CN218004883U

CN218004883U - Photovoltaic laminated glass

Info

Publication number: CN218004883U
Application number: CN202222155363.5U
Authority: CN
Inventors: 吴翔; 李勇; 范太勇; 张开志; 雷春江; 黄维
Original assignee: Sichuan Sg Energy Saving Glass Co ltd; CSG Holding Co Ltd
Current assignee: Sichuan Sg Energy Saving Glass Co ltd; CSG Holding Co Ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-12-09
Anticipated expiration: 2032-08-16

Abstract

The utility model relates to a photovoltaic laminated glass, which comprises a glass substrate, a battery substrate, a sealing adhesive layer and an interlayer intermediate film; the surface of the interlayer intermediate film is smaller than that of the glass substrate; the interlayer intermediate film is arranged between the glass substrate and the battery substrate; the sealing glue layer and the battery substrate and/or the interlayer intermediate film are arranged on the same plane and arranged at the periphery of the battery substrate and/or the interlayer intermediate film for isolating the battery substrate and/or the interlayer intermediate film from contacting with air; this photovoltaic laminated glass makes the edge of the photovoltaic laminated glass after laminating be the concave cavity state through the structure and the size relation of the glass substrate space of targeted adjustment photovoltaic laminated glass, the battery substrate space of a whole page and intermediate layer intermediate film to set up behind the sealant layer, can effectively prevent the contact of material such as steam in the air and intermediate layer intermediate film and battery substrate, prevent that mechanisms or materials such as photovoltaic chip electrical system from suffering destruction, effectively improve photovoltaic glass's life cycle.

Description

Photovoltaic laminated glass

Technical Field

The utility model relates to a photovoltaic glass field, in particular to photovoltaic laminated glass.

Background

The solar photovoltaic glass is a solar cell prepared by a laminating method or a rolling method, can generate electricity by utilizing solar radiation, and is special glass with a relevant current leading-out device and a cable. The solar cell is sealed between two glass plates through the film, and is a novel high-tech glass product for buildings. The glass cover plate is covered on the solar cell, so that high solar light transmittance can be guaranteed, and the glass cover plate subjected to toughening treatment also has stronger wind pressure resistance and the capability of bearing great day and night temperature difference change.

At present, the solar photovoltaic glass is ground type photovoltaic power station glass or BIPV (building integrated photovoltaic). BIPV technology is the technology of integrating solar power (photovoltaic) products into buildings, and the photovoltaic glass currently comprises cadmium telluride photovoltaic glass or photovoltaic glass such as monocrystalline silicon and polycrystalline silicon. In the BIPV, glass, an adhesive film layer and a battery substrate need to be packaged together to form a photovoltaic laminated glass, so as to generate electricity by using the photovoltaic laminated glass. Among them, the encapsulation structure has a very important influence on the life and performance of the photovoltaic laminated glass.

The existing photovoltaic glass packaging structure is mostly formed by adopting a glass substrate, a battery substrate and an interlayer intermediate film with the same page size, and although the photovoltaic glass packaging structure has a better photoelectric effect, in the application process of the photovoltaic glass of the structure, the interlayer intermediate film is generally made of transparent PVB, POV, EVA and other films which are easy to absorb water, so that the interlayer intermediate film can absorb water and get damp after being contacted with air for a long time, further the adverse effect on the battery substrate is caused, the service life and the service cycle of the photovoltaic glass are reduced, and the large-scale popularization and application of the photovoltaic glass are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The invention of the utility model aims to: aiming at the defect that the existing photovoltaic glass packaging structure is easy to absorb water and damp, the photovoltaic laminated glass is provided.

In order to realize the purpose, the utility model discloses a technical scheme be:

a photovoltaic laminated glass comprises a glass substrate 1, a battery substrate 4, a sealant layer 3 and an interlayer intermediate film 2; wherein, the surface of the interlayer intermediate film 2 is smaller than the glass substrate 1; the interlayer intermediate film 2 is arranged between the glass substrate 1 and the battery substrate 4; the sealant layer 3 and the battery substrate 4 and/or the interlayer intermediate film 2 are arranged on the same plane and are arranged around the battery substrate 4 and/or the interlayer intermediate film 2 for isolating the battery substrate 4 and/or the interlayer intermediate film 2 from air.

The utility model relates to a photovoltaic laminated glass, through the structure and the big or small relation of the glass substrate space of a whole page, battery substrate space of a whole page and intermediate layer intermediate film of pertinence adjustment photovoltaic laminated glass, the edge of the photovoltaic laminated glass who makes after laminating is the concave cavity state to after setting up the sealant layer, can effectively prevent the contact of material such as steam in the air and intermediate layer intermediate film and battery substrate, prevent that mechanisms such as photovoltaic chip electrical system or material from suffering destruction, effectively improve photovoltaic glass's life cycle.

The battery substrate 4 is a photoelectric conversion component with photovoltaic characteristics; preferably, the battery substrate 4 is a photovoltaic chip or a photovoltaic chip board.

Preferably, the sealant layer 3 is a two-component or one-component sealant layer.

Wherein, preferably, the interlayer intermediate film 2 is a transparent PVB, POV or EVA film.

Wherein, preferably, the distance from the sideline of the glass substrate 1 to the sideline of the interlayer intermediate film 2 is 5-20mm; the preferred distance, the sealed effect of sealant layer is better.

Wherein, preferably, the photovoltaic laminated glass comprises 1 glass substrate 1 and 1 interlayer intermediate film 2; the battery substrate 4 is a photovoltaic chip board; the size of the plate surface of the battery substrate 4 is the same as that of the glass substrate 1.

Preferably, the battery substrate 4 is divided into a thin film region 5 and a film removing region 6.

Preferably, the width of the sealant layer 3 is the same as that of the film removing area 6; the panel size of the interlayer intermediate film 2 is the same as that of the thin film region 6.

Preferably, the cell substrate 4 is a cadmium telluride thin film photovoltaic chip panel.

Wherein, preferably, the photovoltaic laminated glass comprises at least 2 glass substrates 1 and at least 2 interlayer films 2; the battery substrate 4 is a photovoltaic chip; the cell substrate 4 has the same size as the interlayer intermediate film 2.

Preferably, the photovoltaic chip is a cadmium telluride photovoltaic chip, a monocrystalline silicon photovoltaic chip or a polycrystalline silicon photovoltaic chip.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses photovoltaic intermediate layer glass's the portion is concave cavity state, after setting up the sealing glue layer, can effectively prevent the contact of materials such as steam in the air and intermediate layer intermediate coat and battery substrate, prevents that mechanisms such as photovoltaic chip electrical system or material from suffering destruction, and photovoltaic glass's life cycle is longer, and this photovoltaic intermediate layer glass photovoltaic performance is good, the stable performance, simple structure is fit for the industrial production, the photovoltaic intermediate layer glass's of being convenient for large-scale application.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of embodiment 1 of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of embodiment 2 of the present invention;

fig. 3 is a schematic plan view of a battery substrate according to embodiment 2 of the present invention.

The mark in the figure is: 1-a glass substrate; 2-interlayer intermediate film; 3-sealing the adhesive layer; 4-a battery substrate; 5-a thin film region; 6-membrane removal zone.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

A photovoltaic laminated glass (figure 1) is composed of 2 glass substrates 1, a cadmium telluride photovoltaic chip cell substrate 4, a double-component polyurethane sealant layer 3 and an interlayer intermediate film 2 of 2 PVB films; wherein, the distance from the sideline of the glass substrate 1 to the sideline of the interlayer intermediate film 2 is 10mm; the interlayer intermediate film 2 is arranged between the glass substrate 1 and the battery substrate 4; the sealant layer 3, the battery substrate 4 and the interlayer intermediate film 2 are arranged on the same plane and arranged around the battery substrate 4 and the interlayer intermediate film 2 for isolating the battery substrate 4 and the interlayer intermediate film 2 from air; the cell substrate 4 has the same surface size as the interlayer intermediate film 2.

Example 2

A photovoltaic laminated glass (figures 2 and 3) is composed of 1 glass substrate 1, a cell substrate 4 (cadmium telluride thin film photovoltaic chip plate), a bi-component polysulfide rubber sealant layer 3 and an interlayer intermediate film 2 of 1 EVA film; wherein, the distance from the sideline of the glass substrate 1 to the sideline of the interlayer intermediate film 2 is 5mm; the interlayer intermediate film 2 is arranged between the glass substrate 1 and the battery substrate 4; the sealant layer 3 and the interlayer intermediate film 2 are arranged on the same plane, and arranged around the interlayer intermediate film 2 for isolating the interlayer intermediate film 2 from air; the size of the layout of the battery substrate 4 is the same as that of the glass substrate 1, and the battery substrate 4 is divided into a film area 5 and a film removing area 6; the width of the sealant layer 3 is the same as that of the film removing area 6; the panel size of the interlayer film 2 is the same as the film zone 6.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A photovoltaic laminated glass comprises a glass substrate (1), a battery substrate (4), a sealant layer (3) and an interlayer intermediate film (2); the interlayer intermediate film is characterized in that the surface of the interlayer intermediate film (2) is smaller than that of the glass substrate (1); the interlayer intermediate film (2) is arranged between the glass substrate (1) and the battery substrate (4); the sealant layer (3) and the battery substrate (4) and/or the interlayer intermediate film (2) are arranged on the same plane and are arranged around the battery substrate (4) and/or the interlayer intermediate film (2) for isolating the battery substrate (4) and/or the interlayer intermediate film (2) from contacting with air.

2. The photovoltaic laminated glass according to claim 1, characterized in that said sealant layer (3) is a two-component or one-component sealant layer.

3. The photovoltaic laminated glass according to claim 1, characterized in that the interlayer film (2) is a transparent PVB, POV or EVA film.

4. The photovoltaic laminated glass according to claim 1, wherein the distance from the edge line of the glass substrate (1) to the edge line of the interlayer intermediate film (2) is 5-20mm.

5. The photovoltaic laminated glass according to claim 1, characterized in that it comprises 1 glass substrate (1) and 1 interlayer film (2); the battery substrate (4) is a photovoltaic chip board; the size of the plate surface of the battery substrate (4) is the same as that of the glass substrate (1).

6. The photovoltaic laminated glass according to claim 5, wherein the cell substrate (4) is divided into a thin film region (5) and a film removing region (6).

7. The photovoltaic laminated glass according to claim 6, wherein the width of the sealant layer (3) is the same as the width of the film removing region (6); the panel size of the interlayer middle film (2) is the same as that of the thin film area (5).

8. The photovoltaic laminated glass according to any one of claims 5 to 7, wherein the cell substrate (4) is a cadmium telluride thin film photovoltaic chip panel.

9. The photovoltaic laminated glass according to claim 1, characterized in that it comprises at least 2 glass substrates (1) and at least 2 interlayer interlayers (2); the cell substrate (4) is a photovoltaic chip; the size of the surface of the battery substrate (4) is the same as that of the interlayer intermediate film (2).

10. The photovoltaic laminated glass according to claim 9, wherein the photovoltaic chip is a cadmium telluride photovoltaic chip, a monocrystalline silicon photovoltaic chip, or a polycrystalline silicon photovoltaic chip.