Dust-proof photovoltaic frame

Abstract

The utility model discloses a kind of dust accumulation prevention photovoltaic frames, which include frame, the frame is divided into lower support plate, side plate, vertical plate and upper support plate from bottom to top, the upper part of side plate is provided with cambered surface, the cambered surface is inwardly downwardly inclined smooth curved surface, dust is not easy to accumulate here, when it rains, rainwater can wash away dust, a clamping wall is fixedly arranged above the upper support plate, the clamping wall and the side plate form a glue overflow notch, to avoid the appearance and performance of laminated parts being affected by the overflow of sealant, the clamping wall and the upper support plate form a mounting groove, and the laminated part is installed in the mounting groove. The laminated part is laminated by a battery piece, a plastic film, a back film and a photovoltaic glass plate structure layer and is arranged at a certain angle with the horizontal direction. A reinforcing tooth is formed at one end of the upper support plate away from the side plate. A 45° chamfer or a round corner is arranged at the corner of the upper support plate and the vertical plate to increase the connection and fixation between the laminated part and the frame. The device solves the problem of dust accumulation in the current frame.

Description

Technical Field

[0001] This utility model belongs to the field of solar photovoltaic module technology, specifically relating to a photovoltaic frame that prevents dust accumulation. Background Technology

[0002] Solar photovoltaic (PV) power generation, as a clean energy source, has been widely adopted. PV modules typically consist of a photovoltaic laminate (made of laminated glass, solar cells, backsheet, etc.) and a frame made of aluminum or other materials to encapsulate and secure the laminate. Traditional frames usually have an upward-opening "C" or "U" shaped mounting groove into which the edge of the photovoltaic laminate is inserted and secured.

[0003] However, this traditional structure has a significant drawback: the upper surface of the frame, especially near the mounting slot opening at the edge of the laminate, easily forms a horizontal platform or recessed area. Outdoors, particularly in windy, sandy, rainy, and snowy environments, dust, leaves, pollen, and other pollutants in the air, as well as rain and snow, will deposit and accumulate in this platform or recess. Long-term dust accumulation not only affects the aesthetics of the photovoltaic modules, but more importantly, the accumulated dust will flow with rainwater to the surface of the photovoltaic laminate, forming a difficult-to-clean mud strip that severely blocks light, leading to a decrease in module output power and impaired power generation efficiency. Furthermore, at certain angles, the dust accumulation at the top of the frame may even directly block light from the edge of the laminate. Therefore, this phenomenon has become a problem that urgently needs to be solved by those in the field. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic frame that prevents dust accumulation, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dust-proof photovoltaic frame, including a frame, which is divided into a lower support plate, a side plate, a vertical plate and an upper support plate from bottom to top. The upper part of the side plate is provided with an arc surface, which is a smooth curved surface that slopes downward inward. Dust is not easy to accumulate here, and rainwater can wash away the dust when it rains. The lower support plate is a long plate or a short plate.

[0006] The present invention further explains that a snap-fit ​​wall is fixedly provided above the upper support plate, and the snap-fit ​​wall and the side plate form an overflow groove to avoid the appearance and performance of the laminated parts being affected by the overflow of sealant.

[0007] This utility model further illustrates that the snap-fit ​​wall and the upper support plate form an installation groove, and a laminate is installed in the installation groove. The laminate is made of battery cells, adhesive film, back film and photovoltaic glass plate structure laminated and set at a certain angle with the horizontal direction. The upper support plate has a reinforcing tooth at the end away from the side plate to increase the connection and fixation between the laminate and the frame. The corner of the upper support plate and the vertical plate is provided with a 45° chamfer or rounded corner, which is beneficial to the back adhesive overflow and molding process.

[0008] The present invention further explains that the lower support plate, side plate, vertical plate and upper support plate are arranged in sequence to form a corner bracket slot with a rectangular cross section, and the various frames are connected and installed by corner brackets. Two sets of grooves are provided below the lower support plate.

[0009] This utility model further illustrates that when the connection between each of the frame pieces is installed using aluminum corner brackets, two sets of reinforcing ribs are provided on the inner wall of each corner bracket slot. The reinforcing ribs can improve the bending resistance and bear the weight of the component.

[0010] This utility model further illustrates that when the connection between each of the aforementioned frames is installed using composite material corner brackets, the inner wall of the corner bracket slot is smooth.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By providing the arc surface 6, dust is not easily accumulated here, and rainwater can wash away a small amount of dust when it rains; by providing the reinforcing teeth, the tight connection between the laminate and the frame is strengthened. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the cross-sectional structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention connected to the laminate; Figure 3 This is a schematic diagram of the short side structure of the lower support plate in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model; In the diagram: 1. Frame; 2. Lower support plate; 3. Upper support plate; 4. Side plate; 5. Vertical plate; 6. Curved surface; 7. Snap-fit ​​wall; 8. Glue overflow groove; 9. Laminated component; 10. Mounting groove; 11. Reinforcing tooth; 12. Corner bracket groove; 13. Reinforcing rib; 14. Groove. Detailed Implementation

[0013] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-5 The present invention provides a technical solution: a dust-proof photovoltaic frame, including a frame 1. The frame 1 is divided into a lower support plate 2, a side plate 4, a vertical plate 5 and an upper support plate 3 from bottom to top. The upper part of the side plate 4 is provided with an arc surface 6. The arc surface 6 is a smooth curved surface that slopes downward inward. Dust is not easy to accumulate here, and rainwater can wash away the dust when it rains. A snap-fit ​​wall 7 is fixedly installed above the upper support plate 3. The snap-fit ​​wall 7 and the side plate 4 form an overflow groove 8 to prevent the appearance and performance of the laminate 9 from being affected by the overflow of sealant. The snap-fit ​​wall 7 and the upper support plate 3 form an installation groove 10. The installation groove 10 is equipped with a laminate 9, which is made of battery cells, adhesive film, back film and photovoltaic glass plate structure laminated and set at a certain angle to the horizontal direction. The upper support plate 3 has a reinforcing tooth 11 at the end away from the side plate 4 to increase the connection and fixation between the laminate 9 and the frame 1. The corner of the upper support plate 3 and the vertical plate 5 is provided with a 45° chamfer or rounded corner, which is beneficial to the back adhesive overflow and molding process. The lower support plate 2, side plate 4, vertical plate 5 and upper support plate 3 are arranged in sequence to form a rectangular corner bracket slot 12, and the various frame plates 1 are connected and installed by corner brackets; Two sets of reinforcing ribs 13 are provided on the inner wall of the corner bracket slot 12. The reinforcing ribs 13 can improve the bending resistance and bear the weight of the component. Two sets of grooves 14 are provided below the lower support plate 2. The grooves 14 can reduce the material used in the frame 1, thereby reducing the cost.

[0015] Working Principle: This frame structure is suitable for composite material frames, aluminum frames, and steel frames. In operation, the laminate 9 is placed at a certain angle, and the frame 1 is installed below the laminate 9. The curved surface 6 is a smooth transition surface. When light pollutants such as dust and pollen in the air fall onto this curved surface 6, most pollutants cannot remain stably due to the lack of a horizontal platform or sharp concave corner for adhesion, and will naturally slide off under the influence of gravity, wind, or their own elasticity. For pollutants with stronger adhesion or rain and snow, when it rains, rainwater can form a smooth-flowing water film on the curved surface 6. This water film acts as a carrier, washing away any small amount of pollutants attached to the curved surface 6, thus achieving self-cleaning of the top of the frame 1.

[0016] Furthermore, the overflow groove 8 is used to accommodate and conceal sealant that may overflow during installation, maintaining the flatness and aesthetics of the junction and preventing the formation of new dust accumulation points due to irregular protrusions of the sealant. Meanwhile, the reinforcing ribs 13 distributed on each panel and the grooves 14 at the bottom optimize material distribution while ensuring the overall structural strength and rigidity of the frame 1, achieving the goals of lightweighting and low cost.

[0017] Example 1: Based on the structural framework of the above specific implementation, in this example, the connection between the frame 1 is installed using aluminum corner brackets, the reinforcing ribs 13 can improve the bending resistance, and the lower support plate 2 can be the long side (e.g., Figure 1-2 It can also be the shorter side (e.g.) Figure 3 ).

[0018] Example 2: Figure 4-5 As shown, the difference between this embodiment and Embodiment 1 is that the connection between each frame 1 is installed using composite material corner brackets, without the reinforcing rib 13 structure, and the lower support plate 2 can be the long side (e.g. Figure 5 It can also be the shorter side (e.g.) Figure 4 ).

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, 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, and therefore should not be construed as a limitation of this utility model.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dust-proof photovoltaic frame, comprising a frame (1), characterized in that: The frame (1) is divided into a lower support plate (2), a side plate (4), a vertical plate (5) and an upper support plate (3) from bottom to top. The upper part of the side plate (4) is provided with an arc surface (6). The arc surface (6) is a smooth curved surface that slopes downward inward. The lower support plate (2) is a long plate or a short plate.

2. The anti-dust photovoltaic frame according to claim 1, characterized in that: A snap-fit ​​wall (7) is fixedly installed above the upper support plate (3), and the snap-fit ​​wall (7) and the side plate (4) form an overflow groove (8).

3. The anti-dust photovoltaic frame according to claim 2, characterized in that: The snap-fit ​​wall (7) and the upper support plate (3) form an installation groove (10). The installation groove (10) is fitted with a laminate (9). The laminate (9) is made of battery cells, adhesive film, back film and photovoltaic glass plate structure laminated and set at a certain angle to the horizontal direction. The upper support plate (3) has a reinforcing tooth (11) at the end away from the side plate (4). The corner of the upper support plate (3) and the vertical plate (5) is provided with a 45° chamfer.

4. The anti-dust photovoltaic frame according to claim 3, characterized in that: The corner between the upper support plate (3) and the vertical plate (5) is rounded.

5. A photovoltaic frame for preventing dust accumulation according to claim 3, characterized in that: The lower support plate (2), side plate (4), vertical plate (5) and upper support plate (3) sequentially form a rectangular corner code slot (12). Each of the frame (1) is connected and installed by corner codes. Two sets of grooves (14) are provided below the lower support plate (2).

6. The anti-dust photovoltaic frame according to claim 5, characterized in that: When the connection between each of the frame (1) is installed using aluminum corner brackets, two sets of reinforcing ribs (13) are provided on the inner wall of the corner bracket slot (12).

7. A photovoltaic frame for preventing dust accumulation according to claim 5, characterized in that: When the connection between each of the frame (1) is installed using composite material corner brackets, the inner wall of the corner bracket slot (12) is smooth.

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