Laminated piece and photovoltaic module

Abstract

The utility model discloses a laminated member and a photovoltaic assembly. The laminated piece comprises back glass, a first adhesive film layer, a battery string layer, a second adhesive film layer and front glass which are sequentially stacked, the back glass is connected to the back of the battery string layer through the first adhesive film layer, and the front glass is connected to the front of the battery string layer through the second adhesive film layer; a first distance is formed between the edge of the battery string layer and the edge of the laminated part along the extension direction of the laminated part; the laminated piece further comprises a shielding piece which is connected to the area, close to the edge, of the laminated piece, the shielding piece is provided with a first side edge and a second side edge which are oppositely arranged in the extending direction of the laminated piece, a second distance is formed between the first side edge and the edge of the laminated piece, and the second distance is larger than or equal to the first distance. A third distance is formed between the second side edge and the edge of the laminated piece, and the third distance is larger than or equal to 0 mm and smaller than or equal to 2 mm.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to a laminate and a photovoltaic component. Background Art

[0002] The laminate is the core component of the photovoltaic module. The laminate contains a series of cells that convert solar energy into electrical energy.

[0003] In the prior art, in order to improve the reliability of photovoltaic modules, the size of the battery string layer is usually set to be smaller than the size of the laminate. In other words, there is a certain distance between the edge of the battery string layer and the edge of the laminate.

[0004] However, in double-glass PV modules, there is a distance between the edge of the cell string layer and the edge of the laminate, resulting in poor appearance consistency of the double-glass PV modules. Utility Model Content

[0005] The utility model discloses a laminate and a photovoltaic module, so as to solve or at least partially solve the problem in the prior art that in a double-glass photovoltaic module, there is a distance between the edge of a battery string layer and the edge of the laminate, resulting in poor appearance consistency of the double-glass photovoltaic module.

[0006] In order to solve the above technical problems, the utility model is achieved as follows:

[0007] In the first aspect, the utility model discloses a laminate, comprising a back glass, a first adhesive film layer, a battery string layer, a second adhesive film layer and a front glass stacked in sequence, wherein the back glass is connected to the back of the battery string layer through the first adhesive film layer, and the front glass is connected to the front of the battery string layer through the second adhesive film layer; along the extension direction of the laminate, there is a first distance between the edge of the battery string layer and the edge of the laminate; the laminate also includes a shielding member, the shielding member is connected to the area of ​​the laminate close to the edge, along the extension direction of the laminate, the shielding member has a first side edge and a second side edge that are relatively arranged, the first side edge and the edge of the laminate have a second distance, the second distance is greater than or equal to the first distance, the width of the shielding member is greater than the first distance, and the edge of the shielding member has a second distance from at least one edge of the laminate, the second distance is greater than or equal to 0 mm and less than or equal to 2 mm.

[0008] Optionally, a difference between the second distance and the first distance is greater than or equal to 1 mm.

[0009] Optionally, the first distance is greater than or equal to 18 mm and less than or equal to 22 mm; and the width of the shielding member is greater than or equal to 16 mm and less than or equal to 23 mm.

[0010] Optionally, the shielding member includes a first shielding member, wherein the first shielding member is disposed between the first adhesive film layer and the second adhesive film layer, or the first shielding member is disposed between the first adhesive film layer and the back glass.

[0011] Optionally, the first shielding member includes one of an adhesive tape, polyethylene foam and an insulating pad.

[0012] Optionally, the shielding member includes a second shielding member and a third shielding member, wherein the second shielding member is connected to an area of ​​the back glass close to an edge of the laminate, and the third shielding member is arranged in the laminate; on the plane where the battery string layer is located, the third shielding member has a first projection, and the second shielding member has a second projection, the first projection is located between the battery string layer and the second projection, and the first projection at least partially falls within the battery string layer and the second projection.

[0013] Optionally, along the extension direction of the laminate, the sum of the width of the second shielding member and the width of the third shielding member is greater than the first distance.

[0014] Optionally, the second shielding member and the third shielding member are both connected to the back glass; and the second shielding member and the third shielding member are located on the same side of the back glass, or the second shielding member and the third shielding member are located on different sides of the back glass.

[0015] Optionally, the second shielding member includes a glaze layer, and the third shielding member includes a tape, wherein the glaze layer is attached to a side of the back glass close to the battery string layer, or the glaze layer is attached to a side of the back glass away from the battery string layer; and the tape is connected to a side of the back glass close to the battery string layer.

[0016] In a second aspect, the utility model further discloses a photovoltaic module, which comprises the laminate and a frame as described in the first aspect, wherein the laminate is connected to the frame.

[0017] Optionally, along the extension direction of the frame, the length of the shielding member is greater than the length of the battery string layer and less than the length of the laminate.

[0018] Optionally, the frame includes a bearing portion and a blocking portion connected to the bearing portion, wherein the back side of the laminate is connected to the bearing portion, and the side surface of the laminate is connected to the blocking portion; along the thickness direction of the laminate, the height of the top of the blocking portion is not higher than the height of the light-receiving surface of the laminate.

[0019] Optionally, the frame includes a first frame and a second frame connected to the first frame, wherein, along the thickness direction of the laminate, the height of the first frame is not higher than the height of the light-receiving surface of the laminate; and / or the height of the second frame is not higher than the height of the light-receiving surface of the laminate.

[0020] Optionally, the laminate also includes a busbar, wherein, along the extension direction of the second frame, the busbar is spaced apart from the battery string layer, and the busbar is located between the first adhesive film layer and the second adhesive film layer; along the direction perpendicular to the plane where the battery string layer is located, the shielding member is located below the busbar.

[0021] The utility model discloses a laminate and a photovoltaic module, wherein the laminate comprises a back glass, a first adhesive film layer, a battery string layer, a second adhesive film layer and a front glass which are stacked in sequence, wherein the back glass is connected to the back of the battery string layer through the first adhesive film layer, and the front glass is connected to the front of the battery string layer through the second adhesive film layer; along the extension direction of the laminate, there is a first distance between the edge of the battery string layer and the edge of the laminate; a shielding member is connected to the region of the laminate close to the edge, and along the extension direction of the laminate, the shielding member has a first side edge and a second side edge which are arranged oppositely, there is a second distance between the first side edge and the edge of the laminate, the second distance is greater than or equal to the first distance, there is a third distance between the second side edge and the edge of the laminate, and the third distance is greater than or equal to 0 mm and less than or equal to 2 mm.

[0022] In the utility model, along the extension direction of the laminate, there is a first distance between the edge of the battery string layer and the edge of the laminate. The setting of the first distance can make the battery string layer located inside the laminate, avoiding the battery string layer being too close to the edge of the laminate, causing water to enter the battery string layer, and causing a short circuit in the photovoltaic module. Among them, the shielding member is connected to the area near the edge of the laminate, and along the extension direction of the laminate, the shielding member has a first side edge and a second side edge that are relatively set, and the first side edge and the edge of the laminate have a second distance. The second distance is set to be greater than or equal to the first distance, so that the battery string group can be shielded by the shielding member. The area near the edge of the laminate is avoided from seeing the silicone that bonds the laminate to the frame from the outside of the photovoltaic module, thereby improving the consistency of the appearance of the photovoltaic module and making the photovoltaic module more beautiful.

[0023] Furthermore, in the utility model, there is a third distance between the second side of the shielding member and the edge of the laminate, and the third distance is set to be greater than or equal to 0 mm and less than or equal to 2 mm. The setting of the third distance can improve the reliability of the photovoltaic module and avoid the influence of the setting of the shielding member on the reliability of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram showing the structure of the photovoltaic assembly described in the embodiment of the utility model;

[0025] Figure 2 A partial cross-sectional view of a photovoltaic module when the long frame is a dust-proof frame;

[0026] Figure 3 A partial cross-sectional view of a photovoltaic module when the short frame is a dust-proof frame;

[0027] Figure 4 A partial cross-sectional view showing a photovoltaic module according to another embodiment of the present utility model;

[0028] Figure 5 A partial cross-sectional view showing a photovoltaic module in another embodiment of the present utility model;

[0029] Figure 6 A partial cross-sectional view showing a photovoltaic module according to another embodiment of the present utility model;

[0030] Figure 7 A schematic diagram showing the position of the shielding member in the embodiment of the utility model.

[0031] Reference numerals:

[0032] 10: laminate; 11: battery string layer; 12: back glass; 13: first adhesive film layer; 14: front glass; 15: second adhesive film layer;

[0033] 20: shielding member; 21: first shielding member; 22: second shielding member; 23: third shielding member; 24: first side edge; 25: second side edge;

[0034] 30: frame; 31: bearing portion; 32: blocking portion; 33: first frame; 34: second frame;

[0035] 40:Silica gel;

[0036] 50: Converging belt;

[0037] D1: first distance; D2: second distance; D3: third distance. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not 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 fixed scope of the utility model.

[0039] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0040] Reference Figure 1 , showing a schematic diagram of the structure of the photovoltaic assembly described in the embodiment of the utility model; referring to Figure 2 , showing a partial cross-sectional view of a photovoltaic module when the long frame is a dust-proof frame; referring to Figure 3 , showing a partial cross-sectional view of a photovoltaic module when the short frame is an anti-dust frame; referring to Figure 4 , showing a partial cross-sectional view of the photovoltaic assembly in another embodiment of the utility model; referring to Figure 5 , showing a partial cross-sectional view of the photovoltaic assembly in another embodiment of the utility model; referring to Figure 6 , showing a partial cross-sectional view of a photovoltaic module in another embodiment of the present utility model; referring to Figure 7 , showing a schematic diagram of the position of the shielding member described in the embodiment of the utility model.

[0041] like Figures 1 to 7As shown, the embodiment of the utility model discloses a laminate, the laminate 10 comprises a back glass 12, a first adhesive film layer 13, a battery string layer 11, a second adhesive film layer 15 and a front glass 14 stacked in sequence, wherein the back glass 12 is connected to the back of the battery string layer 11 through the first adhesive film layer 13, and the front glass 14 is connected to the front of the battery string layer 11 through the second adhesive film layer 15; along the extension direction of the laminate 10, there is a first distance D1 between the edge of the battery string layer 11 and the edge of the laminate 10; the laminate The component 10 also includes a shielding member 20, which is connected to the area near the edge of the laminate 10. Along the extension direction of the laminate 10, the shielding member 20 has a first side edge 24 and a second side edge 25 that are relatively arranged. There is a second distance D2 between the first side edge 24 and the edge of the laminate 10, and the second distance D2 is greater than or equal to the first distance D1. There is a third distance D3 between the second side edge 25 and the edge of the laminate 10, and the third distance D3 is greater than or equal to 0 mm and less than or equal to 2 mm.

[0042] like Figures 1 to 7 As shown, along the thickness direction of the laminate 10, the laminate 10 includes a back glass 12, a first adhesive film layer 13, a battery string layer 11, a second adhesive film layer 15 and a front glass 14 stacked in sequence. The battery string layer 11 is the core component of the laminate 10, and the battery string layer 11 can convert solar energy into electrical energy. The back glass 12 is connected to the back of the battery string layer 11 through the first adhesive film layer 13, and the front glass 14 is connected to the front of the battery string layer 11 through the second adhesive film layer 15. Therefore, the battery string layer 11 is supported and protected by the back glass 12 and the front glass 14 to improve the reliability of the photovoltaic module.

[0043] It should be noted that the front side of the battery string layer 11 is the light-receiving side of the battery string layer 11, that is, the side of the battery string layer 11 facing the sunlight. The back side of the battery string layer 11 is the backlight side of the battery string layer 11, that is, the side of the battery string layer 11 away from the sunlight.

[0044] The battery string layer 11 includes a plurality of battery cells, which are arranged at intervals and connected in series or in parallel through electrical connectors to form a battery string. The battery string is then laid flat in the laminate 10, thereby forming a battery string layer 11 in the laminate 10. The battery string layer 11 absorbs solar energy and converts it into electrical energy.

[0045] like Figures 1 to 7As shown, along the extension direction of the laminate 10, there is a first distance D1 between the edge of the battery string layer 11 and the edge of the laminate 10. That is, along the extension direction of the laminate 10, the battery string layer 11 does not extend to the edge of the laminate 10. In the embodiment of the utility model, the setting of the first distance D1 can make the battery string layer 11 located inside the laminate 10, avoiding the battery string layer 11 being too close to the edge of the laminate 10, causing water to enter the battery string layer 11, and causing a short circuit.

[0046] like Figures 1 to 7 As shown, the laminate 10 disclosed in the embodiment of the present invention further includes a shielding member 20, which is connected to the region near the edge of the laminate 10, and has a first side edge 24 and a second side edge 25 arranged opposite to each other along the extension direction of the laminate 10. Figure 7 As shown, along the extension direction of the laminate 10, the first side 24 of the shielding member 20 is a side relatively far from the edge of the laminate 10, and the second side 25 of the shielding member 20 is a side relatively close to the edge of the laminate 10. The first side 24 and the edge of the laminate 10 have a second distance D2.

[0047] In the embodiment of the utility model, the second distance D2 is set to be greater than or equal to the first distance D1, so that the edge area of ​​the battery string group 11 close to the laminate 10 can be shielded by the shielding member 20, avoiding the silicone 40 bonding the laminate 10 to the frame 30 from being seen from the outside of the photovoltaic module, thereby improving the appearance consistency of the photovoltaic module and making the photovoltaic module more beautiful.

[0048] like Figure 4 As shown, in the embodiment of the present invention, there is a third distance D3 between the second side 25 of the shielding member 20 and the edge of the laminate 10, and the third distance D3 is greater than or equal to 0 mm and less than or equal to 2 mm. For example, the third distance D3 can be 0 mm, 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.7 mm, 2 mm, etc.

[0049] In the embodiment of the utility model, there is a third distance D3 between the second side 25 of the shielding member 20 and the edge of the laminate 10, and the third distance D3 is set to be greater than or equal to 0 mm and less than or equal to 2 mm. The setting of the third distance D3 can improve the reliability of the photovoltaic module and avoid the influence of the setting of the shielding member 20 on the reliability of the photovoltaic module. It should be noted that the shielding member 20 in the embodiment of the utility model can be set inside the laminate 10, that is, between the front glass 14 and the back glass 12, or it can be attached to the surface of the laminate 10. For example, the shielding member 20 can be attached to the side of the back glass 14 away from the battery string layer 11. In the embodiment of the utility model, there are no excessive restrictions on the specific setting position of the shielding member 20. In actual applications, technicians can set it as needed.

[0050] In addition, it should be noted that the shielding member 20 in the embodiment of the utility model can be a tape, a polyethylene foam, a glaze layer, or an insulating pad. In the embodiment of the utility model, there are no excessive restrictions on the specific material of the shielding member 20. In actual applications, technicians can also select appropriate materials according to needs.

[0051] In order to further improve the consistency of the appearance of the photovoltaic module, in the embodiment of the utility model, the appearance color of the shielding member 20 can be set to be consistent with the appearance color of the laminate 10. For example, when the laminate 10 is black, the shielding member 20 can also be set to black to make the overall appearance of the photovoltaic module more consistent. Of course, in order to make the appearance of the photovoltaic module more beautiful, the appearance color of the shielding member 20 can also be set to be different from the appearance color of the laminate 10. For example, when the laminate 10 is black, the shielding member 20 can be set to white, or the shielding member 20 can be set to red.

[0052] Optionally, a difference between the second distance D2 and the first distance D1 is greater than or equal to 1 mm.

[0053] like Figure 7As shown, in the embodiment of the utility model, the difference between the second distance D2 between the first side 24 of the shielding member 20 and the edge of the laminate 10 and the first distance D1 between the edge of the battery string layer 11 and the edge of the laminate 10 is set to be greater than or equal to 1mm. In the process of connecting the shielding member 20 to the laminate 10, or in the process of laminating the laminate 10, the first adhesive film layer 13 and the second adhesive film layer 15 flow, causing the battery string layer 11 to shift. It is easy for the battery string layer 11 and the shielding member 20 to be misaligned. If the battery string layer 11 and the shielding member 20 are misaligned, a gap will appear between the battery string layer 11 and the shielding member 20, affecting the appearance of the photovoltaic module. Therefore, in the embodiment of the utility model, preferably, the difference between the second distance D2 and the first distance D1 is set to be greater than or equal to 1mm. This redundant design can improve the fault tolerance of the photovoltaic module without increasing the cost, thereby further improving the appearance consistency and aesthetics of the photovoltaic module.

[0054] For example, the difference between the second distance D2 and the first distance D1 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. In the embodiment of the utility model, there are no excessive restrictions on the specific difference between the second distance D2 and the first distance D1, and any value greater than or equal to 1 mm is acceptable. In actual applications, technicians can set it as needed.

[0055] Alternatively, if Figures 2 to 7 As shown, the first distance D1 in the embodiment of the utility model is greater than or equal to 18 mm and less than or equal to 22 mm; the width of the shielding member 20 is greater than or equal to 16 mm and less than or equal to 23 mm.

[0056] like Figures 2 to 7 As shown, in the embodiment of the utility model, along the extension direction of the laminate 10 , the first distance D1 between the edge of the battery string layer 11 and the edge of the laminate 10 is set to be greater than or equal to 18 mm and less than or equal to 22 mm to improve the reliability of the laminate 10 .

[0057] Illustratively, along the extension direction of the laminate 10 , the first distance D1 between the edge of the battery string layer 11 and the edge of the laminate 10 may be set to 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, and so on.

[0058] like Figures 2 to 6 As shown, in the embodiment of the utility model, the width of the shielding member 20 is set to be greater than or equal to 16 mm and less than or equal to 23 mm along the extension direction of the laminate 10. The width of the shielding member 20 is greater than the first distance D1, so that the shielding member 20 shields the gap between the edge of the battery string layer 11 and the edge of the laminate 10, thereby improving the appearance consistency of the photovoltaic module.

[0059] Illustratively, along the extension direction of the laminate 10 , the width of the shielding member 20 may be set to 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 22 mm, 23 mm, and so on.

[0060] Alternatively, if Figure 2 and Figure 4 As shown, the shielding member 20 in the embodiment of the utility model includes a first shielding member 21, wherein the first shielding member 21 is arranged between the first film layer 13 and the second film layer 15, or the first shielding member 21 is arranged between the first film layer 13 and the back glass 12.

[0061] like Figure 2 and Figure 3 As shown, in the embodiment of the utility model, the first shielding member 21 can be arranged near the edge of the laminate 10 and between the first adhesive film layer 13 and the second adhesive film layer 15. That is to say, the battery string layer 11 and the first shielding member 21 are both located between the first adhesive film layer 13 and the second adhesive film layer 15, and along the extension direction of the laminate 10, the first shielding member 21 and the battery string layer 11 are at least partially overlapped. Therefore, the gap between the edge of the battery string layer 11 and the edge of the laminate 10 can be shielded by the first shielding member 21 to improve the appearance consistency of the photovoltaic module.

[0062] like Figure 4 As shown, in the embodiment of the utility model, the first shielding member 21 can also be arranged at a position close to the edge of the laminate 10, and between the back glass 12 and the first adhesive film layer 13. In addition, the first shielding member 21 has a projection on the plane where the battery string layer 11 is located, and the projection can cover the gap between the edge of the battery string layer 11 and the edge of the laminate 10. Therefore, the gap between the edge of the battery string layer 11 and the edge of the laminate 10 can be shielded by the first shielding member 21, so that the appearance consistency of the photovoltaic module is better.

[0063] It should be noted that the first shielding member 21 in the embodiment of the utility model can be a tape, polyethylene foam, or an insulating gasket. In the case where the first shielding member 21 is a tape, polyethylene foam, or an insulating gasket, the tape, polyethylene foam, or insulating gasket can be disposed between the first adhesive film layer 13 and the second adhesive film layer 15, or between the first adhesive film layer 13 and the back glass 12.

[0064] Of course, the above are only individual examples of the specific material and specific configuration of the first shielding member 21, and are not intended to be limitations of the present invention. In actual applications, technicians can also select a suitable material as the first shielding member 21 as needed.

[0065] Alternatively, if Figure 5 and Figure 6 As shown, the shielding member 20 in the embodiment of the utility model includes a second shielding member 22 and a third shielding member 23, wherein the second shielding member 22 is connected to the area of ​​the back glass 12 close to the edge of the laminate 10, and the third shielding member 23 is arranged in the laminate; on the plane where the battery string layer 11 is located, the third shielding member 23 has a first projection, and the second shielding member 22 has a second projection, the first projection is located between the battery string layer 11 and the second projection, and the first projection at least partially falls into the battery string layer 11 and the second projection.

[0066] like Figure 5 and Figure 6 As shown, in the embodiment of the present invention, the second shielding member 22 can be connected to the area of ​​the back glass 12 near the edge of the laminate 10. Specifically, as Figure 4 As shown, the second shielding member 22 can be connected to the front side of the rear glass 12 near the edge of the laminate 10. Figure 5 As shown, the second shielding member 22 may also be connected to the rear surface of the rear glass 12 near the edge of the laminate 10 .

[0067] The third shielding member 23 is disposed in the laminate 10 .

[0068] On the plane where the battery string layer 11 is located, the third shielding member 23 has a first projection, and the second shielding member 22 has a second projection, the first projection is located between the battery string layer 11 and the second projection, and the first projection at least partially falls into the battery string layer 11 and the second projection. Thus, the gap between the edge of the battery string layer 11 and the edge of the laminate 10 can be shielded by the second shielding member 22 and the third shielding member 23.

[0069] It should be noted that the second shielding member 22 in the embodiment of the utility model can be one of adhesive tape, polyethylene foam, and insulating gasket strips. The third shielding member 23 can be one of adhesive tape, polyethylene foam, glaze coating, and insulating gasket strips. The material of the second shielding member 22 can be the same as the material of the third shielding member 23, and the material of the second shielding member 22 can also be different from the material of the third shielding member 23. In this regard, the embodiments of the utility model do not make specific restrictions. In actual applications, technicians can set the specific materials of the second shielding member 22 and the third shielding member 23 as needed.

[0070] Alternatively, if Figure 5 and Figure 6 As shown, along the extension direction of the laminate 10 , the sum of the width of the second shielding member 22 and the width of the third shielding member 23 is greater than the first distance D1 .

[0071] like Figure 5 and Figure 6As shown, in the embodiment of the utility model, along the extension direction of the laminate 10, the sum of the width of the second shielding member 22 and the width of the third shielding member 23 is set to be greater than the first distance D1. The second shielding member 22 and the third shielding member 23 shield the gap between the battery string layer 11 and the edge of the laminate 10, so as to improve the appearance consistency of the photovoltaic module and make the photovoltaic module more beautiful.

[0072] Alternatively, if Figure 5 and Figure 6 As shown, the second shielding member 22 and the third shielding member 23 in the embodiment of the utility model are both connected to the back glass 12; and the second shielding member 22 and the third shielding member 23 are located on the same side of the back glass 12, or, the second shielding member 22 and the third shielding member 23 are located on different sides of the back glass 12.

[0073] like Figure 5 As shown, in the embodiment of the utility model, the second shielding member 22 can be connected to the front area of ​​the back glass 12 close to the edge of the back glass 12, and the third shielding member 23 can be connected to the front area of ​​the back glass 12 close to the edge of the second shielding member 22. The second shielding member 22 and the third shielding member 23 are located on the same side of the back glass 12, and the projections of the second shielding member 22 and the third shielding member 23 on the plane where the battery string layer 11 is located overlap with the battery string layer 11. Therefore, the gap between the edge of the battery string layer 11 and the edge of the laminate 10 can be shielded by the second shielding member 22 and the third shielding member 23.

[0074] like Figure 6 As shown, in the embodiment of the utility model, the second shielding member 22 can be connected to the back of the back glass 12 near the edge of the back glass 12, and the third shielding member 23 can be connected to the front of the back glass 12, and the projection of the third shielding member 23 on the back glass 12 overlaps with the projection of the second shielding member 22 on the back glass 12. The second shielding member 22 and the third shielding member 23 are located on the opposite sides of the back glass 12. In addition, the projections of the second shielding member 22 and the third shielding member 23 on the plane where the battery string layer 11 is located overlap with the battery string layer 11. Therefore, the gap between the edge of the battery string layer 11 and the edge of the laminate 10 can be shielded by the second shielding member 22 and the third shielding member 23.

[0075] For example, Figure 5 and Figure 6 As shown, the second shielding member 22 in the embodiment of the utility model can be a glaze layer, and the third shielding member 23 can be an adhesive tape. The glaze layer is attached to the side of the back glass 12 close to the battery string layer 11, or the glaze layer is attached to the side of the back glass 12 away from the battery string layer 11; the adhesive tape is connected to the side of the back glass 12 close to the battery string layer 11.

[0076] like Figure 5 As shown, in the embodiment of the utility model, the glaze layer can be connected to the front area of ​​the back glass 12 near the edge of the back glass 12, and the tape can be connected to the front area of ​​the back glass 12 near the edge of the glaze layer. The glaze layer and the tape are located on the same side of the back glass 12, and the projections of the glaze layer and the tape on the plane where the battery string layer 11 is located overlap with the battery string layer 11. Therefore, the gap between the edge of the battery string layer 11 and the edge of the laminate 10 can be shielded by the glaze layer and the tape.

[0077] like Figure 6 As shown, in the embodiment of the utility model, the glaze layer can be connected to the back of the back glass 12 near the edge of the back glass 12, and the tape can be connected to the front of the back glass 12, and the projection of the tape on the back glass 12 overlaps with the projection of the glaze layer on the back glass 12. The glaze layer and the tape are located on different sides of the back glass 12. The projections of the glaze layer and the tape on the plane where the battery string layer 11 is located overlap with the battery string layer 11. Therefore, the gap between the edge of the battery string layer 11 and the edge of the laminate 10 can be shielded by the glaze layer and the tape.

[0078] Of course, the above implementation of setting the second shielding member 22 as a glaze layer and the third shielding member 23 as a tape is only an individual example of the present invention and is not intended to be a limitation of the present invention. In actual applications, technicians can also select specific materials for the second shielding member 22 and the third shielding member 23.

[0079] The embodiment of the utility model further discloses a photovoltaic assembly. The photovoltaic assembly comprises the laminate 10 and the frame 30 described in the above embodiment. The laminate 10 is connected to the frame 30 .

[0080] like Figures 1 to 6 As shown, the photovoltaic assembly in the embodiment of the utility model includes the laminate 10 and the frame 30 described in the above embodiment, and the laminate 10 is connected to the frame 30 to support and protect the laminate 10 through the frame 30.

[0081] For example, Figure 2 and Figure 6 As shown, in the embodiment of the utility model, the laminate 10 can be bonded to the frame 30 by means of the silicone 40. However, the silicone 40 can be seen from the light-receiving surface of the photovoltaic module through the gap between the battery string layer 11 and the edge of the laminate 10, resulting in an unsightly appearance of the photovoltaic module. Therefore, in the embodiment of the utility model, in order to improve the appearance of the photovoltaic module, the shielding member 20 is connected to the area near the edge of the laminate 10, and the shielding member 20 shields the gap between the battery string layer 11 and the edge of the laminate 10, thereby improving the appearance of the photovoltaic module.

[0082] Alternatively, if Figure 7 As shown, along the extension direction of the frame 30 , the length of the shielding member 20 is greater than the length of the battery string layer 11 and less than the length of the laminate 10 .

[0083] like Figure 7 As shown, in the embodiment of the utility model, along the extension direction of the frame 30, the length of the shielding member 20 is set to be greater than the length of the battery string layer 11. Along the extension direction of the frame 30, the shielding member 20 can shield the entire area of ​​the battery string layer 11 close to the edge of the laminate 10, thereby improving the appearance consistency of the photovoltaic module and improving the aesthetics of the photovoltaic module.

[0084] Furthermore, along the extension direction of the frame 30 , the length of the shielding member 20 is set to be smaller than the length of the laminate 10 , so as to avoid the setting of the shielding member 30 affecting the reliability of the photovoltaic module.

[0085] Alternatively, if Figure 2 and Figure 6 As shown, the frame 30 in the embodiment of the utility model includes a bearing portion 31 and a blocking portion 32 connected to the bearing portion 31, wherein the back side of the laminate 10 is connected to the bearing portion 31, and the side surface of the laminate 10 is connected to the blocking portion 32; along the thickness direction of the laminate 10, the height of the top of the blocking portion 32 is not higher than the height of the light-receiving surface of the laminate 10.

[0086] like Figure 2 and Figure 6 As shown, the frame 30 in the embodiment of the utility model includes a bearing portion 31 and a blocking portion 32 connected to the bearing portion 31. Exemplarily, the blocking portion 32 is vertically connected to the bearing portion 31. The back of the laminate 10 is connected to the bearing portion 31 to support and support the laminate 10 through the bearing portion 31. The side of the laminate 10 is connected to the blocking portion 32 to limit the position of the laminate 10 through the blocking portion 32, and the blocking portion 32 can seal the side of the laminate 10 to improve the reliability of the photovoltaic module.

[0087] It should be noted that the photovoltaic module in the embodiment of the utility model is a dust-proof photovoltaic module. That is, along the thickness direction of the laminate 10, the height of the top of the blocking portion 32 is not higher than the height of the light-receiving surface of the laminate 10. Rainwater and other liquids can wash away dust and impurities on the light-receiving surface of the laminate 10, so that the dust and impurities can flow away from the light-receiving surface of the laminate 10, avoiding the light-receiving surface of the laminate 10 from being blocked, thereby improving the photoelectric conversion efficiency of the photovoltaic module.

[0088] Alternatively, if Figure 1 and Figure 6As shown, the frame 30 in the embodiment of the utility model includes a first frame 33 and a second frame 34 connected to the first frame 33, wherein, along the thickness direction of the laminate 10, the height of the first frame 33 is not higher than the height of the light-receiving surface of the laminate 10; and / or, the height of the second frame 34 is not higher than the height of the light-receiving surface of the laminate 10.

[0089] like Figure 1 and Figure 7 As shown, the frame 30 in the embodiment of the utility model includes a first frame 33 and a second frame 34 connected to the first frame 33. When the first frame 33 is a short frame of the photovoltaic module, the second frame 34 is a long frame of the photovoltaic module. When the first frame 33 is a long frame of the photovoltaic module, the second frame 34 is a short frame of the photovoltaic module.

[0090] The following description will be made by taking the first frame 33 as a short frame and the second frame 34 as a long frame as an example.

[0091] The photovoltaic module in the embodiment of the utility model is a dust-proof photovoltaic module, that is, the height of at least one frame of the photovoltaic module is not higher than the height of the light-receiving surface of the laminate 10. The frame can be a short frame of the photovoltaic module or a long frame of the photovoltaic module. That is, along the thickness direction of the laminate 10, the height of the first frame 33 is not higher than the height of the light-receiving surface of the laminate 10, and / or the height of the second frame 34 is not higher than the height of the light-receiving surface of the laminate 10. This allows dust and impurities to flow away from the light-receiving surface of the laminate 10, avoiding the light-receiving surface of the laminate 10 from being blocked, so as to improve the photoelectric conversion efficiency of the photovoltaic module.

[0092] Alternatively, if Figure 3 As shown, the laminate 10 in the embodiment of the utility model also includes a busbar 50, wherein the busbar 50 is spaced apart from the battery string layer 11 along the extension direction of the second frame 34, and the busbar 50 is located between the first adhesive film layer 13 and the second adhesive film layer 15; along the direction perpendicular to the plane where the battery string layer 11 is located, the shielding member 20 is located below the busbar 50.

[0093] like Figure 3 As shown, in the case where the short frame is an anti-dust frame, along the extension direction of the second frame 34, that is, along the extension direction of the long frame, the bus strip 50 is spaced apart from the battery string layer 11, and the battery string layer 11 is connected to the bus strip 50 through a welding strip, so as to collect the current generated by the battery string layer 11 through the bus strip 50 and transmit the current to the external circuit.

[0094] like Figure 3As shown, the busbar 50 is displaced between the first adhesive film layer 13 and the second adhesive film layer 15, and the shielding member 20 is arranged below the busbar 50 in a direction perpendicular to the plane where the battery string layer 11 is located, so as to avoid the setting of the shielding member 20 affecting the reliability of the photovoltaic module.

[0095] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0096] Although the optional embodiments of the utility model embodiments have been described, those skilled in the art, once knowing the basic creative concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including optional embodiments and all changes and modifications falling within the scope of the utility model embodiments.

[0097] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the article or terminal device including the elements.

[0098] The technical solution provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the present invention. At the same time, for those skilled in the art, according to the principle and implementation method of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A laminate, characterized in that It includes a back glass, a first adhesive film layer, a battery string layer, a second adhesive film layer and a front glass stacked in sequence, wherein: The back glass is connected to the back of the battery string layer through the first adhesive film layer, and the front glass is connected to the front of the battery string layer through the second adhesive film layer; Along the extension direction of the laminate, there is a first distance between the edge of the battery string layer and the edge of the laminate; The laminate also includes a shielding member, which is connected to an area of ​​the laminate near the edge. Along the extension direction of the laminate, the shielding member has a first side edge and a second side edge that are relatively arranged, a second distance between the first side edge and the edge of the laminate, and the second distance is greater than or equal to the first distance, and a third distance between the second side edge and the edge of the laminate, and the third distance is greater than or equal to 0 mm and less than or equal to 2 mm.

2. The laminate according to claim 1, characterized in that A difference between the second distance and the first distance is greater than or equal to 1 mm.

3. The laminate according to claim 1, characterized in that The first distance is greater than or equal to 18 mm and less than or equal to 22 mm; The width of the shielding member is greater than or equal to 16 mm and less than or equal to 23 mm.

4. The laminate according to claim 1, characterized in that The shielding member includes a first shielding member, wherein: The first shielding member is disposed between the first adhesive film layer and the second adhesive film layer, or the first shielding member is disposed between the first adhesive film layer and the back glass.

5. The laminate according to claim 4, characterized in that The first shielding member includes one of an adhesive tape, a polyethylene foam and an insulating pad.

6. The laminate according to claim 1, characterized in that The shielding member includes a second shielding member and a third shielding member, wherein: The second shielding member is connected to the area of ​​the back glass close to the edge of the laminate, and the third shielding member is arranged in the laminate; On the plane where the battery string layer is located, the third shielding member has a first projection, the second shielding member has a second projection, the first projection is located between the battery string layer and the second projection, and the first projection at least partially falls within the battery string layer and the second projection.

7. The laminate according to claim 6, characterized in that Along the extending direction of the laminate, the sum of the width of the second shielding member and the width of the third shielding member is greater than the first distance.

8. The laminate according to claim 6, characterized in that The second shielding member and the third shielding member are both connected to the rear glass; The second shielding member and the third shielding member are located on the same side of the rear glass, or the second shielding member and the third shielding member are located on different sides of the rear glass.

9. The laminate according to any one of claims 6 to 8, characterized in that The second shielding member includes a glaze layer, and the third shielding member includes an adhesive tape, wherein: The glaze layer is attached to a side of the back glass close to the battery string layer, or the glaze layer is attached to a side of the back glass away from the battery string layer; The adhesive tape is connected to a side of the rear glass close to the battery string layer.

10. A photovoltaic module, characterized in that: The invention comprises the laminate according to any one of claims 1 to 9 and a frame, wherein the laminate is connected to the frame.

11. The photovoltaic module according to claim 10, characterized in that: Along the extension direction of the frame, the length of the shielding member is greater than the length of the battery string layer and less than the length of the laminate.

12. The photovoltaic module according to claim 10, characterized in that: The frame includes a bearing portion and a blocking portion connected to the bearing portion, wherein: The back side of the laminate is connected to the bearing portion, and the side side of the laminate is connected to the blocking portion; Along the thickness direction of the laminate, the height of the top of the blocking portion is not higher than the height of the light receiving surface of the laminate.

13. The photovoltaic module according to claim 10, characterized in that: The frame includes a first frame and a second frame connected to the first frame, wherein: Along the thickness direction of the laminate, the height of the first frame is not higher than the height of the light-receiving surface of the laminate; And / or, the height of the second frame is not higher than the height of the light-receiving surface of the laminate.

14. The photovoltaic module according to claim 13, characterized in that: The laminate further comprises a busbar, wherein Along the extension direction of the second frame, the busbar is spaced apart from the battery string layer, and the busbar is located between the first adhesive film layer and the second adhesive film layer; Along a direction perpendicular to the plane where the battery string layer is located, the shielding member is located below the busbar.

Images