Anti-pollution photovoltaic frame, combined frame and photovoltaic module

Abstract

The utility model discloses an anti-fouling photovoltaic frame, a combined frame and a photovoltaic module. The anti-fouling photovoltaic frame comprises a side plate, a bottom plate, an inclined plate and a baffle plate, the top of the side plate is connected with one end of the inclined plate, the bottom of the side plate is connected with one end of the bottom plate, the side plate is further connected with one end of the baffle, the inclined plate, the bottom plate and the baffle are all located on the same side of the side plate, the baffle is located between the inclined plate and the bottom plate, and the baffle is located between the inclined plate and the bottom plate. A containing groove used for containing the end of a laminated part is formed among the inclined plate, the side plate and the baffle, a glue overflowing groove is formed in the lower surface of the inclined plate, a glue filling groove is formed in the upper surface of the baffle, the glue filling groove is connected to the end of the baffle through an inclined face, and the inclined face inclines upwards in the direction away from the side plate. The problem of frame water accumulation can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic modules, and in particular to a contamination-proof photovoltaic frame, a combined frame and a photovoltaic module. Background Art

[0002] At present, photovoltaic modules are widely used. The frame is one of the main materials of photovoltaic modules, providing sealing and protection for photovoltaic modules.

[0003] The A side of the frame of the photovoltaic module is the top side of the frame. In the prior art, the A side is usually designed to be longer and higher than the height of the front glass edge of the photovoltaic module. For example, the utility model patent with publication number CN202210529U discloses a solar photovoltaic module frame with an overflowing glue groove. The interior of the A side of the frame is used to set the overflowing glue groove. Therefore, the A side is longer and has a larger cavity for overflowing glue. During normal use, since the A side intercepts the water flow, a contamination belt is easily formed at the edge of the photovoltaic module. The contamination belt formed after the water evaporates will block the light, resulting in a decrease in the power generation efficiency of the photovoltaic module and a decrease in the service life of the photovoltaic module.

[0004] Therefore, in the prior art, a relatively large cavity is provided inside the A surface for overflowing glue, which results in the A surface intercepting water flow and causing the light-receiving area of ​​the photovoltaic module to be contaminated, which is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The present application provides a contamination-proof photovoltaic frame to solve the above-mentioned technical problems.

[0006] In a first aspect, according to some embodiments, the present application provides an anti-fouling photovoltaic frame, including: a side plate, a bottom plate, an inclined plate, and a baffle;

[0007] The top of the side panel is connected to one end of the inclined panel, the bottom of the side panel is connected to one end of the bottom panel, and the side panel is also connected to one end of the baffle. The inclined panel, the bottom panel and the baffle are all located on the same side of the side panel, and the baffle is located between the inclined panel and the bottom panel. A receiving groove for accommodating the end of the laminate is formed between the inclined panel, the side panel and the baffle. A glue overflow groove is formed on the lower surface of the inclined panel, and a glue filling groove is formed on the upper surface of the baffle. The glue filling groove is connected to the end of the baffle through an inclined surface, and the inclined surface is inclined upward in a direction away from the side panel; and the length of the inclined panel is less than the length of the baffle, and the inclined panel gradually inclines toward the baffle.

[0008] Preferably, the height of the inclined plate is less than or equal to 4 mm, and the length of the inclined plate is less than or equal to 11 mm.

[0009] Preferably, the height of the inclined plate is less than or equal to 1.51 mm.

[0010] Preferably, the frame further comprises: a support plate arranged opposite to the side plate, the top of the support plate is connected to the baffle plate, and the bottom of the support plate is connected to the bottom plate.

[0011] Preferably, a hollow cavity is formed between the side plate, the support plate, the baffle plate and the bottom plate, and convex ribs are provided inside and outside the cavity.

[0012] Preferably, the convex ribs are respectively provided on the lower surface of the baffle plate and the outer surface of the support plate.

[0013] Preferably, the glue filling groove and the glue overflow groove are arranged opposite to each other; and / or,

[0014] The upper surface of the baffle further comprises a plane section for supporting the laminate, and the plane section is connected to the glue filling groove through the inclined surface.

[0015] In a second aspect, according to some embodiments, the present application provides an anti-fouling photovoltaic combined frame, wherein the combined frame includes at least one photovoltaic frame described in the first aspect above;

[0016] The photovoltaic frame is a short frame of the combined frame, and / or the photovoltaic frame is a long frame of the combined frame.

[0017] Preferably, a splicing angle between a long frame of the photovoltaic combination frame and a short frame of the photovoltaic combination frame is less than 90°, wherein the splicing angle is an angle between a splicing seam and a short frame when the long frame and the short frame are combined; and / or,

[0018] The photovoltaic combined frame further includes: an angle key, and the angle key is used to fix the short frame and the long frame.

[0019] In a third aspect, according to some embodiments, the present application provides a photovoltaic assembly, wherein the photovoltaic assembly comprises a laminate and at least one photovoltaic frame as described in the first aspect.

[0020] The embodiment of the present application adopts the design of an inclined plate to replace the A surface with a larger cavity in the prior art, and replaces the A surface with a larger length with an inclined plate of a smaller length, which solves the problem that a larger cavity needs to be set inside the A surface in the prior art for overflow glue, and the A surface intercepts the water flow, causing the light-receiving area of ​​the photovoltaic module to be contaminated. The problem of water accumulation in the frame can be effectively improved. At the same time, the inside of the inclined plate is a glue overflow groove for limiting the laminate, and a baffle is arranged opposite to the inclined plate. The upper surface of the baffle is provided with a glue filling groove, and the glue filling groove is connected to the end of the baffle through a slope, which can slow down the flow of colloid, reduce the overflow speed of glue, and prevent glue overflow. At the same time, the amount of stored glue can be increased, and the sealing and bonding properties of the photovoltaic module are enhanced, thereby enhancing the reliability of the photovoltaic module. The present application can improve the problem of contamination of the light-receiving area of ​​the photovoltaic module by designing an inclined plate, and at the same time, the design of the inclined surface and the glue filling groove can slow down the flow of colloid, reduce the overflow speed of glue, and prevent glue overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of a three-dimensional structure of a photovoltaic frame for preventing dirt accumulation provided in an embodiment of the present application;

[0023] Figure 2 A schematic cross-sectional view of a photovoltaic frame for preventing dirt accumulation provided in an embodiment of the present application;

[0024] Figure 3 A cross-sectional schematic diagram of a standard frame provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the relevant dimensions of an anti-fouling photovoltaic frame provided in an embodiment of the present application;

[0026] Figure 5 The relevant dimensional intention of the height of the A side of the standard frame provided in the embodiment of the present application;

[0027] Figure 6 One of the splicing schematic diagrams of the frame provided in the embodiment of the present application;

[0028] Figure 7 The second schematic diagram of splicing the frame provided in the embodiment of the present application;

[0029] Figure 8 This is the third schematic diagram of the splicing of the frame provided in the embodiment of this application.

[0030] Figure markings: 110 side panel; 120 bottom panel; 130 inclined panel; 140 baffle; 150 glue overflow groove; 160 glue filling groove; 170 inclined surface; 180 support panel; 190 convex rib; 200 standard A surface; 210 standard glue overflow groove; 220 standard baffle; 230 standard convex rib; 240 standard horizontal panel; 250 standard frame; d1 distance from battery cell to glass edge; d2 height of inclined panel; d3 length of inclined panel; α installation angle; β splicing angle; 300 laminate; 400 water accumulation area; L1 length of inclined panel; L2 length of A surface of standard frame. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the description of this application, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The following is a further detailed description of an anti-fouling photovoltaic frame provided by this embodiment in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will refer to the accompanying drawings and combine with the embodiments to describe the present application in detail.

[0033] Please refer to Figure 1 , and combined with Figure 2 A photovoltaic frame for preventing dirt accumulation includes: a side plate 110, a bottom plate 120, an inclined plate 130 and a baffle 140; the top of the side plate 110 is connected to one end of the inclined plate 130, the bottom of the side plate 110 is connected to one end of the bottom plate 120, the side plate 110 is also connected to one end of the baffle 140, the inclined plate 130, the bottom plate 120, and the baffle 140 are all located on the same side of the side plate 110, and the baffle 140 is located between the inclined plate 130 and the bottom plate 120, and the inclined plate 110 is connected to one end of the baffle 140. 30. A receiving groove for accommodating the end of the laminate is formed between the side plate 110 and the baffle plate 140, a glue overflow groove 150 is formed on the lower surface of the inclined plate 130, and a glue filling groove 160 is formed on the upper surface of the baffle plate 140. The glue filling groove 160 is connected to the end of the baffle plate 140 through an inclined surface 170, and the inclined surface 170 is inclined upward in a direction away from the side plate 110; and the length of the inclined plate 130 is less than the length of the baffle plate 140, and the inclined plate 130 is gradually inclined toward the baffle plate 140.

[0034] Specifically, Figure 1 A three-dimensional schematic diagram of a frame provided in an embodiment of the present application, Figure 2 yes Figure 1 The photovoltaic frame glue overflow groove 150, glue filling groove 160 and baffle 140 are filled with sealant to fix the photovoltaic module. Figure 2 A schematic cross-sectional view of a frame provided for an embodiment of the present application. The frame includes a side plate 110, a bottom plate 120, and an inclined plate 130. The upper surface of the inclined plate 130 is connected to the top of the side plate 110, and the lower surface of the inclined plate 130 is in contact with the upper surface of the laminate; a baffle 140 is arranged opposite to the inclined plate 130, and the baffle 140 is used to be bonded and connected to the bottom surface of the laminate; the inside of the inclined plate 130 is a glue overflow groove 150 for limiting the laminate, and a glue filling groove 160 is arranged opposite to the glue overflow groove 150, and the glue filling groove 160 is connected to the baffle 140 through an inclined surface 170, wherein the glue overflow groove 150 is used to fix the upper surface of the laminate, and the glue filling groove 160 is used to fix the lower surface of the laminate. The glue overflow groove 150 is arranged opposite to the glue filling groove 160 in the vertical direction, which can effectively reduce the flow speed of the sealant in the groove and reduce the risk of glue overflow of the photovoltaic module. The baffle 140 is arranged opposite to the bottom plate 120 in the vertical direction, and has the function of supporting the photovoltaic module. The glue filling groove 160 is connected to the end of the baffle 140 through the inclined surface 170, and the inclined surface 170 is inclined upward in the direction away from the side plate 110. The glue filling groove 160 is provided and connected to the end of the baffle 140 through the inclined surface 170, which can slow down the flow of colloid, reduce the speed of glue overflow, and prevent glue overflow. At the same time, the amount of stored glue can be increased, the sealing performance and bonding performance of the photovoltaic module are enhanced, and thus the reliability of the module is enhanced.

[0035] The embodiment of the present application adopts the design of the inclined plate 130 to replace the A surface with a larger cavity in the prior art, and replaces the A surface with a larger length with an inclined plate 130, which solves the problem that a larger cavity needs to be set inside the A surface for overflow glue in the prior art, and the A surface intercepts the water flow, causing the light-receiving area of ​​the photovoltaic module to be contaminated, which can effectively improve the problem of water accumulation in the frame. At the same time, the inside of the inclined plate 130 is a glue overflow groove 150 for limiting the laminate, and a baffle 140 is arranged opposite to the inclined plate 130. The upper surface of the baffle 140 is provided with a glue filling groove 160, and the glue filling groove 160 is connected to the end of the baffle 140 through an inclined surface 170, which can slow down the flow of colloid, reduce the overflow speed, and prevent glue overflow. At the same time, the amount of stored glue can be increased, and the sealing performance and bonding performance of the photovoltaic module are enhanced, thereby enhancing the reliability of the photovoltaic module. The present application can improve the problem of light-receiving area contamination of the photovoltaic module by designing the inclined plate 130, and at the same time, the design of the inclined surface 170 and the glue filling groove 160 can slow down the flow of colloid, reduce the overflow speed, and prevent glue overflow.

[0036] In an optional embodiment, the frame further includes: a support plate 180 disposed opposite to the side plate, the top of the support plate 180 is connected to the baffle plate 140 , and the bottom of the support plate 180 is connected to the bottom plate 120 .

[0037] For details, please refer to Figure 1 , and combined with Figure 2 A support plate 180 is arranged opposite to the side plate, the top of the support plate 180 is connected to the baffle 140, and the bottom of the support plate 180 is connected to the bottom plate 120. The frame design of the present application can effectively improve the problem of water accumulation in the frame, while maintaining the fixing effect of the frame on the laminate, ensuring the strength of the frame, and effectively reducing the deformation of the glass of the photovoltaic module.

[0038] In an optional embodiment, a hollow cavity is provided between the side plate 110 , the support plate 180 , the baffle plate 140 and the bottom plate 120 , and ribs 190 are provided inside and outside the cavity.

[0039] For details, please refer to Figure 1 , and combined with Figure 2 There is a hollow cavity between the side plate 110, the support plate 180, the baffle 140 and the bottom plate 120, and convex ribs 190 are arranged inside and outside the cavity. The convex ribs 190 can disperse stress and enhance the bearing performance of the photovoltaic module.

[0040] In an optional embodiment, the lower surface of the baffle 140 and the outer surface of the support plate 180 are respectively provided with ribs 190 .

[0041] For details, please refer to Figure 1 , and combined with Figure 2 The rib 190 designed on the lower surface of the baffle 140 will not damage the laminate, and the rib 190 designed on the outer surface of the support plate 180 will not affect the assembly of other components in the cavity, such as the installation of angle keys.

[0042] In an optional embodiment, the glue filling groove 160 is arranged opposite to the glue overflow groove 150; and / or, the upper surface of the baffle 140 also includes a planar section for supporting the laminate, and the planar section is connected to the glue filling groove 160 through an inclined surface 170.

[0043] For details, please refer to Figure 1 , and combined with Figure 2 The glue filling groove 160 and the glue overflow groove 150 are arranged opposite to each other. Between the glue filling groove 160 and the glue overflow groove 150 is a receiving groove for receiving the end of the laminate. The glue filling groove 160 and the glue overflow groove 150 can respectively seal the laminate through the glue from both sides of the laminate, and can slow down the flow of the glue in both directions, reduce the speed of the glue overflow and enhance the sealing performance. The upper surface of the baffle 140 also includes a plane section for supporting the laminate. The plane section is connected to the glue filling groove 160 through the inclined surface 170 to support the laminate.

[0044] In an optional implementation, the height of the inclined plate 130 is d2, and the length of the inclined plate 130 is d3, wherein d2≤4 mm, and d3≤11 mm.

[0045] Figure 3 It is a cross-sectional schematic diagram of a standard frame in the prior art, which has a larger cavity and a longer A-side structure. The standard frame body 250 includes a standard A-side 200, a standard overflow groove 210, a standard baffle 220, a standard rib 230, and a standard cross plate 240. Compared with the anti-fouling frame provided in the embodiment of the present application, the standard frame has a longer A-side and a larger cavity. In normal use, since the A-side intercepts the water flow, a contamination zone is easily formed at the edge of the photovoltaic module.

[0046] The embodiment of the present application designs the length and height of the frame inclined plate 130, the height of the inclined plate 130 is d2, and the length of the inclined plate 130 is d3, wherein d2≤4mm, d3≤11mm. The anti-fouling frame provided by the embodiment of the present application has a smaller cross-section, which is also conducive to reducing the cost of aluminum profile processing. It can effectively improve the problem of water accumulation in the frame, while maintaining the fixing effect of the frame on the laminate, ensuring the strength of the frame, and effectively reducing the deformation of the photovoltaic module glass.

[0047] In an optional embodiment, the height of the inclined plate 130 is less than or equal to 1.51 mm.

[0048] Figure 4 A schematic diagram for calculating the height of the inclined plate of the anti-fouling frame provided in the embodiment of the present application. Figure 4 As shown, when the photovoltaic module is installed at an angle of α, the area formed by the intersection of the horizontal line in the horizontal direction and the laminate 300 after the height d2 of the inclined plate rotates at an angle α is the water accumulation area 400. When the length of the water accumulation area 400 on the laminate 300 is less than the distance d1 from the cell to the edge of the glass, the formed dirt accumulation belt will not block the cell from absorbing light, and thus will not affect the power generation of the photovoltaic module. Usually, the installation angle α of the photovoltaic module is 5°. At this time, if the water accumulation area does not block the cell, the theoretical height of the inclined plate should be less than or equal to 1.51 mm, and the corresponding height of the inclined plate should be less than or equal to 5 mm. Of course, α can also be designed to be other angles, which are not specifically limited here.

[0049] In an optional implementation, the height and length of the inclined plate 130 in the present application are calculated according to the installation angle α of the photovoltaic module.

[0050] In a preferred embodiment, considering the material properties of the surface in contact with water, the height of the inclined plate 130 is 1.3 mm, and the length of the inclined plate 130 is 4.85 mm.

[0051] Figure 5The figure is a schematic diagram for calculating the height of the A surface of the standard frame. Compared with the anti-fouling frame provided in the preferred embodiment, the water accumulation area formed when the standard frame is installed at the lower end of the inclination angle is much larger than the anti-fouling frame provided in the embodiment of the present application, and it will block the battery cells and affect the power generation performance of the photovoltaic module. The anti-fouling frame provided in the embodiment of the present application can effectively reduce the impact of the contamination belt on the power generation of the photovoltaic module, while improving the load performance of the frame. The inclined plate structure is conducive to ensuring the back load performance of the photovoltaic module.

[0052] The following is a further detailed description of an anti-fouling photovoltaic composite frame provided by another embodiment of the present application in conjunction with the accompanying drawings. Figure 6-8 , a pollution-proof photovoltaic combination frame, the combination frame comprising the pollution-proof photovoltaic frame of any one of the above embodiments.

[0053] In an optional implementation, the anti-fouling photovoltaic frame is a short frame of a combined frame, and / or a long frame of a combined frame.

[0054] Specifically, Figure 6-8 A schematic diagram of the splicing of the frame provided in the embodiment of the present application. It is composed of four anti-fouling splicings. In order to achieve the purpose of preventing the photovoltaic module from fouling and improving the power generation performance of the photovoltaic module, the photovoltaic module can be adapted to any installation method.

[0055] The length of the anti-fouling frame inclined plate is L1, and the length of the standard frame A surface is L2. Figure 6 The medium anti-fouling photovoltaic frame is the short frame of the combined frame. Figure 8 The medium anti-fouling photovoltaic frame is the long frame of the combined frame. Figure 7 The medium anti-fouling photovoltaic frame is a long frame and a short frame of the combined frame.

[0056] In order to prevent the accumulation of dirt on photovoltaic modules and improve the power generation performance of photovoltaic modules, the anti-fouling frame of photovoltaic modules needs to be installed at the lower end of the inclination. The standard frame can be installed in a variety of ways, such as pressing blocks, screws, and single-axis tracking. The frame can adapt to a variety of installation methods on site and has a wider range of application scenarios. To a certain extent, it can reduce the use of raw materials at the aluminum profile processing end, reduce process changes at the framing process end, and reduce costs.

[0057] In an optional implementation, a splicing angle between a long frame of a photovoltaic combination frame and a short frame of a photovoltaic combination frame is less than 90°, wherein the splicing angle is an angle between a splicing seam and a short frame when the long frame and the short frame are combined.

[0058] Specifically, Figure 6-8As shown in the figure, when the long frame and the short frame are combined, a joint seam is formed at the joint, and the angle between the joint seam and the short frame is the joint angle β. In order to make the frame have better matching, the joint angle β of the standard frame and the anti-fouling frame can be adjusted to make the photovoltaic module frame more beautiful. The joint angle β of the long frame and the short frame is in the range of 0°≤β<90°. Figure 6-8 As shown, when β is 0°, there is no short frame, and the short frame can be replaced by an edge wrap to enhance the sealing of the photovoltaic module.

[0059] In an optional implementation, the anti-fouling photovoltaic composite frame further includes: an angle key, which is used to fix and connect two adjacent photovoltaic frames.

[0060] The present application can effectively improve the problem of water accumulation in the frame, while maintaining the fixing effect of the frame on the laminate, ensuring the strength of the frame, and effectively reducing the deformation of the glass of the photovoltaic module. The frame adjusts the splicing angle of the short frame and the long frame under the premise of ensuring the load performance of the photovoltaic module, so that the frames have good matching, beautiful structure, and can adapt to a variety of installation methods, with good cost reduction benefits.

[0061] Another embodiment of the present application provides a photovoltaic assembly, which includes a laminate and at least one anti-fouling photovoltaic frame in the above embodiment.

[0062] Specifically, the present application provides a photovoltaic module frame for use in the field of photovoltaic modules, and the photovoltaic module includes a frame and a laminate, which are bonded by a sealant. The length and height of the inclined plate of the frame design of the present application can effectively improve the problem of water accumulation in the frame, while maintaining the fixing effect of the frame on the laminate, ensuring the strength of the frame, and effectively reducing the glass deformation of the photovoltaic module. The frame adjusts the splicing angle of the short frame and the long frame under the premise of ensuring the load performance of the photovoltaic module, so that the frames have good matching, beautiful structure, and can be adapted to a variety of installation methods, with good cost reduction benefits. Compared with the prior art, the design of the anti-fouling frame can effectively reduce the impact of the dirt accumulation belt on the power generation of the photovoltaic module, while improving the load performance of the frame, and retaining the A-side structure is conducive to ensuring the back load performance of the photovoltaic module. It can adapt to a variety of installation methods on site, has a wider range of application scenarios, can reduce the use of raw materials at the aluminum profile processing end to a certain extent, reduce process changes at the framing process end, and reduce costs.

[0063] It should be understood that the above specific embodiments of the present application are only used to illustrate or explain the principles of the present application, and do not constitute a limitation to the present application. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present application should be included in the protection scope of the present application. In addition, the claims attached to the present application are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A photovoltaic frame that prevents dirt accumulation, characterized in that: The photovoltaic frame includes: side plates, bottom plates, inclined plates and baffles; The top of the side panel is connected to one end of the inclined panel, the bottom of the side panel is connected to one end of the bottom panel, and the side panel is also connected to one end of the baffle. The inclined panel, the bottom panel and the baffle are all located on the same side of the side panel, and the baffle is located between the inclined panel and the bottom panel. A receiving groove for accommodating the end of the laminate is formed between the inclined panel, the side panel and the baffle. A glue overflow groove is formed on the lower surface of the inclined panel, and a glue filling groove is formed on the upper surface of the baffle. The glue filling groove is connected to the end of the baffle through an inclined surface, and the inclined surface is inclined upward in a direction away from the side panel; and the length of the inclined panel is less than the length of the baffle, and the inclined panel gradually inclines toward the baffle.

2. The anti-fouling photovoltaic frame according to claim 1, characterized in that: The height of the inclined plate is less than or equal to 4 mm, and the length of the inclined plate is less than or equal to 11 mm.

3. The anti-fouling photovoltaic frame according to claim 1, characterized in that: The height of the inclined plate is less than or equal to 1.51 mm.

4. The anti-fouling photovoltaic frame according to claim 1, characterized in that: The frame further includes: a support plate arranged opposite to the side plate, the top of the support plate is connected to the baffle plate, and the bottom of the support plate is connected to the bottom plate.

5. The anti-fouling photovoltaic frame according to claim 4, characterized in that: A hollow cavity is formed between the side plate, the support plate, the baffle plate and the bottom plate, and convex ribs are arranged inside and outside the cavity.

6. The anti-fouling photovoltaic frame according to claim 5, characterized in that The lower surface of the baffle plate and the outer surface of the support plate are respectively provided with the convex ribs.

7. The anti-fouling photovoltaic frame according to claim 1, characterized in that , the glue filling groove and the glue overflow groove are arranged opposite to each other; and / or, The upper surface of the baffle further comprises a plane section for supporting the laminate, and the plane section is connected to the glue filling groove through the inclined surface.

8. A photovoltaic composite frame that prevents dirt accumulation, characterized in that: The photovoltaic combination frame comprises at least one anti-fouling photovoltaic frame as described in any one of claims 1 to 7; The photovoltaic frame is a short frame of the combined frame, and / or the photovoltaic frame is a long frame of the photovoltaic combined frame.

9. The anti-fouling photovoltaic composite frame according to claim 8, characterized in that: The splicing angle between the long frame of the photovoltaic combination frame and the short frame of the photovoltaic combination frame is less than 90°, and the splicing angle is the angle between the splicing seam and the short frame when the long frame and the short frame are combined; and / or, The photovoltaic combined frame further includes: an angle key, and the angle key is used to fix the short frame and the long frame.

10. A photovoltaic module, characterized in that: The photovoltaic assembly comprises a laminate and the anti-fouling photovoltaic composite frame according to any one of claims 8 or 9 assembled on the edge of the laminate.

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