Dustproof photovoltaic module

Abstract

The utility model discloses an anti-dust photovoltaic assembly, and relates to the technical field of photovoltaic assemblies, the anti-dust photovoltaic assembly comprises a short frame, a long frame and a photovoltaic panel, the short frame comprises a frame main body 1 and a protruding part 1, the long frame comprises a frame main body 2 and a protruding part 2, and the top surfaces of the protruding part 1 and the protruding part 2 are A surfaces; the width and height of the short frame A face are smaller than those of the long frame A face, the height difference between the upper surface of the photovoltaic panel and the short frame A face is smaller than that between the upper surface of the photovoltaic panel and the long frame A face, and the short frame A face and the long frame A face are provided with arc-shaped slope faces in the directions of the ends, close to the photovoltaic panel, of the first protruding part and the second protruding part respectively. A dustproof film is arranged on the upper surface of panel glass of the photovoltaic panel. According to the utility model, the structure of the short frame is optimized, the thickness of the A surface of the short frame is reduced, the width is reduced, and the design of the dustproof film of the photovoltaic panel is combined, so that water drainage and dust accumulation of the photovoltaic module are well improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, specifically to a dust-proof photovoltaic module. Background Technology

[0002] Currently, when conventional photovoltaic modules are installed at a small tilt angle, dust particles accumulate at the edges of the modules due to the module frame being higher than the photovoltaic glass surface. Over time, this can form rainbow-like bands, which affect the module's light transmittance and consequently impact photovoltaic power generation efficiency.

[0003] To address the issue of dust accumulation on modules, one current industry solution is a short-frame design without an A-side. This structure ensures the edge of the short frame does not protrude above the module glass, thus providing better dust prevention. However, the seal between the short side of the module and the frame is less effective than that of a conventional frame with an A-side, posing a risk of rainwater and moisture infiltration. In other words, while existing short-frame designs without an A-side effectively solve the dust accumulation problem, they suffer from insufficient sealing performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dust-proof photovoltaic module, which solves the problems of easy dust accumulation in conventional photovoltaic modules and the poorer sealing performance of short-frame modules without an A-side compared to conventional modules with an A-side frame.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust-proof photovoltaic module, comprising a short frame, a long frame, and a photovoltaic panel. The short frame and the long frame form a square frame assembly and are fixed by corner brackets. The photovoltaic panel is encapsulated and fixed on the short frame and the long frame with encapsulating adhesive. The short frame includes a frame body one and a protrusion one. The long frame includes a frame body two and a protrusion two. The top surface of the protrusion one and the protrusion two is surface A, and the outer surface of the frame body one and the frame body two is surface B.

[0006] A groove is provided on the frame body 1. The B-side of the frame body 1 extends upward to form a protrusion 1. The protrusion 1 is formed by bending and extending horizontally from the upper end of the protrusion 1. The top surface of the frame body 1, the protrusion 1, and the protrusion 1 form a mounting groove 1. The side edge of the photovoltaic panel is inserted into the mounting groove 1. The inner side of the groove opening of the mounting groove 1 is provided with a concave arc-shaped surface. The encapsulating adhesive forms a three-sided seal of the top, bottom, and side along the concave arc-shaped surface inside the groove opening of the mounting groove 1.

[0007] The width and height of the short frame A are both smaller than the width and height of the long frame A. The height difference between the upper surface of the photovoltaic panel and the short frame A is smaller than the height difference between the upper surface of the photovoltaic panel and the long frame A. The A surfaces of the short frame and the long frame are respectively provided with arc-shaped slopes along the direction of the protrusion one and the protrusion two near the end of the photovoltaic panel.

[0008] The photovoltaic panel has a dustproof film on its upper surface glass, and the dustproof film includes a nano zinc oxide base film coated on the upper surface of the photovoltaic panel glass and a nano titanium dioxide film sprayed on the nano zinc oxide base film.

[0009] Preferably, a groove is provided on the frame body two, and the B-side of the frame body two extends upward to form a protrusion two. The protrusion two is formed by bending and extending horizontally from the upper end of the protrusion two. The top surface of the frame body two, the protrusion two, and the protrusion two form a mounting groove two. The side edge of the photovoltaic panel is inserted into the mounting groove two. The inner side of the groove opening of the mounting groove two is provided with a concave arc-shaped surface. The encapsulating adhesive forms a three-sided seal of the top, bottom, and side along the concave arc-shaped surface inside the groove opening of the mounting groove two.

[0010] Preferably, the height and width of the first and second frame bodies are the same, and the height of the first and second mounting slots are the same.

[0011] Preferably, the height of the short frame A-side is at least 2mm less than the height of the long frame A-side.

[0012] Preferably, the height difference between the upper surface of the photovoltaic panel and the short frame A is at least 2 mm less than the height difference between the upper surface of the photovoltaic panel and the long frame A.

[0013] Preferably, the width of the short border A-side is half the width of the long border A-side.

[0014] Preferably, the frame component formed by the short frame and the long frame has built-in corner brackets. The corner brackets are L-shaped, and anti-slip grooves are provided on the inner sides of both ends of the corner brackets. The two ends of the corner brackets are respectively inserted into the grooves corresponding to the opposite ends of the short frame and the long frame.

[0015] Preferably, the thickness of the nano zinc oxide base film is 20-50 nm, and the thickness of the nano titanium dioxide film is 100-200 nm.

[0016] This utility model has the following beneficial effects:

[0017] This invention optimizes the structure of the short frame. Compared with conventional frames and frames without an A-side, the thickness and width of the A-side of the short frame are reduced, creating a height difference with the A-side of the long frame, which forms a channel for drainage and dust removal. Compared with frames without an A-side, the sealing effect is better, providing both better sealing and better dust prevention. Combined with the design of the dustproof film for the photovoltaic panel, it has a good effect on improving drainage and dust accumulation of photovoltaic modules. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the short and long frame structures of this utility model;

[0019] Figure 2 This is an assembly diagram of the short frame and photovoltaic panel of this utility model;

[0020] Figure 3 This is an assembly diagram of the long frame and photovoltaic panel of this utility model;

[0021] Figure 4 This is an assembly drawing of the corner bracket of this utility model;

[0022] Figure 5 This is an unfolded diagram of the corner bracket assembly of this utility model;

[0023] Figure 6 This is a schematic diagram of the corner code structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the dustproof film structure on a photovoltaic panel.

[0025] In the diagram: 1. Short frame; 11. Frame body one; 111. Protrusion one; 12. Raised part one; 13. Mounting groove one; 2. Long frame; 21. Frame body two; 211. Protrusion two; 22. Raised part two; 23. Mounting groove two; 3. Photovoltaic panel; 4. Corner bracket; 41. Anti-slip groove; 5. Encapsulating adhesive; 6. Dustproof film; 61. Nano zinc oxide base film; 62. Nano titanium dioxide film. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-7 As shown, this utility model provides a technical solution: a dust-proof photovoltaic module, including a short frame 1, a long frame 2, and a photovoltaic panel 3. The short frame 1 and the long frame 2 form a square frame assembly and are fixed by corner brackets 4. The frame assembly formed by the short frame 1 and the long frame 2 has corner brackets 4 built in, and the corner brackets 4 are L-shaped. Anti-slip grooves 41 are provided on the inner sides of both ends of the corner brackets 4. The two ends of the corner brackets 4 are respectively inserted into the corresponding grooves at the opposite ends of the short frame 1 and the long frame 2. The photovoltaic panel 3 is sealed and fixed on the short frame 1 and the long frame 2 by encapsulating glue 5. The photovoltaic panel 3 is located inside the frame assembly. The short frame 1 includes a frame body 11 and a protrusion 12. The long frame 2 includes a frame body 21 and a protrusion 22. The top surface of the protrusion 12 and the protrusion 22 is surface A, and the outer surface of the frame body 11 and the frame body 21 is surface B. The height and width of the frame body 11 and the frame body 21 are the same.

[0028] A groove is provided on the frame body 11. The B-side of the frame body 11 extends upward to form a protrusion 111. A protrusion 12 is formed by bending and extending horizontally from the upper end of the protrusion 111. The top surface of the frame body 11, the protrusion 111 and the protrusion 12 form a mounting groove 13. The side edge of the photovoltaic panel 3 is inserted into the mounting groove 13. The inner side of the groove opening of the mounting groove 13 is provided with a concave arc surface. The encapsulating adhesive 5 forms a three-sided seal on the top, bottom and sides along the concave arc surface inside the groove opening of the mounting groove 13.

[0029] A groove is provided on the frame body 21. The B-side of the frame body 21 extends upward to form a protrusion 211. A protrusion 22 is formed by bending and extending horizontally from the upper end of the protrusion 211. The top surface of the frame body 21, the protrusion 211, and the protrusion 22 form a mounting groove 23. The mounting groove 13 and the mounting groove 23 have the same height. The side edge of the photovoltaic panel 3 is inserted into the mounting groove 23. The inner side of the groove opening of the mounting groove 23 is provided with a concave arc surface. The encapsulating adhesive 5 forms a three-sided seal on the top, bottom, and side along the concave arc surface inside the groove opening of the mounting groove 23.

[0030] The width and height of side A of the short frame 1 are both smaller than those of side A of the long frame 2. The height of side A of the short frame 1 is at least 2mm less than that of side A of the long frame 2, creating a height difference between side A of the long frame 2 and the short frame 1, forming a channel for drainage and dust removal, reducing dust accumulation. Compared to frames with a conventional side A, the drainage and dust removal effect is better; compared to frames without a side A, the sealing effect is better. The width of side A of the short frame 1 is half the width of side A of the long frame 2. Compared to frames with a conventional side A, it covers less of the edge of the photovoltaic panel 3; compared to frames without a side A, a small amount of the edge of the photovoltaic panel 3 is covered. Inserted into the groove, the encapsulating adhesive 5 can form a good seal between the edge of the photovoltaic panel 3 and the frame. The height difference between the upper surface of the photovoltaic panel 3 and the short frame 1A surface is less than the height difference between the upper surface of the photovoltaic panel 3 and the long frame 2A surface. The height difference between the upper surface of the photovoltaic panel 3 and the short frame 1A surface is at least 2mm less than the height difference between the upper surface of the photovoltaic panel 3 and the long frame 2A surface, forming a height difference, which facilitates drainage and dust removal and reduces dust accumulation. The A surfaces of the short frame 1 and the long frame 2 are respectively provided with arc-shaped slopes along the direction of the protrusion 12 and the protrusion 22 near the end of the photovoltaic panel 3.

[0031] A dustproof film 6 is provided on the upper surface of the glass panel of the photovoltaic panel 3, and the dustproof film 6 includes a nano zinc oxide base film 61 coated on the upper surface of the glass panel of the photovoltaic panel 3 and a hydrophilic nano titanium dioxide film 62 sprayed on the nano zinc oxide base film 61.

[0032] The nano-zinc oxide base film 61 has a thickness of 20-50 nm, and the nano-titanium dioxide film 62 has a thickness of 100-200 nm. The nano-titanium dioxide film 62 has a self-cleaning effect, reducing the adhesion and deposition of dust particles on the photovoltaic panel 3. The hydrophilic nano-titanium dioxide film 62 facilitates rainwater penetration into the gap between the dust particles and the nano-zinc oxide base film 61, making it easier for the dust particles to be carried away by rainwater. The nano-zinc oxide base film 61 enhances the bonding strength between the nano-titanium dioxide film 62 and the panel glass, preventing the nano-titanium dioxide film 62 from detaching due to wind and sand impact.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-proof photovoltaic module, comprising a short frame (1), a long frame (2), and a photovoltaic panel (3), wherein the short frame (1) and the long frame (2) form a square frame assembly and are fixed by corner brackets (4), and the photovoltaic panel (3) is encapsulated and fixed on the short frame (1) and the long frame (2) by encapsulating adhesive (5), characterized in that: The short frame (1) includes a frame body one (11) and a protrusion one (12), and the long frame (2) includes a frame body two (21) and a protrusion two (22). The top surface of the protrusion one (12) and the protrusion two (22) is surface A, and the outer surface of the frame body one (11) and the frame body two (21) is surface B. A groove is provided on the frame body (11). The B-side of the frame body (11) extends upward to form a protrusion (111). The protrusion (12) is formed by bending and extending horizontally from the upper end of the protrusion (111). The top surface of the frame body (11), the protrusion (111) and the protrusion (12) form a mounting groove (13). The side edge of the photovoltaic panel (3) is inserted into the mounting groove (13). The inner side of the mounting groove (13) is provided with a concave arc surface. The encapsulating adhesive (5) forms a three-sided seal on the top, bottom and side along the concave arc surface in the mounting groove (13). The width and height of the A-side of the short frame (1) are both smaller than the width and height of the A-side of the long frame (2). The height difference between the upper surface of the photovoltaic panel (3) and the A-side of the short frame (1) is smaller than the height difference between the upper surface of the photovoltaic panel (3) and the A-side of the long frame (2). The A-sides of the short frame (1) and the long frame (2) are respectively provided with arc-shaped slopes along the direction of the first protrusion (12) and the second protrusion (22) near the end of the photovoltaic panel (3). The photovoltaic panel (3) has a dustproof film (6) on the upper surface of the panel glass, and the dustproof film (6) includes a nano zinc oxide base film (61) coated on the upper surface of the panel glass of the photovoltaic panel (3) and a nano titanium dioxide film (62) sprayed on the nano zinc oxide base film (61).

2. The anti-dust photovoltaic module according to claim 1, characterized in that: The frame body 2 (21) is provided with a groove. The B-side of the frame body 2 (21) extends upward to form a protrusion 2 (211). The protrusion 2 (22) is formed by bending and extending horizontally from the upper end of the protrusion 2 (211). The top surface of the frame body 2 (21), the protrusion 2 (211) and the protrusion 2 (22) form a mounting groove 2 (23). The side edge of the photovoltaic panel (3) is inserted into the mounting groove 2 (23). The inner side of the groove opening of the mounting groove 2 (23) is provided with a concave arc surface. The encapsulating adhesive (5) forms a three-sided seal on the top, bottom and side along the concave arc surface inside the groove opening of the mounting groove 2 (23).

3. A dust-proof photovoltaic module according to claim 2, characterized in that: The height and width of the first frame body (11) and the second frame body (21) are the same, and the height of the first mounting slot (13) and the second mounting slot (23) are the same.

4. The anti-dust photovoltaic module according to claim 1, characterized in that: The height of the short frame (1) A side is at least 2mm less than the height of the long frame (2) A side.

5. A dust-proof photovoltaic module according to claim 1, characterized in that: The height difference between the upper surface of the photovoltaic panel (3) and the A side of the short frame (1) is at least 2 mm less than the height difference between the upper surface of the photovoltaic panel (3) and the A side of the long frame (2).

6. A dust-proof photovoltaic module according to claim 1, characterized in that: The width of the short border (1) A side is half the width of the long border (2) A side.

7. A dust-proof photovoltaic module according to claim 1, characterized in that: The frame assembly formed by the short frame (1) and the long frame (2) has a built-in corner bracket (4). The corner bracket (4) is L-shaped. Anti-slip grooves (41) are provided on the inner sides of both ends of the corner bracket (4). The two ends of the corner bracket (4) are respectively inserted into the grooves corresponding to the opposite ends of the short frame (1) and the long frame (2).

8. A dust-proof photovoltaic module according to claim 1, characterized in that: The thickness of the nano zinc oxide base film (61) is 20-50 nm, and the thickness of the nano titanium dioxide film (62) is 100-200 nm.

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