CN216381063U

CN216381063U - Photovoltaic power generation assembly and photovoltaic power generation hollow glass

Info

Publication number: CN216381063U
Application number: CN202122942184.1U
Authority: CN
Inventors: 吴翔; 李勇; 赵静姝; 张开欣; 张�杰; 姜科吉
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: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-26
Anticipated expiration: 2031-11-25

Abstract

The utility model relates to the technical field of photovoltaic building materials, in particular to a photovoltaic power generation assembly and photovoltaic power generation hollow glass. The photovoltaic power generation assembly comprises a frame and a power generation film; the frame is provided with a top surface, a bottom surface and an inner side surface, wherein the top surface is opposite to the bottom surface, and the inner side surface is connected with the top surface and the bottom surface and is positioned at the inner side of the frame; the inner side surface of the frame is provided with the power generation film. Set up the photovoltaic power generation film on the medial surface of frame, in the direction of perpendicular to frame, can not block light, make full use of the medial surface moreover. Under the condition that light transmission is not influenced, the photovoltaic hollow glass has the photovoltaic power generation function and can be suitable for photovoltaic power generation hollow glass.

Description

Photovoltaic power generation assembly and photovoltaic power generation hollow glass

Technical Field

The utility model relates to the technical field of photovoltaic building materials, in particular to a photovoltaic power generation assembly and photovoltaic power generation hollow glass.

Background

The hollow glass is made by bonding two pieces of glass with an aluminum alloy frame containing a drying agent by using a high-air-tightness composite adhesive as a hollow structural adhesive. With the development of solar power generation technology, the mode of plating a photovoltaic power generation film on hollow glass of a building curtain wall to realize photovoltaic power generation is widely applied to buildings.

The conventional photovoltaic hollow glass mainly adopts two modes, namely, a cadmium telluride power generation film is plated on the surface of the glass, but the efficiency is only about 6%, the processing technology is complex, the practicability is poor, and the lighting is influenced; and secondly, the power generation film is arranged on the glass surface in the hollow cavity of the hollow glass, so that although the power generation efficiency is improved, the power generation film blocks light, the optical performance of the hollow glass is influenced, and the lighting requirement of the building glass is influenced.

For example, chinese patent No. CN105023964U discloses a hollow photovoltaic glass, which employs a photovoltaic film fixedly clamped in a hollow cavity between two sheets of glass. Chinese patent No. CN203441016U discloses a photovoltaic power generation hollow glass, in which a photovoltaic array is disposed in a hollow cavity. The mode that the photovoltaic power generation film is arranged in the hollow cavity influences the lighting function of the hollow glass.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: aiming at the problem that the lighting performance of hollow glass is affected by coating or installing a power generation film in a hollow cavity of the hollow glass for photovoltaic power generation in the prior art, a photovoltaic power generation assembly is provided. Through setting up the electricity generation film on the medial surface of frame for when this electricity generation subassembly is used for cavity glass, when having the electricity generation function, do not influence cavity glass's daylighting performance.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a photovoltaic power generation module includes a frame and a power generation film;

the frame is provided with a top surface, a bottom surface and an inner side surface, wherein the top surface is opposite to the bottom surface, and the inner side surface is connected with the top surface and the bottom surface and is positioned at the inner side of the frame; the top surface of the frame is used for connecting outer layer glass, and the bottom surface of the frame is used for connecting inner layer glass;

the inner side surface of the frame is provided with the power generation film.

The frame is usually a hollow aluminum strip frame, and the inside of the frame is filled with a molecular sieve. Generally square and quadrilateral in cross-section. The top and bottom surfaces of the frame are substantially parallel. Through the medial surface with the electricity generation film setting at the frame, the film is in on the medial surface, can receive light, can not block glass moreover and pass the space in frame middle part. The side surface of the frame is fully utilized, and the transparency of the power generation film is not required. After being applied to the hollow glass, the photovoltaic power generation is realized under the condition of ensuring the light transmission performance of the hollow glass.

In a preferred embodiment of the present invention, the inner side surface and the bottom surface form an included angle α, and α is an acute angle.

As a preferable embodiment of the present invention, 18 degrees. ltoreq. alpha.is < 90 degrees.

The power generation film is pasted on the inner side surface. The included angle between the inner side face and the bottom face is set to be an acute angle, so that the inner side face is an inclined face, the area of the inner side face is increased under the condition that the thickness between the bottom face and the top face is the same, a larger-area power generation film can be used, and the power generation efficiency is increased. In the square frame, the inner side surfaces of all the sides have the same or different inclination angles. As the angle α becomes smaller from 90 degrees, the area of the inner side surface becomes larger, and a larger area of the power generation film can be used.

As a preferable scheme of the utility model, a plurality of bulges are arranged on the inner side surface.

The bulges are arranged on the inner side surface, so that the surface area of the inner side surface is increased, and the area of the photovoltaic power generation film can be increased. Meanwhile, the protrusions can be arranged in an array form, and illumination light can be received uniformly.

As a preferable scheme of the utility model, the photovoltaic power generation assembly further comprises a lead, wherein one end of the lead is connected with the power generation film; the other end of the lead passes through the frame to the outside of the frame. The lead wires connect the positive and negative electrodes of the power generation film to an external storage battery or a battery management system. And a plurality of photovoltaic power generation assemblies are combined by a BMS battery management system to be in parallel connection, series connection, inversion, energy storage and other electrical gasification designs, so that a BIPV product with higher application value is obtained.

The photovoltaic power generation hollow glass comprises outer layer glass, inner layer glass and the photovoltaic power generation assembly; the outer layer glass, the frame and the inner layer glass are arranged in a laminated mode to form a hollow cavity; the inner side surface is positioned in the hollow cavity.

As a preferable scheme of the utility model, one side of the outer layer glass, which is close to the inner layer glass, is provided with a coating.

As a preferable scheme of the utility model, one side of the inner layer glass, which is close to the outer layer glass, is provided with a coating.

As a preferable scheme of the utility model, the coating is a coating which is made by taking at least one of SiAl, NiCr, CuAl, SnAl, AZO, GZO, ITO, Ag, TiO, ZnSn and ZnAl as a target. The coating target is a coating material commonly used in low-emissivity coated glass, and a coating containing the material is formed after sputtering coating.

As a preferable aspect of the present invention, the outer glass includes a first glass sheet, a glue layer, and a second glass sheet which are laminated; the inner layer of glass comprises a third glass sheet;

the first glass sheet, the second glass sheet and the third glass sheet are made of ultra-white glass;

the glue layer comprises at least one of EVA glue, PVB glue and SGP glue.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. according to the photovoltaic power generation assembly, the bottom surface and the top surface of the frame are used for connecting glass, the photovoltaic power generation film is arranged on the inner side surface of the frame, light cannot be blocked in the direction perpendicular to the frame, and the inner side surface is fully utilized. Under the condition that light transmission is not influenced, the photovoltaic hollow glass has the photovoltaic power generation function and can be suitable for photovoltaic power generation hollow glass.

2. According to the photovoltaic power generation assembly, the included angle between the inner side surface and the bottom surface is set to be an acute angle, and is further defined to be an acute angle of 18-90 degrees; or the inner side surface is provided with a plurality of bulges, so that the area of the inner side surface can be increased, and the area of the power generation film is increased, and the power generation efficiency is improved. And the battery management system is further connected with a BMS battery management system by combining with a lead, so that a BIPV product with application value can be obtained.

3. According to the photovoltaic power generation hollow glass, the photovoltaic power generation assembly is used, the side face of the hollow cavity can be fully utilized, particularly, the area of the side face is larger under the condition that the thickness of the hollow cavity is larger, and the photovoltaic power generation assembly is more favorably applied. The coating film coating is arranged in the hollow cavity chamber, so that the low radiation performance of the hollow glass can be kept. Under the condition of adopting high-quality coated glass and high-quality monocrystalline silicon glass, the power generation efficiency can reach more than 10 percent, and the solar photovoltaic solar energy power generation system can be used in scenes such as BIPV (building integrated photovoltaic), agricultural greenhouses, scientific and technical houses and the like.

Drawings

Fig. 1 is a schematic structural view of a photovoltaic power generation module of example 1.

Fig. 2 is a schematic top view of the photovoltaic power generation module of example 1.

Fig. 3 is a cross-sectional diagrammatic view at a-a of fig. 2.

Fig. 4 is a cross-sectional pictorial illustration of fig. 2 at B-B.

Fig. 5 is a schematic structural view of a photovoltaic power generation insulating glass in example 2.

Fig. 6 is a schematic structural view of a photovoltaic power generation insulating glass in example 3.

Fig. 7 is a schematic structural view of a photovoltaic power generation insulating glass in example 4.

Icon:

100-a hollow chamber; 301-top surface; 302-bottom surface; 303-outer side; 304-medial side;

1-outer layer glass; 11-a first glass sheet; 12-a second glass sheet; 13-glue layer; 2-inner layer glass; 3-a frame; 31-molecular sieve; 4-power generation film; 41-a wire; 5-coating film coating.

Detailed Description

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

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1

A photovoltaic power generation module, as shown in FIGS. 1 and 2, includes a frame 3 and a power generation film 4;

as shown in fig. 3 and 4, the frame 3 has a top surface 301 and a bottom surface 302 opposite to each other, and an inner side surface 304 connecting the top surface 301 and the bottom surface 302 and located inside the frame 3; the inner side face 304 of the frame 3 is provided with the power generation film 4. When the photovoltaic power generation assembly is used for hollow glass, the top surface 301 of the frame 3 is used for connecting the outer layer glass 1, and the bottom surface 302 of the frame 3 is used for connecting the inner layer glass 2;

the frame 3 is a hollow aluminum bar frame, and the inside of the frame is filled with a molecular sieve 31. The whole is polygonal or annular. In the present embodiment, the frame 3 is square as a whole, and as shown in fig. 3 and 4, the cross section of the frame 3 is quadrangular, for example, rectangular. In this embodiment, the cross section is a right trapezoid, and the upper and lower bottom sides of the trapezoid respectively correspond to the top surface 301 and the bottom surface 302 of the frame 3. The waist of the trapezoid perpendicular to both bottom edges corresponds to the outer side 303 of the frame 3; the other oblique waist of the trapezoid corresponds to the inner side 304 of the frame 3. The top surface 301 and the bottom surface 302 of the frame 3 are substantially parallel. By arranging the power generating film 4 on the inner side 304 of the frame 3, the film is on the inner side 304 and can receive light without blocking the space where the glass passes through the middle of the frame 3. The side face of the frame 3 is fully utilized and transparency of the power generation film 4 is not required. Cadmium telluride thin film, copper indium gallium selenide thin film and amorphous silicon thin film can be adopted. Or the power generation film can adopt a monocrystalline silicon solar panel or a polycrystalline silicon solar panel. After being applied to the hollow glass, the photovoltaic power generation is realized under the condition of ensuring the light transmission performance of the hollow glass. In some embodiments, an array of protrusions may also be disposed on the inner side to increase the surface area of the inner side, thereby increasing the area of the power generating film.

The inner side 304 of the frame 3 and the bottom 302 of the frame 3 form an acute angle. In a further scheme, an included angle between the inner side surface 304 of the frame 3 and the bottom surface 302 of the frame 3 is alpha, and alpha is more than or equal to 18 degrees and less than 90 degrees. In this example, α is 60 degrees. The inner side faces 304 on the respective sides of the square frame 3 are inclined at the same angle or at different angles.

As shown in fig. 2 and 3, the photovoltaic power generation module further includes a lead 41, and one end of the lead 41 is connected to the power generation film 4; the other end of the wire 41 passes through the frame 3 to the outside of the frame 3. The frame 3 may be formed by bending and connecting a whole frame strip, and the lead wire 41 may be disposed at the connection position of the frame strip.

The lead 41 connects the positive electrode and the negative electrode of the power generation film 4 to an external storage battery or a battery management system. And a plurality of photovoltaic power generation assemblies are combined by a BMS battery management system to be in parallel connection, series connection, inversion, energy storage and other electrical gasification designs, so that a BIPV product with higher application value is obtained.

Example 2

A photovoltaic power generation hollow glass is shown in figure 5 and comprises an outer layer glass 1, an inner layer glass 2 and a photovoltaic power generation assembly as shown in the embodiment 1; the outer layer glass 1, the frame 3 and the inner layer glass 2 are stacked and bonded together by glue, and a hollow cavity 100 is formed in the middle; the inner side 304 is located within the hollow chamber 100.

And a coating 5 is arranged on one side of the outer layer glass 1 close to the inner layer glass 2. The coating 5 is a coating prepared by taking at least one of SiAl, NiCr, CuAl, SnAl, AZO, GZO, ITO, Ag, TiO, ZnSn and ZnAl as a target material. The outer glass layer 1 comprises a first glass sheet 11, a glue layer 13 and a second glass sheet 12 which are laminated; the inner layer glass 2 comprises a third glass sheet; the first glass sheet 11, the second glass sheet 12 and the third glass sheet are made of ultra-white glass; the glue layer 13 comprises at least one of EVA glue, PVB glue and SGP glue.

In this embodiment, 5mm of ultra-white glass is used for the first glass sheet 11 and the second glass sheet 12, and 5mm of ultra-white glass is used for the third glass sheet. The frame 3 has a thickness of 15mm and the inner side 304 and the bottom 302 are angled at about 60 degrees. The coating 5 on the first glass sheet 11 is a coating 5 made of Ag target material, and the power generation film 4 adopts a monocrystalline silicon solar panel.

The power generation efficiency gradually increases as the included angle α decreases. The generating efficiency is about 10% when the included angle is 90 degrees. The generating efficiency is about 15% at an included angle of 45 degrees, about 20% at an included angle of 30 degrees, about 24% at an included angle of 18 degrees, and about 30% of the photovoltaic power generation film under direct sunlight (namely, when alpha is 0 degree). The photovoltaic power generation efficiency of the power generation film 4 reaches more than 10%. The solar photovoltaic power generation system can be used for scenes such as BIPV (building integrated photovoltaics), agricultural greenhouses and scientific and technical houses.

Example 3

A photovoltaic power generation hollow glass is shown in figure 6, and the difference with the embodiment 2 is that one side of the inner layer glass 2 close to the outer layer glass 1 is provided with a coating 5. And a coating 5 is not arranged on one side of the outer layer glass 1 close to the inner layer glass 2. The frame 3 is made of aluminum having a rectangular cross section.

Example 4

A photovoltaic power generation hollow glass is shown in figure 7, and the difference with the embodiment 2 is that one side of the inner layer glass 2 close to the outer layer glass 1 is provided with a coating 5. And a coating 5 is not arranged on one side of the outer layer glass 1 close to the inner layer glass 2. A plurality of protrusions are arranged on the inner side surface 304 of the frame 3. By providing the inner surface 304 with the protrusions, the surface area of the inner surface 304 can be increased, and the area of the photovoltaic power generation thin film 4 can be increased. Meanwhile, the protrusions can be arranged in an array form, and illumination light can be received uniformly.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A photovoltaic power generation module, characterized by comprising a frame (3) and a power generation film (4);

the frame (3) has opposite top (301) and bottom (302) surfaces and an inner side surface (304) connecting the top (301) and bottom (302) surfaces and located inside the frame (3);

the inner side face (304) of the frame (3) is provided with the power generation film (4).

2. The photovoltaic power generation assembly of claim 1, wherein the inner side surface (304) and the bottom surface (302) form an angle α, which is an acute angle.

3. The photovoltaic power generation assembly of claim 2, wherein 18 degrees ≦ α < 90 degrees.

4. The photovoltaic power generation assembly of claim 1, wherein the inner side (304) is provided with a plurality of protrusions.

5. The photovoltaic power generation assembly according to claim 1, further comprising a lead wire (41), one end of the lead wire (41) being connected to the power generation film (4); the other end of the lead (41) passes through the frame (3) to the outside of the frame (3).

6. A photovoltaic power generation insulating glass, characterized by comprising an outer layer glass (1), an inner layer glass (2), and a photovoltaic power generation assembly according to any one of claims 1 to 5;

the outer layer glass (1), the frame (3) and the inner layer glass (2) are stacked to form a hollow cavity (100); the inner side (304) is located within the hollow chamber (100).

7. The photovoltaic power generation insulating glass according to claim 6, characterized in that one side of the outer glass (1) close to the inner glass (2) is provided with a coating (5).

8. The photovoltaic power generation insulating glass according to claim 6, characterized in that one side of the inner layer glass (2) close to the outer layer glass (1) is provided with a coating (5).

9. The photovoltaic power generation hollow glass according to claim 7 or 8, wherein the coating (5) is a coating made of at least one of SiAl, NiCr, CuAl, SnAl, AZO, GZO, ITO, Ag, TiO, ZnSn and ZnAl as a target material.

10. The photovoltaic power generation insulating glass according to claim 6, characterized in that the outer glass (1) comprises a first glass sheet (11), a glue layer (13) and a second glass sheet (12) laminated; the inner layer of glass (2) comprises a third glass sheet;

the first glass sheet (11), the second glass sheet (12) and the third glass sheet are made of ultra-white glass;

the glue layer (13) comprises at least one of EVA glue, PVB glue and SGP glue.