and wraps around the edges of the photovoltaic panel (1). A fixing bracket (3) for fixing the inner frame (2) is provided on the outside of the inner frame (2). An outer frame (5) is provided on the outer periphery of the fixing bracket (3). The outer frame (5) is connected to the fixing bracket (3) by multiple spring pieces (4). The inner frame (2) is a circumferentially closed frame structure, and the inner circumferential surface of the inner frame (2) is provided with an annular groove (201) for inserting and fitting the four edges of the photovoltaic panel (1). The fixed bracket (3) includes two clamping frames (301) that clamp the inner frame (2) from the upper and lower sides respectively. The clamping frames (301) are flush with the inner side of the inner frame (2), and the outer side of the clamping frames (301) protrudes from the outer side of the inner frame (2). A support block (302) is provided between the two inner frames (2). The clamping frames (301) are fixedly connected to the support block (302) by screws. The spring (4) includes a fixed section (402) and a wavy elastic section (401). The two ends of the fixed section (402) are fixedly connected to the two ends of the elastic section (401). The elastic section (401) has multiple connecting grooves (404) for inserting and cooperating with the outer edge of the clamping frame (301). The fixed section (402) is detachably connected to the outer frame (5). The outer frame (5) has a plurality of slots (501) evenly distributed along its extension direction, and the fixed section (402) is provided with a plug (403) that is inserted and engaged with the slot (501). Multiple airbags (6) are also provided between the outer frame (5) and the inner frame (2). The airbags (6) are located between the two clamping frames (301). The inner bottom wall of the annular groove (201) is provided with a ventilation groove in the circumferential direction. The airbags (6) are connected to the inner side of the ventilation groove.

2. The impact-resistant photovoltaic panel frame assembly of claim 1, wherein, The inner frame (2) is injection molded from a mixture of rubber and thermally conductive metal powder.

3. The impact-resistant photovoltaic panel frame assembly according to claim 1, characterized in that, The thickness of the support block (302) is less than the thickness of the inner frame (2). The support block (302) has an L-shaped structure and is distributed at the corners of the inner frame (2).

4. The impact-resistant photovoltaic panel frame assembly according to claim 1, characterized in that, The outer frame (5) has a flange (502) circumferentially provided at the bottom, and the flange (502) has a mounting hole (503).

5. The impact-resistant photovoltaic panel frame assembly according to claim 1, characterized in that, The airbag (6) is provided with a connecting pipe (601) that connects to the inside of the ventilation groove. A filter element (602) is provided inside the connecting pipe (601). An elastic ball (603) and desiccant powder (604) are provided inside the airbag (6).

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