A corner code for a solar module frame, a solar module frame and a solar module

Abstract

The utility model provides a kind of corner brace for solar module frame, solar module frame and solar module, including short frame insertion part, long frame insertion part, short frame limiting part and long frame limiting part are respectively equipped between short frame insertion part and long frame insertion part;The end surface 1A end surface of short frame limiting part side close to short frame insertion part has distance d1 between the intersection point of long axis 1C and 2C of short frame insertion part and long frame insertion part, and the upper edge of short frame limiting part is flush with or lower than the upper surface 3A of solar module, so that the solar module after being assembled forms a notch in the both ends of short frame section bar;The setting of notch can make rain water flow away in time, and can effectively reduce the influence caused by waterlogging and waterlogging dryness, overcome the closed convex edge formed by the frame connected by the invisible corner brace of prior art, easily eliminate the adverse effects caused by waterlogging and waterlogging dryness stain.

Description

Technical Field

[0001] This utility model relates to the field of solar photovoltaic module technology, specifically to a corner bracket for a solar module frame, a solar module frame, and a solar module. Background Technology

[0002] When photovoltaic (PV) modules are installed outdoors or on rooftops, the A-side of the module's frame is significantly higher than the glass surface, making it very easy for rainwater to accumulate at the frame area. Both the accumulated water and the resulting blemishes after drying negatively impact the PV module's power generation efficiency. This is particularly problematic in distributed PV systems, where many power plants are built on the roofs of industrial and commercial buildings. These buildings often have corrugated steel roofs with a slope of around 5°. When PV modules are installed on such roofs, the gentle slope and the raised frame further exacerbate the problem, making the frame area highly susceptible to water accumulation and the resulting blemishes after drying (such as...). Figure 1 (As shown). Water accumulation or water stains can affect power generation, causing a decrease in output, and in severe cases, can even cause hot spots and fires. Therefore, to reduce the impact of water accumulation and water stains, it is necessary to spend manpower and resources to clean the modules regularly. To address this, many photovoltaic module manufacturers are now trying to find ways to solve or optimize these issues. For example, the current market standard is to design the short frame flush with the top surface of the solar cells (no A-side design), using silicone sealant to bond the short frame and the solar cells together. However, this can lead to sealant overflow at the contact line between the top surface of the photovoltaic module and the short frame, which is unacceptable. Furthermore, the lack of an A-side significantly reduces the module's resistance to backwind pressure, posing a safety hazard under harsh weather conditions. Utility Model Content

[0003] The purpose of this utility model is to provide a corner bracket for a solar module frame, a solar module frame, and a solar module in order to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides a corner bracket for a solar module frame, used to connect two short upper and lower frames and two long left and right side frames into a single solar module frame, comprising:

[0005] The short frame insert is used to be inserted into the cavity of the short frame profile;

[0006] The long frame insert is used to be inserted into the cavity of the long frame profile;

[0007] A short-frame limiting part and a long-frame limiting part are respectively provided between the short-frame insertion part and the long-frame insertion part;

[0008] The end face 1A of the short frame limiting part on the side of the short frame insertion part has a distance d1 between the intersection of the long axis 1C and 2C of the short frame insertion part and the long frame insertion part, and the upper edge of the short frame limiting part is flush with or lower than the upper surface 3A of the solar module, so that the assembled solar module forms a notch at both ends of the short frame profile.

[0009] and / or,

[0010] The end face 2A of the long frame limiting part on the side of the long frame insertion part has a distance d2 between the intersection of the long frame insertion part and the long axis 1C and 2C of the long frame insertion part, and the upper edge of the long frame limiting part is flush with or lower than the upper surface 3A of the solar module, so that the assembled solar module forms a notch at both ends of the long frame profile.

[0011] The notch design allows rainwater to drain away promptly, preventing water accumulation. This effectively reduces the impact of water accumulation and the resulting stains after the water dries. It overcomes the closed, raised edges formed by the invisible corner bracket connection in existing technologies, making it easier to eliminate water accumulation and the adverse effects of dried water stains.

[0012] Furthermore, the 1A end face is perpendicular to the long axis 1C of the short frame insertion part.

[0013] Furthermore, the inner side 2A1 of the end face 2A of the long frame limiting part near the long frame insertion part is flush with the inner side 1D of the short frame limiting part.

[0014] Furthermore, the 2A end face forms a 45° angle with the long axis 2C.

[0015] Furthermore, the upper end face 2B of the long frame limiting part has the same shape and height as the A side of the long frame profile.

[0016] Furthermore, the frame of the solar module is integrally formed using corner brackets.

[0017] A solar module frame, the solar module frame including two short frames at the top and bottom and two long frames on the left and right sides, and also including any of the above-mentioned corner brackets for the solar module frame.

[0018] Furthermore, the thickness of the A-side of the short frame is less than 1.5mm and the width is less than 6mm.

[0019] Furthermore, the long frame is adapted to the shape of the 2A end face for a snug fit.

[0020] A solar module, using any of the above-mentioned solar module frame corner brackets, or the above-mentioned solar module frame. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the frame of a solar module with a large A-side in the prior art;

[0022] Figure 2 , 3 4 is a schematic diagram of one embodiment of the corner bracket for the frame of the solar module of this utility model.

[0023] The component names represented by the labels in the diagram are as follows:

[0024] Short frame insertion part 1, long frame insertion part 2, short frame limiting part 11, upper edge 12 of short frame limiting part 1, long frame limiting part 21, short frame profile 4, short frame profile 4, long frame profile 5, notch 6. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] like Figure 2 and 3 As shown, a corner bracket for a solar module frame is used to connect two short upper and lower borders and two long left and right side borders to form a solar module frame, comprising:

[0027] The short frame insertion part 1 is used to be inserted into the cavity of the short frame profile 4;

[0028] The long frame insertion part 2 is used to be inserted into the cavity of the long frame profile 5;

[0029] A short frame limiting part 11 and a long frame limiting part 21 are respectively provided between the short frame insertion part 1 and the long frame insertion part 2;

[0030] The end face 1A of the short frame limiting part 11 on the side of the short frame insertion part 1 has a distance d1 between the intersection of the long axis 1C and 2C of the short frame insertion part 1 and the long frame insertion part 2, and the upper edge 12 of the short frame limiting part 11 is flush with or lower than the upper surface 3A of the solar module 3, so that the assembled solar module 3 forms a short frame side notch 6 at both ends of the short frame profile 4.

[0031] In some embodiments, a notch may be formed separately or simultaneously on one side of the long border (not shown in the figure), specifically:

[0032] The end face 2A of the long frame limiting part 21 on the side of the long frame insertion part 2 is spaced d2 away from the intersection of the long frame insertion part 2 and the long axis 1C and 2C of the long frame insertion part 2. The upper edge 22 of the long frame limiting part 21 is flush with or lower than the upper surface 3A of the solar module 3, so that the assembled solar module 3 forms a long frame side notch at both ends of the long frame profile 5. The lower edge of this notch should not be higher than the upper edge of surface A formed by the short frame.

[0033] Due to the presence of d1 or d2 (not shown in the figure), the two ends of the short frame cannot contact the long frame to form a closed structure, and the corner part of the corner code is exposed, which is completely different from the traditional hidden corner code. At the same time, the upper edge 12 and / or the upper edge 22 are flush with or lower than the upper surface 3A of the solar module 3 (generally the upper surface of the upper encapsulation glass), forming a gap at this point. The setting of the gap allows rainwater to flow away from the gap in time, preventing water accumulation. This can effectively reduce the impact of water accumulation and the stains formed after the water dries. It overcomes the closed raised edge formed by the frame of the invisible corner code connection in the existing technology, and easily eliminates the adverse effects of water accumulation and the stains caused by the drying of water.

[0034] In some embodiments, the 1A end face is perpendicular to the long axis 1C of the short frame insertion part 1, so that the end face of the short frame profile 4 can be normally cut vertically without excessive processing steps, and the notch is rectangular. Of course, the two can also be mutually fitted beveled surfaces, so that the notch is trapezoidal, preferably with the long base of the trapezoid on the side (inner side) of the photovoltaic module, similar to a funnel shape, to facilitate the drainage of accumulated water.

[0035] In some embodiments, the inner side 2A1 of the end face 2A of the long frame limiting portion 21 near the long frame insertion portion 2 is flush with the inner side 1D of the short frame limiting portion 11. For example... Figure 2 As shown, the glue reservoir (adhesive surface) that contacts the side of the corner bracket and the component is only retained on the short frame side, and the glue reservoir is no longer retained on the long frame side. During installation, the corner bracket and the short frame are inserted first, and then the component and the long frame are installed.

[0036] In some embodiments, the 2A end face forms a 45° angle with the long axis 2C. The corresponding end face of the long frame is also processed into a 45° bevel shape that fits it. This makes it easier to ensure that the glue reservoir (adhesive surface) that contacts the corner bracket with the side of the component is only retained on the short frame side, and the glue reservoir is no longer retained on the long frame side of the corner bracket, so as to improve the adhesive effect and prevent gaps or overflow at the corner.

[0037] In some embodiments, the upper end face 2B of the long frame limiting part 21 has the same shape and height as the A side of the long frame profile 5. In this way, the long frame limiting part 21 and the long frame profile can be connected naturally, which is more aesthetically pleasing.

[0038] In a preferred embodiment, the frame of the solar module is integrally formed using corner brackets to ensure its strength and durability.

[0039] A solar module frame, the solar module frame including two short frames at the top and bottom and two long frames on the left and right sides, and also including any of the above-mentioned corner brackets for the solar module frame.

[0040] In some embodiments, the thickness of the A-side of the short frame is less than 1.5 mm and the width is less than 6 mm. Using a small A-side structure of the aforementioned dimensions in the short frame can further reduce water and dust accumulation and facilitate manual cleaning. The combination of the small A-side of the short frame and the large A-side (traditional structure) of the long frame not only brings the aforementioned advantages but also overcomes the potential risk of insufficient reverse wind pressure bearing capacity caused by designs without an A-side.

[0041] Furthermore, the long frame is adapted to the shape of the 2A end face for a snug fit. As mentioned earlier, this results in a more aesthetically pleasing appearance.

[0042] In some embodiments, the A-side of the short frame has at least one through groove flush with the upper surface 3A of the solar module, forming an angle with its long axis. This allows for the formation of more than one groove on the lower short frame. Combined with the notches formed by the corner brackets on both sides of the short frame, this creates several openings for draining accumulated water, facilitating faster drainage. However, the disadvantage is that the short frame requires additional processing.

[0043] A solar module, using any of the above-mentioned solar module frame corner brackets, or the above-mentioned solar module frame.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A corner bracket for a solar module frame, used to connect two short frames at the top and bottom and two long frames on the left and right sides to form a solar module frame, comprising: The short frame insert (1) is used to insert into the cavity of the short frame profile (4); The long frame insert (2) is used to insert into the cavity of the long frame profile (5); Its features are: A short-border limiting part (11) and a long-border limiting part (21) are respectively provided between the short-border insertion part (1) and the long-border insertion part (2); The end face 1A of the short frame limiting part (11) on the side of the short frame insertion part (1) is at a distance d1 from the intersection of the long axis 1C and 2C of the short frame insertion part (1) and the long frame insertion part (2). The upper edge (12) of the short frame limiting part (11) is flush with or lower than the upper surface 3A of the solar module (3), so that the assembled solar module (3) forms a short frame side notch (6) at both ends of the short frame profile (4). and / or, The end face 2A of the long frame limiting part (21) on the side of the long frame insertion part (2) is at a distance d2 from the intersection of the long frame insertion part (2) and the long axis 1C and 2C of the long frame insertion part (2). The upper edge (22) of the long frame limiting part (21) is flush with or lower than the upper surface 3A of the solar module (3), so that the assembled solar module (3) forms a long frame side notch at both ends of the long frame profile (5).

2. The corner bracket for the frame of the solar module according to claim 1, characterized in that, The 1A end face is perpendicular to the long axis 1C of the short frame insertion part (1).

3. The corner bracket for the frame of the solar module according to claim 1, characterized in that, The inner side 2A1 of the end face 2A of the long frame limiting part (21) on the side of the long frame insertion part (2) is flush with the inner side 1D of the short frame limiting part (11).

4. The corner bracket for the frame of the solar module according to claim 3, characterized in that, The 2A end face forms a 45° angle with the long axis 2C.

5. The corner bracket for the frame of the solar module according to claim 3 or 4, characterized in that, The upper end face 2B of the long frame limiting part (21) has the same shape and height as the A side of the long frame profile (5).

6. The corner bracket for the frame of a solar module according to claim 5, characterized in that, The solar panel frame is integrally formed using corner brackets.

7. A solar module frame, characterized in that, The solar module frame includes two short frames at the top and bottom and two long frames on the left and right sides, and also includes corner brackets for any of the solar module frames described in claims 1-6.

8. The solar module frame according to claim 7, characterized in that, The thickness of the A-side of the short frame is less than 1.5mm, and the width is less than 6mm.

9. The solar module frame according to claim 7 or 8, characterized in that, The long frame is adapted to the shape of the 2A end face and is installed in a close fit.

10. The solar module frame according to claim 7 or 8, characterized in that, The short frame has an angle between its A-side and its long axis, and at least one through groove is formed that is flush with the upper surface 3A of the solar module.

11. A solar module, characterized in that, The solar module frame can be made using any of the corner brackets described in claims 1-6, or any of the solar module frames described in claims 7-9.

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