Double-glass curved tile

Abstract

The utility model relates to a double-glass curved surface tile, which belongs to the technical field of photovoltaic tiles and comprises a photovoltaic panel assembly, a waveform upper glass sheet and a waveform lower glass sheet, the upper surface of the photovoltaic panel assembly is adhered to the lower surface of the upper glass sheet through an upper adhesive film, and the lower surface of the photovoltaic panel assembly is adhered to the upper surface of the lower glass sheet through a lower adhesive film; the photovoltaic panel assembly sequentially comprises an upper flexible plate, an upper packaging adhesive film, a photovoltaic thin plate, a lower packaging adhesive film and a lower flexible plate which are connected in a hot melting mode from top to bottom. According to the utility model, the upper flexible plate, the upper packaging adhesive film, the lower packaging adhesive film and the lower flexible plate are respectively connected to the upper surface and the lower surface of the photovoltaic thin plate in a hot melting manner, so that the photovoltaic thin plate can be protected when the corrugated upper glass sheet and the corrugated lower glass sheet are bonded, subfissure of the photovoltaic thin plate is avoided, the yield of the double-glass curved-surface tile is improved, and the production cost is reduced. And the manufacturing cost of the double-glass curved tile is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic tiles, in particular to a double-glass curved tile. Background Art

[0002] With the continuous development of economy and society and the advancement of science and technology, more and more people like to replace traditional earthen tiles with double-glass curved tiles that can generate electricity, so as to improve the appearance of the house while creating certain economic benefits and increasing residents' income.

[0003] At present, the mainstream double-glass curved tiles mainly encapsulate CIGS thin-film photovoltaics inside to adapt to the shape of the double-glass curved tiles and avoid defects such as hidden cracks. However, CIGS thin-film photovoltaics have low power generation efficiency and high manufacturing costs, which is not conducive to large-scale promotion and application.

[0004] In order to solve the above technical problems, researchers have developed a variety of monocrystalline silicon photovoltaics. Due to their low cost and high conversion efficiency, they are gradually replacing traditional CIGS thin-film photovoltaics. However, monocrystalline silicon photovoltaics have high hardness and are not easy to deform, which leads to defects such as hidden cracks in the packaging process of monocrystalline silicon photovoltaics, resulting in an increase in the defective rate of double-glass curved tiles encapsulated with monocrystalline silicon photovoltaics and an increase in manufacturing costs.

[0005] Therefore, how to design a double-glass curved tile with low packaging cost and not prone to hidden cracks and a softening manufacturing method thereof is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] The utility model provides a double-glass curved tile, which solves the technical problem that hidden cracks are easy to occur in single-crystal silicon photovoltaics in the existing double-glass curved tiles.

[0007] The utility model provides a technical solution to the above-mentioned technical problems as follows: a double-glass curved tile, comprising a photovoltaic panel assembly, a corrugated upper glass sheet and a corrugated lower glass sheet, wherein the upper surface of the photovoltaic panel assembly is bonded to the lower surface of the upper glass sheet via an upper adhesive film and the lower surface is bonded to the upper surface of the lower glass sheet via a lower adhesive film; the photovoltaic panel assembly comprises, from top to bottom, an upper flexible plate connected by hot melt, an upper packaging film, a photovoltaic thin plate, a lower packaging film and a lower flexible plate.

[0008] The beneficial effect of the utility model is that the upper flexible plate, the upper packaging film, the lower packaging film and the lower flexible plate are respectively hot-melt connected to the upper and lower sides of the photovoltaic thin plate, which can protect the photovoltaic thin plate when bonding with the corrugated upper glass sheet and the corrugated lower glass sheet, avoid hidden cracks in the photovoltaic thin plate, improve the yield rate of the double-glass curved tile, and reduce the manufacturing cost of the double-glass curved tile.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the photovoltaic sheet has a thickness of 0.1 to 0.15 mm.

[0011] Furthermore, the thickness of the upper packaging film and the lower packaging film are both 0.1-0.3 mm.

[0012] Furthermore, the thickness of the upper softening plate and the lower softening plate is 1 to 1.5 mm.

[0013] Furthermore, the photovoltaic thin plate is made of single crystal silicon material.

[0014] Furthermore, the upper packaging film and the lower packaging film are both made of PT material.

[0015] Furthermore, the upper softening plate and the lower softening plate are both made of PET material.

[0016] In addition, a method for manufacturing a double-glass curved tile is provided, which is characterized in that it includes the double-glass curved tile, and the specific steps are as follows:

[0017] S1. Material preparation: stack the upper flexible plate, upper encapsulation film, photovoltaic sheet, lower encapsulation film and lower flexible plate of the same size from top to bottom, and put the stacked upper flexible plate, upper encapsulation film, photovoltaic sheet, lower encapsulation film and lower flexible plate into the cavity of the forming press;

[0018] S2, softening treatment, raising the temperature of the cavity in the molding machine to 145-155°C for 20-30 minutes. When the upper softening plate, the upper encapsulation film, the photovoltaic sheet, the lower encapsulation film and the lower softening plate are completely melted, a photovoltaic panel assembly is formed;

[0019] S3, lamination treatment, stack the corrugated upper glass sheet, upper adhesive film, photovoltaic panel assembly, lower adhesive film and corrugated lower glass sheet of the same size from top to bottom, and put them into the angle furnace. When they are completely extruded and formed, they form a double-glass curved tile.

[0020] The above-mentioned further beneficial effect is: by using the upper flexible plate, the upper packaging film, the lower packaging film and the lower flexible plate to be hot-melt connected to the upper and lower sides of the photovoltaic thin plate respectively, the photovoltaic thin plate can be protected when being bonded with the corrugated upper glass sheet and the corrugated lower glass sheet, and hidden cracks in the photovoltaic thin plate can be avoided, thereby improving the yield rate of the double-glass curved tile and reducing the manufacturing cost of the double-glass curved tile. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the general assembly structure of a double-glass curved tile of the utility model;

[0022] Figure 2This is a schematic diagram of the split structure of a double-glass curved tile of the utility model;

[0023] Figure 3 This is a schematic diagram of the disassembled structure of an upper softening plate, an upper packaging film, a photovoltaic thin plate, a lower packaging film and a lower softening plate in a double-glass curved tile of the utility model;

[0024] Figure 4 The utility model is a schematic diagram of the process of processing a double-glass curved tile.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Photovoltaic panel assembly, 11. Upper flexible plate, 12. Upper packaging film, 13. Photovoltaic thin plate, 14. Lower packaging film, 15. Lower flexible plate, 2. Upper glass sheet, 3. Lower glass sheet, 4. Upper adhesive film, 5. Lower adhesive film, 6. Press. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] like Figure 1 and Figure 2 As shown, a double-glass curved tile comprises a photovoltaic panel assembly 1, a corrugated upper glass sheet 2 and a corrugated lower glass sheet 3, wherein the upper surface of the photovoltaic panel assembly 1 is bonded to the lower surface of the upper glass sheet 2 via an upper bonding film 4 and the lower surface thereof is bonded to the upper surface of the lower glass sheet 3 via a lower bonding film 5;

[0029] The photovoltaic panel assembly 1 includes, from top to bottom, an upper flexible plate 11, an upper packaging film 12, a photovoltaic thin plate 13, a lower packaging film 14 and a lower flexible plate 15 connected by hot melt. The upper surface of the upper flexible plate 11 is bonded to the lower surface of the upper glass sheet 2 through the upper adhesive film 4, and the lower surface of the lower flexible plate 15 is bonded to the upper surface of the lower glass sheet 3 through the lower adhesive film 5.

[0030] Specifically, the thickness of the photovoltaic sheet 13 may be 0.1-0.15 mm.

[0031] Specifically, the thickness of the packaging film 12 and the lower packaging film 14 may both be 0.1-0.3 mm.

[0032] Specifically, the thickness of the upper softening plate 11 and the lower softening plate 15 may be 1-1.5 mm.

[0033] Specifically, the photovoltaic sheet 13 may be made of single crystal silicon material.

[0034] Specifically, both the upper packaging film 12 and the lower packaging film 14 are made of PT material.

[0035] Specifically, the upper softening plate 11 and the lower softening plate 15 can both be made of PET.

[0036] In addition, a method for manufacturing a double-glass curved tile with softening is provided, including a double-glass curved tile, and the specific steps are as follows:

[0037] S1. Raw material preparation: stack the upper flexible plate 11, the upper encapsulation film 12, the photovoltaic sheet 13, the lower encapsulation film 14 and the lower flexible plate 15 of the same size from top to bottom, and put the stacked upper flexible plate 11, the upper encapsulation film 12, the photovoltaic sheet 13, the lower encapsulation film 14 and the lower flexible plate 15 into the cavity of the forming press 6;

[0038] S2, softening treatment, raising the temperature of the cavity in the molding machine to 145-155°C for 20-30 minutes, and forming the photovoltaic panel assembly 1 after the upper softening plate 11, the upper encapsulation film 12, the photovoltaic thin plate 13, the lower encapsulation film 14 and the lower softening plate 15 are completely melted;

[0039] S3, lamination treatment, stacking the corrugated upper glass sheet 2, the upper adhesive film 4, the photovoltaic panel assembly 1, the lower adhesive film 5 and the corrugated lower glass sheet 3 of the same size from top to bottom, and putting them into the angle furnace. When they are completely extruded and formed, they form a double-glass curved tile.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-glass curved tile, comprising a photovoltaic panel assembly (1), a corrugated upper glass sheet (2) and a corrugated lower glass sheet (3), wherein the upper surface of the photovoltaic panel assembly (1) is bonded to the lower surface of the upper glass sheet (2) via an upper adhesive film (4) and the lower surface of the photovoltaic panel assembly (1) is bonded to the upper surface of the lower glass sheet (3) via a lower adhesive film (5); characterized in that: The photovoltaic panel assembly (1) comprises, from top to bottom, an upper flexible plate (11) connected by hot melt, an upper packaging film (12), a photovoltaic thin plate (13), a lower packaging film (14) and a lower flexible plate (15), wherein the upper surface of the upper flexible plate (11) is bonded to the lower surface of the upper glass sheet (2) via the upper adhesive film (4), and the lower surface of the lower flexible plate (15) is bonded to the upper surface of the lower glass sheet (3) via the lower adhesive film (5).

2. The double-glass curved tile according to claim 1, characterized in that: The photovoltaic sheet (13) has a thickness of 0.1 to 0.15 mm.

3. The double-glass curved tile according to claim 1, characterized in that: The thickness of the upper packaging film (12) and the lower packaging film (14) are both 0.1 to 0.3 mm.

4. The double-glass curved tile according to claim 1, characterized in that: The thickness of the upper softening plate (11) and the lower softening plate (15) is 1 to 1.5 mm.

5. The double-glass curved tile according to claim 1, characterized in that: The photovoltaic thin plate (13) is made of single crystal silicon material.

6. The double-glass curved tile according to claim 1, characterized in that: The upper packaging film (12) and the lower packaging film (14) are both made of PT material.

7. The double-glass curved tile according to claim 1, characterized in that: The upper softening plate (11) and the lower softening plate (15) are both made of PET material.

Images