Buckle type frame structure of ash deposition prevention single-glass assembly

Abstract

The buckle type frame structure comprises frame strips, the frame strips are assembled through corner connectors to form a frame body, the top sides of the frame strips are provided with supporting faces horizontally extending towards the inner side of the frame body, the outer edges of the supporting faces are provided with side plates vertically extending upwards, the top sides of the side plates are provided with buckle eaves horizontally extending towards the inner side of the frame body, and the buckle eaves are connected with the supporting faces. The buckling eaves, the side plates and the supporting surfaces jointly form a fixing groove for accommodating the outer edge of the photovoltaic panel; wherein the thickness of the buckle brim ranges from 0.35 mm to 0.45 mm. According to the buckling type frame structure of the ash deposition prevention single-glass assembly, the frame strip structure with the thin buckling eaves arranged at the top is adopted, it is ensured that enough structural strength can effectively fix the position of a photovoltaic panel after installation, meanwhile, the blocking to rain wash is greatly reduced, and the service life of the photovoltaic panel is prolonged. Rainwater can flow through the connection transition area of the photovoltaic panel and the frame strip more smoothly, the smooth rainwater diversion can effectively take away accumulated dust and dirt, and dust accumulation at the bottom frame of the photovoltaic panel is avoided.

Description

Technical Field

[0001] This application relates to the field of photovoltaic installation technology, and in particular to a snap-fit ​​frame structure for a single-glass module that prevents dust accumulation. Background Technology

[0002] Photovoltaic panels, also known as solar panels, are key devices that directly convert light energy into electrical energy using the photovoltaic effect. In actual operation, especially in windy, sandy, and arid regions, dust easily accumulates on the surface of photovoltaic panels. This dust mainly comes from particulate matter and sand in the air. The accumulation of dust blocks sunlight, reducing the light transmittance of the photovoltaic panels and directly affecting the absorption and utilization of sunlight by the photovoltaic cells, leading to a significant decrease in the power generation efficiency of the photovoltaic power generation system.

[0003] To reduce the impact of dust accumulation on photovoltaic (PV) power generation efficiency, PV panels are currently installed at an angle, hoping that natural rainfall will wash away the surface dust. However, the frame structure of existing PV panels typically prioritizes strength and ease of installation, with the bottom frame often higher than the panel surface. This structure causes rainwater to carry dust to the bottom frame, where it accumulates and forms a dirt deposit. This dust accumulation at the frame is not only difficult to wash away by rainwater, but it also obstructs the effective power generation area of ​​the PV panel for a long time, further reducing power generation efficiency. Utility Model Content

[0004] To address the aforementioned issues, this application provides a snap-on frame structure for a single-glass module that enhances rainwater self-cleaning capabilities and reduces dust accumulation at the bottom edge of the frame.

[0005] To achieve the above objectives, this application designs a snap-fit ​​frame structure for a dust-accumulating single-glass module, including a frame strip. The frame strip is assembled using corner brackets to form a frame for encapsulating and fixing the photovoltaic panel. The top side of the frame strip is provided with a support surface extending horizontally inward to the inside of the frame. The outer edge of the support surface is provided with a side plate extending vertically upward. The top side of the side plate is provided with a gusset extending horizontally inward to the inside of the frame. The gusset, side plate, and support surface together form a fixing groove for receiving the outer edge of the photovoltaic panel. The thickness of the gusset is 0.35-0.45 mm.

[0006] A further option is that the thickness of the rim is 0.4 mm.

[0007] A further option is to provide a semi-circular protrusion on the inner side of the buckle.

[0008] A further option is that the upper and lower surfaces of the clasp are rounded to the side plate.

[0009] A further embodiment is that the bottom of the fixing groove is provided with a plurality of adhesive grooves extending along the length of the frame strip, and the plurality of adhesive grooves are arranged at intervals in the vertical direction on the side plate.

[0010] A further option is that the surface of the support surface is a wavy, uneven surface.

[0011] A further embodiment is that the hollow interior of the frame bar forms a through hole suitable for the insertion of the corner bracket, and the inner wall of the through hole is provided with a protruding structure suitable for locking with the straight tooth surface on the corner bracket.

[0012] A further embodiment is that the protruding structure includes a first protrusion and a second protrusion arranged at intervals along the length direction of the frame strip, two first protrusions arranged at intervals along the width direction of the frame strip, and the orthographic projections of the second protrusion and the two first protrusions in the length direction of the frame strip at least partially overlap.

[0013] A further embodiment is that the corner bracket has a hollow structure with several reinforcing ribs integrally formed inside; the inner wall of the through hole is provided with a raised rib suitable for contacting the outer surface of the corner bracket, the raised rib extends along the length direction of the frame strip, and the raised rib and the raised structure are respectively located on different side walls of the through hole.

[0014] The snap-on frame structure of the anti-dust-accumulation single-glass module designed in this application adopts a frame strip structure with a thin rim at the top. While ensuring sufficient structural strength to effectively fix the position of the photovoltaic panel after installation, it greatly reduces the obstruction to rainwater erosion, allowing rainwater to flow more smoothly through the connection transition area between the photovoltaic panel and the frame strip. This smooth rainwater flow can effectively remove accumulated dust and dirt, preventing dust from accumulating at the bottom frame of the photovoltaic panel. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the frame provided in the embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the planar structure of the frame provided in the embodiment of this application.

[0017] Figure 3 yes Figure 2 Sectional view at point AA.

[0018] Figure 4 This is a schematic diagram of the structure of the corner bracket provided in the embodiment of this application.

[0019] Among them: frame strip 1, corner bracket 2, straight tooth surface 21, support surface 3, side plate 4, buckle 5, fixing groove 6, semi-circular convex strip 7, glue groove 8, through hole 9, protruding structure 10, first convex strip 11, second convex strip 12, reinforcing rib 13, convex rib 14. Detailed Implementation

[0020] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] like Figures 1 to 4 As shown in the figure, the snap-fit ​​frame structure of the anti-dust-accumulation single-glass module described in this embodiment is mainly composed of frame strips 1 and corner brackets 2. Specifically, four frame strips 1 are spliced ​​and assembled through corner brackets 2 to form a frame (not shown) for encapsulating and fixing the photovoltaic panel. In this embodiment, both the frame strips 1 and the corner brackets 2 are extruded from aluminum alloy profiles and have a preset cross-sectional shape.

[0022] The top side of the frame strip 1 is provided with a support surface 3 that extends horizontally into the inside of the frame. The support surface 3 serves as the main support structure for the edge of the photovoltaic panel. Its outer edge is provided with a side plate 4 that extends vertically upward. The height of the side plate 4 can be designed according to actual needs. In this embodiment, the main function of the side plate 4 is to limit the width of the fixing groove and provide a lateral support surface for the subsequent photovoltaic panel.

[0023] Furthermore, the top side of the side panel 4 is provided with a gusset 5 extending horizontally inward towards the inside of the frame. The gusset 5, the side panel 4, and the supporting surface 3 together form a fixing groove 6 that accommodates the outer edge of the photovoltaic panel. The fixing groove 6 serves to accommodate and fix the outer edge of the photovoltaic panel, achieving a reliable connection and seal between the photovoltaic panel and the frame. During actual installation, the outer edge of the photovoltaic panel is inserted into the fixing groove 6 and further fixed and sealed using sealant or other methods to ensure the overall waterproof performance and structural strength of the photovoltaic module.

[0024] In this embodiment, the thickness of the gusset 5 is 0.35-0.45 mm. Preferably, in a specific embodiment, the thickness of the gusset 5 is 0.4 mm. This thin design, compared to the practice of thickening the edges to form the adhesive groove in related technologies, significantly reduces the obstruction of the gusset 5 to natural rainwater erosion, allowing rainwater to flow more smoothly over the surface of the connection between the photovoltaic panel and the frame strip 1, and effectively removing dust and dirt, especially significantly reducing dust accumulation in the bottom frame area of ​​the photovoltaic panel.

[0025] In some embodiments, such as Figure 3 As shown, a semi-circular raised strip 7 is provided on the inner side of the buckle 5. The semi-circular raised strip 7 can effectively blunt the edge, eliminate sharp corners, and avoid the potential risks brought by sharp edges.

[0026] In some embodiments, such as Figure 3As shown, the upper and lower surfaces of the clasp 5 have rounded corners that transition to the side plate 4. Similarly, the rounded corner transitions can also blunt the edges at the connection between the clasp 5 and the side plate 4, eliminating sharp corners, reducing the risk of scratches to operators during production, transportation, and installation, and improving safety. In addition, the rounded corner transition between the lower surface of the clasp 5 and the inner side of the side plate 4 can enhance the structural strength of the clasp 5, preventing the clasp 5 from being prone to material fatigue, cracking, or even breakage.

[0027] In some embodiments, such as Figure 1 , Figure 3 As shown, the bottom of the fixing groove 6 is recessed with multiple adhesive grooves 8 extending along the length of the frame strip 1. These adhesive grooves 8 are arranged vertically at intervals on the side plate 4. The groove shape of the adhesive grooves 8 allows the sealant injected into the fixing groove 6 to embed within the grooves after curing, forming a mechanical engagement. This mechanical engagement force, combined with the adhesive force of the sealant, further enhances the seal's firmness and prevents seal failure due to vibration, temperature changes, or other factors.

[0028] In some embodiments, such as Figure 1 , Figure 3 As shown, the surface of the support surface 3 is a wavy, uneven surface. Compared to a smooth surface, the wavy, uneven surface can increase the effective contact area of ​​the sealant, enhance the adhesive strength of the sealant, and improve the connection between the photovoltaic panel and the frame.

[0029] In some embodiments, such as Figure 1 , Figure 4 As shown, the hollow interior of the frame strip 1 forms a through hole 9 suitable for the insertion of the corner bracket 2. A protruding structure 10 protrudes from the inner wall of the through hole 9, suitable for locking with the straight toothed surface 21 on the corner bracket 2. The through hole 9 penetrates the end of the frame strip 1, and its shape and size are adapted to the outer contour of the corner bracket 2, ensuring smooth insertion of the corner bracket 2. In this embodiment, the side of the corner bracket 2 is provided with a straight toothed surface 21 that engages with the protruding structure 10. The straight toothed surface 21 can be a toothed structure or ridge machined on the surface of the corner bracket 2, and its tooth shape or ridge shape is adapted to the shape of the protruding structure 10. When the corner bracket 2 is inserted into the through hole 9, the straight toothed surface 21 will mesh with the protruding structure 10 to achieve locking.

[0030] Specifically, such as Figure 1 , Figure 3 As shown, the protruding structure 10 includes a first protrusion 11 and a second protrusion 12 spaced apart along the length direction of the frame strip 1. Two first protrusions 11 are spaced apart along the width direction of the frame strip 1. The orthographic projections of the second protrusion 12 and the two first protrusions 11 in the length direction of the frame strip 1 at least partially overlap. This overlapping design can form a stepped or multi-segment locking structure, enhancing the reliability of locking.

[0031] In some embodiments, such as Figure 4 As shown, the corner bracket 2 has a hollow structure with several reinforcing ribs 13 integrally formed inside. The hollow corner bracket 2 achieves lightweight design while ensuring structural strength, reducing component weight. Furthermore, the internal reinforcing ribs 13 significantly improve the strength-to-weight ratio of the corner bracket 2, making it both lightweight and robust, capable of reliably bearing connection loads. In addition, the inner wall of the through hole 9 is provided with protruding ribs 14 suitable for contacting the outer surface of the corner bracket 2. The protruding ribs 14 extend along the length of the frame strip 1, and the protruding ribs 14 and the raised structure 10 are located on different side walls of the through hole 9. That is, the mutual cooperation and constraint between the protruding ribs 14 and the raised structure 10 enhances the stability of the corner bracket 2 within the through hole 9, reducing shaking and clearance.

[0032] The snap-on frame structure of the anti-dust-accumulation single-glass module provided in this application embodiment adopts a frame strip structure with a thin rim at the top. While ensuring sufficient structural strength to effectively fix the position of the photovoltaic panel after installation, it greatly reduces the obstruction to rainwater erosion, allowing rainwater to flow more smoothly through the connection transition area between the photovoltaic panel and the frame strip. This smooth rainwater flow can effectively remove accumulated dust and dirt, preventing dust from accumulating at the bottom frame of the photovoltaic panel.

[0033] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A buckle type frame structure of a dust-proof single glass module, comprising a frame strip, the frame strip is assembled by a corner code to form a frame body for packaging and fixing a photovoltaic panel, characterized in that, The top side of the frame strip is provided with a support surface extending horizontally to the inner side of the frame body, and the outer edge of the support surface is provided with a vertical upward extending side plate, and the top side of the side plate is provided with a horizontal downward extending buckle eave extending to the inner side of the frame body, and the buckle eave, the side plate and the support surface jointly form a fixing groove accommodating the outer edge of the photovoltaic panel; wherein the thickness of the buckle eave is 0.35-0.45mm.

2. The buckle frame structure of the anti-dust single glass module according to claim 1, characterized in that, The thickness of the buckle eave is 0.4mm.

3. The buckle frame structure of the anti-dust single-glass module according to claim 1, wherein, The inner side of the buckle eave is provided with a semicircular convex strip.

4. The buckle frame structure of the anti-dust single-glass module according to claim 1, wherein, The upper surface and the lower surface of the buckle eave are both circularly transitioned with the side plate.

5. The buckle frame structure of the anti-dust single-glass module according to claim 1, wherein, The groove bottom of the fixing groove is concavely provided with a plurality of glue grooves extending along the length direction of the frame strip, and the plurality of glue grooves are arranged on the side plate in the vertical direction.

6. The buckle frame structure of the anti-dust single-glass module according to claim 1, wherein, The surface of the support surface is a wavy concave-convex surface.

7. The buckle frame structure of the anti-dust single-glass module according to claim 1, wherein The inside of the frame strip is hollow to form a through hole suitable for the splicing of the corner code, and a convex structure suitable for locking with the straight tooth surface of the corner code is convexly arranged on the inner wall of the through hole.

8. The buckle frame structure of the anti-dust single-glass module according to claim 7, characterized in that, The convex structure includes a first convex strip and a second convex strip arranged at intervals along the length direction of the frame strip, and the first convex strip is arranged at intervals along the width direction of the frame strip.

9. The buckle frame structure of the anti-dust single-glass module according to claim 7, wherein, The corner code is a hollow structure, and a plurality of reinforcing ribs are integrally formed in the inside of the corner code; a convex rib suitable for contacting the outer surface of the corner code is convexly arranged on the inner wall of the through hole, the convex rib extends along the length direction of the frame strip, and the convex rib and the convex structure are respectively located on different side walls of the through hole.

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