Double-glass assembly and full-screen double-glass photovoltaic structure

Abstract

The utility model discloses a double-glass assembly and a full-screen double-glass photovoltaic structure, and belongs to the technical field of photovoltaic assemblies. The double-glass assembly comprises front plate glass, back plate glass and a battery piece, and the front plate glass is located on the upper layer of the double-glass assembly; the backboard glass is located on the lower layer of the double-glass assembly. The battery piece is positioned between the front plate glass and the back plate glass; a glaze-plated layer is arranged on one side, close to the battery pieces, of the backboard glass, the glaze-plated layer is in a grid shape, and each battery piece is located in a grid which is not plated with glaze; an unglazed area exists between the glazed layer on the back plate glass and each edge of the back plate glass, and the unglazed area is covered with an isolation belt. The non-glaze-plated area on the periphery of the backboard glass is covered with the isolation strip, so that the colloid overflowing to the non-glaze-plated area can be effectively shielded, and the appearance of the photovoltaic structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, and more specifically, to a double-glass component and a full-screen double-glass photovoltaic structure. Background Art

[0002] Double-glass modules are photovoltaic modules composed of two pieces of glass and a cell between the two pieces of glass. In order to improve the light utilization rate of double-glass modules, a reflective glaze layer is usually set on the glass surface of the double-glass modules. In addition, the combination of double-glass modules and full-screen frames without A-side can also effectively improve the self-cleaning ability of photovoltaic modules.

[0003] The mainstream double-glass modules currently used are transparent double-glass modules and grid double-glass modules. Since grid double-glass has a greater advantage in power than transparent double-glass, grid double-glass modules are more widely used.

[0004] The grid double-glass module is formed by glazing, but the glazed glass is affected by the glazing process. The glazed area cannot cover the edge of the glass. There will be an unglazed area between the glazed area and the edge of the glass. The width of the unglazed area is usually about 5mm. When a full-screen photovoltaic structure is formed by double-glass modules and a full-screen frame without an A-side, the full-screen frame has no A-side obstruction. In addition, the double-glass module and the full-screen frame are assembled together by gluing. When gluing, there are fluctuations in the gluing line. After the frame is assembled, the glue line is prone to overflow, which will seriously affect the appearance of the photovoltaic structure in the unglazed area. Utility Model Content

[0005] The utility model provides a double-glass component and a full-screen double-glass photovoltaic structure, which solves the problem that after a grid double-glass component formed by glaze plating and a full-screen photovoltaic structure formed by a full-screen frame without an A-side, the unglazed area on the edge of the glass will seriously affect the appearance of the photovoltaic structure.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0007] A double-glass component, comprising:

[0008] The front glass is located on the upper layer of the double-glass assembly;

[0009] Back glass, located at the bottom layer of the double-glass assembly;

[0010] A battery cell is located between the front glass and the back glass;

[0011] A glaze layer is provided on the side of the back plate glass close to the cell, the glaze layer is in a grid shape, and each cell is located in an unglazed grid;

[0012] There is an unglazed area between the glazed layer on the back panel glass and each edge of the back panel glass, and the unglazed area is covered with an isolation belt.

[0013] Furthermore, the width of the isolation zone is greater than the width of the unglazed area.

[0014] Furthermore, the isolation zone includes a substrate insulating layer, an adaptable layer and a protective layer; the adaptable layer is located on both sides of the substrate insulating layer, and the protective layer is located on the outer side of the adaptable layer.

[0015] Furthermore, the substrate insulating layer is formed by a PET layer, the adaptive layer is formed by a fluorine-containing coating layer, and the protective layer is formed by an EVA layer.

[0016] Furthermore, a plurality of fixing positions are arranged at intervals on the isolation belt, and the isolation belt is connected to the back panel glass at the fixing positions.

[0017] Furthermore, a front glass adhesive film is arranged between the front glass plate and the battery cell.

[0018] Furthermore, a back glass adhesive film is arranged between the back panel glass and the battery cell.

[0019] The utility model also provides a full-screen double-glass photovoltaic structure, including:

[0020] The double-glass component;

[0021] A frame, surrounding the double-glass assembly, including a limiting portion and a supporting portion;

[0022] The double-glass component is supported on the supporting portion, and the limiting portion is located outside the double-glass component.

[0023] Furthermore, a glue layer is applied between the limiting portion and the double-glass component.

[0024] Furthermore, a glue layer is applied between the support portion and the double-glass component.

[0025] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0026] (1) The double-glass component of the present invention covers the unglazed area around the back glass with an isolation belt, which can effectively block the glue overflowing to the unglazed area, thereby improving the appearance of the photovoltaic structure.

[0027] (2) In the double-glass component of the present invention, the isolation zone includes a substrate insulating layer, an adaption layer and a protective layer. The isolation zone is formed by different material layers and has excellent electrical insulation performance, outstanding aging resistance and good dimensional stability.

[0028] (3) The full-screen double-glass photovoltaic structure of the present invention includes a double-glass component and a frame. The frame surrounds the double-glass component and has the effect of a double-glass component. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the cross section of the photovoltaic structure;

[0030] Figure 2 Schematic diagram of setting isolation strips and battery cells for the back glass;

[0031] Figure 3 Schematic diagram of the isolation zone cross section.

[0032] Description of labels:

[0033] 1. Frame; 11. Limiting part; 12. Supporting part; 2. Glue layer; 3. Isolation tape; 31. Substrate insulating layer; 32. Adaptation layer; 33. Protective layer; 4. Front glass; 5. Front glass adhesive film; 6. Back glass adhesive film; 7. Back glass; 8. Battery cell; 9. Fixing position. DETAILED DESCRIPTION

[0034] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the drawings and embodiments.

[0035] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper" and "lower" quoted in this specification are only for the convenience of narration, and are not used to limit the scope that can be implemented. The change or adjustment of their relative relationship should also be regarded as the scope that the present invention can implement without substantially changing the technical content. In addition, in addition to being used to indicate the orientation or position relationship, the above-mentioned part of the terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0036] Combination Figure 1 and Figure 2 This embodiment provides a double glass assembly, including a front glass 4, a back glass 7 and a battery cell 8. The front glass 4 is located at the upper layer of the double glass assembly, the back glass 7 is located at the lower layer of the double glass assembly, and the battery cell 8 is located between the front glass 4 and the back glass 7.

[0037] There are a plurality of battery cells 8 , each of which is laid out in rows and columns between the front glass 4 and the back glass 7 , and there is a certain interval between each adjacent battery cell 8 , and the intervals are all consistent.

[0038] As the core component of the solar photovoltaic structure, the double-glass module is the key to converting solar energy into electrical energy. The double-glass module in this embodiment is located in the sunlight, and the sunlight passes through the front glass 4 and shines on the cell 8, which converts solar energy into electrical energy.

[0039] In order to improve the energy conversion efficiency of converting solar energy into electrical energy, a glaze layer is provided on the side of the back glass 7 close to the cell 8. The glaze layer is in a grid shape, and each cell 8 is located in an unglazed grid. The glaze layer has a reflective ability and can reflect part of the sunlight back to the cell 8, thereby improving the utilization rate of solar energy.

[0040] The glaze layer on the back glass 7 is affected by the glazing process, and the coverage area of ​​the glaze layer cannot completely cover the entire surface of the back glass 7, so that there will be unglazed areas between the glaze layer on the back glass 7 and each edge of the back glass 7. After the double-glass component is assembled with the frame 1 without A surface to form a full-screen photovoltaic structure, in order to prevent the unglazed area from being affected by the overflow of glue from the glue line and affecting the appearance of the photovoltaic structure, in this embodiment, an isolation belt 3 is covered on the unglazed area. There are unglazed areas all around the back glass 7, and the isolation belt 3 is also located around the back glass 7 along with the unglazed area.

[0041] In order to enable the isolation belt 3 to fully cover the unglazed area, the width of the isolation belt 3 is greater than the width of the unglazed area, which can effectively prevent the unglazed area from being uncovered.

[0042] Combination Figure 2 and Figure 3 As shown, in this embodiment, the isolation zone 3 is in the shape of a long strip. The isolation zone 3 includes a substrate insulating layer 31, an adaptable layer 32 and a protective layer 33. The adaptable layer 32 is composed of two layers, which are respectively located on both sides of the substrate insulating layer 31; the protective layer 33 is composed of two layers, which are respectively located on the outer sides of the adaptable layer 32.

[0043] Specifically, the substrate insulating layer 31 is formed of a PET layer, which has excellent electrical insulation performance and avoids short circuit between the battery cell 8 and the frame 1. The adaptation layer 32 is formed of a fluorine-containing coating, which can be adjusted according to the glaze color to improve the appearance of the photovoltaic structure. The protective layer 33 is formed of an EVA layer. The two EVA layers are respectively located on the outside of the isolation belt 3 to prevent the isolation belt 3 from delamination. The isolation belt 3 is formed of different material layers and has excellent electrical insulation performance, outstanding aging resistance and good dimensional stability.

[0044] See Figure 2As shown, in order to facilitate fixing the isolation tape 3 on the back plate glass 7, a plurality of fixing positions 9 are arranged at intervals on the isolation tape 3, and the isolation tape 3 is connected to the back plate glass 7 at the fixing positions 9. As a preferred embodiment, the isolation tape 3 is connected to the back plate glass 7 by spot heating, and spot heating is performed at the fixing positions 9 using a spot heating machine.

[0045] Of course, in other embodiments, the isolation tape 3 and the back glass 7 may also be connected in other ways, such as by gluing the isolation tape 3 to the back glass 7 .

[0046] See Figure 1 As shown in FIG. 1 , a front glass adhesive film 5 is further arranged between the front glass plate 4 and the battery cell 8 ; a back glass adhesive film 6 is further arranged between the back glass plate 7 and the battery cell 8 .

[0047] Another embodiment of the present invention further provides a full-screen double-glass photovoltaic structure, including the double-glass component and the frame 1 mentioned above.

[0048] like Figure 1 As shown, the frame 1 surrounds the double glass assembly, and the frame 1 includes a limiting portion 11 and a supporting portion 12. Specifically, the double glass assembly is supported on the supporting portion 12, and the limiting portion 11 is located outside the double glass assembly.

[0049] The double-glass component is fixedly connected to the frame 1 and pasted by colloid. In this embodiment, a glue layer is applied between the support portion 12 and the double-glass component, and the double-glass component is fixedly pasted on the support portion 12 by colloid. A glue line layer 2 is also applied between the limit portion 11 and the double-glass component.

[0050] When applying the glue line layer 2, due to the volatility of the glue line in the actual production process, the frame 1 in this embodiment is a frame without an A-side. When the frame 1 and the double-glass component are assembled to form a full-screen photovoltaic structure, there is no A-side obstruction. After the glue line layer 2 overflows, the overflowed colloid can easily enter between the front glass 4 and the back glass 7. The overflowed colloid can be clearly seen in the unglazed area, seriously affecting the appearance of the photovoltaic structure.

[0051] In this embodiment, the unglazed area around the back glass 7 is covered with an isolation tape 3, which can effectively block the glue overflow of the glue line layer 2 and improve the appearance of the photovoltaic structure.

[0052] The terms "installed", "set", "provided with", and "connected" referred to herein should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A double-glass component, comprising: A front glass (4), located on the upper layer of the double-glass assembly; Back glass (7), located at the lower layer of the double glass assembly; A battery cell (8) is located between the front glass (4) and the back glass (7); Features: A glaze layer is provided on the side of the back plate glass (7) close to the battery cell (8), the glaze layer is in a grid shape, and each battery cell (8) is located in an unglazed grid; There is an unglazed area between the glazed layer on the back panel glass (7) and each edge of the back panel glass (7), and the unglazed area is covered with an isolation belt (3).

2. The double-glass assembly according to claim 1, characterized in that: The width of the isolation zone (3) is greater than the width of the unglazed area.

3. The double-glass assembly according to claim 1 or 2, characterized in that: The isolation zone (3) comprises a substrate insulating layer (31), an adaptable layer (32) and a protective layer (33); the adaptable layer (32) is located on both sides of the substrate insulating layer (31), and the protective layer (33) is located on the outside of the adaptable layer (32).

4. The double-glass assembly according to claim 3, characterized in that: The substrate insulating layer (31) is formed of a PET layer, the adaptive layer (32) is formed of a fluorine-containing coating layer, and the protective layer (33) is formed of an EVA layer.

5. The double-glass assembly according to claim 3, characterized in that: A plurality of fixing positions (9) are arranged at intervals on the isolation belt (3), and the isolation belt (3) is connected to the back panel glass (7) at the fixing positions (9).

6. The double-glass assembly according to claim 1, characterized in that: A front glass adhesive film (5) is also provided between the front plate glass (4) and the battery sheet (8).

7. The double-glass assembly according to claim 6, characterized in that: A back glass adhesive film (6) is also provided between the back plate glass (7) and the battery sheet (8).

8. A full-screen double-glass photovoltaic structure, characterized by: include, The double-glass component according to any one of claims 1 to 7; A frame (1) surrounds the double-glass assembly and comprises a limiting portion (11) and a supporting portion (12); The double-glass component is supported on the support portion (12), and the limiting portion (11) is located on the outer side of the double-glass component.

9. The full-screen double-glass photovoltaic structure according to claim 8, characterized in that: A glue line layer (2) is applied between the limiting portion (11) and the double-glass component.

10. The full-screen double-glass photovoltaic structure according to claim 9, characterized in that: A glue layer is applied between the support portion (12) and the double-glass component.

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