Frame and photovoltaic module

Abstract

The application discloses a frame and a photovoltaic module, a glue groove is used for initially containing glue, a deflection protrusion is arranged on one side of a top plate facing a support plate and is inclined to an outer side plate, so that a deflection protrusion closest to the outer side plate can perform deflection and buffering on the glue squeezed in the glue groove during frame assembly, the glue fills the glue groove solidly and then flows into a glue overflow groove, a deflection protrusion far from the outer side plate can again perform deflection and buffering on the glue, the glue fills each glue overflow groove solidly and then flows into a last glue overflow tail groove, the glue overflow tail groove contains the excess glue overflowing from the glue groove and the glue overflow groove, prevents the glue from overflowing from the side of the top plate, avoids front glue overflow of a laminated part, guarantees the aesthetic property, and since the glue groove, the glue overflow groove and the glue overflow tail groove can contain more glue, the connection strength of the laminated part and the frame is improved, and the reliability of the photovoltaic module is further guaranteed.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a frame and a photovoltaic module. Background Technology

[0002] With the continuous development of photovoltaic technology, photovoltaic modules, which are semiconductor devices that convert solar energy into electrical energy, have been rapidly developed. Photovoltaic power generation is a technology that directly converts light energy into electrical energy using the photovoltaic effect at the semiconductor interface, and it is currently the mainstream technology for generating electricity from solar energy. As photovoltaic power generation technology continues to advance and costs gradually decrease, the application areas of photovoltaic power generation are constantly expanding, including rooftop power generation, glass curtain wall power generation, and hydroelectric power generation, among others.

[0003] A solar photovoltaic (PV) power generation system consists of individual PV modules. The front of each PV module faces the sunlight to generate electricity. Therefore, during installation, PV modules are mounted on brackets to ensure stable installation.

[0004] During the manufacturing process of photovoltaic modules, photovoltaic laminates need to be inserted into the frame and then glued and fixed. However, traditional frames only have one overflow groove on the A-side (the top plate used by the frame to press the laminates together). During the frame assembly process, overflow of adhesive on the front (the top surface receiving sunlight) is prone to occur. Overflow of adhesive on the front side causes cleaning difficulties and high cleaning costs, which in turn leads to high overall manufacturing costs of photovoltaic modules and also results in an unsightly appearance. To avoid overflow of adhesive on the front side, the A-side is often not glued during frame assembly. However, after frame assembly, there will be a lack of adhesive on the front side, which may lead to the risk of failure in the reliability of the photovoltaic module. Utility Model Content

[0005] The purpose of this application is to provide a frame and photovoltaic module that can avoid adhesive overflow on the front of the laminate, ensuring aesthetics, and can also improve the connection strength between the laminate and the frame, thereby ensuring the reliability of the photovoltaic module.

[0006] The embodiments of this application can be implemented as follows:

[0007] In a first aspect, the present invention provides a frame, including an outer side plate, a top plate connected to the top edge of the outer side plate, and a support plate connected to the inner side of the outer side plate.

[0008] The top plate and the support plate are opposite each other, and the top plate, the outer side plate and the support plate together form a mounting groove for inserting the edge of the laminate;

[0009] The top plate has a blocking protrusion on the side away from the outer side plate that protrudes toward the support plate;

[0010] The top plate has at least two diversion protrusions on the side facing the support plate, and the protrusion direction of the diversion protrusions is inclined towards the outer side plate;

[0011] Along the width extension direction of the top plate, the diversion protrusions are arranged sequentially at intervals, and the protrusion height of each diversion protrusion gradually increases;

[0012] Each pair of adjacent diversion protrusions together with the top plate forms an overflow groove. The diversion protrusion closest to the outer side plate forms a glue application groove with the outer side plate, and the diversion protrusion farthest from the outer side plate forms an overflow tail groove with the blocking protrusion.

[0013] In an optional embodiment, the protrusion direction of the diversion protrusion is tilted at an angle of 30 to 45° relative to the top plate.

[0014] In an optional embodiment, the diversion protrusion includes a first side surface, a bottom surface, and a second side surface connected at an acute angle in sequence. The first side surface and the second side surface are parallel and opposite to each other in the width extension direction of the top plate. Both the first side surface and the second side surface are connected to the top plate at an acute angle, and the bottom surface is parallel to the top plate.

[0015] In an optional embodiment, there are rounded transitions between the first side and the top plate, between the first side and the bottom plate, between the bottom plate and the second side, and between the second side and the top plate.

[0016] In an optional embodiment, the distance between the diversion protrusion closest to the outer side plate and the outer side plate is greater than the distance between two adjacent diversion protrusions.

[0017] In an optional implementation, the number of the diversion protrusions is three.

[0018] In an optional embodiment, the three diversion protrusions are a first diversion protrusion, a second diversion protrusion, and a third diversion protrusion arranged sequentially along the width extension direction of the top plate, wherein the first diversion protrusion is closer to the outer side plate than the second diversion protrusion.

[0019] The height of the first diversion protrusion is 0.2~0.4mm, and the width is 0.5~1mm;

[0020] The second diversion protrusion has a protrusion height of 0.3~0.5mm and a width of 0.5~1mm;

[0021] The third diversion protrusion has a protrusion height of 0.5~1.0mm and a width of 0.5~1mm.

[0022] In an optional embodiment, the top plate is provided with an extension groove that communicates with the overflow groove, or the extension groove communicates with the overflow tail groove.

[0023] In an optional embodiment, the width of both the overflow groove and the overflow tail groove is 3-5 mm.

[0024] Secondly, this utility model provides a photovoltaic module, including the frame described in any of the foregoing embodiments.

[0025] Compared with the prior art, the beneficial effects of the embodiments of this application include, for example:

[0026] The glue-applying groove primarily serves to initially contain the glue. At least two diversion protrusions, angled towards the outer side of the top plate, are installed on the side of the top plate facing the support plate. The diversion protrusion closest to the outer side plate diverts and buffers the glue squeezed out of the glue-applying groove during frame assembly, ensuring the glue fills firmly before flowing into the overflow groove. One or more diversion protrusions further from the outer side plate can divert and buffer the glue again, ensuring the glue fills firmly in each overflow groove before flowing into the final overflow tail groove. The overflow tail groove then contains excess glue overflowing from the glue-applying and overflow grooves, preventing glue from spilling from the side of the top plate. This avoids glue overflow from the front of the laminate, ensuring aesthetics. Furthermore, since the glue-applying groove, overflow groove, and overflow tail groove can hold more glue, the connection strength between the laminate and the frame is improved, thus ensuring the reliability of the photovoltaic module. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional view of the border in the first embodiment of this application;

[0029] Figure 2 for Figure 1 A partial schematic diagram;

[0030] Figure 3 for Figure 1 A schematic diagram illustrating the assembly process of the middle frame and the laminated components;

[0031] Figure 4 for Figure 2 A schematic diagram of the angle formed by the central splitter protrusion and the top plate;

[0032] Figure 5 This is a cross-sectional view of the border in the second embodiment of this application;

[0033] Figure 6 This is a cross-sectional view of the border in the third embodiment of this application.

[0034] Icons: 100 - Outer side panel; 200 - Top panel; 210 - Diversion protrusion; 211 - First diversion protrusion; 212 - Second diversion protrusion; 213 - Third diversion protrusion; 214 - First side surface; 215 - Bottom surface; 216 - Second side surface; 220 - Glue application groove; 230 - Glue overflow groove; 231 - First overflow groove; 232 - Second overflow groove; 240 - Glue overflow tail groove; 250 - Blocking protrusion; 260 - Extension groove; 300 - Support plate; 400 - Mounting groove; 500 - Laminate; 600 - Glue liquid. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "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 based on the specific circumstances.

[0041] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0042] refer to Figures 1 to 6 This application discloses a photovoltaic module, which includes a frame and a laminate 500. The edge of the laminate 500 is inserted into the frame and fixed with adhesive.

[0043] In detail, the frame includes an outer panel 100, a top panel 200 connected to the top edge of the outer panel 100, and a support plate 300 connected to the inner side of the outer panel 100.

[0044] The top plate 200 and the support plate 300 are opposite each other, and the top plate 200, the outer side plate 100 and the support plate 300 together form a mounting groove 400 for the edge of the laminate 500 to be inserted.

[0045] The top plate 200 has a blocking protrusion 250 on the side away from the outer side plate 100 that protrudes toward the support plate 300;

[0046] The top plate 200 has at least two diversion protrusions 210 on the side facing the support plate 300, and the protrusion direction of the diversion protrusions 210 is inclined towards the outer plate 100.

[0047] Along the width extension direction of the top plate 200, the diversion protrusions 210 are arranged in sequence at intervals, and the protrusion height of each diversion protrusion 210 gradually increases.

[0048] It should be noted that the protrusion height of the diversion protrusion 210 is the height extending downward from the top plate 200 to the support plate 300.

[0049] Each pair of adjacent diversion protrusions 210 together with the top plate 200 forms an overflow groove 230. The diversion protrusion 210 closest to the outer side plate 100 forms an adhesive application groove 220 with the outer side plate 100. The diversion protrusion 210 furthest from the outer side plate 100 forms an overflow tail groove 240 with the blocking protrusion 250.

[0050] In this application, the glue-applying groove 220 primarily serves to initially contain the glue 600. At least two diversion protrusions 210, inclined towards the outer side plate 100, are provided on the side of the top plate 200 facing the support plate 300. The diversion protrusion 210 closest to the outer side plate 100 can divert and buffer the glue 600 squeezed in the glue-applying groove 220 during the framing process, ensuring the glue 600 is firmly filled in the glue-applying groove 220 before flowing into the overflow groove 230. One or more diversion protrusions 210 farther from the outer side plate 100 can further divert the glue 600. Alternatively, two or more diversions and buffering processes can be used to ensure that the adhesive 600 is firmly filled in each overflow groove 230 before flowing into the final overflow tail groove 240. The overflow tail groove 240 serves to accommodate excess adhesive 600 overflowing from the glue application groove 220 and the overflow groove 230, preventing the adhesive 600 from overflowing from the side of the top plate 200. This avoids adhesive overflow from the front of the laminate 500, ensuring aesthetics. Moreover, since the glue application groove 220, the overflow groove 230, and the overflow tail groove 240 can hold more adhesive 600, the connection strength between the laminate 500 and the frame can be improved, thereby ensuring the reliability of the photovoltaic module.

[0051] Optional, see reference Figures 1 to 4 The angle α of the protrusion direction of the diversion protrusion 210 relative to the top plate 200 is 30~45°, for example, any value within the range of 30°, 35°, 40° or 45°. This can avoid the problem that the diversion and buffering effect of the diversion protrusion 210 is not good due to α being too small, and the profile processing is difficult. It can also avoid the problem that the flow of the adhesive 600 gradually overflows from the glue dispensing groove 220 to each glue overflow groove 230 and glue overflow tail groove 240 due to α being too large, which would lead to the situation of insufficient adhesive on the front of the laminate 500. Thus, the flow of the adhesive 600 and the diversion and buffering effect are guaranteed at the same time.

[0052] Of course, in some embodiments, the tilt angle α can be less than 30° or greater than 45°, as long as the diversion protrusion 210 is tilted towards the outer side plate 100.

[0053] Optionally, the structural features of the diversion protrusion 210 are basically the same; please refer to [reference needed]. Figure 2Each diversion protrusion 210 includes a first side surface 214, a bottom surface 215, and a second side surface 216 connected at an acute angle in sequence. The first side surface 214 and the second side surface 216 are parallel and opposite to each other in the width extension direction of the top plate 200. The first side surface 214 and the second side surface 216 are both connected to the top plate 200 at an acute angle, and the bottom surface 215 is parallel to the top plate 200.

[0054] In this way, the two parallel sides form symmetrical inclined planes, which can effectively guide the flow of adhesive 600. The bottom surface 215, which is parallel to the top plate 200, can be fully pressed flat onto the laminate 500 by the solidified adhesive 600, ensuring the fixing effect of the laminate 500.

[0055] Among them, the first side 214 and the top plate 200, the first side 214 and the bottom surface 215, the bottom surface 215 and the second side 216, and the second side 216 and the top plate 200 are all connected by rounded arcs.

[0056] Thus, by making a rounded transition at the position of the powder adhesive on each of the diversion protrusions 210, a fully streamlined flow guiding structure without sharp edges and corners can be formed, which has excellent hydrodynamic characteristics, reduces flow resistance and pressure drop, and thus makes the diversion effect of the adhesive liquid 600 better.

[0057] Optional, see reference Figure 2 , Figure 4 , Figure 5 and Figure 6 The distance between the nearest diversion protrusion 210 to the outer side panel 100 and the outer side panel 100 is greater than the distance between two adjacent diversion protrusions 210. In other words, the width of the glue applicator 220 is greater than the width of any overflow groove 230. This allows the glue applicator 220 to hold more glue liquid 600 during the initial glue application process, ensuring the adhesive area of ​​the frame and the laminate 500 and improving the reliability of the photovoltaic module.

[0058] With three diversion protrusions 210, the width of the overflow groove 230 is sufficiently large to accommodate more adhesive 600, while maintaining a fixed width limit for the top plate 200. This avoids insufficient diversion and buffering effects due to a small number of diversion protrusions 210, which could result in incomplete filling of the adhesive 600. Conversely, it avoids insufficient adhesive 600 due to a large number of diversion protrusions 210 affecting the total width of all overflow grooves 230 and reducing the total volume of adhesive 600. This ensures both adequate adhesive 600 capacity and effective diversion and buffering.

[0059] The three diversion protrusions 210 are a first diversion protrusion 211, a second diversion protrusion 212, and a third diversion protrusion 213 arranged sequentially along the width extension direction of the top plate 200. The first diversion protrusion 211 is closer to the outer side plate 100 than the second diversion protrusion 212. Correspondingly, the first diversion protrusion 211 plays the role of initial diversion buffer, the second diversion protrusion 212 plays the role of secondary diversion buffer, and the third diversion protrusion 213 plays the role of tertiary diversion buffer.

[0060] The first diversion protrusion 211 has a protrusion height of 0.2~0.4mm and a width of 0.5~1mm; the second diversion protrusion 212 has a protrusion height of 0.3~0.5mm and a width of 0.5~1mm; the third diversion protrusion 213 has a protrusion height of 0.5~1.0mm and a width of 0.5~1mm. The width of each diversion protrusion 210 is consistent, which facilitates processing and avoids the situation where the overflow effect is affected by the excessive width, or the glue capacity is affected by the width of the overflow groove 230. It facilitates processing, ensures glue capacity, and also ensures the overflow effect of silicone flowing into the overflow groove 230 and the overflow tail groove 240.

[0061] Of course, in some embodiments, the width of each diversion protrusion 210 may be different, and can be selected according to actual needs. The width may be less than 0.5mm or greater than 1mm.

[0062] Continue to refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 The width of the overflow groove 230 and the width of the overflow tail groove 240 are both 3~5mm. That is, the distance between any two adjacent diversion protrusions 210 and the distance between the diversion protrusion 210 furthest from the outer side plate 100 (for example, the third diversion protrusion 213 when there are three diversion protrusions 210) and the blocking protrusion 250 can both be 3~5mm, so as to ensure sufficient glue capacity.

[0063] Of course, the width of the overflow groove 230 and the width of the overflow tail groove 240 can be less than 3mm or greater than 5mm.

[0064] It is understandable that the overflow groove 230 between the first diversion protrusion 211 and the second diversion protrusion 212 is the first overflow groove 231, and the overflow groove 230 between the second diversion protrusion 212 and the third diversion protrusion 213 is the second overflow groove 232. The first overflow groove 231 mainly accommodates the excess glue 600 diverted from the glue dispensing groove 220, and the second overflow groove 232 mainly accommodates the excess glue 600 diverted from the glue dispensing groove 220 and the first overflow groove 231.

[0065] The relative size relationship between the widths of each overflow groove 230 and between the widths of the overflow groove 230 and the overflow tail groove 240 is not specifically limited. That is, the spacing between each diversion protrusion 210 and the spacing between the diversion protrusion 210 furthest from the outer side plate 100 (e.g., the third diversion protrusion 213) and the blocking protrusion 250 are not specifically limited. They can be the same or different and can be selected according to actual needs.

[0066] For example, refer to Figure 2 The top plate 200 is provided with an extension groove 260, which is connected to the overflow tail groove 240. This allows the overflow tail groove 240 and the extension groove 260 to accommodate more adhesive 600 diverted from the glue application groove 220 and each overflow groove 230. Along the width extension direction of the top plate 200, the width of each overflow groove 230 can gradually increase, while the width of the overflow tail groove 240 is greater than the width of the overflow groove 230. This allows excess adhesive 600 to be filled into the extension groove 260 when it overflows into the overflow tail groove 240. Taking three diversion protrusions 210 as an example, the width of the first overflow groove 231 is less than the width of the second overflow groove 232, and the width of the second overflow groove 232 is less than the width of the overflow tail groove 240.

[0067] For example, refer to Figure 5 Since the top plate 200 does not have an extension groove 260, overflow grooves 230 and overflow tail grooves 240 with the same groove width can be used, which is beneficial for the glue 600 to be evenly filled in each overflow groove 230 and overflow tail groove 240. Taking the number of diversion protrusions 210 as an example, the groove widths of the first overflow groove 231, the second overflow groove 232, and the overflow tail groove 240 are all equal.

[0068] For example, refer to Figure 6 The extension groove 260 on the top plate 200 is connected to the overflow groove 230, specifically to the overflow groove 230 of the outermost outer plate 100. In this case, the width of each overflow groove 230 and the overflow tail groove 240 can gradually decrease from the outermost outer plate 100 inwards, so that the volume of the adhesive 600 gradually decreases to prevent the adhesive 600 from overflowing. Taking three diversion protrusions 210 as an example, the width of the first overflow groove 231 is greater than the width of the second overflow groove 232, and the width of the second overflow groove 232 is greater than the width of the overflow tail groove 240. Of course, the extension groove 260 can also be connected to the second overflow groove 232.

[0069] In summary, compared with the prior art, this application has at least the following advantages:

[0070] 1. Compared with the conventional single overflow groove 230 frame, this application adopts a multi-overflow groove 230 design, and the distance between the bottom surface 215 of the diversion protrusion 210 (from the outer side plate 100 inward) of each overflow groove 230 and the top plate 200 (i.e. the protrusion height of the diversion protrusion 210) gradually increases. This ensures that there is no glue shortage in each overflow groove 230 when there is no glue overflow on the front side, thus ensuring the long-term reliability and stability of the photovoltaic module.

[0071] 2. The diversion protrusions 210 on both sides of the multi-overflow groove 230 are designed with diversion angles, which can buffer and divert the glue during the glue extrusion process. They can effectively fill the inner overflow groove 230, while the outermost overflow tail groove 240 avoids front overflow due to the diversion and buffering of the diversion protrusions 210. The structure of the three-diversion protrusions 210 is expected to improve the overflow yield by about 20-30% compared with the existing single overflow groove 230 structure.

[0072] 3. While ensuring reliability, there is no excess adhesive on the front side, resulting in a more aesthetically pleasing appearance. It also reduces personnel cleaning costs and lowers the overall manufacturing cost of the components.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A frame, characterized in that, It includes an outer side plate (100), a top plate (200) connected to the top edge of the outer side plate (100), and a support plate (300) connected to the inner side of the outer side plate (100). The top plate (200) and the support plate (300) are opposite each other, and the top plate (200), the outer plate (100) and the support plate (300) together form a mounting groove (400) for inserting the edge of the laminate (500). The top plate (200) has a blocking protrusion (250) on the side away from the outer plate (100) that protrudes toward the support plate (300). The top plate (200) has at least two diversion protrusions (210) on the side facing the support plate (300), and the protrusion direction of the diversion protrusions (210) is inclined towards the outer plate (100); Along the width extension direction of the top plate (200), each of the diversion protrusions (210) is arranged at intervals in sequence, and the protrusion height of each of the diversion protrusions (210) gradually increases; Each pair of adjacent diversion protrusions (210) together with the top plate (200) forms an overflow groove (230). The diversion protrusion (210) closest to the outer side plate (100) forms a glue application groove (220) with the outer side plate (100). The diversion protrusion (210) farthest from the outer side plate (100) forms an overflow tail groove (240) with the blocking protrusion (250).

2. The frame according to claim 1, characterized in that, The angle of inclination of the protrusion direction of the diversion protrusion (210) relative to the top plate (200) is 30~45°.

3. The frame according to claim 1 or 2, characterized in that, The diversion protrusion (210) includes a first side surface (214), a bottom surface (215), and a second side surface (216) connected at an acute angle in sequence. The first side surface (214) and the second side surface (216) are parallel and opposite to each other in the width extension direction of the top plate (200). The first side surface (214) and the second side surface (216) are both connected to the top plate (200) at an acute angle. The bottom surface (215) is parallel to the top plate (200).

4. The frame according to claim 3, characterized in that, The first side (214) and the top plate (200), the first side (214) and the bottom surface (215), the bottom surface (215) and the second side (216), and the second side (216) and the top plate (200) are all connected by rounded arcs.

5. The frame according to claim 1, characterized in that, The distance between the diversion protrusion (210) closest to the outer side plate (100) and the outer side plate (100) is greater than the distance between two adjacent diversion protrusions (210).

6. The frame according to claim 1, characterized in that, The number of the diversion protrusions (210) is three.

7. The frame according to claim 6, characterized in that, The three diversion protrusions (210) are a first diversion protrusion (211), a second diversion protrusion (212) and a third diversion protrusion (213) arranged sequentially along the width extension direction of the top plate (200), wherein the first diversion protrusion (211) is closer to the outer side plate (100) than the second diversion protrusion (212). The first diversion protrusion (211) has a protrusion height of 0.2~0.4mm and a width of 0.5~1mm; The second diversion protrusion (212) has a protrusion height of 0.3~0.5mm and a width of 0.5~1mm; The third diversion protrusion (213) has a protrusion height of 0.5~1.0mm and a width of 0.5~1mm.

8. The frame according to claim 1, characterized in that, The top plate (200) is provided with an extension groove (260), which is connected to the overflow groove (230), or the extension groove (260) is connected to the overflow tail groove (240).

9. The frame according to claim 1, characterized in that, The width of the overflow groove (230) and the width of the overflow tail groove (240) are both 3~5mm.

10. A photovoltaic module, characterized in that, Includes the border as described in any one of claims 1-9.

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