CN210778623U

CN210778623U - Lightweight photovoltaic module with rigid characteristics

Info

Publication number: CN210778623U
Application number: CN201921323493.7U
Authority: CN
Inventors: 汤鸿祥; 陈彦全; 许汎玮
Original assignee: Opes Changzhou Energy Technology Co ltd
Current assignee: Opes Changzhou Energy Technology Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-06-16
Anticipated expiration: 2029-08-15

Abstract

The utility model relates to a lightweight photovoltaic module who possesses hard characteristic stacks polymer backplate, first package board, first grid plate, foaming polymer, second grid plate, second package board, solar wafer array, third package board and transparent PET from bottom to top in proper order to it forms to carry out the hot pressing. The utility model discloses the photovoltaic module who makes has good mechanical strength to have the lightweight concurrently.

Description

Lightweight photovoltaic module with rigid characteristics

Technical Field

The utility model relates to a photovoltaic module belongs to the photovoltaic technology field.

Background

At present, one of the existing photovoltaic modules is mainly made of photovoltaic glass, and the photovoltaic module comprises a glass front plate, a solar cell array and a polymer back plate which are sequentially stacked after being split, and is packaged after being subjected to hot pressing, and then aluminum frames are additionally arranged on the periphery of the photovoltaic module to increase the strength of the photovoltaic module.

The other type of the solar cell is mainly made of transparent polymer plastic films, the solar cell array and the polymer back plate are sequentially stacked after being split, and the solar cell array and the polymer back plate are packaged after being subjected to hot pressing. But the disadvantage is that the solar cell module has poor mechanical strength, and the solar cell inside the module is easily damaged after being stressed, thereby affecting the output power.

Therefore, the existing photovoltaic module is difficult to have light weight and good mechanical strength.

Disclosure of Invention

An object of the utility model is to provide a have good mechanical strength to have lightweight photovoltaic module that has hard characteristic concurrently.

In order to achieve the above purpose, the technical scheme of the utility model is that: a light photovoltaic module with a hard characteristic is formed by sequentially stacking a polymer back plate, a first packaging plate, a first grid plate, a foaming polymer, a second grid plate, a second packaging plate, a solar cell array, a third packaging plate and transparent PET from bottom to top and carrying out hot pressing.

Preferably, the polymer back plate is made of one or more of PET, PE, PVDF, PVF, EVA or THV and nylon, has a thickness of 0.05-0.9mm, and is a white or black plate body.

Preferably, the first packaging plate, the second packaging plate and the third packaging plate are made of EVA or POE, have a thickness of 0.1-0.7mm and are transparent plates.

Preferably, the first grid plate has a mass of 50-250 g/square meter and a pore diameter of 0.5-9.0 mm.

Preferably, the foamed polymer is made of one of PET, PS or PVC, and has a thickness of 1.0-30.0 mm.

Preferably, the second grid plate has a mass of 50 to 250 g/square meter, a pore diameter of 0.5 to 9.0mm, and the edges of the four sides are indented 0.5 to 10mm from the edges of the foamed polymer.

Preferably, the transparent PET is 0.05-0.9mm thick.

The first grid plate and the second grid plate are made of glass fibers.

After the structure of the oil adding device is adopted, the utility model discloses add foamed polymer on the basis of original preparation, in order to solve the problem that foamed polymer produces the bending of warping easily moreover, respectively place first net board and second net board in foamed polymer's upper and lower. In the process of hot lamination of the photovoltaic module, the first grid plate and the second grid plate are fused with the foaming polymer, and the first grid plate and the second grid plate can bear stress and have high mechanical strength and light weight requirements.

Drawings

Fig. 1 is an exploded view of the structure of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrated in the accompanying drawings.

The utility model relates to a lightweight photovoltaic module who has hard characteristic stacks polymer backplate 2, first package board 3, first grid 4, foaming polymer 5, second grid 6, second package board 7, solar wafer array 1, third package board 8 and transparent PET9 from bottom to top in proper order to it forms to carry out the hot pressing.

The utility model discloses in the preparation, first step: firstly, connecting a plurality of solar cells in series to form a solar cell array 1; the second step is that: then, sequentially stacking a polymer back plate 2 with the thickness of 0.35mm and the color of opaque, a transparent first packaging plate 3 with the thickness of 0.45mm and a first grid plate 4 from bottom to top, stacking a foamed polymer 5 with the thickness of 5mm, then placing a second grid plate 6 and an opaque second packaging plate 7, then continuously stacking the solar cell array 1 completed in the first step, and finally continuously stacking a transparent third packaging plate 8 and a last transparent PET9 with the thickness of 0.3 mm; the third step: the laminate completed in the second step is turned upside down with the original side facing up and placed in a laminator to complete the thermal lamination process. The foamed polymer 5 is heated during the thermal lamination process and fuses with the first grid plate 4 and the second grid plate 6 through the holes thereof to form an integrated assembly.

Referring to fig. 1, the first grid plate 4 has a mass of 160 g/square meter and a pore diameter of 4 mm. The second grid plate 6 has a mass of 160 g/square meter and a pore diameter of 4mm, and the edges of four sides are indented by 10mm compared with the edges of the foamed polymer 5. So as to avoid the adverse reaction between the water vapor entering the inside of the assembly through the gaps of the grid plate and the solar cell array 1.

The polymer back plate 2 is made of PET and is a white plate body, the first packaging plate 3, the second packaging plate 7 and the third packaging plate 8 are made of EVA, and the foaming polymer 5 is made of PET.

Wherein the laminating temperature of the laminating machine is 145 soil 5 ℃, and the vacuum time is 3-5 minutes. After the vacuum, the pressure was-10 Kpa and the time was delayed for 900 seconds.

The first grid plate 4 and the second grid plate 6 are made of glass fiber. Or can be made of materials with toughness and light weight, such as carbon fiber and the like.

The utility model discloses reach photovoltaic module's the warp quantization with lower cost's structure and taken into account the mechanical strength of subassembly to the foamed polymer 5 of 5mm thickness makes the sample with the structure subassembly of this embodiment, can reduce the weight of the every watt power of subassembly, can reduce to 20-25g/W from 90-100 g/W. And can resist the mechanical strength of 5400 pa. Therefore, the structure can greatly improve the bending resistance.

Claims

1. A lightweight photovoltaic module with rigid properties, characterized in that: the solar cell array is formed by sequentially stacking a polymer back plate (2), a first packaging plate (3), a first grid plate (4), a foaming polymer (5), a second grid plate (6), a second packaging plate (7), a solar cell array (1), a third packaging plate (8) and transparent PET (9) from bottom to top and carrying out hot pressing.

2. The photovoltaic module of claim 1, having stiffness characteristics, characterized by: the polymer back plate (2) is made of one or more of PET, PE, PVDF, PVF, EVA or THV and nylon in a composite mode, has the thickness of 0.05-0.9mm, and is a white or black plate body.

3. The photovoltaic module of claim 2, having stiffness characteristics, wherein: the first packaging plate (3), the second packaging plate (7) and the third packaging plate (8) are made of EVA (ethylene vinyl acetate) or POE (polyolefin elastomer), have the thickness of 0.1-0.7mm and are transparent plates.

4. The photovoltaic module of claim 1, having stiffness characteristics, characterized by: the first grid plate (4) has the mass of 50-250 g/square meter and the pore diameter of 0.5-9.0 mm.

5. The photovoltaic module of claim 1, having stiffness characteristics, characterized by: the foaming polymer (5) is made of one of PET, PS or PVC, and the thickness is 1.0-30.0 mm.

6. The photovoltaic module of claim 1, having stiffness characteristics, characterized by: the second grid plate (6) has the mass of 50-250 g/square meter and the pore diameter of 0.5-9.0mm, and the edges of four sides are retracted 0.5-10mm from the edges of the foamed polymer (5).

7. The photovoltaic module of claim 1, having stiffness characteristics, characterized by: the thickness of the transparent PET (9) is 0.05-0.9 mm.

8. The photovoltaic module of claim 1, having stiffness characteristics, characterized by: the first grid plate (4) and the second grid plate (6) are made of glass fibers.