Solar cell photovoltaic glass with embossed patterns, assembly and system

Abstract

The utility model relates to solar cell photovoltaic glass with embossed patterns, an assembly and a system. In the solar cell photovoltaic system with the embossed patterns, one side of the substrate glass is provided with the first embossed structure area and the second embossed structure area, and the embossed depth of the first embossed structure area is different from that of the second embossed structure area. Therefore, when the butyl rubber is applied to the solar cell photovoltaic glass with the embossed patterns, due to the fact that the binding force between the glue and the glass is weak, a water vapor channel is not easy to form between the glue and the glass under the condition of different embossing depths, the water blocking effect is improved, the binding force is improved through the embossed structure, and the service life of the glass is prolonged. The service life of the assembly is prolonged, meanwhile, the boundary energy of the first knurling structure area and the second knurling structure area with different knurling depths can provide pasting reference for the film structure, the film structure can be pasted more regularly, and the welding strip and the power transmission structure are used for outputting electric energy.

Description

Technical Field

[0001] The present application relates to the technical field of solar cells, and in particular to solar cell photovoltaic glass, components and systems with embossed patterns. Background Art

[0002] Photovoltaic modules are mainly composed of cells, welding strips, busbars, adhesive films, glass, frames, backplanes, junction boxes, cable terminals, etc. Glass is mainly divided into flat glass and rolled glass based on its pattern characteristics. Flat glass is mainly made by the float process, also known as float glass. The surface of float glass is flat and smooth, while rolled glass refers to glass with uneven patterns on one surface.

[0003] With the thinning of module adhesive film, the application of reflective film in the gap of photovoltaic modules (i.e., the reflective film is pasted on the glass surface at the position corresponding to the spacing between cells and strings), and the application of high-resistance water-resistant adhesive (such as butyl adhesive) around the module, single flat glass or rolled glass has become difficult to use on more advanced photovoltaic modules. For example, when butyl adhesive is applied to embossed glass, due to the weak bonding between this adhesive and glass, it is easy to form a water vapor channel between the adhesive and the glass, which reduces the water-blocking effect; when pasting reflective film in the gap on embossed glass, due to the unevenness of the embossed glass, it is easy to cause the reflective film to deform, not stick firmly, or generate bubbles during the lamination process. If flat glass is used, the adhesion between the adhesive film and the glass will be poor, and the module may delaminate during long-term use. Utility Model Content

[0004] Based on this, it is necessary to provide a solar cell photovoltaic glass, component and system with embossed patterns to address the problem that single flat glass or rolled glass is difficult to use in more advanced photovoltaic modules.

[0005] A solar cell photovoltaic glass with an embossed pattern, the solar cell photovoltaic glass with an embossed pattern comprising a substrate glass;

[0006] One side of the substrate glass has a first embossed structure area and a second embossed structure area, and the embossing depth of the first embossed structure area is different from the embossing depth of the second embossed structure area.

[0007] In one embodiment, it is characterized in that the solar cell photovoltaic glass with embossed patterns has a first embossed structure area and a second embossed structure area, and the first embossed structure area is located at the edge of the substrate glass and surrounds the second embossed structure area.

[0008] In one embodiment, the solar cell photovoltaic glass with embossed patterns further comprises an adhesive layer, and the adhesive layer is coated on a side of the substrate glass having the first embossed structure area and the second embossed structure area.

[0009] In one embodiment, the solar cell photovoltaic glass with embossed patterns has a plurality of the first embossed structure areas and one second embossed structure area;

[0010] A plurality of the first embossed structural areas are evenly and regularly arranged on the surface of the substrate glass, and any two adjacent first embossed structural areas are spaced apart from each other. A plurality of grids are formed in the middle of the second embossed structural area and surround the plurality of the first embossed structural areas. The second embossed structural area is located between two adjacent first embossed structural areas, and the plurality of the first embossed structural areas correspond one to one to the plurality of the grids.

[0011] In one embodiment, the embossing depth of the first embossed structure area is deeper than the embossing depth of the second embossed structure area; or

[0012] The embossing depth of the second embossed structure area is deeper than the embossing depth of the first embossed structure area.

[0013] In one embodiment, the difference between the embossing depth of the first embossed structure area and the embossing depth of the second embossed structure area is 0.05-0.3 mm.

[0014] In one embodiment, the first embossed structure area and the second embossed structure area are both composed of a plurality of adjacent embossed grooves, and the bottom walls of the embossed grooves are arc-shaped.

[0015] In one embodiment, the solar cell photovoltaic glass with embossed patterns further has a third embossed structure area, and the embossing depths of the first embossed structure area, the embossing depths of the second embossed structure area, and the embossing depths of the third embossed structure area all have height differences.

[0016] An embodiment of the present application further provides a solar cell photovoltaic module with an embossed pattern, the solar cell photovoltaic module with an embossed pattern comprising: a film structure and a plurality of solar cell photovoltaic glasses with an embossed pattern;

[0017] The edge of the solar cell photovoltaic glass is a first embossed structure area, the adjacent first embossed structure areas of the solar cell photovoltaic glass constitute an attachment area, the film structure is attached to the attachment area, and the film structure is adapted to the attachment area; or

[0018] The edge of the solar cell photovoltaic glass is a second embossed structure area, and the adjacent second embossed structure areas of the solar cell photovoltaic glass constitute an attachment area. The film structure is attached to the attachment area, and the film structure is adapted to the attachment area.

[0019] An embodiment of the present application further provides a solar cell photovoltaic system with an embossed pattern, the solar cell photovoltaic system with an embossed pattern comprising: a welding ribbon, a power transmission structure and the solar cell photovoltaic assembly with the embossed pattern;

[0020] The welding strip and the power transmission structure are both connected to the solar cell photovoltaic glass with embossed patterns.

[0021] In the above-mentioned solar cell photovoltaic system with embossed patterns, one side of the substrate glass has a first embossed structure area and a second embossed structure area, and the embossing depth of the first embossed structure area is different from the embossing depth of the second embossed structure area. Since the substrate glass has the first embossed structure area and the second embossed structure area with different embossing depths, when butyl rubber is applied to the above-mentioned solar cell photovoltaic glass with embossed patterns, since the bonding force between the glue and the glass is weak, it is not easy to form a water vapor channel between the glue and the glass under different embossing depths, thereby improving the water-blocking effect, and improving the bonding force through the embossed structure, extending the service life of the component, and at the same time, the boundary between the first embossed structure area and the second embossed structure area with different embossing depths can provide a reference for pasting the membrane structure, so that the membrane structure can be pasted more regularly, wherein the welding strip and the power transmission structure are used to output electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG. 1 is a schematic diagram of a solar cell photovoltaic glass with an embossed pattern according to an embodiment.

[0023] FIG. 2 is a schematic diagram of a solar cell photovoltaic glass with an embossed pattern according to another embodiment.

[0024] FIG. 3 is a schematic diagram of a solar cell photovoltaic glass with an embossed pattern according to another embodiment.

[0025] FIG. 4 is a schematic diagram of a solar cell photovoltaic glass with an embossed pattern according to yet another embodiment.

[0026] Description of Figure Numbers:

[0027] 100-Solar cell photovoltaic glass with embossed pattern;

[0028] 110- substrate glass;

[0029] 120-first embossed structure area;

[0030] 130 - Second embossed structure area. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0037] Refer to FIG. 1 , which shows a schematic structural diagram of a solar cell photovoltaic glass 100 with an embossed pattern in an embodiment of the present application. The solar cell photovoltaic glass 100 with an embossed pattern provided in an embodiment of the present application includes a substrate glass 110 .

[0038] In the above-mentioned solar cell photovoltaic glass 100 with embossed patterns, one side of the substrate glass 110 has a first embossed structure area 120 and a second embossed structure area 130, and the embossing depth of the first embossed structure area 120 is different from the embossing depth of the second embossed structure area 130. Since the substrate glass 110 has the first embossed structure area 120 and the second embossed structure area 130 with different embossing depths, when butyl rubber is applied to the above-mentioned solar cell photovoltaic glass 100 with embossed patterns, since the bonding force between the glue and the glass is weak, it is not easy to form a water vapor channel between the glue and the glass under different embossing depths, thereby improving the water blocking effect, and improving the bonding force through the embossed structure, thereby extending the service life of the component.

[0039] In one embodiment, it is characterized in that the solar cell photovoltaic glass 100 with an embossed pattern has a first embossed structure area 120 and a second embossed structure area 130. The first embossed structure area 120 is located at the edge of the substrate glass 110 and surrounds the second embossed structure area 130, so that no matter whether the edge is embossed deeply or shallowly, it can provide a certain bonding force for the butyl rubber and block the water vapor channel to improve the water blocking effect. At the same time, the first embossed structure area 120 surrounds the second embossed structure area 130, as shown in Figure 1 or 2, so that when pasting the film structure, it can be pasted according to the edge of the first embossed structure area 120, thereby guiding the pasting of the film structure, making its pasting more regular, thereby improving the service life of the component.

[0040] In one embodiment, the solar cell photovoltaic glass with an embossed pattern also includes an adhesive layer, which is coated on one side of the substrate glass having the first embossed structure area and the second embossed structure area. Specifically, the adhesive layer is butyl adhesive, and can also be other adhesives as long as it meets the usage conditions.

[0041] Referring to FIG. 1 , in one embodiment, the embossing depth of the first embossed structure area 120 is deeper than the embossing depth of the second embossed structure area 130 .

[0042] Referring to FIG. 2 , in another embodiment, the embossing depth of the second embossed structure area 130 is deeper than the embossing depth of the first embossed structure area 120 .

[0043] In one embodiment, the solar cell photovoltaic glass 100 with embossed patterns has a plurality of first embossed structure areas 120 and a second embossed structure area 130;

[0044] A plurality of first embossed structural areas 120 are evenly and regularly arranged on the surface of the glass substrate 110, and any two adjacent first embossed structural areas 120 are spaced apart. The second embossed structural area 130 is located at the edge of the glass substrate 110, and a plurality of grids are formed in the middle of the second embossed structural area 130 and surround the plurality of first embossed structural areas 120. The second embossed structural area 130 is located between two adjacent first embossed structural areas 120, and the plurality of first embossed structural areas 120 correspond one to one to the plurality of grids. In this embodiment, the embossing depth of the first embossed structural area 120 may be deeper than the embossing depth of the second embossed structural area 130, as shown in FIG3 , or the embossing depth of the second embossed structural area 130 may be deeper than the embossing depth of the first embossed structural area 120, as shown in FIG4 , so that a plurality of first embossed structural areas 120 are arranged at intervals, and each first embossed structural area 120 is surrounded by the second embossed structural area 130, thereby providing a certain bonding force for the butyl rubber, blocking the water vapor channel, and improving the water blocking effect. At the same time, the first embossed structural area 120 surrounds the second embossed structural area 130, as shown in FIG3 or 4 , so that when pasting the membrane structure, it can be pasted according to the edge of the first embossed structural area 120, thereby guiding the pasting of the membrane structure, making the pasting more regular, thereby improving the service life of the component.

[0045] In one embodiment, the difference in depth between the embossing depth of the first embossed structure area 120 and the embossing depth of the second embossed structure area 130 is 0.05-0.3 mm.

[0046] In one embodiment, the first embossed structure area 120 and the second embossed structure area 130 are both composed of a plurality of adjacent embossed grooves, and the bottom walls of the embossed grooves are arc-shaped.

[0047] In other embodiments, the embossed groove may also be conical, square, cylindrical, or other shapes, which will not be described in detail here.

[0048] In one embodiment, the solar cell photovoltaic glass 100 with embossed patterns further has a third embossed structure area, and the embossing depths of the first embossed structure area 120, the embossing depths of the second embossed structure area 130, and the embossing depths of the third embossed structure area are all different. In other embodiments, there may be more embossed structures with different embossing depths, and the types of embossed structure areas with different embossing depths are not limited here.

[0049] An embodiment of the present application further provides a solar cell photovoltaic module with an embossed pattern. The solar cell photovoltaic module with an embossed pattern includes: a film structure and a plurality of solar cell photovoltaic glasses 100 with an embossed pattern.

[0050] In one embodiment, the edge of the solar cell photovoltaic glass is the first embossed structure area 120, the first embossed structure areas 120 of adjacent solar cell photovoltaic glasses form an attachment area, the film structure is attached to the attachment area, and the film structure is adapted to the attachment area.

[0051] In another embodiment, the edge of the solar cell photovoltaic glass is the second embossed structure area 130, the adjacent second embossed structure areas 130 of the solar cell photovoltaic glass form an attachment area, the film structure is attached to the attachment area, and the film structure is adapted to the attachment area.

[0052] In the above-mentioned solar cell photovoltaic module with embossed pattern, one side of the substrate glass 110 has a first embossed structure area 120 and a second embossed structure area 130, and the embossing depth of the first embossed structure area 120 is different from the embossing depth of the second embossed structure area 130. Since the substrate glass 110 has the first embossed structure area 120 and the second embossed structure area 130 with different embossing depths, when butyl rubber is applied to the above-mentioned solar cell photovoltaic glass 100 with embossed pattern, since the bonding force between the glue and the glass is weak, it is not easy to form a water vapor channel between the glue and the glass under different embossing depths, thereby improving the water blocking effect, and improving the bonding force through the embossed structure, extending the service life of the module, and at the same time, the boundary of the first embossed structure area 120 and the second embossed structure area 130 with different embossing depths can provide a reference for pasting the film structure, so that the film structure can be pasted more regularly.

[0053] Specifically, the membrane structure is a gap membrane.

[0054] An embodiment of the present application further provides a solar cell photovoltaic system with an embossed pattern, the solar cell photovoltaic system with an embossed pattern comprising: a welding ribbon, a power transmission structure, and a solar cell photovoltaic assembly with an embossed pattern;

[0055] The welding strip and the power transmission structure are both connected to the solar cell photovoltaic glass 100 having an embossed pattern.

[0056] In the above-mentioned solar cell photovoltaic system with embossed patterns, one side of the substrate glass 110 has a first embossed structure area 120 and a second embossed structure area 130, and the embossing depth of the first embossed structure area 120 is different from the embossing depth of the second embossed structure area 130. Since the substrate glass 110 has the first embossed structure area 120 and the second embossed structure area 130 with different embossing depths, when the butyl rubber is applied to the above-mentioned solar cell photovoltaic glass 100 with embossed patterns, since the bonding force between the glue and the glass is weak, it is not easy to form a water vapor channel between the glue and the glass under different embossing depths, thereby improving the water blocking effect, and improving the bonding force through the embossed structure, extending the service life of the component, and at the same time, the boundary of the first embossed structure area 120 and the second embossed structure area 130 with different embossing depths can provide a reference for pasting the membrane structure, so that the membrane structure can be pasted more regularly, wherein the welding strip and the power transmission structure are used to output electric energy.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A solar cell photovoltaic glass with an embossed pattern, characterized in that: The solar cell photovoltaic glass with embossed patterns comprises substrate glass; One side of the substrate glass has a first embossed structure area and a second embossed structure area, and the embossing depth of the first embossed structure area is different from the embossing depth of the second embossed structure area.

2. The solar cell photovoltaic glass with embossed patterns according to claim 1, characterized in that: The solar cell photovoltaic glass with embossed patterns has a first embossed structure area and a second embossed structure area. The first embossed structure area is located at the edge of the substrate glass and surrounds the second embossed structure area.

3. The solar cell photovoltaic glass with embossed patterns according to claim 1, characterized in that: The solar cell photovoltaic glass with embossed patterns further comprises an adhesive layer, and the adhesive layer is coated on a side of the substrate glass having the first embossed structure area and the second embossed structure area.

4. The solar cell photovoltaic glass with embossed patterns according to claim 1, characterized in that: The solar cell photovoltaic glass with embossed patterns has a plurality of the first embossed structure areas and one second embossed structure area; A plurality of the first embossed structural areas are evenly and regularly arranged on the surface of the substrate glass, and any two adjacent first embossed structural areas are spaced apart from each other. A plurality of grids are formed in the middle of the second embossed structural area and surround the plurality of the first embossed structural areas. The second embossed structural area is located between two adjacent first embossed structural areas, and the plurality of the first embossed structural areas correspond one to one to the plurality of the grids.

5. The solar cell photovoltaic glass with embossed patterns according to claim 2 or 4, characterized in that: The embossing depth of the first embossed structure area is deeper than the embossing depth of the second embossed structure area; or The embossing depth of the second embossed structure area is higher than the embossing depth of the first embossed structure area.

6. The solar cell photovoltaic glass with embossed patterns according to claim 1, characterized in that: The difference in depth between the embossing depth of the first embossed structure area and the embossing depth of the second embossed structure area is 0.05-0.3 mm.

7. The solar cell photovoltaic glass with embossed patterns according to claim 1, characterized in that: The first embossed structure area and the second embossed structure area are both composed of a plurality of adjacent embossed grooves, and the bottom walls of the embossed grooves are arc-shaped.

8. The solar cell photovoltaic glass with embossed patterns according to claim 1, characterized in that: The solar cell photovoltaic glass with embossed patterns also has a third embossed structure area, and the embossing depths of the first embossed structure area, the second embossed structure area, and the third embossed structure area all have height differences.

9. A solar cell photovoltaic module with an embossed pattern, characterized in that: The solar cell photovoltaic module with embossed patterns comprises: a film structure and a plurality of solar cell photovoltaic glasses with embossed patterns as claimed in any one of claims 1 to 8; The edge of the solar cell photovoltaic glass is a first embossed structure area, the adjacent first embossed structure areas of the solar cell photovoltaic glass constitute an attachment area, the film structure is attached to the attachment area, and the film structure is adapted to the attachment area; or The edge of the solar cell photovoltaic glass is a second embossed structure area, and the adjacent second embossed structure areas of the solar cell photovoltaic glass constitute an attachment area. The film structure is attached to the attachment area, and the film structure is adapted to the attachment area.

10. A solar cell photovoltaic system with an embossed pattern, characterized in that: The solar cell photovoltaic system with embossed patterns comprises: a welding ribbon, a power transmission structure and the solar cell photovoltaic assembly with embossed patterns as claimed in claim 9; The welding strip and the power transmission structure are both connected to the solar cell photovoltaic glass with embossed patterns.

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